CN212443057U - Cold-heading mould of injection molding head recess - Google Patents

Abstract

The utility model belongs to the technical field of the cold-heading mould technique and specifically relates to a cold-heading mould of injection molding head recess. The utility model provides a cold-heading mould of injection molding head recess, includes first station cold-heading mould, second station cold-heading mould, third station cold-heading mould, fourth station cold-heading mould, its characterized in that: first station cold-heading mould include first last mould and first lower mould, first last mould includes first last mould shell, first last mould cushion, first last mould towards stick, first mould alloy of going up that is equipped with in going up the mould shell, first last mould cushion upper end flushes with first last mould shell, first last mould cushion below is equipped with first mould alloy upper end, first last mould alloy lower extreme flushes with first last mould shell lower extreme, first last mould cushion upper end is equipped with first last mould towards stick upper end. Compared with the prior art, the process is stable, unnecessary procedures are reduced, raw materials are saved, and the groove at the head of the injection molding piece can be formed by one-time cold heading.

Description

Cold-heading mould of injection molding head recess

Technical Field

The utility model belongs to the technical field of the cold-heading mould technique and specifically relates to a cold-heading mould of injection molding head recess.

Background

At present, the mode of firstly hot heading and then turning is mainly adopted for processing the groove at the head of the injection molding part, the process is unstable, a lot of waste materials can be generated, and the waste of raw materials is caused.

Therefore, it is necessary to design a cold heading die for the head groove of the injection molding part, which can save materials and can be formed by one-time cold heading.

Disclosure of Invention

The utility model discloses an overcome prior art not enough, provide one kind can save material simultaneously can once cold-heading fashioned injection molding head recess cold-heading mould.

For realizing above-mentioned purpose, design a cold-heading mould of injection molding head recess, including first station cold-heading mould, second station cold-heading mould, third station cold-heading mould, fourth station cold-heading mould, its characterized in that: first station cold-heading mould include first last mould and first lower mould, first last mould includes first last mould shell, first last mould cushion, first last mould dashes the stick, first last mould alloy, be equipped with first last mould cushion in the first last mould shell, first last mould cushion upper end flushes with first last mould shell, first last mould cushion below is equipped with first last mould alloy upper end, first last mould alloy lower extreme flushes with first last mould shell lower extreme, first last mould cushion upper end is equipped with first last mould towards stick upper end, first last mould dashes the stick lower extreme and runs through first last mould cushion, first last mould alloy respectively in proper order to the first last mould alloy lower extreme that goes up of butt.

The first lower die comprises a first lower die alloy, a first lower die shell and a first lower die core, the first lower die alloy is arranged in the first lower die shell, the upper end of the first lower die alloy is flush with the first lower die shell, the lower end of the first lower die alloy is located in the first lower die shell, the upper end of the first lower die alloy is provided with a first lower die core upper end, and the lower end of the first lower die core penetrates through the first lower die alloy and the first lower die shell and is located below the first lower die shell.

The second station cold heading die comprises a second upper die and a second lower die, the second upper die comprises a second upper die cushion block, a second upper die cushion cover, a second upper die three-pin core, a second upper die first three-pin cushion block, a second upper die second three-pin cushion block, a second upper die sleeve, a second upper die stamping rod, a second upper die shell and a second upper die alloy, the second upper die cushion block is arranged in the second upper die shell, the upper end of the second upper die cushion block is positioned at the upper part of the second upper die shell, the second upper die cushion cover is sleeved at the outer side of the second upper die cushion block, the upper end of the second upper die cushion cover is flush with the second upper die cushion block, the lower end of the second upper die cushion cover is abutted against the upper end of the second upper die first three-pin cushion block, the lower end of the second upper die first three-pin cushion block is abutted against the upper end of the second upper die third pin cushion block, the upper end of the second upper die alloy is arranged, the upper die is positioned at the upper end of the first upper die cushion block, the lower end of the first upper die cushion block is abutted to the upper end of the first upper die three-pin core, the lower end of the first upper die three-pin core sequentially penetrates through the first upper die three-pin cushion block, the second upper die second three-pin cushion block and is abutted to the lower end of the first upper die three-pin cushion block, the upper end of the second upper die three-pin cushion block is arranged at the upper end of the first upper die three-pin cushion block, the lower end of the second upper die punching rod sequentially penetrates through the first upper die three-pin cushion block and the second upper die alloy, the upper die is positioned below the second upper die alloy, a second upper die sleeve is sleeved outside the second upper die punching rod, the upper end of the second upper die sleeve is abutted to the lower end of the second upper die three-pin.

The second lower mould include second lower mould alloy, second lower mould shell and second lower mould core, be equipped with second lower mould alloy in the second lower mould shell, second lower mould alloy upper end flushes with second lower mould shell, second lower mould alloy lower extreme is located second lower mould shell, is located second lower mould alloy upper end and is equipped with second lower mould core upper end, second lower mould core lower extreme runs through second lower mould alloy, second lower mould shell to be located second lower mould shell below.

The third station cold-heading mould include mould and third lower mould on the third, go up the mould and include mould cushion, mould shell and the mould towards the stick on the third, it is equipped with mould cushion upper end and mould shell on the third and level on the third in the mould shell on the third, mould cushion lower extreme is located mould shell on the third, mould cushion upper end is equipped with mould towards stick upper end on the third, mould towards stick lower extreme runs through mould cushion, mould shell on the third respectively in proper order on the third to be located mould shell below on the third.

The third lower die comprises a third lower die first alloy, a third lower die shell, a third lower die second alloy, a third lower die middle sleeve, a third lower die nut and a third lower die core, the third lower die shell is internally provided with the third lower die first alloy, the upper end of the third lower die first alloy is flush with the third lower die shell, the lower end of the third lower die first alloy is abutted against the upper end of the third lower die middle sleeve, the lower end of the third lower die middle sleeve is connected with the third lower die shell through the third lower die nut, the third lower die second alloy is arranged in the third lower die middle sleeve, the upper end of the third lower die second alloy is abutted against the lower end of the third lower die first alloy, the lower end of the third lower die second alloy is arranged in the third lower die middle sleeve, the upper end of the third lower die core is arranged at the upper end of the third lower die first alloy, and the lower end of the third lower die second alloy sequentially and the third lower die middle sleeve respectively, and is positioned below the third lower die middle sleeve.

Fourth station cold-heading mould include mould and fourth lower mould on the fourth, go up the mould including the fourth mould cushion on the fourth, go up the mould spring on the fourth, go up the mould shell on the fourth, mould alloy and fourth mould core on the fourth, be equipped with the fourth mould cushion on the mould shell on the fourth, mould cushion upper end flushes with mould shell upper end on the fourth, mould cushion lower extreme butt mould alloy upper end on the fourth, mould alloy lower extreme runs through mould shell on the fourth and lies in mould shell below on the fourth, mould alloy upper end is equipped with mould core upper end on the fourth, mould core lower extreme flushes with mould alloy lower extreme on the fourth, it is equipped with the mould spring on the fourth to lie in between mould cushion lower part outside on the fourth and the mould shell on the fourth.

The fourth lower mould include fourth lower mould alloy, fourth lower mould shell and fourth lower mould core, be equipped with fourth lower mould alloy in the fourth lower mould shell, fourth lower mould alloy upper end flushes with fourth lower mould shell, fourth lower mould alloy lower extreme is located fourth lower mould shell, is located fourth lower mould alloy upper end and is equipped with fourth lower mould core upper end, fourth lower mould core lower extreme runs through fourth lower mould alloy, fourth lower mould shell to be located fourth lower mould shell below.

Compared with the prior art, the utility model, technology is stable, has reduced the unnecessary process, has saved raw and other materials, makes injection molding head recess cold-heading shaping once.

Drawings

Fig. 1 is a schematic structural view of a first upper die of the present invention.

Fig. 2 is a schematic structural view of the first lower die of the present invention.

Fig. 3 is a schematic structural view of the second upper die of the present invention.

Fig. 4 is a schematic structural view of a second lower die of the present invention.

Fig. 5 is a schematic structural view of a third upper die of the present invention.

Fig. 6 is a schematic structural view of a third lower die of the present invention.

Fig. 7 is a schematic structural view of the fourth upper die of the present invention.

Fig. 8 is a schematic structural view of a fourth lower die according to the present invention.

Detailed Description

The invention will be further described with reference to the accompanying drawings.

As shown in figures 1 to 8, the first station cold heading die comprises a first upper die and a first lower die, the first upper die comprises a first upper die shell 1-2, a first upper die cushion block 1-1, a first upper die stamping rod 1-3 and a first upper die alloy 1-4, the first upper die cushion block 1-1 is arranged in the first upper die shell 1-2, the upper end of the first upper die cushion block 1-1 is flush with the first upper die shell 1-2, the upper end of the first upper die cushion block 1-1 is provided with the upper end of the first upper die alloy 1-4 below, the lower end of the first upper die alloy 1-4 is flush with the lower end of the first upper die shell 1-2, the upper end of the first upper die cushion block 1-1 is provided with the upper end of the first upper die stamping rod 1-3, the lower end of the first upper die stamping rod 1-3 sequentially and respectively penetrates through the first upper die cushion block 1-1 and the first, and abuts the lower end of the first upper die alloy 1-4.

The first lower die comprises a first lower die alloy 1-5, a first lower die shell 1-6 and a first lower die core 1-7, wherein the first lower die alloy 1-5 is arranged in the first lower die shell 1-6, the upper end of the first lower die alloy 1-5 is flush with the first lower die shell 1-6, the lower end of the first lower die alloy 1-5 is positioned in the first lower die shell 1-6, the upper end of the first lower die alloy 1-5 is provided with the upper end of the first lower die core 1-7, and the lower end of the first lower die core 1-7 penetrates through the first lower die alloy 1-5 and the first lower die shell 1-6 and is positioned below the first lower die shell 1-6.

The second station cold heading die comprises a second upper die and a second lower die, the second upper die comprises a second upper die cushion block 2-1, a second upper die cushion cover 2-2, a second upper die three-pin core 2-3, a second upper die first three-pin cushion block 2-4, a second upper die second three-pin cushion block 2-5, a second upper die sleeve 2-6, a second upper die stamping rod 2-7, a second upper die shell 2-8 and a second upper die alloy 2-9, a second upper die cushion block 2-1 is arranged in the second upper die shell 2-8, the upper end of the second upper die cushion block 2-1 is positioned at the upper part of the second upper die shell 2-8, the second upper die cushion cover 2-2 is sleeved outside the second upper die cushion block 2-1, the upper end of the second upper die cushion cover 2-2 is flush with the second upper die cushion block 2-1, the lower end of the second upper die cushion cover 2-2 is abutted against the upper end of the second upper die cushion block 2-, the lower end of a first three-pin cushion block 2-4 of a second upper die is abutted against the upper end of a second three-pin cushion block 2-5 of the second upper die, a second upper die alloy 2-9 is arranged below the second three-pin cushion block 2-5 of the second upper die, the lower end of the second upper die alloy 2-9 is flush with the lower end of a second upper die shell 2-8, the lower end of the second upper die cushion block 2-1 is abutted against the upper end of a third upper die core 2-3, the lower end of the third upper die core 2-3 sequentially and respectively penetrates through the first three-pin cushion block 2-4 of the second upper die, the second three-pin cushion block 2-5 of the second upper die and is abutted against the lower end of the second three-pin cushion block 2-5 of the second upper die, the upper die punch rod 2-7 is arranged at the upper end of the second three-pin cushion block 2-5 of the second upper die, and the lower end of the second upper die punch, And the second upper die alloy 2-9 is positioned below the second upper die alloy 2-9, a second upper die sleeve 2-6 is sleeved outside the second upper die stamping rod, the upper end of the second upper die sleeve 2-6 is abutted against the lower end of a second three-pin cushion block 2-5 of the second upper die, and the lower end of the second upper die sleeve 2-6 penetrates through the second upper die alloy 2-9 and is positioned in the second upper die alloy 2-9.

The second lower die comprises a second lower die alloy 2-10, a second lower die shell 2-11 and a second lower die core 2-12, the second lower die alloy 2-10 is arranged in the second lower die shell 2-11, the upper end of the second lower die alloy 2-10 is flush with the second lower die shell 2-11, the lower end of the second lower die alloy 2-10 is positioned in the second lower die shell 2-11, the upper end of the second lower die alloy 2-10 is provided with the upper end of the second lower die core 2-12, and the lower end of the second lower die core 2-12 penetrates through the second lower die alloy 2-10 and the second lower die shell 2-11 and is positioned below the second lower die shell 2-11.

The third station cold heading die comprises a third upper die and a third lower die, the third upper die comprises a third upper die cushion block 3-1, a third upper die shell 3-2 and a third upper die stamping rod 3-3, the third upper die cushion block 3-1 is arranged in the third upper die shell 3-2, the upper end of the third upper die cushion block 3-1 is flush with the third upper die shell 3-2, the lower end of the third upper die cushion block 3-1 is positioned in the third upper die shell 3-2, the upper end of the third upper die cushion block 3-1 is provided with the upper end of the third upper die stamping rod 3-3, and the lower end of the third upper die stamping rod 3-3 sequentially penetrates through the third upper die cushion block 3-1 and the third upper die shell 3-2 respectively and is positioned below the third upper die shell 3-2.

The third lower die comprises a third lower die first alloy 3-4, a third lower die shell 3-5, a third lower die second alloy 3-6, a third lower die middle sleeve 3-7, a third lower die nut 3-8 and a third lower die core 3-9, the third lower die first alloy 3-4 is arranged in the third lower die shell 3-5, the upper end of the third lower die first alloy 3-4 is flush with the third lower die shell 3-5, the lower end of the third lower die first alloy 3-4 is abutted against the upper end of the third lower die middle sleeve 3-7, the lower end of the third lower die middle sleeve 3-7 is connected with the third lower die shell 3-5 through the third lower die nut 3-8, the third lower die second alloy 3-6 is arranged in the third lower die middle sleeve, the upper end of the third lower die second alloy 3-6 is abutted against the lower end of the third lower die first alloy 3-4, the lower end of the third lower die second alloy 3-6 is positioned in the third lower die middle sleeve 3-7, the upper end of the third lower die core 3-9 is positioned at the upper end of the third lower die first alloy 3-4, the lower end of the third lower die core 3-9 sequentially penetrates through the third lower die first alloy 3-4, the third lower die second alloy 3-6 and the third lower die middle sleeve 3-7 respectively, and is positioned below the third lower die middle sleeve 3-7.

The fourth station cold heading die comprises a fourth upper die and a fourth lower die, the fourth upper die comprises a fourth upper die cushion block 4-1, a fourth upper die spring 4-2, a fourth upper die shell 4-3, a fourth upper die alloy 4-4 and a fourth upper die core 4-5, the fourth upper die cushion block 4-1 is arranged in the fourth upper die shell 4-3, the upper end of the fourth upper die cushion block 4-1 is flush with the upper end of the fourth upper die shell 4-3, the lower end of the fourth upper die cushion block 4-1 is abutted against the upper end of the fourth upper die alloy 4-4, the lower end of the fourth upper die alloy 4-4 penetrates through the fourth upper die shell 4-3 and is positioned below the fourth upper die shell 4-3, the upper end of the fourth upper die alloy 4-4 is provided with the upper end of the fourth upper die core 4-5, and the lower end of the fourth upper die core 4-5 is flush with the lower end of the fourth upper, a fourth upper die spring 4-2 is arranged between the outer side of the lower part of the fourth upper die cushion block 4-1 and the fourth upper die shell 4-3.

The fourth lower die comprises a fourth lower die alloy 4-6, a fourth lower die shell 4-7 and a fourth lower die core 4-8, the fourth lower die alloy 4-6 is arranged in the fourth lower die shell 4-7, the upper end of the fourth lower die alloy 4-6 is flush with the fourth lower die shell 4-7, the lower end of the fourth lower die alloy 4-6 is positioned in the fourth lower die shell 4-7, the upper end of the fourth lower die alloy 4-6 is provided with the upper end of the fourth lower die core 4-8, and the lower end of the fourth lower die core 4-8 penetrates through the fourth lower die alloy 4-6 and the fourth lower die shell 4-7 and is positioned below the fourth lower die shell 4-7.

During operation, the raw materials are subjected to cold heading through the first station cold heading die, the second station cold heading die, the third station cold heading die and the fourth station cold heading die in sequence, each die can be produced independently, and subsequent complicated processes are omitted, so that the cost of raw materials is greatly reduced, the cost is effectively controlled, the labor intensity of personnel is reduced, and the production efficiency is greatly improved.

Claims (8)

1. The utility model provides a cold-heading mould of injection molding head recess, includes first station cold-heading mould, second station cold-heading mould, third station cold-heading mould, fourth station cold-heading mould, its characterized in that: the first station cold heading die comprises a first upper die and a first lower die, the first upper die comprises a first upper die shell (1-2), a first upper die cushion block (1-1), a first upper die stamping rod (1-3) and a first upper die alloy (1-4), the first upper die cushion block (1-1) is arranged in the first upper die shell (1-2), the upper end of the first upper die cushion block (1-1) is flush with the first upper die shell (1-2), the upper end of the first upper die cushion block (1-1) is provided with the upper end of the first upper die alloy (1-4) below, the lower end of the first upper die alloy (1-4) is flush with the lower end of the first upper die shell (1-2), the upper end of the first upper die cushion block (1-1) is provided with the upper end of the first upper die stamping rod (1-3), and the lower end of the first upper die rod (1-3) sequentially and respectively penetrates through the first upper die cushion block (1-1, A first upper die alloy (1-4) and abutting against the lower end of the first upper die alloy (1-4).

2. The cold-heading die for the head groove of the injection molding part, according to claim 1, is characterized in that: the first lower die comprises a first lower die alloy (1-5), a first lower die shell (1-6) and a first lower die core (1-7), wherein the first lower die alloy (1-5) is arranged in the first lower die shell (1-6), the upper end of the first lower die alloy (1-5) is flush with the first lower die shell (1-6), the lower end of the first lower die alloy (1-5) is positioned in the first lower die shell (1-6), the upper end of the first lower die alloy (1-5) is provided with the upper end of the first lower die core (1-7), and the lower end of the first lower die core (1-7) penetrates through the first lower die alloy (1-5) and the first lower die shell (1-6) and is positioned below the first lower die shell (1-6).

3. The cold-heading die for the head groove of the injection molding part, according to claim 1, is characterized in that: the second station cold heading die comprises a second upper die and a second lower die, the second upper die comprises a second upper die cushion block (2-1), a second upper die cushion cover (2-2), a second upper die three-pin core (2-3), a second upper die first three-pin cushion block (2-4), a second upper die second three-pin cushion block (2-5), a second upper die sleeve (2-6), a second upper die punch rod (2-7), a second upper die shell (2-8) and a second upper die alloy (2-9), a second upper die cushion block (2-1) is arranged in the second upper die shell (2-8), the upper end of the second upper die cushion block (2-1) is positioned at the upper part of the second upper die shell (2-8), the second upper die cushion cover (2-2) is sleeved outside the second upper die cushion block (2-1), the upper end of a second upper die cushion cover (2-2) is flush with a second upper die cushion block (2-1), the lower end of the second upper die cushion cover (2-2) is abutted against the upper end of a first three-needle cushion block (2-4) of a second upper die, the lower end of the first three-needle cushion block (2-4) of the second upper die is abutted against the upper end of a second three-needle cushion block (2-5) of the second upper die, a second upper die alloy (2-9) is arranged below the second three-needle cushion block (2-5) of the second upper die, the lower end of the second upper die alloy (2-9) is flush with the lower end of a second upper die shell (2-8), the lower end of the second upper die cushion block (2-1) is abutted against the upper end of a third needle core (2-3) of the second upper die, and the lower end of the third needle core (2-3) of the second upper die, A second upper die second three-pin cushion block (2-5) is abutted against the lower end of the second upper die second three-pin cushion block (2-5), the upper end of a second upper die stamping rod (2-7) is arranged at the upper end of the second upper die second three-pin cushion block (2-5), the lower end of the second upper die stamping rod (2-7) sequentially and respectively penetrates through the second upper die second three-pin cushion block (2-5) and a second upper die alloy (2-9), and the lower end of the second upper die sleeve (2-6) penetrates through the second upper die alloy (2-9) and is positioned in the second upper die alloy (2-9).

4. The cold-heading die for the head groove of the injection molding part as claimed in claim 3, wherein: the second lower die comprises a second lower die alloy (2-10), a second lower die shell (2-11) and a second lower die core (2-12), the second lower die alloy (2-10) is arranged in the second lower die shell (2-11), the upper end of the second lower die alloy (2-10) is flush with the second lower die shell (2-11), the lower end of the second lower die alloy (2-10) is located in the second lower die shell (2-11), the upper end of the second lower die alloy (2-10) is provided with the upper end of the second lower die core (2-12), and the lower end of the second lower die core (2-12) penetrates through the second lower die alloy (2-10) and the second lower die shell (2-11) and is located below the second lower die shell (2-11).

5. The cold-heading die for the head groove of the injection molding part, according to claim 1, is characterized in that: the third station cold heading die comprises a third upper die and a third lower die, the third upper die comprises a third upper die cushion block (3-1), a third upper die shell (3-2) and a third upper die stamping rod (3-3), the third upper die cushion block (3-1) is arranged in the third upper die shell (3-2), the upper end of the third upper die cushion block (3-1) is flush with the third upper die shell (3-2), the lower end of the third upper die cushion block (3-1) is positioned in the third upper die shell (3-2), the upper end of the third upper die cushion block (3-1) is provided with the upper end of the third upper die stamping rod (3-3), the lower end of the third upper die stamping rod (3-3) sequentially and respectively penetrates through the third upper die cushion block (3-1), a third upper mold housing (3-2) and is located below the third upper mold housing (3-2).

6. The cold-heading die for the head groove of the injection molding part according to claim 5, wherein: the third lower die comprises a third lower die first alloy (3-4), a third lower die shell (3-5), a third lower die second alloy (3-6), a third lower die middle sleeve (3-7), a third lower die nut (3-8) and a third lower die core (3-9), the third lower die first alloy (3-4) is arranged in the third lower die shell (3-5), the upper end of the third lower die first alloy (3-4) is flush with the third lower die shell (3-5), the lower end of the third lower die first alloy (3-4) is abutted against the upper end of the third lower die middle sleeve (3-7), the lower end of the third lower die middle sleeve (3-7) is connected with the third lower die shell (3-5) through the third lower die nut (3-8), the third lower die second alloy (3-6) is arranged in the third lower die middle sleeve, the upper end of the second alloy (3-6) of the third lower die is abutted against the lower end of the first alloy (3-4) of the third lower die, the lower end of the second alloy (3-6) of the third lower die is positioned in the middle sleeve (3-7) of the third lower die, the upper end of the first alloy (3-4) of the third lower die is provided with the upper end of a core (3-9) of the third lower die, and the lower end of the core (3-9) of the third lower die sequentially penetrates through the first alloy (3-4) of the third lower die, the second alloy (3-6) of the third lower die and the middle sleeve (3-7) of the third lower die respectively and is positioned below the middle sleeve (3-7) of the third lower die.

7. The cold-heading die for the head groove of the injection molding part, according to claim 1, is characterized in that: the fourth station cold heading die comprises a fourth upper die and a fourth lower die, the fourth upper die comprises a fourth upper die cushion block (4-1), a fourth upper die spring (4-2), a fourth upper die shell (4-3), a fourth upper die alloy (4-4) and a fourth upper die core (4-5), the fourth upper die cushion block (4-1) is arranged in the fourth upper die shell (4-3), the upper end of the fourth upper die cushion block (4-1) is flush with the upper end of the fourth upper die shell (4-3), the lower end of the fourth upper die cushion block (4-1) is abutted against the upper end of the fourth upper die alloy (4-4), the lower end of the fourth upper die alloy (4-4) penetrates through the fourth upper die shell (4-3) and is positioned below the fourth upper die shell (4-3), the upper end of the fourth upper die alloy (4-4) is provided with the upper end of the fourth upper die core (4-5), the lower end of the fourth upper die core (4-5) is flush with the lower end of the fourth upper die alloy (4-4), and a fourth upper die spring (4-2) is arranged between the outer side of the lower part of the fourth upper die cushion block (4-1) and the fourth upper die shell (4-3).

8. The cold-heading die for the head groove of the injection molding part according to claim 7, wherein: the fourth lower die comprises a fourth lower die alloy (4-6), a fourth lower die shell (4-7) and a fourth lower die core (4-8), the fourth lower die alloy (4-6) is arranged in the fourth lower die shell (4-7), the upper end of the fourth lower die alloy (4-6) is flush with the fourth lower die shell (4-7), the lower end of the fourth lower die alloy (4-6) is located in the fourth lower die shell (4-7), the upper end of the fourth lower die alloy (4-6) is provided with the upper end of the fourth lower die core (4-8), and the lower end of the fourth lower die core (4-8) penetrates through the fourth lower die alloy (4-6) and the fourth lower die shell (4-7) and is located below the fourth lower die shell (4-7).

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