CN116652773A - Vacuum conveying table of plate sander - Google Patents

Abstract

The invention relates to a vacuum conveying table of a plate sander, which belongs to the field of sanding machines, and includes a feeding table, two ends of the feeding table are rotatably connected with transmission rollers, and a transmission network is provided on the outer cover of the transmission roller, and the transmission network is along the feeding table. The top and bottom of the feeding table are hollow, and there are multiple positioning plates fixedly connected to the feeding table. The positioning board divides the feeding table into multiple compartments. The top of the feeding table is equipped with multiple ventilation areas. The ventilation area is set perpendicular to the conveying direction of the conveying network. There are multiple ventilation holes in the ventilation area of the feeding table. The ventilation holes are connected with the inside of the feeding table. There are suction ports on both sides of the feeding table, and the suction port is fixedly connected with a suction pipe , the exhaust pipe is fixedly connected with an exhaust fan. The invention has the effect of reducing the displacement between the plate and the conveying net without affecting the processing efficiency of the plate.

Description

A vacuum conveying table of a board sander

technical field

The invention relates to the field of sanding machines, in particular to a vacuum conveying platform of a plate sanding machine.

Background technique

Panels are the most common raw materials in the production of various types of furniture. Through the splicing and installation of panels, furniture types with various functions can be formed. Wherein, after the board is cut into a specific size, it needs to be further painted, edged or veneered. However, whether it is painting, welting or skinning, it is required that the covered surface has higher flatness and fewer burrs, so as to improve the effect of painting or skinning. Therefore, before the above steps are performed on the existing boards, Generally, grinding is also required to improve the flatness of the coated surface. The existing grinding generally has two methods: manual or automatic. The manual method uses sandpaper to manually grind back and forth on the surface of the plate. The efficiency of grinding in this way Low, not suitable for mass production and processing; the automatic method is realized by an automatic sand mill.

The sander is used to sand the rough surface of the wood product to make it flat and smooth. When the plate passes through the automatic sander through the conveyor network, the plate is sanded with an abrasive belt. Although this grinding method has a fast processing speed and high efficiency, when the sander is working, the plate is driven by the conveyor network. , and friction occurs between the upper surface of the sanding belt and the plate, and the friction between the sanding belt and the plate can easily cause the plate to shift on the conveyor network, so that the plate cannot be processed and polished at a normal speed, which affects the processing efficiency.

Contents of the invention

In order to reduce the displacement between the plate and the conveying net without affecting the processing efficiency of the plate, the invention provides a vacuum conveying platform of a plate sander.

The vacuum conveying platform of a plate sander provided by the present invention adopts the following technical scheme:

A vacuum conveying table for a plate sander, including a feeding table, two ends of the feeding table are rotatably connected with transmission rollers, and the outer cover of the transmission roller is provided with a conveying net, which is transported along the top and bottom of the feeding table. It is hollow, and there are multiple positioning plates fixedly connected to the feeding table. The positioning board divides the feeding table into multiple compartments. There are multiple ventilation areas on the top of the feeding table, and the ventilation areas are set perpendicular to the transmission direction of the conveyor network. There are a plurality of ventilation holes in the ventilation area of the feeding table, and the ventilation holes are connected with the inside of the feeding table. There are suction ports on both sides of the feeding table.

By adopting the above-mentioned technical scheme, during the forward transmission process of the plates following the conveying network, the exhaust fan works, so that the exhaust pipe, the exhaust fan and the feeding table are in a negative pressure state, so that the plates on the conveying net are adsorbed on the conveying net, and then the plates are The connection with the conveying net is tighter, thereby reducing the friction between the sanding belt and the plate, causing the plate to shift on the conveying net, without affecting the processing efficiency of the plate.

Optionally, the ventilation holes are arranged in a trumpet shape.

By adopting the above technical scheme, the trumpet-shaped air exhaust hole makes the area between the conveyor net and the exhaust hole larger for the airflow to pass through, making the contact between the plate and the conveyor net closer, and at the same time the contact area between the conveyor net and the feeding table is reduced. Small, to prevent the conveyor net and the feeding platform from being adsorbed together, and increase the resistance of the conveyor net to advance.

Optionally, a plurality of reinforcing plates are fixedly connected between two adjacent positioning plates, the reinforcing plates are arranged perpendicular to the positioning plates, and the reinforcing plates are evenly distributed along the length direction of the positioning plates.

By adopting the above technical solution, the reinforcing plate is used to strengthen the connection between the two positioning plates, so that the connection of the positioning plates is more stable.

Optionally, the feeding table is provided with two enhanced wind areas on both sides along the conveying direction of the conveying network, and the enhanced wind area of the feeding table is provided with a plurality of ventilation holes.

By adopting the above-mentioned technical scheme, strengthening the ventilation holes in the wind area makes the wind force near the two sides in the feeding platform greater than the wind force in the middle of the feeding platform, which is beneficial to adsorb both sides of the conveying net on the feeding platform and reduce the warping of both sides of the conveying net.

Optionally, the two ends of the positioning plate are respectively hinged with adjusting plates, the adjusting plate is hinged on the positioning plate through a hinge, and the positioning plate is connected with a device for controlling the turning of the adjusting plate into the compartment to adjust the draft area and strengthen the wind area. The driving component of the air pressure; the distance sensor is set on the feeding table, and the distance sensor is used to detect whether the two sides of the conveying net are tilted. When the tilting of the two sides of the conveying net is detected, the driving component is controlled to work, and the driving component is used to drive and adjust Flipping the plate into the compartment reduces the air flow aperture in the compartment.

By adopting the above technical solution, the distance sensor detects the distance between the conveying net and the feeding table in real time. When the distance sensor detects that the two sides of the conveying net are tilted, the driving component is controlled to push the adjustment plate to turn inside the compartment, reducing the two sides of the compartment. The diameter of the air circulation at the end becomes smaller, which reduces the air pressure in the compartment, which causes the air pressure on both sides of the feeding table to increase, so that the conveying net is adsorbed and abutted on the feeding table, thereby achieving the effect of reducing the warping of both sides of the conveying net.

Optionally, the drive assembly includes a cylinder fixedly connected to the inner wall of the feeding table, the piston rod of the cylinder is arranged along the conveying direction of the conveying net, the end of the piston rod of the cylinder is fixedly connected with a driving rod, and the driving rod is arranged along the conveying direction of the conveying net The driving rod is provided with a connecting rod, and the connecting rod is arranged perpendicular to the transmission direction of the conveying network. One end of the rod one is hinged on the same side of the adjusting plate.

By adopting the above-mentioned technical scheme, when the distance sensor detects that both sides of the conveying network are tilted, the piston rod of the control cylinder is retracted, and the piston rod of the cylinder drives the driving rod and the connecting rod to move in the direction of the cylinder, and the adjusting plate is pushed to the direction of the cylinder through the connecting rod one. Movement in the compartment, at this time, the flow diameter of the compartment becomes smaller, which causes the air pressure on both sides of the feeding table to increase, making the plate and the conveying net more tightly contacted.

Optionally, a stopper 1 is fixedly connected to the position corresponding to each adjustment plate on the feeding platform, and the stopper 1 is arranged parallel to the positioning plate, so that the adjustment plate and the positioning plate are arranged in parallel.

By adopting the above technical scheme, the stopper and the pair of adjusting plates are limited so that the adjusting plate and the positioning plate are on the same line, and the negative pressure in the compartment is ensured to be normal when the conveying net is not tilted, so as to ensure that the plate can be adsorbed on the sent online.

Optionally, a stopper 2 is provided in the compartment of the feeding table, and the stopper 2 is used to limit the adjustment plate, so that the adjustment plate can rotate 90 degrees to be perpendicular to the positioning plate.

By adopting the above technical solution, the stopper 2 is used to turn the adjustment plate to be perpendicular to the positioning plate, thereby reducing the diameter of the air flow in the compartment, thereby increasing the air flow on both sides of the feeding table.

In summary, the present invention includes at least one of the following beneficial technical effects:

1. By setting up a plurality of ventilation areas on the top of the feeding platform, the ventilation areas are set perpendicular to the transmission direction of the conveying network, and there are multiple ventilation holes in the ventilation area of the feeding platform, and the ventilation holes are connected with the inside of the feeding platform. There are air outlets on both sides, and the air outlet is fixedly connected with an exhaust pipe, and the air exhaust pipe is fixedly connected with an exhaust fan. The exhaust fan works to make the air exhaust pipe, the exhaust fan and the feeding table in a negative pressure state, so that the air on the conveyor network The plate is adsorbed on the conveyor net, which makes the plate and the conveyor network more tightly connected, thereby reducing the friction between the sanding belt and the plate and causing the plate to shift on the conveyor net, without affecting the processing efficiency of the plate;

2. There are two enhanced wind areas on both sides of the feeding table along the transmission direction of the conveyor network. The enhanced wind area of the feeding table is equipped with multiple exhaust holes. Greater than the wind force in the middle of the feeding table, it is beneficial to absorb the two sides of the conveyor net on the feeding table and reduce the tilting of the two sides of the conveyor network;

3. Adjusting plates are hinged at both ends of the positioning plate, and the adjusting plate is hinged on the positioning plate through hinges. The inner wall of the feeding table is provided with a cylinder, and the end of the piston rod of the cylinder is fixedly connected with a drive rod. The drive rod moves along the conveyor network. The transmission direction of the connecting rod is set, the driving rod is provided with a connecting rod, and the connecting rod is arranged perpendicular to the transmission direction of the conveying network. 2. One end away from connecting rod 1 is hinged on the same side of the adjusting plate; the feeding table is provided with a distance sensor, which is used to detect whether the two sides of the conveying net are tilted. The piston rod of the control cylinder is retracted, and the piston rod of the cylinder drives the drive rod and the connecting rod to move in the direction of the cylinder, and the adjustment plate is pushed to move into the compartment through the connecting rod. At this time, the circulation diameter of the compartment becomes smaller, resulting in The air pressure on both sides is increased, which makes the plate and the conveying net more tightly abutted.

Description of drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application.

Figure 2 is a sectional view of the present application.

Figure 3 is a sectional view for highlighting the positioning plate and the reinforcement plate.

Fig. 4 is a structural schematic diagram for highlighting the driving assembly.

Fig. 5 is a structural schematic diagram for highlighting the adjusting plate and the driving assembly.

FIG. 6 is an enlarged view of part A of FIG. 5 .

Explanation of reference signs: 1. Feeding platform; 11. Drive roller; 111. Driving motor; 2. Conveyor net; 21. Positioning plate; 22. Compartment; 23. Reinforcing plate; 25. Exhaust air outlet; 251. Exhaust duct; 252. Exhaust fan; 26. Enhanced wind area; 27. Adjusting plate; 28. Drive assembly; 281. Cylinder; 282. Drive rod; 283. Connecting rod; 284. Connecting rod One; 2841, connecting rod two; 285, stop one; 286, stop two; 29, distance sensor.

Detailed ways

The present invention will be described in further detail below in conjunction with accompanying drawings 1-6.

The embodiment of the invention discloses a vacuum conveying platform of a board sander. Referring to Fig. 1 and Fig. 2, a vacuum conveying table of a board sander includes a feeding table 1, and the two ends of the feeding table 1 are rotatably connected with a transmission roller 11, and the transmission roller 11 is covered with a transmission net 2, and the transmission net 2 is used for To transport the sheet into the sander, the feeding table 1 is fixedly connected with a drive motor 111, the output shaft of the drive motor 111 is fixed to one of the drive rollers 11; the sheet is placed on the conveyor net 2, and the drive roller 11 drives the conveyor net 2 Movement, the plates are transported forward following the conveyor network 2.

Referring to Fig. 3 and Fig. 4, the inside of the feeding table 1 is hollow, and the conveying net 2 is transported along the top and bottom of the feeding table 1; the feeding table 1 is fixedly connected with a plurality of positioning plates 21, and the positioning plates 21 are fixedly connected to the feeding table 1 There is a gap between the two ends of the positioning plate 21 and the inner wall of the feeding table 1. The positioning plate 21 is arranged perpendicular to the transmission direction of the conveying network 2. The positioning plate 21 divides the feeding table 1 into multiple compartments. 22; There are multiple reinforcing plates 23 fixedly connected between two adjacent positioning plates 21, the reinforcing plates 23 are arranged perpendicular to the positioning plate 21, and the reinforcing plates 23 are evenly distributed along the length direction of the positioning plate 21, and the reinforcing plates 23 are used for Strengthen the connection between the two positioning plates 21 to make the positioning plate 21 more stable. The height of the positioning plate 21 is less than the height of the feeding table 1, so that the bottoms of the adjacent compartments 22 are connected to each other; the top of the feeding table 1 is provided with multiple A draft area 24, the draft area 24 is perpendicular to the transmission direction of the conveying network 2 and is provided with a plurality of draft holes 241 in the draft area 24 of the feeding table 1, and the draft holes 241 are trumpet-shaped, and the draft holes 241 communicate with the feeding table 1 The two sides of the feeding platform 1 are provided with an air outlet 25, the air outlet 25 is fixedly connected with an air exhaust pipe 251, and the air exhaust pipe 251 is fixedly connected with an exhaust fan 252.

During the forward transport of the plates following the conveying network 2, the exhaust fan 252 works, making the exhaust pipe 251, the exhaust fan 252 and the inside of the feeding platform 1 in a negative pressure state, so that the plates on the conveying network 2 are adsorbed on the conveying network 2, The plate and the conveying net 2 are connected more tightly, thereby preventing the friction between the sanding belt and the plate from causing the plate to shift on the conveying net 2, without affecting the processing efficiency of the plate.

Since the transmission roller 11 tensions the conveying net 2 at both ends of the feeding table 1, during the transmission process of the conveying net 2, both sides of the conveying net 2 in the conveying direction are easy to lift up, and the warping of the conveying net 2 causes the two sides of the sheet to It is easy to warp, and eventually the sanding belts on both sides of the plate will be polished deeper; in order to prevent the two sides of the conveyor net 2 from tilting upward, the feeding table 1 is provided with two enhanced wind zones 26 on both sides of the conveyor net 2 along the transmission direction. The enhanced wind area 26 of the feeding table 1 is provided with a plurality of air extraction holes 241, and the air extraction holes 241 make the wind force near the two sides of the feeding table 1 greater than the wind force in the middle of the feeding table 1, thereby facilitating the adsorption of both sides of the conveying network 2 on the feeding table 1, reduce the lifting of both sides of the conveyor net 2.

With reference to Fig. 5 and Fig. 6, the two ends of every spaced positioning plate 21 are respectively hinged with regulating plate 27, and regulating plate 27 is hinged on the positioning plate 21 by hinge, is connected with driving assembly 28 on the positioning plate 21, and driving assembly 28 uses When driving the adjustment plate 27 to flip in the compartment 22, the airflow aperture between the adjacent compartments 22 is blocked, the air pressure in the compartment 22 is reduced, and the air pressure is concentrated on both sides of the conveying network 2 transmission direction, thereby further Increase the air pressure on both sides of the conveying network 2 in the feeding table 1, so that both sides of the plate are adsorbed on both sides of the conveying network 2. The driving assembly 28 includes a cylinder 281 fixedly connected to the inner wall of the feeding table 1, the piston rod of the cylinder 281 is arranged along the transmission direction of the conveying net 2, and the end of the piston rod of the cylinder 281 is fixedly connected with a driving rod 282, and the driving rod 282 is arranged along the conveying direction of the conveying net 2. The transmission direction of the transmission net 2 is set, the position of the drive rod 282 corresponding to the positioning plate 21 is fixedly connected with a connecting rod 283, the connecting rod 283 is arranged perpendicular to the transmission direction of the transmission network 2, and the end of the connecting rod 283 is hinged with a connecting rod 284. 284 is hinged with connecting rod two 2841 away from one end of connecting rod 283, and one end of connecting rod two 2841 away from connecting rod one 284 is hinged on the same side of adjusting plate 27, and the position corresponding to each adjusting plate 27 on the feeding table 1 is fixedly connected with a stopper. Block one 285 and stopper two 286, stopper one 285 is arranged in parallel with positioning plate 21, stopper two 286 is positioned between adjacent two positioning plates 21, stopper one 285 and stopper two 286 are all used for adjusting The plate 27 is used to limit the position, so that the adjusting plate 27 and the positioning plate 21 are arranged in parallel, and the stopper 286 is used to turn the adjusting plate 27 to be perpendicular to the positioning plate 21, so as to reduce the diameter of the air flow in the compartment 22, thereby increasing the feeding The air flow on both sides of the table 1; the feeding table 21 is evenly provided with a plurality of distance sensors 29 along its length near the two sides, and the distance sensors 29 are used to detect whether the two sides of the conveying network 2 are tilted. When the distance sensor 29 detects that the conveying network 2 After the two sides are tilted, the piston rod of the control cylinder 281 is retracted; the piston rod of the cylinder 281 drives the driving rod 282 and the connecting rod 283 to move in the direction of the cylinder 281, and pushes the adjustment plate 27 to the direction of the stopper 2 286 through the connecting rod one 284 Move until it abuts against the second stopper 286. When the adjustment plate 27 abuts against the second stopper 286, the flow diameter of the compartment 22 becomes smaller at this time, which causes the air pressure on both sides of the feeding table 1 to increase, so that the plate and the conveying network 2 The abutment is tighter.

The implementation principle of the vacuum conveying table of a board sander in the embodiment of the present invention is: the board is transported forward with the conveying net 2, and the exhaust fan 252 draws air to make the inside of the feeding table 1 in a vacuum state, and then the board is adsorbed on the conveying net 2 The distance sensor 29 detects in real time the distance between the two sides of the conveying net 2 transmission direction and the conveying net 2, and when the distance is detected to be greater than the preset value, it means that the both sides of the conveying net 2 are tilted up, and the piston rod of the control cylinder 281 Retract, the piston rod of the cylinder 281 drives the driving rod 282 and the connecting rod 283 to move towards the direction of the cylinder 281, pushes the adjustment plate 27 to move toward the direction of the stopper 286 through the connecting rod one 284 until it abuts against the two stopper 286, when adjusting Plate 27 abuts against stopper 2 286. At this time, the air circulation diameter in compartment 22 becomes smaller, which causes the air pressure on both sides of feeding table 1 to increase. Make the plate and the conveying net 2 abut more closely.

The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention, so: all equivalent changes made according to the structure, shape and principle of the present invention should be covered by the protection scope of the present invention Inside.

Claims (8)

1. A vacuum conveying platform for a plate sander, comprising a feeding platform (1), the two ends of the feeding platform (1) are rotatably connected to a transmission roller (11), and the transmission roller (11) is covered with a transmission net (2) , the conveyor net (2) is transported along the top and bottom of the feeding table (1), characterized in that: The inside of the feeding table (1) is hollow, and a plurality of positioning plates (21) are fixedly connected to the feeding table (1), and the positioning plates (21) divide the feeding table (1) into a plurality of compartments (22) , the top of the feeding table (1) is provided with a plurality of draft areas (24), the draft areas (24) are arranged perpendicular to the conveying direction of the conveying network (2), and there are multiple ventilation areas (24) in the feeding table (1). A ventilation hole (241), the ventilation hole (241) is communicated with the feed table (1), the both sides of the feed table (1) are provided with a suction port (25), and the suction port (25) is fixedly connected with a suction pipe ( 251), the exhaust pipe (251) is fixedly connected with an exhaust fan (252). 2 . The vacuum conveying platform of a plate sander according to claim 1 , characterized in that: the ventilation hole ( 241 ) is arranged in a trumpet shape. 3 . 3. The vacuum conveying platform of a plate sander according to claim 1, characterized in that: a plurality of reinforcing plates (23) are fixedly connected between two adjacent positioning plates (21), strengthening The plate (23) is arranged perpendicular to the positioning plate (21), and the reinforcing plate (23) is evenly distributed along the length direction of the positioning plate (21). 4. The vacuum conveying platform of a plate sander according to claim 1, characterized in that: said feeding platform (1) is provided with two enhanced wind zones ( 26), the enhanced wind area (26) of the feeding platform (1) is provided with a plurality of exhaust holes (241). 5. The vacuum conveying platform of a plate sander according to claim 4, characterized in that: The two ends of described locating plate (21) are respectively hinged with adjusting plate (27), and adjusting plate (27) is hinged on the locating plate (21) by hinge, is connected on the locating plate (21) and is used for controlling adjusting plate (27). ) turn over in the compartment (22) to adjust the driving assembly (28) of the air pressure in the draft area (24) and the enhanced air area (26); The feeding table (1) is provided with a distance sensor (29), and the distance sensor (29) is used to detect whether the two sides of the conveying net (2) are tilted, and when it is detected that the both sides of the conveying net (2) are warped, control The drive assembly (28) works, and the adjustment plate (27) is driven by the drive assembly (28) to turn over in the compartment (22) to reduce the air circulation diameter in the compartment (22). 6. The vacuum conveying platform of a board sander according to claim 5, characterized in that: the drive assembly (28) includes a cylinder (281) fixedly connected to the inner wall of the feeding platform (1), and the cylinder (281 ) is set along the transmission direction of the transmission net (2), the end of the piston rod of the cylinder (281) is fixedly connected with a drive rod (282), and the drive rod (282) is set along the transmission direction of the transmission net (2), driving Bar (282) is provided with connecting rod (283), and connecting rod (283) is arranged perpendicular to the transmission direction of transmission network (2), and the end of connecting rod (283) is hinged with connecting rod one (284), and connecting rod one ( 284) connecting rod two (2841) is hinged away from one end of connecting rod (283), and connecting rod two (2841) is hinged on the same side of adjusting plate (27) away from one end of connecting rod one (284). 7. The vacuum conveying table of a board sander according to claim 4, characterized in that: the position corresponding to each adjusting plate (27) on the feeding table (1) is fixedly connected with a stopper one (285 ), block one (285) is set in parallel with positioning plate (21), makes adjustment plate (27) and positioning plate (21) parallel setting. 8. The vacuum conveying table of a plate sander according to claim 4, characterized in that: a stopper 2 (286) is arranged in the compartment (22) of the feeding table (1), and the stopper 2 (286) is used to limit the adjustment plate (27), so that the adjustment plate (27) is rotated ninety degrees to be perpendicular to the positioning plate (21).