Casting drying equipment

Abstract

The utility model relates to casting drying equipment which comprises a machine box and a rotating disc arranged in the machine box, fixing plates are evenly distributed on the rotating disc in the circumferential direction of the rotating disc, detachable workpiece positioning and containing plates are connected to the fixing plates in a rotating mode, and a workpiece taking and placing table, a hot drying cavity and a cold drying cavity are sequentially arranged on the machine box in the rotating direction of the rotating disc. A first cabin door, a second cabin door and a third cabin door which can ascend and descend are correspondingly arranged between the workpiece taking and placing table and the hot drying cavity, between the workpiece taking and placing table and the cold drying cavity and between the hot drying cavity and the cold drying cavity, and the first cabin door and the second cabin door are obliquely arranged and matched to form a splayed shape. The casting drying equipment is used for drying workpieces and is beneficial to widening the application range.

Description

Technical Field

[0001] This utility model relates to a casting drying device. Background Technology

[0002] During the production process, workpieces need to be rinsed after machining to remove oil stains adhering to them. After rinsing, to prevent residual moisture on the workpiece surface (such as castings) from causing rust and to accelerate the evaporation of residual moisture, a drying device is typically used to dry the castings. Traditional drying equipment typically has horizontally positioned doors (parallel to the front of the equipment), narrow doors, and fixed, non-removable workpiece racks, making the drying equipment limited to a specific purpose and unsuitable for drying various types of workpieces. Utility Model Content

[0003] The purpose of this utility model is to provide a casting drying device that is convenient for drying workpieces and helps to increase its applicability.

[0004] The technical solution of this utility model is as follows: a casting drying equipment, including a machine box and a turntable disposed in the machine box. The turntable is evenly distributed with fixed plates along its circumference. A detachable workpiece positioning and holding plate is rotatably connected to the fixed plates. The machine box is arranged sequentially along the rotation direction of the turntable with a workpiece pick-and-place platform, a hot drying chamber, and a cold drying chamber. A liftable first door, a second door, and a third door are correspondingly arranged between the workpiece pick-and-place platform and the hot drying chamber, between the workpiece pick-and-place platform and the cold drying chamber, and between the hot drying chamber and the cold drying chamber. The first door and the second door are both obliquely arranged and cooperate to form a figure-eight shape.

[0005] Furthermore, a vertical bushing is rotatably connected to the cantilever end of the fixed plate, and a polygonal inner ring is provided inside the vertical bushing. An outer polygonal connecting shaft that is inserted into the vertical bushing is fixed to the bottom surface of the workpiece positioning and holding plate.

[0006] Furthermore, the workpiece loading and unloading platform, the hot drying chamber, and the cold drying chamber are all equipped with a drive mechanism for driving the workpiece positioning and holding plate to rotate.

[0007] Furthermore, the driving mechanism includes a gear disk fixed on the vertical shaft sleeve, and the workpiece pick-and-place table, the hot drying chamber, and the cold drying chamber are all equipped with driving gears that mesh with the gear disk.

[0008] Furthermore, the workpiece positioning plate is provided with plastic positioning posts, and the workpiece positioning plate has sealed round holes.

[0009] Furthermore, guide grooves are vertically provided on both sides of the first, second, and third hatches on the chassis, and cylinders for driving the first, second, and third hatches to rise and fall are fixed on the top of the chassis.

[0010] Furthermore, the top of the first, second, and third hatches are all vertically fixed with guide rods that slide with the chassis, and the first and second hatches are equipped with transparent windows.

[0011] Furthermore, a hot air dryer is installed on the top of the chassis, and a hot air hood is provided inside the hot drying chamber located on the upper side of the workpiece positioning plate. The hot air hood is connected to the hot air dryer via a pipe.

[0012] Furthermore, a cold air fan is installed on the top of the chassis, and a cold air hood is provided inside the cold drying chamber, located above the workpiece positioning and holding plate. The cold air hood is connected to the cold air fan via a pipe.

[0013] Furthermore, a workpiece placement platform is provided on the front side of the workpiece loading and unloading platform on the chassis, and a sensor for detecting the workpiece positioning plate is provided on the lower side of the workpiece placement platform.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] 1. The door of the casting drying equipment is set at an angle (towards the front side of the equipment), which increases the width of the door, thereby increasing the applicability of the casting drying equipment, reducing the number of drying equipment in the plant area, and lowering costs.

[0016] 2. This drying equipment features a replaceable workpiece positioning plate, making it convenient for drying different workpieces (castings).

[0017] 3. The workpiece positioning plate of this drying equipment is rotatable, which helps to ensure the drying effect of each area during the workpiece drying process. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 For the present utility model Figure 1 AA section view;

[0020] Figure 3 This is a schematic diagram of the drive mechanism of this utility model;

[0021] Figure 4 This is a schematic diagram showing the cooperation between the hot air hood or cold air hood of this utility model and the workpiece positioning and holding plate.

[0022] Figure 5This is a top view schematic diagram of a workpiece positioning and holding plate according to the present invention;

[0023] Figure 6 This is a schematic diagram of the mating of the curtain and the casing of this utility model;

[0024] In the diagram: 10-Chassis; 11-Workpiece loading and unloading platform; 12-Hot drying chamber; 121-Hot air dryer; 122-Hot air hood; 13-Cold drying chamber; 131-Cold air blower; 132-Cold air hood; 14-Guide groove; 15-Cylinder; 16-Guide rod; 17-Workpiece placement platform; 18-Sensor; 19-Curtain; 20-Turntable; 21-Fixing plate; 30-Workpiece positioning and holding plate; 31-Outer polygonal connecting shaft; 32-Through hole; 33-Plastic positioning post; 40-First compartment door; 50-Second compartment door; 60-Third compartment door; 70-Vertical bushing; 71-Polygonal inner ring; 72-Gear disk; 73-Protrusion; 81-Motor; 82-Drive gear. Detailed Implementation

[0025] To make the above-mentioned features and advantages of this utility model more easily understood, specific embodiments are described below in conjunction with the accompanying drawings, but this utility model is not limited thereto.

[0026] refer to Figures 1 to 6

[0027] A casting drying device includes a housing 10 and a turntable 20 driven by a drive device (e.g., a motor) disposed within the housing. Fixed plates 21 are evenly distributed along the circumference of the turntable, and detachable workpiece positioning plates 30 are rotatably connected to the fixed plates for replacement as needed. A workpiece loading / unloading platform 11, a hot drying chamber 12, and a cold drying chamber 13 are sequentially arranged on the housing along the rotation direction of the turntable, allowing workpieces to move along the loading / unloading platform 11, the hot drying chamber 12, the cold drying chamber 13, and back to the loading / unloading platform. A liftable first door 40, a second door 50, and a third door 60 are correspondingly provided between the workpiece loading / unloading platform and the hot drying chamber, between the workpiece loading / unloading platform and the cold drying chamber, and between the hot drying chamber and the cold drying chamber. The first and second doors are both angled and work together to form a figure-eight shape, which makes the workpiece loading and unloading platform fan-shaped. This not only helps with the installation and rotation of the workpiece, but also increases the width of the doors, expanding the range of workpieces of applicable size, thereby improving the applicability of the entire casting drying equipment.

[0028] In this embodiment, to achieve a detachable connection between the workpiece positioning plate and the fixed plate, a vertical bushing 70 is rotatably connected to the cantilever end of the fixed plate. A polygonal inner ring 71 is provided inside the vertical bushing, and an outer polygonal connecting shaft 34, which inserts into the vertical bushing, is fixed to the bottom surface of the workpiece positioning plate. Preferably, to allow the workpiece positioning plate to disengage from the vertical bushing during rotation, a locking bolt for locking the outer polygonal connecting shaft can be radially arranged on the vertical bushing.

[0029] In this embodiment, one type of workpiece positioning plate is provided with plastic positioning posts 33, and the workpiece positioning plate has sealed circular holes 32 to allow for better circulation of hot or cold air. The plastic positioning posts are made of POM (polyoxymethylene) material.

[0030] In this embodiment, to allow the workpiece to rotate and dry better within the cold and hot drying chambers, and to facilitate the positioning and placement of the workpiece on the workpiece pick-and-place platform, the workpiece pick-and-place platform, the hot drying chamber, and the cold drying chamber are all equipped with a drive mechanism for rotating the workpiece positioning and placement plate. Specifically, the drive mechanism includes a gear disk 72 concentrically fixed on a vertical shaft sleeve. Each of the workpiece pick-and-place platform, the hot drying chamber, and the cold drying chamber is equipped with a drive gear 82 that meshes with the gear disk. The drive gears are driven to rotate by a motor 81. The three gear disks have the same gears and module, the three drive gears have the same module and gears, and the gear disks and drive gears have the same module.

[0031] In another embodiment, the lower end of the drive gear shaft can be connected to the drive gear via a synchronization mechanism, such as a synchronous belt mechanism located in the lower cavity of the chassis and driven by a servo motor, so as to achieve synchronous rotation of the drive gear.

[0032] In this embodiment, guide grooves 14 are vertically arranged on both sides of the first, second, and third hatches on the chassis. Cylinders 15 for driving the first, second, and third hatches to rise and fall are fixed to the top of the chassis, respectively. Guide rods 16 that slide with the chassis are vertically fixed to the top of each of the first, second, and third hatches. This enables the raising and lowering of the first, second, and third hatches.

[0033] In this embodiment, the first and second doors are provided with transparent windows 41 to observe the drying process in the hot drying chamber and the cold drying chamber.

[0034] In this embodiment, a hot air dryer 121 is installed on the top of the casing, and a hot air hood 122 is provided inside the hot drying chamber, located above the workpiece positioning plate. The hot air hood is connected to the hot air dryer via a pipe. Hot air is introduced into the hot drying chamber to dry the workpiece. The casing is provided with an exhaust vent communicating with the hot drying chamber to allow internal moisture and heat to escape. The exhaust vent can be connected to the air inlet channel of the hot air dryer after passing through a dehumidifier, which helps to save energy.

[0035] In this embodiment, a cooler 131 is installed on the top of the chassis, and a cooler hood 132 is provided inside the cold drying chamber, located above the workpiece positioning plate. The cooler hood is connected to the cooler via a pipe. The chassis is provided with an exhaust vent communicating with the cold drying chamber to prevent excessive pressure inside the chamber.

[0036] In this embodiment, the hot air dryer and the cold air blower mentioned above are existing technologies. The hot air dryer can be an electric hot air blower, and the cold air blower can be a normal cold air blower.

[0037] In this embodiment, the chassis is provided with several curtains 19 along its width at the third door. The curtains are strips of cloth.

[0038] In this embodiment, a workpiece placement platform 17 is provided on the front side of the workpiece pick-and-place stage on the chassis. A sensor 18 is provided below the workpiece placement platform. A protrusion 73 cooperating with the sensor is provided on the lower side of the gear disk to detect the position of the workpiece positioning tray, facilitating the subsequent placement of workpieces on the workpiece positioning tray. When the workpiece positioning tray rotates to the workpiece pick-and-place stage position, if the sensor does not detect the protrusion, the drive mechanism will drive the gear disk to rotate until the sensor detects the protrusion, so as to pick up and place the workpiece.

[0039] In this embodiment, the lower part between the hot drying chamber and the cold drying chamber, and the first door between the doors, are provided with clearance notches for the fixed plate to avoid rotation.

[0040] In operation, workpieces are placed and removed from the workpiece loading and unloading platform. For every 120° rotation of the turntable, the workpiece positioning plate also rotates 120°, allowing the workpiece to change positions. For example, a workpiece moves from the workpiece loading and unloading platform to the hot drying chamber, then from the hot drying chamber to the cold drying chamber, and finally from the cold drying chamber to the workpiece loading and unloading platform. During drying, the first, second, and third doors are all closed, and the hot air dryer and cold air blower operate simultaneously. After a certain drying time, all three doors are opened, and the turntable rotates 120° to facilitate workpiece repositioning and to allow workers to easily remove workpieces from the workpiece loading and unloading platform and place them on the workpieces awaiting drying.

[0041] If the terms "first" and "second" are used in the above description to define the components, those skilled in the art should know that the use of "first" and "second" is only for the convenience of distinguishing the components in the description. Unless otherwise stated, the above terms have no special meaning.

[0042] If this utility model discloses or relates to mutually fixedly connected parts or structural components, then unless otherwise stated, a fixed connection can be understood as: a detachable fixed connection (e.g., using bolts or screws) or a non-detachable fixed connection (e.g., riveting or welding). Of course, mutually fixed connections can also be replaced by an integral structure (e.g., manufactured using a casting process) (except where it is obviously impossible to use an integral forming process).

[0043] In addition, unless otherwise stated, the terms used to indicate positional relationships or shapes in any of the technical solutions disclosed in this utility model above include states or shapes that are similar to, close to, or approximate with them.

[0044] Any component provided by this utility model can be assembled from multiple individual components, or it can be a single component manufactured by a one-piece molding process.

[0045] The above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall be covered by the present utility model.

Claims

1. A casting drying apparatus comprising a cabinet and a turntable provided in the cabinet, characterized by, The rotary table is uniformly distributed with fixed plates along the circumferential direction, the fixed plates are rotationally connected with detachable workpiece positioning and containing plates, the cabinet is sequentially provided with a workpiece taking and placing table, a hot drying cavity and a cold drying cavity along the rotation direction of the rotary table, the workpiece taking and placing table and the hot drying cavity, the workpiece taking and placing table and the cold drying cavity, and the hot drying cavity and the cold drying cavity are correspondingly provided with liftable first, second and third hatch doors, the first and second hatch doors are obliquely arranged and cooperatively form an eight-shaped type.

2. The casting drying apparatus according to claim 1, characterized by The cantilever end of the fixed plate is rotationally connected with a vertical shaft sleeve, the vertical shaft sleeve is provided with a polygonal inner ring, and the bottom surface of the workpiece positioning and containing plate is fixed with an outer polygonal connecting shaft which is inserted into the vertical shaft sleeve.

3. The casting drying apparatus according to claim 2, characterized by The workpiece taking and placing table, the hot drying cavity and the cold drying cavity are all provided with a driving mechanism for driving the workpiece positioning and containing plate to rotate.

4. The casting drying apparatus according to claim 3, characterized by The driving mechanism comprises a gear plate fixed on the vertical shaft sleeve, and the workpiece taking and placing table, the hot drying cavity and the cold drying cavity are all provided with driving gears which are engaged with the gear plate.

5. The casting drying apparatus according to claim 1, 2, 3 or 4, characterized by, The workpiece positioning and containing plate is provided with plastic positioning columns, and the workpiece positioning and containing plate is tightly provided with circular holes.

6. The casting drying apparatus according to claim 1, 2, 3 or 4, characterized by, The cabinet is vertically provided with guide grooves on both sides of the first, second and third hatch doors, and the top of the cabinet is respectively fixed with air cylinders for driving the first, second and third hatch doors to lift.

7. The casting drying apparatus according to claim 6, characterized by The top of the first, second and third hatch doors is vertically fixed with guide rods which are slidingly matched with the cabinet, and the first and second hatch doors are provided with transparent windows.

8. The casting drying apparatus according to claim 1, 2, 3, 4 or 7, characterized by, The top of the cabinet is provided with a hot air dryer, the hot drying cavity is provided with a hot air cover which is located on the upper side of the workpiece positioning and containing plate, and the hot air cover is connected with the hot air dryer through a pipeline.

9. The casting drying apparatus according to claim 1, 2, 3, 4 or 7, characterized by, The top of the cabinet is provided with a cold air machine, the cold drying cavity is provided with a cold air cover which is located on the upper side of the workpiece positioning and containing plate, and the cold air cover is connected with the cold air machine through a pipeline.

10. The casting drying apparatus according to claim 1, 2, 3, 4 or 7, characterized by, The cabinet is provided with a workpiece placing table surface on the front side of the workpiece taking and placing table, and a sensor for detecting the workpiece positioning and containing plate is arranged on the lower side of the workpiece placing table surface.

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