CN213833903U

CN213833903U - Traction roller convenient to disassemble

Info

Publication number: CN213833903U
Application number: CN202022957232.XU
Authority: CN
Inventors: 何海潮; 禹冰冰
Original assignee: SUZHOU JWELL PRECISION MACHINERY CO Ltd
Current assignee: SUZHOU JWELL PRECISION MACHINERY CO Ltd
Priority date: 2020-12-11
Filing date: 2020-12-11
Publication date: 2021-07-30
Anticipated expiration: 2030-12-11

Abstract

The utility model relates to a conveniently-disassembled traction roller, which comprises a pair of hollow shaft heads and a roller shell, wherein the pair of hollow shaft heads are respectively and detachably concentrically arranged at the two ends of the roller shell through a plurality of connecting screws; the hollow shaft head is provided with a shaft head cavity, the hollow shaft head is axially provided with a first connecting surface which is attached to two end surfaces of the roller shell, and the first connecting surface is provided with a plurality of first connecting holes along the circumferential direction; the hollow shaft head is radially provided with a second connecting surface which is attached to the inner surface of the roller shell, the second connecting surface is provided with a sealing groove which surrounds the shaft axis of the second connecting surface by a circle, and a sealing element is arranged in the sealing groove; the roller shell is provided with an inner cavity which is axially communicated, and the left end surface and the right end surface of the roller shell are provided with second connecting holes which are in one-to-one correspondence with the first connecting holes in a plurality of directions along the circumferential direction. Through with hollow spindle nose screw connection on the roller shell, when producing different kind films, only need to change corresponding roller shell, reduction in production cost reduces the change time, shortens processing cycle.

Description

Traction roller convenient to disassemble

Technical Field

The utility model relates to a plastic film, sheet processing field, in particular to pull roller convenient to dismantle.

Background

Plastic films are one of the most important flexible packaging materials, and have various types, different characteristics and different uses, and common plastic films such as: PE film, HDPE film, PP film, PVC film, PET film etc. the film has good toughness, dampproofing and heat sealability, extensively is used for trades such as electron electrical apparatus, machinery, printing. The roller has played critical effect to product quality as the important equipment of extruding production, draws the roller as the next route of shaping roller, after shaping home roll with film extrusion and cooling, draws the roller and will carry out the second time to the film and stretch and cool off, and the effect that produces is different in the difference on roller shell surface is to the roller is tensile and cool off, will influence the film finished product, plays the effect that can not lack to the off-the-shelf quality of film. The film is an industry with great economic situation and great social demand. The requirement of the traction roller is large due to different requirements of customers on the films, the films with different effects need to be replaced by different traction rollers, the different traction rollers increase the processing cost, the replacement of the traction rollers prolongs the film production time, and the processing period is prolonged.

Disclosure of Invention

In order to solve the technical problem, the utility model aims at solving the difference and pulling the roller and increasing manufacturing cost, it is inconvenient to pull the roller and change, problem that processing cycle increases.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme: a traction roller convenient to disassemble comprises a pair of hollow shaft heads and a roller shell, wherein the pair of hollow shaft heads are respectively and detachably and concentrically arranged at two ends of the roller shell through a plurality of connecting screws; the hollow shaft head is provided with a shaft head cavity, the hollow shaft head is provided with a first connecting surface which is attached to two end surfaces of the roller shell in the axial direction, and the first connecting surface is provided with a plurality of first connecting holes along the circumferential direction; the hollow shaft head is radially provided with a second connecting surface attached to the inner surface of the roller shell, the second connecting surface is provided with a sealing groove which surrounds the shaft axis of the hollow shaft head by a circle, and a sealing element is arranged in the sealing groove; the roller shell is provided with an inner cavity which is axially communicated, and the left end surface and the right end surface of the roller shell are provided with a plurality of second connecting holes which are in one-to-one correspondence with the first connecting holes along the circumferential direction.

In the above technical solution, it is further preferable that the plurality of first connecting holes are all radial through holes of the hollow spindle head; and the axis of the second connecting hole is parallel to the axis of the roller shell.

In the above technical scheme, it is further preferable that the roller shell is a hollow seamless alloy steel pipe and is subjected to intermediate frequency quenching treatment.

In the above technical solution, it is further preferable that the outer surface of the drum shell is a mirror surface or a frosted surface.

In the above technical scheme, it is further preferred that the outside of the roller shell is further coated with a silica gel layer.

In the above technical solution, it is further preferable that the sealing element is an O-ring.

Compared with the prior art, the utility model obtain following beneficial effect:

the utility model discloses a with hollow spindle nose screw connection on the roller shell, when producing different kind films, only need to change corresponding roller shell, reduction in production cost reduces the change time, shortens processing cycle.

Drawings

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

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a schematic structural view of a hollow shaft head;

FIG. 4 is a left side view of the hollow stub shaft;

FIG. 5 is a schematic structural view of a drum shell;

FIG. 6 is a left side view of the drum shell;

FIG. 7 is a schematic structural view of a silica gel layer wrapped on the outer surface of the roller shell.

Wherein: 1. a hollow shaft head; 101. a first connection face; 102. a second connection face; 11. a hollow cavity of the shaft head; 12. a first connection hole; 13. a sealing groove; 2. an O-shaped sealing ring; 3. a connecting screw; 4. a roller housing; 41. an inner cavity; 42. a second connection hole; 43. and (5) a silica gel layer.

Detailed Description

To explain the technical content, structural features, achieved objects and functions of the present invention in detail, the following detailed description will be made with reference to the accompanying drawings, wherein the left and right positional relationships in the present specification correspond to the left and right in fig. 1, respectively.

As shown in fig. 1 and 2, the utility model relates to a conveniently-disassembled traction roller, which comprises a roller shell 4, a pair of hollow shaft heads 1, an O-shaped sealing ring 2 and a plurality of connecting screws 3; a pair of hollow shaft heads 1 are respectively and detachably and concentrically arranged at two ends of a roller shell 4 through a plurality of connecting screws 3; the O-shaped sealing ring is elastically arranged at the joint of the roller shell 4 and the hollow shaft head 1.

As shown in fig. 2 to 4, the hollow shaft head 1 has a shaft head cavity 11 penetrating in the axial direction, the hollow shaft head 1 has a first connecting surface 101 attached to two end surfaces of the roller shell 4 in the axial direction, the first connecting surface 101 is provided with a plurality of first connecting holes 12 along the circumferential direction, and the first connecting holes 12 are axial through holes; the hollow shaft head 1 is provided with a second connecting surface 102 which is attached to the inner surface of the roller shell 4 in the radial direction, the second connecting surface 102 is provided with a sealing groove 13 which surrounds the shaft axis of the hollow shaft head by a circle, and an O-shaped sealing ring is arranged in the sealing groove 13.

As shown in fig. 1, 5 and 6, the roller shell 4 is a seamless alloy steel pipe and has an inner cavity 41 which is axially penetrated, the left and right end faces of the roller shell 4 are provided with second connecting holes 42 which are in one-to-one correspondence with the first connecting holes 12 along the circumferential direction, and the axis of the second connecting holes 42 is parallel to the axis of the roller shell 4.

As shown in fig. 7, the outer surface of the drum shell 4 is processed in the form of a layer (43) of wrapping silica gel. The outer surface of the roller shell 4 can be processed into other forms such as frosted and mirror surfaces, and the like, so as to be matched with films made of different materials for use.

As shown in fig. 1, the hollow arrow direction is the flow direction of the cooling water, the shaft head inner cavities 11 of the pair of hollow shaft heads 1 are communicated with the inner cavity 41 of the roller shell 4, the cooling water flows into the inner cavity 41 of the roller shell 4 from the shaft head inner cavity 11 of the left hollow shaft head 1, the cooling water takes away the heat on the roller shell 4 in a direct heat exchange mode, flows out from the shaft head inner cavity 11 of the right hollow shaft head 1, and the roller shell 4 is rapidly and uniformly cooled.

During the use, all install O type sealing washer 2 in the seal groove 13 of a pair of hollow spindle nose 1, then assemble hollow spindle nose 1 and roller shell 4, connect the fastening through a plurality of connecting screw 3 and form a whole, add the cooling water in to the roller, play secondary drawing and refrigerated effect to the film on the production line. When the roller shell 4 needs to be replaced, the connecting screws 3 are taken down and replaced with the roller shell 4 with different outer surfaces, and then the roller shell 4 is connected according to the original assembly mode.

The utility model discloses a with 1 screwed connection of hollow spindle nose on roller shell 4, when producing different kind films, only need change corresponding roller shell 4, reduction in production cost reduces the change time, shortens processing cycle.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration only, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims, specification and equivalents thereof.

Claims

1. A conveniently-detachable traction roller comprises a pair of hollow shaft heads (1) and a roller shell (4), and is characterized in that the pair of hollow shaft heads (1) are respectively detachably and concentrically arranged at two ends of the roller shell (4) through a plurality of connecting screws (3); the hollow shaft head (1) is provided with a shaft head cavity (11), the hollow shaft head (1) is axially provided with a first connecting surface (101) which is attached to two end surfaces of the roller shell (4), and the first connecting surface (101) is provided with a plurality of first connecting holes (12) along the circumferential direction; the hollow shaft head (1) is provided with a second connecting surface (102) which is attached to the inner surface of the roller shell (4) in the radial direction, a sealing groove (13) which surrounds the shaft axis of the hollow shaft head in a circle is formed in the second connecting surface (102), and a sealing element is installed in the sealing groove (13); the roller shell (4) is provided with an inner cavity (41) which is axially communicated, and second connecting holes (42) which are in one-to-one correspondence with the first connecting holes (12) are formed in the left end surface and the right end surface of the roller shell (4) along the circumferential direction.

2. A traction drum easy to disassemble according to claim 1, characterized in that a plurality of said first connection holes (12) are radial through holes of said hollow shaft head (1); the axial lead of the second connecting hole (42) is parallel to the axial lead of the roller shell (4).

3. The easy-to-disassemble traction roller is characterized in that the roller shell (4) is a hollow seamless alloy steel pipe and is subjected to medium-frequency quenching treatment.

4. A traction drum easy to disassemble according to claim 1, characterized in that the outer surface of the drum shell (4) is mirror or frosted.

5. A traction drum easy to disassemble according to claim 1, characterized in that the outside of the drum shell (4) is also coated with a silicone layer (43).

6. A traction drum facilitating disassembly according to claim 1, wherein the sealing element is an O-ring (2).