CN217098846U

CN217098846U - Reducing screw rod thread sleeve assembly

Info

Publication number: CN217098846U
Application number: CN202220615525.6U
Authority: CN
Inventors: 林波; 余晓斌
Original assignee: Ruian Jubang Autoparts Co ltd
Current assignee: Ruian Jubang Autoparts Co ltd
Priority date: 2022-03-21
Filing date: 2022-03-21
Publication date: 2022-08-02
Anticipated expiration: 2032-03-21

Abstract

The utility model discloses a reducing screw rod swivel nut subassembly, including reducing swivel nut body, end footpath steady area and end footpath increase progressively the district, the feed inlet has been seted up at the top of reducing swivel nut body, the inner chamber of reducing swivel nut body is equipped with the reducing screw rod body, the surface coating of reducing screw rod body has the strengthening layer. The utility model discloses an alloy carburization steel layer, alumina ceramic layer and graphite ceramic coating's setting, reach wear-resisting purpose, avoid the phenomenon that reducing screw body appears wearing and tearing at the in-process that uses, the life of reducing screw body has been improved greatly, through the carborundum ceramic layer, the setting on tungsten carbide metallic coating and alloy ultrahigh strength steel layer, reach the purpose of strengthening the reducing screw body, the practicality of reducing screw body is greatly improved, it does not possess wear-resisting function to have solved current reducing screw, cause the damage to appear on the surface of reducing screw easily at the in-process that uses, greatly reduced reducing screw life's problem.

Description

Reducing screw rod thread sleeve assembly

Technical Field

The utility model relates to a plastic extruder technical field specifically is reducing screw rod swivel nut subassembly.

Background

In the plastic extrusion molding equipment, a plastic extruder is generally called a main machine, and a subsequent equipment matched with the plastic extruder is called an auxiliary machine, and after the development of the plastic extruder for more than 100 years, multiple machine types such as double screws, multiple screws and even no screws are derived from the original single screw. The plastic extruder (host) can be matched with various plastic forming auxiliary machines such as pipes, films, rods, monofilaments, flat wires, packing belts, extruding nets, plates (sheets), profiles, pelleting, cable coating and the like to form various plastic extrusion forming production lines for producing various plastic products, so that the plastic extrusion forming machine is one of widely applied machines in the plastic processing industry no matter now or in the future, the plastic extruder is required to be matched with a reducing screw sleeve component for use in the using process, the existing reducing screw does not have a wear-resisting function, the surface of the reducing screw is easily damaged in the using process, and the service life of the reducing screw is greatly shortened.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a reducing screw rod swivel nut subassembly possesses wear-resisting advantage, has solved current reducing screw rod and has not possessed wear-resisting function, causes the surface of reducing screw rod to appear damaging easily at the in-process that uses, greatly reduced reducing screw rod life's problem.

In order to achieve the above purpose, the utility model provides a following technical scheme: the reducing screw thread insert assembly comprises a reducing screw thread insert body, a bottom diameter stable area and a bottom diameter increasing area, wherein a feed inlet is formed in the top of the reducing screw thread insert body, the inner cavity of the reducing screw thread insert body is provided with a reducing screw thread body, the surface of the reducing screw thread body is wrapped with a reinforcing layer, and the surface of the reinforcing layer is wrapped with a wear-resistant layer.

Preferably, the strengthening layer comprises a silicon carbide ceramic layer, a tungsten carbide metal coating and an alloy ultrahigh-strength steel layer, the thicknesses of the silicon carbide ceramic layer, the tungsten carbide metal coating and the alloy ultrahigh-strength steel layer are consistent, and the thicknesses are all 0.02mm-0.03 mm.

Preferably, the inner surface of the silicon carbide ceramic layer is wrapped on the outer surface of the tungsten carbide metal coating, and the inner surface of the tungsten carbide metal coating is wrapped on the outer surface of the alloy ultrahigh-strength steel layer.

Preferably, the wear-resistant layer comprises an alloy carburized steel layer, an aluminum oxide ceramic layer and a graphite ceramic coating, and the alloy carburized steel layer, the aluminum oxide ceramic layer and the graphite ceramic coating are consistent in thickness and are all 0.01-0.02 mm in thickness.

Preferably, the inner surface of the alloy carburized steel layer is wrapped on the outer surface of the alumina ceramic layer, and the inner surface of the alumina ceramic layer is wrapped on the outer surface of the graphite ceramic coating.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model discloses an alloy carburization steel layer, alumina ceramic layer and graphite ceramic coating's setting, reach wear-resisting purpose, avoid the phenomenon that reducing screw body appears wearing and tearing at the in-process that uses, the life of reducing screw body has been improved greatly, through the carborundum ceramic layer, the setting on tungsten carbide metallic coating and alloy ultrahigh strength steel layer, reach the purpose of strengthening the reducing screw body, the practicality of reducing screw body is greatly improved, it does not possess wear-resisting function to have solved current reducing screw, cause the damage to appear on the surface of reducing screw easily at the in-process that uses, greatly reduced reducing screw life's problem.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of the reducing screw body of the present invention;

FIG. 3 is a perspective view of the wear-resistant layer of the present invention;

fig. 4 is a perspective view of the strengthening layer of the present invention.

In the figure: 1. a reducing thread insert body; 2. a feed inlet; 3. a variable diameter screw body; 4. a base diameter plateau region; 5. a bottom diameter increasing region; 6. a wear layer; 61. an alloy carburized steel layer; 62. an alumina ceramic layer; 63. a graphite ceramic coating; 7. a strengthening layer; 71. a silicon carbide ceramic layer; 72. a tungsten carbide metal coating; 73. and (5) an alloy ultrahigh-strength steel layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 4, the reducing screw barrel assembly includes a reducing barrel body 1, a bottom diameter stable region 4 and a bottom diameter increasing region 5, a feed inlet 2 is formed at the top of the reducing barrel body 1, a reducing screw body 3 is disposed in an inner cavity of the reducing barrel body 1, a reinforcing layer 7 is wrapped on the surface of the reducing screw body 3, and a wear-resistant layer 6 is wrapped on the surface of the reinforcing layer 7.

The strengthening layer 7 comprises a silicon carbide ceramic layer 71, a tungsten carbide metal coating 72 and an alloy ultrahigh-strength steel layer 73, the silicon carbide ceramic layer 71, the tungsten carbide metal coating 72 and the alloy ultrahigh-strength steel layer 73 are consistent in thickness, and the thicknesses of the silicon carbide ceramic layer 71, the tungsten carbide metal coating 72 and the alloy ultrahigh-strength steel layer 73 are all 0.02mm-0.03 mm.

The inner surface of the silicon carbide ceramic layer 71 is wrapped on the outer surface of the tungsten carbide metal coating 72, and the inner surface of the tungsten carbide metal coating 72 is wrapped on the outer surface of the alloy ultrahigh-strength steel layer 73.

The wear-resistant layer 6 comprises an alloy carburized steel layer 61, an aluminum oxide ceramic layer 62 and a graphite ceramic coating 63, wherein the alloy carburized steel layer 61, the aluminum oxide ceramic layer 62 and the graphite ceramic coating 63 are consistent in thickness and are all 0.01-0.02 mm in thickness.

The inner surface of the alloy carburized steel layer 61 is wrapped on the outer surface of the alumina ceramic layer 62, and the inner surface of the alumina ceramic layer 62 is wrapped on the outer surface of the graphite ceramic coating 63.

During the use, through alloy carburization steel layer 61, the setting of aluminium oxide ceramic layer 62 and graphite ceramic coating 63, reach wear-resisting purpose, avoid reducing screw body 3 the phenomenon that wearing and tearing appear in the in-process that uses, reducing screw body 3's life has been improved greatly, through carborundum ceramic layer 71, the setting on tungsten carbide metallic coating 72 and alloy ultrahigh strength steel layer 73, reach the purpose of strengthening reducing screw body 3, reducing screw body 3's practicality has been improved greatly, it does not possess wear-resisting function to have solved current reducing screw, cause reducing screw's damage to appear on the surface easily at the in-process that uses, greatly reduced reducing screw life's problem.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Reducing screw rod swivel nut subassembly is including reducing swivel nut body (1), end footpath stationary region (4) and end footpath increase progressively district (5), its characterized in that: feed inlet (2) have been seted up at the top of reducing swivel nut body (1), the inner chamber of reducing swivel nut body (1) is equipped with reducing screw rod body (3), the surface coating of reducing screw rod body (3) has strengthening layer (7), the surface coating of strengthening layer (7) has wearing layer (6).

2. The reducing screw barrel assembly of claim 1, wherein: the strengthening layer (7) comprises a silicon carbide ceramic layer (71), a tungsten carbide metal coating (72) and an alloy ultrahigh-strength steel layer (73), the thicknesses of the silicon carbide ceramic layer (71), the tungsten carbide metal coating (72) and the alloy ultrahigh-strength steel layer (73) are consistent, and the thicknesses are all 0.02mm-0.03 mm.

3. The reducing screw barrel assembly of claim 2, wherein: the inner surface of the silicon carbide ceramic layer (71) is wrapped on the outer surface of the tungsten carbide metal coating (72), and the inner surface of the tungsten carbide metal coating (72) is wrapped on the outer surface of the alloy ultrahigh-strength steel layer (73).

4. The reducing screw barrel assembly of claim 1, wherein: the wear-resistant layer (6) comprises an alloy carburized steel layer (61), an aluminum oxide ceramic layer (62) and a graphite ceramic coating (63), wherein the alloy carburized steel layer (61), the aluminum oxide ceramic layer (62) and the graphite ceramic coating (63) are consistent in thickness, and the thicknesses of the alloy carburized steel layer, the aluminum oxide ceramic layer and the graphite ceramic coating are all 0.01mm-0.02 mm.

5. The reducing screw barrel assembly of claim 4, wherein: the inner surface of the alloy carburized steel layer (61) is wrapped on the outer surface of the alumina ceramic layer (62), and the inner surface of the alumina ceramic layer (62) is wrapped on the outer surface of the graphite ceramic coating (63).