CN221212725U - Biaxially oriented polypropylene (BOPP) film bidirectional uniform stretching device - Google Patents
Biaxially oriented polypropylene (BOPP) film bidirectional uniform stretching device Download PDFInfo
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- CN221212725U CN221212725U CN202322915239.9U CN202322915239U CN221212725U CN 221212725 U CN221212725 U CN 221212725U CN 202322915239 U CN202322915239 U CN 202322915239U CN 221212725 U CN221212725 U CN 221212725U
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- connecting rods
- biaxially
- bopp
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- film
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- 239000011127 biaxially oriented polypropylene Substances 0.000 title claims abstract description 40
- 230000002457 bidirectional effect Effects 0.000 title claims description 5
- 229920006378 biaxially oriented polypropylene Polymers 0.000 claims abstract description 30
- 238000005192 partition Methods 0.000 claims description 18
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 5
- 230000000670 limiting effect Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 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 biaxially-oriented polypropylene (BOPP) film biaxially-oriented uniform stretching device, which relates to the technical field of BOPP film processing and comprises a working frame, a clamping assembly and a biaxially-oriented stretching assembly, wherein: the clamping assembly comprises a moving plate and two connecting rods, wherein the moving plate is vertically and movably arranged on the working frame, the two connecting rods are oppositely arranged, and one ends of the two connecting rods are hinged to the moving plate. According to the utility model, through the arrangement of the upper clamping block and the lower clamping block, the clamping area with adjustable size is formed between the upper clamping block and the lower clamping block, the end parts of the BOPP film can be clamped and fixed by utilizing the clamping area, and meanwhile, in the process that the moving plate drives the two connecting rods to move downwards, namely, in the process that the end parts of the BOPP film are clamped by utilizing the clamping area, the two connecting rods are mutually far away from each other, the two upper clamping blocks can respectively tension the two end parts of the BOPP film, so that the effect of limiting and fixing the BOPP film is good.
Description
Technical Field
The utility model relates to the technical field of BOPP film processing, in particular to a BOPP film bidirectional uniform stretching device.
Background
Biaxially oriented polypropylene (BOPP) films are generally multilayer co-extruded films, which are produced by co-extruding polypropylene particles to form sheets and stretching the sheets in both the longitudinal and transverse directions. Because of the orientation of the stretching molecules, the film has better physical stability, mechanical strength and air tightness, higher transparency and glossiness, toughness and wear resistance, is a printing film with wide application, generally has the thickness of 20-40 mu m and the most widely applied thickness of 20 mu m.
Through retrieving, patent document (grant bulletin number is CN 209999679U) discloses a polyimide film biaxial stretching machine, which comprises a workbench, the top of workstation is provided with multiunit backup pad, and the inboard of multiunit backup pad all rotates and is connected with the driving roller, first motor is installed to one end of backup pad, and the output and the driving roller rotation of first motor are connected, the intermediate position department at workstation top installs the cylinder, the top of cylinder is connected with the supporting seat, the inboard rotation of supporting seat is connected with the tensioning roller, one side at workstation top is provided with the fixing base, the inboard of fixing base is provided with the spout, the pneumatic cylinder is installed to one side that is close to the fixing base inside the workstation, the output of pneumatic cylinder is connected with the drive plate that extends to the spout inside, the top of the drive plate inboard is connected with the cutter, one side of cutter is provided with the fixed block, the bottom of fixed block is connected with the spring beam, one side that the workstation is close to the fixing base is fixed with the connecting seat, the inboard rotation of connecting seat is connected with the wind-up roller, the one end of connecting seat installs the motor, and the output and the second motor of connecting seat rotate with the second roller.
When the stretching machine is used, the two-way stretching machine mainly stretches the polyimide film by means of the mutual matching of the motor and the multiple groups of driving rollers, but the stretching rollers are utilized to move upwards or downwards to apply the stretching force to the film to different extents.
Therefore, we propose a biaxially oriented polypropylene (BOPP) film biaxially-oriented uniform stretching device for solving the above problems.
Disclosure of utility model
(One) solving the technical problems
In the prior art, the tensioning roller moves upwards or downwards to apply tensioning forces to the film to different degrees, but as the limiting parts are not applied to the two ends of the film, the whole position of the film can be driven to deviate to a certain extent by the upward or downward movement of the tensioning roller, namely the tensioning effect of the tensioning roller on the film is poor, and the use is inconvenient.
(II) technical scheme
In order to solve the problems, the utility model provides the following technical scheme:
BOPP film biaxially-oriented uniform stretching device, including work frame, clamping assembly and biaxially-oriented stretching assembly, wherein:
The clamping assembly comprises a moving plate and two connecting rods, wherein the moving plate is vertically and movably arranged on a working frame, the two connecting rods are oppositely arranged, one ends of the two connecting rods are hinged to the moving plate, an elastic piece which is used for enabling the two connecting rods to have a mutual approaching rotation trend is arranged between the two connecting rods, a partition plate is arranged on the working frame, and a clamping area with adjustable size is formed between the other ends of the two connecting rods and the partition plate;
the two-way stretching assembly comprises a movable support and a first driving piece, wherein the movable support is movably arranged on the partition board, two stretching rollers are rotatably arranged on the movable support, the first driving piece is arranged on the partition board, and the first driving piece is used for driving the movable support to move.
As a further scheme of the utility model: the two connecting rods are fixedly arranged at one ends of the connecting rods, far away from the movable plate, of the upper clamping blocks, the two lower clamping blocks are fixedly arranged on the partition plate, the two lower clamping blocks are respectively arranged in one-to-one correspondence with the two upper clamping blocks, and the clamping areas are formed between the two upper clamping blocks and the corresponding lower clamping blocks.
As a further scheme of the utility model: the elastic piece comprises a reset spring, and two ends of the reset spring are respectively and fixedly arranged on the two connecting rods.
As a further scheme of the utility model: the first driving piece comprises a driving motor and a threaded rod, the driving motor is fixedly arranged on the partition board, the threaded rod is rotatably arranged on the partition board and is in transmission connection with the driving motor, and the movable support is sleeved on the threaded rod in a threaded mode.
As a further scheme of the utility model: the working frame is provided with a second driving piece, the second driving piece comprises an electric push rod, the electric push rod is fixedly arranged on the working frame, and the moving plate is fixedly connected with a piston rod of the electric push rod.
As a further scheme of the utility model: the side that goes up the clamp splice and is close to each other with lower clamp splice is provided with recess and convex part to recess and convex part size looks adaptation.
(III) beneficial effects
Compared with the prior art, the utility model has the following beneficial effects:
Through the setting of last clamp splice and lower clamp splice, go up the clamp splice and form the clamping area of size adjustable down between the clamp splice, utilize this clamping area can carry out the centre gripping with the tip of BOPP film fixed, simultaneously, at the in-process that the movable plate drove two connecting rods and descend, also utilize the clamping area to carry out the in-process of centre gripping with the BOPP film tip promptly, the rotation that two connecting rods kept away from each other can make two last clamp splice carry out the tensioning with the both ends portion of BOPP film respectively for the BOPP film is spacing fixed effectual.
Drawings
The utility model is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic elevational view of the present utility model;
FIG. 2 is a schematic diagram showing the front view of the upper and lower clamping blocks of the present utility model;
Fig. 3 is a schematic diagram showing the front view of the upper clamping block and the lower clamping block in the present utility model.
In the figure: 1. a work frame; 2. a moving plate; 3. a connecting rod; 4. a partition plate; 5. a movable support; 6. a stretching roller; 7. an upper clamping block; 8. a lower clamping block; 9. a return spring; 10. a driving motor; 11. a threaded rod; 12. an electric push rod; 13. a groove; 14. a convex portion; 15. BOPP film.
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.
As shown in fig. 1-3, the BOPP film biaxially-oriented uniform stretching device includes a working frame 1, a clamping assembly for clamping two ends of a BOPP film 15, and a biaxially-oriented stretching assembly for stretching the clamped BOPP film 15, wherein:
The clamping assembly comprises a movable plate 2 and two connecting rods 3, wherein the movable plate 2 is vertically movably arranged on a working frame 1, the two connecting rods 3 are oppositely arranged, one ends of the two connecting rods are hinged to the movable plate 2, an elastic piece which is used for enabling the two connecting rods 3 to have a mutual approaching rotation trend is arranged between the two connecting rods 3, a partition plate 4 is arranged on the working frame 1, and a clamping area with adjustable size is formed between the other ends of the two connecting rods 3 and the partition plate 4. In order to improve the clamping effect of the clamping area on the BOPP film 15, an upper clamping block 7 can be fixedly arranged at one end, far away from the movable plate 2, of each of the two connecting rods 3, two lower clamping blocks 8 are fixedly arranged on the partition plate 4, the two lower clamping blocks 8 are respectively arranged in one-to-one correspondence with the two upper clamping blocks 7, and the clamping area is formed between the two upper clamping blocks 7 and the corresponding lower clamping blocks 8.
Under normal conditions, the upper clamping block 7 is located above the corresponding lower clamping block 8, the state can be represented by fig. 2, when the BOPP film 15 needs to be clamped by the upper clamping block 7 and the lower clamping block 8, the moving plate 2 can be driven to move downwards, the downward movement of the moving plate 2 can drive the two connecting rods 3 to move downwards until the upper clamping block 7 at the bottom of the connecting rods 3 abuts against the lower clamping block 8, the connecting rods 3 can rotate along with the continuous descending of the moving plate 2, the upper clamping block 7 can move along with the rotation of the connecting rods 3 until the upper clamping block 7 is completely pressed on the lower clamping block 8, the state can be represented by fig. 3, before the process, one end of the BOPP film 15 is placed on a clamping area, and then the process can enable the end of the BOPP film 15 to be clamped and fixed, so that the subsequent stretching treatment of the BOPP film 15 is facilitated. In the process that the movable plate 2 drives the two connecting rods 3 to move downwards, the two connecting rods 3 are mutually far away from each other to rotate, so that the two upper clamping blocks 7 respectively press against the corresponding lower clamping blocks 8, simultaneously, the tensioning of the BOPP film 15 can be realized, and the clamping limiting effect of the BOPP film 15 is ensured.
In the process that two connecting rods 3 keep away from each other, the elastic component can be stretched, and then when movable plate 2 goes up, under the effect of elastic component, two connecting rods 3 can carry out the self-resetting, the going on of the clamping work of being convenient for next time. Specifically, the elastic member may be provided to include a return spring 9, and both ends of the return spring 9 are fixedly installed on the two connecting rods 3, respectively.
For the setting of well biaxially oriented subassembly, biaxially oriented subassembly includes movable support 5 and first driving piece, and movable support 5 movable mounting is on baffle 4 to movable support 5 goes up to rotate and installs two stretching rollers 6, and first driving piece sets up on baffle 4, and first driving piece is used for driving movable support 5 and removes. In the process of clamping the BOPP film 15 through the two clamping areas, the BOPP film 15 is attached to the two stretching rollers 6, and then the first driving piece can be utilized to drive the two stretching rollers 6 to move downwards, and the two stretching rollers 6 can move downwards to realize the biaxial stretching of the BOPP film 15.
For the setting of first driving piece, first driving piece includes driving motor 10 and threaded rod 11, and driving motor 10 fixed mounting is on baffle 4, and threaded rod 11 rotates to be installed on baffle 4 to threaded rod 11 is connected with driving motor 10 transmission, and movable support 5 thread bush is established on threaded rod 11. When the driving motor 10 is started, the rotation of the output shaft of the driving motor 10 can drive the threaded rod 11 to rotate, so that the movable support 5 can move downwards, and the downward movement of the movable support 5 can drive the two stretching rollers 6 to move downwards, so that stretching of the BOPP film 15 is realized. Of course, in the present embodiment, the driving motor 10 and the threaded rod 11 are not limited to be matched, and the driving motor may be an electric telescopic rod in the prior art, and the movable bracket 5 may be driven to move by using the electric telescopic rod.
In order to realize the movement of the moving plate 2, a second driving piece may be provided on the working frame 1, the second driving piece includes an electric push rod 12, the electric push rod 12 is fixedly installed on the working frame 1, and the moving plate 2 is fixedly connected with a piston rod of the electric push rod 12, and the electric push rod 12 may be used to realize the up-and-down movement of the moving plate 2.
In this embodiment, in order to improve the clamping effect of the clamping area on the BOPP film 15, a groove 13 and a protrusion 14 may be disposed on one side of the upper clamping block 7 and the lower clamping block 8, where the sizes of the groove 13 and the protrusion 14 are adapted, and further in the state shown in fig. 1, the groove 13 of the upper clamping block 7 and the protrusion 14 of the lower clamping block 8 may well clamp and limit the end of the BOPP film 15.
The foregoing describes one embodiment of the present utility model in detail, but the description is only a preferred embodiment of the present utility model and should not be construed as limiting the scope of the utility model. All equivalent changes and modifications within the scope of the present utility model are intended to be covered by the present utility model.
Claims (6)
- BOPP film biaxially-oriented uniform stretching device, which is characterized by comprising a working frame (1), a clamping assembly and a biaxially-oriented stretching assembly, wherein:The clamping assembly comprises a movable plate (2) and two connecting rods (3), wherein the movable plate (2) is vertically and movably arranged on a working frame (1), the two connecting rods (3) are oppositely arranged, one ends of the two connecting rods are hinged to the movable plate (2), an elastic piece for enabling the two connecting rods (3) to have a mutual approaching rotation trend is arranged between the two connecting rods (3), a partition plate (4) is arranged on the working frame (1), and a clamping area with adjustable size is formed between the other ends of the two connecting rods (3) and the partition plate (4);The bidirectional stretching assembly comprises a movable support (5) and a first driving piece, wherein the movable support (5) is movably arranged on the partition board (4), two stretching rollers (6) are rotatably arranged on the movable support (5), the first driving piece is arranged on the partition board (4), and the first driving piece is used for driving the movable support (5) to move.
- 2. The biaxially-oriented polypropylene (BOPP) film bidirectional uniform stretching device according to claim 1, wherein one ends of the two connecting rods (3) far away from the movable plate (2) are fixedly provided with upper clamping blocks (7), the partition plate (4) is fixedly provided with two lower clamping blocks (8), the two lower clamping blocks (8) are respectively arranged in one-to-one correspondence with the two upper clamping blocks (7), and the clamping areas are formed between the two upper clamping blocks (7) and the corresponding lower clamping blocks (8).
- 3. The biaxially oriented polypropylene (BOPP) film biaxially-oriented uniform drawing device according to claim 2, wherein the elastic member comprises a return spring (9), and both ends of the return spring (9) are respectively fixedly mounted on the two connecting rods (3).
- 4. The biaxially-oriented polypropylene (BOPP) film biaxially-oriented uniform drawing device according to claim 3, wherein the first driving member comprises a driving motor (10) and a threaded rod (11), the driving motor (10) is fixedly mounted on the partition plate (4), the threaded rod (11) is rotatably mounted on the partition plate (4), the threaded rod (11) is in transmission connection with the driving motor (10), and the movable support (5) is sleeved on the threaded rod (11) in a threaded manner.
- 5. The biaxially oriented polypropylene (BOPP) film biaxially-oriented uniform drawing device according to claim 4, wherein the working frame (1) is provided with a second driving member, the second driving member comprises an electric push rod (12), the electric push rod (12) is fixedly mounted on the working frame (1), and the moving plate (2) is fixedly connected with a piston rod of the electric push rod (12).
- 6. The biaxially oriented polypropylene (BOPP) film biaxially-oriented uniform drawing device according to claim 5, wherein the upper clamping block (7) and the lower clamping block (8) are provided with a groove (13) and a protrusion (14) on the side close to each other, and the groove (13) is matched with the protrusion (14) in size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322915239.9U CN221212725U (en) | 2023-10-27 | 2023-10-27 | Biaxially oriented polypropylene (BOPP) film bidirectional uniform stretching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322915239.9U CN221212725U (en) | 2023-10-27 | 2023-10-27 | Biaxially oriented polypropylene (BOPP) film bidirectional uniform stretching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221212725U true CN221212725U (en) | 2024-06-25 |
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ID=91565160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322915239.9U Active CN221212725U (en) | 2023-10-27 | 2023-10-27 | Biaxially oriented polypropylene (BOPP) film bidirectional uniform stretching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221212725U (en) |
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2023
- 2023-10-27 CN CN202322915239.9U patent/CN221212725U/en active Active
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