Air floatation pressing plate device

Abstract

The utility model provides an air floatation pressing plate device which comprises a pressing plate, the upper surface of the pressing plate is sunken downwards to form a groove, a plurality of air outlet holes are evenly formed in the bottom in the groove, a top cover used for blocking the groove is installed at the upper end of the pressing plate, and the top cover is fixedly connected with the pressing plate through bolts. An air inlet pipe used for being connected with a compressed air pipeline is installed in the middle of the upper surface of the top cover, a plurality of penetrating holes aligned with the air outlet holes are evenly formed in the upper surface of the top cover, column rods are inserted into the penetrating holes, positioning sleeves concentric with the penetrating holes are arranged on the upper sides of the penetrating holes, and the column rods are sleeved with the positioning sleeves. The outer surface of the positioning sleeve is in threaded connection with a positioning screw used for limiting the position of the column rod, and the lower end of the column rod is fixedly connected with a conical head used for being inserted into the air outlet holes. And the plate on the lower side of the pressing plate is uniformly stressed.

Description

Technical Field

[0001] This utility model is an air-floating pressure plate device, belonging to the field of engraving machine technology. Background Technology

[0002] When a woodworking engraving machine is carving a board, the board needs to be fixed. While the board is held in place by a pressure plate, air is introduced into the hollow pressure plate. This air flows out through the air outlet at the bottom of the pressure plate and blows onto the board surface, forming an air film between the pressure plate and the board. This prevents direct contact between the pressure plate and the board from causing damage. Currently, the pressure plate has a fixed size, and the inner diameter of the air outlet at the bottom of the pressure plate is also fixed. Because the air inlet on the pressure plate is located at one point, the airflow velocity from the air outlet further away from the air inlet is lower than that from the air outlet closer to the air inlet. This can easily lead to uneven stress on the board under the pressure plate, affecting the carving process. Therefore, it is necessary to design an air-floating pressure plate device that can adjust the airflow velocity per unit time at different air outlets as needed. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an air-floating pressure plate device to solve the problems mentioned in the background technology. This utility model realizes the adjustment of the air flow rate per unit time of different air outlets as needed, so that the plate under the pressure plate is subjected to balanced force.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an air-floating pressure plate device, comprising a pressure plate, the upper surface of which is recessed downward to form a groove, and a plurality of air outlet holes are evenly distributed at the bottom of the groove. A top cover for sealing the groove is installed on the upper end of the pressure plate, and the top cover is fixedly connected to the pressure plate by bolts. An air inlet pipe for connecting to a compressed air pipeline is installed at the center of the upper surface of the top cover. A plurality of through holes aligned with the air outlet holes are evenly distributed on the upper surface of the top cover. A column is inserted into each through hole. A positioning sleeve is provided on the upper side of the through hole and arranged concentrically with the through hole. The positioning sleeve is fitted onto the column and is fixedly connected to the top cover. A positioning screw for limiting the position of the column is threaded onto the outer surface of the positioning sleeve. A conical head for inserting into the air outlet hole is fixedly connected to the lower end of the column, and the diameter of the conical head decreases sequentially from top to bottom.

[0005] Furthermore, both sides of the intake pipe are provided with a frustum for connecting the moving end of the cylinder. The frustum is fixedly connected to the top cover, and two threaded blind holes are symmetrically opened on the upper surface of the frustum.

[0006] Furthermore, a circular hole is provided in the middle of the upper surface of the top cover, and the lower end of the air intake pipe is connected and fixed in the circular hole.

[0007] Furthermore, the upper end of the air intake pipe is fitted with a connecting ring that is fixed to the air intake pipe, and the upper surface of the connecting ring is provided with a plurality of small holes for inserting bolts at equal intervals in a ring shape.

[0008] Furthermore, the outer surface of the positioning sleeve is provided with a threaded hole, and the positioning screw is threaded into the threaded hole.

[0009] Furthermore, a plug-in frame is fixedly connected to the lower surface of the top cover, and the plug-in frame fits against the inner wall of the groove.

[0010] Furthermore, each of the two parallel sides of the pressure plate is fixedly connected to a lower connecting lug at its upper part. The upper side of the lower connecting lug is provided with an upper connecting lug that fits against the lower connecting lug. The upper connecting lug is fixedly connected to the top cover and is fixedly connected to the lower connecting lug by bolts.

[0011] Furthermore, the upper connecting ear and the top cover are integrally formed, and the lower connecting ear and the pressure plate are integrally formed.

[0012] Furthermore, a limiting disc is fixedly connected to the upper end of the column rod, and the diameter of the limiting disc is larger than the diameter of the column rod.

[0013] The beneficial effects of this utility model are:

[0014] 1. Adjust the position of the column rod downwards along the perforation so that the conical head is inserted into the air outlet. Gradually increase the depth of the conical head in the air outlet towards the direction away from the air inlet pipe. This reduces the air outlet channel formed by the air outlet away from the air inlet pipe and the corresponding conical head. Then, use the positioning screw to restrict the relative position of the column rod and the positioning sleeve, so that the air velocity of the air outlet away from the air inlet pipe is greater than that of the air outlet closer to the air inlet pipe. The increased air velocity increases the force on the plate, thereby balancing the force on the plate under the pressure plate. This allows for adjustment of the air velocity per unit time of different air outlets as needed.

[0015] 2. Install two frustums on the upper surface of the top cover, and open two threaded blind holes on the upper surface of the frustums to mate with screws. Then, use screws to connect the moving end of the cylinder to the top cover, so that the screws are threadedly connected to the frustums. This achieves a local increase in the thickness of the part of the top cover where the screws are installed, without having to increase the overall thickness of the top cover. Attached Figure Description

[0016] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the structure of an air flotation pressure plate device according to the present invention;

[0018] Figure 2This is an enlarged view of point A in the air flotation pressure plate device of this utility model;

[0019] Figure 3 This is a perspective view of the pressure plate in the air flotation pressure plate device of this utility model;

[0020] Figure 4 This is a perspective view of the top cover in an air flotation pressure plate device according to the present invention;

[0021] Figure 5 This is a perspective view of the positioning sleeve in an air-float pressure plate device according to the present invention;

[0022] In the diagram: 1-Pressure plate, 2-Lower connecting ear, 3-Top cover, 4-Upper connecting ear, 5-Through hole, 6-Frustum, 7-Connecting ring, 8-Inlet pipe, 9-Column rod, 10-Conical head, 11-Limiting plate, 12-Positioning screw, 13-Positioning sleeve, 14-Air outlet, 15-Groove, 16-Plug-in frame, 17-Round hole, 18-Threaded hole. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] Please see Figure 1 , Figure 3 and Figure 4 This utility model provides a technical solution: an air-floating pressure plate device, including a pressure plate 1, the upper surface of the pressure plate 1 is recessed downward to form a groove 15, a plurality of air outlet holes 14 are evenly opened in the bottom of the groove 15, a top cover 3 for sealing the groove 15 is installed on the upper end of the pressure plate 1, and a lower connecting ear 2 is fixedly connected to the upper part of the two parallel sides of the pressure plate 1, wherein the lower connecting ear 2 and the pressure plate 1 are integrally formed, and an upper connecting ear 4 is provided on the upper side of the lower connecting ear 2 to fit with the lower connecting ear 2, wherein the upper connecting ear 4 and the top cover 3 are integrally formed, and the upper connecting ear 4 and the lower connecting ear 2 are connected by bolts to complete the assembly of the top cover 3 and the pressure plate 1. At this time, the plug frame 16 fixedly connected to the lower surface of the top cover 3 fits with the inner wall of the groove 15 to prevent air from flowing out from the contact part between the top cover 3 and the pressure plate 1.

[0025] See Figures 1-5An air inlet pipe 8 for connecting to a compressed air pipeline is installed in a circular hole 17 at the center of the upper surface of the top cover 3. A connecting ring 7 is fitted onto the upper end of the air inlet pipe 8 and fixed thereto. The upper surface of the connecting ring 7 has multiple small holes for inserting bolts at equal intervals in a ring shape. Multiple through holes 5 are evenly distributed on the upper surface of the top cover 3, aligned with the air outlet 14. A column rod 9 is inserted into the through hole 5. A positioning sleeve 13 is provided on the upper side of the through hole 5 and arranged concentrically with the through hole 5. The positioning sleeve 13 is fitted onto the column rod 9 and fixed to the top cover 3. A positioning screw 12 for limiting the position of the column rod 9 is threaded into a threaded hole 18 on the outer surface of the positioning sleeve 13. A conical head 10 for inserting into the air outlet 14 is fixed to the lower end of the column rod 9. The diameter of the conical head 10 decreases from top to bottom and is adjusted downward along the through hole 5. The position of the column rod 9 is such that the conical head 10 is inserted into the air outlet 14, and the depth of the conical head 10 inserted into the air outlet 14 gradually increases in the direction away from the air inlet pipe 8. This reduces the air outlet channel formed by the air outlet 14 away from the air inlet pipe 8 and the corresponding conical head 10. Then, the positioning screw 12 is used to limit the relative position of the column rod 9 and the positioning sleeve 13, so that the air velocity of the air outlet 14 away from the air inlet pipe 8 is greater than that of the air outlet 14 near the air inlet pipe 8. The increased air velocity increases the force on the plate, thereby making the plate under the pressure plate 1 more evenly stressed. This allows the air velocity of different air outlets 14 per unit time to be adjusted as needed. The upper end of the column rod 9 is connected and fixed with a limiting plate 11 with a diameter larger than that of the column rod 9. Under the restriction of the limiting plate 11, the column rod 9 is prevented from disengaging from the positioning sleeve 13 when the positioning screw 12 is loosened.

[0026] See Figure 1 Both sides of the intake pipe 8 are provided with frustums 6 for connecting the moving end of the cylinder. The frustums 6 are connected and fixed to the top cover 3. Two threaded blind holes are symmetrically opened on the upper surface of the frustums 6. Two frustums 6 are installed on the upper surface of the top cover 3, and two threaded blind holes for screws are opened on the upper surface of the frustums 6. Then, the moving end of the cylinder is connected to the top cover 3 by screws, so that the screws are threadedly connected to the frustums 6, thereby increasing the thickness of the part of the top cover 3 where the screws are installed locally, without having to increase the thickness of the top cover 3 as a whole.

[0027] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An air float platen apparatus comprising a platen (1) characterized by: The upper surface of the pressing plate (1) is concave downward to form a groove (15), a plurality of air outlet holes (14) are uniformly arranged on the bottom of the groove (15), a top cover (3) for blocking the groove (15) is arranged on the upper end of the pressing plate (1), the top cover (3) is connected and fixed with the pressing plate (1) through bolts, an air inlet pipe (8) for connecting the compressed air pipeline is arranged on the upper surface of the top cover (3), a plurality of perforations (5) aligned with the air outlet holes (14) are uniformly arranged on the upper surface of the top cover (3), a column (9) is arranged in the perforation (5), a positioning sleeve (13) concentrically arranged with the perforation (5) is arranged on the upper side of the perforation (5), the positioning sleeve (13) is sleeved on the column (9), the positioning sleeve (13) is connected and fixed with the top cover (3), the positioning sleeve (13) is threadedly connected with a positioning screw (12) for limiting the position of the column (9), a tapered head (10) for being inserted into the air outlet hole (14) is connected and fixed on the lower end of the column (9), and the diameter of the tapered head (10) gradually decreases from top to bottom.

2. An air float presser plate apparatus as defined in claim 1, wherein: The air inlet pipe (8) is provided with a circular table (6) for connecting the movable end of the air cylinder on both sides, the circular table (6) is connected and fixed with the top cover (3), and two screw blind holes are symmetrically arranged on the upper surface of the circular table (6).

3. The air float presser plate apparatus of claim 1, wherein: A circular hole (17) is arranged on the middle position of the upper surface of the top cover (3), and the lower end of the air inlet pipe (8) is connected and fixed in the circular hole (17).

4. An air float presser plate assembly as defined in claim 3 wherein: A connecting ring (7) connected and fixed with the air inlet pipe (8) is sleeved on the upper end of the air inlet pipe (8), a plurality of small holes for inserting bolts are annularly and equidistantly arranged on the upper surface of the connecting ring (7).

5. The air float presser device of claim 1, wherein: Threaded holes (18) are arranged on the outer surface of the positioning sleeve (13), and the positioning screw (12) is threadedly connected in the threaded hole (18).

6. The air float presser device of claim 1, wherein: The lower surface of the top cover (3) is connected and fixed with a plug-in frame (16), and the plug-in frame (16) is attached to the inner wall of the groove (15).

7. The air float presser device of claim 1, wherein: Lower connecting ears (2) are connected and fixed on the upper positions of the two parallel sides of the pressing plate (1), upper connecting ears (4) attached to the lower connecting ears (2) are arranged on the upper sides of the lower connecting ears (2), the upper connecting ears (4) are connected and fixed with the top cover (3), and the upper connecting ears (4) are connected and fixed with the lower connecting ears (2) through bolts.

8. An air float presser plate assembly as defined in claim 7 wherein: The upper connecting ears (4) and the top cover (3) are an integral structure, and the lower connecting ears (2) and the pressing plate (1) are an integral structure.

9. The air float presser device of claim 1, wherein: A limiting disc (11) is connected and fixed on the upper end of the column (9), and the diameter of the limiting disc (11) is greater than the diameter of the column (9).

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