CN220883390U - Transverse stretching device for BOPP film production - Google Patents
Transverse stretching device for BOPP film production Download PDFInfo
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- CN220883390U CN220883390U CN202322833733.0U CN202322833733U CN220883390U CN 220883390 U CN220883390 U CN 220883390U CN 202322833733 U CN202322833733 U CN 202322833733U CN 220883390 U CN220883390 U CN 220883390U
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- bopp film
- mounting groove
- film production
- lead screw
- slider
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- 239000011127 biaxially oriented polypropylene Substances 0.000 title claims abstract description 55
- 229920006378 biaxially oriented polypropylene Polymers 0.000 title claims abstract description 55
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 239000012780 transparent material Substances 0.000 claims description 3
- 239000012528 membrane Substances 0.000 abstract description 10
- 230000006835 compression Effects 0.000 abstract description 6
- 238000007906 compression Methods 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 229920002799 BoPET Polymers 0.000 description 15
- 238000011084 recovery Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
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- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
The utility model discloses a transverse stretching device for BOPP film production, which relates to the technical field of BOPP film production and comprises a processing box, wherein a first stretching mechanism and a second stretching mechanism are respectively arranged in the processing box; the first stretching mechanism comprises a sliding seat, a first electric telescopic rod is inserted into the top of the sliding seat, a sleeve column is arranged at the telescopic end of the first electric telescopic rod, a first mounting groove and a second mounting groove are formed in the sleeve column, a limit disc is arranged in the sleeve column in a sliding manner through a spring, a connecting rod is arranged at the bottom end of the limit disc, and a fixing plate is arranged at the bottom end of the connecting rod; the second stretching mechanism comprises a U-shaped plate, a rotating rod is rotatably arranged in the U-shaped plate, and a compression roller is arranged in the middle of the rotating rod; the beneficial effects of the utility model are as follows: when the thickness of BOPP membrane constantly reduces, the fixed plate can be fixed the BOPP membrane continuously under the elastic force of spring, avoids the BOPP membrane to break away from the slide, and the compression roller rolls the extension to the BOPP membrane simultaneously, avoids the inconsistent thickness of BOPP membrane.
Description
Technical Field
The utility model relates to a transverse stretching device, in particular to a transverse stretching device for BOPP film production, and belongs to the technical field of BOPP film production.
Background
The BOPP film is produced by making high molecular polypropylene melt into sheet or thick film through a long and narrow machine head, stretching in two vertical directions (longitudinal direction and transverse direction) at a certain temperature and a set speed in a special stretching machine, and performing proper cooling or heat treatment or special processing (such as corona and coating) to obtain the film, wherein the BOPP film is mainly stretched transversely through a transverse stretching machine.
The transverse stretching device for the PET film disclosed by the application number of CN201721432680.X is also an increasingly mature technology, and comprises a frame, a placing table and a servo stretching mechanism symmetrically arranged along the frame, when the PET film in a high-elastic state is intermittently arranged on the placing table, electromagnetic electricity is obtained and is absorbed by a supporting block, a limiting rod moves downwards to stretch into a limiting hole so as to compress the PET film, then, the servo motor drives a connecting rod fixedly connected with a feed nut to move along the direction deviating from the placing table through a lead screw, the rotating angle of the servo motor is set, the stretching amount of the PET film is accurately controlled, then, an electromagnet is de-energized, a spring drives the electromagnet to reset, the servo motor reversely drives the supporting block to reset, the PET film in the high-elastic state moves forwards for a set distance, and the transverse stretching of the PET film can be completed by repeating the steps. The device has simple structure, and can transversely stretch the PET film, thereby improving the comprehensive mechanical property of the PET film; through further retrieving, "a transverse stretching device of BOPP film production" that wherein application number is "CN202010164104.1" disclosed, it includes square backup pad and installs the film placing roller at square backup pad upper surface, the upper surface of square backup pad is close to film placing roller rear side position department and installs the auxiliary roller, the inside of oven is provided with chain clamp, the upper surface equidistance rigid coupling of oven has four heat recovery components, the below of auxiliary roller still is provided with adjusting part. According to the invention, waste heat in the oven can be recovered and utilized through the heat recovery assembly, cold water in the water storage tank is converted into hot water for use, heat loss is greatly reduced, four heat recovery assemblies are arranged, so that the utilization rate of resources is greatly improved, the installation angle of the film winding roller can be adjusted through the adjusting assembly, the BOPP film is in a tensioning state when passing through the film winding roller, subsequent transverse stretching is facilitated, and the problem that the stretching quality is reduced due to wrinkling or winding of the BOPP film is prevented.
However, the two methods have the following defects in actual use: when stretching the BOPP film, the BOPP film is stressed unevenly, so that the stretched BOPP film is inconsistent in thickness.
Disclosure of utility model
The utility model aims to provide a transverse stretching device for BOPP film production, which is used for solving the problem that the stretched BOPP film thickness is inconsistent in the background art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the transverse stretching device for BOPP film production comprises a processing box, wherein a first stretching mechanism and a second stretching mechanism are respectively arranged in the processing box; the first stretching mechanism comprises a sliding seat, a fixing groove is formed in one side of the sliding seat, a first electric telescopic rod is inserted into the top of the sliding seat, a sleeve column is arranged at the telescopic end of the first electric telescopic rod, the sleeve column is located inside the fixing groove, a first mounting groove and a second mounting groove are formed in the sleeve column, the first mounting groove is located above the second mounting groove, the diameter of the first mounting groove is twice that of the second mounting groove, a limiting disc is slidably arranged in the sleeve column through a spring, the limiting disc and the spring are located inside the first mounting groove, a connecting rod is arranged at the bottom end of the limiting disc, the connecting rod is located inside the second mounting groove, a fixing plate is arranged at the bottom end of the connecting rod, and a rubber pad is arranged at the bottom end of the fixing plate; the second stretching mechanism comprises a U-shaped plate, and a press roller is arranged in the U-shaped plate through rotation of a rotating rod.
As a preferable technical scheme of the utility model, a first sliding rail is arranged on the inner wall of the top end of the processing box, a first screw rod is rotatably arranged in the processing box and positioned in the first sliding rail, the directions of wire grooves at two ends of the first screw rod are opposite, the first screw rod penetrates through one side of the processing box, first sliding blocks are arranged on the surface threads of the first screw rod, two first sliding blocks are arranged, the first sliding blocks are in sliding connection in the first sliding rail, and the first sliding blocks are connected with a sliding seat.
As a preferable technical scheme of the utility model, a second sliding rail and a second screw rod are respectively arranged between the inner walls of the two sides of the processing box, the second screw rod is positioned in the second sliding rail and is rotationally connected with the processing box, the second screw rod penetrates through one side of the processing box, a second sliding block is arranged on the surface thread of the second screw rod, the second sliding block is in sliding connection in the second sliding rail, and the second sliding block is connected with the U-shaped plate.
As a preferable technical scheme of the utility model, the bottom end of the second sliding block is provided with a fixed disc, the bottom end of the fixed disc is provided with a second electric telescopic rod, and the telescopic end of the second electric telescopic rod is connected with the top end of the U-shaped plate.
As a preferable technical scheme of the utility model, the first sliding block is connected with the sliding seat through a connecting column, and the second sliding rail and the second screw rod penetrate through the connecting column.
As a preferable technical scheme of the utility model, a placing plate is arranged at the top of one side of the processing box, a first motor is arranged at the top end of the placing plate, the output end of the first motor is connected with one end of a first screw rod, a second motor is arranged at the bottom end of the placing plate, and the output end of the second motor is connected with one end of a second screw rod.
As a preferable technical scheme of the utility model, the front of the processing box is clamped with a box door, and the box door is made of transparent materials.
Compared with the related art, the transverse stretching device for BOPP film production has the following beneficial effects:
In the tensile in-process, the thickness of BOPP membrane can be continuous reduction, and the fixed plate can be fixed the BOPP membrane continuously under the elastic force of spring, avoids the BOPP membrane to break away from the slide, can roll the extension to the BOPP membrane through the compression roller simultaneously, avoids the inconsistent thickness of BOPP membrane.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of a partial structure of the present utility model;
FIG. 3 is a schematic view of a partial exploded construction of the present utility model;
fig. 4 is a schematic view of a partial cross-sectional structure of the present utility model.
In the figure: 1. a processing box; 2. a first stretching mechanism; 201. a slide; 202. a first electric telescopic rod; 203. a sleeve column; 204. a spring; 205. a connecting rod; 206. a fixing plate; 207. a rubber pad; 208. a first slide rail; 209. a first screw rod; 2010. a first slider; 2011. a connecting column; 2012. a first motor; 2013. a limiting disc; 3. a second stretching mechanism; 301. a U-shaped plate; 302. a second motor; 303. a press roller; 304. a second slide rail; 305. a second screw rod; 306. a second slider; 307. a fixed plate; 308. a second electric telescopic rod; 4. placing a plate; 5. a box door.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, the utility model provides a transverse stretching device for BOPP film production, which comprises a processing box 1, wherein a first stretching mechanism 2 and a second stretching mechanism 3 are respectively arranged in the processing box 1;
The front of the processing box 1 is clamped with a box door 5, the box door 5 is made of transparent materials, the processing box 1 is closed, and the transverse stretching effect of the BOPP film is convenient to observe;
The first stretching mechanism 2 comprises sliding seats 201, two sliding seats 201 are arranged, fixing grooves are formed in one sides of the two sliding seats 201, first electric telescopic rods 202 are inserted into the tops of the two sliding seats 201, sleeve posts 203 are fixedly arranged at telescopic ends of the two first electric telescopic rods 202, the two sleeve posts 203 are located in corresponding fixing grooves, first mounting grooves and second mounting grooves are formed in the two sleeve posts 203, the two first mounting grooves are respectively located above the corresponding second mounting grooves, the diameter of each first mounting groove is twice that of each second mounting groove, limiting discs 2013 are slidably arranged in the two sleeve posts 203 through springs 204, the two limiting discs 2013 and the corresponding springs 204 are located in the corresponding first mounting grooves, connecting rods 205 are fixedly arranged at the bottom ends of the two limiting discs 2013, the two connecting rods 205 are located in the corresponding second mounting grooves, fixing plates 206 are fixedly arranged at the bottom ends of the two connecting rods 205, rubber pads 207 are fixedly arranged at the bottom ends of the two fixing plates 206, and then the BOPP film is transversely stretched;
The inner wall at the top end of the processing box 1 is fixedly provided with a first sliding rail 208, a first screw rod 209 is rotatably arranged in the processing box 1 and positioned in the first sliding rail 208, the directions of wire grooves at two ends of the first screw rod 209 are opposite, the first screw rod 209 penetrates through one side of the processing box 1, first sliding blocks 2010 are arranged on the surface threads of the first screw rod 209, two first sliding blocks 2010 are arranged and are in sliding connection in the first sliding rail 208, and the two first sliding blocks 2010 are respectively connected with corresponding sliding seats 201 to control the two sliding seats 201 to move;
Specifically, firstly, two ends of a BOPP film are respectively placed into the fixing groove, then the first electric telescopic rod 202 is opened, the first electric telescopic rod 202 drives the fixing plate 206 to move downwards, after the rubber pad 207 contacts with the BOPP film, the spring 204 is extruded until the fixing plate 206 contacts with the sleeve 203, then the first electric telescopic rod 202 is closed, the first motor 2012 is started, the first motor 2012 drives the first screw rod 209 to rotate, the two sliding seats 201 are far away from each other, the BOPP film is transversely stretched, and when the thickness of the BOPP film is reduced, the fixing plate 206 continuously fixes the BOPP film under the elastic action force of the spring 204, so that the BOPP film is prevented from being separated from the sliding seats 201.
The second stretching mechanism 3 comprises a U-shaped plate 301, a press roller 303 is arranged in the U-shaped plate 301 through rotation of a rotating rod, and the BOPP film is rolled and extended to ensure that the thickness of the BOPP film is consistent;
A second sliding rail 304 and a second screw rod 305 are respectively arranged between the inner walls of the two sides of the processing box 1, the second sliding rail 304 is fixedly connected with the inner walls of the two sides of the processing box 1, the second screw rod 305 is positioned in the second sliding rail 304 and is rotationally connected with the processing box 1, the second screw rod 305 penetrates through one side of the processing box 1, a second sliding block 306 is arranged on the surface thread of the second screw rod 305, the second sliding block 306 is in sliding connection in the second sliding rail 304, the second sliding block 306 is connected with the U-shaped plate 301, and the compression roller 303 is controlled to move on the surface of the BOPP film;
The bottom end of the second sliding block 306 is fixedly provided with a fixed disc 307, the bottom end of the fixed disc 307 is fixedly provided with a second electric telescopic rod 308, the telescopic end of the second electric telescopic rod 308 is fixedly connected with the top end of the U-shaped plate 301, and the distance between the press roller 303 and the inner wall of the bottom end of the processing box 1 is controlled to control the stretching thickness of the PET film;
The two first sliding blocks 2010 and the corresponding sliding seats 201 are fixedly connected through connecting columns 2011, and the second sliding rail 304 and the second screw rod 305 penetrate through the two connecting columns 2011 to connect the first sliding blocks 2010 with the sliding seats 201;
A placing plate 4 is fixedly arranged at the top of one side of the processing box 1, a first motor 2012 is fixedly arranged at the top end of the placing plate 4, the output end of the first motor 2012 is fixedly connected with one end of a first screw rod 209, a second motor 302 is fixedly arranged at the bottom end of the placing plate 4, the output end of the second motor 302 is fixedly connected with one end of a second screw rod 305, and the first screw rod 209 and the second screw rod 305 are driven to rotate;
Specifically, the second electric telescopic rod 308 is started first, the distance between the press roller 303 and the inner wall of the bottom end of the processing box 1 is adjusted, the stretching thickness of the PET film is controlled, then the second motor 302 is started, the second motor 302 drives the second screw rod 305 to rotate, and then the press roller 303 is driven to roll and extend the PET film, so that the consistency of the thickness of the PET film is ensured.
When the BOPP film stretching machine is used, firstly, the box door 5 is taken down, then two ends of the BOPP film are respectively placed into the inside of the fixed groove, then the first electric telescopic rod 202 is opened, the first electric telescopic rod 202 drives the fixed plate 206 to move downwards, after the rubber pad 207 is contacted with the BOPP film, the spring 204 is extruded until the fixed plate 206 is contacted with the sleeve column 203, then the first electric telescopic rod 202 is closed, then the box door 5 is clamped with the processing box 1, then the second electric telescopic rod 308 is opened, the distance between the compression roller 303 and the inner wall of the bottom end of the processing box 1 is adjusted, the stretching thickness of the PET film is controlled, then the first motor 2012 is started, the first motor 2012 drives the first screw 209 to rotate, the two sliding seats 201 are separated from each other, the BOPP film is transversely stretched, meanwhile, the second motor 302 drives the second screw 305 to rotate, further drives the compression roller 303 to roll and extend the PET film, the thickness of the PET film is consistent, and when the thickness of the BOPP film is continuously reduced, the fixed plate 206 continuously fixes the BOPP film under the elastic acting force of the spring 204, and the BOPP film is prevented from being separated from the BOPP film 201.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The transverse stretching device for BOPP film production comprises a processing box (1), and is characterized in that a first stretching mechanism (2) and a second stretching mechanism (3) are respectively arranged in the processing box (1);
The first stretching mechanism (2) comprises a sliding seat (201), a fixing groove is formed in one side of the sliding seat (201), a first electric telescopic rod (202) is inserted into the top of the sliding seat (201), a sleeve column (203) is arranged at the telescopic end of the first electric telescopic rod (202), the sleeve column (203) is located in the fixing groove, a first mounting groove and a second mounting groove are formed in the sleeve column (203), the first mounting groove is located above the second mounting groove, the diameter of the first mounting groove is twice that of the second mounting groove, a limiting disc (2013) is slidably arranged in the sleeve column (203) through a spring (204), the limiting disc (2013) and the spring (204) are located in the first mounting groove, a connecting rod (205) is arranged at the bottom end of the limiting disc (2013), the connecting rod (205) is located in the second mounting groove, a fixing plate (206) is arranged at the bottom end of the connecting rod (205), and a rubber pad (207) is arranged at the bottom end of the fixing plate (206).
The second stretching mechanism (3) comprises a U-shaped plate (301), and a press roller (303) is arranged in the U-shaped plate (301) through rotation of a rotating rod.
2. A transverse stretching apparatus for BOPP film production according to claim 1, wherein: the inner wall on processing case (1) top is equipped with first slide rail (208), the inside rotation of processing case (1) is equipped with first lead screw (209), and is located the inside of first slide rail (208), the silk groove opposite direction at first lead screw (209) both ends, one side of processing case (1) is run through to first lead screw (209), the surface screw thread of first lead screw (209) is equipped with first slider (2010), first slider (2010) are provided with two, first slider (2010) are at the inside sliding connection of first slide rail (208), first slider (2010) are connected with slide (201).
3. A transverse stretching apparatus for BOPP film production according to claim 2, wherein: second slide rail (304) and second lead screw (305) are equipped with respectively between the inner wall of processing case (1) both sides, second lead screw (305) are located the inside of second slide rail (304) to rotate with processing case (1) and be connected, one side of processing case (1) is run through to second lead screw (305), the surface screw thread of second lead screw (305) is equipped with second slider (306), second slider (306) are at the inside sliding connection of second slide rail (304), second slider (306) are connected with U template (301).
4. A transverse stretching apparatus for BOPP film production according to claim 3, wherein: the bottom of second slider (306) is equipped with fixed disk (307), the bottom of fixed disk (307) is equipped with second electric telescopic handle (308), the flexible end of second electric telescopic handle (308) is connected with the top of U template (301).
5. A transverse stretching apparatus for BOPP film production according to claim 3, wherein: the first sliding block (2010) is connected with the sliding seat (201) through a connecting column (2011), and the second sliding rail (304) and the second screw rod (305) penetrate through the connecting column (2011).
6. A transverse stretching apparatus for BOPP film production according to claim 3, wherein: the top of processing case (1) one side is equipped with places board (4), the top of placing board (4) is equipped with first motor (2012), the output of first motor (2012) is connected with the one end of first lead screw (209), the bottom of placing board (4) is equipped with second motor (302), the output of second motor (302) is connected with the one end of second lead screw (305).
7. A transverse stretching apparatus for BOPP film production according to claim 1, wherein: the front clamping of the processing box (1) is provided with a box door (5), and the box door (5) is made of transparent materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322833733.0U CN220883390U (en) | 2023-10-23 | 2023-10-23 | Transverse stretching device for BOPP film production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322833733.0U CN220883390U (en) | 2023-10-23 | 2023-10-23 | Transverse stretching device for BOPP film production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220883390U true CN220883390U (en) | 2024-05-03 |
Family
ID=90841007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322833733.0U Active CN220883390U (en) | 2023-10-23 | 2023-10-23 | Transverse stretching device for BOPP film production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220883390U (en) |
-
2023
- 2023-10-23 CN CN202322833733.0U patent/CN220883390U/en active Active
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