An automatic door for an automatic oven-baking and curing room

Abstract

This utility model discloses an automatic door for an automatic unloading and curing chamber, relating to the field of flexible packaging composites. The automatic door includes a door frame fixedly installed on the front of the curing chamber. The door frame has two door openings communicating with the interior of the curing chamber, and each of the two door openings has an opening door unit on its front. Each opening door unit includes a first door leaf, a second door leaf, and a drive assembly. The first and second door leaves are positioned opposite each other on the front of the door frame, and the drive assembly can drive the first and second door leaves to rotate relative to each other. This automatic door for the automatic unloading and curing chamber, through its linkage with the fully automatic unloading process, ensures that the film rolls accurately enter and exit according to the specified curing time, avoiding premature or delayed unloading caused by manual operation, ensuring product process stability, and reducing quality risks.

Description

Technical Field

[0001] This utility model relates to the field of flexible packaging composite technology, specifically to an automatic door for an automatic oven-baking and curing room. Background Technology

[0002] In the production of flexible packaging composite products, the curing room needs to maintain a constant temperature environment of 40-60℃. The adhesive is fully cured to ensure the peel strength and barrier properties of the roll film. As the only passage between the curing room and the outside world, the sealing performance of the automatic door directly determines the stability of the curing environment and is a key link that restricts product quality and production energy consumption.

[0003] As fully automated curing chambers replace traditional manual operations, the contradiction between the "sealing reliability" and "opening and closing synchronization" of automatic doors has become increasingly prominent: Traditional fully automated curing chamber doors, in order to simplify the structure, often adopt a single-leaf sliding or single-layer overlapping sealing design, which is difficult to adapt to the conditions of slight deformation of the door frame and frequent opening and closing of the door under long-term high temperatures in the curing chamber. This leads to a continuous decline in sealing performance, and the specific defects can be summarized in three points: Poor adaptability of the sealing structure and easy failure due to the lack of a groove for limiting: Most existing automatic doors simply attach a single sealing strip to the edge of the door leaf without setting a corresponding sealing groove. When the door leaf is closed, the sealing strip only relies on the pressure of the door body itself to adhere to the door frame. Affected by the high temperature and slight deformation of the door frame and the deviation of the door leaf closure, the sealing strip is prone to local displacement or partial detachment, forming a "line contact" rather than a "surface contact" seal, causing heat energy in the curing chamber to leak out through the gaps. Single-layer seal design, insufficient sealing depth: Existing technologies generally use a single-layer rubber sealing strip, with a sealing contact area of ​​only 10-15mm. 2 It cannot prevent heat leakage and impurity intrusion through tiny gaps (0.1-0.3mm). In actual production, external moisture and dust can easily enter the curing chamber through these gaps, causing bubbles on the film surface and uneven curing of the adhesive, especially failing to meet the stringent cleanliness requirements of food and pharmaceutical packaging. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an automatic door for an automatic curing room, which solves the problem that traditional fully automatic curing room doors, in order to simplify the structure, mostly adopt a single door leaf sliding or single overlapping sealing design, which is difficult to adapt to the working conditions of the curing room under long-term high temperature, slight deformation of the door frame and frequent opening and closing of the door, resulting in continuous degradation of sealing performance.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: an automatic door for an automatic curing room, including a door frame, the door frame being fixedly installed on the front of the curing room, the door frame having two door openings communicating with the interior of the curing room, and each of the two door openings having an opening door unit on its front. The opening door unit includes a first door leaf, a second door leaf, and a drive assembly. The first door leaf and the second door leaf are arranged opposite each other on the front of the door frame, and the drive assembly can drive the first door leaf and the second door leaf to rotate relative to each other. A first sealing groove is provided on the outer side of the second door leaf, and a first sealing strip is fixedly connected to the outer side of the first door leaf, and the first sealing strip is located in the first sealing groove.

[0006] Preferably, a second sealing groove is formed on the inner wall of the first sealing groove, and a second sealing strip is fixedly connected to the outer side of the first sealing strip, with the second sealing strip located in the second sealing groove.

[0007] Preferably, the end of the first sealing strip is chamfered.

[0008] Preferably, the drive assembly includes a servo motor, two fixed blocks, a transmission rod, and two rotating rods. The servo motor and the two fixed blocks are fixedly connected to the door frame, and the transmission rods are rotatably connected between the two fixed blocks.

[0009] Preferably, the output end of the servo motor is connected to the end of the transmission rod, and the two rotating rods are respectively inserted into the interior of the first door leaf and the second door leaf, and the transmission rod is connected to the two rotating rods.

[0010] Preferably, the two ends of the transmission rod extend toward the interior of the two fixed blocks and are fixedly connected to a first bevel gear. The first bevel gear is rotatably connected to the interior of the fixed blocks, and the end of the rotating rod extends toward the interior of the fixed blocks and is fixedly sleeved with a second bevel gear. The first bevel gear and the second bevel gear are meshed together.

[0011] Its beneficial effects are as follows: 1. The automatic door of this automatic curing chamber, through its linkage with the fully automatic curing process, ensures precise entry and exit of the film rolls according to the specified curing time, avoiding premature or delayed exit caused by manual operation, thus ensuring product process stability and reducing quality risks. The first and second sealing strips of the first door leaf cooperate with the first and second sealing grooves of the second door leaf to form a double sealing structure, significantly improving the sealing performance after the automatic door closes; at the same time, the automatic door closes immediately after each roll of film exits, reducing the duration of door opening and further reducing heat loss inside the curing chamber.

[0012] 2. In the automatic door of the automatic oven-out curing room, the drive assembly includes a servo motor driving a transmission rod. The first bevel gear at both ends of the transmission rod meshes with the second bevel gear on the rotating rod, causing the first and second door panels to rotate synchronously relative to each other. This ensures that the door panels open and close synchronously, avoiding problems such as film jamming or sealing failure caused by asynchrony. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the door frame structure of this utility model; Figure 3 This is a schematic diagram of the opening door unit of this utility model; Figure 4 This is a schematic diagram of the structure of the drive component of this utility model; Figure 5 This is a schematic diagram of the structure at the connection between the first and second door panels of this utility model.

[0015] In the diagram: 1. Door frame; 11. Door opening; 2. Opening door unit; 21. First door leaf; 211. First sealing strip; 212. Second sealing strip; 22. Second door leaf; 221. First sealing groove; 222. Second sealing groove; 23. Drive assembly; 231. Servo motor; 232. Fixing block; 233. Transmission rod; 234. Rotating rod. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0017] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0018] This utility model embodiment discloses an automatic door for an automatic oven-discharging and maturation room, according to the attached... Figure 1 Appendix Figure 2 and attached Figure 3 As shown, it includes a door frame 1, which is fixedly installed on the front of the curing room. The door frame 1 has two door openings 11 that are connected to the interior of the curing room. Each of the two door openings 11 has an opening door unit 2 on its front. The door unit 2 includes a first door leaf 21, a second door leaf 22, and a drive assembly 23. The first door leaf 21 and the second door leaf 22 are disposed opposite to each other on the front of the door frame 1, and the drive assembly 23 can drive the first door leaf 21 and the second door leaf 22 to rotate relative to each other. A first sealing groove 221 is provided on the outer side of the second door leaf 22, and a first sealing strip 211 is fixedly connected to the outer side of the first door leaf 21, and the first sealing strip 211 is located in the first sealing groove 221.

[0019] A second sealing groove 222 is provided on the inner wall of the first sealing groove 221, and a second sealing strip 212 is fixedly connected to the outer side of the first sealing strip 211. The second sealing strip 212 is located in the second sealing groove 222.

[0020] The end of the first sealing strip 211 is chamfered.

[0021] By linking the automatic door with the fully automated unloading process, the film rolls are precisely fed in and out according to the specified curing time, avoiding premature or delayed unloading caused by manual operation, ensuring product process stability, and reducing quality risks. The first sealing strip 211 and the second sealing strip 212 of the first door 21 cooperate with the first sealing groove 221 and the second sealing groove 222 of the second door 22 to form a double sealing structure, significantly improving the sealing performance after the automatic door is closed; at the same time, the automatic door closes immediately after each roll of film is unloaded, reducing the duration of door opening and further reducing heat loss in the curing chamber.

[0022] According to the appendix Figure 3 - Appendix Figure 5 As shown, the drive assembly 23 further includes a servo motor 231, two fixed blocks 232, a transmission rod 233 and two rotating rods 234. The servo motor 231 and the two fixed blocks 232 are fixedly connected to the door frame 1, and the transmission rod 233 is rotatably connected between the two fixed blocks 232.

[0023] The output end of the servo motor 231 is connected to the end of the transmission rod 233. The two rotating rods 234 are respectively inserted into the inside of the first door leaf 21 and the second door leaf 22. The transmission rod 233 is connected to the two rotating rods 234.

[0024] The two ends of the transmission rod 233 extend into the interior of the two fixed blocks 232 and are fixedly connected to the first bevel gear. The first bevel gear is rotatably connected to the interior of the fixed block 232. The end of the rotating rod 234 extends into the interior of the fixed block 232 and is fixedly sleeved with the second bevel gear. The first bevel gear and the second bevel gear are meshed together.

[0025] In the drive assembly 23, the servo motor 231 drives the transmission rod 233. The first bevel gear at both ends of the transmission rod 233 meshes with the second bevel gear on the rotating rod 234, causing the first door leaf 21 and the second door leaf 22 to rotate synchronously relative to each other, ensuring that the door leaf opening and closing are synchronized, and avoiding problems such as film jamming or sealing failure caused by asynchrony.

[0026] When the film roll in one of the door openings 11 of the door frame 1 on a certain floor of the curing chamber is ready to be taken out of the oven, the servo motor 231 of the door opening unit 2 on that floor starts, and its output end drives the transmission rod 233 to rotate between two fixed blocks 232; the first bevel gears at both ends of the transmission rod 233 rotate synchronously with the transmission rod 233. Because the first bevel gear meshes with the second bevel gear at the end of the rotating rod 234, and the transmission directions of the two sets of first bevel gears and second bevel gears are opposite, the rotating rod 234, which is respectively inserted into the first door leaf 21 and the second door leaf 22, drives the two door leaves to rotate relative to each other, thereby realizing the automatic door opening and the film roll being moved out from the door opening 11.

[0027] Once a roll of film has completely exited the oven, the servo motor 231 reverses direction, driving the first door 21 and the second door 22 to rotate in the opposite direction to the closed state through the aforementioned transmission structure. At this time, the first sealing strip 211 of the first door 21 is embedded in the first sealing groove 221 of the second door 22, and the second sealing strip 212 is embedded in the second sealing groove 222, forming a double seal and completing the automatic door opening and closing process of one roll of film exiting the oven.

[0028] The two door openings 11 and the corresponding opening door units 2 work independently, controlling the entry and exit of the roll film of the corresponding layer, so as to achieve precise layered operation.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An automatic door of a curing oven, comprising a door frame (1) fixedly installed on the front of a curing oven, characterized in that, The door frame (1) is provided with two door openings (11) communicating with the interior of the curing room, and the front of each of the two door openings (11) is provided with an opening door unit (2). The opening door unit (2) comprises a first door leaf (21), a second door leaf (22) and a driving assembly (23), the first door leaf (21) and the second door leaf (22) are oppositely arranged on the front of the door frame (1), and the driving assembly (23) can drive the first door leaf (21) and the second door leaf (22) to rotate relative to each other, the outer side of the second door leaf (22) is provided with a first sealing groove (221), and the outer side of the first door leaf (21) is fixedly connected with a first sealing strip (211), and the first sealing strip (211) is located in the first sealing groove (221).

2. An automatic door for an automatic out-of-oven curing oven according to claim 1, wherein A second sealing groove (222) is formed in the inner wall of the first sealing groove (221), and a second sealing strip (212) is fixedly connected to the outer side of the first sealing strip (211), and the second sealing strip (212) is located in the second sealing groove (222).

3. An automatic door for an automatic out-of-oven curing oven according to claim 2, wherein The end of the first sealing strip (211) is chamfered.

4. An automatic door for an automatic out-of-oven curing oven according to claim 1, wherein The driving assembly (23) comprises a servo motor (231), two fixed blocks (232), a transmission rod (233) and two rotating rods (234), the servo motor (231) and the two fixed blocks (232) are fixedly connected to the door frame (1), and the transmission rod (233) is rotatably connected between the two fixed blocks (232).

5. An automatic door for an automatic out-of-oven curing chamber according to claim 4, wherein The output end of the servo motor (231) is in transmission connection with the end of the transmission rod (233), the two rotating rods (234) are respectively inserted into the interiors of the first door leaf (21) and the second door leaf (22), and the transmission rod (233) is in transmission connection with the two rotating rods (234).

6. An automatic door for an automatic out-of-oven curing chamber according to claim 5, wherein, The two ends of the transmission rod (233) extend into the interiors of the two fixed blocks (232) and are fixedly connected with first bevel gears, the first bevel gears are rotatably connected in the interiors of the fixed blocks (232), and the ends of the rotating rods (234) extend into the interiors of the fixed blocks (232) and are fixedly sleeved with second bevel gears, and the first bevel gears are in meshing connection with the second bevel gears.

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