CN102074492A - Bidirectional intermittent transmission mechanism - Google Patents

Abstract

The invention discloses a bidirectional intermittent transmission mechanism, comprising: the device comprises a supporting seat, a base, a lifting mechanism, a horizontal moving mechanism and a lifting driving mechanism, wherein the supporting seat is used for bearing a substrate to be heated; the upper surface of the base is provided with at least two fixing seats which are parallel to each other; the lifting mechanism comprises a lifting support, a round wheel, a roller and a roller fixing plate; the horizontal moving mechanism is fixedly connected with the supporting seat and drives the supporting seat to horizontally reciprocate on the roller; the lifting driving mechanism comprises a rotating shaft, a rotating shaft motor and an eccentric wheel. The bidirectional intermittent transmission mechanism has high automation degree, can greatly reduce the labor intensity, improve the production efficiency and reduce the production cost.

Description

Two-way intermittent transmission mechanism

technical field

The invention relates to a conveying mechanism, in particular to a bidirectional intermittent conveying mechanism for conveying substrates of organic light-emitting display devices before and after heating.

Background technique

With the continuous advancement of science and technology, people's requirements for the use of digital products continue to increase, especially the display screens of digital products. OLED display is a new product in digital products, OLED is Organic Light-Emitting Diode (Organic Light-Emitting Diode), also known as Organic Electroluminescence Display (OELD), OLED is a low-voltage, low-power Electroluminescent devices with high brightness, high light efficiency, wide vision, full curing, full color display, light weight and low price are becoming the hot spot of display device research in the world today, so they have great market potential.

At present, before the production of organic light-emitting display devices, it is necessary to heat the substrate loaded with organic light-emitting display diodes, and the existing substrates for organic light-emitting diodes are usually heated and transported by heating devices, conveyor chains and grabbing mechanisms. To execute, the execution process is as follows: first, the conveyor chain takes over the substrate transported by the previous process, and transports the substrate to the heating device; then, the substrate is grasped by the grabbing mechanism to the heating device, and then the heating device holds the substrate Heating is performed until the substrate is heated to meet process criteria. Finally, the grabbing mechanism places the substrate on the conveyor chain to transport the heated sheet to the next process to perform corresponding operations.

In the above processing process, since the heating device and the conveying chain are not continuous, it is necessary to control the grasping mechanism to adjust the position of the substrate in the middle, and some production lines even use manual operation to move the substrate to the heating device for heating. The low degree of automation of the production line directly leads to the shortcomings of high labor intensity, low production efficiency and high production cost.

Therefore, there is a need for a two-way intermittent transmission mechanism with a high degree of automation, which can greatly reduce labor intensity, improve production efficiency, and reduce production costs.

Contents of the invention

The object of the present invention is to provide a two-way intermittent transmission mechanism with high degree of automation, which can greatly reduce labor intensity, improve production efficiency and reduce production cost.

In order to achieve the above object, the present invention provides a two-way intermittent transmission mechanism, which is suitable for transporting the substrate of an organic light-emitting display device before and after heating, including: a supporting seat, a base, a lifting mechanism, a horizontal moving mechanism and a lifting driving mechanism; The supporting base is used to carry the substrate to be heated; the base and the supporting base are parallel to each other, the lower surface of the base is in a horizontal structure, and at least two mutual Parallel fixed seats; the lifting mechanism includes lifting pillars, round wheels, rollers and roller fixing plates, the upper end of the lifting pillars is connected with the roller fixing plates, and the rollers are pivotally connected to the roller fixing plates. The supporting seat is carried on the roller, and the lower end of the lifting column slides through the fixed seat and is pivotally connected with the round wheel; the horizontal moving mechanism is fixedly connected with the supporting seat, and the horizontal moving mechanism Drive the supporting seat to do horizontal reciprocating motion on the roller; the lifting drive mechanism includes a rotating shaft, a rotating shaft motor and an eccentric wheel, the rotating shaft motor is fixed on the base, and the rotating shaft is pivotally connected to the On the base and connected with the output shaft of the rotating shaft motor, the eccentric wheel is fixed on the rotating shaft and the wheel surface of the eccentric wheel is in tangential contact with the wheel surface of the circular wheel, and the rotating shaft motor passes through the The eccentric wheel drives the supporting seat and the horizontal moving mechanism to perform vertical lifting movement synchronously.

Preferably, the roller fixing plate is provided with a through groove, and the roller is pivotally connected in the through groove. By providing the through groove, the roller can be accommodated therein, and the structure is simple and compact.

Preferably, the supporting seat includes two parallel and facing supporting bars, the upper ends of the two supporting bars are provided with opposite notches along the length direction, and the two opposite sides of the substrate are respectively Bearing on the notch, the lower end of the supporting bar extends into the through groove and is in tangential contact with the roller. The notch of the supporting bar can carry the substrate, so that the substrate is just placed in the space formed by the two notches to prevent displacement.

Specifically, the two sides of the upper end of the roller fixing plate are respectively pivotally connected with horizontally arranged guide wheels, and the supporting bar is sandwiched between the guide wheels on both sides of the upper end of the roller fixing plate. The guide wheel can guide the supporting seat, so that the supporting bar can move smoothly, quickly and accurately.

Specifically, the end of the supporting bar has support arms extending along the base, and the support arms are fixedly connected by a horizontal horizontal plate. The horizontal movement mechanism and the supporting seat can be fixed together by the support arm to realize synchronous movement, the structure is simple, and the assembly and disassembly are convenient.

More specifically, the horizontal movement mechanism includes a screw motor, a ball screw, a screw nut and a screw base, the screw motor is fixed on the screw base, and the screw base is fixed on the lifting Mechanistically, the screw nut is fixed on the horizontal plate, the ball screw is connected to the output shaft of the screw motor and engaged with the screw nut, and the ball screw is arranged horizontally. By using the screw motor to drive the ball screw, the ball screw drives the screw nut to move back and forth along the axial direction of the ball screw, because the ball screw and the screw nut can cooperate Accurate positioning, therefore, the supporting seat can also be accurately moved and positioned under the drive of the screw nut.

Preferably, the lifting drive mechanism further includes several rotating shaft bearing seats fixed on the base, and the rotating shaft pivotally passes through the rotating shaft supporting seats. Due to the long length of the rotating shaft, by using the rotating shaft supporting seat to carry the rotating shaft, the bending deformation of the rotating shaft due to excessive force in the middle section is prevented.

Preferably, the lower ends of the two corresponding lifting columns are fixedly connected by a horizontal frame, and the circular wheels are correspondingly pivotally connected to the horizontal frame. The horizontal frame can fix the circular wheel so that the circular wheel can rotate on the horizontal frame so as to roll tangentially to the eccentric wheel.

Specifically, the horizontal frame adjacent to the horizontal movement mechanism protrudes from a fixed column, and the fixed column is fixedly connected with the horizontal movement mechanism. The horizontal moving mechanism can realize synchronous rising or falling with the supporting base by being connected with the horizontal frame.

Specifically, the circular wheel is pivotally connected to the horizontal moving mechanism, and an eccentric wheel which is in tangential contact with the wheel surface of the circular wheel pivotally connected to the horizontal moving mechanism is fixed on the rotating shaft. By arranging the circular wheel and the eccentric wheel, the lifting drive mechanism drives the horizontal movement mechanism while driving the supporting seat up and down, so as to realize synchronous lifting with the supporting seat.

Compared with the prior art, because the present invention uses a rotating shaft motor to drive the rotating shaft, the rotating shaft drives several eccentric wheels at the same time, and utilizes the characteristics that different radii on the eccentric wheels have different heights when rotating, so that A plurality of the lifting mechanisms can move up and down, so that the supporting seat and the horizontal moving mechanism can rise or fall at the same time, and then use the screw motor to drive the ball screw to drive the screw nut, so that The supporting seat can move back and forth horizontally, and by controlling the intermittent rotation of the motor, the supporting seat carrying the substrate can rise or fall intermittently, and move back and forth intermittently, so that the substrate can be input to the heater and then output after heating, the whole process is highly automated, which can greatly reduce labor intensity, and use the ball screw to drive, so that the moving seat can move accurately and quickly, which greatly improves the production efficiency. reduce manufacturing cost.

Description of drawings

Fig. 1 is a structural schematic diagram of the two-way intermittent transmission mechanism of the present invention.

FIG. 2 is a schematic diagram of the state of the bidirectional intermittent transmission mechanism when the input rollers transport substrates.

Fig. 3 is an enlarged view of part A in Fig. 1 .

Fig. 4 is a cross-sectional view of the horizontal movement mechanism in the two-way intermittent transmission mechanism of the present invention.

Detailed ways

As shown in Figures 1 and 2, the two-way intermittent transmission mechanism 100 of the present invention includes a supporting seat 1, a base 2, a lifting mechanism 3, a horizontal moving mechanism 4, and a lifting drive mechanism 5; Heated substrate 200; the base 2 and the supporting seat 1 are parallel to each other, the lower surface of the base 2 is horizontal, and the upper surface of the base 2 is equipped with three parallel fixed seats 21; The lifting mechanism 3 includes a lifting pillar 31, a round wheel 32, a roller 33 and a roller fixing plate 34, the upper end of the lifting pillar 31 is connected with the roller fixing plate 34, and the roller 33 is pivotally connected to the roller fixing plate 34, the supporting seat 1 is carried on the roller 33, and the lower end of the elevating column 31 slides through the fixed seat 21 and is pivotally connected with the round wheel 32; the horizontal moving mechanism 4 and the supporting The moving seat 1 is fixedly connected, and the horizontal moving mechanism 4 drives the supporting seat 1 to perform horizontal reciprocating motion on the roller 33; the lifting drive mechanism 5 includes a rotating shaft 51, a rotating shaft motor 52 and an eccentric wheel 53, and the The rotating shaft motor 52 is fixed on the base 2, the rotating shaft 51 is pivotally connected to the base 2 and connected with the output shaft of the rotating shaft motor 52, the eccentric wheel 53 is fixed on the rotating shaft 51 and The wheel surface of the eccentric wheel 53 is in tangential contact with the wheel surface of the circular wheel 32, and the rotating shaft motor 52 drives the supporting seat 1 and the horizontal moving mechanism 4 through the eccentric wheel 53 to perform vertical lifting movement synchronously.

As shown in FIG. 3 , the roller fixing plate 34 defines a through slot 34a, and the roller 33 is pivotally connected in the through slot 34a. By providing the through groove 34a, the roller 33 can be accommodated therein, and the structure is simple and compact. The supporting seat 1 includes two supporting bars 11 arranged parallel to each other and facing each other. The upper ends of the two supporting bars 11 are provided with opposite notches 11a along the length direction. The two opposite sides of the substrate 200 Carried on the notches 11 a respectively, the lower ends of the supporting bars 11 extend into the through grooves 34 a and are in tangential contact with the rollers 33 . The notch 11 a of the supporting bar 11 can carry the substrate 200 , so that the substrate 200 is just placed in the space formed by the two notches 11 a to prevent the substrate 200 from being displaced. Both sides of the upper end of the roller fixing plate 34 are respectively pivotally connected with horizontal guide wheels 34 b , and the supporting bar 11 is sandwiched between the guide wheels 34 b on both sides of the upper end of the roller fixing plate 34 . The guide wheel 34b can guide the supporting seat 1, so that the supporting bar 11 can move smoothly, quickly and accurately. The end of the supporting bar 11 has supporting arms 12 extending along the base, and the supporting arms 12 are fixedly connected by a horizontal plate 13 . The support arm 12 can be used to fix the horizontal moving mechanism 4 and the supporting seat 1 together to realize synchronous movement, the structure is simple, and the assembly and disassembly are convenient.

4, the horizontal movement mechanism 4 includes a screw motor 41, a ball screw 42, a screw nut 43 and a screw base 44, and the screw motor 41 is fixed on the screw base 44. The screw base 44 is fixed on the horizontal frame 35 of the lifting mechanism 3, the screw nut 43 is fixed on the horizontal plate 13, and the output of the ball screw 42 and the screw motor 41 The shaft is connected and engaged with the screw nut 43, and the ball screw 42 is arranged horizontally. By using the screw motor 41 to drive the ball screw 42, the ball screw 42 drives the screw nut 43 to move back and forth along the axial direction of the ball screw 42, because the ball screw 42 Cooperating with the screw nut 43 can precisely position, therefore, under the driving of the screw nut 43, the said supporting base 1 can also move and position accurately.

The lifting drive mechanism 5 also includes several rotating shaft bearing seats 54 fixed on the base 2 , and the rotating shaft 51 pivotally passes through the rotating shaft supporting seats 54 . Due to the long length of the rotating shaft 51 , the rotating shaft 51 is prevented from being bent and deformed due to excessive force in the middle section by using the rotating shaft supporting seat 54 to carry the rotating shaft 51 .

The lower ends of the two corresponding elevating columns 31 are fixedly connected by a horizontal frame 35 , and the circular wheels 32 are correspondingly pivotally connected to the horizontal frame 35 . The horizontal frame 35 can fix the circular wheel 32 so that the circular wheel 32 can rotate on the horizontal frame 35 so as to roll tangentially with the eccentric wheel 34 . More specifically, the horizontal frame 35 adjacent to the horizontal movement mechanism 4 protrudes from a fixed column 35 a, and the fixed column 35 a is fixedly connected with the horizontal movement mechanism 4 . Said horizontal moving mechanism 4 can realize synchronous ascending or descending with said supporting base 1 by being connected with said transverse frame 35 .

The circular wheel 32 is pivotally connected to the horizontal moving mechanism 4 , and the eccentric wheel 34 which is in tangential contact with the wheel surface of the circular wheel 32 pivotally connected to the horizontal moving mechanism 4 is fixed on the rotating shaft 51 . By arranging the round wheel 32 and the eccentric wheel 34, the lifting drive mechanism 5 drives the horizontal moving mechanism 4 while driving the supporting seat 1 up and down, so as to realize synchronous lifting with the supporting seat 1 .

Based on the above and in conjunction with the accompanying drawings, the working principle of the two-way intermittent transmission mechanism 100 of the present invention is described in detail below:

A heater 500 is installed directly above the supporting seat 1 of the two-way intermittent transmission mechanism 100. The heater 500 is flat and parallel to the supporting seat 1. When working, the input roller 300 moves along the When rotating in the direction a, the substrate 200 is carried on the input roller 300 and moves in the direction b. When the base plate 200 moves directly above the input roller 200, the input roller 200 stops rotating, the rotating shaft motor 52 rotates to drive the eccentric wheel 53, and the eccentric wheel 53 rotates, because the eccentric wheel 53 The radii are different. When the wheel surface of the eccentric wheel 53 slides relative to the wheel surface of the roller 33 to lift the roller 33, the roller fixing plate 34 rises and pushes the lifting pillar 31 to rise, and then pushes the roller 33 to rise. The supporting seat 1 rises, and when the supporting seat 1 rises to the horizontal plane of the substrate 200, the substrate 200 is lifted and continues to rise. When the side with the largest radius of the eccentric wheel 53 rotates to the highest point, the Described rotating shaft motor 52 stops rotating, and at this moment, described holder 1 reaches highest point and stops rising. At the same time, the screw motor 41 rotates to drive the ball screw 42, and the ball screw 42 rotates to make the screw nut 43 move along the b direction, and then the horizontal plate 13 and the support arm 12 drive The supporting base 1 translates in the direction b along the horizontal direction. When the supporting seat 1 translates to directly above the heater 500, the screw motor 41 stops rotating, so that the supporting seat 1 stops translation. At this time, the rotating shaft motor 52 starts to continue to rotate, and the side with the smaller radius of the eccentric wheel 53 is tangent to the roller 33. During this process, the supporting base 1 descends to place the substrate 200 on the heating Heater 500 above. After the heating is completed, the shaft motor 52 rotates to drive the eccentric wheel 53 to hold up the substrate 200 and then stops, and the screw motor 41 continues to rotate to translate the substrate 200 directly above the output roller 400 and then stops. , the rotating shaft motor 52 rotates again to lower the substrate 200 and place it on the output roller 400, and the output roller 400 rotates to send the substrate 200 to the next process. Finally, the screw motor 41 rotates in the opposite direction to drive the ball screw 42, so that the supporting base 1 is translated to the initial position, ready to transport the next substrate.

Because the present invention drives described rotating shaft 51 by using a rotating shaft motor 52, makes described rotating shaft 51 drive several described eccentric wheels 53 simultaneously, utilizes the characteristic that different radii on described eccentric wheel 53 have different heights when rotating, makes multiple The lifting mechanism 3 moves up and down, so that the supporting seat 1 and the horizontal moving mechanism 4 can rise or fall at the same time, and then use the screw motor 41 to drive the ball screw 42 to drive the screw The nut 43 enables the supporting seat 1 to move back and forth horizontally, and by controlling the intermittent rotation of the motor, the supporting seat 1 carrying the substrate 200 can rise or fall intermittently, and move back and forth intermittently, thereby realizing the The substrate 200 is input to the heater 500 and then output after heating. The whole process has a high degree of automation and can greatly reduce labor intensity. Moreover, it is driven by the ball screw 42 so that the moving seat 1 can move. Accurate and fast, greatly improving production efficiency and reducing production costs.

The working principles of the input and output rollers 300, 400 and the heater 500 involved in the two-way intermittent transmission mechanism 100 of the present invention are well known to those skilled in the art, and will not be described in detail here.

The above disclosures are only preferred examples of the present invention, and of course cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the patent scope of the present invention still fall within the scope of the present invention.

Claims (10)

1. A two-way intermittent transmission mechanism, suitable for transporting the substrate of an organic light-emitting display device before and after heating, characterized in that it includes: a supporting seat, the supporting seat is used to carry the substrate to be heated; A base, the base and the supporting seat are parallel to each other, the lower surface of the base is in a horizontal structure, and at least two fixed seats parallel to each other are installed on the upper surface of the base; A lifting mechanism, the lifting mechanism includes a lifting pillar, a round wheel, a roller and a roller fixing plate, the upper end of the lifting pillar is connected to the roller fixing plate, the rollers are pivotally connected to the roller fixing plate, and the support The movable seat is carried on the roller, and the lower end of the lifting pillar slides through the fixed seat and is pivotally connected with the round wheel; a horizontal movement mechanism, the horizontal movement mechanism is fixedly connected with the support seat, and the horizontal movement mechanism drives the support seat to perform horizontal reciprocating motion on the roller; and A lifting drive mechanism, the lifting drive mechanism includes a rotating shaft, a rotating shaft motor and an eccentric wheel, the rotating shaft motor is fixed on the base, the rotating shaft is pivotally connected to the base and connected to the output shaft of the rotating shaft motor connected, the eccentric wheel is fixed on the rotating shaft and the wheel surface of the eccentric wheel is in tangential contact with the wheel surface of the circular wheel, and the rotating shaft motor drives the supporting seat and the horizontal movement mechanism through the eccentric wheel Simultaneously do vertical lifting movement. 2 . The two-way intermittent transmission mechanism according to claim 1 , wherein the roller fixing plate is provided with a through groove, and the roller is pivotally connected in the through groove. 3 . 3. The two-way intermittent transmission mechanism as claimed in claim 1, characterized in that: the supporting seat comprises two supporting bars parallel to each other and facing each other, and the upper ends of the two supporting bars are provided along the length direction. The opposite notch, the two opposite sides of the substrate are carried on the notch respectively, the lower end of the supporting bar extends into the through groove and is in tangential contact with the roller. 4. The two-way intermittent transmission mechanism according to claim 2, characterized in that: the two sides of the upper end of the roller fixing plate are respectively pivotally connected with guide wheels arranged horizontally, and the supporting bar is clamped and arranged on the fixed rollers. Between the guide wheels on both sides of the upper end of the board. 5. The two-way intermittent transmission mechanism according to claim 2, characterized in that: the end of the supporting bar has a support arm extending along the base, and the support arms are fixedly connected by a horizontal horizontal plate . 6. The two-way intermittent transmission mechanism according to claim 5, wherein the horizontal movement mechanism includes a screw motor, a ball screw, a screw nut and a screw base, and the screw motor is fixed on the screw On the rod base, the screw base is fixed on the lifting mechanism, the screw nut is fixed on the horizontal plate, the ball screw is connected with the output shaft of the screw motor and connected with the screw The rod nut engages and the ball screw is set horizontally. 7. The two-way intermittent transmission mechanism according to claim 1, characterized in that: the lifting drive mechanism further comprises a number of revolving bearing seats fixed on the base, and the rotating shaft pivotally passes through the revolving bearing bearing seats . 8 . The bidirectional intermittent transmission mechanism according to claim 1 , wherein the lower ends of the two corresponding elevating columns are fixedly connected by a horizontal frame, and the circular wheels are correspondingly pivotally connected to the horizontal frame. 9. The two-way intermittent transmission mechanism according to claim 8, characterized in that: the horizontal frame adjacent to the horizontal movement mechanism protrudes from a fixed column, and the fixed column is fixedly connected with the horizontal movement mechanism. 10. The two-way intermittent transmission mechanism according to claim 8, wherein the circular wheel is pivotally connected to the horizontal moving mechanism, and a circular wheel pivotally connected to the horizontal moving mechanism is fixed on the rotating shaft. An eccentric wheel in which the wheel face is in tangential contact.

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