Modularized heating structure of polyethylene film coating oven and coating oven
Through the modular heating structure and automatic cleaning mechanism, the problem of fixing the heating distance of the traditional oven is solved, and uniform heating and drying of different film thicknesses is achieved, which improves production efficiency and film quality.
Patent Information
- Application Number
- CN202422341757.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-09-25
AI Technical Summary
The fixed heating device of traditional polyethylene film coating ovens is difficult to adapt to the difference in heating distance between films of different thicknesses and materials, resulting in uneven temperature, overheating or underheating, affecting the film quality and production efficiency.
Modular heating structure is adopted, including a driving restriction mechanism, a restriction slider and a limit block. The heating distance is adjusted through the driving restriction mechanism, the lifting mechanism adjusts the position of the drying device, and the cleaning mechanism automatically cleans the impurities on the surface of the membrane to ensure temperature uniformity and adapt to different conditions. Film thickness.
It realizes uniform heating and drying of films of different widths and thicknesses, improves production efficiency, avoids overheating or underheating, meets different coating process needs, and extends the service life of the oven.
Smart Images
Figure CN222241158U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of polyethylene film coating ovens, in particular to a modular heating structure of a polyethylene film coating oven. Background Art
[0002] In the soft plastic packaging industry, polyethylene film is widely used due to its good physical properties, chemical stability and processability. However, in order to improve the functionality of polyethylene film, such as increasing its gas barrier, moisture barrier and heat sealing properties, the coating process is often used to modify the surface of polyethylene film. In this process, the oven is a key equipment, and its heating efficiency and uniformity directly determine the quality and production efficiency of the coated film.
[0003] In the polyethylene film coating process, the oven is a key equipment, and its heating performance directly affects the quality and production efficiency of the coated film. Traditional oven designs often use fixed heating devices, which are difficult to adapt to the differentiated heating distance requirements of polyethylene films of different thicknesses and materials, resulting in uneven temperatures, overheating or underheating during the heating process, which in turn affects the surface quality and performance stability of the coated film. In addition, the fixed heating distance also limits the flexibility of the oven, making it difficult to perform at its best in different production scenarios. Utility Model Content
[0004] In view of the above problems, a modular heating structure of a polyethylene film coating oven is provided, which solves the problem of fixed heating distance in the prior art by driving a limiting mechanism, a first limiting sliding block, a second limiting sliding block and a limit block.
[0005] In order to solve the problems of the prior art, the utility model provides a modular heating structure of a polyethylene film coating oven, comprising a bottom plate, an oven main body arranged on the bottom plate, a plurality of feed rollers arranged in the oven main body and used for conveying polyethylene film, and a drying mechanism arranged in the oven main body and used for drying the polyethylene film, the drying mechanism comprising a drying device and a mounting connecting plate for mounting the drying device, and a driving limiting mechanism for driving the drying device to move relatively away from and approach to the horizontal straight line direction, the driving limiting mechanism comprising a first limiting sliding block and a second limiting sliding block fixedly connected to the mounting connecting plate, and a limit block for limiting the first limiting sliding block and the second limiting sliding block from sliding in the horizontal straight line direction.
[0006] Preferably, the drive limiting mechanism also includes a first linear drive, a ball screw, a sliding seat, a mounting block and a limiting groove; the first linear drive is arranged on the oven body; the ball screw is rotatably arranged on the first linear drive, and the input end of the ball screw is connected to the output end of the first linear drive through a coupling; the sliding seat is threadedly arranged on the ball screw; the mounting block is arranged above the sliding seat; the limiting groove is opened on the oven body, and the limiting groove is used to limit the sliding of the mounting block in the horizontal linear direction in the limiting groove.
[0007] Preferably, the drive limiting mechanism further includes a first hinged rod and a second hinged rod; the first hinged rod is rotatably disposed on the sliding seat and is rotatably connected to the first limiting sliding block; the second hinged rod is rotatably disposed on the sliding seat and is rotatably connected to the second limiting sliding block.
[0008] Preferably, the modular heating structure of the polyethylene film coating oven also includes a lifting mechanism arranged on the mounting connecting plate and used to vertically raise or lower the drying device; the lifting mechanism includes a second linear drive, a threaded rod, a threaded block and a limiting rod; the second linear drive is arranged on the oven body; the threaded rod is arranged at the output end of the second linear drive, and the input end of the threaded rod is connected to the output end of the second linear drive; the threaded block is threadedly arranged on the threaded rod, and the threaded block is fixedly connected to the drying device; the limiting rod is arranged on the mounting connecting plate and has a pair, and the limiting rod and the threaded block are clearance-matched.
[0009] Preferably, the modular heating structure of the polyethylene film coating oven also includes a cleaning mechanism arranged on the bottom plate for cleaning the polyethylene film during transportation; the cleaning mechanism includes a conveyor belt, a mounting plate, a limiting frame, a connecting and fixing block, a cleaning block, a limiting block and a rotating block; the conveyor belt is arranged on the bottom plate, and the discharge port of the conveyor belt is located close to the feed port of the oven body; the mounting plate is arranged on the conveyor belt; the limiting frame is slidably arranged on the mounting plate in the horizontal straight direction; the connecting and fixing block is arranged on the limiting frame and has a pair; the cleaning block is arranged on the connecting and fixing block and has a plurality of cleaning blocks, and the cleaning block is located above the conveyor belt; the limiting block is arranged on the mounting plate, and the limiting block is used to limit the sliding of the connecting and fixing block in the horizontal straight direction; the rotating block is rotatably arranged on the mounting plate and is used to drive the limiting frame to slide back and forth in the horizontal straight direction.
[0010] Preferably, the cleaning mechanism further comprises a first rotary driver and a rotary rod; the first rotary driver is arranged on the mounting plate and is located above the limiting frame; the rotary rod is arranged on the first rotary driver and is located at an eccentric position of the rotary block.
[0011] The utility model also provides a coating oven, which comprises the modular heating structure of the polyethylene film coating oven.
[0012] Compared with the prior art, the utility model has the following beneficial effects:
[0013] 1. The utility model can evenly heat and dry polyethylene films of different widths and thicknesses by setting a driving limiting mechanism, a first limiting sliding block, a second limiting sliding block and a limiting block, thereby ensuring uniform temperature distribution in each area of the oven body and meeting the requirements of different coating processes;
[0014] 2. The utility model provides a first linear drive, a ball screw, a sliding seat, a mounting block and a limiting groove, so that when the sliding seat slides in a horizontal linear direction, the limiting groove is provided on the oven body for stable sliding;
[0015] 3. The utility model provides a first hinge rod and a second hinge rod, so that when the sliding seat slides, the first limiting sliding block and the second limiting sliding block connected in rotation can be driven to move relatively away from each other along the limit block with clearance fit;
[0016] 4. The utility model is provided with a lifting mechanism, when the thread block moves up or down, it can drive the drying device fixedly connected thereto to rise or fall synchronously, so as to achieve heating and drying of polyethylene films of different thicknesses, thereby improving production efficiency;
[0017] 5. The utility model is provided with a cleaning mechanism to adjust the contact distance between the cleaning block and the conveyor belt, so as to clean polyethylene films of different thicknesses;
[0018] 6. The utility model achieves the rotational driving movement of the rotating block by providing a first rotation driver and a rotating rod. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a three-dimensional overall structural diagram of a modular heating structure of a polyethylene film coating oven;
[0020] Figure 2 It is a modular heating structure of polyethylene film coating oven. Figure 1 A side view cutaway stereoscopic structure diagram;
[0021] Figure 3 It is a three-dimensional structural diagram of a drive limiting mechanism of a modular heating structure of a polyethylene film coating oven;
[0022] Figure 4 It is a modular heating structure of polyethylene film coating oven. Figure 2 The structure diagram at A is enlarged;
[0023] Figure 5 It is a modular heating structure of polyethylene film coating oven. Figure 3 The structure diagram at B is enlarged;
[0024] Figure 6 The present invention is a three-dimensional structural diagram of a modular heating structure of a polyethylene film coating oven, in which a first limiting sliding block and a second limiting sliding block are relatively far away from each other;
[0025] Figure 7 It is a three-dimensional structural diagram of the lifting mechanism of the modular heating structure of a polyethylene film coating oven;
[0026] Figure 8 It is a three-dimensional structural diagram of a cleaning mechanism of a modular heating structure of a polyethylene film coating oven;
[0027] Fig. 9 It is a three-dimensional structural diagram of the cleaning mechanism of the modular heating structure of a polyethylene film coating oven in the disassembled state;
[0028] Fig.10 The present invention is a three-dimensional structural diagram of the limiting blocks and mounting plates of a modular heating structure of a polyethylene film coating oven.
[0029] The numbers in the figure are: 1, bottom plate; 11, controller; 2, oven body; 21, feed roller; 3, drying mechanism; 31, drying device; 32, mounting connecting plate; 4, drive limiting mechanism; 41, first limiting sliding block; 42, second limiting sliding block; 43, limit block; 44, first linear drive; 45, ball screw; 46, sliding seat; 47, mounting block; 48, limiting groove; 49, first hinge rod; 491, second hinge rod ; 5. lifting mechanism; 51. second linear drive; 52. threaded rod; 53. threaded block; 54. limiting rod; 6. cleaning mechanism; 61. conveyor belt; 62. mounting plate; 63. limiting frame; 64. connecting fixing block; 641. mounting docking groove; 642. docking hole; 65. cleaning block; 651. mounting groove; 652. threaded locking rod; 66. limiting block; 67. rotating block; 68. first rotating drive; 69. rotating rod. DETAILED DESCRIPTION
[0030] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0031] See also Figure 1-Figure 3As shown, a modular heating structure of a polyethylene film coating oven includes a base plate 1, an oven body 2 arranged on the base plate 1, a plurality of feed rollers 21 arranged in the oven body 2 and used for conveying polyethylene film, and a drying mechanism 3 arranged in the oven body 2 and used for drying the polyethylene film, the drying mechanism 3 includes a drying device 31 and a mounting connecting plate 32 for mounting the drying device 31, and a driving limiting mechanism 4 for driving the drying device 31 to move relatively away from and approach to each other in a horizontal straight line direction, the driving limiting mechanism 4 includes a first limiting sliding block 41 and a second limiting sliding block 42 fixedly connected to the mounting connecting plate 32, and a limit block 43 for limiting the first limiting sliding block 41 and the second limiting sliding block 42 from sliding in a horizontal straight line direction.
[0032] When it is necessary to heat and dry the polyethylene film on the feed roller 21 in the oven body 2, the drying device 31 is started to heat and dry the polyethylene film on the feed roller 21. When it is necessary to adjust the position of the drying device 31, the limiting mechanism 4 is first used to drive the mounting connecting plate 32, the first limiting sliding block 41 and the second limiting sliding block 42 fixedly connected to the drying device 31 to move relatively away from or relatively close to each other in the horizontal straight line direction along the limit block 43, so that the horizontal straight line distance between the drying devices 31 can be adjusted. When it is necessary to adjust the distance of the drying device 31 to descend or ascend separately, the lifting mechanism 5 can be used to set the drying mechanism 3 on each mounting connecting plate 32 to perform a separate and independent vertical ascending or descending adjustment to ensure temperature uniformity and adapt to polyethylene films of different widths and thicknesses. The adjustment of this distance can not only ensure that heat can be efficiently and evenly transferred to the surface of the polyethylene film to avoid overheating or underheating, but also effectively reduce energy consumption, improve production efficiency, ensure uniform temperature distribution in various regions in the oven body 2, and meet the needs of different coating processes.
[0033] See also Figure 2-Figure 4 As shown, the drive limiting mechanism 4 also includes a first linear driver 44, a ball screw 45, a sliding seat 46, a mounting block 47 and a limiting groove 48; the first linear driver 44 is arranged on the oven body 2; the ball screw 45 is rotatably arranged on the first linear driver 44, and the input end of the ball screw 45 is connected to the output end of the first linear driver 44 through a coupling; the sliding seat 46 is threadedly arranged on the ball screw 45; the mounting block 47 is arranged above the sliding seat 46; the limiting groove 48 is opened on the oven body 2, and the limiting groove 48 is used to limit the mounting block 47 from sliding in the horizontal linear direction in the limiting groove 48.
[0034] When it is necessary to dry polyethylene films of different widths, the first linear drive 44 is started first, which then drives the ball screw 45 to move the engaged sliding seat 46 relatively closer to or farther away in the horizontal straight direction. During the sliding of the sliding seat 46, it can be restricted by the limiting groove 48 provided on the oven body 2 to slide stably in the horizontal straight direction, so that when the sliding seat 46 slides in the horizontal straight direction, it can slide stably through the limiting groove 48 provided on the oven body 2.
[0035] See also Figure 3-Figure 5 As shown, the drive limiting mechanism 4 also includes a first hinged rod 49 and a second hinged rod 491; the first hinged rod 49 is rotatably set on the sliding seat 46 and is rotatably connected to the first limiting sliding block 41; the second hinged rod 491 is rotatably set on the sliding seat 46 and is rotatably connected to the second limiting sliding block 42.
[0036] During the sliding process of the sliding seat 46 to the left, since the first limiting sliding block 41 and the second limiting sliding block 42 are rotatably connected to the sliding seat 46 through the first hinge rod 49 and the second hinge rod 491 respectively, when the sliding seat 46 slides, the first limiting sliding block 41 and the second limiting sliding block 42 connected in rotation can be driven to move relatively away from each other along the limit block 43 with clearance fit. When the first limiting sliding block 41 and the second limiting sliding block 42 move relatively away from each other, the mounting connecting plate 32 and the drying mechanism 3 fixed thereto can be driven to move synchronously. When the sliding seat 46 moves to the left, several drying devices 31 can be relatively far apart and expanded, so that the heating range of the drying device 31 on the polyethylene film on the feed roller 21 can be expanded, and a wider polyethylene film can be coped with. When the polyethylene film is narrow, the sliding seat 46 is driven to slide to the right in a horizontal straight line direction by the first linear drive 44, so that the drying devices 31 can be relatively approached, so as to adjust the distance of the drying devices 31 to be relatively close and relatively far away, and can adapt to the heating and drying effects of polyethylene films of different widths.
[0037] See also Figure 7As shown, the modular heating structure of the polyethylene film coating oven also includes a lifting mechanism 5 arranged on the mounting connecting plate 32 and vertically raising or lowering the drying device 31; the lifting mechanism 5 includes a second linear drive 51, a threaded rod 52, a threaded block 53 and a limiting rod 54; the second linear drive 51 is arranged on the mounting connecting plate 32; the threaded rod 52 is arranged at the output end of the second linear drive 51, and the input end of the threaded rod 52 is connected to the output end of the second linear drive 51; the threaded block 53 is threadedly arranged on the threaded rod 52, and the threaded block 53 is fixedly connected to the drying device 31; the limiting rod 54 is arranged on the mounting connecting plate 32 and has a pair, and the limiting rod 54 and the threaded block 53 are clearance-matched, the second linear drive 51 has a plurality of them, and they are respectively arranged on the mounting connecting plate 32, and the oven body 2 is provided with a controller 11 for controlling the start and stop of the first linear drive 44, the second linear drive 51 and the first rotary drive 68, and the first linear drive 44, the second linear drive 51 and the first rotary drive 68 are respectively electrically connected to the controller 11 through wires.
[0038] When the polyethylene film is thicker, the second linear drive 51 is started by the controller 11. When the second linear drive 51 is started, the connected threaded rod 52 can be rotated. When the threaded rod 52 is rotated, the engaged threaded block 53 can be stably raised or lowered in the vertical direction along the limiting rod 54 with clearance fit. When the threaded block 53 is raised or lowered, the drying device 31 fixedly connected thereto can be driven to rise or fall synchronously, so that polyethylene films of different thicknesses can be heated and dried, thereby improving production efficiency.
[0039] See also Figure 1-Figure 8As shown, the modular heating structure of the polyethylene film coating oven also includes a cleaning mechanism 6 arranged on the bottom plate 1 for cleaning the polyethylene film during the conveying process; the cleaning mechanism 6 includes a conveyor belt 61, a mounting plate 62, a limiting frame 63, a connecting and fixing block 64, a cleaning block 65, a limiting block 66 and a rotating block 67; the conveyor belt 61 is arranged on the bottom plate 1, and the discharge port of the conveyor belt 61 is located close to the feed port of the oven body 2; the mounting plate 62 is arranged on the conveyor belt 61; the limiting frame 63 is slidably arranged on the mounting plate 62 in a horizontal straight line direction; the connecting and fixing block 64 is arranged on the limiting frame 63 and has a pair; the cleaning block 65 is arranged on the connecting and fixing block 64 and has a plurality of cleaning blocks, and the cleaning block 65 is located above the conveyor belt 61; the limiting block 66 is arranged on the mounting plate 62, and the limiting block 66 is used to limit the connecting and fixing block 64 to move horizontally and linearly The rotating block 67 is rotatably arranged on the mounting plate 62 and is used to drive the limiting frame 63 to slide back and forth in the horizontal straight line direction. The connecting and fixing block 64 is provided with a mounting docking groove 641 for the cleaning block 65 to be inserted, and a docking hole 642 is provided in the mounting docking groove 641. The cleaning block 65 is provided with a plurality of mounting grooves 651 corresponding to the positions of the docking holes 642. The mounting groove 651 is threadedly connected with a threaded locking rod 652. The threaded locking rod 652 is used to quickly install the cleaning block 65 on the connecting and fixing block 64. The mounting groove 651 can be aligned with the position of the docking hole 642 according to the thickness of the polyethylene film, so that the installation distance of the cleaning block 65 on the connecting and fixing block 64 can be controlled, so as to adjust the contact distance between the cleaning block 65 and the conveyor belt 61, so as to clean polyethylene films of different thicknesses.
[0040] When it is necessary to transport the polyethylene film to the oven main body 2 for heating and drying, first the conveyor belt 61 is started, and then the polyethylene film is placed on the conveyor belt 61, and then the rotating block 67 rotates. When the rotating block 67 rotates, the limiting frame 63 that is fitted to the outer wall and the connecting and fixing block 64 can be driven to slide back and forth in the horizontal straight line direction along the limiting block 66 that fits the clearance. When the connecting and fixing block 64 slides back and forth, it can drive the cleaning block 65 connected thereto to clean the polyethylene film on the conveyor belt 61. Since impurities on the polyethylene film may produce odor or harmful gases during the heating process of the oven main body 2, and even pollute the internal environment of the oven main body 2, affecting the service life of the oven main body 2 and the quality of subsequent processed products, when the polyethylene film is transported to the oven main body 2 for heating in the preliminary work, impurities and dust on the polyethylene film can be automatically cleaned to prevent pollution of the air in the oven main body 2.
[0041] See also Figure 8 and Fig.10As shown, the cleaning mechanism 6 also includes a first rotating driver 68 and a rotating rod 69 ; the first rotating driver 68 is arranged on the mounting plate 62 and is located above the limiting frame 63 ; the rotating rod 69 is arranged on the first rotating driver 68 and is located at an eccentric position of the rotating block 67 .
[0042] When the rotating block 67 needs to be driven to rotate, the first rotating driver 68 drives the rotating rod 69 to rotate. When the rotating rod 69 rotates, the rotating block 67 can be rotated, thereby achieving the rotational driving movement of the rotating block 67.
[0043] The utility model also provides a coating oven, which comprises the modular heating structure of the polyethylene film coating oven.
[0044] The above embodiments only express one or several implementation methods of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the attached claims.
Claims
1. A modular heating structure of a polyethylene film coating oven, comprising a bottom plate (1), an oven body (2) arranged on the bottom plate (1), a plurality of feed rollers (21) arranged in the oven body (2) and used to feed the polyethylene film, and a drying mechanism (3) arranged in the oven body (2) and used to dry the polyethylene film, the drying mechanism (3) comprising a drying device (31) and a mounting connecting plate (32) for mounting the drying device (31), and a driving limiting mechanism (4) for driving the drying device (31) to move relatively away from and close to each other in a horizontal straight line direction; characterized in that: The driving limiting mechanism (4) comprises a first limiting sliding block (41) and a second limiting sliding block (42) fixedly connected to the mounting connecting plate (32), and a limit block (43) for limiting the first limiting sliding block (41) and the second limiting sliding block (42) from sliding in a horizontal straight line direction.
2. The modular heating structure of a polyethylene film coating oven according to claim 1, characterized in that: The drive limiting mechanism (4) further comprises a first linear drive (44), a ball screw (45), a sliding seat (46), a mounting block (47) and a limiting groove (48); the first linear drive (44) is arranged on the oven body (2); the ball screw (45) is rotatably arranged on the first linear drive (44), and the input end of the ball screw (45) is connected to the output end of the first linear drive (44) via a coupling; the sliding seat (46) is threadedly arranged on the ball screw (45); the mounting block (47) is arranged above the sliding seat (46); and the limiting groove (48) is opened on the oven body (2), and the limiting groove (48) is used to limit the mounting block (47) from sliding in a horizontal linear direction in the limiting groove (48).
3. The modular heating structure of a polyethylene film coating oven according to claim 2, characterized in that: The drive limiting mechanism (4) further comprises a first hinged rod (49) and a second hinged rod (491); the first hinged rod (49) is rotatably disposed on the sliding seat (46) and is rotatably connected to the first limiting sliding block (41); the second hinged rod (491) is rotatably disposed on the sliding seat (46) and is rotatably connected to the second limiting sliding block (42).
4. The modular heating structure of a polyethylene film coating oven according to claim 1, characterized in that: The modular heating structure of the polyethylene film coating oven also includes a lifting mechanism (5) arranged on the mounting connection plate (32) and used to lift or lower the drying device (31) in a vertical direction; the lifting mechanism (5) includes a second linear drive (51), a threaded rod (52), a threaded block (53) and a limiting rod (54); the second linear drive (51) is arranged on the oven body (2); the threaded rod (52) is arranged at the output end of the second linear drive (51), and the input end of the threaded rod (52) is connected to the output end of the second linear drive (51); the threaded block (53) is threadedly arranged on the threaded rod (52), and the threaded block (53) is fixedly connected to the drying device (31); and the limiting rod (54) is arranged on the mounting connection plate (32) and has a pair of limiting rods, and the limiting rods (54) and the threaded block (53) are clearance-matched.
5. The modular heating structure of a polyethylene film coating oven according to claim 1, characterized in that: The modular heating structure of the polyethylene film coating oven further comprises a cleaning mechanism (6) arranged on the bottom plate (1) for cleaning the polyethylene film during the conveying process; the cleaning mechanism (6) comprises a conveyor belt (61), a mounting plate (62), a limiting frame (63), a connecting and fixing block (64), a cleaning block (65), a limiting block (66) and a rotating block (67); the conveyor belt (61) is arranged on the bottom plate (1), and the outlet of the conveyor belt (61) is located close to the inlet of the oven body (2); the mounting plate (62) is arranged on the conveyor belt (61); the limiting frame (63) ) is slidably arranged on the mounting plate (62) in the horizontal straight line direction; a connecting and fixing block (64) is arranged on the limiting frame (63) and has a pair; a cleaning block (65) is arranged on the connecting and fixing block (64) and has a plurality of cleaning blocks (65), and the cleaning block (65) is located above the conveyor belt (61); a limiting block (66) is arranged on the mounting plate (62), and the limiting block (66) is used to limit the sliding of the connecting and fixing block (64) in the horizontal straight line direction; a rotating block (67) is rotatably arranged on the mounting plate (62) and is used to drive the limiting frame (63) to reciprocate in the horizontal straight line direction.
6. The modular heating structure of a polyethylene film coating oven according to claim 5, characterized in that: The cleaning mechanism (6) further comprises a first rotating driver (68) and a rotating rod (69); the first rotating driver (68) is arranged on the mounting plate (62) and is located above the limiting frame (63); and the rotating rod (69) is arranged on the first rotating driver (68) and is located at an eccentric position of the rotating block (67).
7. A coating oven, characterized in that: A modular heating structure comprising a polyethylene film coating oven as described in any one of claims 1 to 6.