Unidirectional film stretching casting machine
By adopting a bidirectional motor-driven screw body and movable ring moving design in the stretch caster, combining the limit block and limit rod, efficient stretching of the film is achieved. At the same time, the impurities on the surface of the film are blown off by using an air pump and a conveying hose, which solves the problems of poor film stretching effect and impurities residues in the prior art, and improves production efficiency and product quality.
Patent Information
- Application Number
- CN202422084174.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-27
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-08-27
AI Technical Summary
The existing stretch casters have poor results when stretching films, and the films are prone to residual impurities during transportation, and require additional cleaning.
A film unidirectional stretch casting machine is designed, and a bidirectional motor is used to drive the screw body to drive the moving ring to move. The first and second stretching rollers are used to stretch the film against the stretching effect, combining the design of the limiting block and the limiting rod to ensure the stretching effect and the limiting effect. At the same time, gas is blown in through an air pump, and impurities on the surface of the film are blown away using the conveying hose and the conveying tank.
It improves the stretching effect of the film, reduces the residue of impurities on the film surface, simplifies the cleaning process, and prevents the film from deforming during the blowing process.
Smart Images
Figure CN223044991U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of casting machines, and in particular to a unidirectional stretching casting machine for thin films. Background Art
[0002] The cast aluminized polypropylene film is a film composed of a composite of a polypropylene film and an aluminum foil, and is one of the important packaging materials with a large output at present. It has the advantages of light texture, high strength, high transparency, and good heat sealability. At the same time, it has a certain barrier property to gases, odors, and light. It is widely used in the fields of composite materials, various food, drug, clothing, and textile packaging materials. In the prior art, polypropylene films are usually produced by casting machines.
[0003] The existing stretching casting machine includes an extruder installed on a frame platform. A casting die head is installed at the extrusion outlet of the extruder. A casting shaping and cooling roller, a cooling and peeling roller, a traction roller, a first thickness gauge, a corona roller, and an on-line slitting and winding device are distributed in sequence from back to front according to the processing order. A unidirectional stretching device is also provided between the first thickness gauge and the corona roller.
[0004] However, in actual stretching, the stretching effect of the existing unidirectional stretching device is poor; at the same time, impurities will remain on the surface of the film body during transportation and need to be cleaned. Therefore, improvement is needed. Summary of the Utility Model
[0005] In order to improve the stretching effect during film casting, the present application provides a unidirectional stretching casting machine for thin films.
[0006] The unidirectional stretching casting machine for thin films provided by the present application adopts the following technical solutions:
[0007] A unidirectional stretching casting machine for thin films includes a workbench. A control panel is fixedly connected to the right side surface of the workbench. A first auxiliary plate, a second auxiliary plate, and a third auxiliary plate are fixedly connected to the upper surface of the workbench in sequence from front to back. Conveying rollers are installed on the right side surfaces of the first auxiliary plate and the third auxiliary plate. A guiding roller is installed on the right side surface of the second auxiliary plate; a bidirectional motor is installed inside the second auxiliary plate. Lead screw bodies are installed at the front and rear ends of the bidirectional motor. A first movable ring and a second movable ring are installed on the outer surface of the lead screw body in sequence from front to back. A first stretching roller is installed on the right side surface of the first movable ring.
[0008] Optionally, a second stretching roller is installed on the right side surface of the second movable ring. Limit blocks are installed on the left side surfaces of the first movable ring and the second movable ring.
[0009] Optionally, a limit rod is installed inside the limit block. A mounting block is installed on the outer surface of the limit rod. The mounting block is installed on the left side surface of the second auxiliary plate.
[0010] Optionally, a mounting plate is installed on the front surface of the second auxiliary plate, and a conveying cylinder is installed on the right side surface of the mounting plate.
[0011] Optionally, a conveying groove is provided on the right side surface of the conveying cylinder, and a conveying hose is installed on the front surface of the conveying cylinder.
[0012] Optionally, an air pump is installed at one end of the delivery hose away from the delivery cylinder, and the air pump is installed on the top surface of the mounting plate.
[0013] Optionally, a top frame is installed on the top surface of the workbench, and a groove is opened inside the top frame.
[0014] Optionally, an inner side wall of the top frame is installed with an extrusion roller, and two groups of the extrusion rollers are provided, and an extrusion groove is provided between the two groups of the extrusion rollers.
[0015] In summary, the present application includes at least one of the following beneficial technical effects:
[0016] 1. When the film is stretched, the film will first pass through the upper surface of the conveying roller, then pass through the lower surface of the guide roller, and then pass through the upper surface of the conveying roller on the right side of the third auxiliary plate. When the film is conveyed, start the bidirectional motor, which can drive the two sets of screw bodies to rotate. When the screw body rotates, the first movable ring and the second movable ring will move on the surface of the screw body. The first movable ring will drive the first stretching roller to move forward, and at this time, the second movable ring will drive the second stretching roller to move to the back; when the first stretching roller and the second stretching roller are moving, the film can be stretched by resistance, and the overall stretching effect is better; at the same time, when the first movable ring and the second movable ring are moving, they are limited by the design of the limit block and the limit rod;
[0017] 2. When in use, start the air pump to deliver gas to the inside of the delivery hose. The delivery hose delivers the gas to the inside of the delivery cylinder, and then delivers it to the surface of the film through the delivery groove, so that some impurities on the surface of the film can be blown away, and the wind will not cause the film to deform. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a structural schematic diagram of a film unidirectional stretching casting machine according to an embodiment of the present application.
[0019] Figure 2 It is a schematic diagram of the structure of the guide roller and the first stretching roller in the embodiment of the present application.
[0020] Figure 3 It is a schematic diagram of the structure of the first stretching roller and the second stretching roller in an embodiment of the present application.
[0021] Figure 4 This is a schematic structural diagram of the mounting plate and the conveying cylinder in the embodiment of the present application.
[0022] Explanation of the reference numerals: 1, workbench; 2, control panel; 3, first auxiliary plate; 4, second auxiliary plate; 5, third auxiliary plate; 6, conveying roller; 7, guiding roller; 8, bidirectional motor; 9, screw rod body; 10, first movable ring; 11, second movable ring; 12, first stretching roller; 13, second stretching roller; 14, limiting block; 15, limiting rod; 16, mounting block; 17, mounting plate; 18, conveying cylinder; 19, conveying groove; 20, air pump; 21, conveying hose; 22, top frame; 23, groove; 24, pressing roller. Detailed implementation manners
[0023] The following further describes the present application in detail with reference to the Figures 1-4 accompanying drawings.
[0024] An embodiment of the present application discloses a unidirectional stretching casting machine for thin films. Referring to Figure 1 , a unidirectional stretching casting machine for thin films includes a workbench 1, and a control panel 2 is fixedly connected to the right surface of the workbench 1. The upper surface of the workbench 1 is fixedly connected with a first auxiliary plate 3, a second auxiliary plate 4 and a third auxiliary plate 5 in sequence from front to back. Conveying rollers 6 are installed on the right surfaces of the first auxiliary plate 3 and the third auxiliary plate 5, a guiding roller 7 is installed on the right surface of the second auxiliary plate 4, and a mounting plate 17 is installed on the front surface of the second auxiliary plate 4. A top frame 22 is installed on the top surface of the workbench 1, a groove 23 is formed inside the top frame 22, and pressing rollers 24 are installed on the inner side walls of the top frame 22. There are two groups of pressing rollers 24, and an extrusion groove is arranged between the two groups of pressing rollers 24.
[0025] The thin film raw material is conveyed inside the two groups of pressing rollers 24, and the thin film is extruded by the two groups of pressing rollers 24, and the overall extrusion effect is good. When the thin film is stretched, first, the thin film passes through the upper surface of the conveying roller 6, then passes through the lower surface of the guiding roller 7, and then passes through the upper surface of the conveying roller 6 on the right side of the third auxiliary plate 5.
[0026] Referring to Figure 2 and Figure 3 , a bidirectional motor 8 is arranged inside the second auxiliary plate 4. Screw rod bodies 9 are installed at the front and rear ends of the bidirectional motor 8. A first movable ring 10 and a second movable ring 11 are installed on the outer surface of the screw rod body 9 in sequence from front to back. A first stretching roller 12 is installed on the right surface of the first movable ring 10, and a second stretching roller 13 is installed on the right surface of the second movable ring 11. Limiting blocks 14 are installed on the left surfaces of the first movable ring 10 and the second movable ring 11. A limiting rod 15 is installed inside the limiting block 14, and a mounting block 16 is installed on the outer surface of the limiting rod 15. The mounting block 16 is installed on the left surface of the second auxiliary plate 4.
[0027] When the film is conveyed, the bidirectional motor 8 is started, and the bidirectional motor 8 can drive the two sets of screw bodies 9 to rotate, so that when the screw body 9 rotates, the first movable ring 10 and the second movable ring 11 will move on the surface of the screw body 9, and the first movable ring 10 will drive the first stretching roller 12 to move forward, and at this time, the second movable ring 11 will drive the second stretching roller 13 to move to the back. When the first stretching roller 12 and the second stretching roller 13 are moving, the film can be stretched by contact, and the overall stretching effect is good.
[0028] At the same time, when the first movable ring 10 and the second movable ring 11 are moved, they are limited by the design of the limit block 14 and the limit rod 15, and the overall limiting effect is good. When the film is transported, the film can be heated and cooled by the external heating roller and the cooling roller. The external heating roller and the cooling roller are prior art and are not shown in the drawings.
[0029] Reference Figure 1 and Figure 4 A conveying cylinder 18 is installed on the right surface of the mounting plate 17, a conveying groove 19 is opened on the right surface of the conveying cylinder 18, a conveying hose 21 is installed on the front surface of the conveying cylinder 18, an air pump 20 is installed on the end of the conveying hose 21 away from the conveying cylinder 18, and the air pump 20 is installed on the top surface of the mounting plate 17.
[0030] Start the air pump 20, and then use the air pump 20 to deliver gas to the inside of the delivery hose 21. The delivery hose 21 delivers the gas to the inside of the delivery cylinder 18, and then delivers it to the surface of the film through the delivery groove 19, so that some impurities on the surface of the film can be blown away, and the wind will not cause the film to deform.
[0031] The implementation principle of a film unidirectional stretching casting machine in the embodiment of the present application is as follows: when the film is stretched, the film will first pass through the upper surface of the conveying roller 6, then pass through the lower surface of the guide roller 7, and then pass through the upper surface of the conveying roller 6 on the right side of the third auxiliary plate 5. When the film is conveyed, the bidirectional motor 8 is started to drive the two sets of screw bodies 9 to rotate, so that when the screw body 9 rotates, the first movable ring 10 and the second movable ring 11 will move on the surface of the screw body 9, and the first movable ring 10 will drive the first stretching roller 12 to move forward, and at this time, the second movable ring 11 will drive the second stretching roller 13 to move to the back. When the first stretching roller 12 and the second stretching roller 13 are moving, the film can be resisted and stretched, and the overall stretching effect is good. At the same time, when the first movable ring 10 and the second movable ring 11 are moving, they are limited by the design of the limit block 14 and the limit rod 15. Start the air pump 20 to deliver gas to the inside of the delivery hose 21. The delivery hose 21 delivers the gas to the inside of the delivery cylinder 18 and then to the surface of the film through the delivery groove 19, so that some impurities on the surface of the film can be blown away without the wind causing the film to deform.
[0032] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A film uniaxial stretching casting machine, comprising a workbench (1), a control panel (2) being fixedly connected to the right side surface of the workbench (1), and a first auxiliary plate (3), a second auxiliary plate (4) and a third auxiliary plate (5) being fixedly connected to the upper surface of the workbench (1) in sequence from front to back, characterized in that: A conveying roller (6) is installed on the right side surface of the first auxiliary plate (3) and the third auxiliary plate (5), and a guide roller (7) is installed on the right side surface of the second auxiliary plate (4); A bidirectional motor (8), the bidirectional motor (8) being mounted inside the second auxiliary plate (4), the front and rear ends of the bidirectional motor (8) being both mounted with a screw body (9), the outer surface of the screw body (9) being mounted with a first movable ring (10) and a second movable ring (11) in sequence from front to back, and the right side surface of the first movable ring (10) being mounted with a first stretching roller (12).
2. A film uniaxial stretching casting machine according to claim 1, characterized in that: A second stretching roller (13) is installed on the right side surface of the second movable ring (11), and a limiting block (14) is installed on the left side surfaces of both the first movable ring (10) and the second movable ring (11).
3. A film uniaxial stretching casting machine according to claim 2, characterized in that: A limiting rod (15) is installed inside the limiting block (14), a mounting block (16) is installed on the outer surface of the limiting rod (15), and the mounting block (16) is installed on the left side surface of the second auxiliary plate (4).
4. The film uniaxial stretching casting machine according to claim 1, characterized in that: A mounting plate (17) is mounted on the front surface of the second auxiliary plate (4), and a conveying cylinder (18) is mounted on the right side surface of the mounting plate (17).
5. The film uniaxial stretching casting machine according to claim 4, characterized in that: A conveying groove (19) is provided on the right side surface of the conveying cylinder (18), and a conveying hose (21) is installed on the front surface of the conveying cylinder (18).
6. A film uniaxial stretching casting machine according to claim 5, characterized in that: An air pump (20) is installed at one end of the delivery hose (21) away from the delivery cylinder (18), and the air pump (20) is installed on the top surface of the mounting plate (17).
7. The film uniaxial stretching casting machine according to claim 1, characterized in that: A top frame (22) is installed on the top surface of the workbench (1), and a groove (23) is provided inside the top frame (22).
8. A film uniaxial stretching casting machine according to claim 7, characterized in that: An extrusion roller (24) is installed on the inner side wall of the top frame (22), two groups of the extrusion rollers (24) are provided, and an extrusion groove is provided between the two groups of the extrusion rollers (24).