Rotary cart device for transition section of plate conveyor and control method of rotary cart device

Abstract

The invention discloses a plate conveyor transition section rotary cart device and a control method thereof. The plate conveyor transition section rotary cart device comprises a rotary cart mechanism, a set of correlation sensors and a controller. The rotary cart mechanism comprises a fixed bottom plate, a rotary air cylinder, a connecting plate, a reinforcing vertical plate, a push rod and an adjusting plate. When the automobile approaches the transition section of the plate conveyor, a group of correlation sensors are utilized to recognize the approaching of the automobile by being shielded by automobile tires, and timing is started. When the internal set time is up, the plate conveyor transition section rotary cart device rotates the push rod through air source power to make the push rod make contact with automobile tires, the tires are prevented from slipping and idling, and therefore an automobile can smoothly pass through the plate conveyor transition section.

Description

Technical Field

[0001] The invention relates to a rotating trolley device for a transition section of a plate conveyor and a control method thereof, and belongs to the technical field of plate conveyor design for automobile production lines. Background Art

[0002] As a continuous conveyor, plate conveyors are often used in workstations after the chassis and tires are assembled on the chassis line, such as exterior assembly lines, completion adjustment lines, rain lines, and final inspection lines. With the rapid development of the automobile industry, automobile assembly processes are becoming increasingly complex, resulting in more assembly stations. This requires the length of the plate conveyor to be increased. However, due to technical limitations, plate conveyors are more prone to failures if they are too long, or due to certain special station requirements such as fire protection at the gasoline filling station, the entire plate conveyor needs to be disconnected, and a transition section is set in the middle to run with the main line. In recent years, the number of new energy vehicle models has gradually increased. When passing through the transition section, because the vehicle has no mechanical braking mechanism, it often gets stuck here and cannot pass smoothly. At this time, a rotating cart device for the transition section of the plate conveyor is needed. Summary of the invention

[0003] The object of the present invention is to provide a rotating trolley device for a transition section of a plate conveyor and a control method thereof. When a car approaches the transition section of a plate conveyor, a group of through-beam sensors are used to identify the approach of the car by being blocked by the car tires, and start timing. When the internal set time is reached, the rotating trolley device for the transition section of the plate conveyor will rotate the push rod through the air source power to make it contact with the car tire, thereby preventing the tire from slipping and idling, so that the car can smoothly pass through the transition section of the plate conveyor.

[0004] The objective of the present invention is achieved through the following technical solutions:

[0005] As a first aspect of the present invention, a rotating trolley device for a transition section of a plate conveyor is provided, comprising a rotating trolley mechanism, a group of through-beam sensors and a controller; the rotating trolley mechanism comprises a fixed base plate, a rotating cylinder, a connecting plate, a reinforcing vertical plate, a push rod and an adjustment plate; the fixed base plate is fixed on the ground; the rotating cylinder is mounted on the fixed base plate by bolts; the connecting plate, the adjustment plate and the rotating parts of the rotating cylinder are connected in sequence; the push rod is welded on the connecting plate; a pair of through-beam sensors are used to detect whether a car tire has reached a specified position; the controller is simultaneously connected to the rotating cylinder and the through-beam sensor for communication, and is used to obtain the position of the car tire and control the rotation of the rotating cylinder.

[0006] Furthermore, four reinforcing vertical plates are welded between the push rod and the connecting plate.

[0007] Furthermore, the rotary cylinder is equipped with a start sensor and an in-position detection sensor.

[0008] Furthermore, the rotary cylinder controls the flow rate of compressed air through a throttle valve, thereby controlling the rotation speed of the rotary cylinder.

[0009] Furthermore, the push rod is made by bending a whole round steel bar, the position where the push rod contacts the tire is cut into a plane, and the position where the push rod contacts the tire is blunted.

[0010] As a second aspect of the present invention, a control method for a rotating trolley device in a transition section of a plate conveyor is also provided, comprising:

[0011] S1. Confirm the flow rate of the rotating cylinder compression cylinder;

[0012] S2. When the front tire of the car reaches the designated position, the rotating cylinder is started to make the push rod contact the front tire of the car, and the friction force is used to prevent the front tire from idling. The front tire of the car passes through the transition section along the conveyor line;

[0013] S3. The push rod is separated from the front tire of the car, and the rotating cylinder rotates back to the starting position;

[0014] S4. The rear tires of the vehicle reach the designated position, and steps S2 and S3 are repeated to allow the rear tires to pass through the transition section.

[0015] Furthermore, the step S2 comprises:

[0016] The plate conveyor starts, and when the front tire of the car triggers the shooting sensor, the timing starts in the controller; when the front tire of the car reaches the transition section, the timing ends, and the controller feeds back to the built-in starting sensor of the rotating cylinder, and the rotating cylinder starts to rotate; the rotating cylinder drives the push rod to rotate through the rotating parts, so that the push rod contacts the front tire of the car, and the friction force is used to prevent the front tire from idling; at this time, the rear tire is still on the plate conveyor and continues to move forward along the conveyor line, and the push rod also continues to rotate along with the front tire of the car and keeps in contact with it, and the front tire of the car passes through the transition section along the conveyor line.

[0017] Furthermore, the step S3 comprises:

[0018] When the car moves forward a certain distance, the push rod rotates to a disengagement angle from the front tire of the car. Since there is no tire blocking it, the push rod will continue to rotate rapidly until the in-position detection switch is triggered inside the rotating cylinder. At this time, the rotating cylinder starts to rotate back, driving the push rod to quickly return to the starting position.

[0019] Compared with the previous motor drive, the present invention provides power through compressed air to reduce energy consumption; compared with the connection methods such as gears or couplings, the simple bolt connection makes installation and maintenance simpler. The overall structure is relatively simpler, which not only reduces costs, but also greatly reduces the failure rate of equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of a rotating trolley device for a transition section of a plate conveyor according to an embodiment of the present invention;

[0021] Figure 2 It is a front view of a rotating trolley device for a transition section of a plate conveyor according to an embodiment of the present invention;

[0022] Figure 3 A side view of a rotating trolley device for a transition section of a plate conveyor according to an embodiment of the present invention;

[0023] Figure 4 A top view of a rotating trolley device for a transition section of a plate conveyor according to an embodiment of the present invention;

[0024] In the figure:

[0025] 1-Fixed base plate; 2-Fixed bolt; 3-Rotary cylinder; 4-Connecting plate; 5-Reinforcement vertical plate; 6-Push rod; 7-Adjustment plate; 8-Connecting bolt; 9-Cylinder connecting bolt. DETAILED DESCRIPTION

[0026] The present invention is further described below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are exemplary and are only used to explain the present invention, and are not used to limit the present invention.

[0027] Example 1

[0028] like Figures 1 to 4 As shown, this embodiment is a rotating cart device for the transition section of a plate conveyor, comprising a rotating cart mechanism, a group of through-beam sensors and a controller; the rotating cart mechanism comprises a fixed base plate 1, a fixed bolt 2, a rotating cylinder 3, a connecting plate 4, a reinforced vertical plate 5, a push rod 6, an adjustment plate 7, an adjustment plate connecting bolt 8 and a cylinder connecting bolt 9. The fixed base plate 1 is fixed to the ground by the fixed bolt 2; the rotating cylinder 3 is mounted on the fixed base plate 1 by the cylinder connecting bolt 9; the connecting plate 4, the adjusting plate 7 and the rotating parts of the rotating cylinder are connected together in sequence by the adjusting plate connecting bolt 8; the push rod 6 is welded to the connecting plate 4 and rotates together with the connecting plate 4, four reinforced vertical plates 5 are welded between the push rod 6 and the connecting plate 4, and the connection between the push rod 6 and the connecting plate 4 is reinforced by the four reinforced vertical plates; the through-beam sensor is used to detect whether the automobile tire has reached the specified position; the controller is simultaneously connected to the rotating cylinder 3 and the through-beam sensor for communication, and is used to obtain the position of the automobile tire and control the rotation of the rotating cylinder 3.

[0029] The connection form between the fixed bottom plate 1 and the ground needs to be determined according to the specific situation. Usually, this position is the middle cover plate of the plate conveyor, so ordinary bolts are used for connection. If it is a concrete floor, expansion bolts are required.

[0030] The rotary cylinder 3 needs to be selected and confirmed according to the actual air source power and spatial position on site. It has a built-in start sensor and an in-place detection sensor, and controls the compressed air flow rate through a throttle valve, thereby controlling the rotation speed of the rotary cylinder.

[0031] The adjusting plate 7 plays the role of intermediate connection and makes the push rod height adjustable. This position can be adjusted according to the actual debugging situation on site by adding or reducing the pad to adjust the push rod height so as to adjust the actual contact position between the push rod and the tire.

[0032] The connecting plate 4 is used to extend the force-supporting position of the push rod 6 to make it more stable, and to connect the push rod with the rotating part of the rotary cylinder so that they can rotate together.

[0033] The push rod 6 is made of a whole round steel and cut into a plane at the contact position with the tire to increase the friction force, so that it can better prevent the tire from spinning. At the same time, the contact position with the tire is blunted to prevent scratching the tire.

[0034] The reinforcing vertical plate is welded together with the push rod and the connecting plate to play a reinforcing and supporting role.

[0035] Usually, if a transition section is set, this device is required for entering and exiting the transition section. The function of the rotating trolley device in the transition section of the plate conveyor is the same for the front and rear tires of the car, so only one set of this device is required at the same location.

[0036] The working principle of the plate conveyor transition section rotating cart device described in this embodiment is:

[0037] First, the compressed air needs to be adjusted to a suitable pressure to test whether the direction of the air source connection is correct. After confirmation, the compressed air flow rate is adjusted through the throttle valve to adjust the rotation speed of the push rod 6 to a suitable range.

[0038] After the plate conveyor is started, the car will gradually approach the transition section. When the front tire of the car triggers the shooting sensor, the system starts timing. When the front tire of the car reaches the transition section, the timing ends, and the system feeds back to the built-in start sensor of the rotating cylinder 3, and the rotating cylinder 3 starts to rotate. At this time, the rotating cylinder 3 drives the adjustment plate 7, the connecting plate 4, the reinforcement plate 5 and the push rod 6 to rotate rapidly as a whole through the rotating parts, so that the push rod 6 contacts the front tire of the car and prevents the front tire from idling through friction. At this time, the rear tire is still on the plate conveyor and continues to move forward with the conveyor line, and the push rod 6 also continues to rotate with the front tire of the car and keeps in contact with it, so the front tire of the car can smoothly pass this transition position with the conveyor line.

[0039] When the car moves forward a certain distance, the push rod 6 rotates to the angle of disengagement from the front tire of the car. Since there is no tire blocking, the push rod 6 will continue to rotate rapidly until the in-position detection switch is triggered inside the rotating cylinder 3. At this time, the rotating cylinder 3 starts to rotate back, thereby driving the push rod 6 to quickly return to the starting position.

[0040] When the rear tire moves forward to trigger the opposing beam sensor, the above-mentioned action is repeated again, so that the rear tire passes through this transition position smoothly, thereby allowing the car to pass smoothly.

[0041] Example 2

[0042] This embodiment is a control method for a rotating trolley device in a transition section of a plate conveyor as described in Embodiment 1, comprising:

[0043] S1. Confirm the flow rate of the rotating cylinder and the compression cylinder.

[0044] Adjust the compressed air to a suitable pressure to test whether the direction of the air source connection is correct; then adjust the flow rate of the compressed air through the throttle valve to adjust the rotation speed of the push rod 6 to a suitable range.

[0045] S2. When the front tire of the car reaches the specified position, the rotating cylinder is started to make the push rod 6 contact with the front tire of the car, and the friction force is used to prevent the front tire from idling. The front tire of the car passes through the transition section along the conveyor line.

[0046] The plate conveyor starts, and when the front tire of the car triggers the shooting sensor, the timing starts in the controller; when the front tire of the car reaches the transition section, the timing ends, and the controller feeds back to the built-in starting sensor of the rotating cylinder 3, and the rotating cylinder 3 starts to rotate; at this time, the rotating cylinder 3 drives the adjustment plate 7, the connecting plate 4, the reinforcing vertical plate 5 and the push rod 6 to rotate rapidly as a whole through the rotating parts, so that the push rod 6 contacts the front tire of the car and prevents the front tire from idling through friction; at this time, the rear tire is still on the plate conveyor and continues to move forward with the conveyor line, and the push rod 6 also continues to rotate with the front tire of the car and keeps in contact with it, so the front tire of the car can smoothly pass through this transition position with the conveyor line.

[0047] S3. The push rod is separated from the front tire of the car, and the rotating cylinder returns to the starting position.

[0048] When the car moves forward a certain distance, the push rod 6 rotates to a disengagement angle from the front tire of the car. Since there is no tire blocking it, the push rod 6 will continue to rotate rapidly until the in-position detection switch inside the rotating cylinder 3 is triggered; at this time, the rotating cylinder 3 starts to rotate back, thereby driving the push rod 6 to quickly return to the starting position.

[0049] S4. The rear tires of the vehicle reach the designated position, and steps S2 and S3 are repeated to allow the rear tires to pass through the transition section.

[0050] When the rear tire moves forward to trigger the opposing beam sensor, the above-mentioned action is repeated again, so that the rear tire passes through this transition position smoothly, thereby allowing the car to pass smoothly.

[0051] The above describes in detail the structure, features and effects of the present invention based on the embodiments shown in the drawings. The above is only a preferred embodiment of the present invention, but the present invention is not limited to the scope of implementation shown in the drawings. Any changes made in accordance with the concept of the present invention, or modifications to equivalent embodiments with equivalent changes, which do not exceed the spirit covered by the description and drawings, should be within the protection scope of the present invention.

Claims

1. A rotating trolley device for the transition section of a plate conveyor, characterized in that: It includes a rotating cart mechanism, a group of through-beam sensors and a controller; the rotating cart mechanism includes a fixed base plate, a rotating cylinder, a connecting plate, a reinforcing vertical plate, a push rod and an adjustment plate; the fixed base plate is fixed to the ground; the rotating cylinder is mounted on the fixed base plate by bolts; the connecting plate, the adjustment plate and the rotating parts of the rotating cylinder are connected in sequence; the push rod is welded to the connecting plate; a pair of through-beam sensors are used to detect whether the car tires have reached the specified position; the controller is simultaneously connected to the rotating cylinder and the through-beam sensors for obtaining the position of the car tires and controlling the rotation of the rotating cylinder.

2. A plate conveyor transition section rotating trolley device according to claim 1, characterized in that: Four reinforcement vertical plates are welded between the push rod and the connecting plate.

3. A plate conveyor transition section rotating trolley device according to claim 1, characterized in that: The rotary cylinder is equipped with a start sensor and an in-position detection sensor.

4. A plate conveyor transition section rotating trolley device according to claim 1, characterized in that: The rotary cylinder controls the flow rate of compressed air through a throttle valve, thereby controlling the rotation speed of the rotary cylinder.

5. A plate conveyor transition section rotating trolley device as claimed in claim 1, characterized in that: The push rod is made by bending a whole round steel bar, and the contact position with the tire is cut into a plane, and the contact position with the tire is blunted.

6. A control method for a plate conveyor transition section rotating trolley device according to any one of claims 1 to 5, characterized in that: include: S1. Confirm the flow rate of the rotating cylinder compression cylinder; S2. When the front tire reaches the designated position, the rotating cylinder is activated, causing the push rod to contact the front tire. Friction prevents the front tire from spinning, and the front tire passes through the transition section along the conveyor line. S3. The push rod disengages from the front tire of the car, and the rotating cylinder returns to its starting position; S4. When the rear tires of the vehicle reach the designated position, repeat steps S2 and S3 to allow the rear tires to pass through the transition section.

7. A control method for a plate conveyor transition section rotating trolley device according to claim 6, characterized in that: The step S2 comprises: The plate conveyor starts, and when the front tire of the car triggers the shooting sensor, the controller starts timing; when the front tire of the car reaches the transition section position, the timing ends, and the controller feeds back to the starting sensor built into the rotating cylinder, and the rotating cylinder starts to rotate; the rotating cylinder drives the push rod to rotate through the rotating component, so that the push rod contacts the front tire of the car, and the friction force prevents the front tire from idling; at this time, the rear tire continues to move forward along the conveyor line on the plate conveyor, and the push rod also continues to rotate along with the front tire of the car, and keeps in contact with it, and the front tire of the car passes through the transition section along the conveyor line.

8. A control method for a plate conveyor transition section rotating trolley device according to claim 6, characterized in that: The step S3 comprises: When the car moves forward a certain distance, the push rod rotates to a disengagement angle from the car's front tire. Since there is no tire blocking it, the push rod will continue to rotate rapidly until the in-position detection switch is triggered inside the rotating cylinder; at this time, the rotating cylinder starts to rotate back, driving the push rod to quickly return to the starting position.

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