Automatic door opening and closing mechanism and baking oven

Abstract

The utility model provides an automatic door opening and closing mechanism and a baking oven. The automatic door opening and closing mechanism comprises an oven door body and a driving assembly. One side of the oven door body is hinged to the edge of the front wall of the oven body, a hinge shaft is a vertical shaft, the oven door body has a closed state that the oven door body swings to be attached to the wall face of the front wall of the oven body in a sealed mode, and in the closed state, the oven door body is used for covering an oven door opening formed in the front wall of the oven body. The furnace door body also has an open state of swinging to the side of the furnace door opening; the driving assembly is connected to the oven body and located on the periphery of the oven door opening. The output end of the driving assembly is connected with the oven door body to drive the oven door body to swing. According to the automatic door opening and closing mechanism and the baking oven, the structure is simple and stable, and the relative movement abrasion phenomenon between the oven door body and the front wall face of the oven body in the opening and closing process can be avoided, so that the risk that a sealing piece deforms and is damaged is reduced, and the sealing reliability of the oven door opening in the closed state of the oven door body is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to food baking equipment technical field, concretely relates to an automatic door opening and closing mechanism and baking oven. BACKGROUND

[0002] Baking refers to the process of making materials dehydrate and dry and hard through dry heat below the ignition point of the materials, which is an indispensable step for making bread and cake products, and after baking, a series of chemical changes such as starch gelatinization and protein denaturation occur, so as to achieve the purpose of ripening. With the acceleration of today's life rhythm, there are more and more people who choose to have baked foods that suit their taste as breakfast in a bakery, and in order to process fresh foods before breakfast, the bakery usually needs to start a series of fermentation and baking work in advance at night, which consumes a lot of physical energy of the workers, so there is a great demand for the development of automatic baking equipment.

[0003] For the automation of baking equipment such as ovens and air furnaces, the first problem to be solved is how to realize the automatic opening and closing of the oven door. Some manufacturers use a lifting oven door structure, but the sealing element is damaged greatly during the lifting of the oven door, so the use effect is not ideal. In addition, some manufacturers improve the structure of the lifting oven door and add the function of lifting after pushing the oven door open, thereby avoiding excessive wear of the sealing element during the lifting of the oven door. However, this way has a lot of unstable factors due to the complex structure, and the problems of loose sealing of the oven door and deformation of the opening and closing action are prone to occur. Based on the above status, it is urgent to develop a new oven door opening and closing structure to meet the application requirements of automatic baking equipment. SUMMARY

[0004] The utility model embodiment provides an automatic door opening and closing mechanism and a baking oven, which aims to simplify the structure of the automatic oven door, improve the sealing reliability and opening and closing stability of the oven door.

[0005] To achieve the above-mentioned purpose, the utility model adopts the technical scheme: in the first aspect, an automatic door opening and closing mechanism is provided, which comprises an oven door body and a driving assembly. One side of the oven door body is hinged to the edge of the front wall of the oven body, and the hinge shaft is a vertical shaft. The oven door body has a closed state of being swung to be sealed and fitted with the front wall surface of the oven body, and in the closed state, the oven door body is used to cover the oven door hole opened in the front wall of the oven body. The oven door body also has an open state of being swung to the side of the oven door hole. The driving assembly is connected to the oven body and located outside the oven door hole. The output end of the driving assembly is connected with the oven door body to drive the oven door body to swing.

[0006] With reference to the first aspect, in a possible implementation manner, the driving assembly comprises a telescopic driving member and a connecting rod; the telescopic driving member is connected to the lower edge of the front wall of the oven body, one end of the connecting rod is hinged to the output end of the telescopic driving member, and the other end is hinged to the oven door body; wherein the axial directions of the two hinged shafts of the connecting rod are consistent with the axial direction of the hinged shaft of the oven door body.

[0007] In some embodiments, the middle region of the oven door body is provided with an observation window, and a surface glass is installed on the observation window.

[0008] For example, the inner wall of the oven door body is provided with a baffle around the observation window, an inner glass is installed on the baffle, and a heat insulation cavity is formed between the inner glass and the surface glass; wherein in the closed state, the baffle is sealingly attached to the wall surface of the front wall of the oven body.

[0009] For example, the oven door body is provided with a connecting lug on the side close to the hinged shaft, the side edge of the baffle is hinged to the connecting lug, the other side edge is provided with a magnetic member, and a first sealing strip is arranged between the baffle and the inner wall of the oven door body; wherein the magnetic member is used to attract the oven door body so as to press the first sealing strip between the baffle and the inner wall of the oven door body.

[0010] In a possible implementation manner, a second sealing strip is arranged on the plate surface of the baffle away from the surface glass and / or the front wall of the oven body, and the second sealing strip is arranged around the oven door hole; wherein in the closed state, the baffle and the wall surface of the front wall of the oven body press the second sealing strip.

[0011] In some embodiments, a sealing groove is arranged on the plate surface of the baffle away from the surface glass and / or the front wall of the oven body, and the second sealing strip is embedded in the sealing groove.

[0012] For example, the oven door body is provided with an electromagnetic lock on the side away from the hinged shaft, and in the closed state, the electromagnetic lock is locked with a lock hole on the oven body.

[0013] For example, the automatic door opening and closing mechanism further comprises a controller arranged on the front wall of the oven body and a visual camera, and the visual camera and the driving assembly are electrically connected to the controller; wherein the visual camera is used to detect the action of the material taking robot and generate an electronic signal feedback to the controller, and the controller is used to control the action of the driving assembly according to the electronic signal.

[0014] The automatic door opening and closing mechanism has the advantages that, compared with the prior art, the automatic door opening and closing mechanism, the furnace door body is hinged to the edge of the front wall of the oven body on one side to form a front swing opening and closing structure, the automatic opening and closing of the furnace door body can be realized by setting the driving assembly outside the furnace door hole to apply a swing driving force to the furnace door body, the structure is simple and stable, and the relative movement and wear phenomenon between the furnace door body and the front wall of the oven body during the opening and closing of the furnace door body can be avoided, thereby reducing the risk of deformation and damage of the sealing element and improving the sealing reliability of the furnace door hole in the closed state of the furnace door body.

[0015] In the second aspect, the utility model embodiment further provides a baking oven, which comprises the automatic door opening and closing mechanism.

[0016] The baking oven has the advantages that, compared with the prior art, the baking oven adopts the automatic door opening and closing mechanism, the furnace door body is hinged to the edge of the front wall of the oven body on one side to form a front swing opening and closing structure, the automatic opening and closing of the furnace door body can be realized by setting the driving assembly outside the furnace door hole to apply a swing driving force to the furnace door body, the structure is simple and stable, and the relative movement and wear phenomenon between the furnace door body and the front wall of the oven body during the opening and closing of the furnace door body can be avoided, thereby reducing the risk of deformation and damage of the sealing element and improving the sealing reliability of the furnace door hole in the closed state of the furnace door body. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The utility model provides a three -dimensional structure schematic diagram of automatic door opening and closing mechanism in the closed state of furnace door body for the embodiment of the utility model;

[0018] Figure 2 The utility model provides a three -dimensional structure schematic diagram of automatic door opening and closing mechanism in the open state of furnace door body for the embodiment of the utility model;

[0019] Figure 3 For along Figure 1 The sectional structure schematic diagram of A-A line;

[0020] Figure 4 For Figure 2 The local enlarged structure schematic diagram of B place;

[0021] Figure 5 For Figure 3 The local enlarged structure schematic diagram of C place.

[0022] In the figure: 10, the furnace door body; 100, the observation window; 11, the surface glass; 12, the baffle; 121, the inner layer glass; 122, the magnetic attraction piece; 13, the heat insulation cavity; 14, the connecting lug; 15, the first sealing strip; 16, the electromagnetic lock; 17, the handle lock; 20, the driving assembly; 21, the telescopic driving piece; 22, the connecting rod; 30, the oven body; 300, the furnace door hole; 40, the sealing groove; 41, the second sealing strip; 50, the controller; 60, the visual camera. DETAILED DESCRIPTION

[0023] In order to make the technical problems, technical schemes and beneficial effects of the utility model to be solved clearer and more apparent, the utility model will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and not to limit the utility model.

[0024] It should be noted that when an element is referred to as being "disposed on", "connected to" another element, it can be directly on the other element or indirectly on the other element. It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. The terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or several of the features. In the description of the present application, the meaning of "a plurality of", "several" is two or more, unless otherwise specifically limited.

[0025] Please refer to Figures 1 to 5 , the automatic door opening and closing mechanism provided by the utility model will be described. The automatic door opening and closing mechanism comprises a furnace door body 10 and a driving assembly 20. One side of the furnace door body 10 is hinged to the front wall edge of the oven body 30 with a vertical hinge shaft. The furnace door body 10 has a closed state in which it is swung to be sealed and fitted with the front wall surface of the oven body 30. In the closed state, the furnace door body 10 is used to cover the furnace door hole 300 formed in the front wall of the oven body 30. The furnace door body 10 also has an open state in which it is swung to the side of the furnace door hole 300. The driving assembly 20 is connected to the oven body 30 and located at the periphery of the furnace door hole 300. The output end of the driving assembly 20 is connected to the furnace door body 10 to drive the furnace door body 10 to swing.

[0026] It needs to be explained that in order to ensure the heat insulation performance of the oven door body 10 in the closed state, the oven door body 10 in the embodiment can adopt a double-layer sheet metal structure, and the intermediate air layer is used to block heat transfer, so as to avoid the temperature of the area close to the oven door hole 300 inside the oven body 30 from dropping due to the heat transfer of the oven door body 10 to the outside. In addition, in order to avoid the sealing element near the hinge shaft of the oven door body 10 from being excessively worn during the opening and closing process due to the close distance between the oven door body 10 and the front wall of the oven body, two forwardly extending connecting plates can be arranged on the front wall of the oven body 30 at intervals upward and downward, and the hinge shaft vertically penetrating the side edge of the oven door body 10 is penetrated through the connecting plates to form a rotating fit, so that the hinge of the oven door body 10 and the oven body 30 is realized. At the same time, considering the sealing effect between the oven door body 10 and the front wall of the oven body 30 in the closed state, a convex sealing strip can be arranged around the oven door hole 300 on the front wall of the oven body 30, and reliable sealing is formed by pressing the sealing strip after the oven door body 10 is closed.

[0027] The driving assembly 20 in the embodiment can be a rotary drive, and the output end is connected with the hinge shaft of the oven door body 10. Only the oven door body 10 and the hinge shaft are fixed (the hinge shaft is rotationally fitted with the oven body 30), and the oven door body 10 can be swung by driving the rotation of the hinge shaft. The driving assembly 20 can also be a telescopic drive, and the oven door body 10 is connected with the telescopic output end to drive the oven door body 10 to swing around the hinge shaft to realize opening and closing. In addition, whether it is a rotary drive or a telescopic drive, the driving assembly 20 can be a drive with an output self-locking function, which can ensure the stability of the oven door body 10 in the closed state by opening or closing the self-locking function.

[0028] It needs to be explained that the handle lock 17 can be arranged on the oven door body 10 in the embodiment, and the handle lock 17 is locked with the oven body 30 to keep the oven door body 10 in the closed state during the non-working period. When automatic baking of food is needed, the operator can unlock the handle lock 17, so that the oven door body 10 can be driven by the driving assembly 20 to perform corresponding opening and closing actions according to the automatic control program.

[0029] The automatic opening and closing door mechanism provided in the embodiment can realize automatic opening and closing of the oven door body 10 by applying a swinging driving force to the oven door body 10 through the driving assembly 20 arranged outside the oven door hole 300, which not only has a simple and stable structure, but also can avoid the relative movement and wear between the oven door body 10 and the front wall of the oven body 30 during the opening and closing process, thereby reducing the risk of deformation and damage of the sealing element and improving the sealing reliability of the oven door hole 300 in the closed state of the oven door body 10.

[0030] In some possible implementation manners, please refer toFigure 2 and Figure 4 The driving assembly 20 comprises a telescopic driving member 21 and a connecting rod 22; the telescopic driving member 21 is connected to the lower edge of the front wall of the oven body 30, one end of the connecting rod 22 is hinged to the output end of the telescopic driving member 21, and the other end is hinged to the oven door body 10; wherein the axial directions of the two hinged shafts of the connecting rod 22 are consistent with the axial direction of the hinged shaft of the oven door body 10.

[0031] The telescopic driving member 21 can be an electric push rod or a telescopic cylinder, and an electric push rod with more stable power output and self-locking function can be preferably used as the telescopic driving member 21. Considering that the telescopic driving member 21 needs to have a corresponding swing degree of freedom itself when directly driving the oven door body 10 to swing, the telescopic driving member 21 will swing forward and occupy a certain space in front of the oven body 30 when the oven door body 10 is opened, which may affect the action of the material taking robot. Therefore, the connecting rod 22 is added between the output end of the telescopic driving member 21 and the oven door body 10, so that the telescopic driving member 21 can drive the connecting rod 22 to swing, and then the oven door body 10 is pushed or pulled by the connecting rod 22 to realize the opening and closing action. Since the connecting rod 22 can be closer to the hinged shaft of the oven door body 10, the swing amplitude and the occupied space of the connecting rod 22 are small, and the telescopic driving member 21 can always be kept in a fixed state below the oven door hole 300, thereby reducing the occupation of the space in front of the oven door hole 300, and further leaving more action space for the material taking robot.

[0032] As a specific embodiment of the oven door body 10, please refer to Figures 1 to 3 An observation window 100 is formed in the middle region of the oven door body 10, and a surface glass 11 is installed on the observation window 100. By forming the observation window 100 and installing the surface glass 11, the view of the inside of the oven body 30 can be obtained through the surface glass 11 at any time in the closed state, which is beneficial to reduce the frequency of artificial opening of the oven door body 10, thereby improving the service life.

[0033] As a variant embodiment of the oven door body 10, please refer to Figures 1 to 3 A baffle 12 is arranged on the inner wall of the oven door body 10 around the observation window 100, an inner glass 121 is installed on the baffle 12, and a heat insulation cavity 13 is formed between the inner glass 121 and the surface glass 11; wherein in the closed state, the baffle 12 is sealingly attached to the wall surface of the front wall of the oven body 30.

[0034] By arranging the baffle 12 and installing the inner glass 121, a double-glazing structure can be formed in the observation window 100 area, thereby improving the overall heat insulation performance of the oven door body 10 by using the heat insulation cavity 13 between the inner glass 121 and the surface glass 11, and improving the heat preservation performance of the observation window 100 area of the oven door body 10 in the closed state.

[0035] Specifically, such as Figures 3 to 5 As shown, in this embodiment, the furnace door body 10 is provided with a connecting ear 14 on one side near its hinge axis, one side edge of the surrounding plate 12 is hinged to the connecting ear 14, and the other side edge is provided with a magnetic suction member 122. A first sealing strip 15 is provided between the surrounding plate 12 and the inner wall of the furnace door body 10; wherein, the magnetic suction member 122 is used to attract the furnace door body 10 so that the surrounding plate 12 and the inner wall of the furnace door body 10 press the first sealing strip 15. The hinged connection between the enclosure 12 and the furnace door body 10 allows the inner glass 121 connected to the enclosure 12 to swing along with the enclosure 12 after the furnace door body 10 is opened, by pulling the enclosure 12 away from its hinge axis. This opens the heat insulation cavity 13, facilitating the cleaning of the surfaces of the outer glass 11 and the inner glass 121 facing the heat insulation cavity 13. This is especially useful for cleaning condensation on the outer glass 11 and the inner glass 121 due to the temperature difference between the inside and outside, ensuring the transparency of the observation window 100. After cleaning, the enclosure 12 can be swung back and reattached to the furnace door body 10 using the magnetic suction 122. This allows the enclosure 12 and the furnace door body 10 to press against the first sealing strip 15, sealing the gap between them and ensuring the airtight connection between the enclosure 12 and the furnace door body 10.

[0036] It should be noted that, please refer to Figure 2 A second sealing strip 41 is provided on the side of the enclosure 12 facing away from the surface glass 11 and / or on the front wall of the oven body 30. The second sealing strip 41 surrounds the oven door opening 300. In the closed state, the enclosure 12 and the front wall of the oven body 30 press against the second sealing strip 41. By providing the second sealing strip 41, the contact sealing between the enclosure 12 and the front wall of the oven body 30 can be improved, thereby improving the sealing reliability of the oven door body 10 to the oven door opening 300.

[0037] To improve the connection reliability of the second sealing strip 41, such as Figure 5 As shown, a sealing groove 40 is provided on the surface of the enclosure 12 away from the surface glass 11 and / or on the front wall of the oven body 30, and the second sealing strip 41 is embedded in the sealing groove 40. Specifically, it is preferable to provide a sealing groove 40 around the oven door opening 300 on the front wall of the oven body 30 and embed the second sealing strip 41 therein. This can prevent the second sealing strip 41 from moving with the oven door body 10 during the opening and closing of the oven door body 10, thereby further reducing the risk of the second sealing strip 41 falling off and improving the sealing reliability.

[0038] It should be understood that, in this embodiment, please refer to... Figure 2The electromagnetic lock 16 is locked by the locking tongue of the electromagnetic lock 16 and the lock hole on the oven body 30, so that the closing state stability of the oven door body 10 is improved, the pressing force of the oven door body 10 on the front wall of the oven body 30 is avoided to affect the closing sealing performance, and the driving assembly 20 can release the acting force on the oven door body 10 when the oven door body 10 is in the closing state, so that the driving assembly 20 is only used for the opening and closing driving of the oven door body 10, and is not used for the opening and closing state maintaining of the oven door body 10, thereby the risk of deformation of the driving assembly 20 due to long-time stress is reduced, the service life is improved, and the long-term sealing reliability and opening and closing stability of the oven door body 10 are ensured.

[0039] In some embodiments, referring to Figure 1 and Figure 2 The automatic opening and closing door mechanism further comprises a controller 50 and a visual camera 60 arranged on the front wall of the oven body 30, and the visual camera 60 and the driving assembly 20 are electrically connected with the controller 50; wherein the visual camera 60 is used for detecting the action of the material taking manipulator and generating an electronic signal feedback to the controller 50, and the controller 50 is used for controlling the action of the driving assembly 20 according to the electronic signal.

[0040] It should be noted that the technology of the visual camera 60 and the controller 50 cooperating to form an automatic control system is prior art, and the specific principle will not be described here. In the embodiment, the working process is as follows: the visual camera 60 is used for capturing the action of the material taking manipulator and converting it into an electrical signal feedback to the controller 50, the controller 50 judges whether the material taking manipulator is to take material from the oven body 30 (or put material into the oven body 30) according to the electrical signal received, when it is judged to be yes, the driving assembly 20 is controlled to open the oven door body 10, and the oven door body 10 is closed after the material taking or material putting is completed, thereby realizing automatic material taking and putting.

[0041] Based on the same inventive concept, in combination with Figures 1 to 5 It is understood that the embodiment of the present application further provides a baking oven comprising the above-mentioned automatic opening and closing door mechanism.

[0042] Compared with the prior art, the baking oven provided by the embodiment adopts the automatic door opening and closing mechanism, the oven door body 10 is hinged to the front wall edge of the oven body 30 on one side to form a front swing opening and closing structure, and the automatic opening and closing of the oven door body 10 can be realized by applying a swing driving force to the oven door body 10 through the driving assembly 20 arranged outside the oven door hole 300. The structure is simple and stable, and the relative movement and wear phenomenon between the oven door body 10 and the front wall of the oven body 30 during the opening and closing process can be avoided, thereby reducing the risk of deformation and damage of the sealing element and improving the sealing reliability of the oven door hole 300 in the closed state of the oven door body 10.

[0043] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An automatic door opening mechanism characterized by, The oven door body is hinged to the front wall edge of the oven body with a vertical hinge shaft, and has a closed state in which it swings to seal against the front wall of the oven body, and an open state in which it swings to the side of the oven door hole.

2. The automatic door operator of claim 1, wherein, The driving assembly includes a telescopic driving member and a connecting rod.

3. The automatic door operator of claim 1, wherein, The middle region of the oven door body is provided with an observation window, and a surface glass is installed on the observation window.

4. The automatic door operator of claim 3, wherein the door operator is a swing door operator. The inner wall of the oven door body is provided with a surrounding plate around the observation window, and an inner glass is installed on the surrounding plate.

5. The automatic door operator of claim 4, wherein the door operator is a swing door operator. The oven door body is provided with a connecting lug near the hinge shaft, and the surrounding plate is hinged to the connecting lug at one side edge and provided with a magnetic member at the other side edge.

6. The automatic door operator of claim 4, wherein, The surrounding plate is provided with a second sealing strip on the surface away from the surface glass and / or the front wall of the oven body.

7. The automatic door operator of claim 6, wherein the door operator is a swing door operator. The surrounding plate is provided with a sealing groove on the surface away from the surface glass and / or the front wall of the oven body.

8. The automatic door operator of claim 1, wherein, The oven door body is provided with an electromagnetic lock away from the hinge shaft, and the electromagnetic lock is locked with a lock hole on the oven body in the closed state.

9. An automatic door opening mechanism according to any one of claims 1 to 8, wherein, The automatic opening and closing door mechanism further includes a controller and a visual camera provided on the front wall of the oven body, and the visual camera and the driving assembly are electrically connected to the controller.

10. A baking oven, characterized by The automatic opening and closing door mechanism includes the automatic opening and closing door mechanism according to any one of claims 1-9.

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