Film extension device with slicking mechanism

Abstract

The utility model relates to the technical field of film production, and discloses a film extension device with a slicking mechanism, which comprises a bottom plate, the top end of the bottom plate is respectively provided with a first stop dog, a second stop dog and a base, the inner wall of the first stop dog is rotatably connected with a screw rod through a bearing, and the surface of the screw rod is in threaded connection with a lifting block; the inner wall of the second check block is rotationally connected with a transverse rod through a bearing, a pressing block is arranged on the surface of the transverse rod, and a first scraping piece is arranged at the bottom end of the pressing block. The wiredrawing PET film is scraped to be flat through the first scraping piece and the second scraping piece, bubbles in the wiredrawing PET film are removed, the holding rod and the vertical plate drive the pressing block to rotate clockwise with the cross rod as the circle center, the wiredrawing PET film can be conveniently placed at the top end of the second scraping piece, the torsional spring deforms after loosening the holding rod, and the pressing block is pushed to rotate anticlockwise, so that the wiredrawing PET film is scraped to be flat, and bubbles in the wiredrawing PET film are removed. And the first scraping blade is promoted to be attached to the upper surface of the wiredrawing PET film, and the feeding efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of film production, in particular to a film stretching device with a scraping mechanism. Background Art

[0002] Brushed PET film is a commonly used packaging film that can keep the packaging neat. Brushed PET film is used in foreign trade export, papermaking, hardware, plastic chemicals, building materials, food and medicine industries. Brushed PET film needs to be stretched during processing to avoid wrinkles during use.

[0003] Among them, the "stretching device for thermoplastic plastic film production" disclosed in the application number "CN202121170281.7" "comprises a clamping and traction component and a reeling component, the clamping and traction component comprises an extension workbench and a sleeve, and limit grooves are provided on both sides of the extension workbench, and a movable seat is inserted through the limit grooves, and a cylinder is fixed on the upper end of the movable seat, and a first telescopic rod is inserted through the cylinder. The two limit grooves of the utility model respectively limit the position of a movable seat, and the auxiliary movable seat moves along a straight path to ensure the accuracy of the cylinder moving path. The first telescopic rod cooperates with the second telescopic rod to pull the film positioning seat, and the torsion spring applies a rotational force to the pressing plate to ensure that one side of the film to be stretched is fixed by the pressing block. The film positioning seat is pulled by the telescopic rod to move along the edge of the limit groove, which can prevent the film from wrinkling due to static electricity during stretching, greatly ensuring the stretching effect of the thermoplastic plastic film."

[0004] However, the above method still has the following defects: bubbles are easily generated inside the drawn PET film during the stretching process, thereby reducing the stretching effect. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides a film stretching device with a scraping mechanism, which has the advantage of eliminating bubbles in the film and solves the problems raised by the above-mentioned background technology.

[0006] The utility model provides the following technical solutions: a film extending device with a scraping mechanism comprises a bottom plate, the top of the bottom plate is respectively provided with a first block, a second block and a base, the inner wall of the first block is rotatably connected to a screw via a bearing, the surface of the screw is threadedly connected to a lifting block, the inner wall of the second block is rotatably connected to a cross bar via a bearing, a pressure block is provided on the surface of the cross bar, a first scraper is provided at the bottom end of the pressure block, a sleeve is provided on the front side of the second block, a torsion spring is provided between the sleeve and the pressure block, the torsion spring is sleeved on the outside of the cross bar, a second scraper is provided on the inner wall of the base, and support components are provided on the front and back sides of the base.

[0007] As a preferred technical solution of the utility model, one side of the first stop block is connected to one side of the base, one side of the second stop block is connected to the other side of the base, a turntable is provided at one end of the screw, the surface of the lifting block is slidably connected to the inner wall of the first stop block, the surface of the lifting block is provided with a pressing groove that slides with the surface of the pressing block, one end of the cross bar is rotatably connected to the inner wall of the sleeve through a bearing, a vertical plate is provided at the top of the pressing block, a grip is provided on the front of the vertical plate, two anti-scratch grooves are provided on the surface of the bottom plate, and guide boxes are provided on both sides of the bottom plate.

[0008] As a preferred technical solution of the utility model, the inner walls of the two guide boxes are slidably connected with a movable frame, the surface of the movable frame is provided with a sliding groove, the inner wall of the sliding groove is provided with a sliding rod, the inner wall of the sliding groove is rotatably connected with a bidirectional screw rod through a bearing, and the surface of the bidirectional screw rod is threadedly connected with two splints that slide with the sliding groove through a screw nut.

[0009] As a preferred technical solution of the utility model, the contact part of the movable frame and the base is slidably connected, and a first motor is provided on the surface of the movable frame. The first motor is a forward and reverse motor, and the transmission shaft of the first motor is connected to one end of the bidirectional screw rod.

[0010] As a preferred technical solution of the utility model, the surfaces of the two splints are provided with a first through hole that slides with the sliding rod, the top end of one of the splints and the bottom end of the other splint are provided with anti-slip pads, and the surfaces of the two anti-slip pads are provided with two second through holes.

[0011] As a preferred technical solution of the utility model, the inner wall of one of the guide boxes is rotatably connected to a transmission screw via a bearing, and the contact part of the transmission screw and the movable frame is threadedly connected via a screw nut. A second motor is provided on the front side of one of the guide boxes, and the second motor is a forward and reverse motor, and the transmission shaft of the second motor is connected to one end of the transmission screw.

[0012] As a preferred technical solution of the utility model, the two supporting assemblies each include two connecting seats and two positioning assemblies, the four connecting seats are respectively arranged at the four corners of the top of the bottom plate, and each two corresponding connecting seats are rotatably connected with a first pressure roller and a second pressure roller through a rotating shaft, and two threaded grooves are provided on the surfaces of the two first pressure rollers.

[0013] As a preferred technical solution of the utility model, the four positioning assemblies all include sliding tubes, the four sliding tubes are all arranged on the surface of the corresponding first pressure rollers through thread grooves and internal thread threads, the surfaces of the four sliding tubes are all provided with anti-slip grooves, one ends of the four sliding tubes are rotatably connected to positioning plates through bearings, the surfaces of the four positioning plates are all provided with first sliding holes and second sliding holes, the four first sliding holes are all slidably connected to the contact parts of the two first pressure rollers, and the four second sliding holes are all slidably connected to the contact parts of the two second pressure rollers.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The film extension device with a scraping mechanism scrapes the drawn PET film through the first scraper and the second scraper to remove bubbles in the drawn PET film. The grip rod and the vertical plate drive the pressing block to rotate clockwise with the horizontal bar as the center, so that the drawn PET film is placed on the top of the second scraper. After the grip rod is released, the torsion spring is deformed and pushes the pressing block to rotate counterclockwise, so that the first scraper is attached to the upper surface of the drawn PET film, thereby improving the feeding efficiency.

[0016] 2. The film stretching device with a scraping mechanism positions the two sides of the drawn PET film through two corresponding positioning plates, thereby improving the feeding efficiency. The slide tube is rotated, and the slide tube moves along the surface of the first pressure roller in the direction away from the drawn PET film, thereby increasing the distance between the two corresponding positioning plates, making it easier to position the drawn PET films of different widths and enhancing practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the back structure of the utility model;

[0019] Figure 3 For this utility model Figure 2 A is an enlarged structural diagram;

[0020] Figure 4 It is a schematic diagram of the cross-sectional structure of the utility model;

[0021] Figure 5 It is a schematic diagram of the top cross-sectional structure of the second stopper of the utility model;

[0022] Figure 6 It is a schematic diagram of a top view cross-sectional structure of the support assembly of the utility model;

[0023] Figure 7 It is a schematic diagram of the cross-sectional structure of the mobile frame of the utility model.

[0024] In the figure: 1, bottom plate; 2, base; 3, first stopper; 4, second stopper; 5, support assembly; 501, connecting seat; 502, first pressure roller; 503, second pressure roller; 6, positioning assembly; 601, slide tube; 602, positioning plate; 603, first slide hole; 604, second slide hole; 7, screw; 8, lifting block; 9, cross bar; 10, pressure block; 11, first scraper; 12, sleeve; 13, torsion spring; 14, second scraper; 15, pressure groove; 16, vertical plate; 17, grip rod; 18, anti-scratch groove; 19, guide box; 20, movable frame; 21, slide groove; 22, slide rod; 23, bidirectional screw rod; 24, clamping plate; 25, first motor; 26, transmission screw rod; 27, second motor. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-7 , a film stretching device with a flattening mechanism comprises a bottom plate 1, a first stopper 3, a second stopper 4 and a base 2 are fixedly arranged on the top of the bottom plate 1, the inner wall of the first stopper 3 is rotatably connected with a screw rod 7 through a bearing, a lifting block 8 is threadedly connected to the surface of the screw rod 7, the inner wall of the second stopper 4 is rotatably connected with a cross bar 9 through a bearing, a pressing block 10 is fixedly arranged on the surface of the cross bar 9, a first scraper 11 is fixedly arranged at the bottom end of the pressing block 10, a sleeve 12 is fixedly arranged on the front of the second stopper 4, a torsion spring 13 is fixedly arranged between the sleeve 12 and the pressing block 10, the torsion spring 13 is sleeved on the outside of the cross bar 9, a second scraper 14 is fixedly arranged on the inner wall of the base 2, a supporting assembly 5 is arranged on the front and back of the base 2, the first scraper 11 and the second scraper 14 are respectively attached to the upper surface and the lower surface of the drawn PET film, when the drawn PET film after extension is pulled, the first scraper 11 and the second scraper 14 scrape the drawn PET film flat, which can effectively remove bubbles in the drawn PET film;

[0027] One side of the first stopper 3 is fixedly connected to one side of the base 2, one side of the second stopper 4 is fixedly connected to the other side of the base 2, a turntable is fixedly arranged at one end of the screw rod 7, the surface of the lifting block 8 is slidably connected to the inner wall of the first stopper 3, the surface of the lifting block 8 is provided with a pressing groove 15 which slides with the surface of the pressing block 10, one end of the cross bar 9 is rotatably connected to the inner wall of the sleeve 12 through a bearing, a vertical plate 16 is fixedly arranged on the top of the pressing block 10, a gripping rod 17 is fixedly arranged on the front side of the vertical plate 16, two anti-scratch grooves 18 are provided on the surface of the bottom plate 1, and guide boxes 19 are fixedly arranged on both sides of the bottom plate 1, the screw rod 7 is rotated by the turntable, and the lifting block 8 is limited by the inner wall of the first stopper 3 and cannot rotate, so As the screw 7 rotates and moves in the vertical direction, the upwardly moving lifting block 8 lifts the pressing block 10 and the first scraper 11, so that both hands are freed to adjust the relative position of the second scraper 14 and the drawn PET film. The gripping rod 17 is held and moved, and the pressing block 10 is driven to rotate clockwise around the cross bar 9 through the gripping rod 17 and the vertical plate 16, so that the pressing block 10 is separated from the pressing groove 15, the drawn PET film is pulled, and the drawn PET film is placed on the top of the second scraper 14. The rotating pressing block 10 will compress the torsion spring 13, and the gripping rod 17 is released. The torsion spring 13 is deformed and drives the pressing block 10 to rotate counterclockwise, so that the first scraper 11 is attached to the upper surface of the drawn PET film, thereby improving the feeding efficiency.

[0028] The inner walls of the two guide boxes 19 are slidably connected with a moving frame 20, and a slide groove 21 is opened on the surface of the moving frame 20. A slide rod 22 is fixedly provided on the inner wall of the slide groove 21. The inner wall of the slide groove 21 is rotatably connected with a bidirectional screw rod 23 through a bearing. The surface of the bidirectional screw rod 23 is threadedly connected with two splints 24 that slide with the slide groove 21 through a screw nut. The bidirectional screw rod 23 drives the two splints 24 to move, and the moving directions of the two splints 24 are opposite.

[0029] The movable frame 20 is slidably connected to the contact part of the base 2. A first motor 25 is fixedly provided on the surface of the movable frame 20. The first motor 25 is a forward and reverse motor. The transmission shaft of the first motor 25 is fixedly connected to one end of the bidirectional screw rod 23. The first motor 25 drives the bidirectional screw rod 23 to rotate.

[0030] The surfaces of the two splints 24 are each provided with a first through hole that slides with the sliding rod 22, and anti-skid pads are fixedly provided at the top end of one of the splints 24 and the bottom end of the other splint 24, and two second through holes are provided on the surfaces of the two anti-skid pads. The two splints 24 clamp the brushed PET film through the anti-skid pads, and when the splints 24 move with the movement of the movable frame 20, the two splints 24 pull the brushed PET film to extend the unclamped part. It should be supplemented that two of the second through holes are sleeved on the outside of the sliding rod 22, and the other two second through holes are sleeved on the outside of the bidirectional screw rod 23 to prevent the sliding rod 22 and the bidirectional screw rod 23 from contacting the anti-skid pads.

[0031] The inner wall of one of the guide boxes 19 is rotatably connected to a transmission screw 26 through a bearing, and the contact portion of the transmission screw 26 and the movable frame 20 is threadedly connected through a screw nut. A second motor 27 is fixedly provided on the front side of one of the guide boxes 19. The second motor 27 is a forward and reverse motor. The transmission shaft of the second motor 27 is fixedly connected to one end of the transmission screw 26. The second motor 27 drives the transmission screw 26 to rotate, and the transmission screw 26 drives the movable frame 20 to move.

[0032] The two supporting components 5 each include two connecting seats 501 and two positioning components 6. The four connecting seats 501 are respectively fixedly arranged at the four corners of the top of the bottom plate 1. A first pressing roller 502 and a second pressing roller 503 are rotatably connected between every two corresponding connecting seats 501 through a rotating shaft. Two threaded grooves are provided on the surfaces of the two first pressing rollers 502. The upper surface of the brushed PET film is adhered to by the two first pressing rollers 502, and the lower surface of the brushed PET film is adhered to by the two second pressing rollers 503. Both ends of the brushed PET film are subjected to appropriate external force, so that the middle part of the brushed PET film is straightened and kept horizontal, so that the lower surface of the middle part of the brushed PET film is adhered to the second scraper 14, thereby ensuring the leveling effect of the second scraper 14.

[0033] The four positioning components 6 all include a sliding tube 601, and the four sliding tubes 601 are all arranged on the surface of the corresponding first pressure roller 502 through a thread groove and an internal thread, and the surface of the four sliding tubes 601 is provided with anti-slip grooves, and one end of the four sliding tubes 601 is rotatably connected to a positioning plate 602 through a bearing, and the surface of the four positioning plates 602 is provided with a first sliding hole 603 and a second sliding hole 604, and the four first sliding holes 603 are slidably connected to the contact parts of the two first pressure rollers 502, and the four second sliding holes 604 are slidably connected to the contact parts of the two second pressure rollers 503, and the two sides of the brushed PET film are positioned by the corresponding two positioning plates 602 to improve the feeding efficiency, and the sliding tube 601 is rotated, and the sliding tube 601 moves along the surface of the first pressure roller 502 in the direction away from the brushed PET film, thereby increasing the distance between the corresponding two positioning plates 602, which is convenient for positioning brushed PET films of different widths and enhances practicality.

[0034] When in use, start the second motor 27, the second motor 27 drives the transmission screw 26 to rotate, and the transmission screw 26 drives the movable frame 20 to move. The movable frame 20 will drive the middle part of the clamped drawn PET film to move through the bidirectional screw 23 and the clamping plate 24, and the two clamping plates 24 will pull the drawn PET film through the anti-slip pad, thereby extending the unclamped part of it, and then the second motor 27 drives the transmission screw 26 to rotate in the opposite direction, causing the clamping plate 24 and the anti-slip pad to loosen the drawn PET film, and then the drawn PET film will be pulled by the driving roller of the packaging equipment, so that the drawn PET film passes through the first scraper 11 and the second scraper 14, and the first scraper 11 and the second scraper 14 are respectively attached to the upper surface and the lower surface of the drawn PET film, and when the extended drawn PET film is pulled, the first scraper 11 and the second scraper 14 scrape the drawn PET film flat, which can effectively remove bubbles in the drawn PET film.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A film stretching device with a scraping mechanism, comprising a bottom plate (1), characterized in that: The top of the bottom plate (1) is respectively provided with a first stopper (3), a second stopper (4) and a base (2); the inner wall of the first stopper (3) is rotatably connected to a screw rod (7) via a bearing; the surface of the screw rod (7) is threadedly connected to a lifting block (8); the inner wall of the second stopper (4) is rotatably connected to a cross bar (9) via a bearing; a pressure block (10) is provided on the surface of the cross bar (9); a first scraper (11) is provided at the bottom end of the pressure block (10); a sleeve (12) is provided on the front of the second stopper (4); a torsion spring (13) is provided between the sleeve (12) and the pressure block (10); the torsion spring (13) is sleeved on the outside of the cross bar (9); a second scraper (14) is provided on the inner wall of the base (2); and support components (5) are provided on the front and back of the base (2).

2. The film stretching device with a flattening mechanism according to claim 1, characterized in that: One side of the first stopper (3) is connected to one side of the base (2), and one side of the second stopper (4) is connected to the other side of the base (2). A turntable is provided at one end of the screw rod (7). The surface of the lifting block (8) is slidably connected to the inner wall of the first stopper (3). The surface of the lifting block (8) is provided with a pressing groove (15) that slides with the surface of the pressing block (10). One end of the cross bar (9) is rotatably connected to the inner wall of the sleeve (12) through a bearing. A vertical plate (16) is provided at the top of the pressing block (10), and a gripping rod (17) is provided on the front of the vertical plate (16). Two anti-scratch grooves (18) are provided on the surface of the bottom plate (1), and guide boxes (19) are provided on both sides of the bottom plate (1).

3. The film stretching device with a flattening mechanism according to claim 2, characterized in that: The inner walls of the two guide boxes (19) are slidably connected with a moving frame (20), a sliding groove (21) is provided on the surface of the moving frame (20), a sliding rod (22) is provided on the inner wall of the sliding groove (21), a bidirectional screw rod (23) is rotatably connected to the inner wall of the sliding groove (21) through a bearing, and the surface of the bidirectional screw rod (23) is threadedly connected with two clamping plates (24) that slide with the sliding groove (21) through a screw nut.

4. The film stretching device with a scraping mechanism according to claim 3, characterized in that: The movable frame (20) is slidably connected to the contact portion of the base (2); a first motor (25) is provided on the surface of the movable frame (20); the first motor (25) is a forward and reverse motor; a transmission shaft of the first motor (25) is connected to one end of a bidirectional screw rod (23).

5. The film stretching device with a scraping mechanism according to claim 3, characterized in that: The surfaces of the two clamping plates (24) are each provided with a first through hole that slides with the slide bar (22), the top end of one of the clamping plates (24) and the bottom end of the other clamping plate (24) are each provided with an anti-skid pad, and the surfaces of the two anti-skid pads are each provided with two second through holes.

6. The film stretching device with a scraping mechanism according to claim 2, characterized in that: The inner wall of one of the guide boxes (19) is rotatably connected to a transmission screw (26) via a bearing, and the contact portion of the transmission screw (26) and the movable frame (20) is threadedly connected via a screw nut. A second motor (27) is provided on the front side of one of the guide boxes (19), and the second motor (27) is a forward and reverse motor, and a transmission shaft of the second motor (27) is connected to one end of the transmission screw (26).

7. The film stretching device with a scraping mechanism according to claim 1, characterized in that: The two support assemblies (5) each comprise two connection seats (501) and two positioning assemblies (6); the four connection seats (501) are respectively arranged at the four corners of the top end of the bottom plate (1); a first pressing roller (502) and a second pressing roller (503) are rotatably connected between each two corresponding connection seats (501) via a rotating shaft; and two threaded grooves are provided on the surfaces of the two first pressing rollers (502).

8. The film stretching device with a scraping mechanism according to claim 7, characterized in that: The four positioning components (6) each include a sliding tube (601), and the four sliding tubes (601) are each arranged on the surface of the corresponding first pressing roller (502) through a thread groove and an internal thread, and the surface of the four sliding tubes (601) is each provided with anti-slip grooves, and one end of the four sliding tubes (601) is rotatably connected to a positioning plate (602) through a bearing, and the surface of the four positioning plates (602) is each provided with a first sliding hole (603) and a second sliding hole (604), and the contact portions of the four first sliding holes (603) and the two first pressing rollers (502) are each slidably connected, and the contact portions of the four second sliding holes (604) and the two second pressing rollers (503) are each slidably connected.

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