CN209756058U - Scutching device of plastic film tentering machine - Google Patents

Abstract

The utility model discloses a plastic film stenter's scutching device relates to stenter's technical field, aims at solving the not good problem of traditional stenter scutching effect, and its technical scheme main points are: including fixed setting in two bases on ground, set up respectively in the frame of two bases, the base is provided with the adjustment mechanism who is used for adjusting the frame angle, the frame bottom slides and connects in adjustment mechanism, the both ends of frame are rotated respectively and are provided with drive sprocket and driven sprocket, drive sprocket and driven sprocket are connected with the driving chain, the drive sprocket is connected with the motor, the lateral wall of driving chain is connected with a plurality of drive blocks, the drive block is connected with fixture, the position that the frame is located the driving chain upper end is provided with the control assembly who is used for controlling the fixture switching. The utility model discloses a plastic film stenter's scutching device has the effectual advantage of scutching.

Description

Scutching device of plastic film tentering machine

Technical Field

The utility model belongs to the technical field of the technique of tentering machine and specifically relates to a plastic film tentering machine's scutching device is related to.

Background

Heat-shrinkable films are used in the sale and transportation of various products and their primary function is to stabilize, cover and protect the product. The shrink film must have high puncture resistance, good shrink properties and a certain shrink stress. During the shrinking process, the film is not able to create holes. In the production and processing process of the film, PVC liquid is extruded and molded, and the film is preliminarily molded after preliminary sizing by a compression roller and a cooling roller. Then the film is sent into a tenter for tentering stretching, a thicker film is stretched into a thinner film, and the size of the film is increased.

In the existing tenter, clips are generally used when a film is tentered, and both sides of the film are clipped by the clips, and then the clips on both sides move outward in the process of transferring, so that the film is stretched towards both sides.

The tenter in the prior art has the problem of poor tentering effect.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a plastic film stenter's scutching device has the effectual advantage of tentering.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

The utility model provides a plastic film tentering frame's scutching device, including fixed set up in two bases on ground, set up respectively in the frame of two bases, the base is provided with the adjustment mechanism who is used for adjusting the frame angle, the frame bottom slides and connects in adjustment mechanism, the both ends of frame are rotated respectively and are provided with drive sprocket and driven sprocket, drive sprocket and driven sprocket are connected with the driving chain, drive sprocket is connected with the motor, the lateral wall of driving chain is connected with a plurality of drive blocks, the drive block is connected with fixture, the position that the frame is located the driving chain upper end is provided with the control assembly who is used for controlling the fixture switching.

Through adopting above-mentioned technical scheme, under adjustment mechanism's drive, the rotation of certain angle can take place for the frame to adjust the size that forms the contained angle between two frames, and then change the degree of expansion of film, drive sprocket and driven sprocket through the motor and rotate, thereby drive the driving chain and rotate, and then drive block and fixture and rotate along with the driving chain, fixture is used for grasping the border of film, thereby drive the film and convey forward, and can reduce the damage to the film border through fixture.

The utility model discloses further set up to: frame one end is rotated through the pivot of vertical setting and is connected in the base, adjustment mechanism is including the regulating plate that is fixed in the base the regulating plate has seted up the adjustment tank, the adjustment tank is the arc that uses the pivot as the centre of a circle to set up, the caulking groove that supplies the regulating plate embedding is seted up to the frame, be provided with the sliding plate that slides in the adjustment groove in the caulking groove.

through adopting above-mentioned technical scheme, when needs carry out angle modulation to the frame, rotate the free end of frame for the frame revolutes the rotation of axes, and the sliding plate slides along the adjustment tank simultaneously, plays certain guide effect to the frame, through seting up the caulking groove, makes the regulating plate slide to inlay and establishes in the caulking groove, guarantees that the lower surface of frame laminates with the base upper surface all the time.

The utility model discloses further set up to: adjustment mechanism is provided with the locating component who is used for the frame location, locating component includes fixed connection in the locating plate of frame, a plurality of location screw hole along adjustment tank side and arc distribution is seted up on the adjustment plate surface, positioning bolt is worn to be equipped with by the locating plate screw thread, positioning bolt passes the locating plate and connects in location screw hole.

Through adopting above-mentioned technical scheme, when adjusting the frame to suitable angle through adjustment mechanism, positioning bolt aligns with a certain location screwed hole, screws up positioning bolt in the threaded hole of location this moment, realizes the fixed to the frame, guarantees the rigidity of frame to improve the stability of structure.

The utility model discloses further set up to: fixture is including fixed the lower plate that sets up in the drive block and be the level setting, still including rotating the punch holder that connects in the drive block, the punch holder by with lower plate closed state rotate to with lower plate vertical state, be provided with the torsional spring between punch holder and the drive block, exert the orientation through the torsional spring to the punch holder and deviate from lower plate direction pivoted power.

Through adopting above-mentioned technical scheme, when the drive chain drives the lower plate and rotates supreme half section, the lower plate is the level to the film is located the top of lower plate, simultaneously under control assembly's effect, moves the upper plate rotation downwards, makes the upper plate rotate downwards to press from both sides the film tight on the lower plate, realizes pressing from both sides tightly of film, later drives the film and conveys forward under the effect of drive chain.

The utility model discloses further set up to: the control assembly comprises a pressing plate fixedly arranged on the rack, the lower surface of the pressing plate is connected with a pressing assembly, and steering parts are arranged at two ends of the pressing plate.

Through adopting above-mentioned technical scheme, when drive chain drives punch holder and lower plate and rotates to the clamp plate below, because the punch holder is vertical state under the drive of torsional spring, the punch holder at this moment at first with the portion butt that turns to at clamp plate both ends to rotate gradually under the guide effect of the portion that turns to and press from both sides tight closed state with the lower plate, and then press from both sides the film tightly.

The utility model discloses further set up to: the turning part is an arc-shaped plate connected to two ends of the pressing plate, and the arc-shaped plate is abutted to the upper clamping plate in a vertical state and guides the upper clamping plate to a clamping state.

Through adopting above-mentioned technical scheme, when the punch holder is located the lower half part of drive chain, be under the drive of torsional spring with lower plate vertically state, drive the punch holder at the drive chain and turn to when the top by the below, the punch holder of vertical state at first with turn to the portion butt, owing to turn to the portion and be the arc setting, consequently play the guide effect to the punch holder to press from both sides tight closed state with the lower plate.

The utility model discloses further set up to: and rubber sheets are arranged on the inner walls of the upper clamping plate and the lower clamping plate.

Through adopting above-mentioned technical scheme, when punch holder and lower plate pressed from both sides the film tightly, the upper and lower surface of film all contacted with the sheet rubber, because the frictional force of sheet rubber is great, consequently the sheet rubber is bigger to the frictional force of film, can prevent to a certain extent that film from dropping in punch holder and the lower plate, guarantees the stability of structure in the data send process.

To sum up, the utility model discloses a beneficial technological effect does:

1. the film edge clamping device comprises a frame, a driving chain, a driving block, a clamping mechanism, a film conveying mechanism and a film conveying mechanism, wherein the frame can rotate at a certain angle under the driving of an adjusting mechanism, so that the size of an included angle formed between the two frames is adjusted, the expansion degree of the film is changed, the driving chain wheel and a driven chain wheel are driven to rotate through a motor, so that the driving chain is driven to rotate, a driving block and the clamping mechanism are driven to rotate along with the driving chain, the clamping mechanism is used for clamping the edge of the film, so that the film;

2. When the frame needs to be angularly adjusted, the free end of frame is rotated for the frame revolutes the rotation of axes, and the sliding plate slides along the adjustment tank simultaneously, plays certain guide effect to the frame, through seting up the caulking groove, makes the regulating plate slip to inlay and establishes in the caulking groove, guarantees that the lower surface of frame is laminated with the base upper surface all the time.

drawings

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

fig. 2 is a partial structural schematic diagram of the present invention;

FIG. 3 is an enlarged view of the portion A of FIG. 2;

Fig. 4 is a cross-sectional view of the adjustment mechanism of the present invention.

In the figure, 1, a frame; 2. a drive sprocket; 3. a driven sprocket; 4. a drive chain; 5. a motor; 6. a drive block; 7. a clamping mechanism; 8. a control component; 9. a lower splint; 10. an upper splint; 11. pressing a plate; 12. a compression assembly; 13. a steering section; 14. a guide post; 15. briquetting; 16. a pinch roller; 17. a buffer spring; 18. a rubber sheet; 19. rubbing edges; 20. a base; 21. an adjustment mechanism; 22. a positioning assembly; 23. an adjustment groove; 24. caulking grooves; 25. a sliding plate; 26. positioning a plate; 27. positioning the threaded hole; 28. and (6) positioning the bolt.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, in order to disclose the open-width device of a plastic film tenter of the present invention, the open-width device comprises a frame 1 arranged on both sides, a driving sprocket 2 and a driven sprocket 3 rotatably arranged on both ends of the frame 1, and a driving chain 4 connected to the driving sprocket 2 and the driven sprocket 3, wherein the driving sprocket 2 is connected with a motor 5, the side wall of the driving chain 4 is connected with a plurality of driving blocks 6, the driving blocks 6 are connected with clamping mechanisms 7, and a control component 8 for controlling the clamping mechanisms 7 to open and close is arranged at the position of the frame 1 on the upper end of the driving chain 4; drive sprocket 2 and driven sprocket 3 through motor 5 and rotate to drive driving chain 4 and rotate, and then drive driving block 6 and fixture 7 and rotate along with driving chain 4, fixture 7 is used for grasping the border of film, thereby drives the film and conveys forward, and can reduce the damage to the film border through fixture 7.

As shown in fig. 1 and 3, the clamping mechanism 7 includes a lower clamp plate 9 welded and fixed to the driving block 6 and horizontally disposed, and further includes an upper clamp plate 10 rotatably connected to the driving block 6 through a rotating shaft, the upper clamp plate 10 can rotate from a closed state with the lower clamp plate 9 to a state perpendicular to the lower clamp plate 9, a torsion spring is disposed between the upper clamp plate 10 and the driving block 6, and a force rotating in a direction away from the lower clamp plate 9 is applied to the upper clamp plate 10 through the torsion spring; when the driving chain 4 drives the lower clamp plate 9 to rotate to the upper half section, the lower clamp plate 9 is horizontal, and the film is located the top of lower clamp plate 9, simultaneously under the effect of control assembly 8, moves the upper clamp plate 10 downwards rotatory, makes the upper clamp plate 10 rotate downwards to press from both sides the film tightly on lower clamp plate 9, realizes the clamp of film tightly, later drives the film and conveys forward under the effect of driving chain 4.

As shown in fig. 1 and 3, the control assembly 8 includes a pressing plate 11 fixedly disposed on the frame 1, a pressing assembly 12 is connected to a lower surface of the pressing plate 11, and two ends of the pressing plate 11 are provided with turning portions 13; when drive chain 4 drives punch holder 10 and lower plate 9 and rotates to clamp plate 11 below, because punch holder 10 is vertical state under the drive of torsional spring, punch holder 10 at this moment at first with the 13 butts of turning to the portion at 11 both ends of clamp plate to rotate gradually under the guide effect of turning to portion 13 and press from both sides tight closed state with lower plate 9, and then press from both sides the film tightly.

As shown in fig. 3, the pressing assembly 12 includes a guide post 14 fixedly connected to the lower surface of the pressing plate 11, and a pressing block 15 slidably sleeved on the guide post 14, and a pressing wheel 16 is rotatably connected to the bottom of the pressing block 15; when the upper clamping plate 10 rotates to be abutted against the pressing wheel 16, the upper clamping plate 10 is gradually compressed to be closed with the lower clamping plate 9 under the action of the pressing wheel 16, and the pressing block 15 can slide to a certain degree relative to the guide column 14 to play a certain buffering role.

As shown in fig. 3, the guide post 14 is sleeved with a buffer spring 17, one end of the buffer spring 17 abuts against the lower surface of the pressing plate 11, and the other end abuts against the upper surface of the pressing block 15; when the pressing wheel 16 is abutted to the upper clamping plate 10, the pressing block 15 slides upwards along the guide post 14, meanwhile, the buffering spring 17 is extruded, and under the action of the buffering spring 17, the effect of shock absorption and buffering is achieved.

As shown in fig. 3, the turning part 13 is an arc-shaped plate connected to both ends of the pressing plate 11, and the arc-shaped plate abuts against the upper clamp plate 10 in a vertical state and guides the upper clamp plate 10 to a clamped state; when the punch holder 10 is located the lower half part of drive chain 4, be under the drive of torsional spring with lower plate 9 vertically state, drive punch holder 10 at drive chain 4 and turn to the time of top by the below, the punch holder 10 of vertical state at first with turn to 13 butts, owing to turn to 13 arc settings of portion, consequently play the guide effect to punch holder 10 to press from both sides tight closed state with lower plate 9.

As shown in fig. 3, the inner walls of the upper clamping plate 10 and the lower clamping plate 9 are provided with the rubber sheet 18, when the upper clamping plate 10 and the lower clamping plate 9 clamp the film, the upper surface and the lower surface of the film are both contacted with the rubber sheet 18, and the friction force of the rubber sheet 18 to the film is larger due to the larger friction force of the rubber sheet 18, so that the film can be prevented from falling off from the upper clamping plate 10 and the lower clamping plate 9 to a certain extent, and the stability of the structure in the conveying process is ensured.

Only the transverse friction rib 19 is arranged on the inner wall of the rubber sheet 18, and the friction force between the rubber sheet 18 and the film is further increased by arranging the friction rib 19, so that the clamping fastness is further improved.

As shown in fig. 2 and 4, in order to realize the adjustment of the spreading angle of the film in the conveying process, two parallel bases 20 are arranged on the ground, an adjusting mechanism 21 is arranged on each of the two bases 20, the two frames 1 are respectively arranged on the two adjusting mechanisms 21, and a positioning assembly 22 for positioning the frames 1 is further arranged on the adjusting mechanisms 21; under adjustment mechanism 21's drive, certain angle's rotation can take place for frame 1 to adjust the size that forms the contained angle between two frames 1, and then change the expansion degree of film, after the angle modulation with frame 1 through adjustment mechanism 21 arrives suitable angle, fix a position frame 1 through locating component 22, thereby fix frame 1 in specific position.

As shown in fig. 4, one end of the frame 1 is rotatably connected to the base 20 through a longitudinally arranged rotating shaft, the adjusting mechanism 21 includes an adjusting plate fixed to the base 20, the adjusting plate is provided with an adjusting groove 23, the adjusting groove 23 is formed in an arc shape with the rotating shaft as a circle center, the frame 1 is provided with an embedding groove 24 for the adjusting plate to be embedded in, and a sliding plate 25 sliding in the adjusting groove 23 is arranged in the embedding groove 24; when the angle of the rack 1 needs to be adjusted, the free end of the rack 1 is rotated, so that the rack 1 rotates around the rotating shaft, meanwhile, the sliding plate 25 slides along the adjusting groove 23, a certain guiding effect is achieved on the rack 1, the adjusting plate is embedded in the embedding groove 24 in a sliding mode through the arrangement of the embedding groove 24, and the lower surface of the rack 1 is enabled to be attached to the upper surface of the base 20 all the time.

As shown in fig. 2, the positioning assembly 22 includes a positioning plate 26 fixedly connected to the frame 1, the surface of the adjusting plate is provided with a plurality of positioning threaded holes 27 distributed along the side of the adjusting groove 23 in an arc shape, a positioning bolt 28 is threaded through the positioning plate 26, and the positioning bolt 28 passes through the positioning plate 26 and is connected in the positioning threaded hole 27; when adjusting frame 1 to suitable angle through adjustment mechanism 21, positioning bolt 28 aligns with a certain location screw hole 27, screws up positioning bolt 28 this moment in the location screw hole 27, realizes the fixed to frame 1, guarantees the rigidity of frame 1 to improve the stability of structure.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (7)

1. An opening device of a plastic film tenter, characterized in that: including fixed setting in two bases (20) on ground, set up respectively in frame (1) of two bases (20), base (20) are provided with adjustment mechanism (21) that are used for adjusting frame (1) angle, frame (1) bottom slides and connects in adjustment mechanism (21), the both ends of frame (1) are rotated respectively and are provided with drive sprocket (2) and driven sprocket (3), drive sprocket (2) and driven sprocket (3) are connected with driving chain (4), drive sprocket (2) are connected with motor (5), the lateral wall of driving chain (4) is connected with a plurality of drive blocks (6), drive block (6) are connected with fixture (7), frame (1) are located the position of driving chain (4) upper end and are provided with control assembly (8) that are used for controlling fixture (7) switching.

2. the tenter device of a plastic film tenter according to claim 1, characterized in that: frame (1) one end is rotated through the pivot of vertical setting and is connected in base (20), adjustment mechanism (21) are including the regulating plate that is fixed in base (20) adjustment groove (23) have been seted up to the regulating plate, adjustment groove (23) are to use the pivot to set up as the arc of centre of a circle, caulking groove (24) that supply the regulating plate embedding are seted up in frame (1), be provided with sliding plate (25) that slide in adjustment groove (23) in caulking groove (24).

3. The tenter device of a plastic film tenter according to claim 2, characterized in that: adjustment mechanism (21) are provided with locating component (22) that are used for fixing a position frame (1), locating component (22) are including fixed connection in locating plate (26) of frame (1), a plurality of positioning screw hole (27) along adjustment tank (23) side and arc distribution are seted up to the adjustment plate surface, positioning bolt (28) are worn to be equipped with by locating plate (26) screw thread, positioning bolt (28) pass locating plate (26) and connect in positioning screw hole (27).

4. The tenter device of a plastic film tenter according to claim 1, characterized in that: fixture (7) are including fixed lower plate (9) that sets up in drive block (6) and be the level setting, still including rotating upper plate (10) of connecting in drive block (6), upper plate (10) by with lower plate (9) closed state rotate to with lower plate (9) vertical state, be provided with the torsional spring between upper plate (10) and drive block (6), apply orientation to upper plate (10) through the torsional spring and deviate from lower plate (9) direction pivoted power.

5. the tenter device of a plastic film tenter according to claim 4, characterized in that: the control assembly (8) comprises a pressing plate (11) fixedly arranged on the rack (1), the lower surface of the pressing plate (11) is connected with a pressing assembly (12), and steering parts (13) are arranged at two ends of the pressing plate (11).

6. The tenter device of a plastic film tenter according to claim 5, characterized in that: the turning part (13) is arc-shaped plates connected to two ends of the pressing plate (11), and the arc-shaped plates are abutted to the upper clamping plate (10) in a vertical state and guide the upper clamping plate (10) to a clamping state.

7. The tenter device of a plastic film tenter according to claim 6, characterized in that: and rubber sheets (18) are arranged on the inner walls of the upper clamping plate (10) and the lower clamping plate (9).