Workpiece placing table for top ventilation cleaning device

Abstract

The utility model relates to a workpiece placing table for a top ventilation cleaning device, which comprises an objective table, the objective table comprises a seat plate and a table top arranged above the seat plate, and a plurality of support columns are arranged between the table top and the seat plate; a plurality of turning plates are hinged to the edge of the table top, and a pushing part used for pushing the turning plates to turn is installed on the seat plate. According to the technical scheme, the turning plates can be pushed upwards through the pushing part, so that the turning plates surround the table top in the state of inclining upwards away from one side of the table top and serve as a guide structure for the air injection mechanism to inject air flow downwards, and the air flow is promoted to be reflected towards the conical flow channel.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning equipment, in particular to a workpiece placement table for a top ventilation cleaning device. Background Art

[0002] In the mechanical processing industry, the air flow cleaning method is usually used to clean small particles of residue on the surface of parts. It can be roughly divided into two methods: negative pressure cleaning and positive pressure cleaning. The negative pressure cleaning method uses negative pressure to absorb the residue on the surface of the parts. This method can effectively prevent small particles of residue from spreading to the surroundings during the cleaning process, but it is not effective for parts with irregular surfaces. Positive pressure cleaning can improve the cleaning effect of parts with irregular surfaces, but small particles of residue are easily spread around under the blowing of positive pressure airflow, causing pollution around the cleaning station. For this reason, the inventor proposed a device for cleaning by air flow, which uses a combination of positive and negative pressure during the cleaning process to improve the cleaning effect and reduce the amount of small particles of residue spreading to the surroundings. In this scheme, negative pressure suction is used on the same side as the positive pressure airflow. How to effectively reflect the positive pressure airflow to cooperate with negative pressure suction needs to be solved urgently. Utility Model Content

[0003] In view of this, the purpose of the present invention is to provide a workpiece placement table for a top ventilation cleaning device to solve the problem of how to effectively reflect the positive pressure airflow in the existing technology using negative pressure suction on the same side as the positive pressure airflow.

[0004] The utility model is achieved through the following technical solutions:

[0005] A workpiece placement table for a top ventilation cleaning device includes a loading platform, the loading platform including a base plate and a table top arranged above the base plate, and a plurality of support columns are arranged between the table top and the base plate;

[0006] A plurality of flaps are hingedly connected to the edge of the table top, and a pushing portion for pushing the plurality of flaps to flip is installed on the seat plate.

[0007] It is further defined that the pushing portion includes a reciprocating pushing mechanism installed on the bottom plate and an annular frame connected to the execution end of the reciprocating pushing mechanism, and the top end of the annular frame is against the bottom surfaces of the plurality of flaps.

[0008] It is further defined that a table plate is laid on the table top, a pressure sensor is provided between the table plate and the table top, the pressure sensor is electrically connected to a controller, and the controller is electrically connected to the reciprocating pushing mechanism.

[0009] It is further defined that the annular frame includes a support ring and a support plate, the upper end of the support ring is against the bottom surfaces of several flaps, and the lower end is connected to the support plate, and the support plate is provided with mounting holes for multiple support columns to pass through, and the mounting holes are connected with sliding sleeves that slide and fit on the support columns.

[0010] It is further defined that the support ring and the flap are matched by magnetic adsorption.

[0011] It is further defined that a convex ridge extending outward from the center of the table top is provided on the side of the flap facing the support ring, and a sliding groove cooperating with the convex ridge is provided on the upper end of the support ring.

[0012] It is further defined that both ends of the convex rib are provided with limit blocks protruding toward both sides.

[0013] The beneficial effects of the present invention are:

[0014] This workpiece placement table for a top ventilation and cleaning device can push a plurality of flaps upward through a pushing portion, so that the plurality of flaps are tilted upward away from the table surface and surround the table surface, serving as a guide structure for the air injection mechanism to spray air downward, thereby causing the air flow to be reflected toward the conical flow channel.

[0015] Other advantages, objectives, and features of the present invention will be described in detail in the following description and, to some extent, will be apparent to those skilled in the art upon examination and study of the following or may be learned from practice of the present invention. The objectives and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 It is a top view of the utility model;

[0018] Figure 3 for Figure 2 The cross-sectional structure of AA is shown in the figure;

[0019] Figure 4 Schematic diagram of the coordination structure between the flap and the support ring;

[0020] Figure 5 A perspective view of a top-ventilated cleaning device;

[0021] Figure 6 A front view of a top-ventilated cleaning device;

[0022] Figure 7 for Figure 6 Schematic diagram of the cross-sectional structure of AA;

[0023] Figure 8 Schematic diagram of the coordination structure between the ventilation pipe and the rotating table Figure 1 ;

[0024] Figure 9 Schematic diagram of the coordination structure between the ventilation pipe and the rotating table Figure 2 ;

[0025] Figure 10 Schematic diagram of the internal structure of the ventilation pipe and the rotating table;

[0026] Figure 11 for Figure 10 Enlarged view of middle B;

[0027] Figure 12 It is a schematic diagram of the coordination structure of multiple blocking blocks;

[0028] Figure 13 Schematic diagram of the coordination structure of the air-supplementing hole and the air-guiding hole;

[0029] In the figure: 1. air injection mechanism; 2. vent pipe; 3. rotating table; 4. injection hole; 5. air supply hole; 6. sealing block; 7. elastic support member; 8. air guide hole; 9. support plate; 10. cover plate; 11. annular baffle; 12. support block; 13. guide rod; 14. seat plate; 15. panel; 16. support column; 17. flap; 18. table; 19. pressure sensor; 20. reciprocating push mechanism; 21. annular frame; 22. support plate; 23. sliding sleeve; 24. ridge; 25. slide groove; 26. limit block. DETAILED DESCRIPTION

[0030] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0033] In the above description of the present invention, it should be noted that the terms "one side" and "the other side" and the like indicate positions or locations based on the positions or locations shown in the accompanying drawings, or the positions or locations in which the product of the present invention is typically placed when in use. These terms are intended solely to facilitate the description of the present invention and simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" and the like are used solely for distinction and should not be construed as indicating or implying relative importance.

[0034] Furthermore, the term "identical" and similar terms do not necessarily require that the components be absolutely identical; slight variations are permitted. The term "perpendicular" simply refers to the positional relationship between components being more perpendicular than "parallel," not that the structure must be perfectly vertical; rather, it can be slightly tilted.

[0035] See also Figure 1-4 , the utility model provides a technical solution: a workpiece placement table for a top ventilation cleaning device, comprising a loading platform, the loading platform comprising a base plate 14 and a table top arranged above the base plate 14, a plurality of support columns 16 are arranged between the table top and the base plate 14;

[0036] A plurality of flaps 17 are hinged to the edge of the table top, and a pushing portion for pushing the flaps 17 to flip is installed on the seat plate 14 .

[0037] The table top serves as a placement area for workpieces to be cleaned. It is connected to the base plate 14 through multiple support columns 16. Several flaps 17 are installed on the edge of the table top in a hinged manner. The several flaps 17 can be flipped around the hinge point as the axis. A pushing part is installed on the base plate 14, and the several flaps 17 can be pushed upward by the pushing part, so that the several flaps 17 are in an upward tilted state away from the side of the table top and surround the table top, serving as a guide structure for the air injection mechanism 1 to spray air downward, causing the air flow to be reflected toward the conical flow channel.

[0038] In this embodiment, the pushing portion includes a reciprocating pushing mechanism 20 installed on the bottom plate and an annular frame 21 connected to the execution end of the reciprocating pushing mechanism 20 , and the top end of the annular frame 21 abuts against the bottom surfaces of the plurality of flaps 17 .

[0039] The reciprocating pushing mechanism 20 can be a structure such as a cylinder or an electric push rod, and its execution end is connected to the annular frame 21. By pushing the annular frame 21, the multiple flaps 17 can be pushed to flip synchronously.

[0040] In this embodiment, a table plate 18 is laid on the table top, and a pressure sensor 19 is provided between the table plate 18 and the table top. The pressure sensor 19 is electrically connected to a controller, and the controller is electrically connected to the reciprocating pushing mechanism 20.

[0041] The table plate 18 is laid on the table surface, and a pressure sensor 19 is set between the table surface. When the air injection mechanism 1 is started, the air flow will generate pressure on the table plate 18. The pressure sensor 19 is used to detect the pressure value and send the numerical information to the controller. The controller can control the pushing distance of the reciprocating pushing mechanism 20 according to the change of the pressure value, that is, control the rising distance of the annular frame 21 to control the flipping angle of the flap 17.

[0042] In this embodiment, the annular frame 21 includes a support ring and a support plate 22. The upper end of the support ring is against the bottom surface of several flaps 17, and the lower end is connected to the support plate 22. The support plate 22 is provided with mounting holes for multiple support columns 16 to pass through, and the mounting holes are connected to sliding sleeves 23 that slide and fit on the support columns 16.

[0043] The support plate 22 serves as a connection portion with the reciprocating pushing mechanism 20 . The support plate 22 uses the sliding sleeve 23 as a sliding matching structure with the plurality of support columns 16 , thereby improving the stability of its up and down sliding.

[0044] In this embodiment, the support ring and the flap 17 are matched by magnetic adsorption.

[0045] The support ring or the flap 17 is made of magnetic material, and the two are matched through magnetic adsorption and can maintain a fit state during sliding.

[0046] In this embodiment, a ridge 24 extending outward from the center of the table surface is provided on the side of the flap 17 facing the support ring, and a sliding groove 25 cooperating with the ridge 24 is provided on the upper end of the support ring.

[0047] The flap 17 and the support ring cooperate with each other through the ridges 24 and the slide grooves 25, which can prevent the flap 17 from deflecting during the process of being pushed and turned, thereby improving the structural stability.

[0048] In this embodiment, both ends of the ridge 24 are provided with limit blocks 26 protruding toward both sides.

[0049] The limiting block 26 serves as a limiting structure and can be used as a limiting structure to limit the maximum flipping angle of the flap 17 .

[0050] like Figure 5-13As shown, the utility model is applied to a top-ventilated cleaning device, including a loading platform for placing workpieces to be cleaned, an air injection mechanism 1 is provided above the loading platform for blowing toward the bottom surface of the loading platform, the first air injection mechanism 1 includes a vent pipe 2, the lower end of the vent pipe 2 is an air inlet end connected to the air supply equipment, the upper end of the vent pipe 2 is an air outlet end, the upper end of the vent pipe 2 is rotatably connected to a rotating table 3, and the top edge of the rotating table 3 is provided with at least two injection holes 4 facing the loading platform and connected to the vent pipe 2, the two injection holes 4 are both located on a circle with the center of the rotating table 3 as the center, and are evenly distributed along the circumference of the circle, and the injection directions of the two nozzles are inclined toward the same side.

[0051] The rotating table 3 and the vent pipe 2 rotate in coordination and are connected. The air flow introduced into the vent pipe 2 by the air supply device will enter the rotating table 3 and be ejected outwards from the injection holes 4 provided on the rotating table 3, that is, the air flow will be ejected toward the workpiece to be cleaned to remove small particles and residues on the surface of the workpiece to be cleaned. Moreover, since the injection holes 4 are in an inclined state, after the air is ejected, the rotating table 3 will rotate horizontally under the action of the reaction force of the air flow, and the injection holes 4 will also rotate synchronously with the rotating table 3, so that the air flow will be ejected toward the workpiece to be cleaned in a spiral shape, thereby improving the cleaning effect of the surface of the workpiece to be cleaned. After the air flow is blown, it will be blocked by the stage and reflected upwards.

[0052] Due to the simultaneous start-up of the negative pressure equipment, a low-pressure area will be formed in the conical flow channel 25, and the air above the worktable will be sucked into the low-pressure area. When entering the conical flow channel 25, the original flow state will be retained, that is, the spiral flow state will be retained. Since the structure of the conical flow channel 25 is small at the top and large at the bottom, the flow rate of the air can be gradually accelerated after entering, which can reduce the amount of fine particles and debris adhering to the inner wall of the conical flow channel 25.

[0053] The stage is used to place or fix the workpiece to be cleaned, and the air injection mechanism 1 is used to introduce positive pressure airflow to the workpiece to be cleaned to purge the surface of the workpiece to be cleaned. A conical flow channel 25 is provided in the air guide cover 24, and the lower end of the conical flow channel 25 is larger than the upper end, and the lower end surrounds the top of the stage, and the upper end is connected to a negative pressure device for sucking the airflow above the stage. After starting the air supply device and the negative pressure device, the air flow ejected by the positive pressure device will act on the surface of the workpiece to be cleaned through the air injection mechanism 1, and purge the small particles of residue on the surface of the workpiece to be cleaned, while the negative pressure device acts on the top of the stage, that is, above the workpiece to be cleaned, through the conical flow channel 25, and is used to suck in air carrying small particles of residue;

[0054] Using positive pressure air to blow the surface of the workpiece to be cleaned can improve the cleaning effect of the workpiece on the surface to be cleaned. By using negative pressure to absorb the air carrying small particles of residue, the amount of small particles of residue that spread to the surrounding area during the cleaning process can be effectively reduced.

[0055] In this embodiment, an air supply hole 5 communicating with the ventilation pipe 2 is opened at the center of the top surface of the rotating platform 3.

[0056] The air flow ejected by the rotating table 3 will continuously push the air above the loading platform to diffuse outward, forming a low-pressure area at the center of the loading platform. The air flow in the low-pressure area is small, forming a cleaning blind spot. By opening an air supply hole 5 in the center of the rotating table 3, the air in the rotating table 3 can be passed into the low-pressure area to avoid the formation of a cleaning blind spot in the low-pressure area.

[0057] In this embodiment, a blocking assembly for blocking the end of the air-supply hole 5 is provided on the rotating table 3. The blocking assembly includes a plurality of blocking blocks 6. The plurality of blocking blocks 6 are evenly distributed around the center of the air-supply hole 5 and are assembled to cover one end of the air-supply hole 5.

[0058] The plurality of blocking blocks 6 are each provided with an elastic support member 7 acting on the rotating platform 3 on the outward side, and the elastic support member 7 maintains the covering state of the air supply hole 5;

[0059] The plurality of blocking blocks 6 are each provided with a notch on one side thereof, and an air guide hole 8 is formed by enclosing the plurality of notches. When the plurality of blocking blocks 6 are in a state of abutting against each other, the aperture of the air guide hole 8 is smaller than the aperture of the air supply hole 5 .

[0060] The rotation of the turntable 3 utilizes the reaction force of the airflow. The greater the positive pressure ventilation pressure, the faster the airflow speed ejected from the injection hole 4, the faster the rotation speed of the turntable 3, and the greater the amount of air that needs to be replenished into the center position of the loading platform; a sealing assembly is formed by multiple sealing blocks 6 to cover the end of the air supply hole 5, and after the multiple sealing blocks 6 are assembled, they are surrounded by gaps to form an air guide hole 8 with a smaller aperture than the air supply hole 5. The faster the rotation speed of the turntable 3, the greater the centrifugal force exerted on the sealing block 6, the greater the distance to overcome the elastic support 7 to move outward, the larger the aperture of the air guide hole 8, and the greater the amount of air replenished into the low-pressure area. The air supply amount can be automatically adjusted according to the rotation speed of the turntable 3, that is, it is adjusted in direct proportion to the airflow speed ejected from the injection hole 4.

[0061] In this embodiment, an annular cover plate 10 and a support plate 9 fixed to the rotating table 3 are respectively provided on both sides of the blocking assembly. An upwardly extending annular baffle 11 is provided on the edge of the support plate 9. The cover plate 10 is connected to the upper part of the annular baffle 11, and a cavity for accommodating the blocking assembly is formed between the cover plate 10 and the support plate 9.

[0062] The two ends of the elastic support member 7 respectively abut against the inner side of the annular baffle 11 and the outer side of the blocking block 6 .

[0063] The cover plate 10 and the support plate 9 constitute a clamping structure for fixing the blocking block 6, and the cover plate 10 and the support plate 9 are supported by the annular baffle 11 to keep the structures of the two stable. At the same time, the annular baffle 11 will serve as abutment for the end of the elastic support member 7 away from the blocking block 6.

[0064] In this embodiment, a support block 12 is connected to the outside of the blocking block 6. A guide rod 13 is provided on the support block 12. The guide rod 13 passes through the annular baffle 11 and slides with the annular baffle 11.

[0065] The elastic support member 7 is a spring and is sleeved outside the guide rod 13 .

[0066] The support block 12 is fixedly connected to the blocking block 6 , and is connected to a guide rod 13 . The guide rod 13 cooperates with the annular baffle 11 to provide a sliding track limit for the blocking block 6 .

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A workpiece placement platform for a top ventilation cleaning device, comprising a loading platform, characterized in that: The loading platform includes a base plate and a table top arranged above the base plate, and a plurality of support columns are arranged between the table top and the base plate; A plurality of flaps are hingedly connected to the edge of the table top, and a pushing portion for pushing the plurality of flaps to flip is installed on the seat plate.

2. A workpiece placement table for a top ventilation cleaning device according to claim 1, characterized in that: The pushing portion includes a reciprocating pushing mechanism installed on the bottom plate and an annular frame connected to the execution end of the reciprocating pushing mechanism, and the top end of the annular frame is against the bottom surfaces of the plurality of flaps.

3. The workpiece placement table for a top ventilation cleaning device according to claim 1, characterized in that: A table plate is laid on the table top, a pressure sensor is arranged between the table plate and the table top, the pressure sensor is electrically connected to a controller, and the controller is electrically connected to the reciprocating pushing mechanism.

4. A workpiece placement table for a top ventilation cleaning device according to claim 2, characterized in that: The annular frame includes a support ring and a support plate. The upper end of the support ring is against the bottom surfaces of several flaps, and the lower end is connected to the support plate. The support plate is provided with mounting holes for multiple support columns to pass through, and the mounting holes are connected to sliding sleeves that slide and fit on the support columns.

5. A workpiece placement table for a top ventilation cleaning device according to claim 4, characterized in that: The support ring and the flap are matched by magnetic adsorption.

6. A workpiece placement table for a top ventilation cleaning device according to claim 5, characterized in that: A convex ridge extending outward from the center of the table top is provided on the side of the flap facing the support ring, and a sliding groove matching the convex ridge is provided on the upper end of the support ring.

7. A workpiece placement table for a top ventilation cleaning device according to claim 6, characterized in that: Both ends of the convex ribs are provided with limiting blocks protruding toward both sides.

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