A kiln door lifting device for a three-dimensional curing kiln and its curing system

Abstract

The present application provides a kiln door lifting device for a three-dimensional curing kiln and its curing system. Among them, a kiln door lifting device for a three-dimensional curing kiln includes a first kiln door lifting device and a second kiln door lifting device. The first kiln door lifting device is used for the opening and closing of the lower-layer kiln door. The first kiln door lifting device is integrally arranged with the three-dimensional curing kiln. The first kiln door lifting device includes a baffle arranged at the opening of the lower-layer kiln door and a control part for controlling the up-and-down movement of the baffle. The second kiln door lifting device is used for the opening and closing of the upper-layer kiln door. The second kiln door lifting device is arranged opposite to the kiln door, and the second kiln door lifting device is separately arranged from the three-dimensional curing kiln. The present application uses the first kiln door lifting device and the second kiln door lifting device to control the lower-layer kiln door and the upper-layer kiln door respectively, so that the upper and lower kiln doors can be controlled separately without affecting each other, effectively improving the work efficiency and effectively reducing the working intensity of the stacker.

Description

Technical Field

[0001] The present application relates to the technical field of precast component production equipment, and particularly relates to a kiln door lifting device for a three-dimensional curing kiln. Background Art

[0002] Currently, during the production process of precast components such as floor slabs, the pressed plates need to enter a curing kiln with specific humidity and temperature for curing to ensure the final quality of the plates. The opening work of the kiln door of a traditional three-dimensional curing kiln requires the cooperation of additional devices. For example, the opening mechanism of a stacker is used to open and close the kiln door.

[0003] In the existing curing kiln structure design, in order to effectively utilize space, reduce the floor area, improve work efficiency, etc., a double-layer or multi-layer three-dimensional curing kiln structure is adopted. During the use of the three-dimensional curing kiln, the opening mechanism of the stacker is required to lift the plates to a predetermined height and then send them into the curing kiln. Each time the stacker is used to perform the opening action, no matter which layer of the kiln door needs to be opened, the stacker can only lift all the curing kiln doors above that layer upward together. When precast components need to be placed in the lowest layer, all the curing kiln doors must be lifted upward together. This undoubtedly increases the workload of the stacker, shortens the service life and use accuracy of the stacker and the curing kiln door, and limits the use of the entire curing kiln, and it is impossible to flexibly control the opening size according to the actual height of the precast components.

[0004] CN109538057A discloses a kiln door opening and closing device, including a bracket mechanism and a kiln door state detection component. The kiln door state detection component is connected to the bracket mechanism and is used to detect the state of the kiln door. The kiln door opening and closing device provided by this invention can detect the state of the kiln door, enabling people to discover and solve problems in a timely manner. This invention also uses the kiln door opening and closing device of the stacker to open and close the kiln door of the curing kiln. This structure is not applicable to a three-dimensional curing kiln, that is, it is not applicable to the flexible and independent opening work of the kiln doors of a multi-layer three-dimensional curing kiln. Summary of the Invention

[0005] In order to solve the above technical problems, the present application provides a kiln door lifting device for a three-dimensional curing kiln and its curing system. Among them, a kiln door lifting device for a three-dimensional curing kiln includes a first kiln door lifting device and a second kiln door lifting device. The first kiln door lifting device is used for the opening and closing work of the lower-layer kiln door. The first kiln door lifting device is integrally provided with the three-dimensional curing kiln. The first kiln door lifting device includes a baffle provided at the opening of the lower-layer kiln door and a control part for controlling the up and down movement of the baffle. The second kiln door lifting device is used for the opening and closing work of the upper-layer kiln door. The second kiln door lifting device is arranged opposite to the kiln door and is separately provided from the three-dimensional curing kiln.

[0006] In this application, a first kiln door lifting device is provided at the lower-layer kiln door, and the baffle is equivalent to the lower-layer kiln door. Such a setting enables the lower-layer kiln door to be independently controlled for opening and closing, and the control unit can adjust the opening size according to the specifications of the precast components, making the application more flexible. The upper-layer kiln door is controlled by a second kiln door lifting device. In this way, the upper and lower-layer kiln doors can be controlled separately without affecting each other, effectively improving the working efficiency and reducing the working intensity of the stacker.

[0007] Furthermore, the control unit includes a driving wheel provided at the bottom end of the baffle and a driven wheel provided above the baffle. The control unit further includes a flat belt, one end of the flat belt is connected to the driving wheel, and the other end of the flat belt is connected to the upper end of the baffle through the driven wheel.

[0008] Furthermore, the control unit includes a first control part and a second control part. The first control part is provided on the left side of the baffle, and the second control part is provided on the right side of the baffle. The first control part includes a first driving wheel, and the second control part includes a second driving wheel. The first driving wheel is connected to the power source through a first connecting rod, and the second driving wheel is connected to the power source through a second connecting rod. The power source is provided in the middle below the baffle.

[0009] Furthermore, the baffle is provided inside the upper-layer kiln door. In this application, the baffle is provided inside the upper-layer kiln door, making the upper-layer kiln door and the lower-layer kiln door independent of each other and not affecting each other's work.

[0010] Furthermore, the control unit further includes a limiting part for limiting the movement track of the baffle. The limiting part includes sliders provided at both ends of the baffle. Sliders are provided on both sides of the baffle, and chutes are provided on the three-dimensional curing kiln frame and are matched with the sliders, enabling the baffle to move up and down along the chutes.

[0011] Furthermore, the second kiln door lifting device includes a main frame, a bracket is provided on the main frame, the bracket moves up and down in the main frame, and a connecting part matched with the upper-layer kiln door is provided at one end of the bracket close to the upper-layer kiln door. The connecting part of the bracket in the second kiln door lifting device is connected in cooperation with the connecting part provided outside the upper-layer kiln door, and the up and down movement of the bracket is used to drive the opening or closing of the upper-layer kiln door.

[0012] Further, both sides of the bracket are connected to the main frame through driving parts. A groove is provided on one side of the main frame close to the bracket, and the driving parts are all arranged in the groove. The driving parts include driving motors and chain transmission structures. The bracket is connected to the transmission chain of the chain transmission structure, and the driving motors drive the bracket to move up and down through the chain transmission structures.

[0013] Further, a guiding part for defining the movement track of the bracket is also provided on the bracket. The guiding part includes guiding wheels. One end of the guiding wheel is connected to the bracket through a connecting part, and the other end of the guiding wheel is arranged in cooperation with the edge of the groove. In this application, guiding wheels are arranged on the bracket, so that the bracket can move up and down along the same path.

[0014] Further, the connecting part includes a connecting base. The bottom end of the connecting base is connected to the bracket, the upper end of the connecting base is connected to the guiding wheel through a connecting support. A number of adjusting holes are provided on the connecting support, and connecting screws pass through the adjusting holes to connect the connecting support and the connecting base. A pressing screw is also provided on the connecting base. The pressing screw is arranged on one side of the connecting base away from the guiding wheel. One end of the pressing screw is movably connected to the connecting base, and the other end of the pressing screw is used to press one end of the connecting support close to the connecting base. In this application, the distance between the guiding wheel and the main frame can be adjusted. Due to the increase in the number of times the bracket moves up and down, the guiding wheel wears more frequently. After a long use time, the gap between the guiding wheel and the main frame becomes larger and larger, and it can no longer play a guiding role, and the movement of the bracket is not accurate, and situations that affect the movement accuracy such as tilting may occur. This application uses a structure in which the connecting base and the connecting support are movably adjustable, effectively avoiding the occurrence of the above situations. The setting of the pressing screw in this application improves the stability of the structure.

[0015] This application also discloses a curing system for precast components, including a stacker, a three-dimensional curing kiln and a kiln door lifting device. The kiln door lifting device includes a first kiln door lifting device and a second kiln door lifting device. The first kiln door lifting device is arranged at the lower kiln door of the three-dimensional curing kiln, and the second kiln door lifting device is arranged on the stacker. The second kiln door lifting device is arranged in cooperation with the upper kiln door of the three-dimensional curing kiln.

[0016] The beneficial effects of this application are as follows:

[0017] 1. By arranging the first kiln door lifting device at the lower kiln door in this application, and the baffle is equivalent to the lower kiln door, such a setting enables the lower kiln door to be independently controlled to open and close, and the control part can be used to adjust the opening size according to the specifications of the precast components, making the application more flexible;

[0018] 2. In this application, the upper kiln door is controlled by the second kiln door lifting device. In this way, the upper and lower kiln doors can be controlled separately without affecting each other, effectively improving the work efficiency and effectively reducing the working intensity of the stacker;

[0019] 3. The distance between the guide wheel and the main frame in this application can be adjusted, effectively improving the use accuracy of the guide wheel and effectively avoiding the situation that the use accuracy is affected due to the wear of the guide wheel;

[0020] 4. The setting of the pressing screw in this application improves the structural stability;

[0021] 5. This application has the characteristics of simple operation, strong safety, strong practicability and is suitable for popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0023] Figure 1 is a schematic structural diagram of a kiln door lifting device in this application;

[0024] Figure 2 is Figure 1 a left view of the kiln door lifting device in

[0025] Figure 3 is a schematic structural diagram of the first kiln door lifting device in this application;

[0026] Figure 4 is Figure 3 a left view of the kiln door lifting device in

[0027] Figure 5 is Figure 1 a partial enlarged view of part A in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] In order to more clearly illustrate the overall concept of the present application, the following will be described in detail by way of examples in conjunction with the drawings of the specification.

[0029] In the following description, many specific details are set forth in order to fully understand the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below.

[0030] In addition, in the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0031] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0032] In the present application, unless otherwise clearly defined and limited, the terms such as "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or a communication connection; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0033] In the present application, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be the direct contact between the first and second features, or the indirect contact between the first and second features through an intermediate medium. In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

[0034] Embodiment 1

[0035] A kiln door lifting device for a three-dimensional curing kiln, as Figures 1 - 4As shown in the figure, it includes a first kiln door lifting device 1 and a second kiln door lifting device 2. Among them, the first kiln door lifting device 1 is used for the opening and closing of the lower-layer kiln door 91. The first kiln door lifting device 1 is integrally arranged with the three-dimensional curing kiln. The first kiln door lifting device 1 includes a baffle 11 arranged at the opening of the lower-layer kiln door 91 and a control part 12 for controlling the up and down movement of the baffle 11. The control part 12 includes a driving wheel 121 arranged at the bottom end of the baffle 11 and a driven wheel 122 arranged above the baffle 11. The control part 12 further includes a flat belt 123. One end of the flat belt 123 is connected to the driving wheel 121, and the other end of the flat belt 123 is connected to the upper end of the baffle 11 through the driven wheel 122. The control part 12 includes a first control part 1201 and a second control part 1202. The first control part 1201 is arranged on the left side of the baffle 11, and the second control part 1202 is arranged on the right side of the baffle 11. The first control part 1201 includes a first driving wheel 1211, and the second control part 1202 includes a second driving wheel 1212. The first driving wheel 1211 is connected to a power source 14 through a first connecting rod 13, and the second driving wheel 1212 is connected to the power source 14 through a second connecting rod 15. The power source 14 is arranged in the middle below the baffle 11; the baffle 11 is arranged inside the upper-layer kiln door 92.

[0036] Among them, the second kiln door lifting device 2 is used for the opening and closing of the upper-layer kiln door 92. The second kiln door lifting device 2 is arranged opposite to the kiln door, and the second kiln door lifting device 2 is separately arranged from the three-dimensional curing kiln.

[0037] When this embodiment is in use, the size of the upper-layer kiln door 92 is relatively small, and the size of the lower-layer kiln door 91 is relatively higher than that of the upper-layer kiln door 92. In this way, when the height of the precast member to be cured is relatively high and it is more suitable to be placed on the lower-layer kiln door 91, the power source 14 is started. The power source 14 drives the first connecting rod 13 and the second connecting rod 15 to rotate simultaneously. The first connecting rod 13 drives the first driving wheel 1211 to rotate, and the second connecting rod 15 drives the second driving wheel 1212 to rotate. Under the rotation of the first driving wheel 1211, the first flat belt 123 is wound around the first driving wheel 1211. Similarly, the second driving wheel 1212 winds the second flat belt 123 around the second driving wheel 1212. The movement of the flat belt 123 drives the driven wheel 122 to rotate as well. Under the pulling of the first flat belt 123 and the second flat belt 123, the baffle 11 is pulled up, so that the lower-layer kiln door 91 is opened, and the precast member is placed into the kiln body for curing. When it is necessary to close the lower-layer kiln door 91, the driving wheel 121 makes a reverse rotational movement, and then the baffle 11 is lowered and the lower-layer kiln door 91 is closed.

[0038] It can be understood that in order to make the movement of the baffle 11 more stable, sliders are arranged on both sides of the baffle 11, and chutes are arranged on the curing kiln frame. When the baffle 11 moves up and down, it moves up and down along the chutes.

[0039] It can be understood that in this embodiment, the second kiln door lifting device 2 can use a kiln door opening and closing device disclosed in CN109538057A.

[0040] Embodiment 2

[0041] Based on Embodiment 1, this embodiment further describes the structure of the second kiln door lifting device 2, as Figure 1 and Figure 5 shown, the second kiln door lifting device 2 includes a main frame 21. A bracket 22 is arranged on the main frame 21. The bracket 22 moves up and down in the main frame 21. One end of the bracket 22 close to the upper kiln door 92 is provided with a connecting piece that cooperates with the upper kiln door 92.

[0042] Both sides of the bracket 22 are connected to the main frame 21 through a driving part 3. A groove 211 is arranged on one side of the main frame 21 close to the bracket 22. The driving parts 3 are all arranged in the groove 211. The driving part 3 includes a driving motor and a chain transmission structure. The bracket 22 is connected to the transmission chain of the chain transmission structure. The driving motor drives the bracket 22 to move up and down through the chain transmission structure. A guiding part 4 for defining the movement track of the bracket 22 is also arranged on the bracket 22. The guiding part 4 includes a guiding wheel 41. One end of the guiding wheel 41 is connected to the bracket 22 through a connecting part 5. The other end of the guiding wheel 41 is arranged in cooperation with the edge of the groove 211. The connecting part 5 includes a connecting base 51. The bottom end of the connecting base 51 is connected to the bracket 22. The upper end of the connecting base 51 is connected to the guiding wheel 41 through a connecting support 52. A number of adjusting holes 6 are arranged on the connecting support 52. A connecting screw 7 passes through the adjusting holes 6 to connect the connecting support 52 and the connecting base 51. A pressing screw 8 is also arranged on the connecting base 51. The pressing screw 8 is arranged on one side of the connecting base 51 away from the guiding wheel 41. One end of the pressing screw 8 is movably connected to the connecting base 51. The other end of the pressing screw 8 is used to press one end of the connecting support 52 close to the connecting base 51.

[0043] When this embodiment is in use, when the bracket 22 moves up and down in the main frame 21, on the one hand, the bracket 22 moves up and down under the action of the driving part 3. However, in order to make the movement of the bracket 22 more stable and accurate, before the bracket 22 moves, the guiding wheel 41 is adjusted to a suitable position, that is, the contact force between the guiding wheel 41 and the main frame 21 is adjusted so that the guiding wheel 41 can play a better guiding role; during adjustment, the connecting screw 7 is loosened, the positional relationship between the connecting base 51 and the connecting bracket is adjusted, and then the connecting screw 7 is tightened; then the pressing screw 8 is tightened to play a further fixing role.

[0044] Embodiment 3

[0045] This embodiment discloses a curing system for precast components, as Figure 1 and Figure 2As shown in the figure, it includes a stacker, a three-dimensional curing kiln, and the kiln door lifting device in Embodiment 1 or Embodiment 2. The kiln door lifting device includes a first kiln door lifting device 1 and a second kiln door lifting device 2. The first kiln door lifting device 1 is arranged at the lower kiln door 91 of the three-dimensional curing kiln, and the second kiln door lifting device 2 is arranged on the stacker. The second kiln door lifting device 2 is cooperatively arranged with the upper kiln door 92 of the three-dimensional curing kiln.

[0046] When this embodiment is in use, when opening the lower kiln door 91, it can be opened according to the method of Embodiment 1. When opening the upper kiln door 92, in the prior art, generally, the second kiln door lifting device 2 is connected to the stacker and used. The stacker drives the second kiln door lifting device 2 to move to the position of the kiln door to be opened and then opens the kiln door.

[0047] Each embodiment in this specification is described in a progressive manner. For the same or similar parts among the embodiments, reference can be made to each other. The key point of each embodiment is to illustrate the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can refer to the partial description of the method embodiment.

[0048] The above description is only for the embodiments of the present application and is not intended to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

Claims

1. A kiln door lifting device for a three-dimensional curing kiln, characterized in that, Including: A first kiln door lifting device, which is used for the opening and closing of the lower-layer kiln door. The first kiln door lifting device is integrally provided with the three-dimensional curing kiln. The first kiln door lifting device includes a baffle arranged at the opening of the lower-layer kiln door and a control part for controlling the up and down movement of the baffle; A second kiln door lifting device, which is used for the opening and closing of the upper-layer kiln door. The second kiln door lifting device is arranged opposite to the kiln door, and the second kiln door lifting device is separately provided from the three-dimensional curing kiln; The second kiln door lifting device includes a main frame, and a bracket is arranged on the main frame. The bracket moves up and down in the main frame, and a connecting piece for cooperating with the upper-layer kiln door is arranged at one end of the bracket close to the upper-layer kiln door; Both sides of the bracket are connected to the main frame through driving parts. A groove is arranged on the main frame close to the bracket, and the driving parts are all arranged in the groove. The driving parts include driving motors and chain transmission structures. The bracket is connected to the transmission chain of the chain transmission structure, and the driving motors drive the bracket to move up and down through the chain transmission structures; A guiding part for limiting the movement track of the bracket is further arranged on the bracket. The guiding part includes guiding wheels. One end of the guiding wheel is connected to the bracket through a connecting part, and the other end of the guiding wheel is arranged in cooperation with the edge of the groove.

2. The kiln door lifting device for a three-dimensional curing kiln according to claim 1, characterized in that, The control part includes a driving wheel arranged at the bottom end of the baffle and a driven wheel arranged above the baffle. The control part further includes a flat belt. One end of the flat belt is connected to the driving wheel, and the other end of the flat belt is connected to the upper end of the baffle through the driven wheel.

3. The kiln door lifting device for a three-dimensional curing kiln according to claim 2, characterized in that, The control part includes a first control part and a second control part. The first control part is arranged on the left side of the baffle, and the second control part is arranged on the right side of the baffle. The first control part includes a first driving wheel, and the second control part includes a second driving wheel. The first driving wheel is connected to a power source through a first connecting rod, and the second driving wheel is connected to the power source through a second connecting rod. The power source is arranged in the middle below the baffle.

4. The kiln door lifting device for a three-dimensional curing kiln according to claim 3, characterized in that, The baffle is arranged inside the upper-layer kiln door.

5. The kiln door lifting device for a three-dimensional curing kiln according to claim 3, characterized in that, The control part further includes a limiting part for limiting the movement track of the baffle. The limiting part includes sliders arranged at both ends of the baffle.

6. The kiln door lifting device for a three-dimensional curing kiln according to claim 1, characterized in that, The connecting part includes a connecting base. The bottom end of the connecting base is connected to the bracket, and the upper end of the connecting base is connected to the guiding wheel through a connecting support. A number of adjusting holes are arranged on the connecting support, and connecting screws pass through the adjusting holes to connect the connecting support and the connecting base. A pressing screw is further arranged on the connecting base. The pressing screw is arranged on the side of the connecting base away from the guiding wheel. One end of the pressing screw is movably connected to the connecting base, and the other end of the pressing screw is used for pressing one end of the connecting support close to the connecting base.

7. A curing system for precast components, characterized in that, Comprising a stacker, a three-dimensional curing kiln, and a kiln door lifting device according to any one of claims 1-6, the kiln door lifting device includes a first kiln door lifting device and a second kiln door lifting device, the first kiln door lifting device is arranged at the lower kiln door of the three-dimensional curing kiln, the second kiln door lifting device is arranged on the stacker, and the second kiln door lifting device is cooperatively arranged with the upper kiln door of the three-dimensional curing kiln.

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