CN221909629U - A cold extrusion die for aluminum alloy door lock guard plate - Google Patents

Abstract

The utility model relates to a cold extrusion die for an aluminum alloy door lock guard plate, comprising a top plate, a movable die plate, a male die core, a static die plate, a female die core and a bottom plate, a forming cavity with an inverted T-shaped cross section and penetrating the female die core from top to bottom is provided in the female die core, a sliding die core matching the forming cavity and having a height less than the height of the forming cavity is provided in the forming cavity, a plurality of ejectors with upper ends extending into the forming cavity are pierced on the static die plate, the lower ends of the ejectors are fixedly connected to an ejector plate, two support blocks distributed at intervals are fixedly connected on the bottom plate, the static die plate is fixedly connected to the two support blocks, at least two slide bars located between the two support blocks are fixedly connected on the bottom plate, the ejector plate is pierced on a plurality of slide bars and located between the two support blocks, and a spring located between the ejector plate and the bottom plate is sleeved on the slide bar. The cold extrusion die for an aluminum alloy door lock guard plate realizes synchronous demoulding under the action of the sliding die core, makes the die structure simpler and more compact, and improves production efficiency by shortening the molding cycle.

Description

A cold extrusion die for aluminum alloy door lock guard plate

Technical Field

The utility model relates to the technical field of door lock accessories production, in particular to a cold extrusion die for an aluminum alloy door lock guard plate.

Background Art

When producing the door lock guard plate shown in FIG1 , cold extrusion molding technology is generally used. Specifically, the blank is placed in a cold extrusion mold and extruded into shape by the cooperation of a male die and a female die. In the prior art, the male die and the female die are separately fixedly arranged in the cold extrusion mold. After the cold extrusion mold is opened, the demoulding needs to be realized by the action of the ejection mechanism, resulting in a relatively complex mold structure and high cost. In addition, the single demoulding action leads to a long cycle of a single cold extrusion molding operation, which affects the production efficiency.

In view of the above problems, the present invention makes improvements.

Summary of the invention

The utility model provides a cold extrusion die for an aluminum alloy door lock guard plate, which solves the above-mentioned problems existing in the prior art during use.

The technical solution of the utility model is achieved in this way:

A cold extrusion die for an aluminum alloy door lock guard plate, comprising a top plate, a movable template, a punch core, a static template, a die core and a bottom plate, wherein the movable template is fixedly connected to the top plate, the punch core is fixedly connected to the movable template, the die core is fixedly connected to the static template and is opposite to the punch core, a forming cavity with an inverted T-shaped cross section and penetrating the die core up and down is provided in the die core, a sliding die core matching the forming cavity and having a height less than the height of the forming cavity is arranged in the forming cavity, a plurality of ejectors whose upper ends extend into the forming cavity are penetrated on the static template, the lower ends of the ejectors are fixedly connected to the ejector plate, two support blocks distributed at intervals are fixedly connected to the bottom plate, the static template is fixedly connected to the two support blocks, at least two sliding rods located between the two support blocks are fixedly connected to the bottom plate, the ejector plate is penetrated on a plurality of sliding rods and located between the two support blocks, and a spring located between the ejector plate and the bottom plate is sleeved on the sliding rod.

Preferably, the cross-section of the punch core is T-shaped, and the punch core is provided with a first mounting sleeve that matches the punch core and is fixedly connected to the movable mold plate.

Preferably, the die core is in a truncated cone shape, and a second mounting sleeve matching the die core and fixedly connected to the stationary mold plate is provided on the die core.

Preferably, a positioning groove matching with the female mold core is provided on the upper surface of the static mold plate, and the lower end of the female mold core is placed in the positioning groove.

Preferably, a plurality of first limiting columns are fixedly connected to the movable template, and a plurality of second limiting columns corresponding to the first limiting columns are fixedly connected to the static template.

Preferably, the ejector pin is in an inverted T-shape, and the ejector plate includes an ejector upper plate and an ejector lower plate. A limiting groove matching the large end of the ejector pin is provided on the lower surface of the ejector upper plate. The ejector pin passes through the ejector upper plate so that the large end of the ejector pin is retained in the limiting groove, and the ejector lower plate is fixedly connected to the lower surface of the ejector upper plate to shield the limiting groove.

Preferably, a sliding bearing sleeved on the sliding rod is fixedly connected to the ejector plate.

In summary, the beneficial effects of the utility model are: by sliding the sliding die core in the molding cavity, the blank is extruded and molded in cooperation with the punch core and the molding cavity when the mold is closed, and the molded product is ejected from the molding cavity to achieve demolding when the mold is separated, thereby shortening the operation cycle of single cold extrusion molding, improving production efficiency, making the structure of the mold simple and compact, and reducing production costs.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

FIG1 is a door lock guard plate formed by cold extrusion of the utility model;

Fig. 2 is a schematic diagram of the structure of the utility model;

FIG3 is an exploded schematic diagram of the present utility model;

FIG4 is a schematic cross-sectional view of the utility model;

FIG. 5 is a partial exploded schematic diagram of the present invention.

In the figure: 1, ejector plate; 2, movable template; 3, punch core; 4, static template; 41, positioning groove; 5, die core; 51, molding cavity; 6, bottom plate; 7, sliding mold core; 8, ejector; 9, ejector plate; 91, ejector upper plate; 911, limiting groove; 92, ejector lower plate; 10, support block; 11, slide rod; 12, spring; 13, first mounting sleeve; 14, second mounting sleeve; 15, first limiting column; 16, second limiting column; 17, sliding bearing; 18, guide column.

DETAILED DESCRIPTION

The following will be combined with the accompanying drawings 1-5 of the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

As shown in the figure, a cold extrusion die for an aluminum alloy door lock guard plate comprises a top plate 1, a movable die plate 2, a punch core 3, a static die plate 4, a die core 5 and a bottom plate 6, wherein the movable die plate 2 is fixedly connected to the top plate 1, the punch core 3 is fixedly connected to the movable die plate 2, the die core 5 is fixedly connected to the static die plate 4 and is opposite to the punch core 3, a forming cavity 51 with an inverted T-shaped cross section and penetrating the die core 5 from top to bottom is provided in the die core 5, a sliding die core 7 matching the forming cavity 51 and having a height less than that of the forming cavity 51 is provided in the forming cavity 51, a plurality of ejector pins 8 with upper ends extending into the forming cavity 51 are pierced on the static die plate 4, the lower ends of the ejector pins 8 are fixedly connected to the ejector plate 9, and the bottom Two spaced support blocks 10 are fixedly connected to the plate 6, the static template 4 is fixedly connected to the two support blocks 10, at least two slide bars 11 located between the two support blocks 10 are fixedly connected to the bottom plate 6, the ejector plate 9 is passed through a plurality of slide bars 11 and is located between the two support blocks 10, the slide bar 11 is sleeved with a spring 12 located between the ejector plate 9 and the bottom plate 6, under the action of the spring 12, the ejector plate 9 drives the ejector 8 to press against the end surface of the sliding mold core 7, a guide column 18 is fixedly connected to the support plate, the ejector plate 1 is passed through the guide column 18, the guide column 18 provides guidance for the movement of the ejector plate 1, and ensures the stability of the ejector plate 1 when driving the movable template 2 and the punch core 3 to move.

Specifically, the punch core 3 is fixedly connected to the structure on the movable die plate 2:

The cross-section of the punch core 3 is T-shaped, and the punch core 3 is sleeved with a first mounting sleeve 13 that matches the punch core 3 and is fixedly connected to the movable template 2. The first mounting sleeve 13 applies a limit to the punch core 3, so that the punch core 3 and the movable template 2 are fixedly connected, which facilitates the disassembly and assembly of the punch core 3, thereby facilitating the replacement of the punch core 3 with different mold heads according to different product requirements.

Specifically, the structure in which the die core 5 is fixedly connected to the static die plate 4 is as follows:

The die core 5 is in a truncated cone shape, and is sleeved with a second mounting sleeve 14 which matches the die core 5 and is fixedly connected to the static mold plate 4. The second mounting sleeve 14 limits the die core 5 so that the die core 5 and the static mold plate 4 are fixedly connected, which facilitates the disassembly and assembly of the die core 5, thereby facilitating the replacement of the die core 5 with a different molding cavity 51 according to different product requirements.

Specifically, the ejector pin 8 is fixedly connected to the ejector pin plate 9:

The ejector pin 8 is in an inverted T shape, and the ejector plate 9 includes an ejector upper plate 91 and an ejector lower plate 92. A limiting groove 911 matching the large end of the ejector pin 8 is provided on the lower surface of the ejector upper plate 91. The ejector pin 8 passes through the ejector upper plate 91 so that the large end of the ejector pin 8 is retained in the limiting groove 911. The ejector lower plate 92 is fixedly connected to the lower surface of the ejector upper plate 91 to shield the limiting groove 911. The large end of the ejector pin 8 is retained in the limiting groove 911 by the ejector lower plate 92, so that the ejector pin 8 and the ejector plate 9 are fixedly connected, which facilitates the assembly of the ejector pin 8 and ensures the stability of the connection between the ejector pin 8 and the ejector plate 9.

In the above embodiment, the ejector plate 1 is connected to the driving device of the mold, and the driving device drives the ejector plate 1, the movable mold plate 2 and the punch core 3 to reciprocate to realize mold closing and mold opening. When the mold is closed, the blank transported between the punch core 3 and the die core 5 is pushed into the molding cavity 51 by the punch core 3, and at the same time, the sliding mold core 7 is pushed inward in the molding cavity 51, and the sliding mold core 7 drives the ejector plate 9 to slide toward the bottom plate 6 on the slide rod 11 and compress the spring 12. When the sliding mold core 7 is pushed and slides until its end abuts against the static mold plate 4, the die head of the punch core 3 is completely extended into the molding cavity 51 and cooperates with the molding cavity 51 and the sliding mold core 7 to extrude the blank. When the mold is opened, the punch core 3 is driven by the driving device The sliding mold core 7 is driven by the ejector plate 9 to withdraw from the molding cavity 51, and the spring 12 is reset to drive the ejector plate 9 to drive the ejector pin 8 to extend into the molding cavity 51. The sliding mold core 7 moves outward in the molding cavity 51 under the push of the ejector pin 8, thereby ejecting the molded product formed in the molding cavity 51 from the molding cavity 51 to achieve demolding. In the above working process, the sliding mold core 7 slides in the molding cavity 51, and the blank is extruded and molded in cooperation with the punch core 3 and the molding cavity 51 when the mold is closed, and the molded product is ejected from the molding cavity 51 to achieve demolding when the mold is separated, which shortens the operation cycle of single cold extrusion molding, improves production efficiency, makes the structure of the mold simple and compact, and reduces production costs.

Preferably, a positioning groove 41 matching the die core 5 is provided on the upper surface of the static template 4, and the lower end of the die core 5 is placed in the positioning groove 41. The positioning groove 41 plays a positioning role for the die core 5. When the die core 5 cooperates with the punch core 3 to extrude the blank, it is ensured that the die core 5 will not produce radial displacement due to pressure, thereby ensuring the quality of the product after extrusion.

Preferably, a plurality of first limit columns 15 are fixedly connected to the movable template 2, and a plurality of second limit columns 16 corresponding to the first limit columns 15 are fixedly connected to the static template 4. After the punch core 3 and the die core 5 are completely molded, the first limit columns 15 and the second limit columns 16 abut against each other, and the first limit columns 15 and the second limit columns 16 are used to limit the movement of the punch core 3 toward the die core 5, so as to avoid damage to the mold due to excessive fit between the punch core 3 and the die core 5.

Preferably, the ejector plate 9 is fixedly connected with a sliding bearing 17 sleeved on the slide rod 11.

The smoothness of the ejector plate 9 when sliding on the slide rod 11 is ensured, thereby ensuring the stability of demoulding.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. The utility model provides an aluminum alloy door lock backplate cold extrusion mould, includes roof (1), movable mould board (2), terrace die benevolence (3), quiet template (4), die benevolence (5) and bottom plate (6), movable mould board (2) fixed connection is on roof (1), terrace die benevolence (3) fixed connection is on movable mould board (2), die benevolence (5) fixed connection is relative with terrace die benevolence (3) on quiet template (4), its characterized in that: the forming die comprises a die core (5), wherein a forming cavity (51) with an inverted T-shaped section and vertically penetrating through the die core (5) is formed in the die core (5), a sliding die core (7) which is matched with the forming cavity (51) and is smaller than the forming cavity (51) in height is arranged in the forming cavity (51), a plurality of ejector pins (8) with upper ends extending into the forming cavity (51) are arranged on a static die plate (4) in a penetrating mode, the lower ends of the ejector pins (8) are fixedly connected to an ejector pin plate (9), two supporting blocks (10) which are distributed at intervals are fixedly connected to a bottom plate (6), the static die plate (4) is fixedly connected to two supporting blocks (10), at least two sliding rods (11) which are located between the two supporting blocks (10) are fixedly connected to the bottom plate (6), springs (12) located between the ejector pin plate (9) and the bottom plate (6) are sleeved on the ejector pin plate (11).

2. The cold extrusion die for the aluminum alloy door lock guard plate according to claim 1, wherein: the cross section of the male die core (3) is T-shaped, and a first mounting sleeve (13) which is matched with the male die core (3) and fixedly connected to the movable die plate (2) is sleeved on the male die core (3).

3. The cold extrusion die for the aluminum alloy door lock guard plate according to claim 1 or 2, wherein: the female die core (5) is in a round table shape, and a second mounting sleeve (14) which is matched with the female die core (5) and fixedly connected to the static template (4) is sleeved on the female die core (5).

4. The aluminum alloy door lock guard plate cold extrusion die as claimed in claim 3, wherein: the upper surface of the static template (4) is provided with a positioning groove (41) matched with the female die core (5), and the lower end of the female die core (5) is arranged in the positioning groove (41).

5. The cold extrusion die for the aluminum alloy door lock guard plate according to claim 3 or 4, wherein: the movable template (2) is fixedly connected with a plurality of first limit posts (15), and the static template (4) is fixedly connected with a plurality of second limit posts (16) which are in one-to-one correspondence with the first limit posts (15).

6. The cold extrusion die for the aluminum alloy door lock guard plate according to claim 1, wherein: thimble (8) are the type of falling T, thimble board (9) are including thimble upper plate (91) and thimble hypoplastron (92), offered on thimble upper plate (91) lower surface with thimble (8) big head end matched spacing groove (911), thimble (8) pass thimble upper plate (91) make thimble (8) big head end keep in spacing groove (911), thimble hypoplastron (92) fixed connection shields spacing groove (911) on thimble upper plate (91) lower surface.

7. The cold extrusion die for the aluminum alloy door lock guard plate according to claim 1, wherein: the thimble plate (9) is fixedly connected with a sliding bearing (17) sleeved on the sliding rod (11).