阅读说明：本技术 用于电缆挤出机的组合式通用机头 (Combined universal machine head for cable extruder ) 是由 艾卫民 吴兴君 卢贝贝 侯雯馨 于 2019-11-21 设计创作，主要内容包括：用于电缆挤出机的组合式通用机头,涉及电缆挤出机技术领域,其包括模芯和模套,模芯的后端可拆卸连接有模芯座,模套可拆卸连接有模套座,模套座沿轴向开设有用于卡入模套的安装孔,安装孔的后端连接有用于间隔套设在模芯座外部的锥形孔,安装孔的后端环形设置有用于抵住模套后端面的限位台阶,模套的前端套设有锁紧螺母,锁紧螺母包括前端部和后端部,模套座的前部与模套之间设有螺母配合间隙,后端部伸入螺母配合间隙并抵住模套外壁的台阶,后端部与模套座的内壁面螺纹连接,模芯座与模套座之间形成用于供原料通过的锥形间隙,锥形间隙连通模芯与模套的间隙。本发明在极大程度上降低制造成本,减少资源浪费,方便车间统一管理和维护。(A general aircraft nose of combination formula for cable extruder, relate to cable extruder technical field, it includes mold core and die sleeve, the rear end of mold core can be dismantled and be connected with the mold core seat, the die sleeve can be dismantled and be connected with the die sleeve seat, the die sleeve seat is offered along the axial and is used for the card to go into the mounting hole of die sleeve, the rear end of mounting hole is connected with and is used for the spacer sleeve to establish the bell mouth in the mold core seat outside, the rear end annular of mounting hole is provided with the spacing step that is used for supporting the die sleeve rear end face, the front end cover of die sleeve is equipped with lock nut, lock nut includes preceding tip and back tip, be equipped with nut fit clearance between the front portion of die sleeve seat and the die sleeve, back tip stretches into nut fit clearance and supports the step of die sleeve outer wall, the internal face threaded connection of back tip and die sleeve seat, form the taper clearance that is used for supplying the raw materials to pass through between die core. The invention greatly reduces the manufacturing cost, reduces the resource waste and is convenient for the unified management and maintenance of workshops.)

1. A general aircraft nose of combination formula for cable extruder, including mold core (1) and die sleeve (2), its characterized in that: the rear end of the mold core (1) is detachably connected with a mold core seat (3), the rear end of the mold core seat (3) can be connected with a machine head core rod of a cable extruder, the mold sleeve (2) is detachably connected with a mold sleeve seat (4), an installation step matched with a machine head fixing seat is arranged on the outer wall surface of the mold sleeve seat (4), the mold sleeve seat (4) is axially provided with an installation hole (4 a) used for clamping the mold sleeve (2), the rear end of the installation hole (4 a) is connected with a conical hole (4 b) used for sleeving the mold core seat (3) at intervals, the rear end of the installation hole (4 a) is annularly provided with a limit step (4 c) used for abutting against the rear end surface of the mold sleeve (2), the front end sleeve of the mold sleeve (2) is provided with a locking nut (5), the locking nut (5) comprises a front end part (5 a) and a rear end part (5 b), and a nut fit gap is arranged between the front part of the mold sleeve seat (4) and the mold sleeve (2), the rear end part (5 b) extends into the nut fit clearance and abuts against a step on the outer wall of the die sleeve (2), the rear end part (5 b) is in threaded connection with the inner wall surface of the die sleeve seat (4), a tapered clearance (6) for raw materials to pass through is formed between the die core seat (3) and the die sleeve seat (4), and the tapered clearance (6) is communicated with a clearance between the die core (1) and the die sleeve (2).

2. Combined universal head for cable extruders according to claim 1, characterized in that: the diameter of the front end portion (5 a) is larger than the diameter of the rear end portion (5 b).

3. Combined universal head for cable extruders according to claim 2, characterized in that: a plurality of clamping grooves (5 c) are arranged on the outer wall surface of the front end part (5 a) at intervals in an annular mode.

4. Combined universal head for cable extruders according to claim 3, characterized in that: the inner wall surface of the front end part (5 a) is in a horn shape which is gradually enlarged from back to front.

5. Combined universal head for cable extruders according to claim 1, characterized in that: the inner wall surface of the front end of the mold core seat (3) is connected with the outer wall surface of the rear end of the mold core (1) through threads.

Technical Field

The invention relates to the technical field of cable extruders, in particular to a combined universal machine head for a cable extruder.

Background

The cable extruder is an important device for cable molding, when cables of different specifications are produced, the head dies of the adopted cable extruder are different, 150 heads of the cable extruder are shown in figure 1 and mainly comprise a die core (the inner wall surface at the rear end of the die core is matched with the head core) for connecting the head core and a die sleeve (the outer wall of the die sleeve is provided with a step for being matched and installed with the head fixing seat) for connecting the head fixing seat, and raw materials pass through a gap between the die core and the die sleeve during processing and are extruded from the front end for molding.

Because the head cost of the cable extruder is low, the raw material cost for producing a set of mold core and mold sleeve is expensive, for the same production workshop, if a 120+90 cable extruder is additionally used for production, a large cost is needed to design and prepare a new head, and when a specified product required by a customer is produced and processed, the situation that the 120+90 cable extruder works and the 150 cable extruder stops is often caused, therefore, the two types of extruders are respectively provided with a single head, so that the manufacturing cost is increased, the difficulty of later maintenance is increased, and resources are wasted to a great extent.

Disclosure of Invention

The invention aims to provide a combined universal machine head which can be suitable for a 150 cable extruder and a 120+90 cable extruder, greatly reduces the manufacturing cost, reduces the resource waste and is convenient for unified management and maintenance of workshops.

In order to solve the technical problems, the invention adopts the following technical scheme: a combined universal machine head for a cable extruder comprises a mold core and a mold sleeve, wherein the rear end of the mold core is detachably connected with a mold core seat, the rear end of the mold core seat can be connected with a machine head core rod of the cable extruder, the mold sleeve is detachably connected with a mold sleeve seat, an installation step matched with a machine head fixing seat is arranged on the outer wall surface of the mold sleeve seat, the mold sleeve seat is axially provided with an installation hole for clamping the mold sleeve, the rear end of the installation hole is connected with a conical hole for sleeving the mold core seat outside by a spacer, the rear end of the installation hole is annularly provided with a limiting step for supporting the rear end surface of the mold sleeve, the front end sleeve of the mold sleeve is provided with a locking nut, the locking nut comprises a front end part and a rear end part, a nut fit gap is arranged between the front part of the mold sleeve seat and the mold sleeve, the rear end part extends into the nut fit gap and supports the step on the, the rear end part is in threaded connection with the inner wall surface of the die sleeve seat, a conical gap for raw materials to pass through is formed between the die core seat and the die sleeve seat, and the conical gap is communicated with the gap between the die core and the die sleeve.

Preferably, the diameter of the front end portion is larger than the diameter of the rear end portion.

More preferably, a plurality of locking grooves are annularly arranged on the outer wall surface of the front end at intervals.

More preferably, the inner wall surface of the front end portion is in a horn shape gradually expanding from the back to the front.

More preferably, the inner wall surface of the front end of the die core seat is connected with the outer wall surface of the rear end of the die core through threads.

The invention has the beneficial effects that: the die core seat is connected to the rear part of the die core, the die sleeve seat is connected to the die sleeve and fixed through the locking nut, the integral structure of the original machine head is enlarged, the machine head can be matched with a 120+90 cable extruder for use, the die core seat, the die sleeve seat and the locking nut are disassembled when needed, the machine head can be matched with the 150 cable extruder for use, the manufacturing cost is reduced to the maximum extent, the resource waste is reduced, the resources are fully utilized, and the workshop is convenient to uniformly manage and maintain.

Drawings

FIG. 1 is a schematic view of the overall structure of a head of a 150 cable extruder;

FIG. 2 is a schematic view of the overall structure of a combined universal handpiece in an embodiment of the present invention;

FIG. 3 is a schematic structural view of a core holder in the embodiment;

FIG. 4 is a schematic side view of the core holder of the embodiment;

FIG. 5 is a schematic structural view of a die sleeve holder in the embodiment;

FIG. 6 is a schematic structural view of a lock nut in the embodiment;

fig. 7 is a side view schematically showing the construction of the lock nut in the embodiment.

The reference signs are:

1-mould core 2-mould sleeve 3-mould core seat

4-die sleeve seat 4 a-mounting hole 4 b-conical hole

4 c-limit step 5-locking nut 5 a-front end

5 b-rear end 5 c-neck 6-conical gap.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.

It should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are used broadly in the present invention, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Further, in the present invention, unless otherwise expressly specified or limited, the first feature "on" or "under" the second feature may comprise the first and second features being in direct contact, or may comprise the first and second features being in contact, not in direct contact, but via another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature. The terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the invention.

As shown in fig. 1-7, a combined universal head for a cable extruder comprises a mold core 1 and a mold sleeve 2, the rear end of the mold core 1 is detachably connected with a mold core base 3, the rear end of the mold core base 3 is connected with a head core rod of the cable extruder, the mold sleeve 2 is detachably connected with a mold sleeve base 4, the outer wall surface of the mold sleeve base 4 is provided with a mounting step matched with a head fixing base, the mold sleeve base 4 is axially provided with a mounting hole 4a for clamping the mold sleeve 2, the rear end of the mounting hole 4a is connected with a tapered hole 4b for sleeving the mold core base 3 at intervals, the rear end of the mounting hole 4a is annularly provided with a limit step 4c for abutting against the rear end surface of the mold sleeve 2, the front end of the mold sleeve 2 is sleeved with a locking nut 5, the locking nut 5 comprises a front end part 5a and a rear end part 5b, a nut fit gap is arranged between the front part of the mold sleeve base 4 and the mold sleeve 2, the rear end part 5b extends into the nut fit gap, the rear end part 5b is in threaded connection with the inner wall surface of the die sleeve seat 4, a conical gap 6 for raw materials to pass through is formed between the die core seat 3 and the die sleeve seat 4, and the conical gap 6 is communicated with the gap between the die core 1 and the die sleeve 2.

The combined universal machine head for the cable extruder provided by the embodiment is characterized in that the rear part of the mold core 1 is connected with the mold core seat 3, and meanwhile, the mold sleeve seat 4 is connected with the mold sleeve 2 and is fixed by the locking nut 5, so that the integral structure of the original machine head is enlarged, the machine head can be matched with a 120+90 cable extruder for use, raw materials can enter the conical gap 6 and then enter the gap between the mold core 1 and the mold sleeve 2 when reaching the machine head in the production process, the mold core seat 3, the mold sleeve seat 4 and the locking nut 5 are disassembled when needed, and the machine head can be matched with the cable extruder 150 for use, so that the manufacturing cost is reduced to the greatest extent, the resource waste is reduced, the resources are fully utilized, and the unified management and maintenance of a workshop are facilitated.

Preferably, the diameter of the front end portion 5a of the lock nut 5 is larger than that of the rear end portion 5b, wherein a plurality of clamping grooves 5c are annularly arranged on the outer wall surface of the front end portion 5a at intervals, and when the lock nut 5 is installed, the lock nut 5 can be connected with the clamping grooves 5c through a tool such as a clamping jaw, so that the lock nut 5 and the die sleeve seat 4 can be conveniently screwed together.

More preferably, the inner wall surface of the front end portion 5a is in a horn shape gradually expanding from back to front, and this structure can effectively prevent the cable from being scraped between the cable extruded from the front end of the head and the inner wall surface of the lock nut 5 or the front end corner of the lock nut 5, thereby protecting the production quality of the product to a certain extent.

In addition, in this embodiment, the inner wall surface of the front end of the mold core seat 3 is connected with the outer wall surface of the rear end of the mold core 1 through threads, so that the assembly and disassembly are convenient.

The above embodiments are preferred implementations of the present invention, and the present invention can be implemented in other ways without departing from the spirit of the present invention.

Some of the drawings and descriptions of the present invention have been simplified to facilitate the understanding of the improvements over the prior art by those skilled in the art, and some other elements have been omitted from this document for the sake of clarity, and it should be appreciated by those skilled in the art that such omitted elements may also constitute the subject matter of the present invention.