CN216329566U

CN216329566U - Be applied to mould of suppression cup-shaped product

Info

Publication number: CN216329566U
Application number: CN202122459379.0U
Authority: CN
Inventors: 陈红
Original assignee: Dongguan Shunhe Precision Mould Co ltd
Current assignee: Dongguan Shunhe Precision Mould Co ltd
Priority date: 2021-10-12
Filing date: 2021-10-12
Publication date: 2022-04-19
Anticipated expiration: 2031-10-12

Abstract

The utility model relates to the technical field of dies, in particular to a die for pressing a cup-shaped product. The technical scheme comprises the following steps: the die comprises a die sleeve, wherein a die core is fixedly sleeved on the inner wall of the die sleeve, a lower punch is inserted in the inner activity of the die core, a rod core is inserted in the inner activity of the lower punch, a fixed seat is fixedly connected with the bottom end of the rod core, an upper punch is inserted in the inner activity of the die core and is positioned above the rod core, a concave groove is formed in the bottom of the upper punch, the lower punch and the rod core are assembled to form a blank cavity, a core hole is formed in the die core, and the inner diameter of the core hole is matched with the outer diameter of the bottom end of the upper punch. The utility model solves the problems that the density distribution of the existing cup-shaped die is not uniform during pressing, cracks are easily generated at the boundary of the sectional area of a product during demoulding, and deformation is easily caused during sintering.

Description

Be applied to mould of suppression cup-shaped product

Technical Field

The utility model relates to the technical field of dies, in particular to a die for pressing a cup-shaped product.

Background

The mould is various moulds and tools for obtaining required products by injection molding, blow molding, extrusion, die casting or forging forming, smelting, stamping and other methods in industrial production. In short, a mold is a tool used to make a shaped article, the tool being made up of various parts, different molds being made up of different parts. The processing of the appearance of an article is realized mainly through the change of the physical state of a formed material. The element has the name of "industrial mother".

The prior mold structure aims at a cup-shaped product, flat chamfers are formed on the cup-shaped product in order to reduce the punch in grinding, the density distribution is not uniform during pressing, cracks are easy to generate at the section boundary of the product during demolding, and deformation is easy to cause during sintering.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems in the prior art and provides a mold applied to pressing cup-shaped products.

The technical scheme of the utility model is as follows: the utility model provides a be applied to mould of suppression cup-shaped product, includes the die sleeve, the fixed cover of inner wall of die sleeve is equipped with the mold core, the inside activity of mold core is pegged graft and is had the undershoot, the inside activity of undershoot is pegged graft and is had the pole core, the bottom fixedly connected with fixing base of pole core, the inside activity of mold core is pegged graft and is had the upper punch, just the upper punch is located the top of pole core, the concave groove has been seted up to the bottom of upper punch, the upper punch, undershoot and pole core compound die are in order to form the embryo spare chamber.

Preferably, a core hole is formed in the mold core, and the inner diameter of the core hole is matched with the outer diameter of the bottom end of the upper punch.

Preferably, the inner diameter of the core hole matches the periphery of the top end of the undershoot.

Preferably, a driving mechanism a is connected to the top of the upper punch in a driving manner, and the driving mechanism a is used for driving the upper punch to move up and down.

Preferably, a driving mechanism b is connected to the bottom of the lower punch in a driving manner, and the driving mechanism b is used for driving the lower punch to move up and down.

Preferably, an inclined feeding mechanism is arranged above the core hole, and the feeding mechanism is used for feeding materials into the core hole.

Compared with the prior art, the utility model has the following beneficial technical effects:

the concave groove is arranged, so that the unit volume of the bottom of the blank can be enlarged, the density difference of the bottom separation area of the blank is corrected, the material distribution of the area is more uniform, and the sintering deformation and the demoulding of the area to generate cracks can be effectively avoided; meanwhile, in the pressing process, the rod core and the side surface of the blank relatively move in the same direction, namely move faster, and by means of friction between the material and the inner wall of the core hole, the density distribution uniformity of the blank in the height direction can be improved, and the requirement of uniform density distribution of material pressed blanks can be better met; thereby resulting in a cup-shaped product of better quality.

Drawings

FIG. 1 is a front view of a cut-away view of the structure of the present invention in a packed state;

FIG. 2 is a front view of a sectional view of the present invention in a pressed state.

Reference numerals: 1. die sleeve; 2. a mold core; 3. punching; 4. undershoot; 5. a fixed seat; 6. a rod core; 7. a core hole; 8. a blank; 9. a concave groove.

Detailed Description

The technical solution of the present invention is further explained with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-2, the die for pressing cup-shaped products provided by the utility model comprises a die sleeve 1, wherein a die core 2 is fixedly sleeved on the inner wall of the die sleeve 1, a lower punch 4 is movably inserted in the die core 2, a rod core 6 is movably inserted in the lower punch 4, a fixed seat 5 is fixedly connected to the bottom end of the rod core 6, an upper punch 3 is movably inserted in the die core 2, the upper punch 3 is positioned above the rod core 6, the upper punch 3, the lower punch 4 and the rod core 6 are assembled to form a blank cavity, and a blank 8 is formed in the blank cavity under the common extrusion of the upper punch 3, the lower punch 4 and the rod core 6.

It should be noted that: a core hole 7 is formed in the mold core 2, and the inner diameter of the core hole 7 is matched with the outer diameter of the bottom end of the upper punch 3; the inner diameter of the core hole 7 is matched with the periphery of the top end of the lower punch 4; the top of the upper punch 3 is in driving connection with a driving mechanism a, and the driving mechanism a is used for driving the upper punch 3 to move up and down; the bottom of the lower punch 4 is connected with a driving mechanism b in a driving mode, and the driving mechanism b is used for driving the lower punch 4 to move up and down; an inclined feeding mechanism is arranged above the core hole 7, and the feeding mechanism can feed materials into the core hole 7 from the upper part of the core hole 7.

Firstly, the driving mechanism a drives the upper punch 3 to rise to expose the top end part of the core hole 7, meanwhile, the driving mechanism b drives the lower punch 4 to fall by a certain height, then, the feeding mechanism feeds materials into the core hole 7, and after the feeding is finished, the driving mechanism a drives the upper punch 3 to fall and the driving mechanism b drives the rod core 6 to rise; it should be noted that, under the positioning and fixing of the fixing seat 5, the rod core 6 is fixed and is extruded under the relative movement of the upper punch 3 and the lower punch 4, so as to press the blank 8, during the pressing process, the rod core 6 and the side surface of the blank 8 generate relative movement, i.e. move faster, and by means of the friction between the material and the inner wall of the core hole 7, the density distribution uniformity of the blank 8 in the height direction can be improved, and the requirement of uniform distribution of the material pressed blank density can be better satisfied; thereby resulting in a cup-shaped product of better quality.

In this embodiment, the bottom of the upper punch 3 is provided with a concave groove 9.

Through setting up concave groove 9, can enlarge the volume of embryo 8 bottom to rectify the density difference of embryo 8 bottom separation zone, make the material distribution in this region more even, can effectively avoid its sintering deformation, drawing of patterns to produce the crackle.

Based on the teachings of the present disclosure and the associated embodiments, those skilled in the art will be able to make numerous alternative modifications and combinations to the specific embodiments described above.

Claims

1. The utility model provides a be applied to mould of suppression cup-shaped product, includes die sleeve (1), the fixed cover in inner wall of die sleeve (1) is equipped with mold core (2), its characterized in that: the die is characterized in that a lower punch (4) is movably inserted into the die core (2), a rod core (6) is movably inserted into the lower punch (4), a fixed seat (5) is fixedly connected to the bottom end of the rod core (6), an upper punch (3) is movably inserted into the die core (2), the upper punch (3) is located above the rod core (6), a concave groove (9) is formed in the bottom of the upper punch (3), and the upper punch (3), the lower punch (4) and the rod core (6) are assembled to form a blank cavity.

2. A die for pressing cup-shaped products according to claim 1, wherein the die core (2) is internally provided with a core hole (7), and the inner diameter of the core hole (7) is matched with the outer diameter of the bottom end of the upper punch (3).

3. A die for pressing cup-shaped products according to claim 2, characterized in that the inner diameter of the core hole (7) matches the top periphery of the lower punch (4).

4. A die for pressing cup-shaped products according to claim 1, wherein the upper punch (3) is connected with a drive mechanism a in a top driving manner, and the drive mechanism a is used for driving the upper punch (3) to move up and down.

5. A die for pressing cup-shaped products according to claim 4, wherein the bottom of the lower punch (4) is drivingly connected with a driving mechanism b for driving the lower punch (4) up and down.

6. A mould for pressing cup-shaped products according to claim 2, wherein above the core hole (7) is arranged an inclined feeding means for feeding material into the core hole (7).