Sleeve-in-sleeve for large extrusion profile rotating machine table

Abstract

A sleeve-in-sleeve for a large extruded profile rotating machine table belongs to the technical field of machining and is characterized in that a positioning pin is arranged on a rotating machine table die, a limiting groove is formed in the corresponding position of the sleeve-in-sleeve to limit the rotating machine table die to rotate in the sleeve-in-sleeve, and the rear end face of the rotating machine table die protrudes out of the rear end face of the sleeve-in-sleeve by 1-10 mm; the universal pad is fixed with the sleeve-in-sleeve and the rotating machine table mold through bolts, and is arranged in the large machine table mold sleeve; wherein a positioning pin is arranged at the corresponding position of the universal pad, a limiting groove is formed in the large machine table die sleeve, rotation of the sleeve-in-sleeve combination in the large die sleeve is limited, and the front end face of the sleeve-in-sleeve combination, namely the flush section of the rotary machine table die and the sleeve-in-sleeve, protrudes out of the front end face of the large die sleeve by 5-50 mm. And the rear end face of the universal pad protrudes out of the rear end face of the large machine table die sleeve by 5-50mm. The mold has the beneficial effects that the mold is transferred from one extruder to another larger extruder for production, the capacity of the larger extruder can be effectively released, and the outturn percentage is greatly improved due to the fact that the larger extruder is adjusted for extrusion, so that the production cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of machining and relates to an improvement of a large extrusion profile die. Background Art

[0002] For some aluminum profiles for rail vehicles with a large single weight, such as those produced on a 10000t extrusion machine, the material yield is very low, only a little over 30%. With the growing market demand for large-section aluminum profiles and the development of science and technology, larger machines have emerged, such as 15000t and 16000t extrusion machines. Major ambitious manufacturers have successively established 15000t and 16000t extrusion production lines. If these large single-weight profiles are placed on 15000t and 16000t extrusion machines for production, the material yield can be greatly improved. However, due to the correspondingly larger diameter and thickness of the die, the cost of re-opening the die on 15000t and 16000t large machines is greatly increased. During the aluminum profile extrusion production process, the production capacity of a single extrusion machine is often insufficient due to the increased customer supply demand. For this situation, a new die can be opened on other machines to solve the production capacity problem, but this solution takes a long time and increases costs. If transferred to a small machine, most need to make a pre-expansion die. Although the production can be improved, the pre-expansion die increases the length of the profile process waste and reduces the material yield of the profile. Summary of the Invention

[0003] The purpose of the utility model is to provide a nested sleeve for a large extrusion profile transfer machine, which solves the problem of applying a set of extrusion dies to various types of extrusion machines.

[0004] The technical solution of the utility model is as follows: a positioning pin is provided on the transfer machine die, and a limiting groove is provided at the corresponding position on the nested sleeve. The cooperation between the die and the nested sleeve restricts the rotation of the transfer machine die in the nested sleeve. The front end face of the nested sleeve is flush with the front end face of the transfer machine die, and the rear end face of the transfer machine die protrudes from the rear end face of the nested sleeve by h1, and the protruding distance range is 1 - 10mm; the universal pad is fixed to the nested sleeve and the transfer machine die therein through bolts to form a whole and is installed in the large machine die sleeve; a positioning pin is provided at the corresponding position of the universal pad, and a limiting groove is provided on the large machine die sleeve. The matching between the universal pad and the large machine die sleeve restricts the rotation of the nested sleeve combination in the large die sleeve. The front end face of the nested sleeve combination, that is, the cross-section where the front end face of the transfer machine die is flush with the nested sleeve, protrudes from the front end face of the large die sleeve by h2, and the protruding distance range is 5 - 50mm. The rear end face of the universal pad protrudes from the rear end face of the large machine die sleeve by h3, and the protruding distance range is 5 - 50mm.

[0005] The beneficial effect of the utility model is as follows: it realizes the transfer of the die from one extrusion machine to another larger extrusion machine for production, can effectively release the production capacity of the large extrusion machine, and speed up the delivery rhythm of products; when the extrusion is adjusted to a larger machine, the overall material yield of the profile is greatly improved, thus reducing the production cost. Brief Description of the Drawings

[0006] Figure 1 is a side sectional view of the present utility model installed in the large machine table die sleeve;

[0007] Figure 2 is a side sectional view of the present utility model;

[0008] Figure 3 is a side sectional view of the general gasket. Specific embodiments

[0009] The present utility model will be further described below in conjunction with the accompanying drawings:

[0010] As shown in the figure, 1 is the inner sleeve; 2 is the transfer machine table die; 3 is the general gasket; 4 is the large machine table die sleeve; 11 is the front end face of the inner sleeve; 12 is the rear end face of the inner sleeve; 13 is the limiting groove of the inner sleeve; 21 is the front end face of the transfer machine table die; 22 is the rear end face of the transfer machine table die; 23 is the positioning pin of the transfer machine table die; 31 is the front end face of the general gasket; 32 is the rear end face of the general gasket; 33 is the positioning pin of the general gasket; 41 is the front end face of the large machine table die sleeve; 42 is the rear end face of the large machine table die sleeve; 43 is the limiting groove of the large machine table die sleeve.

[0011] In Figures 1-3 , the present utility model places the transfer machine table die 2 in the inner sleeve 1, and relies on the positioning of the limiting groove 13 of the inner sleeve and the positioning pin 23 of the transfer machine table die to prevent the transfer machine table die 2 from rotating in the inner sleeve 1. Among them, the front end face 11 of the inner sleeve is flush with the rear end face 21 of the transfer machine table die; the rear end face 22 of the transfer machine table die protrudes from the rear end face 12 of the inner sleeve by a protruding distance range of 1 - 10 mm, ensuring that only the die is stressed during the extrusion process. Use bolts to connect the inner sleeve 1 equipped with the transfer machine table die 2 with the general gasket 3, ensuring that the rear end face 22 of the transfer machine table die is tightly pressed against the front end face 31 of the general gasket, forming an inner sleeve combination. Place the inner sleeve combination in the large machine table die sleeve 4, and rely on the positioning of the positioning pin 33 of the general gasket and the limiting groove 43 of the large machine table die sleeve to prevent the inner sleeve combination from rotating in the large machine table die sleeve 4. Among them, the front end face 11 of the inner sleeve, that is, the front end face of the inner sleeve combination, protrudes from the front end face 41 of the large machine table die sleeve by a protruding distance range of 5 - 50 mm, and the rear end face of the inner sleeve combination, that is, the rear end face 32 of the general gasket, protrudes from the rear end face 43 of the large machine table die sleeve by a protruding distance range of 5 - 50 mm.

Claims

1. A sleeve-in-sleeve for a large extruded profile turntable, characterized by: There is a locating pin on the turntable mold, and a limiting groove is provided at the corresponding position on the sleeve in the sleeve. The mold and the sleeve in the sleeve cooperate to limit the rotation of the turntable mold in the sleeve in the sleeve. The sleeve in the sleeve is flush with the front end face of the turntable mold, and the rear end face of the turntable mold protrudes from the rear end face of the sleeve in the sleeve by a distance range of 1-10mm; the universal gasket is fixed to the sleeve in the sleeve and its turntable mold by bolts to form a whole, which is installed in the large machine mold sleeve; the universal gasket is provided with a locating pin at the corresponding position, and the limiting groove is provided on the large machine mold sleeve. The universal gasket matches the large machine mold sleeve to limit the rotation of the sleeve in the sleeve combination in the large mold sleeve, wherein the front end face of the sleeve in the sleeve combination, that is, the turntable mold and the sleeve in the sleeve are flush with the section protruding from the front end face of the large mold sleeve by a distance range of 5-50mm, and the rear end face of the universal gasket protrudes from the rear end face of the large machine mold sleeve by a distance range of 5-50mm.

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