CN212499073U

CN212499073U - Unreeling device for miniature pultrusion machine

Info

Publication number: CN212499073U
Application number: CN202021066519.7U
Authority: CN
Inventors: 谈源; 陶魏峰; 谢亚峰; 陈亚飞
Original assignee: Changzhou Xinchuang Intelligent Technology Co Ltd
Current assignee: Changzhou New Intelligent Technology Co Ltd; Changzhou Xinchuang Intelligent Technology Co Ltd
Priority date: 2020-06-10
Filing date: 2020-06-10
Publication date: 2021-02-09
Anticipated expiration: 2030-06-10

Abstract

The utility model relates to the technical field of composite material processing, in particular to an unwinding device for a micro pultrusion machine; the expansion shaft mechanism is fixed on the rack and passively unreels yarns and is divided into an expansion working state and a locking working state; the expansion shaft mechanism comprises a rotating shaft, and one end of the rotating shaft is fixed on the rack through a fixed seat; a conical disk having a sloped face; the inner sleeve is sleeved on the rotating shaft; the assembling end wheels are arranged at two ends of the inner sleeve; the combined pieces are arranged around the inner sleeve in a circle and are hooped by an elastic belt; in a locked state, the combined piece is matched with the assembling end wheel, and the end part of the combined piece is abutted against the slope bottom of the slope surface; and in the expanded state, the end part of the combined piece is abutted against the top of the slope surface. The utility model aims at providing a miniature for pultrusion machine unwinding device to the defect that exists among the prior art, have perfect tight function that expands for the assembly is simple and convenient for the yarn book.

Description

Unreeling device for miniature pultrusion machine

Technical Field

The utility model relates to a technical field that combined material processing handled especially relates to a miniature pultrusion machine unwinding device.

Background

At present, a product formed by pultrusion of carbon fiber yarns is required to be used in a laboratory to test the performance of the product, and as the cross section of the required product has the characteristics of small size, multiple types and small batch, if the existing pultrusion equipment in the current workshop is adopted for production, a production line needs to be arranged for production under the condition of heavy production task, and the requirements of the size, the type, the batch and the like of the product are considered, so that the existing pultrusion equipment in the current workshop is quite unsuitable for production.

Among the prior art, the unreeling shaft that pultrusion equipment adopted simple structure does not possess the tight function of expanding, leads to the yarn book to install and dismantle all very inconvenient.

In view of the above problems, the designer is based on practical experience and professional knowledge that are abundant for many years in engineering application of such products, and is actively researched and created by matching with the application of the theory, so as to design the unwinding device for the micro-pultrusion machine, which has a perfect expansion function, so that the yarn coil is simple and convenient to assemble, and has high practicability.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a miniature for pultrusion machine unwinding device to the defect that exists among the prior art, have perfect tight function that expands for the assembly is simple and convenient to the yarn book, has the practicality.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

the method comprises the following steps:

the yarn unwinding device comprises a rack, an expansion shaft mechanism, a yarn unwinding mechanism and a yarn unwinding mechanism, wherein the expansion shaft mechanism is fixed on the rack and passively unwinds yarn and is divided into an expansion working state and a locking working state;

wherein the shaft expanding mechanism comprises

One end of the rotating shaft is fixed on the rack through a fixed seat;

the conical disc is arranged at the other end of the rotating shaft and is provided with a slope surface;

the inner sleeve is sleeved on the rotating shaft;

the assembling end wheels penetrate through the rotating shaft and are arranged at two ends of the inner sleeve;

the combined pieces are arranged around the inner sleeve in a circle and are hooped by an elastic belt;

under the locking state, the combined piece is matched with the assembling end wheel, and the end part of the combined piece is abutted against the slope bottom of the slope surface; and in the expanded state, the end part of the combined piece is abutted against the top of the slope surface.

Further, the combined sheet comprises an edge and a tile; the edge is vertically placed at the bottom of the tile; the tile is of a circular arc sheet structure.

Furthermore, a plurality of small holes are arranged on the edges; the small holes are used for placing the elastic belts.

Furthermore, a lug is arranged at the end part of the edge; the lug is inserted into a groove formed in the assembling end wheel.

Furthermore, the convex block and the edge form a butting surface; the abutting surface is matched with the slope surface and used for adjusting the expansion and locking working state of the shaft expansion mechanism.

Further, the shaft expanding mechanism further comprises a magnetic powder brake; the magnetic powder brake is fixed at one end of the rotating shaft and used for applying unwinding resistance to ensure that the yarn is unwound smoothly.

Further, the yarn guide device also comprises a bracket and a yarn guide rod; the bracket is fixed on the rack; the yarn guide rod is arranged on the bracket and used for guiding yarns.

Through the technical scheme of the utility model, can realize following technological effect:

through adopting the structural style of combination piece and pivot, the tight function of expanding can be realized to the twisting conical disk for the assembly of yarn book is simple and convenient, has the practicality.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural view of an unwinding device for a micro pultrusion machine in an embodiment of the present invention;

fig. 2 is a schematic structural view of an expanding shaft mechanism of an unwinding device for a micro pultrusion machine in the embodiment of the present invention;

fig. 3 is a schematic structural view of a combination piece of an unwinding device cavity for a micro pultrusion machine in the embodiment of the present invention;

fig. 4 is a schematic structural diagram of the unreeling device for a micro pultrusion machine in the embodiment of the present invention in a locked state;

fig. 5 is a schematic structural view of the unwinding device for the micro pultrusion machine in the embodiment of the present invention in an expanded state;

reference numerals: the yarn guide device comprises a rack 1, a bracket 2, an expansion shaft mechanism 3, a yarn guide rod 4, a rotating shaft 31, a magnetic powder brake 32, a fixed seat 33, a conical disc 34, an inner sleeve 35, a combined piece 36, an assembling end wheel 37, a slope surface 341, an edge 361, small holes 362, a convex block 363, a tile 364, an abutting surface 365 and a groove 371.

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.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are the directions or positional relationships indicated on the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element indicated must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.

An unwinding device for a micro pultrusion machine is shown in figures 1-5 and comprises

The expansion shaft mechanism 3 is fixed on the rack 1, passively unreels yarns and is divided into an expansion working state and a locking working state, a yarn coil is sleeved in the locking working state, and unreeling is carried out on the yarn coil in the expansion working state;

wherein the shaft expanding mechanism 3 comprises

One end of the rotating shaft 31 is fixed on the rack 1 through a fixed seat 33;

a conical disk 34 mounted on the other end of the rotary shaft 31 and having a slope surface 341;

an inner sleeve 35 sleeved on the rotating shaft 31;

assembling end wheels 37, which are penetrated by the rotating shaft 31 and arranged at two ends of the inner sleeve 35;

the combined sheets 36 are arranged around the inner sleeve 35 in a surrounding mode and are tightened by elastic belts;

in the locked state, the combination piece 36 is matched with the assembling end wheel 37, and the end of the combination piece 36 abuts against the slope bottom of the slope surface 341; in the expanded state, the end of the combination piece 36 abuts against the top of the slope 341.

Specifically, in the locked state, the combination piece 36 is matched with the assembling end wheel 37, the slope bottom of the slope surface 341 on the conical disc 34 is abutted against the abutting surface 365, and the diameter of the shaft expanding mechanism 3 is the minimum at the moment, so that the yarn coil is convenient to mount. After the yarn coil is installed, in order to prevent the yarn coil from being off-axis when being unreeled, the conical disc 34 is twisted and pushed, so that the conical disc 34 is displaced towards the assembling end wheel 37, the contact part of the slope surface 341 and the abutting surface 365 is displaced from the slope bottom to the slope top, the jacking tile 364 expands outwards, the yarn coil is locked, and the tightness of the unreeling process is ensured.

Preferably, as shown in fig. 1 to 5, the combination sheet 36 includes an edge 361 and a tile 364; the edge 361 is vertically placed at the bottom of the tile 364; the tiles 364 are circular arc sheet structures.

As a preferred advantage of the above embodiment, as shown in fig. 1 to 5, a plurality of small holes 362 are disposed on the edge 361; the aperture 362 is used to place an elastic band.

Specifically, the elastic band passes through the small hole 362, and the combination piece 36 is reset by elasticity after the expansion state is changed to the locking state.

As a preferable example of the above embodiment, as shown in fig. 1 to 5, a protrusion 363 is disposed at an end of the edge 361; the protrusion 363 is inserted into the groove 371 formed on the assembling end wheel 37.

As a preference of the above embodiment, as shown in fig. 1 to 5, the protrusion 363 and the edge 361 form an abutting surface 365; the abutting surface 365 is matched with the slope surface 341 for adjusting the expansion and locking working state of the shaft expansion mechanism 3.

As a preferred embodiment of the above embodiment, as shown in fig. 1 to 5, the shaft expansion mechanism 3 further includes a magnetic powder brake 32; the magnetic powder brake 32 is fixed at one end of the rotating shaft 31 and used for applying unwinding resistance to ensure that the yarn is unwound smoothly.

Specifically, the shaft expanding mechanism 3 is in a passive unwinding mode, is pulled by a traction device on other stations, and is provided with a magnetic powder brake 32 at one end of the rotating shaft 31 in order to prevent the yarn from being bent during unwinding. The magnetic powder brake 32 applies unwinding resistance to the rotating shaft 31, and unwinding smoothness of the yarn is guaranteed.

As shown in fig. 1 to 5, the yarn guide device of the present invention further includes a holder 2 and a yarn guide bar 4; the bracket 2 is fixed on the rack 1; the yarn guide rod 4 is arranged on the bracket 2 and used for guiding yarns.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. Unreeling device for micro pultrusion machine, which is characterized by comprising

The expansion shaft mechanism (3) is fixed on the rack (1), passively unreels yarns and is divided into an expansion working state and a locking working state, a yarn roll is sleeved in the locking working state, and unreeling is carried out on the yarn roll in the expansion working state;

wherein the shaft expanding mechanism (3) comprises

One end of the rotating shaft (31) is fixed on the rack (1) through a fixed seat (33);

a conical disk (34) mounted on the other end of the rotary shaft (31) and having a slope surface (341);

the inner sleeve (35) is sleeved on the rotating shaft (31);

the assembling end wheels (37) are penetrated by the rotating shaft (31) and are arranged at two ends of the inner sleeve (35);

the combined pieces (36) are arranged around the inner sleeve (35) in a surrounding mode and are tightened by elastic belts;

in the locked state, the combination piece (36) is matched with the assembling end wheel (37), and the end part of the combination piece (36) is abutted against the slope bottom of the slope surface (341); in the expanded state, the end of the combined piece (36) is abutted against the top of the slope surface (341).

2. The unwinding device for micro-pultrusion of claim 1, characterized in that the combination piece (36) comprises an edge (361) and a tile (364); the edge (361) is vertically placed at the bottom of the tile (364); the tiles (364) are of circular arc sheet structures.

3. The unwinding device for the micro pultrusion machine as claimed in claim 2, characterized in that a plurality of small holes (362) are arranged on the edge (361); the small hole (362) is used for placing an elastic belt.

4. The unwinding device for the micro pultrusion machine as claimed in claim 3, characterized in that a bump (363) is arranged at the end of the edge (361); the lug (363) is inserted into a groove (371) formed in the assembling end wheel (37).

5. Unwinding device for micro-pultrusion as claimed in claim 4, characterized in that the projection (363) and the edge (361) form an abutment surface (365); the abutting surface (365) is matched with the slope surface (341) and used for adjusting the expansion and locking working state of the shaft expansion mechanism (3).

6. The unwinding device for micro pultrusion machine as claimed in claim 1, characterized in that the expanding shaft mechanism (3) further comprises a magnetic powder brake (32); the magnetic powder brake (32) is fixed at one end of the rotating shaft (31) and used for applying unwinding resistance to ensure that yarn is unwound smoothly.

7. The unwinding device for the micro pultrusion machine as claimed in any one of claims 1 to 6, characterized by further comprising a bracket (2) and a yarn guide rod (4); the bracket (2) is fixed on the rack (1); the yarn guide rod (4) is arranged on the bracket (2) and used for guiding yarns.