Heating and pressing device

Abstract

The present invention relates to a heating and pressurizing device, comprising a conveying device arranged in parallel on a bottom plate, and at least one group of heating and pressurizing devices arranged on the bottom plate and arranged in parallel in sequence along the conveying device; the heating and pressurizing device comprises a lower cavity mechanism movably mounted on the bottom plate along a feeding guide rail and an upper cavity mechanism movably mounted on the bottom plate through a lifting cylinder, and the upper cavity mechanism comprises a height adjustment module, a pressurizing module and a distance sensor. The heating and pressurizing device provided by the present invention can heat and pressurize an optical film on the lower cavity mechanism by controlling the lifting height of the upper cavity mechanism, thereby improving production efficiency.

Description

Technical Field

[0001] The invention relates to the field of film pasting processing devices, and in particular to a heating and pressurizing device. Background Art

[0002] With the progress of society and the rapid development of science and technology, people's living standards and quality of life are constantly improving. People have higher and higher quality requirements for electronic products such as mobile phones and computers, and the demand is increasing. Electronic products are becoming an important and indispensable role in people's daily lives. Therefore, the automation of mechanical production of electronic products is an inevitable development trend.

[0003] The commonly used equipment on the market needs to heat and pressurize the product after the film-laminating process is completed so that the optical film can be tightly attached to the surface of the product. The working principle of the current heating equipment is to directly send the product into a confined space, and then control the contact between the upper and lower heating plates to complete the pressurization in the confined space and the heating and attachment of the product and the film. The existing equipment at that time was easily damaged due to the fixed stroke, and could not be reasonably adjusted for different products and processing conditions, and the equipment had low versatility. Summary of the invention

[0004] The purpose of the present invention is to provide a heating and pressurizing device which can solve the problems that the existing equipment is not universal and cannot be adjusted according to the product and processing conditions.

[0005] The technical solution of the present invention is: a heating and pressurizing device, which is special in that it includes a conveying device arranged on a bottom plate, and at least one group of heating and pressurizing devices arranged on the bottom plate and arranged in parallel in sequence along the conveying device;

[0006] The handling device comprises a first bracket, an X-axis linear module fixed on the first bracket, and a handling mechanism movably mounted on the X-axis linear module through a first X-axis slide, wherein the first X-axis slide is located at a feeding end side of the X-axis linear module;

[0007] The heating and pressurizing device comprises a feeding drive module fixed on the bottom plate, two lifting cylinders and a first guide rod opposite to the bottom plate, a lower cavity mechanism movably mounted on the bottom plate through the feeding drive module, and an upper cavity mechanism fixed to the end of the piston rod of the lifting cylinder and lifted along the first guide rod;

[0008] The top surface of the lower cavity mechanism is provided with a heating bottom plate;

[0009] The upper cavity mechanism comprises a base plate fixedly mounted on the ends of the piston rods of the two lifting cylinders, a heating and pressurizing cavity fixedly mounted on the bottom surface of the base plate, and a heating plate lifting mechanism fixedly mounted on the base plate and with the output end extending downward through the base plate, wherein a heating plate is fixedly mounted at the output end of the heating plate lifting mechanism, and the heating plate is located in the heating and pressurizing cavity;

[0010] A distance sensor for detecting the distance between the heating plate and the top surface of the lower cavity mechanism is fixedly arranged on the side wall of the heating and pressurizing cavity located on the feeding side, and the probe of the distance sensor is vertically downward;

[0011] The heating plate lifting mechanism comprises a height adjustment module fixed on the base plate and a pressurizing module driven by the height adjustment module to rise and fall relative to the base plate;

[0012] The transport device transfers the optical film to the heating base plate, and the lower cavity mechanism transfers the heating base plate to the heating and pressurizing station along the feeding guide rail. The height adjustment module adjusts the initial height of the heating plate according to the distance sensor and the set value. The upper cavity mechanism descends along the first guide rod under the action of the lifting cylinder until the lower surface of the heating and pressurizing cavity is tightly fitted with the top surface of the lower cavity mechanism to form a closed chamber. The heating plate is pressed down by the drive of the pressurizing module to fit with the heating base plate, and the optical film on the heating base plate is heated and pressurized.

[0013] Preferably, the transport mechanism comprises a first Z-axis linear module fixedly mounted on a first X-axis slide, a first connecting seat movably mounted on the first Z-axis linear module through the first Z-axis slide, a rotating motor assembly mounted at the bottom of the first connecting seat, and an adsorption plate assembly fixedly mounted at the output end of the rotating motor assembly;

[0014] The adsorption plate assembly includes a nozzle bracket installed at the output end of the rotating motor assembly, and an adsorption plate movably installed below the nozzle bracket through a connecting rod, a return spring is mounted on the connecting rod, and a plurality of suction cups connected to the vacuum valve through an air pipe are provided on the bottom surface of the adsorption plate.

[0015] Preferably: the feeding drive module includes two feeding guide rails fixed on the base plate, a feeding motor assembly located between the two feeding guide rails, the feeding motor assembly includes a feeding motor, a first screw rod connected to the output shaft of the feeding motor and installed on the base plate through bearing seats on both sides, and a first screw rod nut seat sleeved on the first screw rod and fixed on the bottom surface of the lower cavity mechanism.

[0016] Preferably, the lower cavity mechanism comprises a lower cavity body, a top surface of the lower cavity body is concavely provided with a cavity, and the heating bottom plate is fixed in the cavity.

[0017] Preferably, the height adjustment module comprises a second bracket fixed on the base plate, a lifting motor installed on the second bracket and with an output shaft extending downward, and a second screw rod connected to the output shaft of the lifting motor;

[0018] The pressurizing module includes a third bracket mounted on the second screw rod through a screw nut, two pressurizing cylinders opposite to each other on both sides of the third bracket, a second connecting plate connecting the piston rod ends of the two pressurizing cylinders and mounted on the outside of the second bracket, and a heating plate connected to the bottom surface of the second connecting plate through a second guide rod, and the heating plate is located in the heating and pressurizing cavity.

[0019] Preferably, a linear bearing is provided on the base plate at a position corresponding to the second guide rod.

[0020] Preferably: a second X-axis slide is movably mounted at the discharge end of the X-axis linear module, and a discharge mechanism is fixedly provided on the second X-axis slide, the discharge mechanism comprises a second Z-axis linear module, a second connecting seat movably mounted on the second Z-axis linear module via a second Z-axis slide, a discharge motor assembly fixedly mounted at the lower part of the second connecting seat, and a discharge bracket fixedly mounted at the output end of the discharge motor assembly, wherein suction nozzles for adsorbing optical films are evenly distributed on the bottom surface of the discharge bracket.

[0021] Preferably, a discharging conveyor belt is provided below the discharging end of the X-axis linear module.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The present invention provides a heating and pressurizing device which can accurately control the distance between the top surface of the heating bottom plate and the heating plate through a distance sensor arranged on one side of the feeding end of the heating and pressurizing cavity and multiple lifting and adjusting mechanisms (lifting cylinder, height adjustment module, pressurizing module) in the upper cavity mechanism. Therefore, according to the set value, the maximum downward pressing height of the pressurizing module is controlled by the height adjustment module, thereby achieving pressurization treatment of the optical film with optimal pressure and improving the quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the heating and pressurizing equipment;

[0025] Figure 2 It is a structural schematic diagram of a heating and pressurizing device;

[0026] Figure 3 It is a schematic diagram of the structural cross-section of the upper cavity mechanism. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with the accompanying drawings:

[0028] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more explicit definition of the protection scope of the present invention. The directional terms mentioned in the present invention, such as "up", "down", "front", "back", "left", "right", "top", "bottom", etc., are only referenced to the directions of the attached drawings. Therefore, the directional terms used are used to illustrate and understand the present invention, rather than to limit the present invention.

[0029] See also Figure 1 As shown, the present invention provides a heating and pressurizing device, comprising a conveying device arranged on a bottom plate 1, and two sets of heating and pressurizing devices arranged on the bottom plate 1 along the conveying device and arranged in parallel;

[0030] See also Figure 1 As shown, the transport device includes a first bracket 21 fixed on the base plate 1, an X-axis linear module 22 fixed on the first bracket 21, and a transport mechanism movably mounted on the X-axis linear module 22 through a first X-axis slide, the first X-axis slide moves from the feeding end to the discharging end of the X-axis linear module 22, a second X-axis slide is also movably mounted on the X-axis linear module 22, a discharging mechanism is mounted on the second X-axis slide, and the second X-axis slide moves from the discharging end to the feeding end of the X-axis linear module 22;

[0031] The transport mechanism includes a first Z-axis linear module 231 vertically fixed on the first X-axis slide, a first connecting seat 232 movably mounted on the first Z-axis linear module through the first Z-axis slide, a rotating motor assembly 233 mounted at the bottom of the first connecting seat 232, and an adsorption plate assembly fixed at the output end of the rotating motor assembly 233;

[0032] The adsorption plate assembly includes a nozzle bracket 234 installed at the output end of the rotating motor assembly 233, and an adsorption plate 235 movably installed below the nozzle bracket 234 through a connecting rod, a return spring is mounted on the connecting rod, and a plurality of suction cups connected to the vacuum valve through an air pipe are provided on the bottom surface of the adsorption plate 235.

[0033] The discharging mechanism includes a second Z-axis linear module 241, a second connecting seat 242 movably mounted on the second Z-axis linear module 241 through a second Z-axis slide, a discharging motor assembly 243 fixedly mounted at the lower part of the second connecting seat 242, and a discharging bracket 244 fixedly mounted at the output end of the discharging motor assembly 243. The bottom surface of the discharging bracket 244 is evenly provided with suction nozzles for adsorbing optical films.

[0034] The discharge end of the heating and pressurizing device is also provided with a discharge conveyor belt, and the discharge conveyor belt is located below the discharge end of the X-axis linear module.

[0035] See also Figure 1 , Figure 2 As shown, the heating and pressurizing device includes a feeding drive module fixed on the bottom plate 1, two lifting cylinders 341 and a first guide rod 342 opposite to each other on the bottom plate, a lower cavity mechanism 31 movably mounted on the bottom plate through the feeding drive module, and an upper cavity mechanism 32 fixed to the piston rod end of the lifting cylinder 341 and driven by the lifting cylinder 341 to rise and fall along the first guide rod 342;

[0036] The feeding drive module includes two feeding guide rails 331 opposite to each other on the base plate 1, a feeding motor assembly fixed on the base plate 1 and located between the two feeding guide rails 331, the feeding motor assembly includes a feeding motor 332, a first screw rod 333 connected to the output shaft of the feeding motor 332 and installed on the base plate 1 through bearing seats on both sides, and a first screw rod nut seat 334 which is sleeved on the first screw rod 333 and fixed on the bottom surface of the lower cavity mechanism 31.

[0037] The lower cavity mechanism 31 includes a lower cavity body 311 , the top surface of the lower cavity body 311 is concave to form a cavity, the bottom surface of the lower cavity body 311 is connected to the first screw nut seat 334 , and a heating bottom plate 312 is fixed in the cavity.

[0038] See also Figure 1 to Figure 3 As shown, the upper cavity mechanism 32 includes a base plate 321 connected to the piston rod of the lifting cylinder 341 and sleeved on the first guide rod 342 through a linear bearing, a heating and pressurizing cavity 322 formed by a plurality of side walls fixed to the bottom surface of the base plate 321 and tightly matched with each other, a heating plate lifting mechanism 323 fixed on the base plate 321 and with the output end extending downward through the base plate 321, and a heating plate 324 fixed to the output end of the heating plate lifting mechanism, the heating plate 324 is located in the heating and pressurizing cavity 322, and a distance sensor 325 (an infrared sensor is used in this embodiment) is fixed on the side wall of the heating and pressurizing cavity 322 located on the feeding side, and the probe of the distance sensor 325 is vertically downward, and is used to detect the distance between the heating plate and the top surface of the lower cavity mechanism;

[0039] See also Figure 3 As shown, the heating plate lifting mechanism 323 includes a height adjustment module and a pressurizing module. The pressurizing module is connected to the output end of the height adjustment module and is lifted and lowered relative to the base plate 321 under the control of the height adjustment module.

[0040] The height adjustment module includes a second bracket 3231 fixed on the base plate 321, a lifting motor 3232 installed on the second bracket 3231 and with an output shaft extending downward, and a second screw rod 3233 connected to the output shaft of the lifting motor 3232;

[0041] The pressurizing module comprises a third bracket 3234 sleeved on the second screw 3233 through a screw nut, two pressurizing cylinders 3235 arranged on both sides of the third bracket 3234, a second connecting plate 3236 connecting the piston rod ends of the two pressurizing cylinders 3235 and sleeved on the outside of the second bracket 3234, and a heating plate 324 connected to the bottom surface of the second connecting plate through a second guide rod, and the heating plate 324 is located in the heating and pressurizing cavity 322;

[0042] The base plate is sleeved on the second guide rod through a linear bearing, and can be used for guiding as well as sealing the upper part of the heating and pressurizing cavity.

[0043] The specific working principle of the heating and pressurizing device provided by the present invention is:

[0044] The transport mechanism transfers the products processed in the previous process to the heated bottom plate for placement;

[0045] The feeding drive module sends the lower cavity body along the feeding guide rail to the heating and pressurizing station (i.e., directly below the upper cavity mechanism);

[0046] During the movement of the lower cavity body, the infrared sensor detects the distance between the product surface height and the heating plate and feeds back to the control system;

[0047] The control system starts the height adjustment module according to the feedback of the distance difference between the heating plate and the product surface and the preset value, and adjusts the height of the heating plate through the height adjustment module;

[0048] When the lower cavity body moves to the heating and pressurizing station, the piston rod of the lifting cylinder retracts, and the upper cavity mechanism moves downward along the first guide rod, and the bottom surface of the heating and pressurizing cavity is closely attached to the top surface of the lower cavity body to form a closed cavity, and the closed cavity is vacuumed;

[0049] When the enclosed space reaches a set vacuum degree and after a set time, the heating plate is pressed down by the heating module to fit with the bottom plate of the heating plate, and the optical film on the heating bottom plate is heated and pressurized;

[0050] When the product is heated and pressurized, the upper cavity mechanism is reset under the action of the lifting cylinder, and the lower cavity body is reset to the feeding station along the feeding guide rail;

[0051] It is sent out manually or moved to the discharging conveyor belt through the discharging mechanism movably installed on the X-axis linear module.

[0052] The above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made within the scope of the claims of the present invention should fall within the scope of the claims of the present invention.

Claims

1. A heating and pressurizing device, characterized in that: It includes a conveying device arranged on a bottom plate, and at least one group of heating and pressurizing devices arranged on the bottom plate and arranged in parallel in sequence along the conveying device; The handling device includes a first bracket, an X-axis linear module fixed on the first bracket, and a handling mechanism movably mounted on the X-axis linear module through a first X-axis slide, wherein the first X-axis slide is located at a feeding end side of the X-axis linear module; the handling mechanism includes a first Z-axis linear module fixed on the first X-axis slide, a first connecting seat movably mounted on the first Z-axis linear module through the first Z-axis slide, a rotating motor assembly mounted at the bottom of the first connecting seat, and an adsorption plate assembly fixed at the output end of the rotating motor assembly; The heating and pressurizing device comprises a feeding drive module fixed on the bottom plate, two lifting cylinders and a first guide rod opposite to the bottom plate, a lower cavity mechanism movably mounted on the bottom plate through the feeding drive module, and an upper cavity mechanism fixed to the end of the piston rod of the lifting cylinder and lifted along the first guide rod; The top surface of the lower cavity mechanism is provided with a heating bottom plate; The upper cavity mechanism comprises a base plate fixedly mounted on the ends of the piston rods of the two lifting cylinders, a heating and pressurizing cavity fixedly mounted on the bottom surface of the base plate, and a heating plate lifting mechanism fixedly mounted on the base plate and with the output end extending downward through the base plate, wherein a heating plate is fixedly mounted at the output end of the heating plate lifting mechanism, and the heating plate is located in the heating and pressurizing cavity; A distance sensor for detecting the distance between the heating plate and the top surface of the lower cavity mechanism is fixedly arranged on the side wall of the heating and pressurizing cavity located on the feeding side, and the probe of the distance sensor is vertically downward; The heating plate lifting mechanism comprises a height adjustment module fixed on the base plate and a pressurizing module driven by the height adjustment module to rise and fall relative to the base plate; The height adjustment module comprises a second bracket fixed on the base plate, a lifting motor installed on the second bracket and with an output shaft extending downward, and a second screw connected to the output shaft of the lifting motor; The pressurizing module includes a third bracket mounted on the second screw rod through a screw nut, two pressurizing cylinders opposite to each other on both sides of the third bracket, a second connecting plate connecting the piston rod ends of the two pressurizing cylinders and mounted on the outside of the second bracket, and a heating plate connected to the bottom surface of the second connecting plate through a second guide rod, and the heating plate is located in the heating and pressurizing cavity.

2. The heating and pressurizing device according to claim 1, characterized in that: The transport device transfers the optical film to the heating base plate, and the lower cavity mechanism transfers the heating base plate to the heating and pressurizing station along the feeding guide rail. The height adjustment module adjusts the initial height of the heating plate according to the distance sensor and the set value. The upper cavity mechanism descends along the first guide rod under the action of the lifting cylinder until the lower surface of the heating and pressurizing cavity is tightly fitted with the top surface of the lower cavity mechanism to form a closed chamber, and the closed chamber is vacuumed; when the closed space reaches the set vacuum degree and after the set time, the heating plate is pressed down under the drive of the pressurizing module to fit with the heating base plate, and the optical film on the heating base plate is heated and pressurized.

3. The heating and pressurizing device according to claim 1, characterized in that: The adsorption plate assembly includes a nozzle bracket installed at the output end of the rotating motor assembly, and an adsorption plate movably installed below the nozzle bracket through a connecting rod, a return spring is mounted on the connecting rod, and a plurality of suction cups connected to the vacuum valve through an air pipe are provided on the bottom surface of the adsorption plate.

4. The heating and pressurizing device according to claim 1, characterized in that: The feeding drive module includes two feeding guide rails fixed on the base plate, and a feeding motor assembly located between the two feeding guide rails. The feeding motor assembly includes a feeding motor, a first screw rod connected to the output shaft of the feeding motor and installed on the base plate through bearing seats on both sides, and a first screw rod nut seat sleeved on the first screw rod and fixed on the bottom surface of the lower cavity mechanism.

5. The heating and pressurizing device according to claim 4, characterized in that: The lower cavity mechanism comprises a lower cavity body, the top surface of the lower cavity body is concavely provided with a cavity, the heating bottom plate is fixed in the cavity, and the bottom surface of the lower cavity body is connected to the first screw nut seat.

6. The heating and pressurizing device according to claim 1, characterized in that: A linear bearing is also provided on the base plate at a position corresponding to the second guide rod. The base plate is sleeved on the second guide rod through the linear bearing. In addition to guiding, it can also be used to achieve sealing of the upper part of the heating and pressurizing cavity.

7. The heating and pressurizing device according to claim 1, characterized in that: The first X-axis slide moves from the feeding end to the discharging end of the X-axis linear module, and a second X-axis slide is movably installed at the discharging end of the X-axis linear module, and a discharging mechanism is fixed on the second X-axis slide. The second X-axis slide moves from the discharging end to the feeding end of the X-axis linear module, and the discharging mechanism includes a second Z-axis linear module, a second connecting seat movably installed on the second Z-axis linear module through the second Z-axis slide, a discharging motor assembly fixed at the lower part of the second connecting seat, and a discharging bracket fixed at the output end of the discharging motor assembly, and suction nozzles for adsorbing optical films are evenly distributed on the bottom surface of the discharging bracket.

8. The heating and pressurizing device according to claim 1 or 7, characterized in that: A discharging conveyor belt is also provided below the discharging end of the X-axis linear module.

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