Light guide plate screen printing machine

Abstract

A limiting shell is arranged between a template mounting plate and side supporting plates of the light guide plate screen printing machine, the inner wall of the limiting shell is connected with the lower ends of the side supporting plates through a plurality of springs, and a plurality of inserting holes are formed in the two side supporting plates correspondingly; inserting pins correspondingly matched with the inserting holes are fixed to the top ends of the two side supports correspondingly, a second sliding rail is arranged below the formwork mounting plate, sliding strips are slidably connected to the two opposite inner walls of the second sliding rail correspondingly, and a placement bottom frame is fixedly connected between the two sliding strips. A barrier strip is arranged in the middle of the placement bottom frame and perpendicular to the length direction of the placement bottom frame, and a first mounting plate with a first sinking groove and a second mounting plate with a second sinking groove are arranged on the front side and the rear side of the barrier strip respectively. According to the invention, the dismounting space of the template is enlarged, the template is convenient to dismount and mount by personnel, and the dismounting and mounting time of the light guide plate and the template is greatly saved, so that the overall production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of screen printers, and in particular to a light guide plate screen printer. Background Art

[0002] Acrylic light guide plate is a very common material used in lamps. Optical-grade acrylic or PC is used to stamp or print light guide points on the surface of the material. When the LED lamp beads installed on the side illuminate the light guide points, refraction or diffuse refraction will occur, causing the light to be emitted from the front of the light guide plate. At present, the application of light guide plates is commonly seen in LCD backlight sources, medical X-ray viewers, flat-panel lighting, ultra-thin advertising light boxes, luminous signboards, etc. Screen printing refers to printing dots on the reflective surface of the acrylic light guide plate after the shape processing is completed. It is a kind of dot attached to the surface of the material.

[0003] The existing screen printing machine structure will install the template and then the light guide plate, then push the light guide plate into or transfer it to the printing station for printing. After printing, the light guide plate will be taken out for disassembly, and the unprinted light guide plate will be installed. After installation, it will be pushed into the printing station and the cycle will be repeated. However, the light guide plate template in the prior art is generally provided with a fixing device above it to fix it, and the operating space is small, resulting in a lot of time for personnel to replace the template, which is inefficient. Moreover, when the light guide plate is printing, the installation and disassembly of the light guide plate also takes a lot of time, resulting in low production efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide a light guide plate screen printing machine, which can simultaneously dismantle and install the light guide plate on one side while printing the light guide plate on the other side, and also expands the disassembly space of the template, making it convenient for personnel to dismantle and install the template, greatly saving the time for disassembly and installation of the light guide plate and the template, thereby improving the overall production efficiency.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a light guide plate screen printing machine, comprising: a base, a side bracket is fixedly installed on the left and right sides of the top of the base respectively, a template mounting plate for template mounting is arranged between the two side brackets, a side support plate is arranged on the top of the template mounting plate and oppositely, a gas rod for pushing the template mounting plate is arranged on the opposite sides of the two side support plates and between the side bracket and the template mounting plate, a slide rail with a slider connected to the outer wall slidably arranged around the outer wall is arranged between the two side support plates, a scraper is fixedly connected to the slider, and the template is located between the scraper and the template mounting plate; A limit housing is provided between the template mounting plate and the side support plate, the limit housing is movably sleeved with the side support plate, and the inner wall of the limit housing and the lower end of the side support plate are connected by a plurality of springs, a plurality of sockets are respectively provided on the two side support plates, and the top ends of the two side brackets are respectively fixed with pins corresponding to the sockets; A second slide rail is arranged below the template mounting plate, and two inner walls opposite to the second slide rail are slidably connected with a slide bar respectively, and a mounting base is fixedly connected between the two slide bars, and a baffle is arranged in the middle of the mounting base and perpendicular to the length direction of the mounting base, and a first mounting plate with a first sinking groove and a second mounting plate with a second sinking groove are respectively arranged on the front and rear sides of the baffle, and the first sinking groove and the second sinking groove are both used for embedded installation of the light guide plate.

[0006] The further improved scheme in the above technical scheme is as follows: 1. In the above scheme, a connecting plate is installed on the front and rear sides of the template mounting plate respectively, and a support plate with a plurality of oblique mounting holes is fixedly installed on the top of the connecting plate. The oblique mounting holes are arranged at intervals along the length direction of the support plate, and the oblique mounting holes are provided for a high-pressure nozzle to be embedded and installed, so that the high-pressure nozzles on the front and rear sides are distributed back to back.

[0007] 2. In the above solution, the high-pressure nozzles located on the same side are commonly connected to a ventilation pipe, and the air inlet end of the ventilation pipe is connected to a fan.

[0008] 3. In the above solution, an electrostatic adsorption plate is attached to the lower surface of the support plate.

[0009] 4. In the above scheme, a through hole is respectively opened at both ends of the connecting plate, and a push rod is inserted into the through hole. The upper end of the push rod is fixedly connected to the support plate, and a second spring is located between the lower end of the push rod and the connecting plate and is mounted on the circumferential outer wall of the push rod.

[0010] 5. In the above scheme, a first limit rod is symmetrically arranged on the top of the template mounting plate and about the gas rod, a first limit hole for the first limit rod to pass through is opened on the top of the side bracket, and a third spring is located between the side bracket and the template mounting plate and is mounted on the circumferential outer wall of the first limit rod.

[0011] 6. In the above solution, a plurality of second limiting rods are respectively arranged on the opposite sides of the two limiting shells, and a second limiting hole for the second limiting rods to be inserted is opened on the template mounting plate.

[0012] 7. In the above solution, a positioner is arranged on the opposite sides of the two slide bars, and a detection head corresponding to the positioner is arranged on the second slide rail.

[0013] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: 1. The light guide plate screen printing machine of the present invention has a template located between a scraper and a template mounting plate, a second slide rail is arranged below the template mounting plate, a stop bar is arranged in the middle of the mounting base and perpendicular to the length direction of the mounting base, a first mounting plate with a first sink groove and a second mounting plate with a second sink groove are arranged on the front and rear sides of the stop bar, respectively, the first sink groove and the second sink groove are used for embedding and installing the light guide plate, the template mounting plate is driven down by the gas rod, and the scraper is controlled to move along the slide rail, so that the printing of the light guide plate can be realized, the mounting base can drive the light guide plate on one side of the stop bar to move to the printing station along the direction of the second slide rail, and the light guide plate on one side is carried out While printing, the light guide plate can be disassembled and installed on the other side simultaneously, which greatly saves the time required for installing the light guide plate and further improves work efficiency; in addition, the limit shell and the side support plate are movably connected, and the inner wall of the limit shell and the lower end of the side support plate are connected by a number of springs, and a number of sockets are respectively provided on the two side support plates, and the tops of the two side brackets are respectively fixed with pins corresponding to the sockets. Through the cooperation of the pins on the top of the side bracket and the sockets of the side support plate, the distance between the scraper and the template mounting plate can be expanded, thereby expanding the operating space for personnel, making it easier for personnel to remove the template from the template mounting plate, greatly improving the convenience of personnel operation.

[0014] 2. The light guide plate screen printing machine of the present invention has a connecting plate installed on the front and rear sides of the template mounting plate respectively, and a support plate with a plurality of oblique mounting holes is fixedly installed on the top of the connecting plate. The oblique mounting holes are arranged at intervals along the length direction of the support plate, and the oblique mounting holes are provided for a high-pressure nozzle to be embedded and installed, so that the high-pressure nozzles on the front and rear sides are distributed back to back. During the transmission process of the light guide plate, the surface of the light guide plate is blown by the high-pressure nozzle to blow away the floating dust on the surface of the light guide plate, which is beneficial to improve the cleanliness of the surface of the light guide plate, thereby improving the printing effect of the light guide plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Attached Figure 1 It is a schematic diagram of the overall structure of the light guide plate screen printer of the present invention; Attached Figure 2 The partial structure of the light guide plate screen printer of the present invention is schematically decomposed Figure 1 ; Attached Figure 3 It is a partial cross-sectional structural schematic diagram of the light guide plate screen printer of the present invention; Attached Figure 4The partial structure of the light guide plate screen printer of the present invention is schematically decomposed Figure 2 ; Attached Figure 5 The partial structure of the light guide plate screen printer of the present invention is schematically decomposed Figure 3 .

[0016] In the above drawings: 1, base; 2, stop bar; 3, light guide plate; 41, first sink; 42, second sink; 5, side bracket; 6, first limit rod; 7, side support plate; 8, slide rail; 9, slider; 10, scraper; 11, second slide rail; 12, detection head; 13, slide bar; 14, positioner; 15, template; 16, template mounting plate; 17, gas rod; 18, through hole; 19, first limit hole; 20, third spring; 21, The second limiting hole; 221, the first mounting plate; 222, the second mounting plate; 202, the latch; 203, the socket; 204, the spring; 205, the limiting shell; 206, the second limiting rod; 207, the mounting base; 401, the high-pressure nozzle; 402, the ventilation pipe; 403, the fan; 404, the oblique mounting hole; 405, the support plate; 406, the second spring; 407, the push rod; 408, the connecting plate; 409, the electrostatic adsorption plate. Implementation

[0017] The present invention can be further understood through the specific embodiments given below, but they are not intended to limit the present invention.

[0018] Embodiment 1: A light guide plate screen printer, comprising: a base 1, a side bracket 5 is fixedly installed on the left and right sides of the top of the base 1 respectively, a template mounting plate 16 for mounting a template 15 is arranged between the two side brackets 5, a side support plate 7 is arranged on the top of the template mounting plate 16 and oppositely, a gas rod 17 for pushing the template mounting plate 16 is arranged on the opposite sides of the two side support plates 7 and between the side bracket 5 and the template mounting plate 16, a slide rail 8 with a slider 9 slidably connected to the outer wall is arranged between the two side support plates 7, a scraper 10 is fixedly connected to the slider 9, and the template 15 is located between the scraper 10 and the template mounting plate 16; A limit housing 205 is provided between the template mounting plate 16 and the side support plate 7, and the limit housing 205 is movably sleeved with the side support plate 7, and a plurality of springs 204 are connected between the inner wall of the limit housing 205 and the lower end of the side support plate 7, and a plurality of plug holes 203 are respectively provided on the two side support plates 7, and the top ends of the two side brackets 5 are respectively fixed with latches 202 corresponding to the plug holes 203; Since the template is clamped on the template mounting plate, when the template needs to be replaced synchronously, the pin is inserted into the socket in the non-printing state, and then the template mounting plate is controlled to be pressed down. During this process, the spring is deformed and drives the scraper to separate from the template, thereby facilitating the replacement operation and reducing the difficulty of replacement; A second slide rail 11 is arranged below the template mounting plate 16, and two opposite inner walls of the second slide rail 11 are slidably connected with a slide bar 13 respectively, and a mounting base 207 is fixedly connected between the two slide bars 13, and a baffle bar 2 is arranged in the middle of the mounting base 207 and perpendicular to the length direction of the mounting base 207, and a first mounting plate 221 with a first sink groove 41 and a second mounting plate 222 with a second sink groove 42 are respectively arranged on the front and rear sides of the baffle bar 2, and the first sink groove 41 and the second sink groove 42 are both used for embedded installation of the light guide plate.

[0019] Since the mounting base can simultaneously mount two light guide plates, and can drive the two light guide plates to move to the printing station along the direction of the second slide rail, during the movement, the positioners at different positions are detected by the detection head, so as to achieve the stop and transmission at the specific position of the second slide rail. Under this structure, the time required for installing the light guide plate can be saved, and the operation of installing the light guide plate on the other side can be realized while printing, thereby further improving the work efficiency; A connecting plate 408 is installed on the front and rear sides of the template mounting plate 16, respectively. A support plate 405 having a plurality of oblique mounting holes 404 is fixedly installed on the top of the connecting plate 408. The oblique mounting holes 404 are arranged at intervals along the length direction of the support plate 405, and the oblique mounting holes 404 are provided for a high-pressure nozzle 401 to be embedded and installed, so that the high-pressure nozzles 401 on the front and rear sides are arranged opposite to each other. When the light guide plate is moving, the fan supplies air to multiple high-pressure nozzles to obliquely flush the surface of the light guide plate in transit, so that the floating dust on the surface of the light guide plate is blown away and adsorbed by the electrostatic adsorption plate, thereby achieving a dust cleaning effect and preventing the presence of floating dust from affecting the printing results. The high-pressure nozzles 401 located on the same side are commonly connected to a ventilation pipe 402, and the air inlet end of the ventilation pipe 402 is connected to a fan 403; an electrostatic adsorption plate 409 is attached to the lower surface of the support plate 405; a through hole 18 is respectively provided at both ends of the connecting plate 408, and a push rod 407 is plugged into the through hole 18, and the upper end of the push rod 407 is fixedly connected to the support plate 405, and a second spring 406 is located between the lower end of the push rod 407 and the connecting plate 408 and is sleeved on the circumferential outer wall of the push rod 407.

[0020] At the same time, through the setting of the push rod, when pressing down to print, the push rod presses on the top of the mounting base, compresses the second spring, and lifts the support plate, thereby continuously maintaining the working distance between the electrostatic adsorption plate and multiple high-pressure nozzles to ensure the cleaning effect.

[0021] A first limiting rod 6 is symmetrically arranged on the top of the above-mentioned template mounting plate 16 and about the gas rod 17. A first limiting hole 19 for the first limiting rod 6 to pass through is opened on the top of the side bracket 5. A third spring 20 is located between the side bracket 5 and the template mounting plate 16 and is mounted on the circumferential outer wall of the first limiting rod 6.

[0022] A plurality of second limiting rods 206 are respectively disposed on the opposite sides of the two limiting housings 205 , and a second limiting hole 21 for the second limiting rods 206 to be inserted is opened on the template mounting plate 16 .

[0023] The second limiting rods 206 are located at opposite sides of the two first limiting rods 6 and are symmetrically distributed with respect to the gas rod 17 .

[0024] Embodiment 2: A light guide plate screen printer, comprising: a base 1, a side bracket 5 is fixedly installed on the left and right sides of the top of the base 1 respectively, a template mounting plate 16 for mounting a template 15 is arranged between the two side brackets 5, a side support plate 7 is arranged on the top of the template mounting plate 16 and oppositely, a gas rod 17 for pushing the template mounting plate 16 is arranged on the opposite sides of the two side support plates 7 and between the side bracket 5 and the template mounting plate 16, a slide rail 8 with a slider 9 slidably connected to the outer wall is arranged between the two side support plates 7, a scraper 10 is fixedly connected to the slider 9, and the template 15 is located between the scraper 10 and the template mounting plate 16; A limit housing 205 is provided between the template mounting plate 16 and the side support plate 7, and the limit housing 205 is movably sleeved with the side support plate 7, and a plurality of springs 204 are connected between the inner wall of the limit housing 205 and the lower end of the side support plate 7, and a plurality of plug holes 203 are respectively provided on the two side support plates 7, and the top ends of the two side brackets 5 are respectively fixed with latches 202 corresponding to the plug holes 203; Through the cooperation between the latch on the top of the side bracket and the socket on the side support plate, the distance between the scraper and the template mounting plate can be expanded, thereby expanding the operating space for personnel, making it easier for personnel to remove the template from the template mounting plate, and greatly improving the convenience of personnel operation; A second slide rail 11 is arranged below the template mounting plate 16, and two opposite inner walls of the second slide rail 11 are slidably connected with a slide bar 13 respectively, and a mounting base 207 is fixedly connected between the two slide bars 13, and a baffle bar 2 is arranged in the middle of the mounting base 207 and perpendicular to the length direction of the mounting base 207, and a first mounting plate 221 with a first sink groove 41 and a second mounting plate 222 with a second sink groove 42 are respectively arranged on the front and rear sides of the baffle bar 2, and the first sink groove 41 and the second sink groove 42 are both used for embedded installation of the light guide plate.

[0025] The template mounting plate is driven down by the gas rod, and the scraper is controlled to move along the slide rail, so that the printing of the light guide plate can be realized. The mounting base can drive the light guide plate on one side of the baffle to move to the printing station along the direction of the second slide rail. While the light guide plate on one side is being printed, the light guide plate on the other side can be disassembled and installed simultaneously, which greatly saves the time required for installing the light guide plate and further improves work efficiency.

[0026] A connecting plate 408 is installed on the front and rear sides of the template mounting plate 16, respectively. A support plate 405 having a plurality of oblique mounting holes 404 is fixedly installed on the top of the connecting plate 408. The oblique mounting holes 404 are arranged at intervals along the length direction of the support plate 405, and the oblique mounting holes 404 are provided for a high-pressure nozzle 401 to be embedded and installed, so that the high-pressure nozzles 401 on the front and rear sides are arranged opposite to each other. During the transmission of the light guide plate, the surface of the light guide plate is blown by a high-pressure nozzle to disperse the floating dust on the surface of the light guide plate, which is beneficial to improving the cleanliness of the surface of the light guide plate, thereby improving the printing effect of the light guide plate.

[0027] The high-pressure nozzles 401 on the same side are connected to a ventilation pipe 402 , and the air inlet end of the ventilation pipe 402 is connected to a fan 403 ; an electrostatic adsorption plate 409 is attached to the lower surface of the support plate 405 .

[0028] The lower surface of the support plate 405 is an inclined surface.

[0029] A first limiting rod 6 is symmetrically arranged on the top of the above-mentioned template mounting plate 16 and about the gas rod 17. A first limiting hole 19 for the first limiting rod 6 to pass through is opened on the top of the side bracket 5. A third spring 20 is located between the side bracket 5 and the template mounting plate 16 and is mounted on the circumferential outer wall of the first limiting rod 6.

[0030] A plurality of second limiting rods 206 are respectively disposed on the opposite sides of the two limiting housings 205 , and a second limiting hole 21 for the second limiting rods 206 to be inserted is opened on the template mounting plate 16 .

[0031] A locator 14 is arranged on the opposite sides of the two slide bars 13, and a detection head 12 corresponding to the locator 14 is arranged on the second slide rail 11; two of the above-mentioned locators 14 are arranged on the same side of the above-mentioned slide bar 13, one of the locators 14 is located on the central axis of the baffle bar 2, and the other is arranged near the end of the slide bar 13.

[0032] Here’s how it works: When in use, the mounting base can simultaneously mount two light guide plates, and can drive the two light guide plates to move to the printing station along the direction of the second slide rail. During the movement, the positioners at different positions are detected by the detection head, so as to stop and transfer at a specific position of the second slide rail. Under this structure, the time required for installing the light guide plate can be saved, and the operation of installing the light guide plate on the other side can be realized while printing, thereby further improving work efficiency. Since the template is clamped on the template mounting plate, when the template needs to be replaced synchronously, the pin is inserted into the socket in the non-printing state, and then the template mounting plate is controlled to be pressed down. During this process, the spring is deformed and drives the scraper to separate from the template, thereby facilitating the replacement operation and reducing the difficulty of replacement; When the light guide plate is moving, air is supplied to multiple high-pressure nozzles through the fan, which obliquely flushes the surface of the light guide plate in transportation, so that the floating dust on the surface of the light guide plate is blown away and adsorbed under the action of the electrostatic adsorption plate, thereby achieving a dust cleaning effect and preventing the presence of floating dust from affecting the printing results. At the same time, through the setting of the resistance rod, when pressing down to print, the resistance rod presses on the top of the mounting base, compresses the second spring, and lifts the support plate, thereby continuously maintaining the working distance between the electrostatic adsorption plate and multiple high-pressure nozzles to ensure its dust cleaning effect.

[0033] When the above-mentioned light guide plate screen printing machine is used, the template mounting plate is driven to descend by the gas rod, and the scraper is controlled to move along the slide rail, so that the printing of the light guide plate can be realized. The mounting base can drive the light guide plate on one side of the baffle to move to the printing station along the direction of the second slide rail. While the light guide plate on one side is being printed, the light guide plate on the other side can be disassembled and installed simultaneously, which greatly saves the time required for installing the light guide plate and further improves work efficiency. The pin on the top of the side bracket cooperates with the socket of the side support plate to expand the distance between the scraper and the template mounting plate, thereby expanding the operating space for personnel, making it easier for personnel to remove the template from the template mounting plate, greatly improving the convenience of personnel operation.

[0034] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A light guide plate screen printer, comprising: A base (1), characterized in that: a side bracket (5) is fixedly installed on the left and right sides of the top of the base (1), a template mounting plate (16) for mounting a template (15) is arranged between the two side brackets (5), a side support plate (7) is arranged on the top of the template mounting plate (16) and opposite to it, a gas rod (17) for pushing the template mounting plate (16) is arranged on the opposite sides of the two side support plates (7) and between the side bracket (5) and the template mounting plate (16), a slide rail (8) slidably connected to a slider (9) on the outer wall is arranged between the two side support plates (7), the slider (9) is fixedly connected to a scraper (10), and the template (15) is located between the scraper (10) and the template mounting plate (16); A limit housing (205) is provided between the template mounting plate (16) and the side support plate (7), the limit housing (205) is movably sleeved with the side support plate (7), and a plurality of springs (204) are connected between the inner wall of the limit housing (205) and the lower end of the side support plate (7), a plurality of plug holes (203) are respectively provided on the two side support plates (7), and pins (202) corresponding to the plug holes (203) are respectively fixed to the top ends of the two side brackets (5); A second slide rail (11) is arranged below the template mounting plate (16); two inner walls opposite to each other of the second slide rail (11) are slidably connected to a slide bar (13), and a mounting base frame (207) is fixedly connected between the two slide bars (13); a stop bar (2) is arranged in the middle of the mounting base frame (207) and perpendicular to the length direction of the mounting base frame (207); a first mounting plate (221) having a first recessed groove (41) and a second mounting plate (222) having a second recessed groove (42) are arranged on the front and rear sides of the stop bar (2), respectively; the first recessed groove (41) and the second recessed groove (42) are both used for embedding and mounting the light guide plate.

2. The light guide plate screen printer according to claim 1, characterized in that: A connecting plate (408) is installed on the front and rear sides of the template installation plate (16), respectively. A support plate (405) having a plurality of oblique installation holes (404) is fixedly installed on the top of the connecting plate (408). The oblique installation holes (404) are arranged at intervals along the length direction of the support plate (405), and the oblique installation holes (404) are provided for a high-pressure nozzle (401) to be embedded and installed, so that the high-pressure nozzles (401) on the front and rear sides are arranged opposite to each other.

3. The light guide plate screen printer according to claim 2, characterized in that: The high-pressure nozzles (401) located on the same side are commonly connected to a ventilation pipe (402), and the air inlet end of the ventilation pipe (402) is connected to a fan (403).

4. The light guide plate screen printer according to claim 2, characterized in that: An electrostatic adsorption plate (409) is attached to the lower surface of the support plate (405).

5. The light guide plate screen printer according to claim 2, characterized in that: A through hole (18) is respectively provided at both ends of the connecting plate (408), and a push rod (407) is inserted into the through hole (18). The upper end of the push rod (407) is fixedly connected to the support plate (405). A second spring (406) is located between the lower end of the push rod (407) and the connecting plate (408) and is sleeved on the circumferential outer wall of the push rod (407).

6. The light guide plate screen printer according to claim 1, characterized in that: A first limiting rod (6) is symmetrically arranged on the top of the template mounting plate (16) and about the gas rod (17); a first limiting hole (19) for the first limiting rod (6) to pass through is opened on the top of the side bracket (5); and a third spring (20) is located between the side bracket (5) and the template mounting plate (16) and is sleeved on the circumferential outer wall of the first limiting rod (6).

7. The light guide plate screen printer according to claim 1 or 6, characterized in that: A plurality of second limiting rods (206) are respectively arranged on opposite sides of the two limiting shells (205), and a second limiting hole (21) for the second limiting rods (206) to be inserted is opened on the template installation plate (16).

8. The light guide plate screen printer according to claim 1, characterized in that: A locator (14) is arranged on opposite sides of the two slide bars (13), and a detection head (12) corresponding to the locator (14) is arranged on the second slide rail (11).

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