A transmission mechanism

Abstract

The present invention discloses a conveying mechanism, including a guide device and a printing table device, wherein the guide device includes: a left guide plate, a right guide plate arranged in parallel with the left guide plate, a conveyor belt assembly arranged on the left guide plate and the right guide plate, a return push plate device arranged on the left guide plate and the right guide plate, a plate-out push rod device arranged on the left guide plate and the right guide plate, and a width adjustment device arranged on the left guide plate and the right guide plate. The present invention provides guidance for the printing medium by placing the printing medium on the conveyor belt, and the left guide plate and the right guide plate are located on both sides of the printing medium, thereby preventing the side of the printing medium provided with components from contacting other components and preventing the components from being scratched; the width adjustment device is provided, and the spacing between the left guide plate and the right guide plate can be adjusted according to the size of each printing medium, thereby adapting to printing media of various sizes.

Description

Technical Field

[0001] The present invention relates to the technical field of printing equipment, and in particular to a transmission mechanism. Background Art

[0002] With the rise of digital inkjet printing technology, the LED liquid crystal display industry is gradually trying to apply digital inkjet printing technology to the production process of LED display panels, including overlay inkjet printing and other identification applications of LED processes such as text characters, NG identification, material traceability barcodes, QR codes, immersion gold protection, packaging and other production processes. Since most of these processes are completed on LED semi-finished products, that is, the front and back sides of the LED light-emitting panel have completed the LED light array and drive circuit mounting, when the LED panel semi-finished product is made by inkjet process, the side of the LED panel semi-finished product with the drive circuit is uneven and is not allowed to be scratched, and the size of the LED panel may be different, so a special transmission and clamping device is required to realize the feeding and inkjet printing of the printing medium with protruding components on the board surface in the inkjet equipment, and at the same time, it is necessary to meet the printing media of various sizes. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a conveying mechanism. By setting a guiding device, a plate-shaped printing medium plate with protruding components on the surface can be mounted on conveyor belts on both sides, thereby achieving zero contact with the side of the printing medium plate where the components are provided, thereby realizing the feeding of the printing medium in the inkjet device and being able to meet the needs of printing media of various sizes.

[0004] The technical solution of the present invention is as follows: a conveying mechanism is provided, including a guide device and a printing table device arranged on the guide device, the guide device includes: a left guide plate, a right guide plate arranged parallel to the left guide plate, a conveyor belt assembly arranged on the left guide plate and the right guide plate, a return push plate device arranged on the left guide plate and the right guide plate, a plate out push rod device arranged on the left guide plate and the right guide plate, and a width adjustment device arranged on the left guide plate and the right guide plate.

[0005] Furthermore, the conveyor belt assembly includes: a plurality of first left pulleys arranged on the inner side wall of the left guide plate, a first left conveyor belt sleeved on the first left pulley, a plurality of first right pulleys arranged on the inner side wall of the right guide plate, a first right conveyor belt sleeved on the first right pulley, and a first motor driving the first left pulley and the first right pulley to rotate.

[0006] Furthermore, the correcting push plate device is arranged at the head end of the guide device, and includes: a push plate arranged on the left guide plate and the right guide plate, and a first telescopic cylinder driving the push plate to move forward and backward.

[0007] Furthermore, the plate-out pushing rod device is arranged at the tail end of the guide device, and includes: a second telescopic cylinder arranged on the left guide plate and the right guide plate and extending horizontally, a third telescopic cylinder arranged on the second telescopic cylinder and extending vertically, and a pushing rod connected to the third telescopic cylinder.

[0008] Furthermore, the width adjustment device includes: two second left pulleys arranged on the outside of the left guide plate, a second left conveyor belt sleeved on the second left pulley, a second motor driving the second left pulley to rotate, a screw connected to the second left pulley, and a nut arranged between the screw and the left guide plate.

[0009] Further, the printing table device includes: a first left linear guide rail arranged on the outer wall of the left guide plate, a first right linear guide rail arranged on the outer wall of the right guide plate, a left pressure plate body arranged on the first left linear guide rail, a right pressure plate body arranged on the first right linear guide rail, a spline shaft connecting the left pressure plate body and the right pressure plate body, a second left linear guide rail arranged on the inner wall of the left guide plate, a second right linear guide rail arranged on the inner wall of the right guide plate, a left lifting body arranged on the second left linear guide rail, a right lifting body arranged on the second right linear guide rail, a left transverse connecting plate connecting the left lifting body and the left pressure plate body, and a right transverse connecting plate connecting the right lifting body and the right pressure plate body.

[0010] Furthermore, the conveying mechanism also includes a table height measuring device, and the table height measuring device is arranged on both sides of the left guide plate and the right guide plate in a facing manner.

[0011] Furthermore, the first left conveyor belt and the first right conveyor belt are composed of a plurality of conveyor belt units, each conveyor belt unit is correspondingly provided with two first left pulleys or first right pulleys, and a splicing belt is sleeved between adjacent first left pulleys or first right pulleys of each two adjacent conveyor belt units.

[0012] Furthermore, a plurality of support blocks are provided at positions of the left guide plate and the right guide plate corresponding to the positions of the return push plate device, and the push plate is provided with grooves for accommodating the support blocks corresponding to the support blocks, and the support blocks are L-shaped.

[0013] Furthermore, the left pressure plate body and the right pressure plate body include: a vertical portion arranged in a vertical direction, a horizontal portion connected to the vertical portion and arranged in a horizontal direction, and a shielding portion arranged on the horizontal portion, and the vertical portion is connected to the first left linear guide rail or the first right linear guide rail.

[0014] By adopting the above scheme, the printing medium is loaded on the conveyor belt assembly, and the conveyor belt assembly conveys the printing medium to the alignment push plate device, which adjusts and aligns the printing medium. Then, the lifting body on the printing table device lifts the printing medium to make it separate from the conveyor belt, and the lifting body and the pressure plate body of the printing table assembly form a clamping state for the left and right plate edges of the printing medium. Then, the printing table device carries the printing medium to the printing area of ​​the equipment for inkjet printing. After the inkjet printing operation is completed, the lifting body descends to put the printing medium back on the conveyor belt, and the conveyor belt continues to transport the printing medium to the plate outlet push rod device, and the plate outlet push rod device pushes the printing medium away from the conveyor belt.

[0015] The present invention has the following beneficial effects:

[0016] 1. The present invention places the printing medium on a conveyor belt, and the left guide plate and the right guide plate are located on both sides of the printing medium to provide guidance for the printing medium, thereby preventing the side of the printing medium with components from contacting other components, thereby preventing the components from being scratched;

[0017] 2. The present invention is provided with a width adjustment device, which can adjust the distance between the left guide plate and the right guide plate according to the size of each printing medium, so as to adapt to printing media of various sizes;

[0018] 3. The present invention is provided with a table height measuring device, which can detect the warping and over-height of the printing medium and alarm, thereby preventing the printing medium from being scratched and scrapped, and ensuring the production yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The structure of the present invention is schematically shown Figure 1 .

[0020] Figure 2 The structure of the present invention is schematically shown Figure 2 .

[0021] Figure 3 for Figure 2 Enlarged schematic diagram of part A. DETAILED DESCRIPTION

[0022] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] See also Figure 1 and Figure 2 The present invention provides a conveying mechanism, including a guide device and a printing table device 7 arranged on the guide device.

[0024] The guide device includes: a left guide plate 1, a right guide plate 2 arranged parallel to the left guide plate 1, a conveyor belt assembly 3 arranged on the left guide plate 1 and the right guide plate 2, a return plate push plate device 4 arranged on the left guide plate 1 and the right guide plate 2, a plate out push rod device 5 arranged on the left guide plate 1 and the right guide plate 2, and a width adjustment device 6 arranged on the left guide plate 1 and the right guide plate 2.

[0025] The conveyor belt assembly 3 includes: a plurality of first left pulleys 30 provided on the inner side wall of the left guide plate 1, a first left conveyor belt 31 sleeved on the first left pulley 30, a plurality of first right pulleys provided on the inner side wall of the right guide plate 2, a first right conveyor belt sleeved on the first right pulley, and a first motor 32 for driving the first left pulley 30 and the first right pulley to rotate. The first left conveyor belt 31 and the first right conveyor belt are composed of a plurality of conveyor belt units, each of which is provided with two first left pulleys 30 or first right pulleys, and a splicing belt 33 is sleeved between the adjacent first left pulleys or first right pulleys of each two adjacent conveyor belt units. The positions of the two pulleys can be adjusted to adjust the tension of the conveyor belt. The printing medium 100 is carried on the first left conveyor belt 31 and the first right conveyor belt, and driven by the first motor 32, the first left conveyor belt 31 and the first right conveyor belt transport the printing medium 100 to other places. The printing medium 100 is placed on a conveyor belt, and the side of the printing medium 100 where the components are provided (that is, the upper surface of the printing medium) will not contact other components.

[0026] The return push plate device 4 is arranged at the head end of the guide device, and includes: a push plate 40 arranged on the left guide plate 1 and the right guide plate 2, and a first telescopic cylinder 41 for driving the push plate 40 to move forward and backward. The left guide plate 1 and the right guide plate 2 are provided with a plurality of support blocks 43 at positions corresponding to the return push plate device 4, and the push plate 40 is provided with grooves for accommodating the support blocks 43 corresponding to the support blocks 43, and the support blocks 43 are L-shaped. When the printing medium 100 runs to the return push plate device 4, the return push plate device 4 corrects the position of the transported printing medium 100, and performs mechanical alignment of the printing medium for subsequent inkjet printing operations. During correction, the first telescopic cylinder 41 drives the push plate 40 to move toward the printing medium 100, and corrects the position of the printing medium 100. During correction, the support blocks 43 play a supporting role for the printing medium 100.

[0027] Please refer to Figures 1 to 3The printing table device 7 includes: a first left linear guide rail arranged on the outer wall of the left guide plate 1, a first right linear guide rail 71 arranged on the outer wall of the right guide plate 2, a left pressure plate body 72 arranged on the first left linear guide rail, a right pressure plate body 73 arranged on the first right linear guide rail 71, a spline shaft 74 connecting the left pressure plate body 72 and the right pressure plate body, a second left linear guide rail 75 arranged on the inner wall of the left guide plate 1, a second right linear guide rail arranged on the inner wall of the right guide plate 2, a left lifting body 76 arranged on the second left linear guide rail 75, a right lifting body arranged on the second right linear guide rail, a left transverse connecting plate connecting the left lifting body 76 and the left pressure plate body 72, and a right transverse connecting plate 77 connecting the right lifting body and the right pressure plate body. A long slot hole is respectively provided on the left guide plate 1 and the right guide plate 2. The left transverse connecting plate passes through the long slot hole on the left guide plate 1 to connect the left lifting body 76 with the left pressure plate body 72, and the right transverse connecting plate 77 passes through the long slot hole on the right guide plate 2 to connect the right lifting body with the right pressure plate body.

[0028] The left pressure plate body 72 and the right pressure plate body 73 include: a vertical portion 721 arranged in a vertical direction, a horizontal portion 722 connected to the vertical portion 721 and arranged in a horizontal direction, and a shielding portion 723 arranged on the horizontal portion 722, and the vertical portion 721 is connected to the first left linear guide rail or the first right linear guide rail 71. After the position of the printing medium 100 is corrected, the left lifting body 76 and the right lifting body lift the printing medium 100 to separate it from the first left conveyor belt 31 and the first right conveyor belt. The printing medium 100 is clamped between the lifting body and the shielding portion 723. The printing table device 7 carries the clamped printing medium 100 to the printing area of ​​the equipment for inkjet printing. After the printing medium 100 completes the inkjet printing operation, the left lifting body 76 and the right lifting body descend, and the printing medium 100 falls back onto the first left conveyor belt 31 and the first right conveyor belt. Then the first left conveyor belt 31 and the first right conveyor belt transport the printing medium 100 to the plate ejection push rod device 5.

[0029] The plate-out push rod device 5 is arranged at the rear end of the guide device, and comprises: a second telescopic cylinder 50 arranged on the left guide plate 1 and the right guide plate 2 and telescopically extending and retracting, a third telescopic cylinder 52 arranged on the second telescopic cylinder 51 and telescopically extending and retracting, and a push rod 53 connected to the third telescopic cylinder 52. When the printing medium 100 is transported to the plate-out push rod device 5, the third telescopic cylinder 52 rises so that the push rod arranged on the second telescopic cylinder 51 is aligned with the rear of the printing medium 100, and then the second telescopic cylinder 51 translates the printing medium 100 away from the conveying mechanism and pushes the printing medium 100 into the printing medium storage box arranged behind the conveying mechanism.

[0030] The width adjustment device 6 comprises: two second left pulleys 61 arranged outside the left guide plate 1, a second left conveyor belt 62 sleeved on the second left pulley 61, two screw rods 63 connected to the second left pulley 61, a second motor 64 arranged on one of the screw rods 63, and a nut 65 arranged between the screw rod 63 and the left guide plate 1. The right guide plate 2 is fixed, and the left guide plate 1 is movable. The left guide plate 1 is pushed to move by the width adjustment device 6 to adjust the distance between the left guide plate 1 and the right guide plate 2, so that the conveying mechanism can adapt to printing media 100 of various sizes. The second motor 64 drives a screw rod 63 to rotate, thereby driving the second left pulley 61 connected to the screw rod 63 to rotate, and then the second left conveyor belt 62 drives another second left pulley 61 to rotate, thereby driving another screw rod 63 to rotate, and the rotation of the screw rod 63 drives the left guide plate 1 to translate. The second motor 64 is rotated forward or reversely to drive the left guide plate 1 to approach or move away from the right guide plate 2 , so as to adjust the distance between the left guide plate 1 and the right guide plate 2 .

[0031] The conveying mechanism further includes a table height measuring device 8, which is disposed on both sides of the left guide plate 1 and the right guide plate 2 in a facing manner. When the printing table device 7 carries the printing medium 100 and moves from the area of ​​the return push plate device 4 to the printing area, the table height measuring device 8 detects the printing medium 100 for warping and over-height and gives an alarm, thereby preventing the warping of the printing medium 100 from interfering with the movement of the printing carriage used for printing and causing damage to the expensive print head, and preventing the printing medium 100 from being scratched and scrapped, thereby ensuring the production yield of the printing medium 100.

[0032] In summary, the printing medium is carried on the conveyor belt assembly, the conveyor belt assembly conveys the printing medium to the return push plate device, the return push plate device adjusts and aligns the printing medium, and then the lifting body on the printing table device lifts the printing medium to make it separate from the conveyor belt, and the lifting body and the pressure plate body of the printing table assembly form a clamping state for the left and right plate edges of the printing medium, and then the printing table device carries the printing medium to the printing area of ​​the equipment for inkjet printing. After the inkjet printing operation is completed, the lifting body descends and puts the printing medium back on the conveyor belt, and the conveyor belt continues to transport the printing medium to the plate push rod device, and the plate push rod device pushes the printing medium away from the conveyor belt. The present invention has the following beneficial effects:

[0033] 1. The present invention places the printing medium on a conveyor belt, and the left guide plate and the right guide plate are located on both sides of the printing medium to provide guidance for the printing medium, thereby preventing the side of the printing medium with components from contacting other components, thereby preventing the components from being scratched;

[0034] 2. The present invention is provided with a width adjustment device, which can adjust the distance between the left guide plate and the right guide plate according to the size of each printing medium, so as to adapt to printing media of various sizes;

[0035] 3. The present invention is provided with a table height measuring device, which can detect the warping and over-height of the printing medium and alarm, thereby preventing the printing medium from being scratched and scrapped, and ensuring the production yield.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A transmission mechanism, characterized in that: The invention comprises a guide device and a printing table device arranged on the guide device, wherein the guide device comprises: a left guide plate, a right guide plate arranged parallel to the left guide plate, a conveyor belt assembly arranged on the left guide plate and the right guide plate, a return plate pusher device arranged on the left guide plate and the right guide plate, a plate ejection pusher device arranged on the left guide plate and the right guide plate, and a width adjustment device arranged on the left guide plate and the right guide plate; The conveyor belt assembly comprises: a plurality of first left pulleys arranged on the inner side wall of the left guide plate, a first left conveyor belt sleeved on the first left pulley, a plurality of first right pulleys arranged on the inner side wall of the right guide plate, a first right conveyor belt sleeved on the first right pulley, and a first motor driving the first left pulley and the first right pulley to rotate; The return push plate device is arranged at the head end of the guide device, and comprises: push plates arranged on the left guide plate and the right guide plate, and a first telescopic cylinder driving the push plates to move forward and backward; The plate-out push rod device is arranged at the tail end of the guide device, and comprises: a second telescopic cylinder arranged on the left guide plate and the right guide plate and extending in the horizontal direction, a third telescopic cylinder arranged on the second telescopic cylinder and extending in the vertical direction, and a push rod connected to the third telescopic cylinder; The width adjustment device comprises: two second left pulleys arranged outside the left guide plate, a second left conveyor belt sleeved on the second left pulley, a second motor driving the second left pulley to rotate, a screw connected to the second left pulley, and a nut arranged between the screw and the left guide plate; The printing table device includes: a first left linear guide rail arranged on the outer wall of the left guide plate, a first right linear guide rail arranged on the outer wall of the right guide plate, a left pressure plate body arranged on the first left linear guide rail, a right pressure plate body arranged on the first right linear guide rail, a spline shaft connecting the left pressure plate body and the right pressure plate body, a second left linear guide rail arranged on the inner wall of the left guide plate, a second right linear guide rail arranged on the inner wall of the right guide plate, a left lifting body arranged on the second left linear guide rail, a right lifting body arranged on the second right linear guide rail, a left transverse connecting plate connecting the left lifting body and the left pressure plate body, and a right transverse connecting plate connecting the right lifting body and the right pressure plate body.

2. The transmission mechanism according to claim 1, characterized in that: It also includes a table height measuring device, which is arranged on both sides of the left guide plate and the right guide plate in a facing manner.

3. The conveying mechanism according to claim 1, characterized in that: The first left conveyor belt and the first right conveyor belt are composed of a plurality of conveyor belt units, each conveyor belt unit is provided with two first left pulleys or first right pulleys, and a splicing belt is sleeved between the adjacent first left pulleys or first right pulleys of each two adjacent conveyor belt units.

4. The conveying mechanism according to claim 1, characterized in that: The left guide plate and the right guide plate are provided with a plurality of support blocks at positions corresponding to the return push plate device, and the push plate is provided with grooves for accommodating the support blocks corresponding to the support blocks, and the support blocks are L-shaped.

5. The conveying mechanism according to claim 1, characterized in that: The left pressure plate body and the right pressure plate body include: a vertical portion arranged in a vertical direction, a horizontal portion connected to the vertical portion and arranged in a horizontal direction, and a shielding portion arranged on the horizontal portion, and the vertical portion is connected to the first left linear guide rail or the first right linear guide rail.

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