High-performance three roller protection calender
Technical field
This utility model relates to PVC film technical field, especially relates to a kind of high-performance three roller protection press polish
Machine.
Background technology
PVC sheet generally uses three roller curtain coating extrusion processing, and wherein curtain coating extrusion die is PVC with felt wrapped roll
Key equipment in production process, curtain coating extrusion die, along with the extrusion of melt, can produce smog dust, and
Felt wrapped roll has mirror roller, rubber roll, sand roller etc., and it is the highest to environmental requirement, and particularly rubber roll is also to smog
There is adsorption, therefore after producing a period of time, usually shut down because the surface of felt wrapped roll is contaminated clear
Wash, have a strong impact on manufacturing schedule, and shorten the felt wrapped roll life-span.Additionally when producing high-cleanness, high product,
The smog dust in workshop must control in allowed band, otherwise can not produce.
Utility model content
Based on this, it is necessary to for the deficiencies in the prior art, it is provided that a kind of protection running roller is not contaminated to be purified again
The high-performance three roller protection calender of workshop condition.
For solving above-mentioned technical problem, this utility model be the technical scheme is that a kind of high-performance three roller
Protection calender, it includes that frame and protective cover, described frame side are fixedly installed upper roll wheel, lower roll wheel
And middle running roller, described middle running roller is fixedly installed between described upper roll wheel and lower roll wheel, and described protective cover is arranged
At frame opposite side;Described protective cover is provided with fixed frame and protection network, and described fixed frame is fixedly installed on institute
Stating frame one side external surface, described protection network is fixed in fixed frame.
Wherein in an embodiment, described frame includes base and the gripper shoe being fixed on base, described
Gripper shoe is arranged on described base upper surface both sides, and described upper roll wheel, lower roll wheel and middle running roller clamping respectively set
Putting between gripper shoe, described gripper shoe upper end is provided with the first drive mechanism, and described gripper shoe bottom sets
There is the second drive mechanism.
Wherein in an embodiment, described first drive mechanism includes the first motor and the first drive link and
One drives plate, and described first drive link is arranged on first motor one end, and described first drive link and first drives
Plate is fixing to be connected, and described upper roll wheel is arranged between the first driving plate.
Wherein in an embodiment, described second drive mechanism includes the second motor, the second drive link and
Two drive plate, and described second drive link is arranged on second motor one end, and described second drive link and second drives
Plate is fixing to be connected, and described lower roll wheel is arranged between the second driving plate.
Wherein in an embodiment, described protection network width matches with the spacing of described gripper shoe.
Wherein in an embodiment, described protection network height is less than gripper shoe height.
In sum, this utility model high-performance three roller protection calender is by frame one side installation settings
Having protective cover, utilize the shielding character of protection network, the impurity such as dust separating frame lateral part enters, fall
Fall on low upper roll wheel, lower roll wheel and the middle running roller being fixed in frame the probability of upper dust, is also prevented from meanwhile
When PVC sheet transmits on running roller, dust falls into probability thereon, improves PVC sheet and enters next work
The quality of sequence, and then Improving The Quality of Products.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model high-performance three roller protection calender;
Fig. 2 is the structural representation at this utility model high-performance three roller protection another visual angle of calender.
Detailed description of the invention
By feature of the present utility model, technological means and the specific purposes reached, merit can be further appreciated that
Can, with detailed description of the invention, this utility model is described in further detail below in conjunction with the accompanying drawings.
As depicted in figs. 1 and 2, this utility model high-performance three roller protection calender includes frame 10 and protection
Cover 20, described frame 10 side is fixedly installed upper roll wheel 30, lower roll wheel 40 and middle running roller 50, described in
Running roller 50 is fixedly installed between described upper roll wheel 30 and lower roll wheel 40, and described protective cover 20 is arranged on machine
Frame 10 opposite side.
Specifically, described frame 10 includes base 11 and fixes gripper shoe 12 on the pedestal 11, described
Fagging 12 is arranged on described base 11 upper surface both sides, described upper roll wheel 30, lower roll wheel 40 and middle running roller
50 respectively clamping be arranged between gripper shoe 12, described gripper shoe 12 upper end is provided with the first drive mechanism 60,
Described first drive mechanism 60 includes that the first motor (not shown), the first drive link 62 and first drive plate 63,
Described first drive link 62 is arranged on first motor one end, and described first drive link 62 and first drives plate 63
Fixing connection, described upper roll wheel 30 is arranged between the first driving plate 63, described first driven by motor first
Drive link about 62 operates back and forth, and then drives upper roll wheel about 30 reciprocal running back and forth to adjust and central roll
Gap between wheel 50.
Described gripper shoe 12 bottom is provided with the second drive mechanism 70, and described second drive mechanism 70 includes
Two motor the 71, second drive links 72 and second drive plate 73, and described second drive link 72 is arranged on the second electricity
Machine 71 one end, described second drive link 72 is fixing with the second driving plate 73 to be connected, and described lower roll wheel 40 sets
Putting and drive between plate 73 second, described second motor 71 drives the second drive link about 72 to operate back and forth,
And then drive lower roll wheel about 40 reciprocal running back and forth to adjust the gap between middle running roller 50.
Described protective cover 20 is provided with fixed frame 21 and protection network 22, and described fixed frame 21 is fixedly installed on institute
Stating frame 10 1 side external surface, described protection network 22 is fixed in fixed frame 21, and described protection network 22 is wide
Spend the spacing with described gripper shoe 12 to match so that this use new structure is more succinct, easy disassembly;
Described protection network 22 height is less than gripper shoe 12 height so that from upper roll wheel 30, lower roll wheel 40 and middle running roller
The PVC sheet sent out between 50 can send in the gap between protection network 22 and gripper shoe 12
One operation, it also avoid the interference of external dust simultaneously.
When this utility model is specifically used, the PVC sheet of curtain coating extrusion die extrusion is at upper roll wheel 30, lower roll
Take turns cooling of shuttling between 40 and middle running roller 50, regulate by operating the first motor and the second motor 71
Gap between upper roll wheel 30, lower roll wheel 40 and middle running roller 50 regulates the pine that PVC sheet transmits thereon
Tightness, the PVC sheet surface being transmitted between running roller is protected, is prevented external dust from falling by protective cover 20
Enter the quality affecting PVC sheet in PVC sheet or running roller.
In sum, this utility model high-performance three roller protection calender sets by installing at frame 10 one side
Being equipped with protective cover 20, utilize the shielding character of protection network 22, dust separating frame 10 lateral part etc. is miscellaneous
Matter enters, and reduces the upper dust that falls on upper roll wheel 30, lower roll wheel 40 and the middle running roller 50 being fixed in frame 10
Probability, meanwhile, also prevent dust when PVC sheet transmits on running roller and fall into probability thereon, promote
PVC sheet enters the quality of subsequent processing, and then Improving The Quality of Products.
Embodiment described above only have expressed several embodiments of the present utility model, its describe more concrete and
In detail, but therefore can not be interpreted as the restriction to this utility model scope.It should be pointed out that, for
For those of ordinary skill in the art, without departing from the concept of the premise utility, it is also possible to make
Some deformation and improvement, these broadly fall into protection domain of the present utility model.Therefore, guarantor of the present utility model
The scope of protecting should be as the criterion with claims.