CN210666251U - Quick cooling pressure head on mobile phone display screen binding equipment - Google Patents
Quick cooling pressure head on mobile phone display screen binding equipment Download PDFInfo
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- CN210666251U CN210666251U CN201921827755.3U CN201921827755U CN210666251U CN 210666251 U CN210666251 U CN 210666251U CN 201921827755 U CN201921827755 U CN 201921827755U CN 210666251 U CN210666251 U CN 210666251U
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Abstract
The utility model belongs to the technical field of the mobile phone display screen makes, especially, be a quick cooling pressure head on mobile phone display screen nation equipment, including horizontal fixed bolster, bolt fixedly connected with cylinder is passed through to top one side of horizontal fixed bolster, and the top opposite side swing joint of horizontal fixed bolster has Z axle installing support, and the cylinder is located the front side of Z axle installing support, and two vertical fixed bolsters of bolt fixedly connected with are passed through to the bottom side of Z axle installing support, and the piston shaft of cylinder extends to the below and the fixedly connected with heat-generating body of horizontal fixed bolster, and the heat-generating body is located between two vertical fixed bolsters. The utility model provides a fast cooling pressure head possesses pollution-free rapid heating up, rapid cooling, quick accurate temperature control, pressure head and heats the characteristic such as the process disappearance infiltration explosion phenomenon repeatedly, has solved FPC electronic circuit bonding in-process and has withdrawn under the pressure head high temperature state and make the material take place to kick-back and cause electronic circuit contact and the bad problem of mechanical connection.
Description
Technical Field
The utility model relates to a mobile phone display makes technical field, especially relates to a fast cooling pressure head on mobile phone display screen bonding equipment.
Background
The bonding pressure head is widely applied to equipment for connecting a Liquid crystal Display Module (LCM) combination of a mobile phone screen with a bonding process; that is, a component for assembling other structural members such as a liquid crystal display, a driver Circuit, an FPC (Flexible Printed Circuit), a backlight, and the like. The mechanical connection and electrical conduction of the liquid crystal Glass, the driving circuit and the FPC in the liquid crystal display are core parts of LCM production, wherein the production process of the liquid crystal Glass and the FPC is an FOG (Film On Glass) bonding process, namely, the FPC is carried On a Glass panel; the ram is used by the processing equipment in the FOG bonding process, and the following is the basic flow of the process:
1. pre-pasting an ACF: pasting an ACF with a specified length at an ITO end of the liquid crystal glass or a pin needing to be bonded of the FPC;
2. pre-bonding: aligning pins of the FPC and the ITO end of the liquid crystal glass through an auxiliary image system on an FOG bonding machine, and prepressing to form preliminary connection;
3. main bonding: under higher temperature and pressure, the pre-bonded LCM product is subjected to main bonding, the electrical connection between the FPC and the liquid crystal glass is realized through the deformation of ACF conductive particles and the breakage of an insulating layer, and meanwhile, two different materials of the FPC and the liquid crystal glass are connected together through the polymerization hardening of ACF glue at high temperature to provide enough mechanical connection strength.
The full-automatic COG bonding machine mainly comprises three units of ACF (anisotropic conductive adhesive or anisotropic conductive film), prepressing and local pressing, wherein the local pressing unit is also called a local pressing bonding device and is used for completing the rear-end process of the display screen, namely the local pressing stage. Specifically, the ram of the present nip bonding apparatus is primarily responsible for providing a Z-axis motion that imparts about 150-300 Ν of force on the buffered silicone ribbon, which is in turn transmitted to the glass substrate and the IC.
If the circuit between the IC and the glass substrate is well communicated, in the stage of the pressure, the required temperature of the pressure head is as high as 200-420 ℃, the temperature of the heat insulation plate is rapidly increased, the heat can be transferred to parts on the upper part of the pressure head, the expansion coefficient of a product material is unstable under the heating state and the influence of the ambient temperature, and the product yield is directly improved.
The existing pressure head is used in the similar FOG bonding LCM product process, the opposite conductive adhesive and the OLED material are bonded, when the pressure head is used for bonding the product, the temperature of the pressure head is kept at a high temperature (such as 180-360 degrees), the pressure head is withdrawn in a hot state, and the material is not completely cooled. Therefore, after the material is heated, the material needs to be naturally cooled, the material of the product rebounds under the high-temperature strong state to cause poor contact of an electronic pin circuit, so that the circuit connection conduction strength and the adhesion force between the FPC and the liquid crystal glass are reduced, and the electrode pins of the FPC and the liquid crystal glass are induced to be open-circuited due to the particle condition, so that the LCM product bonded by the FOG process has serious potential quality hazards. The technical problem needs to be solved, and therefore a quick cooling pressure head on a mobile phone display bonding device is provided for solving the problem.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the shortcoming of the prior art, and the quick cooling pressure head on the mobile phone display screen bonding equipment who proposes.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a fast cooling pressure head on mobile phone display screen nation decides equipment, includes horizontal fixed bolster, bolt fixedly connected with cylinder is passed through to top one side of horizontal fixed bolster, the top opposite side swing joint of horizontal fixed bolster has the Z axle installing support, the cylinder is located the front side of Z axle installing support, two vertical fixed bolsters of bolt fixedly connected with are passed through to the bottom side of Z axle installing support, the piston shaft of cylinder extends to the below and the fixedly connected with heat-generating body of horizontal fixed bolster, the heat-generating body is located between two vertical fixed bolsters, and the same pressure head of bolt fixedly connected with is passed through to the bottom side of two vertical fixed bolsters, the bottom side of heat-generating body and the top side swing joint of pressure head, the front side fixedly connected with multiunit heating tube of heat-generating body, one side of pressure head is provided.
Preferably, the ceramic heat insulation ring is fixedly adhered to two sides of the bottom of the Z-axis mounting support, the bottom side of the ceramic heat insulation ring is fixedly adhered to the top side of the horizontal fixing support, and the ceramic heat insulation ring is used for reducing temperature transfer of upper parts during rapid heating of a pressure head.
Preferably, the top side of the heating element is fixedly connected with a heating separation support through a bolt, the top side of the heating separation support is fixedly connected to an output shaft of the cylinder through a bolt, and the heating separation support is used for installing a heating element connecting part component.
Preferably, both sides of the top of the heating separation support are fixedly connected with guide rods, the top ends of the guide rods extend to the inner side of the horizontal fixing support and are movably connected with the inner side of the horizontal fixing support, and the guide rods enable the heating body to ascend and descend smoothly.
Preferably, the central part of the front side of the pressure head is fixedly connected with a pressure head temperature sensor probe which is used for detecting the temperature change of the pressure head during use.
Preferably, the top of the front side of the heating body is fixedly connected with a plurality of heating temperature sensor probes, the heating temperature sensor probes are positioned above the heating tube, and the heating temperature sensor probes are used for detecting the temperature change of the pressure head during heating.
Preferably, the number of the heating tubes is eight, the eight heating tubes are equally divided into four groups and are arranged on the front side of the heating element at equal intervals, and the heating tubes are used for heating the heating element.
The utility model discloses in cell-phone display screen nation decides equipment on fast cooling pressure head possess following advantage:
1. the pollution-free rapid temperature rise of the pressure head is realized;
2. the rapid cooling of the pressure head is realized;
3. the rapid and accurate temperature control of the pressure head is realized;
4. the safety production is realized, the phenomena of water seepage, pipe explosion and the like can not occur in the repeated heating process of the pressure head, and the safety of production personnel is protected;
5. high-efficiency heating is realized, and energy consumption is saved on the premise of meeting the process requirements;
6. the defects of the prior art are perfectly overcome by accurately controlling the temperature;
the utility model provides a fast cooling pressure head possesses pollution-free rapid heating up, rapid cooling, quick accurate temperature control, pressure head and heats the characteristic such as the process disappearance infiltration explosion phenomenon repeatedly, has solved FPC electronic circuit bonding in-process and has withdrawn under the pressure head high temperature state and make the material take place to kick-back and cause electronic circuit contact and the bad problem of mechanical connection.
Drawings
Fig. 1 is a schematic structural view of a fast cooling pressure head on a bonding device for a mobile phone display screen according to the present invention;
fig. 2 is a side view of a fast cooling ram on a mobile phone display bonding apparatus according to the present invention;
fig. 3 is an exploded view of a fast cooling ram on a mobile phone display bonding apparatus according to the present invention;
fig. 4 is the utility model provides a pressure head and the schematic structure of cooling opening of the quick cooling pressure head on mobile phone display screen bonding equipment.
In the figure: 1. a cylinder; 2. a Z-axis mounting bracket; 3. a ceramic heat insulating ring; 4. horizontally fixing the bracket; 5. a guide bar; 6. a vertical fixing bracket; 7. a heating element; 8. a pressure head; 9. heating the temperature sensor probe; 10. a heat generating tube; 11. a ram temperature sensor probe; 12. heating the separation support; 13. and a cooling port.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-4, a fast cooling pressure head on a bonding device of a mobile phone display screen comprises a horizontal fixing support 4, one side of the top of the horizontal fixing support 4 is fixedly connected with a cylinder 1 through a bolt, the other side of the top of the horizontal fixing support 4 is movably connected with a Z-axis mounting support 2, the cylinder 1 is positioned at the front side of the Z-axis mounting support 2, the bottom side of the Z-axis mounting support 2 is fixedly connected with two vertical fixing supports 6 through bolts, a piston shaft of the cylinder 1 extends to the lower part of the horizontal fixing support 4 and is fixedly connected with a heating element 7, the heating element 7 is positioned between the two vertical fixing supports 6, and the bottom sides of the two vertical fixing supports 6 are fixedly connected with the same pressure head 8 through bolts, the bottom side of the heating body 7 is movably connected with the top side of the pressure head 8, the front side of the heating body 7 is fixedly connected with a plurality of groups of heating tubes 10, and one side of the pressure head 8 is provided with a cooling port 13.
The utility model discloses in, the equal fixed paste in bottom both sides of Z axle installing support 2 has the thermal-insulated circle of pottery 3, and the bottom side of the thermal-insulated circle of pottery 3 and the top side fixed bonding of horizontal fixed bolster 4, and the thermal-insulated circle of pottery 3 reduces the transmission of part temperature for pressure head 8 will heat fast in.
The utility model discloses in, bolt fixedly connected with heating separation support 12 is passed through to the top side of heat-generating body 7, and the top side of heating separation support 12 passes through bolt fixed connection on the output shaft of cylinder 1, and heating separation support 12 is used for installing heat-generating body 7 connecting portion component.
The utility model discloses in, the equal fixedly connected with guide arm 5 in top both sides of heating separation support 12, and the top of guide arm 5 extend to the inboard of horizontal fixed bolster 4 and with the inboard swing joint of horizontal fixed bolster 4, guide arm 5 makes heat-generating body 7 rise and descend more smoothly.
The utility model discloses in, pressure head 8's front side central part fixedly connected with pressure head temperature sensor probe 11, pressure head temperature sensor probe 11 is used for surveying the temperature variation when pressure head 8 uses.
The utility model discloses in, a plurality of heating temperature sensor probe 9 of front side top fixedly connected with of heat-generating body 7, heating temperature sensor probe 9 are located the top of heating tube 10, heating temperature sensor probe 9 with be used for surveying the temperature variation when pressure head 8 heats.
The utility model discloses in, the quantity of heating tube 10 is eight, and eight heating tubes 10 etc. divide into four groups and equidistant interval sets up the front side at heat-generating body 7, and heating tube 10 supplies with heat-generating body 7 and heats.
The cooling air refrigeration cooling pressure head of the utility model is arranged on a Z-axis pressing mechanism of bonding equipment and is used after being screwed, connected and fixed by 4M 6 screws; wherein, the setting mode and the effect of each part: when the cylinder 1 descends, the heating body 7 is tightly attached to the pressure head 8, the temperature of the heating body 7 is conducted to the pressure head 8, when the cylinder 1 ascends, the heating body 7 is separated from the pressure head 8, and the air flows into the cooling port 13 through an external cooling air refrigeration cooling device to enable the pressure head 8 to be rapidly cooled; the Z-axis mounting support 2 is used for connecting the pressure head mechanism with a Z-axis connecting block, the Z-axis mounting support 2 is made of Cr12 steel, and vacuum heat treatment is carried out, so that a workpiece cannot influence a bonding process due to deformation in use, and the workpiece is mainly connected with other components for installation; the ceramic heat insulation ring 3 is used for reducing the temperature transfer of upper parts in the process of rapidly heating the pressure head 8; the horizontal fixing support 4 and the vertical fixing support 6 are used for installing a connecting part component of the pressure head 8, and the material is Cr12 heat treatment; the guide rod 5 enables the heating body 7 to ascend and descend smoothly; eight heating tubes 10 are arranged on the heating body 7, and the temperature is accurately controlled by using the PID function of the intelligent digital temperature controller; the pressure head 8 is made of YG12X tungsten steel, and is subjected to vacuum heat treatment, so that the heating deformation of a workpiece can be ignored in use, the workpiece is mainly connected with the cooling pipe and the mounting component, the pressure head 8 is importantly located at the position of a pressure head knife edge, the surface smoothness reaches 0.4 mu m, and the parallelism reaches 0.001 mm; the heating temperature sensor probe 9 and the pressure head temperature sensor probe 11 are used for detecting the temperature change of the pressure head 8 during heating and use, and the process temperature change process is realized through PID adjustment of a temperature controller; the heating tube 10 is used for heating the heating body 7; the heating separation bracket 12 is used for installing a connecting component of the heating body 7 and is made of Cr12 heat treatment; the cooling port 13 is an inflow interface of the cooling air cooling device.
The utility model discloses in the working process and the control principle of pressure head that propose: starting up the pressure head 8 for preheating to enable the temperature to reach the process requirement temperature (160-280 ℃), starting the Z-axis mechanism to drive the pressure head 8 to bind when the temperature reaches a set value, enabling the mechanism above the pressure head 8 to vertically face downwards at a constant speed, indirectly pressing the pressure head 8 on a product through the buffer silica gel, keeping the mechanism still and keeping the temperature of the pressure head 8 stable within the process requirement range (such as 8-12 seconds); when the bonding time is up, the heating element 7 is separated from the pressure head 8, the cooling air refrigeration and temperature reduction device flows into the cooling pipe inside the pressure head main body, and the pressure head is rapidly cooled to the lower limit (70-110 ℃); for example, the use temperature of the pressure head 8 is 250 ℃ when the pressure head 8 is bonded, the utility model provides a novel pressure head 8 can fall between 70-100 ℃ in 5-10S, after the pressure head 8 cools off to the set temperature of inserting the line, the product bonding position part falls to product material design state temperature (70-100 ℃) equally, from the face reach the control material rise with cold shrinkage produce with the electronic circuit unstable condition to improve product quality purpose, then the pressure head 8 rises and returns the standby position, accomplishes one and binds the process.
Claims (7)
1. The utility model provides a fast cooling pressure head on mobile phone display screen bonding equipment, includes horizontal fixed bolster (4), its characterized in that, there is cylinder (1) top one side of horizontal fixed bolster (4) through bolt fixedly connected with, the top opposite side swing joint of horizontal fixed bolster (4) has Z axle installing support (2), cylinder (1) is located the front side of Z axle installing support (2), the bottom side of Z axle installing support (2) is through bolt fixedly connected with two vertical fixed bolsters (6), the piston shaft of cylinder (1) extends to the below of horizontal fixed bolster (4) and fixedly connected with heat-generating body (7), heat-generating body (7) are located between two vertical fixed bolsters (6), and the bottom side of two vertical fixed bolsters (6) is through the same pressure head (8) of bolt fixedly connected with, the bottom side of heat-generating body (7) and the top side swing joint of pressure head (8), the front side of the heating body (7) is fixedly connected with a plurality of groups of heating tubes (10), and one side of the pressure head (8) is provided with a cooling hole (13).
2. The quick cooling pressure head on bonding equipment for the display screen of the mobile phone according to claim 1, characterized in that the ceramic heat insulation ring (3) is fixedly adhered to both sides of the bottom of the Z-axis mounting bracket (2), and the bottom side of the ceramic heat insulation ring (3) is fixedly adhered to the top side of the horizontal fixing bracket (4).
3. The quick cooling pressure head on bonding equipment for the display screen of the mobile phone according to claim 1, characterized in that the top side of the heating body (7) is fixedly connected with a heating separation bracket (12) through a bolt, and the top side of the heating separation bracket (12) is fixedly connected to the output shaft of the cylinder (1) through a bolt.
4. The quick cooling pressure head on bonding equipment for the display screen of the mobile phone according to claim 3, characterized in that the guide rods (5) are fixedly connected to both sides of the top of the heating separation bracket (12), and the top ends of the guide rods (5) extend to the inner side of the horizontal fixing bracket (4) and are movably connected with the inner side of the horizontal fixing bracket (4).
5. The quick cooling pressure head on bonding equipment for the display screen of the mobile phone according to claim 1, characterized in that a pressure head temperature sensor probe (11) is fixedly connected to the central part of the front side of the pressure head (8).
6. The quick cooling pressure head on mobile phone display screen bonding equipment according to claim 1, characterized in that a plurality of heating temperature sensor probes (9) are fixedly connected to the top of the front side of the heating body (7), and the heating temperature sensor probes (9) are located above the heating tube (10).
7. The rapid cooling pressure head on the bonding equipment for the display screen of the mobile phone according to claim 1, characterized in that the number of the heating tubes (10) is eight, and the eight heating tubes (10) are equally divided into four groups and are arranged at the front side of the heating element (7) at equal intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921827755.3U CN210666251U (en) | 2019-10-29 | 2019-10-29 | Quick cooling pressure head on mobile phone display screen binding equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921827755.3U CN210666251U (en) | 2019-10-29 | 2019-10-29 | Quick cooling pressure head on mobile phone display screen binding equipment |
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| CN210666251U true CN210666251U (en) | 2020-06-02 |
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| CN201921827755.3U Active CN210666251U (en) | 2019-10-29 | 2019-10-29 | Quick cooling pressure head on mobile phone display screen binding equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112731693A (en) * | 2019-10-29 | 2021-04-30 | 东莞市华慧智能装备有限公司 | Quick cooling pressure head on mobile phone display screen binding equipment |
| CN113329563A (en) * | 2021-04-30 | 2021-08-31 | 东莞联鹏智能装备有限公司 | Bonding head, bonding device and forming method of cooling channel |
-
2019
- 2019-10-29 CN CN201921827755.3U patent/CN210666251U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112731693A (en) * | 2019-10-29 | 2021-04-30 | 东莞市华慧智能装备有限公司 | Quick cooling pressure head on mobile phone display screen binding equipment |
| CN113329563A (en) * | 2021-04-30 | 2021-08-31 | 东莞联鹏智能装备有限公司 | Bonding head, bonding device and forming method of cooling channel |
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