A type of externally mounted die for stretching and forming

Abstract

This invention discloses a compression forming mold with an externally mounted die holder, comprising an inlet nozzle, a front cone, a rear cone, and a forming body connected end-to-end to form a mold housing, and a die needle disposed within the mold housing cavity, along with a set of locking blocks for connecting the front cone and the rear cone. The lower end face of each locking block has a transverse clamping groove, the two side walls of which are inwardly converging slopes. The outer ring of the die needle holder is provided with a connecting ring. The rear end of the front cone and the front end of the rear cone are respectively connected to the two ends of the connecting ring of the die needle holder via a stop structure. Each locking block is fixed to a threaded hole on the side wall of the connecting ring of the die needle by screws, and the front cone and rear cone are axially clamped by the slopes of the two side walls of the clamping groove at their lower ends. This compression forming mold is compatible with both manual and mechanical demolding.

Description

Technical Field

[0001] This invention relates to a pressing and stretching mold with an external mold pin holder, belonging to the field of explosives preparation technology. Background Technology

[0002] Gunpowder forming molds generally use clamp-type or bolt-type molds. However, since the mold pins are all built-in, after disassembling the front and rear conical connecting parts of the mold, only special tools can be used to pull out the mold pins and clean the material inside the mold. The process is complicated and highly dangerous. Summary of the Invention

[0003] The purpose of this invention is to solve the problems of traditional stretch forming molds, such as difficulty in mold disassembly and high risk of cleaning up the material inside the mold, and to provide a stretch forming mold with an external mold pin holder.

[0004] The objective of this invention is achieved through the following technical solution:

[0005] The present invention provides a compression forming mold with an external mold needle holder, comprising a drug inlet, a front cone, a rear cone, and a forming body that are connected end to end to form a mold shell, and a mold needle disposed in the inner cavity of the mold shell;

[0006] It also includes a set of locking blocks for connecting the front cone and the rear cone;

[0007] The lower end face of the card block has a horizontal pressing groove, the two sides of the pressing groove are inwardly converging slopes, and the bottom of the pressing groove of the card block has a screw through hole facing upward.

[0008] The outer ring of the needle holder of the mold needle is provided with a connecting ring, the side wall of the connecting ring is provided with circumferentially distributed threaded holes, and the front and rear end faces of the connecting ring are respectively provided with mating stop structures that match the rear end face of the front cone and the front end face of the rear cone.

[0009] The outer rear end of the front cone and the outer rear end of the rear cone are respectively provided with annular pressing parts. The front end face of the annular pressing part of the front cone and the rear end face of the annular pressing part of the rear cone are respectively processed into inclined surfaces that match the groove walls on both sides of the pressing groove of the card block.

[0010] The rear end of the front cone and the front end of the rear cone are respectively connected to the two ends of the outer ring connecting ring of the needle holder through a stop structure; each of the locking blocks is fixed to the threaded hole on the side wall of the connecting ring of the needle by screws, and each of the locking blocks axially clamps the front cone and the rear cone through the inclined surfaces of the two sides of the groove wall of the lower end pressing groove.

[0011] Heating jackets are fitted onto the outer sides of the front cone, the rear cone, and the molded body.

[0012] Working principle

[0013] After the mold presses the material, the front cone and the rear cone are axially separated by removing the various clips. Since the connecting ring of the outer ring of the mold needle holder is located between the mating surfaces of the front cone and the rear cone, the disassembly of the mold needle is easier.

[0014] Beneficial effects

[0015] The extrusion molding die of the present invention has a simple structure, is easy to load and unload, is compatible with manual or mechanical demolding, has reliable molding and safe disassembly, and provides technical support for the construction of continuous automated production lines. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the stretching molding die of the present invention;

[0017] In the diagram: 1-Inlet nozzle, 2-Front cone, 3-Clamping block, 4-Die needle, 5-Rear cone, 6-Molded body. Detailed Implementation

[0018] The present invention will now be further described in conjunction with the accompanying drawings and embodiments.

[0019] Example

[0020] like Figure 1 As shown, a pressure stretching mold with an external mold needle holder according to the present invention includes a drug inlet 1, a front cone 2, a rear cone 5 and a forming body 6 connected end to end to form a mold shell, a mold needle 4 disposed in the inner cavity of the mold shell, and a set of locking blocks 3 for connecting the front cone 2 and the rear cone 5.

[0021] The lower end face of the card block 3 has a horizontal pressing groove, the two sides of the pressing groove are inwardly converging slopes, and the bottom of the pressing groove of the card block 3 has a screw through hole facing upward.

[0022] The outer ring of the needle holder of the needle 4 is provided with a connecting ring, the side wall of the connecting ring is provided with circumferentially distributed threaded holes, and the front and rear end faces of the connecting ring are respectively provided with mating stop structures that match the rear end face of the front cone 2 and the front end face of the rear cone 5.

[0023] The outer rear end edge of the front cone 2 and the outer rear end edge of the rear cone 5 are respectively provided with annular pressing parts. The front end face of the annular pressing part of the front cone 2 and the rear end face of the annular pressing part of the rear cone 5 are respectively processed into inclined surfaces that match the groove walls on both sides of the pressing groove of the card block 3.

[0024] The rear end of the front cone 2 and the front end of the rear cone 5 are respectively connected to the two ends of the outer ring connecting ring of the needle holder of the mold needle 4 through a stop structure; each of the locking blocks 3 is fixed to the threaded hole of the connecting ring side wall of the mold needle 4 by screws, and each of the locking blocks 3 axially clamps the front cone 2 and the rear cone 5 through the inclined surfaces of the two sides of the groove wall of the lower end pressing groove.

[0025] Heating jackets are fitted onto the outer sides of the front cone 2, the rear cone 5, and the molded body 6.

[0026] After the mold presses the material, the front cone 2 and the rear cone 5 are axially separated by removing the various clips 3. Since the connecting ring of the outer ring of the mold needle 4 is located between the mating surfaces of the front cone 2 and the rear cone 5, the disassembly of the mold needle 4 is easier.

Claims

1. A compression forming mold with an externally mounted mold needle holder, comprising a drug inlet, a front cone, a rear cone, and a forming body connected end to end to form a mold shell, and a mold needle disposed in the inner cavity of the mold shell; Its characteristics are: It also includes a set of locking blocks for connecting the front cone and the rear cone; The lower end face of the card block has a horizontal pressing groove, the two sides of the pressing groove are inwardly converging slopes, and the bottom of the pressing groove of the card block has a screw through hole facing upward. The outer ring of the needle holder of the mold needle is provided with a connecting ring, the side wall of the connecting ring is provided with circumferentially distributed threaded holes, and the front and rear end faces of the connecting ring are respectively provided with mating stop structures that match the rear end face of the front cone and the front end face of the rear cone. The outer rear end of the front cone and the outer rear end of the rear cone are respectively provided with annular pressing parts. The front end face of the annular pressing part of the front cone and the rear end face of the annular pressing part of the rear cone are respectively processed into inclined surfaces that match the groove walls on both sides of the pressing groove of the card block. The rear end of the front cone and the front end of the rear cone are respectively connected to the two ends of the outer ring connecting ring of the needle holder through a stop structure; each locking block is fixed to the threaded hole of the connecting ring side wall of the needle by screws, and each locking block axially clamps the front cone and the rear cone through the inclined surfaces of the two sides of the groove wall of the lower end pressing groove.

2. The externally mounted die-forming mold as described in claim 1, characterized in that: Heating jackets are fitted onto the outer sides of the front cone, the rear cone, and the molded body.

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