CN117656412B - Four-layer co-extrusion plastic film extrusion casting forming production device - Google Patents
Four-layer co-extrusion plastic film extrusion casting forming production device Download PDFInfo
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- CN117656412B CN117656412B CN202410136408.5A CN202410136408A CN117656412B CN 117656412 B CN117656412 B CN 117656412B CN 202410136408 A CN202410136408 A CN 202410136408A CN 117656412 B CN117656412 B CN 117656412B
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- 238000001125 extrusion Methods 0.000 title claims abstract description 74
- 238000005266 casting Methods 0.000 title claims abstract description 57
- 229920006255 plastic film Polymers 0.000 title claims abstract description 25
- 239000002985 plastic film Substances 0.000 title claims abstract description 24
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 23
- 230000005540 biological transmission Effects 0.000 claims abstract description 28
- 238000001816 cooling Methods 0.000 claims description 22
- 238000003825 pressing Methods 0.000 claims description 17
- 239000004033 plastic Substances 0.000 claims description 8
- 229920003023 plastic Polymers 0.000 claims description 8
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000010345 tape casting Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 15
- 230000008859 change Effects 0.000 abstract description 11
- 206010066054 Dysmorphism Diseases 0.000 abstract description 6
- 210000001503 joint Anatomy 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 33
- 239000000463 material Substances 0.000 description 10
- 230000009471 action Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000007906 compression Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000009472 formulation Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 238000010025 steaming Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000003000 extruded plastic Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The application relates to the technical field of film production, in particular to a four-layer coextrusion plastic film extrusion casting forming production device. Comprising: a plurality of extruders; one end of the distributor pipeline is connected with the extrusion port of the extruder, the other end of the distributor pipeline is provided with connectors, and channels with the same number as the extruders are arranged in the distributor pipeline; the bearing frame is arranged below the distributor pipeline, and transmission chains are arranged on two sides of the bearing frame; the die head is driven by the transmission chain to approach or be far away from the connector; the annular slide rail is connected with two sides of the die head in a sliding way; the annular slide rail comprises a special-shaped part which is used for guiding the die head to be connected with the connector in an aligned mode. The utility model provides a sliding of die head both sides is provided with annular slide rail, and annular slide rail sets up the automatic butt joint connector of dysmorphism portion guide die head, makes the die head convenient reciprocate under drive chain's drive, installs the die head with the connector and dismantles, has effectively solved the problem that apparatus for producing is difficult to change extrusion die head, has realized the effect that can quick replacement extrusion die head.
Description
Technical Field
The application relates to the technical field of film production, in particular to a four-layer coextrusion plastic film extrusion casting forming production device.
Background
In order to improve the performance of the plastic film and meet different application requirements, a multilayer coextrusion casting method is widely adopted, namely, different plastics or different formulas are extruded by a plurality of extruders, reasonably layered by a batching block, and then cast by a machine head to form a film with a multi-functional multilayer structure; the multilayer coextrusion casting film can realize the characteristics of barrier property, heat resistance, steaming resistance, impact resistance, antistatic property and the like which are difficult to achieve by a single-layer film, and is suitable for the fields of high-end packaging, steaming food, medical supplies and the like.
The four-layer co-extrusion plastic film extrusion casting forming production device is equipment capable of producing a four-layer plastic film, and is characterized in that different plastics or formulas extruded by four extruders are respectively distributed to four layers through a material distribution block, and then extrusion casting forming is carried out through a machine head to form the plastic film with the four-layer structure. The four layers of co-extrusion plastic films can be designed into different hierarchical structures and material combinations according to different purposes and performance requirements so as to realize the required functions and effects.
In the related art, a multifunctional multilayer coextrusion extrusion device is provided in the prior art with the publication number of CN219044106U, the device is characterized in that the extrusion die is respectively in fluid communication with a plurality of extruders through a plurality of metering pumps, the flow rate of the corresponding extruder to the extrusion die is regulated by each metering pump, and the extrusion die extrudes multilayer materials through the die after coextrusion; the suction force is loaded at the suction inlet close to the die, so that the film is tightly attached to the casting roller after being deflected backwards, and sequentially bypasses the casting roller and the cooling roller, and is output after being cooled and shaped by the cooling roller, and the casting film is output by the forming equipment at the moment; however, the thickness of the extrusion of the die is fixed, and the die is difficult to adapt to different extrusion thicknesses;
for convenience in adjusting extrusion thickness, for example, patent of technical publication No. CN218139739U provides a multilayer coextrusion casting device for producing cpp film, which can adjust the gap between a fixed plate and a rotating plate through an adjusting mechanism, so that when raw materials pass through the inside of a groove, the thickness of the extruded film can be changed due to the change of the gap between the fixed plate and the rotating plate, and then the thickness of the film to be extruded can be adjusted.
The above-mentioned prior art scheme is through adjustment mechanism to extruding the effect that the clearance can be realized adjusting extrusion thickness, but extrusion die breaks down or be inconvenient for switch when changing the die head of different length, leads to apparatus for producing to be difficult to in time change extrusion die head.
In view of this, we propose a four-layer coextrusion film extrusion casting production device.
Disclosure of Invention
The utility model aims at providing four layers of coextrusion plastic film extrusion tape casting apparatus for producing, solved the technical problem that apparatus for producing is difficult to change extrusion die, but realized the technological effect of quick replacement extrusion die.
The application provides four-layer coextrusion plastic film extrusion casting forming production device, comprising:
several extruders for extruding the same or different kinds of plastics;
one end of the distributor pipeline is connected with the extrusion port of the extruder, the other end of the distributor pipeline is provided with connectors, channels with the same number as the extruders are arranged in the distributor pipeline, and each channel corresponds to one extruder;
the bearing frame is arranged below the distributor pipeline, and transmission chains are arranged on two sides of the bearing frame;
the die heads are uniformly arranged on the outer sides of the transmission chains and are driven by the transmission chains to approach or be far away from the connectors;
the annular sliding rails are fixedly arranged on two sides of the bearing frame and are in sliding connection with two sides of the die head;
the annular sliding rail comprises a special-shaped part which is used for guiding the die head to be connected with the connector in an aligned mode.
Through adopting above-mentioned technical scheme, drive the die head through drive chain and remove in the outside of bearing frame, make the die head remove one side of connector, along with drive chain continues to drive the die head and remove, the die head slides down in one side of connector along annular slide rail, when the die head slides to dysmorphism portion, dysmorphism portion is with the die head automatic guidance under the connector, make drive chain reverse drive die head upward move this moment, can assemble the die head with the connector each other voluntarily, drive the die head through drive chain when dismantling and move down, make the die head continue to remove along annular slide rail under the effect of dysmorphism portion this moment, make the die head convenient in time change.
As an alternative to the technical solution of the present application, the profiled portion includes:
one end of the sliding rail A is connected to one side, close to the connector, of the annular sliding rail, and the sliding rail A is obliquely arranged;
the middle part of the vertical sliding rail is connected with the other end of the sliding rail A, and the upper end of the vertical sliding rail is closed;
and one end of the sliding rail B is connected with the lower end of the vertical sliding rail, and the other end of the sliding rail B is connected with the annular sliding rail.
Through adopting above-mentioned technical scheme, make the die head slope downwardly moving under slide rail A's effect, after removing certain distance, make the reverse transmission of drive chain drive the die head upwards move, prevent at this moment under spacing subassembly's effect that the die head from sliding along slide rail A, and can only vertically upwards move along vertical slide rail, make drive chain drive the die head automatic with the connector butt joint cooperation, when changing the die head, drive the die head downwardly moving through drive chain, make the die head get into slide rail B's inboard along vertical slide rail, finally move along annular slide rail's inboard, and so on, can change the die head fast through the forward and reverse transmission of control drive chain, make apparatus for producing conveniently in time change the die head.
As an alternative scheme of this application file technical scheme, its characterized in that, slide rail a outside is provided with spacing subassembly, spacing subassembly includes:
the pressing plate is arranged on the outer side of the sliding rail A;
the baffle is arranged on one side of the pressing plate, close to the vertical sliding rail, and is used for blocking the joint of the sliding rail A and the vertical sliding rail;
the sliding column is connected with the pressing plate in an up-and-down sliding manner;
the fixed plate is connected with the sliding column;
and the spring B is sleeved on the outer side of the sliding column between the pressing plate and the fixing plate.
Through adopting above-mentioned technical scheme, when drive chain drives the die head and slides along annular slide rail, the die head drives the sliding pin and slides in annular slide rail's inboard, the clamp plate downwardly sliding is pressed down when the sliding pin slides down in slide rail A inboard, the clamp plate compresses the spring B in the slide column outside this moment, when the sliding pin roll-off slide rail A, spring B promotes the clamp plate and automatic upwards resets, and then stop the junction of slide rail A and vertical slide rail voluntarily, the sliding pin is located the junction of vertical slide rail and slide rail B this moment, drive the die head upwards or the removal down through drive chain can install and dismantle the work voluntarily this moment.
As an alternative of the technical solution of the present application, the die head is connected with the transmission chain through a reset assembly, and the reset assembly includes:
the connecting plate is connected with the transmission chain;
one end of the sliding rod is connected with the die head, and the other end of the sliding rod penetrates through the connecting plate and is connected with the connecting plate in a sliding manner;
and the spring A is sleeved on the outer side of the sliding rod between one end of the sliding rod, which is far away from the die head, and the connecting plate.
Through adopting above-mentioned technical scheme, through slide bar and connecting plate sliding connection, can guarantee that the die head horizontal direction is gone up and is stably slided, when the slide pin is being slided to slide rail A inboard, the die head drives the slide bar and slides at the connecting plate inboard, spring A is in compression state this moment, when the slide pin slides along slide rail B downwards, makes the slide bar drive die head automatic re-setting under spring A's effect, makes the slide pin get into the inboard of annular slide rail along slide rail B, has guaranteed die head switching and moving fluency.
As an alternative scheme of the technical scheme, an adjusting plate is rotatably arranged on the inner side of an extrusion port at the bottom of the die head;
the rotating end of the adjusting plate is provided with a worm wheel, and the outer side of the worm wheel is provided with a worm in a meshed manner;
the worm rotates and sets up in the outside of die head, worm one end is provided with the knob.
Through adopting above-mentioned technical scheme, after the die head is changed, can be according to extruding the extrusion gap adjustment of thickness to extruding the mouth, during the regulation, rotate the worm through the knob, make the worm drive worm wheel rotation, drive the regulating plate through the worm wheel and rotate certain angle to the extrusion thickness of extruding the mouth is adjusted, and has guaranteed the stability after adjusting under the auto-lock effect of worm wheel and worm.
As an alternative scheme of the technical scheme, a casting roller is rotatably arranged on a bearing bracket below the connector, and a cooling roller is arranged on one side of the casting roller, which is close to the die head;
the cooling roller is arranged on the inner side of the bearing frame in a sliding manner.
Through adopting above-mentioned technical scheme, when the material was extruded through the extrusion orifice, the material laminating was in the outside of casting roller, was removed to the casting roller under the drive of casting roller, through cooling down shaping after between chill roll and the casting roller to reach the shaping effect, and can keep away from the casting roller before changing through slidable chill roll, for the change work of die head leaves sufficient space.
As an alternative scheme of the technical scheme, the cooling roller is rotatably arranged on the inner side of a roller frame, and the roller frame is fixedly connected with the driving end of the hydraulic push rod;
the hydraulic push rod is arranged on the inner side of the bearing frame through the supporting plate.
Through adopting above-mentioned technical scheme, when the die head when changing, through the inboard removal of hydraulic push rod drive roller frame to the bearing frame, make the roller frame drive the cooling roller keep away from the bottom of die head, rethread hydraulic push rod drive cooling roller and casting roller mutually support after the die head is accomplished the change.
As an alternative scheme of the technical scheme, a driving sprocket and a driven sprocket are rotatably arranged on two sides of the bearing frame;
the driving chain wheel and the driven chain wheel on two sides are in transmission connection through a transmission chain;
the driving sprocket is arranged at the driving end of the motor, and the motor is arranged at the inner side of the bearing frame.
Through adopting above-mentioned technical scheme, when changing the die head, starter motor drive sprocket rotates, makes drive sprocket pass through drive chain and drives driven sprocket and rotate, and then drives drive chain and drive the die head and dismantle downwards from the connector bottom, and the next die head is located under the connector, upwards removes automatic assembly through reverse operation motor drive die head, makes the die head change more convenient.
As an alternative scheme of the technical scheme, a mounting plate is arranged on the outer side of the annular sliding rail, and a vertical plate is arranged on one side, close to the bearing frame, of the mounting plate;
the mounting plate is connected with the bearing frame through the vertical plate, and the mounting plate is connected with the device support frame.
Through adopting above-mentioned technical scheme, support the bearing frame through annular slide rail, guaranteed the stability of bearing frame, guarantee the smooth transmission of drive chain of bearing frame both sides simultaneously, and annular slide rail passes through mounting panel and device support frame fixed assembly, makes annular slide rail and bearing frame demountable installation to the later maintenance of being convenient for.
By adopting the technical scheme, different plastics or formulations extruded by the four extruders are respectively distributed to four layers by the distributor pipeline, and then the four layers of plastic films with four layers of structures are formed by die head extrusion tape casting, so that the production of the four layers of co-extrusion plastic films is realized.
As an alternative to the technical solution of the present application, the number of the extruders is four.
One or more technical solutions provided in the embodiments of the present application at least have the following technical effects or advantages:
(1) Different plastics or formulas extruded by a plurality of extruders are respectively distributed to a plurality of layers through a distributor pipeline, and then are extruded and cast through a die head to form a plastic film with a multi-layer structure, so that the production of four layers of co-extrusion plastic films is realized;
(2) According to the extrusion die head, the annular sliding rails are arranged on the two sides of the die head in a sliding manner, the special-shaped part is arranged in the annular sliding rails to guide the die head to be automatically positioned at the bottom of the connector, and the die head is driven by the transmission chain to conveniently move up and down so as to conveniently mount and dismount the die head and the connector, so that the problem that the extrusion die head is difficult to replace by a production device is effectively solved, and the effect of rapidly replacing the extrusion die head is realized;
(3) According to the die head and the connecting head, the transmission chains are arranged on the two sides of the bearing frame to drive the die head to move, so that the die head which is replaced and the die head which is replaced can be transferred in time, and the transmission chains drive the die head to move reversely, so that the die head and the connecting head can be assembled with each other conveniently;
(4) This application is through setting up dysmorphism portion guide die head and is slided, makes the die head more convenient with the connector alignment to simple structure, the practicality is higher.
Drawings
FIG. 1 is a schematic diagram showing the overall structure of a four-layer coextrusion film extrusion casting apparatus according to the preferred embodiment of the present invention;
FIG. 2 is a schematic view of a structure of a bearing frame in a four-layer coextrusion film extrusion casting apparatus according to a preferred embodiment of the present invention;
FIG. 3 is a schematic diagram showing the assembly structure of a die in a four-layer coextrusion film extrusion casting apparatus according to the preferred embodiment of the present invention;
FIG. 4 is a schematic view of a circular slide rail in a four-layer co-extruded plastic film extrusion casting apparatus according to a preferred embodiment of the present invention;
FIG. 5 is a schematic view of a platen in a four-layer coextrusion film extrusion casting apparatus according to one embodiment of the present disclosure;
FIG. 6 is a schematic diagram of a die head in a four-layer coextrusion film extrusion casting apparatus according to one embodiment of the present disclosure;
FIG. 7 is a schematic diagram showing an assembly structure of a cooling roller in a four-layer coextrusion film extrusion casting apparatus according to the preferred embodiment of the present invention;
FIG. 8 is a schematic view of a driving chain in a four-layer coextrusion film extrusion casting apparatus according to one embodiment of the present invention;
FIG. 9 is a schematic diagram showing the assembly structure of a casting roll in a four-layer coextrusion film extrusion casting apparatus according to the preferred embodiment of the present invention;
the reference numerals in the figures illustrate:
1. a dispenser duct; 11. a connector; 12. a casting roll; 13. a bearing bracket; 14. a bottom plate; 15. a side plate; 16. an extruder;
2. a bearing frame; 21. a drive chain; 22. a connecting plate; 23. a drive sprocket; 24. a driven sprocket; 25. a motor; 26. a support plate;
3. a die head; 31. a connecting seat; 32. a slide pin; 33. a slide bar; 34. a spring A; 35. an extrusion port; 36. an adjusting plate; 37. a worm wheel; 38. a worm; 39. a knob;
4. an annular slide rail; 41. a sliding rail A; 42. a vertical slide rail; 43. a sliding rail B; 44. a mounting plate; 45. a riser;
5. a pressing plate; 51. a baffle; 52. a spool; 53. a fixing plate; 54. a spring B;
6. a cooling roller; 61. a roller frame; 62. and a hydraulic push rod.
Detailed Description
The present application is described in further detail below in conjunction with the drawings attached to the specification.
Referring to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, the embodiment of the application discloses a four-layer coextrusion plastic film extrusion casting forming production device, including a dispenser pipeline 1, be equipped with in the dispenser pipeline 1 with the passageway of extruder 16 quantity unanimity, every passageway corresponds an extruder 16 the one end of dispenser pipeline 1 is fixed downwards and is provided with connector 11, the fixed bearing frame 2 that is provided with in dispenser pipeline 1 bottom, bearing frame 2 is located one side of connector 11, the bearing frame 2 both sides all are provided with drive chain 21, the drive chain 21 outside evenly is provided with die head 3, the bearing frame 2 both sides all are fixed and are provided with annular slide rail 4, die head 3 slides and sets up between annular slide rail 4, annular slide rail 4 includes dysmorphism portion for guiding die head 3 and connector 11 installation and dismantlement.
The die head 3 is driven to move outside the bearing frame 2 through the transmission chain 21, so that the die head 3 moves to one side of the connector 11, the die head 3 is driven to move along with the transmission chain 21, the die head 3 slides downwards along one side of the connector 11 along the annular sliding rail 4, when the die head 3 slides to the special-shaped part, the special-shaped part automatically guides the die head 3 right below the connector 11, at the moment, the transmission chain 21 reversely drives the die head 3 to move upwards, the die head 3 can be automatically assembled with the connector 11, and when the die head 3 is driven to move downwards through the transmission chain 21 during disassembly, at the moment, the die head 3 is driven to move along the annular sliding rail 4 under the action of the special-shaped part, so that the die head 3 is convenient to replace in time.
Referring to fig. 4 and 5, the profiled portion includes a slide rail a41, a vertical slide rail 42 and a slide rail B43, a slide rail a41 is fixedly provided at one end of the annular slide rail 4, a vertical slide rail 42 is fixedly provided at the other end of the slide rail a41, a slide rail B43 is fixedly provided at the other ends of the slide rail a41 and the vertical slide rail 42, the slide rail B43 is fixedly provided with the other end of the annular slide rail 4, and a limiting assembly is provided at the outer side of the slide rail a 41.
The die head 3 is enabled to move obliquely downwards under the action of the sliding rail A41, after a certain distance is moved, the driving chain 21 is enabled to drive the die head 3 to move upwards in a reverse driving mode, at the moment, the die head 3 is prevented from sliding along the sliding rail A41 under the action of the limiting component and can only move upwards vertically along the vertical sliding rail 42, the driving chain 21 is enabled to drive the die head 3 to be matched with the connector 11 in a butt joint mode, when the die head 3 is replaced, the driving chain 21 is enabled to drive the die head 3 to move downwards, the die head 3 enters the inner side of the sliding rail B43 along the vertical sliding rail 42 and finally moves along the inner side of the annular sliding rail 4, and the die head 3 can be replaced quickly by controlling forward and reverse driving of the driving chain 21, so that the production device is enabled to replace the die head 3 conveniently and timely.
Referring to fig. 4 and 5, the limiting component comprises a pressing plate 5, the pressing plate 5 is arranged at the outer side of a sliding rail a41, a baffle plate 51 is fixedly arranged at one side of the pressing plate 5, which is close to a vertical sliding rail 42, and is used for blocking the joint of the sliding rail a41 and the vertical sliding rail 42, sliding columns 52 are symmetrically arranged at the inner side of the pressing plate 5 in a sliding manner, the sliding columns 52 are fixedly arranged at the top of a fixed plate 53, the fixed plate 53 is fixedly arranged at the outer side of a sliding rail B43, and a spring B54 is arranged between the pressing plate 5 and the fixed plate 53 at the outer side of the sliding column 52;
the outside of the die head 3 is fixedly provided with a connecting seat 31, both sides of the connecting seat 31 are fixedly provided with sliding pins 32, and the sliding pins 32 are arranged on the inner side of the annular sliding rail 4 in a sliding manner.
When the driving chain 21 drives the die head 3 to slide along the annular sliding rail 4, the die head 3 drives the sliding pin 32 to slide on the inner side of the annular sliding rail 4, the pressing plate 5 is pressed down to slide downwards when the sliding pin 32 slides downwards on the inner side of the sliding rail A41, at the moment, the pressing plate 5 compresses the spring B54 on the outer side of the sliding column 52, when the sliding pin 32 slides out of the sliding rail A41, the spring B54 pushes the pressing plate 5 to automatically reset upwards, and then the joint of the sliding rail A41 and the vertical sliding rail 42 is automatically blocked, at the moment, the sliding pin 32 is positioned at the joint of the vertical sliding rail 42 and the sliding rail B43, at the moment, the driving chain 21 drives the die head 3 to move upwards or downwards, and the mounting and dismounting work can be automatically carried out.
Referring to fig. 6 and 8, a connection plate 22 is uniformly provided at the outer side of the driving chain 21;
the connecting seat 31 is provided with the slide bar 33 in a symmetrical and fixed way on one side far away from the die head 3, the slide bar 33 is arranged on the inner side of the connecting plate 22 in a sliding way, the slide bars 33 are all positioned on the outer side of the connecting plate 22, and a spring A34 is arranged on one side, far away from the die head 3, of the connecting plate 22 on the outer side of the slide bar 33.
Through slide bar 33 and connecting plate 22 sliding connection, can guarantee that die head 3 horizontal direction is upwards stable to slide, when slide pin 32 is in the inboard slip of to slide rail A41, die head 3 drives slide bar 33 and is in the inboard slip of connecting plate 22, spring A34 is in the compression state this moment, when slide pin 32 slides down along slide rail B43, make slide bar 33 drive die head 3 automatic re-setting under the effect of spring A34, make slide pin 32 get into the inboard of annular slide rail 4 along slide rail B43, the smoothness of die head 3 switching and removal has been guaranteed.
Referring to fig. 6, an extrusion port 35 is fixedly provided at the bottom of the die head 3, an adjusting plate 36 is rotatably provided at the inner side of the extrusion port 35, a worm wheel 37 is fixedly provided at the rotating end of the adjusting plate 36, a worm 38 is engaged with the outer side of the worm wheel 37, the worm 38 is rotatably provided at the outer side of the die head 3, and a knob 39 is fixedly provided at one end of the worm 38.
When the die head 3 is replaced, the extrusion gap of the extrusion port 35 can be adjusted according to the extrusion thickness, and during adjustment, the worm 38 is rotated through the knob 39, so that the worm 38 drives the worm wheel 37 to rotate, the worm wheel 37 drives the adjusting plate 36 to rotate by a certain angle, the extrusion thickness of the extrusion port 35 is adjusted conveniently, and the stability after adjustment is ensured under the self-locking effect of the worm wheel 37 and the worm 38.
Referring to fig. 1 and 9, the bearing frame 2 is fixedly disposed at the top of the bottom plate 14, the bearing frame 13 is rotatably disposed at both ends of the casting roll 12, the casting roll 12 is disposed at the bottom of the extrusion port 35, the cooling roll 6 is disposed at one side of the casting roll 12 near the extrusion port 35, and the cooling roll 6 is slidably disposed at the inner side of the bearing frame 2.
When the material is extruded through the extrusion port 35, the material is attached to the outer side of the casting roll 12, is driven by the casting roll 12 to move towards the casting roll 12, and is cooled and molded after passing through between the cooling roll 6 and the casting roll 12, so as to achieve a molding effect, and the material can be far away from the casting roll 12 before being replaced by the slidable cooling roll 6, so that a sufficient space is reserved for the replacement work of the die head 3.
Referring to fig. 3 and 7, the cooling roller 6 is rotatably provided at the inner side of the roller frame 61, the roller frame 61 is fixedly connected to the driving end of the hydraulic push rod 62, and the hydraulic push rod 62 is fixedly provided at the inner side of the bearing frame 2 through the support plate 26.
When the die head 3 is replaced, the roller frame 61 is driven to move towards the inner side of the bearing frame 2 through the hydraulic push rod 62, so that the roller frame 61 drives the cooling roller 6 to be far away from the bottom of the die head 3, and when the die head 3 is replaced, the hydraulic push rod 62 drives the cooling roller 6 to be matched with the casting roller 12.
Referring to fig. 7 and 8, both sides of the bearing frame 2 are rotatably provided with a driving sprocket 23 and a driven sprocket 24, the driving sprocket 23 and the driven sprocket 24 on both sides are in transmission connection through a transmission chain 21, the driving sprocket 23 is fixedly arranged at the driving end of a motor 25, and the motor 25 is fixedly arranged at the inner side of the bearing frame 2.
When changing die head 3, starter motor 25 drive sprocket 23 rotates, makes drive sprocket 23 drive driven sprocket 24 through drive chain 21 and rotates, and then drives drive chain 21 and drive die head 3 and dismantle downwards from connector 11 bottom, and the next die head 3 is located after connector 11 directly under, upwards removes automatic assembly through reverse operation motor 25 drive die head 3, makes die head 3 change more convenient.
Referring to fig. 4 and 9, the bearing frame 2 is fixedly disposed on the top of the bottom plate 14 through the annular slide rail 4, a mounting plate 44 is fixedly disposed on the outer side of the annular slide rail 4, a vertical plate 45 is fixedly disposed on one side of the mounting plate 44 close to the bearing frame 2, the mounting plate 44 is fixedly disposed with the bearing frame 2 through the vertical plate 45, and the mounting plate 44 is fixedly disposed on the top of the bottom plate 14 through the side plate 15.
The bearing frame 2 is supported through the annular sliding rail 4, so that the stability of the bearing frame 2 is guaranteed, meanwhile, the transmission chains 21 on two sides of the bearing frame 2 are guaranteed to smoothly transmit, and the annular sliding rail 4 is fixedly assembled with the side plates 15 through the mounting plates 44, so that the annular sliding rail 4 and the bearing frame 2 can be detachably mounted, and further maintenance is facilitated.
Referring to fig. 1 and 9, the other end of the dispenser duct 1 is provided with an extruder 16, the dispenser duct 1 is located at the output end of the extruder 16, the extruders 16 are provided in four, and the extruders 16 are fixedly disposed at the top of the base plate 14.
Different plastics or formulations extruded by the four extruders 16 are respectively distributed to four layers by a distributor pipeline 1, and then are extruded and cast by a die head 3 to form a plastic film with a four-layer structure, so that the production of the four-layer co-extrusion plastic film is realized.
In view of the above, when the four-layer coextrusion plastic film extrusion casting production device disclosed in the embodiment of the application is used, different plastics or formulations extruded by the four extruders 16 are respectively distributed to four layers through the distributor pipeline 1, then are extruded through the extrusion port 35 at the bottom of the die head 3, when materials are extruded through the extrusion port 35, the materials are attached to the outer side of the casting roller 12 and move towards the casting roller 12 under the driving of the casting roller 12, and are cooled and molded after passing through the cooling roller 6 and the casting roller 12, so that a plastic film with a four-layer structure is formed; when the die head 3 is replaced, the roller frame 61 is driven to move towards the inner side of the bearing frame 2 through the hydraulic push rod 62, so that the roller frame 61 drives the cooling roller 6 to be far away from the bottom of the die head 3, a sufficient space is reserved for replacement of the die head 3, then the driving chain wheel 23 is driven to rotate by the starting motor 25, the driving chain wheel 23 drives the driven chain wheel 24 to rotate through the driving chain 21, the driving chain 21 drives the die head 3 to move downwards from the bottom of the connecting head 11, the detached die head 3 drives the sliding pin 32 to slide along the sliding rail B43 in the special-shaped part, at the moment, the sliding rod 33 drives the die head 3 to automatically reset under the action of the spring A34, the sliding pin 32 enters the inner side of the annular sliding rail 4 along the sliding rail B43, the die head 3 continues to move along the annular sliding rail 4, the next die head 3 moves to the inner side of the sliding rail A41 in the special-shaped part, the die head 3 is inclined downwards under the action of the sliding rail A41, at the moment, the die head 3 drives the sliding rod 33 to slide on the inner side of the connecting plate 22, the spring A34 is in a compressed state, the sliding pin 32 slides downwards under the action of the sliding plate 5 on the inner side of the sliding rail A41, the sliding plate 52 slides downwards along the sliding plate B43, and the sliding plate 5 automatically slides downwards under the action of the spring B54 on the sliding pin 52, and automatically slides on the sliding plate 54B 54 on the sliding pin B and is positioned on the vertical sliding rail 42 when the sliding pin and is in the vertical position of the vertical position, and is in compression on the sliding plate 42, and is positioned at the position, and is located at the position, and compressed; then, the motor 25 is operated reversely to drive the driving chain 21 to drive the die head 3 to move upwards along the vertical sliding rail 42, so that the die head 3 is automatically assembled on the outer side of the connector 11.
Claims (8)
1. Four-layer coextrusion plastic film extrusion tape casting apparatus for producing, its characterized in that includes:
several extruders (16) for extruding the same or different types of plastic;
one end of the distributor pipeline (1) is connected with the extrusion port of the extruder (16), the other end of the distributor pipeline is provided with a connector (11), channels with the same number as the extruders (16) are arranged in the distributor pipeline (1), and each channel corresponds to one extruder (16);
the bearing frame (2) is arranged below the distributor pipeline (1), and transmission chains (21) are arranged on two sides of the bearing frame (2);
the die heads (3) are uniformly arranged on the outer sides of the transmission chains (21), and are driven by the transmission chains (21) to approach or separate from the connectors (11);
the annular sliding rails (4) are fixedly arranged on two sides of the bearing frame (2), and the annular sliding rails (4) are in sliding connection with two sides of the die head (3);
the annular sliding rail (4) comprises a special-shaped part which is used for guiding the die head (3) to be aligned and connected with the connector (11);
the profiled portion includes:
one end of the sliding rail A (41) is connected to one side, close to the connector (11), of the annular sliding rail (4), and the sliding rail A (41) is obliquely arranged;
the middle part of the vertical sliding rail (42) is connected with the other end of the sliding rail A (41), and the upper end of the vertical sliding rail is closed;
one end of the sliding rail B (43) is connected with the lower end of the vertical sliding rail (42), and the other end of the sliding rail B is connected with the annular sliding rail (4);
the outside of slide rail A (41) is provided with spacing subassembly, spacing subassembly includes:
a pressing plate (5) arranged outside the slide rail A (41);
the baffle plate (51) is arranged on one side of the pressing plate (5) close to the vertical sliding rail (42) and used for blocking the joint of the sliding rail A (41) and the vertical sliding rail (42);
a slide column (52) which is connected with the pressing plate (5) in an up-and-down sliding way;
a fixed plate (53) connected to the spool (52);
and the spring B (54) is sleeved outside the sliding column (52) between the pressing plate (5) and the fixing plate (53).
2. The four-layer coextrusion film extrusion casting production device according to claim 1, wherein the die head (3) is connected to a drive chain (21) by a reset assembly comprising:
a connecting plate (22) connected with the transmission chain (21);
a slide bar (33), one end of which is connected with the die head (3) and the other end of which passes through the connecting plate (22) and is connected with the connecting plate (22) in a sliding way;
the spring A (34) is sleeved on the outer side of the sliding rod between one end, far away from the die head (3), of the sliding rod (33) and the connecting plate (22).
3. The four-layer coextrusion film extrusion casting production device according to claim 2, wherein an adjusting plate (36) is rotatably arranged inside an extrusion port (35) at the bottom of the die head (3);
the rotating end of the adjusting plate (36) is provided with a worm wheel (37), and a worm (38) is arranged outside the worm wheel (37) in a meshed manner;
the worm (38) is rotatably arranged on the outer side of the die head (3), and a knob (39) is arranged at one end of the worm (38).
4. The four-layer coextrusion plastic film extrusion casting production device according to claim 1, wherein a casting roller (12) is rotatably arranged on a bearing bracket (13) below the connector (11), and a cooling roller (6) is arranged on one side of the casting roller (12) close to the die head (3);
the cooling roller (6) is arranged on the inner side of the bearing frame (2) in a sliding manner.
5. The four-layer coextrusion film extrusion casting production device according to claim 4, wherein the cooling roller (6) is rotatably arranged on the inner side of a roller frame (61), and the roller frame (61) is fixedly connected with the driving end of a hydraulic push rod (62);
the hydraulic push rod (62) is arranged on the inner side of the bearing frame (2) through the supporting plate (26).
6. The four-layer coextrusion film extrusion casting production device according to claim 1, wherein a driving sprocket (23) and a driven sprocket (24) are rotatably arranged on two sides of the bearing frame (2);
the driving chain wheel (23) and the driven chain wheel (24) at two sides are in transmission connection through a transmission chain (21);
the driving sprocket (23) is arranged at the driving end of the motor (25), and the motor (25) is arranged at the inner side of the bearing frame (2).
7. The four-layer coextrusion plastic film extrusion casting production device according to claim 4, wherein a mounting plate (44) is arranged on the outer side of the annular sliding rail (4), and a vertical plate (45) is arranged on one side, close to the bearing frame (2), of the mounting plate (44);
the mounting plate (44) is connected with the bearing frame (2) through a vertical plate (45), and the mounting plate (44) is connected with the device support frame.
8. The four-layer coextruded plastic film extrusion casting production device according to claim 1, characterized in that the number of extruders (16) is four.
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| CN202410136408.5A CN117656412B (en) | 2024-01-31 | 2024-01-31 | Four-layer co-extrusion plastic film extrusion casting forming production device |
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| CN202410136408.5A CN117656412B (en) | 2024-01-31 | 2024-01-31 | Four-layer co-extrusion plastic film extrusion casting forming production device |
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| CN117656412A (en) | 2024-03-08 |
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