Tool for dispensing liquid crystal screen
By introducing a heat insulation cover and a heating mechanism into the LCD screen dispensing fixture, the problem of uneven dispensing quality caused by excessively rapid cooling of hot melt adhesive was solved, achieving higher quality dispensing results and reducing energy consumption.
Patent Information
- Application Number
- CN202423226234.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2034-12-25
AI Technical Summary
When using hot melt adhesive in existing LCD screen dispensing fixtures, the excessively fast solidification speed leads to inconsistent dispensing quality.
A heat insulation cover and a heating mechanism are introduced into the dispensing fixture. The heat insulation cover keeps the dispensed part warm, and the heating mechanism maintains the temperature inside the heat insulation cover. Combined with the circulation pipe, the residual heat is reused to reduce the cooling rate of the hot melt adhesive.
It improves the quality of dispensing, avoids inconsistent glue quality, and reduces the energy consumption of the equipment.
Smart Images
Figure CN223747965U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of dispensing tooling technology, specifically relating to a tooling for dispensing adhesive onto an LCD screen. Background Technology
[0002] During the production of LCD screens, a dispensing fixture is required to apply adhesive to the inside of the back cover of the LCD screen.
[0003] The existing dispensing fixture consists of a conveyor belt, a dispensing head, a gantry frame, and a lifting mechanism. The conveyor belt transports the back cover to the bottom of the gantry frame. At this time, the lifting mechanism drives the dispensing head to descend onto the back cover. The conveyor belt starts at this time. During this process, the dispensing head performs dispensing operation on the back cover simultaneously. However, the existing dispensing head generally dispenses hot melt adhesive. Because hot melt adhesive solidifies too quickly, the dispensing speed is slow, resulting in inconsistent quality of the molded adhesive, which affects the dispensing quality. Utility Model Content
[0004] The purpose of this invention is to provide a tooling for dispensing adhesive onto an LCD screen, in order to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a tooling for dispensing adhesive onto an LCD screen, comprising: a conveyor belt for conveying materials and a gantry frame spanning the conveyor belt, wherein the gantry frame is provided with a dispensing mechanism for dispensing adhesive onto the materials, and a heat insulation cover for heat preservation is provided on one side of the gantry frame, wherein, based on the conveying, a portion of the dispensed material enters the heat insulation cover during dispensing.
[0006] Preferably, the heat insulation cover is further provided with a heating mechanism for heating. The heating mechanism includes a heating box and multiple heating rods. The heating box is connected to the heat insulation cover, and the end of the heating box away from the heat insulation cover is open. Multiple heating rods are installed in the heating box at equal distances. A fan facing the multiple heating rods is provided in the open.
[0007] Preferably, the heat insulation cover is further provided with a circulation pipe for recycling waste heat. One end of the circulation pipe away from the heat insulation cover is connected to the heating box, and the end of the circulation pipe is located between the fan and multiple heating rods.
[0008] Preferably, the opening is further provided with a filter screen for filtration, and the filter screen is located on the outside of the motor.
[0009] Preferably, the heat insulation cover has openings on both symmetrical sides for material passage, and both openings are located in the direction of conveyor belt transport.
[0010] Preferably, the glue dispensing mechanism comprises a lifting plate, a plurality of glue dispensing heads and a glue guide pipe, the glue guide pipe is arranged on one side of the gantry, one end of the glue guide pipe is communicated with the plurality of glue dispensing heads respectively, the plurality of glue dispensing heads are installed on the bottom of the lifting plate in sequence at equal distances in the longitudinal direction, and at least part of the glue guide pipe is a flexible pipe.
[0011] Inner walls on the two symmetrical sides of the gantry are longitudinally provided with lifting grooves, both ends of the lifting plate are provided with lifting blocks which can be lifted in the lifting grooves on the two sides, and a cylinder for lifting is arranged between the top of the lifting plate and the gantry.
[0012] Compared with the prior art, the utility model has the following beneficial effects:
[0013] (1) The utility model discloses a heat preservation cover arranged on one side of the gantry, the heat preservation cover can heat the material that has been glued, the speed of cooling the hot melt adhesive is reduced, the glue dispensing quality is improved, and the quality of the glue is uniform.
[0014] (2) The utility model discloses a heating mechanism arranged on the heat preservation cover, which can introduce the heated gas into the heat preservation cover, so that the temperature in the heat preservation cover is always kept in a certain range, and the speed of cooling the hot melt adhesive is further reduced.
[0015] (3) The utility model discloses a circulating pipe, the high-temperature gas in the heat preservation cover can be reused through the circulating pipe, and the energy consumption of the equipment is reduced. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is a side view of the utility model;
[0017] Figure 2 It is a sectional view of the utility model;
[0018] Figure 3 It is a structural schematic view of the gantry and the lifting plate of the utility model;
[0019] In the drawing: 1, conveying belt; 2, gantry; 3, glue guide pipe; 4, cylinder; 5, heat preservation cover; 6, heating box; 7, circulating pipe; 8, heating rod; 9, fan; 10, filter screen; 11, lifting groove; 12, glue dispensing head; 13, lifting plate; 14, opening; 15, lifting block. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0021] Referring to Figures 1-2 As shown in the utility model provides a kind of liquid crystal screen dispensing tool, comprising: the conveying belt 1 of conveying material and the portal frame 2 of being installed across on conveying belt 1, the dispensing mechanism for dispensing material is equipped on portal frame 2, one side of portal frame 2 is equipped with the heat preservation cover 5 for heat preservation, based on conveying part dispensing material after part dispensing enters heat preservation cover 5 when dispensing.
[0022] Combined with Figure 2 As shown, the heat preservation cover 5 is symmetrically provided with the opening 14 for material passing, and the two openings 14 are arranged in the direction of conveying belt 1 conveying.
[0023] Above, using the conveying belt 1, portal frame 2, dispensing mechanism and heat preservation cover 5 provided by the utility model, the dispensing mechanism is arranged on one side of heat preservation cover 5 by portal frame 2, when conveying belt 1 carries material through portal frame 2, the passing material is dispensed by dispensing mechanism, and the material on the part position is dispensed directly into heat preservation cover 5 under the conveying of conveying belt, to reduce the cooling speed of hot melt adhesive on the material.
[0024] In the utility model, combined with Figure 2 As shown, the heat preservation cover 5 of the embodiment is further provided with a heating mechanism for heating, the heating mechanism comprises a heating box 6 and a plurality of heating rods 8, the heating box 6 is connected and arranged on the heat preservation cover 5, and the end of the heating box 6 away from the heat preservation cover 5 is open, the plurality of heating rods 8 are installed at equal distances in the heating box 6, and a fan 9 is arranged in the opening and faces the plurality of heating rods 8.
[0025] Above, using the heating mechanism provided by the utility model, the heating box 6 in the heating mechanism provides installation position for the heating rod 8, the fan 9 is started, the external gas enters the inside of the heating box 6 through the opening, and the gas passes through the heated heating rod 8, in the process, the gas is heated and enters the heat preservation cover 5, so that the heat preservation cover 5 is always kept within a certain temperature range.
[0026] Further, in order to reduce the energy consumption of equipment, referring to Figure 2 As shown, the heat preservation cover 5 is further provided with a circulation pipe 7 for recycling waste heat, one end of the circulation pipe 7 away from the heat preservation cover 5 is connected and arranged on the heating box 6, and the end of the circulation pipe 7 is arranged between the fan 9 and the plurality of heating rods 8. Through the circulation pipe 7, the waste heat in the heat preservation cover 5 can be reused, and a temperature sensor can be additionally arranged at the heating rod 8, which is not shown in the figure, so that the heating rod 8 can be adjusted in temperature with the change of temperature, to avoid that the heating rod 8 is always in a heating state.
[0027] Further, in order to avoid external dust from entering the heat preservation cover 5 and improve the cleanliness of dispensing, referring toFigure 2 As shown, the opening is also provided with a filter screen 10 for filtering, and the filter screen 10 is arranged outside the motor. The gas entering the heating box 6 can be filtered through the filter screen 10, so as to avoid dust entering the heating box 6, and further avoid dust entering the protective cover.
[0028] In the present application, combined with Figures 2-3 As shown, the dispensing mechanism of the embodiment comprises a lifting plate 13, a plurality of dispensing heads 12 and a glue guide pipe 3, the glue guide pipe 3 is arranged on one side of the gantry 2, one end of the glue guide pipe 3 is communicated with the plurality of dispensing heads 12 respectively, the plurality of dispensing heads 12 are installed on the bottom of the lifting plate 13 in sequence at equal distances in the longitudinal direction, and at least part of the glue guide pipe 3 is a hose.
[0029] The inner walls of the symmetrical two sides of the gantry 2 are both longitudinally provided with lifting grooves 11, the two ends of the lifting plate 13 are both provided with lifting blocks 15 which can be lifted in the two lifting grooves 11, and a cylinder 4 for lifting is arranged between the top of the lifting plate 13 and the gantry 2.
[0030] In the above, in the use of the dispensing mechanism provided by the present application, the lifting plate 13 in the dispensing mechanism provides mounting positions for the plurality of dispensing heads 12, the lifting plate 13 is driven to rise and fall on the gantry 2 by the cylinder 4, so as to conveniently make the dispensing heads 12 fall to the dispensing position above the material, in this process, the lifting of the lifting plate 13 is guided by the lifting grooves 11 and the lifting blocks 15, the plurality of dispensing heads 12 are provided with hot melt glue in a molten state by the glue guide pipe 3, and the lifting of the lifting plate 13 is avoided from being interfered by the glue guide pipe 3 by the hose.
[0031] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A tooling for dispensing adhesive onto an LCD screen, characterized in that, The application relates to a conveying belt (1) for conveying materials and a portal frame (2) installed across the conveying belt (1), wherein the portal frame (2) is provided with a dispensing mechanism for dispensing materials, one side of the portal frame (2) is provided with a heat preservation cover (5) for heat preservation, part of the materials dispensed enter the heat preservation cover (5) during dispensing, the heat preservation cover (5) is further provided with a heating mechanism for heating, the heating mechanism comprises a heating box (6) and a plurality of heating rods (8), the heating box (6) is connected to the heat preservation cover (5), one end of the heating box (6) away from the heat preservation cover (5) is open, the plurality of heating rods (8) are equidistantly arranged in the heating box (6), a fan (9) is arranged in the opening and faces the plurality of heating rods (8), the heat preservation cover (5) is further provided with a circulation pipe (7) for recycling waste heat, one end of the circulation pipe (7) away from the heat preservation cover (5) is connected to the heating box (6), and the end of the circulation pipe (7) is arranged between the fan (9) and the plurality of heating rods (8). The opening is further provided with a filter screen (10) for filtering, and the filter screen (10) is arranged outside the motor.
2. The tooling for dispensing liquid crystal display according to claim 1, wherein: The heat preservation cover (5) is symmetrically provided with two openings (14) for the materials to pass through, and the two openings (14) are arranged in the conveying direction of the conveying belt (1).
3. The tooling for dispensing liquid crystal display according to claim 1, wherein: The dispensing mechanism comprises a lifting plate (13), a plurality of dispensing heads (12) and a glue guide pipe (3), the glue guide pipe (3) is arranged on one side of the portal frame (2), one end of the glue guide pipe (3) is connected to the plurality of dispensing heads (12) respectively, the plurality of dispensing heads (12) are equidistantly arranged on the bottom of the lifting plate (13) in sequence in the vertical direction, and at least part of the glue guide pipe (3) is a flexible pipe.
4. The tooling for dispensing liquid crystal display according to claim 1, wherein: The inner walls of the two symmetrical sides of the portal frame (2) are longitudinally provided with lifting grooves (11), the two ends of the lifting plate (13) are provided with lifting blocks (15) which can be lifted in the two lifting grooves (11), and a pneumatic cylinder (4) for lifting is arranged between the top of the lifting plate (13) and the portal frame (2).