Multi-channel high-speed dispensing equipment

Abstract

The invention discloses multi-channel high-speed dispensing equipment which comprises a machine table, an X-axis gear and rack module sliding table, a Z-axis servo lead screw lifter, a working platform, a Y-axis linear rail, a Y-axis rack rail, a sliding table, a servo motor and a dispensing head. The X-axis gear and rack module sliding table is arranged on the machine table, and the Z-axis servo lead screw lifter is erected on the X-axis gear and rack module sliding table; a working platform is erected on the Z-axis servo lead screw lifting machine, and a Y-axis linear rail and a Y-axis toothed rail are arranged on the working platform. By means of the mode, according to the multi-channel high-speed dispensing equipment, high-speed dispensing is achieved in a multi-dispensing-head independent operation mode, a layered-structure rubber pipe wiring mode is arranged for high-speed dispensing in a matched mode, load balance can be maintained, pressure balance is achieved by means of a multi-stage pressure reduction and flow division structure, and the reliability of the multi-channel high-speed dispensing equipment is improved. And the equipment has the advantages of high overall automation degree, high speed, stability and the like.

Description

Technical Field

[0001] The present invention relates to the field of display backplane processing equipment, and particularly to a multi-channel high-speed dispensing device. Background Art

[0002] The assembly process of a display backplane involves a dispensing process. In the dispensing process, due to the influence of the area of the large-size display backplane, the time-consuming of the dispensing operation is relatively long. The prior art usually adopts the method of single-row or multi-row dispensing heads linked for dispensing to achieve the processing operation. However, for backplanes of different sizes, different numbers of single-row dispensing heads need to be configured. After the size change, not only the number of rows of the dispensing heads is changed, but also the output pressure of the hose for supplying glue is further affected. Therefore, when the equipment is changed in type, not only the combined structure of the dispensing heads needs to be redesigned, but also problems such as the pressure supply method need to be considered. Affected by this, it is difficult for the prior art to meet the dispensing requirements of high-speed and multi-specification screen backplanes. Summary of the Invention

[0003] The main technical problem to be solved by the present invention is to provide a multi-channel high-speed dispensing device, which realizes high-speed dispensing through the independent operation mode of multiple dispensing heads, and is equipped with a hose wiring method with a hierarchical structure for high-speed dispensing. It can not only maintain the load balance, but also achieve pressure balance by means of a multi-stage decompression and shunt structure. The overall automation degree of the equipment is high and it has the advantages of high speed and stability.

[0004] To solve the above technical problem, a technical solution adopted by the present invention is: to provide a multi-channel high-speed dispensing device, including a machine table, an X-axis gear-rack module slide, a Z-axis servo screw elevator, a working platform, a Y-axis linear guide, a Y-axis tooth rail, a slide, a servo motor, and a dispensing head. The X-axis gear-rack module slide is arranged on the machine table, the Z-axis servo screw elevator is mounted on the X-axis gear-rack module slide, the working platform is mounted on the Z-axis servo screw elevator, the Y-axis linear guide and the Y-axis tooth rail are arranged on the working platform, a plurality of slides are arranged on the Y-axis linear guide, a servo motor is arranged on each slide, each servo motor is meshed with the Y-axis tooth rail through gear transmission, and a dispensing head is hung under each slide.

[0005] In a preferred embodiment of the present invention, there are 10 dispensing heads in total, and the maximum dispensing speed of the dispensing heads is 20 glue dots per second.

[0006] In a preferred embodiment of the present invention, an upper beam is erected above the machine table, at least two plunger pumps are arranged on the upper beam, the inlet of the plunger pump is connected with a glue bucket, and a primary pressure reducing valve is arranged at the outlet of the plunger pump.

[0007] In a preferred embodiment of the present invention, at least two glue buckets are configured for each plunger pump, and an electromagnetic valve is arranged between each glue bucket and the plunger pump.

[0008] In a preferred embodiment of the present invention, a double-layer bracket is mounted on the work platform, and a group of hoses are laid on the upper and lower layers of the double-layer bracket, the downstream port of each hose is respectively connected to each dispensing head, and the upstream port of each group of hoses is uniformly connected to a secondary diverter row, the secondary diverter row is provided with a plurality of secondary inlet interfaces, each secondary inlet interface is connected to a secondary pressure reducing valve, the secondary pressure reducing valves are uniformly connected to a primary diverter row, the primary diverter row has a primary inlet interface, and the primary inlet interface is connected to a primary pressure reducing valve.

[0009] In a preferred embodiment of the present invention, the hoses are divided into two groups, with 5 hoses forming one group, and the secondary confluence interfaces are 3 in total.

[0010] In a preferred embodiment of the present invention, each rubber hose is connected to a drag chain, the drag chain is laid in a double-layer bracket, the secondary diversion row and the primary diversion row are symmetrically arranged on the left and right sides of the double-layer bracket respectively, the drag chain is divided into an upper drag chain and a lower drag chain, the upper drag chain and the lower drag chain are arranged in reverse symmetry, and the counterweight of the double-layer bracket is balanced up and down and left and right.

[0011] In a preferred embodiment of the present invention, the machine is provided with a glue wiping platform matching the glue dispensing head at one end of the X-axis gear rack module slide, and a dust-free cloth is provided on the glue wiping platform. Both ends of the dust-free cloth are wound on a material tray, and the material tray is mounted on a hand-held shaft and is transmission-connected to a traction motor.

[0012] In a preferred embodiment of the present invention, the bottom of the glue wiping platform is mounted on a base frame, and the base frame is installed on an X-axis translation cylinder. The glue wiping platform invades the travel range of the X-axis gear rack module slide through the X-axis translation cylinder and is adapted to connect with the glue dispensing head.

[0013] In a preferred embodiment of the present invention, the machine is equipped with a conveyor roller line, on which a material tray is carried, the material tray is provided with a plurality of avoidance openings, and a plurality of top columns are vertically arranged directly below the avoidance openings, and all the top columns are integrated on a pneumatic lifting platform; left and right side baffles are arranged on both sides of the conveyor roller line, and pulley groups are arranged on the left and right side baffles; blocking cylinders are arranged in the conveyor roller line and matched with the two ends of the material tray respectively, and the blocking cylinders are installed on an X-axis telescopic cylinder for clamping and guiding; a visual positioning camera is arranged directly above the machine.

[0014] The beneficial effects of the present invention are as follows: A multi-channel high-speed dispensing device provided by the present invention realizes high-speed dispensing through the independent operation mode of multiple dispensing heads, and is equipped with a hierarchical structure of hose wiring for high-speed dispensing, which can not only maintain load balance, but also achieve pressure balance with the help of a multi-stage decompression and shunt structure. The overall automation degree of the device is high and it has the advantages of high speed and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings, where: Figure 1 is the overall structure diagram of a preferred embodiment of a multi-channel high-speed dispensing device of the present invention; Figure 2 is the 4 structure diagram of a preferred embodiment of a multi-channel high-speed dispensing device of the present invention; Figure 3 is the five-way shunt structure diagram of the hose of a preferred embodiment of a multi-channel high-speed dispensing device of the present invention; Figure 4 is the double-layer bracket structure diagram of a preferred embodiment of a multi-channel high-speed dispensing device of the present invention; Figure 5 is the redundancy mode structure diagram of the glue bucket of a preferred embodiment of a multi-channel high-speed dispensing device of the present invention; Figure 6 is the wiping glue platform structure diagram of a preferred embodiment of a multi-channel high-speed dispensing device of the present invention; Figure 7 is the product positioning mode structure diagram of a preferred embodiment of a multi-channel high-speed dispensing device of the present invention; Figure 8 is the conveying line in and out stop structure diagram of a preferred embodiment of a multi-channel high-speed dispensing device of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0017] As Figure 1-8 shown, the embodiments of the present invention include: A multi-channel high-speed dispensing device, including a machine table 1, an X-axis gear-rack module slide 2, a Z-axis servo screw elevator 3, a working platform 4, a Y-axis linear guide 5, a Y-axis tooth rail 6, a slide 7, a servo motor 8, and a dispensing head 9. The X-axis gear-rack module slide 2 is arranged on the machine table 1. The Z-axis servo screw elevator 3 is mounted on the X-axis gear-rack module slide 2. The working platform 4 is mounted on the Z-axis servo screw elevator 3. The Y-axis linear guide 5 and the Y-axis tooth rail 6 are arranged on the working platform 4. A plurality of slides 7 are arranged on the Y-axis linear guide 5. A servo motor 8 is arranged on each slide 7. Each servo motor 8 is meshed with the Y-axis tooth rail 6 through gear transmission. Each slide 7 is hung with a dispensing head 9.

[0018] Among them, there are 10 dispensing heads 9 in total, and the maximum dispensing speed of the dispensing head 9 is 20 glue dots per second.

[0019] Furthermore, a upper beam 10 is mounted above the machine table 1. At least two plunger pumps 11 are arranged on the upper beam 10. The inlet of the plunger pump 11 is connected to a glue bucket 12, and a primary pressure reducing valve 13 is arranged at the outlet of the plunger pump 11.

[0020] Furthermore, at least two glue buckets 12 are provided for each plunger pump 11, and a solenoid valve 14 is arranged between each glue bucket 12 and the plunger pump 11.

[0021] Furthermore, a double-layer bracket 15 is mounted on the working platform 4. A group of rubber hoses 16 are laid on both the upper and lower layers of the double-layer bracket 15. The downstream ports of each rubber hose 16 are respectively connected to the dispensing heads 9. The upstream ports of each group of rubber hoses 16 are uniformly connected to a secondary shunt row 17. The secondary shunt row 17 is provided with a number of secondary inlet interfaces 18. A secondary pressure reducing valve 19 is connected to each secondary inlet interface 18. The secondary pressure reducing valves 19 are uniformly connected to a primary shunt row 20. The primary shunt row 20 has a primary inlet interface 21, and the primary inlet interface 21 is connected to the primary pressure reducing valve 13.

[0022] Furthermore, there are two groups of rubber hoses 16 in total, with 5 rubber hoses 16 in a group, and there are 3 secondary inlet interfaces 18 in total.

[0023] Furthermore, each rubber hose 16 is threaded through a drag chain 22. The drag chain 22 is laid in the double-layer bracket 15. The secondary shunt row 17 and the primary shunt row 20 are symmetrically arranged on the left and right sides of the double-layer bracket 15 respectively. The drag chain 22 is divided into an upper drag chain 22 and a lower drag chain 22, and the upper drag chain 22 and the lower drag chain 22 are arranged in a reverse symmetric manner. The weights of the upper and lower parts of the double-layer bracket 15 are balanced vertically and horizontally.

[0024] Further, a rubber wiping platform 23 matching the dispensing head 9 is provided at one end of the X-axis gear-rack module slide 2 of the machine table 1. A dust-free cloth 24 is provided on the rubber wiping platform 23. Both ends of the dust-free cloth 24 are wound around a material tray 25. The material tray 25 is mounted on a hand expansion shaft 26 and is drivingly connected to a traction motor 27.

[0025] Further, the bottom of the rubber wiping platform 23 is mounted on a chassis 28. The chassis 28 is installed on an X-axis translation cylinder 29. The rubber wiping platform 23 intrudes into the stroke range of the X-axis gear-rack module slide 2 through the X-axis translation cylinder 29 and is adaptively connected to the dispensing head 9.

[0026] Further, the machine table 1 is equipped with a conveying roller line 30. The conveying roller line 30 carries the material tray 25. The material tray 25 is provided with a number of avoidance openings. A number of ejector pins 31 are vertically arranged directly below the avoidance openings. All the ejector pins 31 are integrated on a pneumatic lifting platform 32. On both sides of the conveying roller line 30, there are left and right side baffles 33. Pulley groups 34 are provided on the left and right side baffles 33. Inside the conveying roller line 30, there are blocking cylinders 35 respectively matching both ends of the material tray 25. The blocking cylinders 35 are installed on an X-axis telescopic cylinder 36 for clamping and guiding. A vision positioning camera 37 is provided directly above the machine table 1.

[0027] This embodiment provides an independent dispensing solution for ten dispensing heads 9. Through this special structural design, a high-speed operation of 20 glue dots per second is achieved. Among them, the X-axis gear-rack module slide 2 and the Z-axis servo screw lift 3 are linked to drive the dispensing head 9 to perform fixed-point operations at each coordinate point on the X-axis. As shown in the figure, the working platform 4 is equipped with three Y-axis linear guides 5 to provide sufficient stability. The servo motor 8 realizes independent operation on the rack through gears. In the dispensing operation of the large-size display backplane, ten dispensing heads 9 work simultaneously. Each dispensing head 9 is responsible for one-tenth of the product area and dispenses glue in its independent area.

[0028] To solve the efficient and stable supply of glue, this embodiment adopts a special structural method of double-layer and ten-way independent rubber hoses 16 to supply glue to each dispensing head 9. To achieve the stability of the supply pressure, five rubber hoses 16 are configured in a single layer. The glue flowing out of the plunger pump 11 is branched into three paths after passing through the first-stage shunt row 20. As shown in the figure, the three paths of glue are further branched into five paths by the second-stage shunt row 17. On the shunt lines, a primary pressure reducing valve 13 and a secondary pressure reducing valve 19 are respectively equipped to achieve precise pressure control. This rubber hose 16 structure realizes the balanced distribution of pressure for ten dispensing heads 9, thus achieving a high-performance operation of 20 glue dots / second.

[0029] In order to further solve the problem of the displacement stability of the XYZ axes of the equipment caused by the layout of multiple rubber hoses 16, a force balance structure is constructed by laying the drag chain 22 with a double-layer bracket 15, enabling stable and efficient operation during the high-speed displacement process.

[0030] This equipment is installed on the conveyor line body, and the in-and-out feeding is performed by the roller conveyor line. After the display backplane is fed through the tray 25, it is blocked and stopped, and under the auxiliary detection of the vision camera, precise positioning is achieved by the X-axis telescopic cylinder 36. After the product is positioned and loaded, it is lifted by the pneumatic lifting table 32 by the ejector pin 31 and separated from the conveyor line, and then falls back and outputs after the dispensing is completed. In addition, after the equipment operates stably for a maintenance cycle, the dispensing head 9 will be moved to the rubber wiping platform 23 for rubber wiping treatment, realizing full-process maintenance-free operation.

[0031] In summary, the present invention provides a multi-channel high-speed dispensing equipment. High-speed dispensing is achieved through the independent operation mode of multiple dispensing heads 9, and a wiring method of rubber hoses 16 with a hierarchical structure is configured for high-speed dispensing. It can not only maintain the load balance, but also achieve pressure balance with the help of a multi-stage decompression and flow splitting structure. The overall automation degree of the equipment is high and it has the advantages of high speed and stability.

[0032] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification of the present invention, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present invention.

Claims

1. A multi-channel high-speed dispensing device, characterized in that, It includes a machine platform, an X-axis gear rack module slide, a Z-axis servo screw lift, a working platform, Y-axis linear guides, Y-axis tooth rails, slides, servo motors, and dispensing heads. The X-axis gear rack module slide is arranged on the machine platform. The Z-axis servo screw lift is mounted on the X-axis gear rack module slide. The working platform is mounted on the Z-axis servo screw lift. The Y-axis linear guides and Y-axis tooth rails are arranged on the working platform. A number of slides are arranged on the Y-axis linear guides. Each slide is provided with a servo motor. Each servo motor is meshed with the Y-axis tooth rail through gear transmission. Each slide is hung with a dispensing head.

2. The multi-channel high-speed dispensing device according to claim 1, characterized in that, There are 10 dispensing heads in total, and the maximum dispensing speed of the dispensing head is 20 dots per second.

3. The multi-channel high-speed dispensing device according to claim 1, characterized in that An upper beam is mounted above the machine platform. At least two plunger pumps are arranged on the upper beam. The inlet of the plunger pump is connected to a glue bucket, and a primary pressure reducing valve is arranged at the outlet of the plunger pump.

4. The multi-channel high-speed dispensing device according to claim 3, wherein, Each plunger pump is provided with at least two glue buckets, and an electromagnetic valve is arranged between each glue bucket and the plunger pump.

5. The multi-channel high-speed dispensing device according to claim 3, characterized in that, A double-layer bracket is mounted on the working platform. A set of glue hoses is laid on both the upper and lower layers of the double-layer bracket. The downstream ports of each glue hose are respectively connected to the dispensing heads. The upstream ports of each set of glue hoses are uniformly connected to a secondary manifold. The secondary manifold is provided with a number of secondary inlet interfaces. A secondary pressure reducing valve is connected to each secondary inlet interface. The secondary pressure reducing valves are uniformly connected to a primary manifold. The primary manifold has a primary inlet interface, and the primary inlet interface is connected to the primary pressure reducing valve.

6. The multi-channel high-speed dispensing device according to claim 5, wherein, There are two sets of glue hoses, with 5 glue hoses in each set, and there are 3 secondary inlet interfaces in total.

7. The multi-channel high-speed dispensing device according to claim 5, wherein Each glue hose is threaded through a drag chain. The drag chain is laid in the double-layer bracket. The secondary manifold and the primary manifold are symmetrically arranged on the left and right sides of the double-layer bracket respectively. The drag chain is divided into an upper drag chain and a lower drag chain, and the upper drag chain and the lower drag chain are arranged symmetrically in the reverse direction. The weights of the upper and lower parts of the double-layer bracket are balanced vertically and horizontally.

8. The multi-channel high-speed dispensing device according to claim 1, characterized in that, A rubber wiping platform matching the dispensing head is arranged at one end of the X-axis gear rack module slide on the machine platform. A dust-free cloth is arranged on the rubber wiping platform. The two ends of the dust-free cloth are wound on a material tray. The material tray is mounted on a hand expansion shaft and is drivingly connected to a traction motor.

9. The multi-channel high-speed dispensing device according to claim 8, wherein The bottom of the rubber wiping platform is mounted on a chassis, and the chassis is installed on an X-axis translation cylinder. The rubber wiping platform enters the travel range of the X-axis gear rack module slide through the X-axis translation cylinder and is adaptively connected to the dispensing head.

10. The multi-channel high-speed dispensing device according to claim 1, wherein, The machine platform is provided with a conveying roller line. A material tray is carried on the conveying roller line. The material tray is provided with a number of avoidance openings. A number of ejector pins are vertically arranged directly below the avoidance openings, and all the ejector pins are integrated on a pneumatic lifting platform. Left and right side baffles are arranged on both sides of the conveying roller line, and pulley groups are arranged on the left and right side baffles. Blocking cylinders respectively matching the two ends of the material tray are arranged in the conveying roller line. The blocking cylinders are installed on an X-axis telescopic cylinder for clamping and guiding. A vision positioning camera is arranged directly above the machine platform.

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