CN215973697U

CN215973697U - Stepping carrying righting mechanism

Info

Publication number: CN215973697U
Application number: CN202121859273.3U
Authority: CN
Inventors: 邱俊; 赵江涛; 吴应全; 周勇; 杨桂林
Original assignee: Tcl King Electrical Appliance Chengdu Co ltd
Current assignee: Tcl King Electrical Appliance Chengdu Co ltd
Priority date: 2021-08-10
Filing date: 2021-08-10
Publication date: 2022-03-08
Anticipated expiration: 2031-08-10

Abstract

The utility model relates to a stepping carrying righting mechanism, which comprises two parallel conveying frames, wherein the conveying frames are provided with rollers; a plurality of righting units are arranged between the two conveying frames along the conveying direction; the righting unit comprises an accelerating mechanism formed by a displacement block, an air cylinder and a grabbing block, wherein the displacement block is arranged at the output end of the air cylinder, and the grabbing block can be rotationally arranged on the displacement block in a vertical plane; the grabbing block is in a horizontal state when the display screen passes by, and the display screen passes through the grabbing block; after the display screen passes through completely, the grabbing block is in a vertical state, and the cylinder is pulled to accelerate the displacement after the grabbing block is scratched on the edge of the display screen. The righting unit also comprises a speed reducing mechanism. The utility model achieves the following beneficial effects: the speed-up and speed-down device can accelerate and decelerate, improve the production efficiency, and has simple structure and stable operation.

Description

Stepping carrying righting mechanism

Technical Field

The utility model relates to a carry position normal position technical field, especially a step-by-step delivery normal position mechanism.

Background

In the process of display screen production, the display screen is conveyed to different working procedure positions through a conveying frame structure, and the assembly processing is completed step by step. The common way is to arrange rollers on two parallel frames, which are driven by corresponding motors to bring the display screen forward.

While ordinary carriages enable transport, the location is not necessarily accurate; that is, at a certain time, the display screen may be advanced or delayed to the correct position, and the robot arm may not be able to grasp the display screen at the correct position when grasping the automatic production.

Now, in order to avoid the above situation, it is common practice to arrange a resisting mechanism at the grabbing position of the mechanical arm, and the display screen moves to the position and is blocked by the resisting mechanism, at this time, the whole conveying frame structure stops operating; after the mechanical arm grabs the display screen, the whole conveying frame structure continues to work; the carriage structure can not keep continuously carrying, influences production efficiency.

In other words, the display screens on a common conveyor frame structure are not spaced; if the distance between the display screens is too large, after the grabbing action of the mechanical arm is completed, the next display screen needs to be waited for to arrive, and time is wasted; if the distance between the display screens is too small, the next display screen reaches the back, the robot arm needs to wait for the completion of the previous grabbing action, and then the robot arm can further grab the next display screen, so that the time is wasted.

Therefore, a further carrying righting mechanism is designed, the carrying righting mechanism has the functions of acceleration and deceleration, the distance between the display screens is kept consistent, the time for the grabbing action of the mechanical arm is kept consistent with the time for moving the first display screen to the grabbing position, waiting is not needed, and therefore production efficiency is improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide the stepping carrying righting mechanism which can accelerate and decelerate, improves the production efficiency, has a simple structure and runs stably.

The purpose of the utility model is realized by the following technical scheme: a stepping carrying righting mechanism comprises two parallel conveying frames, wherein rollers are arranged on the conveying frames;

a plurality of righting units are arranged between the two conveying frames along the conveying direction;

the righting unit comprises an accelerating mechanism formed by a displacement block, an air cylinder and a grabbing block, wherein the displacement block is arranged at the output end of the air cylinder, and the grabbing block can be rotationally arranged on the displacement block in a vertical plane;

the grabbing block is in a horizontal state when the display screen passes by, and the display screen passes through the grabbing block; after the display screen passes through completely, the grabbing block is in a vertical state, and the cylinder is pulled to accelerate the displacement after the grabbing block is scratched on the edge of the display screen.

Furthermore, the grabbing block is arranged on an ear plate through a rotating pin, and the ear plate is fixed on the front side surface of the displacement block; a torsion spring is arranged between the rotating pin and the lug plate; the front side surface of the displacement block is also fixed with a mandril; the grabbing block rotates along with the rotating pin under the action of the torsion spring; when the grabbing block rotates to the vertical position, the lower part of the grabbing block is propped by the ejector rod and is kept in the vertical state; when the display screen passes through the grabbing block, the grabbing block is pressed down to be in a horizontal state.

Furthermore, the grabbing block is in a right-angle trapezoid block shape, the inclined edge surface of the grabbing block is in contact with the display screen when the grabbing block is in a horizontal state, and the long bottom edge surface of the grabbing block is in contact with the upper surface of the displacement block; the upper surface of the displacement block is provided with an inclined plane matched with the long bottom edge surface of the grabbing block.

Preferably, the left and right positions of the front side surface of the displacement block are respectively provided with a grabbing block. When grabbing, there are two stress points, and the stress is even.

Preferably, the displacement block is T-shaped when viewed in the vertical direction of the front side surface and is T-shaped when viewed in the top direction of the output direction, that is, a structure with a large middle volume and small left and right volumes is formed, so that the center of gravity is concentrated at the middle position, and the output end of the cylinder is connected to the middle position.

Furthermore, two sliding rods are arranged between the two conveying frames and are arranged with the displacement block in a sliding manner;

the air cylinder is horizontally arranged along the conveying direction, a long plate is fixed at the bottom of the air cylinder, the long plate is fixed on the mounting table through screws, and the mounting table is fixed on the ground.

Further, the device also comprises a plurality of laser sensors for detecting the position of the display screen, wherein the laser sensors are electrically connected with the corresponding air cylinders; when the lag of the display screen position is detected, the cylinder acts.

Furthermore, the righting unit is also provided with a speed reducing mechanism formed by a lifting pile, the speed reducing mechanism is positioned between the two conveying frames, and the lifting pile is electrically connected with the laser sensor; when the laser sensor detects that the position of the display screen is advanced, the lifting pile is lifted to resist.

Preferably, the two sides of the conveying frame are also provided with side baffles for preventing the display screen from falling.

The utility model has the following advantages:

(1) the display screens are always in the correct positions through the accelerating mechanism and the decelerating mechanism, the distance between the display screens on the conveying frame is constant, the distance moving time is adjusted to be consistent with the action of the mechanical arm, so that the conveying frame does not need to wait for the mechanical arm in the conveying process, the mechanical arm does not need to obtain the movement of the conveying frame, and the display screens are moved to the positions to be grabbed after the action of the mechanical arm is finished, so that the working efficiency is improved;

(2) in the accelerating mechanism, a torsion spring, a push rod and a displacement block are structurally arranged, the rotation of the grabbing block is realized through the torsion spring, and the limit of the grabbing block in the vertical direction and the horizontal direction is realized through the push rod and the displacement block; when no external force acts, the grabbing block is in a vertical state; when the display screen passes by, the grabbing block is in a horizontal and flat state, so that the display screen can pass by conveniently; when the display screen passes through the grabbing block, the grabbing block is in a vertical state, and under the driving of the air cylinder, force can be applied to the display screen to drive the display screen to rapidly move;

(3) the arrangement of the speed reducing mechanism can resist the speed reduction of the display screen and realize the speed reduction and the position correction; the display screen can be pulled to the position of the speed reducing mechanism by the accelerating mechanism and is resisted by the speed reducing mechanism, so that the display screen is beneficial to being grabbed by a mechanical arm;

(4) the displacement block is arranged in a T-shaped structure and a slide rod, and can move along the conveying direction stably.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural diagram of the grabbing block in the righting unit in a vertical state;

FIG. 3 is an enlarged view of a portion of FIG. 2;

FIG. 4 is a schematic structural diagram of a capture block in a horizontal state in a normal position unit;

FIG. 5 is an enlarged view of a portion of FIG. 4;

FIG. 6 is a schematic view of the vertical state to the horizontal state between the gripping block and the displacement block;

FIG. 7 is a schematic structural diagram of the arrangement of the grabbing block on the displacement block;

in the figure: the method comprises the following steps of 1-a conveying frame, 2-rollers, 3-a righting unit, 4-a displacement block, 401-an inclined plane, 5-an air cylinder, 6-a grabbing block, 7-a rotating pin, 8-an ear plate, 9-an ejector rod, 10-a sliding rod, 11-a lifting pile and 12-a side baffle.

Detailed Description

The utility model will be further described with reference to the accompanying drawings, but the scope of the utility model is not limited to the following.

As shown in fig. 1 to 7, a stepping carrying righting mechanism comprises two parallel conveying frames 1, wherein rollers 2 are arranged on the conveying frames 1; the display screen is placed on the placing block, and the placing block is placed on the roller 2; a side guard 12 is also provided on the outside of the carriage 1. In this embodiment, a plurality of aligning units 3 are provided between the two carriages 1 in the conveying direction.

Specifically, the text unit 3 includes an acceleration mechanism and a deceleration mechanism, and a laser sensor is disposed on the side barrier 12 and used for detecting the position of the display screen. When the position of the display screen lags, the acceleration mechanism drives the display screen to move forward by a distance; when the position of the display screen is advanced, the speed reducing mechanism resists the display screen for a period of time until the display screen is at a proper position, so that each display screen is ensured to be at a correct position.

The accelerating mechanism comprises a displacement block 4, a cylinder 5 and a grabbing block 6; the cylinder 5 is arranged along the output direction, and the output end of the cylinder 5 is connected with the displacement block 4. A grabbing block 6 is arranged on the front side surface of the displacement block 4 through an ear plate 8 and a rotating pin 7, and the grabbing block 6 is arranged; the middle part of the rotating pin 7 is in a polygon prism shape, the two ends of the rotating pin are in a cylinder shape, the polygon prism part of the rotating pin 7 is matched with the grabbing block 6, and when the rotating pin 7 rotates, the grabbing block 6 is driven to rotate.

A torsion spring is arranged between the rotating pin 7 and the ear plate 8, and the grabbing block 6 can rotate along with the rotating pin 7 under the action of the torsion spring. The front side surface of the displacement block 4 is also provided with a top column 9, and when the grabbing block 6 rotates to the vertical position, the top column 9 is propped against the displacement block, so that the vertical state is kept; when the grabbing block 6 is pressed down by force, it is pressed against the upper surface of the displacement block 4, so that a horizontal state is formed.

As shown in fig. 6, when there is no display screen at the grabbing block 6, under the action of the torsion spring, it is in a vertical state; when the display screen passes by the grabbing block 6, the grabbing block 6 can be pressed down, and after the display screen passes by the grabbing block 6, the grabbing block 6 is vertically reset. Snatch 6 vertical backs that reset of piece, when cylinder 5 drives through displacement piece 4 and snatchs 6 actions, snatch 6 pieces of scratching and scratch on the display screen, can drive the display screen and move forward together.

In this embodiment, the grabbing block 6 is in a right trapezoid block shape, and when the grabbing block is in a horizontal state, the inclined edge surface contacts with the display screen, and the long bottom edge surface contacts with the upper surface of the displacement block 4; the upper surface of the displacement block 4 is provided with an inclined plane 401 matched with the long bottom side surface of the grabbing block 6.

In this embodiment, the left and right positions of the front side surface of the displacement block 4 are provided with a gripping block 6. When grabbing, there are two stress points, and the stress is even.

In this embodiment, the displacement block 4 is T-shaped when viewed in the vertical direction of the front side and also T-shaped when viewed in the top direction of the output direction, i.e., a structure with a large middle volume and small left and right sides is formed, so that the center of gravity is concentrated at the middle position, and the output end of the cylinder 5 is connected to the middle position.

In order to ensure that the displacement block 4 can smoothly and well move along the conveying direction, two sliding rods 10 are further arranged between the two conveying frames 1, and the sliding rods 10 and the displacement block 4 are arranged in a sliding mode.

For the air cylinder 5, the air cylinder is horizontally arranged along the conveying direction, a long plate is fixed at the bottom of the air cylinder, the long plate is fixed on an installation table through screws, and the installation table is fixed on the ground.

For the speed reducing mechanism, the speed reducing mechanism comprises two lifting piles 11, the two lifting piles are positioned at two sides of the speed reducing mechanism, and the lifting piles 11 are electrically connected with the laser sensor; when the laser sensor detects that the position of the display screen is advanced, the lifting pile 11 is lifted to resist.

The above examples only represent preferred embodiments, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims

1. The utility model provides a step-by-step delivery normal position mechanism which characterized in that:

comprises two parallel conveying frames (1), wherein the conveying frames (1) are provided with rollers (2);

a plurality of righting units (3) are arranged between the two conveying frames (1) along the conveying direction;

the righting unit (3) comprises an accelerating mechanism formed by a displacement block (4), an air cylinder (5) and a grabbing block (6), wherein the displacement block (4) is arranged at the output end of the air cylinder (5), and the grabbing block (6) can be rotationally arranged on the displacement block (4) in a vertical plane;

the grabbing block (6) is in a horizontal state when the display screen passes by, and the display screen passes through the grabbing block; after the display screen passes through completely, the grabbing block (6) is in a vertical state, and the cylinder (5) is pulled to accelerate displacement after the edge of the display screen is scratched through the grabbing block (6).

2. A step delivery righting mechanism as set forth in claim 1, wherein: the grabbing block (6) is arranged on the lug plate (8) through the rotating pin (7), and the lug plate (8) is fixed on the front side surface of the displacement block (4);

a torsion spring is arranged between the rotating pin (7) and the lug plate (8); a top rod (9) is also fixed on the front side surface of the displacement block (4);

the grabbing block (6) rotates along with the rotating pin (7) under the action of the torsion spring; when the grabbing block (6) rotates to the vertical position, the lower part of the grabbing block (6) is propped by the ejector rod (9) to keep the vertical state; when the display screen passes through the grabbing block (6), the grabbing block (6) is pressed down to be in a horizontal state.

3. A step delivery righting mechanism as set forth in claim 2, wherein: the grabbing block (6) is in a right-angle trapezoid block shape, the inclined edge surface of the grabbing block is in contact with the display screen when the grabbing block is in a horizontal state, and the long bottom edge surface of the grabbing block is in contact with the upper surface of the displacement block (4);

the upper surface of the displacement block (4) is provided with an inclined plane (401) matched with the long bottom side surface of the grabbing block (6).

4. A step delivery righting mechanism as set forth in claim 3, wherein: the left and right positions of the front side surface of the displacement block (4) are respectively provided with a grabbing block (6).

5. A step carrying righting mechanism as set forth in claim 4, wherein: the displacement block (4) is T-shaped when being seen along the vertical direction of the front side face and is also T-shaped when being seen along the overlooking of the output direction, namely a structure with large middle volume and small left and right side volumes is formed, the center of gravity is concentrated at the middle position, and the output end of the air cylinder (5) is connected at the middle position.

6. A step delivery righting mechanism as set forth in claim 5, wherein: two sliding rods (10) are further arranged between the two conveying frames (1), and the sliding rods (10) and the displacement block (4) are arranged in a sliding mode;

the air cylinder (5) is horizontally arranged along the conveying direction, a long plate is fixed at the bottom of the air cylinder, the long plate is fixed on an installation platform through screws, and the installation platform is fixed on the ground.

7. The stepping carrying righting mechanism as claimed in any one of claims 1-6, wherein: the device also comprises a plurality of laser sensors for detecting the position of the display screen, and the laser sensors are electrically connected with the corresponding air cylinders (5); when the screen position lag is detected, the cylinder (5) is actuated.

8. A step delivery righting mechanism as set forth in claim 7, wherein: the righting unit (3) is also provided with a speed reducing mechanism formed by a lifting pile (11), the speed reducing mechanism is positioned between the two conveying frames (1), and the lifting pile (11) is electrically connected with the laser sensor;

when the laser sensor detects that the position of the display screen is advanced, the lifting pile (11) is lifted to resist.

9. A step carrier righting mechanism as set forth in claim 8, wherein: and side baffles (12) for preventing the display screen from falling are arranged on two sides of the conveying frame (1).