Sand core drying furnace for casting

Abstract

The utility model discloses a sand core drying furnace for casting, and aims to solve the problems that the existing sand core is inconvenient to place and the drying effect is limited in the drying process. The drying furnace comprises a drying furnace body and a plurality of sets of drying supports, and the distance between the drying supports is flexibly adjusted through cooperation of a height adjusting mechanism and a driving piece. The height adjusting mechanism comprises a closed mounting plate, a vertical plate and an equal-distance adjusting piece, and the distance between the supports is increased and decreased through movement of a sliding knob and a variable-distance movable block in a limiting groove. Through the design, sand cores can be conveniently placed and taken out, and meanwhile the drying efficiency and effect are improved. The drying furnace body is provided with transparent glass, the drying state can be observed conveniently, the inlet and the outlet matched with the closed mounting plate in size are formed, and heat overflow is reduced. The whole structure is compact, operation is convenient, and remarkable technical progress and practical value are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of drying equipment, and more specifically, it relates to a core drying furnace for casting. Background Technique

[0002] A core is a key material in the casting process. It is mainly made by mixing sand materials (such as quartz sand, silica sand, etc.) and binders (such as clay, resin, oil, etc.) in a certain proportion, and then through specific process treatment to form a hollow sand block with a certain shape and strength. The main function of the core is to form cavities, channels, and complex external shapes inside the casting during the casting process. These parts usually need to be retained after casting to meet the functional and design requirements of the casting.

[0003] At present, in order to improve the drying effect of the core, the natural drying method is generally not used to dry the core because the natural drying efficiency is low and it is greatly affected by external environmental factors. Therefore, when drying the core, most of them use a drying furnace to dry the core. However, when the core is put into the drying furnace, the staff needs to arrange the cores in the drying furnace to prevent the cores from stacking on each other and affecting the drying effect. However, such a placement method is not convenient enough and the operation is relatively complex.

[0004] Therefore, in order to solve the above technical problems, this application proposes a core drying furnace for casting. Content of the Utility Model

[0005] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a core drying furnace for casting.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A core drying furnace for casting, including a drying furnace body for drying the core, and the core drying furnace for casting further includes;

[0007] A drying support arranged on the drying furnace body. There are multiple groups of drying supports, and the drying supports are used to place the cores to be dried;

[0008] A height adjustment mechanism, which is arranged on the drying furnace body through a driving member. The height adjustment mechanism is connected to each drying support. When the height adjustment mechanism is driven by the driving member to disengage / enter the drying furnace body, the height adjustment mechanism is used to increase / decrease the distance between each drying support.

[0009] Preferably, the height adjustment mechanism includes a closed mounting plate slidably arranged on the drying furnace body and a vertical plate fixedly arranged on the closed mounting plate. A plurality of sliding buttons corresponding to the drying brackets one by one and having the same number as the drying brackets are slidably arranged on the vertical plate through a provided limiting sliding groove. Each sliding button is connected to the corresponding drying bracket through an equidistant adjustment member.

[0010] Preferably, the equidistant adjustment member includes a limiting plate arranged between the vertical plate and the drying bracket and a plurality of limiting grooves corresponding to the sliding buttons one by one and having the same number as the sliding buttons opened on the limiting plate. The limiting plate is movably arranged on the inner wall surface of the drying furnace body through a limiting telescopic rod. The plurality of limiting grooves are integrally distributed in a fan shape and all slidably arrange variable pitch movable blocks. The plurality of variable pitch movable blocks are used to connect the corresponding sliding buttons to the drying brackets.

[0011] Preferably, the driving member is an electric telescopic rod or a hydraulic cylinder.

[0012] Preferably, an inlet and outlet for the sand core are opened on the drying furnace body, and the width dimension and height dimension of the inlet and outlet are the same as the width dimension and height dimension of the closed mounting plate.

[0013] Preferably, a transparent glass is installed on the drying furnace body to facilitate observing the drying state of the sand core.

[0014] Compared with the prior art, the present utility model has the following beneficial effects:

[0015] The sand core drying furnace for casting of the present utility model has remarkable beneficial effects. First, through the cooperation of the height adjustment mechanism and the driving member, the flexible adjustment of the distance between the drying brackets is realized, which greatly facilitates the placement and removal of the sand core and reduces the complexity of manual stacking. Second, the precise adjustment of the distance between the drying brackets ensures that the sand core receives uniform and sufficient heat during the drying process, improves the drying efficiency and drying effect, and effectively avoids the problem of insufficient drying of the overlapping part of the sand core. In addition, the transparent glass installed on the drying furnace body facilitates the staff to observe the drying state of the sand core at any time and adjust the drying parameters in a timely manner. At the same time, the inlet and outlet opened on the drying furnace body and matching the size of the closed mounting plate not only reduce the heat overflow but also improve the energy utilization rate. To sum up, the drying furnace of the present utility model has the advantages of compact structure, convenient operation, good drying effect, high energy utilization rate, etc., and has remarkable technological progress and practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present utility model and form a part of this application. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0017] Figure 1It is a schematic structural view of the overall section of the present utility model;

[0018] Figure 2 It is a schematic structural view of the whole of the present utility model;

[0019] Figure 3 It is a schematic structural view of a part in the present utility model;

[0020] Figure 4 It is a schematic structural view of the limit plate and the limit telescopic rod in the present utility model.

[0021] 1. Drying furnace body; 2. Sealed mounting plate; 3. Transparent glass; 4. Vertical plate; 5. Limit plate; 6. Driving member; 7. Drying support; 8. Limit chute; 9. Slide button; 10. Limit groove; 11. Variable pitch movable block; 12. Limit telescopic rod. Specific embodiments

[0022] As Figures 1-4 shown, the present utility model provides a core drying furnace for casting, which includes a drying furnace body 1 for drying the core. The drying furnace body 1 is used to generate drying hot gas, and the core placed in the drying furnace body 1 is dried by the hot gas. The drying furnace body 1 is also provided with a ventilation mechanism, which is prior art and will not be elaborated here. There is also a drying support 7 provided on the drying furnace body 1 of the core drying furnace for casting. A plurality of drying supports 7 are provided, and the drying supports 7 are used to place the cores to be dried. When the cores need to be dried, the cores are placed on different drying supports 7 and stacked at different heights to prevent the cores from being stacked on each other, resulting in the problem that the overlapping part cannot be effectively dried;

[0023] In order to facilitate placing the cores on each drying support 7, a height adjustment mechanism is also provided on the core drying furnace for casting, which is arranged on the drying furnace body 1 through a driving member 6, and the height adjustment mechanism is connected to each drying support 7. When the height adjustment mechanism is disengaged from / entered into the drying furnace body 1 by the driving member 6, the height adjustment mechanism is used to increase / decrease the distance between each drying support 7. In such a case, when the height adjustment mechanism drives each drying support 7 to move outward from the drying furnace body 1 by the driving member 6, the height adjustment mechanism will increase the distance between each drying support 7, so as to facilitate the staff to remove the cores on the drying support 7. On the contrary, when the drying support 7 is placed into the drying furnace body 1 by the driving member 6, the height adjustment mechanism reduces the distance between each drying support 7, and does not cause each drying support 7 to be stacked on each other, but leaves a gap to prevent the occlusion caused by mutual stacking from affecting the drying effect;

[0024] In an embodiment of the present utility model, the height adjustment mechanism includes a closed mounting plate 2 slidably disposed on the drying furnace body 1 and a vertical plate 4 fixedly disposed on the closed mounting plate 2. A plurality of sliding buttons 9 that are the same in number as and correspond one-to-one to the drying brackets 7 are slidably disposed on the vertical plate 4 through the provided limit sliding grooves 8. Each of the sliding buttons 9 is connected to the corresponding drying bracket 7 through an equidistant adjustment member. The equidistant adjustment member includes a limit plate 5 disposed between the vertical plate 4 and the drying bracket 7 and a plurality of limit grooves 10 that are the same in number as and correspond one-to-one to the sliding buttons 9 and are provided on the limit plate 5. The limit plate 5 is movably disposed on the inner wall surface of the drying furnace body 1 through a limit telescopic rod 12. When the drying bracket 7 enters the drying furnace body 1 through the driving member 6, the closed mounting plate 2 drives the vertical plate 4 to enter the drying furnace body 1, so that the limit plate 5, the drying bracket 7, and the sand core on the drying bracket 7 enter the drying furnace body 1 together. At this time, the limit telescopic rod 12 gradually shortens until the limit telescopic rod 12 moves to the maximum stroke. At this time, the limit plate 5 cannot move further, so that a relative displacement is generated between the limit plate 5 and the vertical plate 4. Since the plurality of limit grooves 10 are integrally distributed in a fan shape and variable-distance movable blocks 11 are slidably disposed thereon, the plurality of variable-distance movable blocks 11 are used to connect the corresponding sliding buttons 9 to the drying brackets 7. In this way, after the displacement occurs between the limit plate 5 and the vertical plate 4, the limit sliding grooves 8 on the vertical plate 4 pull the sliding buttons 9 to drive the variable-distance movable blocks 11 to continue to move. In this way, the variable-distance movable blocks 11 will move in the limit grooves 10 that are integrally fan-shaped, so that the variable-distance movable blocks 11 approach each other. At this time, each sliding button 9 flows in the limit sliding groove 8 along the vertical direction, so that each drying bracket 7 approaches each other and the distance therebetween is reduced. On the contrary, when the drying bracket 7 is separated from the drying furnace body 1 through the driving member 6, in the initial movement, the closed mounting plate 2 drives the vertical plate 4, the limit plate 5, and the drying bracket 7 to move towards the outside of the drying furnace body 1 together. At this time, the limit telescopic rod 12 is stretched until the limit telescopic rod 12 is stretched to the limit. At this time, the limit plate 5 cannot move, while the vertical plate 4 continues to move outwards. As a result, during the process of the drying bracket 7 moving outwards, it gradually unfolds and the distance therebetween expands until the drying bracket 7 completely moves to the outside of the drying furnace body 1 and the distance between each drying bracket 7 reaches the maximum. At this time, the sand cores on each drying bracket 7 can be removed, and the sand cores for the next batch of drying can be placed. The maximum distance between the drying brackets is convenient for the staff to place the sand cores, and it is also difficult for the sand cores to rub against the upper drying bracket 7 when placing the sand cores. When the sand cores are put into the drying furnace body 1, the distance between the drying brackets decreases, so that the volume of the drying furnace body 1 does not need to be too large, does not occupy space, and the smaller space can facilitate the drying furnace body 1 to gather heat, save energy, improve the drying effect on the sand cores. Moreover, this kind of drying furnace for sand cores can facilitate the staff to place the sand cores. There is no need for manual stacking, but only need to place the sand cores on each layer of drying brackets 7, and the operation is convenient;

[0025] To prevent heat from escaping during drying and causing energy loss, the drying furnace body 1 is provided with an inlet and outlet for the sand core, and the width and height dimensions of the inlet and outlet are the same as the width and height dimensions of the closed mounting plate 2. To facilitate observing the drying state of the sand core, a transparent glass 3 is installed on the drying furnace body 1;

[0026] It should be noted that the driving member 6 is an electric telescopic rod or a hydraulic cylinder, which is prior art and will not be elaborated here.

[0027] The above is only a preferred embodiment of the present invention and does not impose any form of limitation on the present invention; any ordinary technician in the industry can smoothly implement the present invention as shown in the accompanying drawings of the specification and as described above; however, any minor changes, modifications, and equivalent variations made by those skilled in the art within the scope of the technical solution of the present invention by using the technical content disclosed above are equivalent embodiments of the present invention; at the same time, any equivalent changes, modifications, and variations made to the above embodiments based on the essential technology of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A core drying furnace for casting, comprising a drying furnace body (1) for drying the core, characterized in that: The core drying furnace for casting further includes; Drying brackets (7) provided on the drying furnace body (1). There are multiple groups of drying brackets (7), and the drying brackets (7) are used to place the cores that need to be dried; A height adjustment mechanism, which is provided on the drying furnace body (1) through a driving member. The height adjustment mechanism is connected to each drying bracket (7). When the height adjustment mechanism is disengaged from / entered into the drying furnace body (1) by the driving member, the height adjustment mechanism is used to expand / narrow the distance between each drying bracket (7).

2. The core drying furnace for casting according to claim 1, wherein: The height adjustment mechanism includes a closed mounting plate (2) slidably provided on the drying furnace body (1) and a vertical plate (4) fixedly provided on the closed mounting plate (2). The closed mounting plate (2) is provided on the driving member. A plurality of sliding buttons (9) that are the same in number as and correspond one-to-one with the drying brackets (7) are slidably provided on the vertical plate (4) through a provided limit chute (8). Each of the sliding buttons (9) is connected to the corresponding drying bracket (7) through an equidistant adjustment member.

3. The core drying furnace for casting according to claim 2, characterized in that: The equidistant adjustment member includes a limit plate (5) provided between the vertical plate (4) and the drying bracket (7) and a plurality of limit grooves (10) that are the same in number as and correspond one-to-one with the sliding buttons (9) and are provided on the limit plate (5). The limit plate (5) is movably provided on the inner wall surface of the drying furnace body (1) through a limit telescopic rod (12). The plurality of limit grooves (10) are integrally distributed in a fan shape and all slidably provided with variable-distance movable blocks (11). The plurality of variable-distance movable blocks (11) are used to connect the corresponding sliding buttons (9) to the drying brackets (7).

4. The core drying furnace for casting according to claim 3, wherein: The driving member is an electric telescopic rod or a hydraulic cylinder.

5. The core drying furnace for casting according to claim 4, characterized in that: An inlet and outlet for the core are provided on the drying furnace body (1), and the width dimension and height dimension of the inlet and outlet are the same as the width dimension and height dimension of the closed mounting plate (2).

6. The core drying furnace for casting according to claim 5, characterized in that: A transparent glass (3) is installed on the drying furnace body (1) to facilitate observing the core drying state.

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