Pushing device in coating machine

Abstract

The pushing device in the coating machine comprises vertical plates and a roller, the two ends of the roller are connected with the two vertical plates through bearings, first clamping grooves are formed in the side faces of the two vertical plates, the first clamping grooves are connected with one end of a first piston rod, and the other end of the first piston rod is connected to a single-acting air cylinder; a second clamping groove is further formed in the side face of the vertical plate and connected with one end of a second piston rod, and the other end of the second piston rod is connected to a double-acting air cylinder. Clamping plates are arranged at the two ends of an opening of the first clamping groove, the end, connected with the first clamping groove, of the first piston rod is of a disc-shaped structure, a first gap is formed between the disc-shaped structure and the bottom of a cavity of the first clamping groove, and a second gap is formed between the disc-shaped structure and the clamping plates. The second clamping groove and the first clamping groove are the same in structure, and the second piston rod and the first piston rod are the same in structure. The push-and-pull mechanism has the advantages that the push-and-pull function can be achieved, and the air pressure in the single-acting air cylinder can be accurately controlled, so that the thrust is accurately controlled.

Description

Technical Field

[0001] The utility model relates to the field of driving devices, in particular to a driving device in a coating machine. Background Art

[0002] There are various types of driving devices used in industry, and the commonly used ones are: hydraulic propulsion devices, pneumatic propulsion devices, and electric propulsion devices. The hydraulic propulsion device uses hydraulic oil as the power source and is suitable for large mechanical equipment, with advantages such as good stability and high strength; the pneumatic propulsion device uses compressed air as the power source and is suitable for light mechanical equipment and automated production lines, with advantages such as simple structure and low maintenance cost; the electric propulsion device uses electric energy as the power source and is suitable for most automated systems and mechanical equipment, with advantages such as fast movement speed and high movement accuracy.

[0003] In the prior art, the pneumatic propulsion device includes a single-acting cylinder and a double-acting cylinder. The single-acting cylinder has only one air inlet, so it has advantages such as small air consumption and easy control of the propulsion degree; both ends of the double-acting cylinder can intake air, so it has the functions of propulsion and pulling out, but it is difficult to accurately control the propulsion and pulling-out distances. Therefore, in order to obtain a cylinder with the functions of pushing and pulling and capable of accurately controlling the propulsion distance, it is urgent to improve the existing device to obtain a more perfect device. Summary of the Utility Model

[0004] Aiming at the problem that the existing propulsion device in the above technology cannot have both the functions of pushing and pulling and accurately control the propulsion process at the same time.

[0005] The utility model provides a driving device in a coating machine, which includes a vertical plate and a roller. A bearing is arranged at the center of the vertical plate, and both ends of the roller are connected to the two vertical plates through the bearing. First slots are arranged on the sides of the two vertical plates, and one end of the first piston rod is connected to the first slot, and the other end of the first piston rod is connected to a single-acting cylinder; a connecting block is also installed on the side of the vertical plate where the first slot is installed, a second slot is fixed on the side of the connecting block away from the vertical plate, one end of the second piston rod is connected to the second slot, and the other end of the second piston rod is connected to a double-acting cylinder;

[0006] Wherein, clamping plates are arranged at both ends of the opening of the first slot. One end of the first piston rod connected to the first slot is set as a disc structure. A first gap is arranged between the disc structure and the bottom of the cavity of the first slot, and a second gap is arranged between the disc structure and the clamping plate; the second slot has the same structure as the first slot, and the second piston rod has the same structure as the first piston rod.

[0007] As a further improvement of the present utility model, a pressure sensor is provided at the bottom of the cavity of the first card slot.

[0008] As a further improvement of the present utility model, the cavity of the first card slot penetrates the first card slot in a first linear direction, the cavity of the second card slot penetrates the second card slot in a second linear direction, and the first linear direction is perpendicular to the second linear direction.

[0009] As a further improvement of the present utility model, it further includes a bottom plate, the bottom plate is fixed to the bottoms of the two sets of vertical plates, the side surface of the bottom plate is flush with the side surfaces of the two sets of vertical plates where the connecting blocks are installed, and the side surface of the bottom plate is fixedly connected through the connecting blocks on the side surfaces of the vertical plates.

[0010] As a further improvement of the present utility model, two sets of sliders are installed on the side of the bottom plate away from the vertical plates, and the two sets of sliders are respectively slidably connected to the two sets of slide rails.

[0011] The beneficial effect of the present utility model is that, compared with the prior art, a pushing device in a coating machine provided by the present utility model can not only realize the pushing and pulling functions, but also accurately control the air pressure in the single-acting cylinder so as to accurately control the pushing distance. Brief Description of the Drawings

[0012] Figure 1 is a perspective view of the present utility model.

[0013] Figure 2 is the present utility model Figure 1 is a partial enlarged view of area A of the present utility model.

[0014] Figure 3 is a left view of the present utility model.

[0015] Figure 4 is a connection structure diagram of the card slot and the cylinder of the present utility model.

[0016] The main component symbols are explained as follows:

[0017] 1. Vertical plate; 2. Single-acting cylinder; 3. First piston rod; 4. First card slot;

[0018] 5. Double-acting cylinder; 6. Second piston rod; 7. Second card slot; 8. Connecting block;

[0019] 9. Bottom plate; 10. Slider; 11. Slide rail; 12. Bearing; 13. Roller;

[0020] 14. Bottom of the cavity of the first card slot; 15. Clamping plate of the first card slot; 16. Disc structure of the first piston rod;

[0021] 17. Bottom of the second card slot cavity; 18. Second card slot clamping plate; 19. Disk structure of the second piston rod;

[0022] 20. Pressure sensor. Detailed implementation mode

[0023] In order to describe the present utility model more clearly, the present utility model will be further described below with reference to the accompanying drawings.

[0024] In the following description, example details are given to provide a deeper understanding of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. It should be understood that the specific embodiments are only used to explain the present utility model and are not used to limit the present utility model.

[0025] It should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of the described features, wholes, steps, operations, elements or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components or combinations thereof.

[0026] Please refer to Figures 1 to 4 , a pushing device in a coating machine of the present utility model includes a vertical plate 1 and a roller 13. A bearing 12 is provided at the center of the vertical plate 1. Both ends of the roller 13 are connected to two vertical plates 1 through the bearing 12. First card slots 4 are provided on the sides of the two groups of vertical plates 1. One end of a first piston rod 3 is connected to the first card slot 4, and the other end of the first piston rod 3 is connected to a single-acting cylinder 2; a connecting block 8 is also provided on the same side of the vertical plate 1, and a second card slot 7 is fixed through the connecting block 8. One end of a second piston rod 6 is connected to the second card slot 7, and the other end of the second piston rod 6 is connected to a double-acting cylinder 5.

[0027] Only the tail end of the single-acting cylinder 2 can intake air and always maintains the intake state. Therefore, it acts as a propulsion cylinder in the present utility model. When the air pressure at the intake end of the single-acting cylinder 2 increases, the first piston rod 3 is pushed forward, pushing the first card slot 4 and driving the vertical plate 1 to move; both the front and rear ends of the double-acting cylinder 5 can intake and exhaust air. Therefore, it acts as a pulling-back cylinder in the present utility model. When the front end of the double-acting cylinder 5 intakes air and the rear end exhausts air, the second piston rod 6 is pulled back, pulling the second card slot 7 and driving the vertical plate 1 to move.

[0028] Please refer to Figure 4, Further, the pushing device of the present utility model not only needs to achieve the functions of pushing and pulling, but also needs to precisely control the pushing distance of the pushing device. In the present utility model, clamping plates 15 are provided at both ends of the opening of the first card slot 4. One end of the first piston rod 3 connected to the first card slot 4 is provided with a disc-shaped structure 16. A first gap is provided between the disc-shaped structure 16 and the bottom 14 of the cavity of the first card slot. A second gap is provided between the disc-shaped structure 16 and the clamping plate 15; the second card slot 7 has the same structure as the first card slot 4, and the second piston rod 6 has the same structure as the first piston rod 3.

[0029] When pushing the vertical plate 1, the air pressure at the air inlet end of the single-acting cylinder 2 increases from P A1 to P A2 . The front and rear sections of the double-acting cylinder 5 are both set to the exhaust state. The first piston rod 3 of the single-acting cylinder 2 pushes forward. The first piston rod 3 abuts against the bottom 14 of the cavity of the first card slot, thereby pushing the vertical plate 1 forward. When the vertical plate 1 moves forward, the clamping plate 18 of the second card slot on the vertical plate 1 abuts against the disc-shaped structure 19 of the second piston rod, thereby pulling the second piston rod 6 forward. When the single-acting cylinder 2 pushes the vertical plate 1 to the pushing position, the front section of the double-acting cylinder 5 is switched to the air release state, and the rear section is switched to the air inlet state, so that the disc-shaped structure 19 of the second piston rod disengages from the clamping plate 18 of the second card slot, and the second piston rod 6 does not touch the bottom 17 of the cavity of the second card slot, so that the second piston rod 6 is still located in the second card slot 7, but the second piston rod 6 has no contact with the second card slot 7, that is, it is not stressed. At this time, the vertical plate 1 reaches the predetermined pushing location, and only the first piston rod 3 of the single-acting cylinder 2 abuts against the bottom 14 of the cavity of the first card slot. In this process, by calculating the air pressure at the air inlet end of the single-acting cylinder 2, it is possible to accurately calculate how much air pressure needs to be injected into the single-acting cylinder for the target pushing distance, thereby achieving precise control of the pushing force of the pushing device.

[0030] Further, the pushing device of the present utility model also needs to achieve the pulling-back action. In the present utility model, when pulling back the vertical plate 1, the pressure at the air inlet end of the single-acting cylinder 2 decreases from P A2 to P A1 . The front section of the double-acting cylinder 5 is switched to the air inlet state, and the rear section is switched to the exhaust state. The working pulling force generated when the front section of the double-acting cylinder 5 intakes air needs to be greater than the air inlet end P of the single-acting cylinder A2The thrust generated in this state. At this time, the second piston rod 6 abuts against the clamping plate 18 of the second clamping groove, thereby pulling the vertical plate 1 back. Although the first piston rod 3 of the single-acting cylinder 2 is still in the extended state, due to the greater pulling force of the double-acting cylinder 5 on the second piston rod 6, the first piston rod 3 will also be forced to retract backward when the vertical plate is pulled back until the second piston rod 6 of the double-acting cylinder 5 is in the fully retracted state. At this time, the vertical plate 1 returns to its original position. If it is necessary to achieve pushing again, just repeat the above pushing operation.

[0031] Furthermore, in the present utility model, the single-acting cylinder 2 is set as a low-friction cylinder with an internal airbag structure. The low-friction cylinder has the characteristics of small piston sliding resistance and can accurately control the output force, so it can be a better choice for this solution.

[0032] Furthermore, in the present utility model, in order to monitor the thrust of the single-acting cylinder 2 in real time and adjust it in time, a pressure sensor 20 is provided at the bottom 14 of the cavity of the first clamping groove. When the vertical plate 1 is pushed, the pressure sensor 20 abuts against the first piston rod 3 to realize the timely feedback of the thrust.

[0033] Please refer to Figure 3 and Figure 4 , furthermore, in order to prevent the first piston rod 3 and the second piston rod 6 from simultaneously disengaging from the corresponding clamping grooves in the same direction, in the present utility model, the cavity of the first clamping groove 4 penetrates the first clamping groove 4 in a first straight line direction, and the cavity of the second clamping groove 7 penetrates the second clamping groove 7 in a second straight line direction. The first straight line and the second straight line are perpendicular to each other.

[0034] Furthermore, in the present utility model, two groups of sliders 10 are installed on the side of the bottom plate 9 away from the vertical plate 1. The two groups of sliders 10 are respectively connected to the two groups of slide rails 11, so that the vertical plate can slide on the slide rails 11 through the connection of the bottom plate 9 and the sliders 10.

[0035] Furthermore, without changing the thrust of the single-acting cylinder 2, the pushing distance of the roller 13 is adjusted in real time. In the present invention, a precision adjustment mechanism is also provided. The precision adjustment mechanism includes a servo motor, a ball screw, and an inclined block; a second bearing is installed on the side of the vertical plate 1 away from the first card slot 4. Half of the arc-shaped contact surface of the second bearing remains inside the vertical plate 1, and half protrudes from the vertical plate 1. The arc-shaped contact surface protruding from the vertical plate 1 abuts against the inclined block. The inclined block is sleeved on the ball screw. The ball screw is placed vertically on the ground, and the ball screw is connected to a servo motor; when the single-acting cylinder 2 pushes the vertical plate 1 to the target distance, the second bearing on the vertical plate 1 abuts against the inclined block. When it is necessary to finely adjust the pushing distance of the vertical plate 1 in real time, by driving the servo motor, the inclined block is adjusted to move linearly on the ball screw, changing the contact position between the inclined surface of the inclined block and the second bearing, thereby changing the pushing distance of the single-acting cylinder 2 on the vertical plate 1.

[0036] The advantages of the present invention are as follows: Through the coordinated operation of the single-acting cylinder, the first piston rod, the first card slot, the double-acting cylinder, the second piston rod, the first card slot, and the vertical plate, the present invention can not only push and pull back the vertical plate, but also accurately control the intake pressure of the single-acting cylinder, thereby accurately controlling the pushing force.

[0037] The above only discloses several specific embodiments of the present invention, but the present invention is not limited thereto. Any change that can be thought of by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A pushing device inside a coater, comprising a vertical plate and a roller. A bearing is provided at the center of the vertical plate. Both ends of the roller are connected to the two vertical plates through the bearing. It is characterized in that, On the sides of both of the two vertical plates, first clamping grooves are provided. One end of a first piston rod is connected to the first clamping groove, and the other end of the first piston rod is connected to a single-acting cylinder. On the side of the vertical plate where the first clamping groove is installed, a connecting block is further installed. On the side of the connecting block away from the vertical plate, a second clamping groove is fixed. One end of a second piston rod is connected to the second clamping groove, and the other end of the second piston rod is connected to a double-acting cylinder. Among them, at both ends of the opening of the first clamping groove, clamping plates are provided. One end of the first piston rod connected to the first clamping groove is set as a disc-shaped structure. A first gap is provided between the disc-shaped structure and the bottom of the cavity of the first clamping groove, and a second gap is provided between the disc-shaped structure and the clamping plate. The second clamping groove is in fit connection with the second piston rod.

2. The pushing device in the coater according to claim 1, characterized in that, The second clamping groove is set as the structure of the first clamping groove, and the second piston rod is set as the structure of the first piston rod.

3. The pushing device in the coater according to claim 2, characterized in that, A pressure sensor is provided at the bottom of the cavity of the first clamping groove.

4. The pushing device inside a coating machine according to claim 2, characterized in that, The cavity of the first clamping groove penetrates through the first clamping groove in a first linear direction, and the cavity of the second clamping groove penetrates through the second clamping groove in a second linear direction. The first line and the second line are perpendicular to each other.

5. The pushing device in the coater according to claim 1, characterized in that, It further includes a bottom plate. The bottom plate is fixed to the bottoms of the two groups of vertical plates. The side of the bottom plate is flush with the sides of the two groups of vertical plates where the connecting blocks are installed, and the side of the bottom plate is fixedly connected through the connecting blocks on the sides of the vertical plates.

6. The pushing device in a coater according to claim 5, wherein, On the side of the bottom plate away from the vertical plates, two groups of sliders are installed. The two groups of sliders are respectively in sliding connection with two groups of slide rails.

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