CN215040053U

CN215040053U - EVA solar backboard film extrusion conveying device

Info

Publication number: CN215040053U
Application number: CN202121590668.8U
Authority: CN
Inventors: 林美景; 彭钦场; 郭金伟
Original assignee: Fujian Wellson Machinery Co ltd
Current assignee: Fujian Wellson Machinery Co ltd
Priority date: 2021-07-13
Filing date: 2021-07-13
Publication date: 2021-12-07
Anticipated expiration: 2031-07-13

Abstract

The utility model discloses an EVA solar backboard film extrusion conveying device, which comprises an extrusion device, a conveying cooling device and a rim charge recovery device; the conveying and cooling device is arranged at the discharge end of the extrusion device, and the scrap recovery device is arranged at the feed end of the extrusion device; carry cooling device and include the base, carry the web curtain, web curtain drive arrangement and blast apparatus, web curtain drive arrangement includes and rotates drive roll and the driving roller of being connected with the base to and drive roll pivoted conveying motor, carry the web curtain around establishing on drive roll and driving roller, carry the web curtain to have the transport section that is used for bearing the weight of the transport film, blast apparatus establishes the below at the transport section. After adopting above-mentioned structure, this is novel can temper the film of just extruding, makes the temperature on its surface more even, releases simultaneously and reduces the internal stress of film.

Description

EVA solar backboard film extrusion conveying device

Technical Field

The utility model relates to a conveyor field is extruded to the film, concretely relates to conveyor is extruded to EVA solar energy backplate film.

Background

The solar backboard is also called as a solar backboard film, is positioned on the back of the solar cell panel, plays a role in protecting and supporting the cell, and has reliable insulativity, water resistance and aging resistance.

The temperature of the film after extrusion molding is high, and the film molding process at present directly conveys the molded film by a driving roller. Because the temperature of the film is too high, the film can not release stress during conveying, and the film is easy to deform and warp edges when being pulled and conveyed by a driving roller, so that the product quality of the film is influenced.

In view of the above, the applicant has made an intensive study to solve the above problems and has made the present invention.

Disclosure of Invention

The utility model discloses a main aim at provides a conveyor is extruded to EVA solar energy backplate film can temper the film of just extruding, makes the temperature on its surface more even, releases and reduces the internal stress of film simultaneously.

In order to achieve the above purpose, the solution of the present invention is:

an EVA solar backboard film extrusion conveying device comprises an extrusion device, a conveying cooling device and an edge material recovery device; the conveying and cooling device is arranged at the discharge end of the extrusion device, and the scrap recovery device is arranged at the feed end of the extrusion device; carry cooling device and include the base, carry the web curtain, web curtain drive arrangement and blast apparatus, web curtain drive arrangement includes and rotates drive roll and the driving roller of being connected with the base to and drive roll pivoted conveying motor, carry the web curtain around establishing on drive roll and driving roller, carry the web curtain to have the transport section that is used for bearing the weight of the transport film, blast apparatus establishes the below at the transport section.

Further, blast apparatus is including the casing of blowing, the upper end of the casing of blowing is equipped with the air outlet towards the transport section setting, the lateral wall of air outlet from top to bottom inclines to the middle part gradually, and the lower extreme of the casing of blowing is equipped with the intake stack, and the intake stack has seted up the air intake in the lateral wall of the casing of blowing, the air intake is connected with the air-blower, and the upper end of intake stack is equipped with the scattered wind baffle that the slope set up, is equipped with the ventilation hole on the scattered wind baffle, the baffle that looses inclines to the outside gradually from top to bottom.

Further, extrusion device includes the barrel main part, urceolus cover and oil temperature control device, the barrel main part includes a plurality of accuse temperature section, urceolus cover is established on accuse temperature section, the lateral surface of accuse temperature section is equipped with the recess of spiral subsection, the cooperation forms the water conservancy diversion passageway that supplies the conduction oil circulation between recess and the urceolus cover, set up oil inlet and the oil-out with water conservancy diversion passageway intercommunication on the urceolus cover, oil temperature control device passes through the pipeline and is connected with oil inlet and oil-out.

Further, the outer cylinder sleeve is locked on the cylinder main body through screws.

Further, rim charge recovery unit includes first recovery deflector roll and send membrane mechanism, first recovery deflector roll is vertical to be established on the production line, send membrane mechanism to include that the guide fill, retrieve the home roll, retrieve the secondary roller, retrieve the motor and the second retrieves the deflector roll, the guide fill is established at extrusion device's feed end, retrieve the home roll and retrieve the secondary roller and rotate to be connected on the guide fill, it retrieves the home roll rotation to retrieve motor drive, the second is retrieved the deflector roll and is rotated with the guide fill and be connected, and the second is retrieved the deflector roll and is retrieved home roll parallel arrangement.

Furthermore, send membrane mechanism still includes the recovery cylinder, the recovery cylinder level sets up on the guide fill, the both ends of retrieving the secondary roller are connected with the piston rod rotation of retrieving the cylinder.

Furthermore, the both sides of guide fill are equipped with the rotor plate of rotation connection, the deflector roll rotation connection is retrieved to the second in the upper end of rotor plate, retrieve the home roll and rotate the lower extreme of connection at the rotor plate.

Compared with the prior art, beneficial effect lies in:

(1) the utility model discloses simple structure can temper the EVA film earlier, makes the temperature on its surface more even, releases and reduces the internal stress of EVA film simultaneously. And then carrying out cold air setting on the EVA film. The EVA film is prevented from generating stress deformation, and the product quality of the EVA film is effectively improved. And the EVA film is carried through carrying the tiling of net curtain, reducible pulling and dragging to the EVA film, further avoid the product to receive to drag and take place to warp, effectively improve the quality of product.

(2) The utility model discloses a conduction oil heats or cools off the EVA raw materials in to the barrel main part, and it is more accurate to control the temperature to accuse temperature efficiency is higher, promotes the extrusion efficiency of raw materials. In addition, the temperature control by adopting the heat conduction oil has lower power consumption, thereby greatly reducing the production cost.

(3) This novel rim charge after will cutting retrieves the deflector roll through first and retrieve the deflector roll and the direction of second and send into the guide fill in, inside rim charge rethread retrieved the home roll and retrieves the secondary roll and send into extrusion device again in by the guide fill, extrusion device directly heats the rim charge and recycles, avoids the rim charge extravagant. The scrap recovery efficiency is improved, and the labor cost is reduced.

Drawings

Fig. 1 is a schematic view of the appearance structure of the present invention.

Fig. 2 is a schematic structural diagram of the conveying cooling device.

Fig. 3 is a schematic view of the structure of the extrusion apparatus.

Fig. 4 is a partially enlarged view of the area a in fig. 3.

Fig. 5 is a schematic structural view of the scrap recycling device.

In the figure:

an extrusion device-1; a barrel body-11; temperature control section-111; a groove-112; an outer cylinder sleeve-12;

an oil inlet-121; an oil outlet-122; a conveying cooling device-2; a base-21;

a conveying net curtain-22; a conveying section-221; a screen driving device-23; a drive roll-231;

a driving roller-232; a conveying motor-233; a tension roller-234; a tensioning cylinder-235;

-a blowing device-24; a first blowing device-241; a second blowing device-242;

a blower housing-243; an air outlet-244; an air inlet duct-245; -246, a diffuser;

a scrap recovery device-3; a first recovery guide roller-31; a film feeding mechanism-32; a material guide hopper-321;

recovering the main roller-322; a recovery secondary roller-323; a recovery motor-324;

a second recovery guide roller-325; a recovery cylinder-326; rotating the plate-327.

Detailed Description

In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following embodiments.

As shown in fig. 1-5, an EVA solar back sheet film extrusion conveying device includes an extrusion device 1, a conveying cooling device 2 and an edge material recycling device 3; the conveying and cooling device 2 is arranged at the discharge end of the extruding device 1, and the scrap recovery device 3 is arranged at the feed end of the extruding device 1; the conveying and cooling device 2 comprises a base 21, a conveying net curtain 22, a net curtain driving device 23 and a blowing device 24, wherein the conveying net curtain 22 is a polyester net curtain, and the conveying net curtain 22 is provided with uniformly distributed ventilation holes. The net curtain driving device 23 comprises a driving roller 231 and a plurality of driving rollers 232 which are rotatably connected with the base 21, and a conveying motor 233 which drives the driving roller 231 to rotate, the conveying net curtain 22 is wound on the driving roller 231 and the driving rollers 232, and the conveying motor 233 drives the driving roller 231 to rotate, so that the conveying net curtain 22 is driven to move on the base 21. The conveying net curtain 22 is provided with a conveying section 221 for bearing and conveying the thin film, the blowing device 24 is arranged below the conveying section 221, in the embodiment, the blowing device 24 comprises a first blowing device 241 and a second blowing device 242, the first blowing device 241 is arranged below the feeding end of the conveying net curtain 22, the second blowing device 242 is arranged below the discharging end of the conveying net curtain 22, the first blowing device 241 conveys hot air to the front half section of the conveying net curtain 22, and the second blowing device 242 conveys cold air to the rear half section of the conveying net curtain 22. After adopting above-mentioned structure, place fashioned EVA film in the upper end of carrying the web curtain 22, drive the EVA film and carry forward when carrying the web curtain 22 operation, first device 241 that blows out hot-blast, carries out tempering treatment to the EVA film, makes the temperature on EVA film surface more even, releases and reduces the internal stress of EVA film simultaneously. And then the second air blowing device 242 blows out cold air to freeze the EVA film, so that the EVA film is subjected to cold setting, the EVA film is prevented from stress deformation, and the product quality of the EVA film is effectively improved.

Preferably, the blowing device 24 includes a blowing casing 243, an air outlet 244 disposed toward the conveying section 221 is disposed at an upper end of the blowing casing 243, a side wall of the air outlet 244 gradually inclines toward a middle portion from top to bottom, so that the air outlet 244 can be fully distributed below the conveying net 22, an air inlet duct 245 is disposed at a lower end of the blowing casing 243, an air inlet is disposed on the side wall of the air inlet duct 245, the air inlet is connected with an air blower, an obliquely disposed air diffusing baffle 246 is disposed at an upper end of the air inlet duct 245, a vent hole is disposed on the air diffusing baffle 246, and the air diffusing baffle 246 gradually inclines toward an outer side from top to bottom. After the structure is adopted, cold air or hot air is introduced into the air inlet pipeline 245 through the air blower, and the cold air or the hot air is guided through the air dispersing baffle 246 and blown out to two sides of the air outlet 244, so that the air outlet wind power and the temperature of the air outlet 244 are more uniform.

Preferably, the net curtain driving device 23 further comprises a tension roller 234 and a tension cylinder 235, the tension cylinder 235 is disposed on the base 21, two ends of the tension cylinder 235 are rotatably connected with a piston rod of the tension cylinder 235, and an upper end surface of the tension roller 234 abuts against the conveying net curtain 22. With the above arrangement, the tensioning cylinder 235 drives the tensioning roller 234 to move up and down to adjust the tension of the conveyor screen 22.

Preferably, the extrusion device 1 includes a barrel main body 11, an outer barrel sleeve 12 and an oil temperature control device (not shown), an extrusion hole for extruding and conveying an EVA raw material is provided inside the barrel main body 11, the barrel main body 11 includes a plurality of temperature control sections 111 distributed along an axial direction, the outer barrel sleeve 12 is sleeved on the temperature control sections 111, and the outer barrel sleeve 12 and the temperature control sections 111 are connected in a sealing manner, specifically, sealing rings may be provided at front and rear ends of an inner side surface of the outer barrel sleeve 12 to realize a sealing function. The outer side surface of the temperature control section 111 is provided with a groove 112 spirally distributed around an axis, a flow guide channel for heat conduction oil to circulate is formed between the groove 112 and the outer sleeve 12 in a matching manner, the outer sleeve 12 is provided with an oil inlet 121 and an oil outlet 122 which are communicated with the flow guide channel, an oil temperature control device is connected with the oil inlet 121 and the oil outlet 122 through pipelines, and the oil temperature control device can select oil temperature control equipment sold conventionally on the market. After adopting above-mentioned structure, form a closed loop circulation flow path between water conservancy diversion passageway and the oil temperature control equipment, oil temperature controlling means can carry out the oil temperature to the conduction oil that flows in the water conservancy diversion passageway and adjust, and the conduction oil transmits the oil temperature to barrel main part 11 to material in the extrusion hole carries out temperature regulation and control, realizes heating or cooling to the EVA raw materials then.

Preferably, the outer sleeve 12 is locked to the cylinder body 11 by screws. By adopting the structure, the outer cylinder sleeve 12 and the machine cylinder main body 11 are connected more firmly and are more convenient to disassemble and assemble.

Preferably, the rim charge recycling device 3 includes a first recycling guide roller 31 and a film feeding mechanism 32, the first recycling guide rollers 31 are vertically arranged on a station between the film cutting station and the extruding device, the first recycling guide rollers 31 guide and convey the rim charge to the material guide hopper 321 along the vertical direction, and the material guide space can be saved. The film feeding mechanism 32 comprises a material guide hopper 321, a recovery main roller 322, a recovery auxiliary roller 323, a recovery motor 324 and a second recovery guide roller 325, wherein the lower end of the material guide hopper 321 is connected with a material inlet of the extrusion device, the recovery main roller 322 and the recovery auxiliary roller 323 are rotatably connected to the upper end of the material guide hopper 321, the recovery motor 324 is installed on the material guide hopper 321 and drives the recovery main roller 322 to rotate, the edge material is arranged between the recovery main roller 322 and the recovery auxiliary roller 323, and the recovery main roller 322 and the recovery auxiliary roller 323 are mutually attached and rotate so as to feed the edge material into the extrusion device. The second recovery guide roller 325 is rotatably connected with the material guide hopper 321, the second recovery guide roller 325 changes the vertical conveying of the rim charge into horizontal conveying, and the second recovery guide roller 325 and the recovery main roller 322 are arranged in parallel, so that the recovery main roller 322 can convey the rim charge more smoothly. After the structure is adopted, the cut edge materials are pulled to the material guide hopper 321 from a production line, and then the edge materials are sent into the extrusion device by the recovery main roller 322 and the recovery auxiliary roller 323, so that the waste of the edge materials is avoided. In addition, retrieve main roll 322 and rotate through retrieving motor 324 drive, can control the conveying speed of rim charge to make the rim charge carry at the uniform velocity more, avoid the rim charge to carry and block up extrusion device at the excessive speed.

Preferably, the film feeding mechanism 32 further comprises a recovery cylinder 326, the recovery cylinder 326 is horizontally arranged on the material guide hopper 321, and two ends of the recovery sub-roller 323 are rotatably connected with a piston rod of the recovery cylinder 326. After adopting the structure, the recovery cylinder 326 drives the recovery auxiliary roller 323 to move horizontally, so that the distance between the recovery main roller 322 and the recovery auxiliary roller 323 is adjusted to adapt to the thin film scraps with different thicknesses, the recovery main roller 322 and the recovery auxiliary roller 323 can compress the scraps more, the transmission conveying force is improved, and the scraps are prevented from slipping during conveying.

Preferably, rotation plates 327 rotatably connected to both sides of the guide hopper 321 are provided, the second recovery guide roller 325 is rotatably connected to the upper ends of the rotation plates 327, and the recovery main roller 322 is rotatably connected to the lower ends of the rotation plates 327. After adopting above-mentioned structure, can adjust the position of second recovery deflector roll 325 through rotating plate 327 to adjust the tension when the rim charge is carried, make the rim charge carry more steadily.

After adopting above-mentioned structure, extrusion device 1 carries film extrusion moulding, later carries through carrying cooling device 2, carries cooling device 2 and tempers and cools off the film in transportation process, and later the film is sent to cutting device and is cut, and the rim charge after the cutting is retrieved through rim charge recovery unit 3 again and is recycled, avoids extravagant.

Compared with the prior art, beneficial effect lies in:

(1) the utility model discloses simple structure can temper the EVA film earlier, makes the temperature on its surface more even, releases and reduces the internal stress of EVA film simultaneously. And then carrying out cold air setting on the EVA film. The EVA film is prevented from generating stress deformation, and the product quality of the EVA film is effectively improved. And the EVA film is carried through carrying the tiling of net curtain 22, can reduce the pulling and dragging to the EVA film, further avoids the product to receive to drag and takes place to warp, effectively improves the quality of product.

(2) The utility model discloses a conduction oil heats or cools off the EVA raw materials in to barrel main part 11, and it is more accurate to control the temperature to accuse temperature efficiency is higher, promotes the extrusion efficiency of raw materials. In addition, the temperature control by adopting the heat conduction oil has lower power consumption, thereby greatly reducing the production cost.

(3) This novel rim charge after will cutting is retrieved deflector roll 31 and second through first recovery deflector roll 325 direction and is sent into guide fill 321 in, later the rim charge rethread retrieve main roll 322 and retrieve the secondary roller 323 by inside the guide fill 321 re-send into extrusion device 1, extrusion device 1 directly heats the rim charge and recycles, avoids the rim charge extravagant. The scrap recovery efficiency is improved, and the labor cost is reduced.

The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes or modifications made by those skilled in the art should not be construed as departing from the scope of the present invention.

Claims

1. An EVA solar backboard film extrusion conveying device is characterized by comprising an extrusion device, a conveying cooling device and an edge material recovery device; the conveying and cooling device is arranged at the discharge end of the extrusion device, and the scrap recovery device is arranged at the feed end of the extrusion device; carry cooling device and include the base, carry the web curtain, web curtain drive arrangement and blast apparatus, web curtain drive arrangement includes and rotates drive roll and the driving roller of being connected with the base to and drive roll pivoted conveying motor, carry the web curtain around establishing on drive roll and driving roller, carry the web curtain to have the transport section that is used for bearing the weight of the transport film, blast apparatus establishes the below at the transport section.

2. The EVA solar back sheet film extrusion conveying device of claim 1, wherein the blowing device comprises a blowing casing, the upper end of the blowing casing is provided with an air outlet arranged towards the conveying section, the side wall of the air outlet is gradually inclined towards the middle from top to bottom, the lower end of the blowing casing is provided with an air inlet pipeline, the air inlet pipeline is provided with an air inlet on the side wall of the blowing casing, the air inlet is connected with an air blower, the upper end of the air inlet pipeline is provided with an inclined air dispersing baffle plate, the air dispersing baffle plate is provided with vent holes, and the air dispersing baffle plate is gradually inclined towards the outside from top to bottom.

3. The EVA solar backboard film extrusion conveying device according to claim 1, wherein the extrusion device comprises a barrel main body, an outer barrel sleeve and an oil temperature control device, the barrel main body comprises a plurality of temperature control sections, the outer barrel sleeve is sleeved on the temperature control sections, grooves of spiral sections are arranged on the outer side surfaces of the temperature control sections, a flow guide channel for the flow of heat conduction oil is formed between each groove and the outer barrel sleeve in a matched mode, an oil inlet and an oil outlet communicated with the flow guide channel are formed in the outer barrel sleeve, and the oil temperature control device is connected with the oil inlet and the oil outlet through pipelines.

4. The EVA solar back sheet film extrusion conveying apparatus of claim 3, wherein the outer barrel sleeve is locked on the barrel body by screws.

5. The EVA solar back sheet film extrusion conveying device of claim 1, wherein the scrap recovery device comprises a first recovery guide roller and a film feeding mechanism, the first recovery guide roller is vertically disposed on the production line, the film feeding mechanism comprises a material guiding hopper, a recovery main roller, a recovery sub roller, a recovery motor and a second recovery guide roller, the material guiding hopper is disposed at the feeding end of the extrusion device, the recovery main roller and the recovery sub roller are rotatably connected to the material guiding hopper, the recovery motor drives the recovery main roller to rotate, the second recovery guide roller is rotatably connected to the material guiding hopper, and the second recovery guide roller is disposed in parallel to the recovery main roller.

6. The EVA solar back sheet film extrusion conveying device of claim 5, wherein the film feeding mechanism further comprises a recovery cylinder, the recovery cylinder is horizontally arranged on the material guide hopper, and two ends of the recovery sub-roller are rotatably connected with a piston rod of the recovery cylinder.

7. The EVA solar back sheet film extrusion conveying device of claim 6, wherein the guide hopper is provided with rotating plates rotatably connected at both sides thereof, the second recovery guide roller is rotatably connected at upper ends of the rotating plates, and the recovery main roller is rotatably connected at lower ends of the rotating plates.