Drying oven for thin film manufacturing and adjustable air knife device of drying oven
By designing an adjustable air knife device in the oven, the problem that traditional ovens are difficult to control the wind farm is solved, precise adjustment and control of the wind farm is achieved, and product performance and quality in the film manufacturing process is improved.
Patent Information
- Application Number
- CN202421468194.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-25
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-06-25
AI Technical Summary
The air knife device of traditional ovens is fixedly connected, and cannot adjust the specific wind direction and heat and mass transfer conditions of the wind field, making it difficult to control the performance and quality of the film product.
An adjustable air knife device is designed, including a air knife, a rotating mechanism and a fine-tuning mechanism. By rotating and adjusting the angle and air outlet structure of the air knife, precise adjustment and control of the wind field is achieved.
Accurate control of the internal wind field of the oven is achieved, reducing the interference of the wind field on the membrane surface, and improving product performance and quality during the film manufacturing process.
Smart Images
Figure CN222755887U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of plastic processing machinery, in particular to an oven for film manufacturing and an adjustable air knife device thereof. Background Art
[0002] The statements in this section merely provide background information related to the present disclosure and may not constitute prior art.
[0003] When manufacturing thin films, especially for stretch films, coated composite films, and thin film printing, ovens are used to heat or dry the films. Generally, the oven uses a fan to blow hot air into the main air duct, and the main air duct distributes the hot air through distributed wind knives or wind boxes, blowing it to the surface of the film to achieve heat and mass transfer, achieve the purpose of heating or drying, and realize wind field control by adjusting the fan speed.
[0004] The wind knives or bellows in traditional ovens are fixedly connected, with the air outlet directly facing the film, and the position and opening cannot be adjusted. This design can cope with the manufacturing of ordinary products. However, for the manufacturing of some high-end films, such as optical films, optical coating films, NC films, etc., the wind field needs to complete the basic functions of heat and mass transfer while reducing the disturbance of the wind field on the film surface. There are higher requirements for heat exchange and mass transfer in the oven wind field. It is difficult for traditional ovens to achieve control of specific wind direction and specific heat and mass transfer conditions (low wind speed and high mass transfer efficiency, etc.) of the wind field through simple adjustment of the fan speed, making it difficult to control the performance and quality of film products. Utility Model Content
[0005] The purpose of the utility model is to provide an oven for film manufacturing and an adjustable air knife device thereof to solve the problems existing in the prior art.
[0006] The technical solution of the utility model is as follows:
[0007] An adjustable wind knife device for an oven for thin film manufacturing, the adjustable wind knife device is used to be installed in the oven, and comprises: a wind knife, a wind knife rotating mechanism and a fine-tuning mechanism; the wind knife is connected to the wind knife rotating mechanism, and the wind knife is turned by the wind knife rotating mechanism; the fine-tuning mechanism comprises: an adjustment plate, the adjustment plate is installed on both sides of the wind knife by the adjustment device, and the adjustment plate is extended and contracted by the adjustment device, thereby changing the air outlet structure of the wind knife.
[0008] Furthermore, the wind knife rotating mechanism comprises: an air duct connecting pipe, a rotating joint and a rotating assembly;
[0009] The upper end of the wind knife is connected to the air duct connecting pipe through a rotating joint, and the wind knife can be turned by rotating the rotating joint; the air duct connecting pipe is used to be connected to the main air duct of the oven; the rotating assembly is connected to the rotating joint, and the rotating joint can be rotated by the rotating assembly.
[0010] Furthermore, the rotating assembly includes: a rotating handle, an active adjusting gear and a passive adjusting gear; the active adjusting gear is installed on one side of the air duct connecting pipe through a bearing; the rotating handle is connected to the active adjusting gear; the passive adjusting gear is fixed on the rotating joint and engages with the active adjusting gear; by rotating the handle, the active adjusting gear and the passive adjusting gear are linked to drive the wind knife to turn.
[0011] Furthermore, the rotating handle is arranged on the outside of the oven and is connected to the active adjustment gear in the oven through a connecting rod.
[0012] Furthermore, the adjustment device is a fixing bolt, an adjustment hole is opened on the adjustment plate, and the adjustment plate cooperates with the adjustment hole through the fixing bolt and is adjustably installed on the side of the wind knife.
[0013] Furthermore, an adjustment hole is symmetrically arranged on the left and right sides of the adjustment plate.
[0014] Furthermore, the adjustment hole is an elongated hole.
[0015] Furthermore, the adjustment plate comprises:
[0016] A front adjustment plate and a rear adjustment plate; both the front adjustment plate and the rear adjustment plate are provided with adjustment holes; the front adjustment plate is installed on one side of the wind knife through the front adjustment plate fixing bolts and the adjustment holes; the rear adjustment plate is installed on the other side of the wind knife through the rear adjustment plate fixing bolts and the adjustment holes.
[0017] An oven for film manufacturing comprises: the above-mentioned adjustable air knife device for film manufacturing oven, and also comprises: an oven shell, wherein a plurality of adjustable air knife devices are arranged in the oven shell; and the air duct connection pipes of the adjustable air knife devices are all connected to the main air duct of the oven.
[0018] Furthermore, an oven inlet is provided at one end of the oven shell, and an oven outlet is provided at the other end for the film to enter and exit the oven shell; inside the oven shell, and at the bottom of the oven shell, a support guide roller for supporting and guiding is provided, and the adjustable wind knife device is located above the support guide roller.
[0019] Compared with the existing technology, the beneficial effects of the utility model are:
[0020] 1. An adjustable wind knife device for an oven for film manufacturing, which is used to be installed in the oven, comprising: a wind knife, a wind knife rotating mechanism and a fine-tuning mechanism; the wind knife is connected to the wind knife rotating mechanism, and the wind knife is turned by the wind knife rotating mechanism; the fine-tuning mechanism comprises: an adjusting plate, the adjusting plate is installed on both sides of the wind knife by the adjusting device, and the adjusting plate is extended and contracted by the adjusting device, thereby changing the air outlet structure of the wind knife; the utility model can conveniently adjust the wind knife angle by using the rotating mechanism, and the position adjustment of the front and rear adjusting plates is convenient to change the air outlet opening and the blowing angle, and the wind direction and wind speed can be further finely adjusted, so as to effectively realize the precise adjustment and control of the wind direction, wind speed and wind pressure of the wind field inside the oven during the film manufacturing process, and reduce the interference of the wind field on the film surface.
[0021] 2. An adjustable wind knife device for a film manufacturing oven has a simple structure and is easy to operate. It can effectively achieve precise adjustment and control of the wind direction, wind speed, and wind pressure inside the oven during the film manufacturing process. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 A schematic diagram of an oven for film manufacturing and an installation diagram of an adjustable air knife device in the oven;
[0023] Figure 2 A front view of an oven for film manufacturing and an adjustable air knife device thereof;
[0024] Figure 3 A side view of an oven for film manufacturing and an adjustable air knife device thereof;
[0025] Figure 4 Demonstration diagram of different conditions of an oven for film manufacturing and its adjustable air knife device.
[0026] Figure markings: 1-oven shell, 2-oven inlet, 3-film, 4-support guide roller, 5-oven outlet, 6-oven main air duct, 7-adjustable wind knife device, 8-air duct connecting pipe, 9-rotating joint, 10-wind knife, 11-rotating handle, 12-active adjustment gear, 13-passive adjustment gear, 14-front adjustment plate, 15-front adjustment plate fixing bolt, 16-rear adjustment plate, 17-rear adjustment plate fixing bolt, 18-adjustment hole, 19-connecting rod. DETAILED DESCRIPTION
[0027] It should be noted that relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.
[0028] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.
[0029] Embodiment 1
[0030] See also Figure 1-4 An adjustable wind knife device 7 for an oven for manufacturing a thin film 3 is used to be installed in the oven, and includes: a wind knife 10, a wind knife rotating mechanism and a fine-tuning mechanism; the wind knife 10 is connected to the wind knife rotating mechanism, and the wind knife 10 is turned by the wind knife rotating mechanism; the fine-tuning mechanism includes: an adjustment plate, the adjustment plate is installed on both sides of the wind knife 10 through the adjustment device, and the adjustment plate is extended and contracted by the adjustment device, thereby changing the air outlet structure of the wind knife 10.
[0031] In this embodiment, specifically, the wind knife rotating mechanism comprises: an air duct connecting pipe 8, a rotating joint 9 and a rotating assembly;
[0032] The upper end of the wind knife 10 is connected to the air duct connecting pipe 8 through a rotating joint 9, and the wind knife 10 can be turned by rotating the rotating joint 9; the air duct connecting pipe 8 is used to be connected to the main air duct 6 of the oven; the rotating assembly is connected to the rotating joint 9, and the rotating joint 9 can be rotated through the rotating assembly.
[0033] In this embodiment, specifically, the rotating component includes: a rotating handle 11, an active adjusting gear 12 and a passive adjusting gear 13; the active adjusting gear 12 is installed on one side of the air duct connecting tube 8 through a bearing; the rotating handle 11 is connected to the active adjusting gear 12; the passive adjusting gear 13 is fixed on the rotating joint 9 and engages with the active adjusting gear 12; through the rotation of the handle, the active adjusting gear 12 and the passive adjusting gear 13 are linked to drive the wind knife 10 to turn.
[0034] In this embodiment, specifically, the rotating handle 11 is arranged on the outside of the oven to facilitate adjustment; it is connected to the active adjustment gear 12 in the oven through the connecting rod 19; that is, by rotating the handle 11, the active adjustment gear 12 and the passive adjustment gear 13 are linked to drive the wind knife 10 to turn, thereby realizing a large-angle turning of the wind knife 10 and achieving the purpose of changing the blowing direction of the wind field.
[0035] In this embodiment, specifically, the adjustment device is a fixing bolt, and an adjustment hole 18 is opened on the adjustment plate. The adjustment plate cooperates with the adjustment hole 18 through the fixing bolt and is adjustably installed on the side of the wind knife 10.
[0036] In this embodiment, specifically, one adjustment hole 18 is symmetrically arranged on the left and right sides of the adjustment plate.
[0037] In this embodiment, specifically, the adjustment hole 18 is a long hole.
[0038] In this embodiment, specifically, the adjustment plate includes:
[0039] A front adjustment plate 14 and a rear adjustment plate 16; the front adjustment plate 14 and the rear adjustment plate 16 are both provided with an adjustment hole 18; the front adjustment plate 14 is mounted on one side of the wind knife 10 through the front adjustment plate fixing bolt 15 and the adjustment hole 18; the rear adjustment plate 16 is mounted on the other side of the wind knife 10 through the rear adjustment plate fixing bolt 17 and the adjustment hole 18;
[0040] That is, by changing the position of the front adjustment plate 14 or the rear adjustment plate 16, the adjustment plate can be extended and contracted on one side, so that the air outlet structure of the wind knife 10 can be finely changed to achieve the purpose of fine control of the wind field. At the same time, by changing the position of the front adjustment plate 14 and the rear adjustment plate 16 at the same time, the adjustment plate can be extended and contracted on both sides, which can change the air outlet opening and achieve fine adjustment of wind speed and wind pressure.
[0041] Based on the above-mentioned adjustable air knife device 7 of an oven for manufacturing a thin film 3, this embodiment further proposes an oven for manufacturing a thin film 3, comprising:
[0042] The oven shell 1 has a plurality of adjustable air knife devices 7 disposed therein; the air duct connecting pipes 8 of the adjustable air knife devices 7 are all connected to the main air duct 6 of the oven.
[0043] In this embodiment, specifically, an oven inlet 2 is provided at one end of the oven shell 1, and an oven outlet 5 is provided at the other end for the film 3 to enter and exit the oven shell 1; inside the oven shell 1, and at the bottom of the oven shell 1, a support guide roller 4 for supporting and guiding is provided, and the adjustable wind knife device 7 is located above the support guide roller 4.
[0044] The above-mentioned embodiments only express the specific implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the protection scope of the present application. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the technical solution concept of the present application, and these all belong to the protection scope of the present application.
[0045] This background technology section is provided to generally present the context of the present invention, and the work of the currently named inventors, the work to the extent described in this background technology section, and aspects of this section that did not constitute prior art at the time of application are neither explicitly nor implicitly admitted to be prior art of the present invention.
Claims
1. An adjustable air knife device for a film manufacturing oven, characterized in that: The adjustable wind knife device (7) is used to be installed in the oven, and comprises: a wind knife (10), a wind knife rotating mechanism and a fine adjustment mechanism; the wind knife (10) is connected to the wind knife rotating mechanism, and the wind knife (10) is turned by the wind knife rotating mechanism; the fine adjustment mechanism comprises: an adjustment plate, the adjustment plate is installed on both sides of the wind knife (10) by the adjustment device, and the adjustment plate is extended and contracted by the adjustment device, thereby changing the air outlet structure of the wind knife (10).
2. The adjustable air knife device for a film manufacturing oven according to claim 1, characterized in that: The wind knife rotating mechanism comprises: an air duct connecting pipe (8), a rotating joint (9) and a rotating assembly; The upper end of the wind knife (10) is connected to the air duct connecting pipe (8) via a rotating joint (9), and the wind knife (10) can be turned by rotating the rotating joint (9); the air duct connecting pipe (8) is used to be connected to the main air duct (6) of the oven; the rotating assembly is connected to the rotating joint (9), and the rotating joint (9) can be rotated by the rotating assembly.
3. The adjustable air knife device for a film manufacturing oven according to claim 2, characterized in that: The rotating assembly comprises: a rotating handle (11), an active adjusting gear (12) and a passive adjusting gear (13); the active adjusting gear (12) is installed on one side of an air duct connecting pipe (8) via a bearing; the rotating handle (11) is connected to the active adjusting gear (12); the passive adjusting gear (13) is fixed on a rotating joint (9) and meshes with the active adjusting gear (12); when the handle is rotated, the active adjusting gear (12) and the passive adjusting gear (13) are linked to drive the air knife (10) to turn.
4. The adjustable air knife device for thin film manufacturing oven according to claim 3, characterized in that: The rotating handle (11) is arranged outside the oven and is connected to the active adjustment gear (12) inside the oven via a connecting rod (19).
5. The adjustable air knife device for thin film manufacturing oven according to claim 4, characterized in that: The adjustment device is a fixing bolt, and an adjustment hole (18) is provided on the adjustment plate. The adjustment plate cooperates with the adjustment hole (18) through the fixing bolt and is adjustably installed on the side of the wind knife (10).
6. The adjustable air knife device for thin film manufacturing oven according to claim 5, characterized in that: An adjustment hole (18) is symmetrically arranged on the left and right sides of the adjustment plate.
7. The adjustable air knife device for a film manufacturing oven according to claim 6, characterized in that: The adjustment hole (18) is a long hole.
8. The adjustable air knife device for a film manufacturing oven according to claim 7, characterized in that: The regulating plate comprises: A front adjustment plate (14) and a rear adjustment plate (16); the front adjustment plate (14) and the rear adjustment plate (16) are both provided with adjustment holes (18); the front adjustment plate (14) is installed on one side of the wind knife (10) via the front adjustment plate fixing bolts (15) and the adjustment holes (18); the rear adjustment plate (16) is installed on the other side of the wind knife (10) via the rear adjustment plate fixing bolts (17) and the adjustment holes (18).
9. An oven for thin film production, characterized in that: include: An adjustable air knife device for an oven for film manufacturing as described in any one of claims 1 to 8, further comprising: an oven shell (1), wherein a plurality of adjustable air knife devices (7) are arranged in the oven shell (1); and the air duct connecting pipes (8) of the adjustable air knife devices (7) are all connected to the main air duct (6) of the oven.
10. The thin film manufacturing oven according to claim 9, characterized in that: The oven shell (1) is provided with an oven inlet (2) at one end and an oven outlet (5) at the other end for the film (3) to enter and exit the oven shell (1); a support guide roller (4) for supporting and guiding is provided inside the oven shell (1) and at the bottom of the oven shell (1); the adjustable air knife device (7) is located above the support guide roller (4).