CN211807817U

CN211807817U - Die head of film blowing machine

Info

Publication number: CN211807817U
Application number: CN201922375429.XU
Authority: CN
Inventors: 刘伟鹏
Original assignee: Shaoxing Lyusida New Material Co ltd
Current assignee: Shaoxing Lyusida New Material Co ltd
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-10-30
Anticipated expiration: 2029-12-25

Abstract

The utility model discloses a film blowing machine die head, which comprises a die sleeve, a die core sleeved in the die sleeve, a die orifice at the upper part of the die sleeve and a feeding end at the lower part of the die sleeve, an annular discharge hole is arranged in the middle of the die orifice, a cushion block is arranged at the central position of the die orifice, a first cylinder which is vertically upward is arranged on the cushion block, a circular material fixing plate is arranged on the first cylinder, the left side and the right side of the upper end of the die orifice are respectively provided with a bracket, the middle of the bracket is vertically provided with a rodless cylinder, a first connecting block is arranged on the side wall of the sliding block in the rodless cylinder sliding rail, which is close to the circular material fixing plate, a second air cylinder is horizontally arranged on the first connecting block, a piston rod of the second air cylinder faces the circular material fixing plate and is connected with the second connecting block, and a material fixer is arranged on the second connecting block, the material fixer is semicircular in shape, and the inner wall of the material fixer can be attached to the outer wall of the circular material fixing plate.

Description

Die head of film blowing machine

Technical Field

The utility model relates to a plastic manufacturing technical field especially relates to a inflation film manufacturing machine die head.

Background

The film blowing machine is a device for heating and melting plastic particles and blowing the plastic particles into a film, wherein a film blowing machine die head is arranged on the film blowing machine and used for blowing the melted plastic particles into the film, and then the film is extruded by a propeller strut, an extrusion roller and the like and then wound by a guide roller and a winding roller so as to complete the processing of the plastic bag.

The film that produces from die orifice department when inflation film manufacturing machine just begins to process plastic granules at every turn needs the staff manual to pull out the film from die orifice department then be fixed in on propeller strut and the guide roll, the film temperature of just extruding from die orifice department is very high, be injured easily when the staff manual pulls out the film, and the staff is very close to die orifice position when the operation, thereby can cause the pollution to die orifice department and lead to follow-up extruded product to receive the quality problem that the pollution influences and produce, the film of extruding from the die orifice is softer in addition and is easily received shaking that the external influence produced and lead to the product wall thickness inhomogeneous.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a thereby can be pulled to die orifice top by automatic when the film is just being extruded from the die orifice and make things convenient for the staff operation and can not cause the pollution to die orifice department, thereby can prevent in addition that the film from rocking the even inflation film manufacturing machine die head of film wall thickness that makes production when the film lasts to extrude.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a inflation film manufacturing machine die head, includes die sleeve, the feed end of die orifice and the die sleeve lower part of locating the inside mold core of die sleeve, die sleeve upper portion of cover, the centre of die orifice is provided with annular discharge gate, the central point of die orifice puts and is provided with the cushion, be provided with vertical ascending cylinder one on the cushion, be provided with circular solid flitch on the cylinder one, the die orifice upper end left and right sides is provided with the support respectively, the vertical rodless cylinder that is provided with in the centre of support, be provided with connecting block one on the lateral wall that the slider in the rodless cylinder slide rail is close to circular solid flitch, connecting block one is improved level and is provided with cylinder two, the piston rod of cylinder two just is connected with connecting block two towards circular solid flitch, be provided with the solidifier on connecting block two, the shape of solidifier is semi-circular and the inner wall can.

Through the technical scheme, when the film blowing machine starts to work to melt plastic particles and then extrude a film from the die orifice, the slide block of the rodless cylinder is controlled to move to the lowest part of the slide rail and the first control cylinder is used for moving the circular material fixing plate to the lowest part, the material fixing device and the circular material fixing plate are located on the same plane at the moment, then the piston rod of the second control cylinder moves forwards to clamp the film which is just extruded between the circular material fixing plate and the material fixing device, after clamping, the second control cylinder and the rodless cylinder are simultaneously controlled to enable the circular material fixing plate and the material fixing device to move upwards to pull out the film from the die orifice, so that further operation of workers is facilitated, the temperature of the film at the moment is reduced, the workers cannot be injured, the distance between the film which is pulled out upwards and the die orifice is far, and the pollution cannot be caused to the die orifice during further operation of.

The utility model discloses still further set up to: the material fixing device is a hollow tube, an air channel is arranged in the material fixing device, a ventilation plate is arranged at the lower end of the material fixing device, the ventilation plate is semicircular in shape, an arc-shaped air port is formed in the bottom of the ventilation plate, an air inlet pipe is arranged on the second connecting block, and the air outlet of the air inlet pipe is communicated with the air inlet of the air channel.

Through the technical scheme, wind in the air inlet pipe is uniformly conveyed to the ventilating board through the air channel, uniform wind is blown out from the arc-shaped air port at the bottom of the ventilating board and blows to the outer wall of the film to cool the film, and the uniform wind can prevent the film from generating violent sloshing to cause uneven wall thickness.

The utility model discloses still further set up to: the upper end of the material fixer is provided with a plurality of adjusting fixing frames along the semicircular arc of the material fixer, the adjusting fixing frames are provided with auxiliary rollers, and the central axes of the auxiliary rollers are parallel to the tangent line of the semicircular arc of the material fixer at the position of the auxiliary rollers.

Through the technical scheme, when the film blowing machine continuously produces the film, the rodless cylinder is controlled to move the material fixing device to a proper height to enable the outer surface of the auxiliary roller to be in contact with the film, the film drives the auxiliary roller to roll in the upward moving process, and the auxiliary roller plays a certain supporting role in the film.

The utility model discloses still further set up to: adjust the mount and include two blocks of curb plates, axis of rotation, two rotation connecting rods and roller shaft, the curb plate is fixed on solid material ware upper surface, the rotatable horizontal connection of axis of rotation is between two blocks of curb plates, the one end of rotation connecting rod is fixed connection both ends about the axis of rotation respectively, the cover is equipped with torsion spring in the axis of rotation, torsion spring's one end fixed connection is on the curb plate, torsion spring keeps away from the one end fixed connection of curb plate on rotating the connecting rod, the rotatable connection of roller shaft is in the centre of two rotation connecting rods keeping away from axis of rotation one end, supplementary gyro wheel sets up on the roller shaft.

Through above-mentioned technical scheme, the position of supplementary gyro wheel can carry out automatically regulated through torsion spring and prevent to cause the destruction to the film when the film rocks, thereby can reduce the range of rocking of film simultaneously and prevent that the inhomogeneous phenomenon of wall thickness from appearing in the film.

The utility model discloses still further set up to: the auxiliary roller is an ABS engineering plastic roller and is spherical.

Through above-mentioned technical scheme, ABS engineering plastics have good heat resistance and dimensional stability is good, and spherical auxiliary roller can roll better on the film, prevents to cause the destruction to the film.

The utility model discloses still further set up to: and a rubber pad is arranged on the side wall of the material fixer, which is close to the circular material fixing plate.

Through above-mentioned technical scheme, the rubber pad can make better the pressing from both sides of film between admittedly glassware and circular solid flitch.

The utility model discloses still further set up to: the upper end of the circular solid material plate is provided with an inverted conical guide plate, the outer wall of the guide plate is provided with a longitudinal gas guide groove, and the lower end of the guide plate is fixedly connected to the edge of the upper end of the circular solid material plate.

Through above-mentioned technical scheme, the film can play guide effect and supporting role to the film at the in-process deflector of rebound, prevents that the film from producing when removing and rocking by a wide margin and appearing the inhomogeneous present of wall thickness, and the air guide groove on the deflector enables the air and passes through between film and the deflector, can prevent on the one hand that the film adhesion is on the deflector, and the air that on the other hand flows can play certain cooling effect to the film.

Drawings

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

FIG. 2 is a schematic structural view of the present invention;

fig. 3 is a side view of the present invention;

fig. 4 is a sectional view taken along the direction G-G in fig. 3 according to the present invention;

FIG. 5 is an enlarged schematic view of the portion A of FIG. 1 according to the present invention;

FIG. 6 is an enlarged schematic view of the portion B of FIG. 1 according to the present invention;

fig. 7 is an enlarged schematic structural view of a portion C in fig. 4 according to the present invention;

fig. 8 is an enlarged schematic view of a portion D in fig. 2 according to the present invention.

The reference numbers in the figures mean: 1. die sleeve; 2. a mold core; 3. a die opening; 4. a feeding end; 5. a discharge port; 6. a circular groove; 7. cushion blocks; 8. a first cylinder; 9. a circular material fixing plate; 10. a guide plate; 11. a gas guide groove; 12. a film; 13. a support; 14. a rodless cylinder; 15. a first connecting block; 16. a second air cylinder; 17. a second connecting block; 18. a material fixer; 19. a rubber pad; 20. an air duct; 21. a ventilation board; 22. an arc tuyere; 23. adjusting the fixing frame; 24. a side plate; 25. a rotating shaft; 26. rotating the connecting rod; 27. a roller shaft; 28. a torsion spring; 29. an auxiliary roller; 30. an air inlet pipe.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

The present invention will be described below with reference to fig. 1 to 8.

The utility model provides a inflation film manufacturing machine die head, including

die sleeve

1, 1 inside mold core 2 of die sleeve is located to the cover, die orifice 3 on die sleeve 1 upper portion and feed end 4 of 1 lower part of die sleeve, the centre of die orifice 3 is provided with annular discharge gate 5, be provided with circular recess 6 in the middle of the annular discharge gate 5, be provided with cushion 7 in the circular recess 6, through vertical ascending cylinder 8 of screw fixedly connected with on the cushion 7, through the circular solid flitch 9 of screw fixedly connected with on the piston rod of cylinder 8, the upper end of circular solid flitch 9 is provided with the deflector 10 of back taper, the lower extreme of deflector 10 passes through screw fixed connection in the upper end edge of circular solid flitch 9, be provided with fore-and-aft air guide groove 11 on the outer wall of deflector 10.

The guide plate 10 can play a role in guiding and supporting the film 12 in the upward movement process of the film 12, the phenomenon that the film 12 greatly shakes to cause uneven wall thickness is prevented when moving, the air guide groove 11 on the guide plate 10 can enable air to pass through between the film 12 and the guide plate 10, on one hand, the film 12 can be prevented from being adhered to the guide plate 10, and on the other hand, flowing air can play a certain cooling role on the film 12.

The left side and the right side of the die orifice 3 are respectively provided with a support 13, the lower end of the support 13 is fixedly connected to the upper surface of the die orifice 3 through screws, a rodless cylinder 14 is vertically arranged in the middle of the support 13, the stroke of a sliding block of the rodless cylinder 14 is 30-40 cm, a first connecting block 15 is fixedly connected to the side wall, close to the circular material fixing plate 9, of the sliding block of the rodless cylinder 14 through screws, a second cylinder 16 is horizontally arranged on the first connecting block 15, a piston rod of the second cylinder 16 faces the circular material fixing plate 9 and is connected to a second connecting block 17 through screws, a material fixing device 18 is arranged on the second connecting block 17, the material fixing device 18 is a hollow tube and is semicircular in shape, a rubber pad 19 which is semicircular in shape is arranged on the side wall, close to the circular material fixing plate 9, and the.

When a film blowing machine starts to work to melt plastic particles and then extrude a film 12 from a die orifice 3, a slide block of a rodless cylinder 14 is controlled to move to the lowest part of a slide rail and a control cylinder I8 to move a circular material fixing plate 9 to the lowest part, and at the moment, a material fixing device 18 and the circular material fixing plate 9 are positioned on the same plane, then a piston rod of a control cylinder II 16 moves forwards to clamp the film 12 which is just extruded between the circular material fixing plate 9 and the material fixing device 18, a rubber pad 19 on the material fixing plate can enable the film 12 to be better clamped between the circular material fixing plate 9 and the material fixing device 18, after clamping, the control cylinder II 16 and the rodless cylinder 14 simultaneously enable the circular material fixing plate 9 and the material fixing device 18 to move upwards to pull the film 12 out from the die orifice 3, so that further operation of workers is facilitated, the temperature of the film 12 at the moment is reduced, no harm is caused to the workers, and the distance between the film, the worker does not cause contamination to the die 3 during further operation.

An air duct 20 is arranged inside the material fixing device 18, an air inlet pipe 30 is arranged on the second connecting block 17, an air outlet of the air inlet pipe 30 is communicated with an air inlet of the air duct 20, the air duct 20 comprises six air supply pipes, one ends of the six air supply pipes, close to the air inlet pipe 30, converge at the air inlet of the air duct 20, a ventilation plate 21 is arranged at the lower end of the material fixing device 18, the ventilation plate 21 is semicircular, an arc-shaped air opening 22 is formed in the bottom of the ventilation plate 21, and one ends, far away from the air inlet pipe 30, of the six air supply pipes are. The wind in the air inlet pipe 30 is uniformly delivered to the ventilation board 21 through the air duct 20, and the uniform wind blows from the arc-shaped wind port 22 at the bottom of the ventilation board 21 and blows to the outer wall of the film 12 to cool the film, so that the uniform wind can prevent the film 12 from generating violent shaking and causing uneven wall thickness.

The upper end of the material fixer 18 is provided with a plurality of adjusting fixing frames 23 along a semicircular arc of the material fixer 18, each adjusting fixing frame 23 comprises two side plates 24, a rotating shaft 25, two rotating connecting rods 26 and a roller shaft 27, the lower ends of the side plates 24 are fixed on the upper surface of the material fixer 18 through screws, the rotating shaft 25 is rotatably and horizontally connected between the two side plates 24, one ends of the rotating connecting rods 26, which are close to the rotating shaft 25, are fixedly connected to the left end and the right end of the rotating shaft 25 through welding respectively, a torsion spring 28 is sleeved on the rotating shaft 25, the torsion spring 28 is positioned between the side plates 24 and the rotating connecting rods 26, one end of the torsion spring 28 is fixedly connected to the side plates 24, one end of the torsion spring 28, which is far away from the side plates 24, is fixedly connected to the rotating connecting rod 26, the torsion spring 28, the roller shaft 27 is rotatably connected between the ends of the two rotating connecting rods 26 far away from the rotating shaft 25, the roller shaft 27 is provided with an auxiliary roller 29, the auxiliary roller 29 is an ABS engineering plastic roller, the shape of the auxiliary roller 29 is spherical, and the central axis of the auxiliary roller 29, namely the tangent line of the semicircular arc of the material fixer 18 at the position of the roller shaft 27 and the auxiliary roller 29, is parallel.

When the film blowing machine is continuously producing the film 12, the rodless cylinder 14 is controlled to move the material fixer 18 to a proper height to enable the outer surface of the auxiliary roller 29 to be in contact with the film 12, the film 12 drives the auxiliary roller 29 to roll in the upward movement process, the auxiliary roller 29 plays a certain supporting role for the film 12, when the film 12 shakes, the position of the auxiliary roller 29 can be automatically adjusted through the torsion spring 28 to prevent the film 12 from being damaged, and meanwhile, the shaking amplitude of the film 12 can be reduced, so that the phenomenon that the wall thickness of the film 12 is uneven is prevented.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations of the above assumption should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a inflation film manufacturing machine die head, includes die sleeve (1), the cover locates die core (2) inside die sleeve (1), die orifice (3) and feed end (4) of die sleeve (1) lower part on die sleeve (1) upper portion, the centre of die orifice (3) is provided with annular discharge gate (5), its characterized in that: a cushion block (7) is arranged at the central position of the die orifice (3), a first cylinder (8) which is vertically upward is arranged on the cushion block (7), a circular material fixing plate (9) is arranged on the first cylinder (8), the left side and the right side of the upper end of the die opening (3) are respectively provided with a bracket (13), a rodless cylinder (14) is vertically arranged in the middle of the support (13), a first connecting block (15) is arranged on the side wall, close to the circular material fixing plate (9), of a sliding block in a sliding rail of the rodless cylinder (14), a second air cylinder (16) is horizontally arranged on the first connecting block (15), a piston rod of the second air cylinder (16) faces the circular material fixing plate (9) and is connected with a second connecting block (17), a material fixer (18) is arranged on the second connecting block (17), the material fixer (18) is semicircular, and the inner wall of the material fixer can be attached to the outer wall of the circular material fixing plate (9).

2. The film blowing machine die head according to claim 1, characterized in that: the material fixing device (18) is a hollow tube, an air duct (20) is arranged inside the material fixing device (18), a ventilation plate (21) is arranged at the lower end of the material fixing device (18), the ventilation plate (21) is semicircular, an arc-shaped air opening (22) is formed in the bottom of the ventilation plate (21), an air inlet pipe (30) is arranged on the second connecting block (17), and the air outlet of the air inlet pipe (30) is communicated with the air inlet of the air duct (20).

3. The film blowing machine die head according to claim 1 or 2, characterized in that: the upper end of the material fixer (18) is provided with a plurality of adjusting fixing frames (23) along the semicircular arc of the material fixer (18), the adjusting fixing frames (23) are provided with auxiliary rollers (29), and the central axis of each auxiliary roller (29) is parallel to the tangent line of the semicircular arc of the material fixer (18) at the position of the corresponding auxiliary roller (29).

4. The film blowing machine die head according to claim 3, characterized in that: the adjusting fixing frame (23) comprises two side plates (24), a rotating shaft (25), two rotating connecting rods (26) and a roller shaft (27), the side plates (24) are fixed on the upper surface of the material fixer (18), the rotating shaft (25) is rotatably and horizontally connected between the two side plates (24), one end of the rotating connecting rod (26) is respectively and fixedly connected with the left end and the right end of the rotating shaft (25), a torsion spring (28) is sleeved on the rotating shaft (25), one end of the torsion spring (28) is fixedly connected to the side plate (24), one end of the torsion spring (28) far away from the side plate (24) is fixedly connected to the rotating connecting rod (26), the roller shaft (27) is rotatably connected between the ends, far away from the rotating shaft (25), of the two rotating connecting rods (26), and the auxiliary roller (29) is arranged on the roller shaft (27).

5. The film blowing machine die head according to claim 3, characterized in that: the auxiliary roller (29) is an ABS engineering plastic roller, and the shape of the auxiliary roller (29) is spherical.

6. The film blowing machine die head according to claim 1, characterized in that: a rubber pad (19) is arranged on the side wall of the material fixer (18) close to the circular material fixing plate (9).

7. The film blowing machine die head according to claim 1, characterized in that: the circular solid material plate is characterized in that an inverted-cone-shaped guide plate (10) is arranged at the upper end of the circular solid material plate (9), a longitudinal air guide groove (11) is formed in the outer wall of the guide plate (10), and the lower end of the guide plate (10) is fixedly connected to the edge of the upper end of the circular solid material plate (9).