CN219618437U

CN219618437U - PPS film production line with transverse stretching structure

Info

Publication number: CN219618437U
Application number: CN202320392668.XU
Authority: CN
Inventors: 李玉; 黄雄俊; 黄伟宁; 李茂�
Original assignee: Dongguan Bazhoutong Energy Materials Co ltd
Current assignee: Dongguan Bazhoutong Energy Materials Co ltd
Priority date: 2023-03-06
Filing date: 2023-03-06
Publication date: 2023-09-01
Anticipated expiration: 2033-03-06

Abstract

The utility model provides a PPS film production line with horizontal stretching structure has set gradually extruder, pull roll group, vertical stretching mechanism, horizontal stretching mechanism and wind-up roll group along production process, wherein the extruder end be equipped with the extrusion die lip that the pull roll group corresponds, the pull roll group is used for accepting the film that extrudes through extrusion die lip to draw its roll-in extension back into inside the vertical stretching mechanism, its characterized in that, horizontal stretching mechanism is including: and the heating device is arranged on the frame and used for heating the upper side surface and the lower side surface of the film. The PPS film production line with the transverse stretching structure provided by the utility model can fully stretch the film and has stronger stability.

Description

PPS film production line with transverse stretching structure

Technical Field

The utility model relates to the technical field of film production equipment, in particular to a PPS film production line with a longitudinal stretching structure.

Background

In the production process of the film, plastic particles are heated into a molten state through an injection molding extruder and extruded through an extrusion die lip, so that a sheet-shaped product is manufactured, and the sheet-shaped product is longitudinally stretched and transversely stretched through a production line, so that the film with a larger area and a thinner film is processed, and the film is produced in the technical field of the current film production.

In the current film products, most of the adopted materials are plastic materials such as PC, PA and the like, along with the continuous expansion of the application market, manufacturers continuously increase the requirements of film performances, films taking PPS as raw materials begin to appear at present, but when the PPS materials are processed, the situation that the films retract along with the reduction of the film temperature after the films are stretched is found, meanwhile, in the process of heating the stretched films, hot air is usually introduced into a closed space, so that the whole space is heated, and materials are heated, but a large amount of energy loss is caused.

Therefore, a new PPS film production line with a transverse stretching structure is needed to solve the above-mentioned technical problems.

Disclosure of Invention

The utility model aims to provide a PPS film production line with a transverse stretching structure, which is used for the technical problems.

The utility model provides a PPS film production line with horizontal stretching structure has set gradually extruder, pull roll group, vertical stretching mechanism, horizontal stretching mechanism and wind-up roll group along production process, wherein the extruder end be equipped with the extrusion die lip that the pull roll group corresponds, the pull roll group is used for accepting the film that extrudes through extrusion die lip to draw its roll-in extension back into inside the vertical stretching mechanism, horizontal stretching mechanism includes:

a frame;

the conveying track is assumed to be arranged on the frame and comprises a first track and a second track which are symmetrically arranged, the first track and the second track are of a circulation loop structure, a first chain clamp and a second chain clamp are respectively connected onto the first track and the second roller way in a sliding manner, the first chain clamp and the second chain clamp respectively clamp the two edges of the film, the conveying track further comprises a driving device for driving the first chain clamp and the second chain clamp to respectively reciprocate along the first track and the second track, and the distance between the first track and the second track at the head end of the conveying track is smaller than the distance between the first track and the second track at the tail end of the conveying track;

the clamping device is arranged at the head end of the conveying track and used for clamping and fixing two edges of the film on the first chain clamp and the second chain clamp respectively;

the demolding device is arranged at the tail end of the conveying track and is used for separating two sides of the film from the first chain clamp and the second chain clamp;

and the heating device is arranged on the frame and used for heating the upper side surface and the lower side surface of the film.

Further, the conveying track comprises a preheating zone, a stretching zone and a shaping zone, the distance between the first track and the second track in the preheating zone is matched with the output width of the longitudinal stretching mechanism, the distance between the first track and the second track in the stretching zone is gradually increased along the film conveying direction, and the distance between the first track and the second track in the shaping zone is the same as the width of a film finished product and is mutually matched with the winding roller set.

Further, the length of the shaping zone is greater than or equal to the sum of the lengths of the preheating zone and the stretching zone.

Further, the heating device includes:

the heating source is arranged on the rack;

the air duct comprises two air ducts which are respectively positioned at the upper side and the lower side of the film, one end of the air duct is mutually communicated with the heating source, the other end of the air duct is of a closed structure, and a plurality of air holes are formed in the side face of the air duct, facing the film, of the air duct to blow hot air towards the direction of the film.

Further, the heating source comprises a box body, the heating source is arranged in the box body, the air duct is communicated with the box body, and a fan is further arranged on the box body and used for blowing heat of the heating source to the direction of the air duct.

Compared with the prior art, the utility model has the beneficial effects that:

the embodiment of the utility model provides a PPS film production line with a transverse stretching structure, which is characterized in that the upper side surface and the lower side surface of a material are sufficiently heated in the process of transversely stretching the material, so that stretching processing can be carried out far, and the material is blown with hot air through an air duct, so that energy loss is reduced, the material is sufficiently heated in the whole stretching process, the material can be more sufficiently stretched, a shaping area is arranged, and the condition of temperature dip can be prevented by sufficiently heating in the shaping area, so that the film temperature can be slowly reduced, and the stability of the film is effectively improved.

The utility model is further described below with reference to the drawings and embodiments of the specification.

Drawings

Fig. 1 is a top view of the present utility model.

Fig. 2 is a top view of an extruder and a set of draw rolls in the present utility model.

Fig. 3 is a top view of the lateral stretching mechanism of the present utility model.

FIG. 4 is an enlarged partial view of the portion A in FIG. 3

Fig. 5 is a partial enlarged view of the portion B in fig. 3.

FIG. 6 is a schematic view of a heating device according to the present utility model.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects solved by the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It should be noted that all directional indications (such as up, down, left, right, front, and rear are used in the embodiments of the present utility model) are merely for explaining the relative positional relationship, movement conditions, and the like between the components in a certain specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication is changed accordingly.

In addition, the descriptions of "first," "second," etc. in the embodiments of the present utility model are provided for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

The embodiment of the utility model provides a PPS film production line with a transverse stretching structure, which is provided with an extruder 100, a traction roller set 200, a longitudinal stretching mechanism 300, a transverse stretching mechanism 400 and a winding roller set 500 along the production process of a film 800, wherein the end part of the injection extruder 100 is provided with an extrusion die lip 101, so that PPS plastic is processed into a molten state and extruded on the extrusion die lip 101, and is stretched by the traction roller set 200 and conveyed towards the longitudinal stretching mechanism 300, so that after the material is longitudinally stretched by the longitudinal stretching mechanism 300, the material is conveyed to the position above the transverse stretching mechanism 400, and is transversely stretched into the film 800, and is wound into rolls by the winding roller set 500.

As shown in fig. 3 to 6, the transverse stretching mechanism 400 includes a frame (not shown) extending along a line, and a conveying rail is disposed above the frame, wherein the conveying rail 410 includes two first rails 411 and first rails 411 disposed symmetrically to each other, both rails are circulation loop structures, a plurality of first chain clamps 413 are slidably connected above the first rails 411, the first chain clamps 413 are distributed at equal intervals, for clamping one edge of the material, the second rails 412 are slidably connected above the second rails 412 with a plurality of second chain clamps 414, the same, the second chain clamps 414 are spaced apart from each other at equal intervals, for clamping the other edge of the material, so that the material can be driven to move along the length direction of the conveying rail in the process that the first chain clamps 413 and the second chain clamps 414 are driven by a driving device, and it is worth noting that the distance between the first rails 411 and the second rails 412 at the head end position of the whole rail is smaller than that between the two tail end positions of the conveying rail, that is gradually separated by the first chain clamps 413 and the second chain clamps 413, and the second chain clamps are gradually moved along the first chain clamps 413 and the second chain clamps 413, respectively, and the first chain clamps are gradually stretched along the first chain clamps and the second chain clamps 413. As shown in fig. 3, the transverse stretching mechanism 400 further includes a clamping device 420 located at the front end of the conveying track, which is used for clamping and fixing two edges of the film 800 on the first chain clamp 413 and the second chain clamp 414 respectively, and at the tail end of the conveying track, a demolding device 430 is provided for separating the face edge of the film 800 from the first chain clamp 413 and the second chain clamp 414, so that the material white winding roller set 500 after being transversely stretched can be conveniently collected into a roll. Meanwhile, a heating device 440 is further arranged on the frame and used for heating the upper side and the lower side of the film 800 simultaneously, as shown in fig. 3, the heating device 440 is uniformly distributed on the whole conveying track, so that materials can be uniformly heated in the whole stretching process, and it is worth noting that the materials can be uniformly heated by simultaneously heating the upper side and the lower side of the materials, and the stretching process is ensured.

As shown in fig. 3, the conveying track is divided into three areas, namely, a preheating area 415, a stretching area 416 and a shaping area 417, wherein when the first track 411 and the second track 412 are located in the preheating area 415, the interval between the first track 411 and the second track 412 is matched with the width output by the longitudinal stretching mechanism 300, so that the longitudinally stretched material is transferred into the preheating area 415, the interval between the first track 411 and the second track 412 in the stretching area 416 is gradually increased, so that the material is gradually stretched and widened in the stretching area 416, the interval between the first track 411 and the second track 412 in the shaping area 417 is the same as the preset width of the finished film 800, that is, the maximum width of the stretched area 416 is the preset width of the finished film 800, and the shaping area 417 holds the width, so that the film 800 can be held below the stretching width, so that the shaped material is shaped, and the width of the shaping area 417 is also matched with the width of the winding roller set 500, so that the shaped film 800 can be conveyed onto the winding roller set 500. It should be noted that, the heating device 440 is respectively located at the preheating zone 415, the stretching zone 416 and the shaping zone 417 at different temperatures, specifically, when the heating device 440 is located within the preheating zone 415 and the stretching zone 416, the temperature gradually increases, so that the molecules of the material can be promoted to have stronger activity, and thus the material can be conveniently stretched sufficiently. The heating device 440 gradually reduces the temperature in the setting area 417, so that the material can be slowly cooled, the situation that the temperature is rapidly reduced to shrink is avoided, and meanwhile, the stress generated by stretching in the material can be also effectively caused by the slow temperature reduction, so that the stability and uniformity of the film 800 can be ensured.

As shown in fig. 3, the length dimension of the shaping zone 417 is set to be longest and the length dimension thereof is larger than the sum of the lengths of the preheating zone 415 and the stretching zone 416 within three zones of the conveying track, by which the stretched film 800 can have a longer distance for cooling, the slower the temperature thereof is cooled, the more stable the stretched film 800, and the more uniform the stretching, the better the performance of the film 800.

In the embodiment of the present utility model, an example is given of a specific structure of the heating device 440, as shown in fig. 6, the heating device includes a heat source 441 mounted on a frame, and two air channels 442 respectively located at an upper side and a lower side of the film 800 are connected to the heat source 441, specifically, one end of the air channel 442 is communicated with the heat source 441, and the other end is in a closed state, so that heat generated by the heat source 441 can be uniformly blown onto the film 800 by providing an air vent 443 facing the film 800 on the surface thereof. As shown in fig. 6, the heating device includes a plurality of heating devices which are arranged side by side and uniformly distributed in the conveying range of the conveying track 410, so that the film 800 in the whole stretching process can be heated uniformly, and the pillow can be stretched uniformly.

Specifically, the heat source 441 includes a housing 444 mounted on the frame, a heat source 446 is mounted in the housing 444, so as to continuously emit heat, the air duct 442 is communicated with the interior of the housing 444, and a blower 445 is disposed on the bottom of the housing for blowing heat into the air duct 442.

The film production line that this embodiment provided can be in the in-process to the material is tensile, to the even heating of the upper and lower side of material, the mode of heating is through blowing hot-blast even to on the both sides face of material, and the utilization ratio of heat energy is higher, simultaneously, thereby can be more even through hot-blast heating the material can guarantee that the material is even by tensile, setting to the design district 417, can reduce the speed that material temperature reduces, avoid there being the condition that the temperature suddenly drops to appear breaking or shrink, can have and make film 800 more stable and even.

Various other corresponding changes and modifications will occur to those skilled in the art from the disclosure herein, and all such changes and modifications are intended to be included within the scope of the present utility model.

Claims

1. The utility model provides a PPS film production line with horizontal stretching structure has set gradually extruder, pull roll group, vertical stretching mechanism, horizontal stretching mechanism and wind-up roll group along production process, wherein the extruder end be equipped with the extrusion die lip that the pull roll group corresponds, the pull roll group is used for accepting the film that extrudes through extrusion die lip to draw its roll-in extension back into inside the vertical stretching mechanism, its characterized in that, horizontal stretching mechanism is including:

a frame;

2. The PPS film production line with the transverse stretching structure according to claim 1, wherein the conveying track includes a preheating zone, a stretching zone, and a shaping zone, a distance between the first track and the second track in the preheating zone is adapted to an output width of the longitudinal stretching mechanism, a distance between the first track and the second track in the stretching zone is gradually increased along a film conveying direction, and a distance between the first track and the second track in the shaping zone is the same as a width of a film finished product, and is mutually adapted to the wind-up roll set.

3. The PPS film production line with a transverse stretching structure according to claim 2, wherein the length of the shaping zone is greater than or equal to the sum of the lengths of the preheating zone and the stretching zone.

4. A PPS film production line having a transverse stretching structure as recited in claim 3, wherein said heating means includes:

the heating source is arranged on the rack;

5. The PPS film production line with the transverse stretching structure according to claim 4, wherein the heat source includes a case, the heat source is installed in the case, the air duct is mutually communicated with the case, and a fan is further installed on the case, for blowing heat of the heat source toward the air duct.