Air duct flow adjusting mechanism

Abstract

The utility model discloses an air duct flow regulating mechanism, which relates to the technical field of film forming machines and comprises an air ring, a plurality of air ducts are annularly arranged on the air ring, and a regulating block is arranged above an air inlet of each air duct. The adjusting blocks move horizontally and can control the size of the air inlets of the corresponding air channels. The positioning assembly is arranged on the outer side of the air ring and can rotate around the outer side wall of the air ring. The adjusting assembly is arranged on the positioning assembly and can move to the position above the air inlet of any air duct along with the positioning assembly, and the adjusting assembly can drive the adjusting block at the position of the air inlet of the air duct to move. The air duct flow adjusting mechanism provided by the utility model is simpler in structure and does not occupy too much installation space.

Description

TECHNICAL FIELD

[0001] The utility model relates to a film forming machine technical field especially relates to a wind channel flow regulation mechanism. BACKGROUND

[0002] The blowing film machine is used for the processing equipment that blows into the film after the plastic is heated and melts, and the film blown through the die head and the air ring is usually cylindrical film, then gets the sheet film finished product with two layer structures after the compression. The air ring is provided with a plurality of intervals, and each interval is provided with a wind channel, in the blow molding method, the more the number of wind channels, the more uniform the air volume, and the more uniform the film thickness; when the air volume of the wind channel is uneven, it will cause the problem of uneven thickness of the film; therefore, when blowing film, it is necessary to adjust the plurality of wind channels on the air ring and control the flow.

[0003] However, the adjustment mode known to the inventor generally adopts one adjustment mechanism corresponding to each wind channel, and each wind channel is adjusted one by one, because a plurality of adjustment mechanisms need to be set, so that the overall structure is complex, and more wind channels cannot be provided around the air ring due to the limitation of the plurality of adjustment mechanisms, otherwise the space for installing the adjustment mechanism will not be provided. In order to arrange more wind channels and adjust the flow of the plurality of wind channels respectively, therefore, it is urgent to design a technical scheme with simpler structure and without occupying too much installation space. UTILITARY MODEL CONTENT

[0004] The utility model aims at providing a kind of wind channel flow regulation mechanism to solve the problems existing in the prior art, with simpler structure and without occupying too much installation space.

[0005] To achieve the above object, the utility model provides the following scheme:

[0006] The utility model provides a kind of wind channel flow regulation mechanism, comprising:

[0007] Air ring, the air ring is provided with a plurality of wind channels, and each wind channel is provided with an adjustment block above the air inlet; the adjustment block moves horizontally, and the air inlet size of corresponding wind channel can be controlled;

[0008] Positioning assembly, set to the outer side of the air ring, can rotate around the outer wall of the air ring;

[0009] Adjustment assembly, set to the positioning assembly, can be moved to the air inlet above any wind channel with the positioning assembly, and the adjustment assembly can drive the adjustment block at the air inlet position of wind channel to move.

[0010] The opening of the air inlet of the air duct is arranged upward, and a bearing table is arranged outside the air inlet of the air duct, wherein the bearing table is provided with the adjusting block, and the adjusting block can be moved to completely shield the air inlet of the air duct or reversely moved to completely open the air inlet of the air duct.

[0011] The adjusting block is provided with a groove arranged along the moving direction of the adjusting block at the top, and the adjusting rod of the adjusting assembly can enter the groove from one side of the adjusting block and drive the adjusting block to move in the groove.

[0012] The adjusting assembly comprises an adjusting plate, wherein the adjusting plate is provided with a driving motor and a sliding table, the output shaft of the driving motor is drivingly connected with a horizontal lead screw, the horizontal lead screw is provided with a nut, the nut is fixedly connected with the adjusting rod outside, and the upper part of the adjusting rod is slidingly connected with the sliding table.

[0013] The positioning assembly comprises an annular disc arranged outside the vertical plate of the air ring, the annular disc is drivingly connected with the outside of the vertical plate through a driving device, and the annular disc can rotate around the vertical plate; the annular disc is located above the adjusting block, and the annular disc is provided with the adjusting assembly.

[0014] The outside wall of the vertical plate is annularly provided with a guide rail groove and a groove, the annular disc is movably connected with the guide rail groove through a positioning wheel, the groove is provided with a closed synchronous belt, and the driving device comprises a control motor.

[0015] The two sides of the synchronous rod are provided with tension plates capable of being horizontally adjusted, the tension plates are provided with tension wheels, and the tension wheels abut against the outside of the synchronous belt.

[0016] The control motor is vertically arranged, the output shaft of the control motor is drivingly connected with a driving wheel, the bottom of the synchronous rod is fixedly provided with a driven wheel, and the driving wheel and the driven wheel are drivingly connected through a closed belt.

[0017] A plurality of fixing seats are fixedly arranged on the annular disc, the positioning wheel comprises a first positioning wheel, the inside of the fixing seat is connected with the first positioning wheel through a horizontal shaft, the first positioning wheel is arranged in the guide rail groove and is in rolling contact connection with the inside wall below the guide rail groove.

[0018] The positioning wheel further comprises a second positioning wheel, the top of the fixing seat is provided with a horizontal adjusting plate, the horizontal adjusting plate is provided with a vertical shaft, the second positioning wheel is installed on the vertical shaft, and the second positioning wheel is in rolling contact connection with the outside wall of the vertical plate; the horizontal adjusting plate can adjust the contact force of the second positioning wheel and the side wall of the vertical plate.

[0019] Compared with the prior art, the present application has the following technical effects:

[0020] The positioning assembly is arranged above the air duct, does not occupy the installation space of the air duct, and allows more air ducts to be arranged around the outer side of the air ring; an adjusting assembly is arranged on the positioning assembly, the positioning assembly drives the adjusting assembly to be rotatable above any air duct, drives the adjusting block at the position to move, and adjusts the size of the air inlet; one adjusting assembly can be used to adjust the air inlets of all air ducts, the overall structure is simpler, and excessive space is not occupied. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0022] Figure 1 A schematic diagram of a film generation process in one of the embodiments;

[0023] Figure 2 A schematic diagram of a cross section at the air duct in one of the embodiments;

[0024] Figure 3 A schematic diagram of the positioning assembly in one of the embodiments;

[0025] Figure 4 A schematic diagram of the installation position of the driving device in one of the embodiments;

[0026] Figure 5 A schematic diagram of the driving device in one of the embodiments;

[0027] Figure 6 A schematic diagram of the positioning wheel in one of the embodiments;

[0028] Figure 7 Another angle schematic diagram of the positioning wheel in one of the embodiments;

[0029] Figure 8 A schematic diagram of the adjusting assembly structure in one of the embodiments;

[0030] Figure 9 A schematic diagram of the adjusting rod arrangement in one of the embodiments.

[0031] In the diagram: 1-Extrusion die head, 2-Film, 3-Control cabinet, 4-Air duct flow regulation mechanism, 5-Film online measuring instrument, 6-Adjusting block, 601-Groove, 7-Air duct, 8-Adjusting component, 801-Drive motor, 802-Coupling, 803-Horizontal lead screw, 804-Adjusting rod, 805-Slide table, 9-Drive device, 901-Control motor, 902-Tensioning wheel, 903-Driving wheel, 904-Driven wheel, 905-Belt, 906-Synchronizing bar, 907-Synchronizing belt, 10-Positioning wheel, 1001-First positioning wheel, 1002-Second positioning wheel, 1003-Fixed seat, 1004-Horizontal adjusting plate, 11-Annular disc, 12-Vertical plate. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] The purpose of this utility model is to provide a duct flow regulation mechanism to solve the problems existing in the prior art. It has a simpler structure and does not occupy too much installation space.

[0034] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] like Figures 1-9 As shown, during the film formation process, the control cabinet 3 controls each part. The extrusion die 1 extrudes the material, which is then blown into film 2 through multiple air ducts 7 at the air ring. After being pressed and tested by the film online measuring instrument 5, film 2 is wound up by the winding machine. The structures and working methods here are mature structures and will not be described in detail. The inventor understands that each air duct 7 of the air ring requires a motor and control mechanism to control the size of the air duct inlet. Because of the existence of these control mechanisms (due to their large size), it is impossible to make more air duct structures. During production, because there are fewer air ducts and the space between adjacent air ducts is large, the film may be thicker or thinner in that area. When adjusting the airflow to adjust the film thickness, only a very small area of ​​film thickness can be adjusted. At this point, simply adjusting the air duct (air duct) inlet size is insufficient to improve the overall film thickness deviation. To solve this problem, this utility model provides an air duct flow rate adjustment mechanism 4, such as... Figures 2-9As shown, including positioning assembly and adjusting assembly 8, on the wind ring ring is provided with a plurality of air duct 7, each air duct 7 air inlet is provided with an adjusting block 6; adjusting block 6 horizontal movement, can control the corresponding air duct 7 air inlet size; positioning assembly is arranged outside the wind ring, can rotate around the outside wall of the wind ring; adjusting assembly 8 is arranged on the positioning assembly, can move to any air duct 7 air inlet above, and adjusting assembly 8 can drive the adjusting block 6 at the air inlet position of the air duct 7 moves. The utility model discloses an adjusting assembly 8, follow the positioning assembly rotates to any air duct 7 air inlet above, so that the size of the air inlet of all air ducts 7 can be adjusted in turn, control its air outlet wind volume, simplify the overall structure, reduce the number of adjusting assembly 8, therefore, the space is smaller, so that the wind ring outside can be arranged more air duct 7, the interval between the air outlet of adjacent two air ducts 7 is smaller, the adjustable area of the film 2 is larger, more fine, and then by adjusting the air volume of the air duct 7, so that a larger number of air ducts 7 can better control the thickness of the film 2.

[0036] As Figure 2 As shown, the air duct 7 penetrates the wind ring, the wind ring includes a vertical arrangement and a ring-shaped structure of the vertical plate 12, the inclined opening of the air duct 7 on the inside of the wind ring is the air outlet, and the outside is provided with an air inlet opening upward, Figure 2 The arrow is the direction of the wind. In order to better adjust the size of the air inlet and then control the air volume, a bearing table is fixedly arranged outside the air inlet of the air duct 7, the adjusting block 6 is slidably arranged on the bearing table, a plurality of adjusting blocks 6 are sequentially arranged outside the wind ring, the adjusting block 6 can be moved to completely shield the air inlet of the air duct 7, or reversely moved to completely open the air inlet of the air duct 7, so that the opening size of the air inlet is adjusted during the movement of the adjusting block 6. In order to avoid the collision between the adjusting assembly 8 and the adjusting block 6 during the rotation of the adjusting assembly 8, in a preferred embodiment, a groove 601 is arranged on the top of the adjusting block 6 along the moving direction of the adjusting block 6, the groove 601 is a U-shaped groove, and the groove 601 of the adjusting block 6 is used to avoid the accidental collision of the adjusting rod 804 and the other adjusting blocks 6 during the rotation of the adjusting rod 804 and the annular disc 11. The groove 601 is as wide as the adjusting block 6, so that the grooves 601 of the plurality of adjusting blocks 6 can form an annular recessed groove, the bottom of the adjusting rod 804 of the adjusting assembly 8 can rotate in the groove, and then the bottom of the adjusting rod 804 can enter the groove 601 from one side of the adjusting block 6, so that the other side leaves the groove 601, and the adjusting block 6 does not interfere with the rotation of the adjusting rod 804. When the adjusting rod 804 rotates into a certain groove 601, the adjusting assembly 8 drives the adjusting rod 804 to move, and then the adjusting rod 804 pushes the side wall of the groove 601, so that the adjusting block 6 moves synchronously, and the size of the air inlet is adjusted.

[0037] The utility model discloses a single adjusting assembly 8 can be regulated respectively the size of the air inlet of multiple air flue 7, in order to realize this function, so the positioning assembly of this embodiment adopts the annular disc 11 of setting in the vertical board 12 outside of the wind ring, and the annular disc 11 is located above the adjusting block 6, will not interfere with the arrangement of adjusting block 6 and air flue 7, and the annular disc 11 is equipped with an adjusting assembly 8.

[0038] This embodiment can further reduce the installation space, specifically, the control motor 901 is vertically arranged, and the output shaft of the control motor 901 is drivingly connected with a driving wheel 903, the bottom of the synchronous rod 906 is fixedly provided with a driven wheel 904, and the driving wheel 903 and the driven wheel 904 are drivingly connected through a closed belt 905.

[0039] The annular disc 11 of the utility model runs more stably, and is more stable in connection, in order to realize this purpose, so five fixed seats 1003 are fixedly arranged on the annular disc 11, the positioning wheel 10 comprises a first positioning wheel 1001 and a second positioning wheel 1002, the first positioning wheel 1001 is connected with the inside of the fixed seat 1003 through a horizontal shaft, the first positioning wheel 1001 is arranged in the guide rail groove, and is rollingly connected with the inner side wall below the guide rail groove, the top of the fixed seat 1003 is provided with a horizontal adjusting plate 1004, the horizontal adjusting plate 1004 is provided with a vertical shaft, the second positioning wheel 1002 is arranged on the vertical shaft, and the second positioning wheel 1002 is rollingly connected with the outer side wall of the vertical board 12; the horizontal adjusting plate can adjust the contact force of the second positioning wheel 1002 and the side wall of the vertical board 12.

[0040] The adjusting plate of the adjusting assembly 8 is provided with a driving motor 801 and a sliding table 805, the output shaft of the driving motor 801 is drivingly connected with a horizontal screw rod 803, the horizontal screw rod 803 is provided with a nut, the outer side of the nut is fixedly connected with an adjusting rod 804 through a connecting rod, the adjusting rod 804 is of a T-shaped structure, one end of the horizontal part of the upper end of the adjusting rod 804 is connected with the nut through a connecting rod, the inner side of the horizontal part of the upper end of the adjusting rod 804 is slidingly connected with the sliding table 805, the sliding table 805 is fixed to one side of the adjusting plate, the bottom of the vertical part of the lower end of the adjusting rod is located in the groove 601 of the adjusting block 6, so that the position of the adjusting block 6 can be adjusted.

[0041] The driving motor 801 is started, the horizontal screw rod 803 is driven to rotate through the shaft coupling 802, the nut on the horizontal screw rod 803 is fixed on the upper part of the adjusting rod 804, so that the nut and the horizontal screw rod 803 rotate one circle or reverse one circle, and the adjusting rod 804 is driven to move horizontally forward or backward, wherein the sliding table 805 assists the adjusting rod 804 to avoid deflection during movement and to assist the displacement to be more stable. The bottom of the adjusting rod 804 is in the groove 601 and pushes the adjusting block 6 to move horizontally, so as to control the size of the air duct 7.

[0042] The principle and implementation mode of the utility model are described by applying specific examples, and the above embodiment is only used for helping to understand the method and core idea of the utility model; meanwhile, for the general technical personnel in the field, the specific implementation mode and application range will be changed according to the idea of the utility model. In conclusion, the content of the specification should not be understood as the limitation of the utility model.

Claims

1. An air duct flow regulating mechanism, characterized by: The utility model provides a wind ring, the wind ring is provided with a plurality of air flue on the ring, and the air inlet of each air flue is provided with an adjusting block above, the adjusting block moves horizontally, can control the size of the air inlet of corresponding air flue, The positioning assembly is arranged outside the wind ring and can rotate around the outer wall of the wind ring, The adjusting assembly is arranged on the positioning assembly and can move to the air inlet of any air flue above, and the adjusting assembly can drive the adjusting block at the air inlet of the air flue to move. The opening of the air inlet of the air flue is arranged upward, the outer side of the air inlet of the air flue is provided with a bearing table, the bearing table is provided with the adjusting block, and the adjusting block can move to completely shield the air inlet of the air flue or move reversely to completely open the air inlet of the air flue.

2. The air duct flow regulating mechanism of claim 1, wherein: The top of the adjusting block is provided with a groove arranged along the moving direction, the bottom of the adjusting rod of the adjusting assembly can enter the groove from one side of the adjusting block, and the adjusting block is driven to move in the groove.

3. The air duct flow regulating mechanism of claim 2, wherein: The adjusting assembly comprises an adjusting plate, the adjusting plate is provided with a driving motor and a sliding table, the output shaft of the driving motor is drivingly connected with a horizontal screw rod, the horizontal screw rod is provided with a nut, the outer side of the nut is fixedly connected with the adjusting rod, and the upper part of the adjusting rod is slidingly connected with the sliding table.

4. The air duct flow regulating mechanism of claim 3, wherein: The positioning assembly comprises a ring-shaped disc arranged outside the vertical plate of the wind ring, the ring-shaped disc is drivingly connected with the outer side of the vertical plate through a driving device, and the ring-shaped disc can rotate around the vertical plate; the ring-shaped disc is located above the adjusting block, and the ring-shaped disc is provided with the adjusting assembly.

5. The air duct flow regulating mechanism of claim 1, wherein: The outer wall of the vertical plate is annularly provided with a guide rail groove and a groove, the ring-shaped disc is movably connected with the guide rail groove through a positioning wheel; a closed synchronous belt is arranged in the groove; the driving device comprises a control motor, the control motor is drivingly connected with a synchronous rod, and the synchronous rod is fixedly abutted with the inner side of the synchronous belt.

6. The air duct flow regulating mechanism of claim 5, wherein: The two sides of the synchronous rod are provided with tension plates capable of being horizontally adjusted, the tension plates are provided with tension wheels, and the tension wheels are abutted with the outer side of the synchronous belt.

7. The air duct flow regulating mechanism of claim 6, wherein: The control motor is vertically arranged, the output shaft of the control motor is drivingly connected with a driving wheel, the bottom of the synchronous rod is fixedly provided with a driven wheel, and the driving wheel and the driven wheel are drivingly connected through a closed belt.

8. The air duct flow regulating mechanism of claim 6, wherein: A plurality of fixing seats are fixedly arranged on the ring-shaped disc, the positioning wheel comprises a first positioning wheel, the inner side of the fixing seat is connected with the first positioning wheel through a horizontal shaft, the first positioning wheel is arranged in the guide rail groove, and the first positioning wheel is rollingly connected with the inner side wall below the guide rail groove.

9. The air duct flow regulating mechanism of claim 6, wherein: The positioning wheel further comprises a second positioning wheel, the top of the fixing seat is provided with a horizontal adjusting plate, the horizontal adjusting plate is provided with a vertical shaft, the second positioning wheel is installed on the vertical shaft, and the second positioning wheel is rollingly connected with the outer wall of the vertical plate; the horizontal adjusting plate can adjust the contact force between the second positioning wheel and the outer wall of the vertical plate.

10. The air duct flow regulating mechanism of claim 9, wherein: ​

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