Pressing beam lifting mechanism of cut-to-size saw

Abstract

The utility model relates to a pressing beam lifting mechanism of a cut-to-size saw, and belongs to the technical field of cut-to-size saws. The pressing beam lifting mechanism of the cut-to-size saw comprises a pressing beam, double-outlet air cylinders arranged at the two ends of the pressing beam and an air path control system. Each double-outlet air cylinder is provided with a first air chamber and a second air chamber which are arranged up and down. The air path control system comprises an air source, an electromagnetic valve, an electric proportional valve, a speed regulating valve and a quick exhaust valve, the air source is communicated with the electromagnetic valve, the electromagnetic valve is communicated with the electric proportional valve through a first pipeline, and the electric proportional valve is communicated with first air chambers of the two double-outlet air cylinders through the quick exhaust valve; the electromagnetic valve is communicated with the speed regulating valve through a second pipeline, and the speed regulating valve is communicated with the second air chamber. According to the scheme provided by the utility model, accurate pressure control on the plate can be realized, the equipment debugging work during plate remodeling is omitted, and the effect of improving the sawing quality of the plate is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a plate cutting saw technical field especially relates to a plate cutting saw's press beam lifting mechanism. BACKGROUND

[0002] The plate cutting saw can be used for longitudinal cutting and horizontal cutting of various artificial boards such as veneer particle board, fiberboard, plywood and solid wood board, plastic board, aluminum alloy and various materials, is widely used in plate furniture industry and wood processing industry such as ship manufacturing, belongs to general equipment among woodworking machinery, and the market demand is large.

[0003] As one of the core components of the plate cutting saw equipment, the press beam fixes the board on the sawing station in a pressing manner, and appropriate pressure is directly related to the sawing quality of the board. At present, the pressure of the press beam is generally adjusted manually. In the debugging process, the pressure is quantitatively evaluated by pressing single board, and multiple tests need to be carried out for the pressure to ensure the actual sawing effect of the pressure. However, due to the difference in experience of the operator, the difference in the number of layers of the board and the thickness gap of the board, the set pressure often deviates, resulting in problems such as board loosening or indentation. SUMMARY

[0004] In order to overcome the problems in the related art, the utility model provides a plate cutting saw's press beam lifting mechanism, which can realize accurate pressure control of the board, saves the equipment debugging work when the board is changed, and plays a role in improving the sawing quality of the board.

[0005] The utility model provides a plate cutting saw's press beam lifting mechanism, including press beam, the double outlet cylinder of setting in the both ends of press beam and gas path control system, the double outlet cylinder has the first gas chamber and the second gas chamber of setting up and down,

[0006] The gas path control system includes a gas source, a solenoid valve, an electric proportional valve, a speed regulating valve and a quick exhaust valve. The gas source is connected to the solenoid valve. The solenoid valve is connected to the electric proportional valve through a first pipeline. The electric proportional valve is connected to the first gas chambers of the two double outlet cylinders through a quick exhaust valve. The solenoid valve is connected to the speed regulating valve through a second pipeline. The speed regulating valve is connected to the second gas chamber.

[0007] In some embodiments, the exhaust end of the solenoid valve and the exhaust end of the quick exhaust valve are both provided with a silencer.

[0008] In some embodiments, the quick exhaust valve has a valve core, a first valve port, a second valve port and a third valve port. The first valve port is connected to the electric proportional valve. The second valve port is connected to the double outlet cylinder. The third valve port is connected to the silencer.

[0009] The quick exhaust valve is configured to:

[0010] When compressed air enters from the first valve port, the valve core closes the third valve port, so that the first valve port is communicated with the second valve port;

[0011] When the compressed air stops being delivered to the first valve port, the valve core closes the second valve port, so that the first valve port is communicated with the third valve port.

[0012] In some embodiments, the pressure regulating range of the electric proportional valve is 0.005MPa-0.9MPa.

[0013] In some embodiments, the air source comprises an air compressor, an air dryer, a first air tank, a one-way valve and a second air tank which are sequentially communicated, and the second air tank is communicated with the electromagnetic valve.

[0014] In some embodiments, the air compressor is an electromagnetic air compressor; and a pressure stabilizing valve is further arranged between the first air tank and the second air tank.

[0015] In some embodiments, the volume of the second air tank is 10L.

[0016] The technical scheme provided by the utility model can have the following beneficial effects:

[0017] When the technical scheme of the utility model is applied, the lifting or lowering of the pressing beam can be realized by controlling the opening and closing of the electromagnetic valve; after the output pressure which is matched with the material quality, thickness and layer number of the board is preset, the accurate pressure control can be realized by the electric proportional valve, the automatic continuous and stepless adjustment of the pressing beam pressure is ensured, the standardized control of the board pressure is realized by the electric proportional valve, the equipment debugging during the change of the board type is saved, and the working efficiency and sawing quality of the board saw are effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] The above and other objects, features and advantages of the utility model will become more apparent from the following detailed description of exemplary embodiments of the utility model, taken in conjunction with the accompanying drawings in which like reference characters typically identify corresponding components throughout the typical embodiments of the utility model.

[0019] Fig. 1 is the structure schematic view of the pressing beam lifting mechanism of the board saw shown in the utility model embodiment;

[0020] Fig. 2 is the structure schematic view of the air path control system shown in the utility model embodiment;

[0021] Fig. 3 is the structure schematic view of the air source shown in the utility model embodiment.

[0022] Reference signs:

[0023] 1, press beam; 2, double gas cylinder; 3, air source; 4, electromagnetic valve; 5, electric proportional valve; 6, speed regulating valve; 7, quick exhaust valve; 8, muffler; 9, air compressor; 10, air dryer; 11, first air tank; 12, check valve; 13, second air tank; 14, pressure stabilizing valve. DETAILED DESCRIPTION

[0024] Preferred embodiments of the present application will be described in more detail with reference to the drawings. Although the preferred embodiments of the present application are shown in the drawings, it is to be understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present application will be more thoroughly and completely conveyed to those skilled in the art, and the scope of the present application will be fully conveyed to those skilled in the art.

[0025] In the description of the present application, it should be understood that the terms "one end", "the other end", "outer side", "upper", "inner side", "horizontal", "coaxial", "central", "end", "length", "outer end" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0026] In addition, in the description of the present application, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically limited.

[0027] The terms used in this invention, such as “above,” “over,” “below,” and “under,” indicating spatial relative position, are for ease of description to depict the relationship of one unit or feature relative to another unit or feature as shown in the accompanying drawings. The terms of spatial relative position may be intended to include different orientations of the device in use or operation other than those shown in the figures. For example, if the device in the figures is flipped, a unit described as being “below” or “under” other units or features would be “above” other units or features. Therefore, the exemplary term “under” can encompass both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or other orientations), and the spatially related descriptive terms used herein shall be interpreted accordingly. In this invention, unless otherwise expressly specified and limited, the terms “set,” “socket,” “connect,” “through,” “plug,” etc., shall be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral part; as a mechanical connection or an electrical connection; as a direct connection or an indirect connection through an intermediate medium; as a connection within two elements or an interaction between two elements, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] The technical solutions of the embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0029] like Figs. 1 to 3 As shown, the present invention provides a pressure beam lifting mechanism for a panel saw, including a pressure beam 1, a double-outlet cylinder 2 disposed at both ends of the pressure beam 1, and an air circuit control system. The double-outlet cylinder 2 has a first air chamber and a second air chamber disposed vertically.

[0030] The air circuit control system includes an air source 3, a solenoid valve 4, an electro-proportional valve 5, a speed control valve 6, and a rapid exhaust valve. The air source 3 is connected to the solenoid valve 4. The solenoid valve 4 is connected to the electro-proportional valve 5 through a first pipeline. The electro-proportional valve 5 is connected to the first air chamber of the two dual-outlet cylinders 2 through the rapid exhaust valve. The solenoid valve 4 is connected to the speed control valve 6 through a second pipeline. The speed control valve 6 is connected to the second air chamber.

[0031] Furthermore, both the exhaust end of the solenoid valve 4 and the exhaust end of the quick exhaust valve are equipped with a silencer 8.

[0032] Furthermore, the aforementioned quick exhaust valve has a valve core, a first valve port, a second valve port, and a third valve port; the first valve port is connected to an electric proportional valve 5; the second valve port is connected to a dual-outlet cylinder 2; and the third valve port is connected to a muffler 8.

[0033] The quick exhaust valve is configured as follows:

[0034] When compressed air enters from the first valve port, the valve core closes the third valve port to make the first valve port conduct with the second valve port;

[0035] When the compressed air stops being delivered to the first valve port, the valve core closes the second valve port to make the first valve port conduct with the third valve port.

[0036] When only the effect of the compression beam 1 on sawing is considered, when the compression beam 1 exerts too low pressure on the plate, the plate is prone to deviation, which can cause the following problems: 1. the sawing lines are uneven or wavy; 2. the cutting plane is not smooth, and burrs or burrs appear; 3. the sawing edge of the plate is inclined; 4. the sawing edges of the multi-layer plate are uneven. When the compression beam 1 exerts too much pressure on the plate, the plate surface is prone to indentation, and the sawing surface is prone to edge explosion. Therefore, the appropriate pressure of the compression beam 1 is directly related to the sawing quality of the plate.

[0037] When the technical scheme of the utility model is applied, the number of double air cylinders 2 is two, which are located at both ends of the compression beam 1, the fixed end of the double air cylinder 2 is connected with the compression beam 1, and the output rod of the double air cylinder 2 is fixed on the plate saw. When the compression beam 1 is lowered, the first pipeline connected with the electromagnetic valve 4 is opened, and then the compressed gas flows through the electric proportional valve 5 and the two quick exhaust valves 7 and enters the first air chamber of the two double air cylinders 2. The output rod is driven to move by the compressed gas, and since the two ends of the output rod are fixed on the plate saw, the fixed end of the double air cylinder 2 is lowered and drives the compression beam 1 to descend. When the second pipeline connected with the electromagnetic valve 4 is opened, the compressed gas flows through the speed regulating valve 6 and enters the second air chamber, and the compression beam 1 is lifted under the action of the compressed gas, and the two quick exhaust valves connected with the first air chamber are exhausted.

[0038] In order to ensure that the electric proportional valve 5 can realize precise automatic control, in the debugging stage of the equipment, the pressure parameter corresponding to the best sawing effect of the material quality, thickness and layer number of different plates is input into the control system of the plate saw, so that in the subsequent production, the output pressure of the electric proportional valve 5 can be controlled according to the material quality, layer number and thickness of different plates, and the automatic continuous and stepless adjustment of the pressure of the compression beam 1 is ensured.

[0039] The air path control system provided by the utility model can accurately realize the pressure control of the plate during the production operation of the plate sawing, and the equipment debugging work during the plate changing is saved, and the plate sawing quality is improved.

[0040] In the embodiment, the electromagnetic valve 4 can be a two-position five-way valve, or two two-position three-way valves can be provided. When the electromagnetic valve 4 is a two-position five-way valve, the AB two gas outlet holes of the two-position five-way valve are connected to the electric proportional valve 5 and the speed regulating valve 6 through a pipeline, the P gas inlet hole is communicated with the air source 3, and the RS two gas outlet holes are respectively communicated with a quick exhaust valve 7.

[0041] Preferably, the pressure regulating range of the electric proportional valve 5 is 0.005 MPa-0.9 MPa.

[0042] Further, the air source 3 is sequentially communicated with an air compressor 9, an air dryer 10, a first air tank 11, a one-way valve 12 and a second air tank 13, and the second air tank 13 is communicated with the electromagnetic valve 4.

[0043] Further, the air compressor 9 is an electromagnetic air compressor, and a pressure stabilizing valve 14 is further arranged between the first air tank 11 and the second air tank 13.

[0044] Further, the volume of the second air tank 13 is 10 L.

[0045] The air compressor 9 is connected to the air dryer 10, the air dryer 10 is arranged to effectively reduce the moisture content in the first air tank 11, and to avoid the water in the air diffusing around the mechanism of the pressure beam 1 for a long time when the quick exhaust valve is exhausting, thereby causing corrosion of the parts of the panel saw equipment. The first air tank 11 is used to store the air of the air compressor 9, the second air tank 13 is connected to the electromagnetic valve 4, and through the two-stage air storage form, the problem of unbalanced output air pressure can be avoided. The one-way valve 12 between the first air tank 11 and the second air tank 13 ensures that the compressed gas entering the second air tank 13 will not flow back to the first air tank 11. When the gas pressure of the first air tank 11 is lower than the pressure set by the pressure stabilizing valve 14, the valve port of the pressure stabilizing valve 14 is opened, and the compressed gas of the first air tank 11 enters the second air tank 13, thereby ensuring the gas pressure of the second air tank 13 and avoiding the fluctuation of the gas pressure of the second air tank 13, which causes the problems of unstable electric proportional valve 5, poor reliability and poor pressure regulating effect.

[0046] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0047] The above has described various embodiments of the present application, the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles, practical application, or improvement of technology in the market of the embodiments, or to enable other ordinary skilled in the art to understand the embodiments disclosed herein.

Claims

1. A beam press lifting mechanism for a panel saw, characterized in that The application relates to a double-outlet cylinder air supply system, which comprises a pressing beam, double-outlet cylinders arranged at both ends of the pressing beam and an air path control system. The air path control system comprises an air source, an electromagnetic valve, an electric proportional valve, a speed regulating valve and a quick exhaust valve; the air source is connected with the electromagnetic valve; the electromagnetic valve is connected with the electric proportional valve through a first pipeline; the electric proportional valve is connected with the first air chambers of the two double-outlet cylinders through the quick exhaust valve; the electromagnetic valve is connected with the speed regulating valve through a second pipeline; and the speed regulating valve is connected with the second air chambers.

2. The presser bar lift mechanism of a panel saw according to claim 1, characterized in that The exhaust ends of the electromagnetic valve and the quick exhaust valve are provided with silencers.

3. The presser bar lift mechanism of a panel saw according to claim 2, characterized in that The quick exhaust valve has a valve core, a first valve port, a second valve port and a third valve port; the first valve port is connected with the electric proportional valve; the second valve port is connected with the double-outlet cylinders; and the third valve port is connected with the silencers. The quick exhaust valve is configured as follows: When compressed air enters the first valve port, the valve core closes the third valve port, so that the first valve port is connected with the second valve port; When the supply of compressed air to the first valve port is stopped, the valve core closes the second valve port, so that the first valve port is connected with the third valve port.

4. The presser bar lift mechanism of a panel saw according to claim 1, wherein, The pressure regulating range of the electric proportional valve is 0.005-0.9 MPa.

5. The presser beam lifting mechanism of a panel saw according to claim 1, characterized in that, The air source comprises an air compressor, an air dryer, a first air tank, a one-way valve and a second air tank which are sequentially connected; and the second air tank is connected with the electromagnetic valve.

6. The presser beam lifting mechanism of a panel saw according to claim 5, characterized in that The air compressor is an electromagnetic air compressor; and a pressure stabilizing valve is further arranged between the first air tank and the second air tank.

7. The presser beam lifting mechanism of a panel saw according to claim 6, characterized in that The volume of the second air tank is 10 L.

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