Resin casting stabilizing device and coating casting head

Abstract

The utility model discloses a resin casting stabilizing device and a coating casting head, and relates to the technical field of film manufacturing, the resin casting stabilizing device comprises: a cross beam support having a first end and a second end opposite to each other along the lengthwise extension direction; the ventilation pipe is arranged on the cross beam support, the ventilation pipe comprises a ventilation main pipe, a first ventilation branch pipe and a second ventilation branch pipe, the first ventilation branch pipe and the second ventilation branch pipe are communicated with the ventilation main pipe and are bendable hoses, and the first ventilation branch pipe and the second ventilation branch pipe are arranged close to the first end and the second end respectively; the air blowing pipe is provided with a head end and a tail end which are opposite in the lengthwise extending direction of the air blowing pipe, the head end and the tail end are both closed ends, the positions, close to the head end and the tail end, of the air blowing pipe are provided with a first connector and a second connector respectively, the first connector is communicated with the free end of the first ventilation branch pipe, and the second connector is communicated with the free end of the second ventilation branch pipe. And an air outlet is formed in the air blowing pipe. The purpose of stabilizing resin casting can be achieved by controlling the blowing angle of gas at the lip.

Description

Technical Field

[0001] The utility model relates to the technical field of film manufacturing, in particular to a resin casting stabilizing device and a coating casting head. Background Art

[0002] At present, the stabilizing device used in polyimide film resin casting is fixed on the resin casting head and cannot be moved flexibly, resulting in the inability to adaptively adjust the gas purge angle and heating angle. The purpose of stabilizing the resin casting can only be achieved by controlling the gas flow rate. In addition, in order to make the casting lip temperature above the dew point, the existing stabilizing device heats the lip by passing hot kerosene. This heating method has the risk of leakage of high-temperature hot kerosene pipelines and pipeline interfaces. Utility Model Content

[0003] The utility model aims to provide a resin casting stabilizing device and a coating casting head, which can at least solve one of the above problems.

[0004] The above-mentioned purpose of the utility model can be achieved by adopting the following technical solutions:

[0005] The utility model provides a resin casting stabilization device, comprising: a crossbeam support, the crossbeam support having a first end and a second end opposite to each other along its longitudinal extension direction; a vent pipe, arranged on the crossbeam support, the vent pipe comprising a main vent pipe and a first vent branch pipe and a second vent branch pipe connected to the main vent pipe, one of the first vent branch pipe and the second vent branch pipe being arranged close to the first end, the other of the first vent branch pipe and the second vent branch pipe being arranged close to the second end, the first vent branch pipe and the second vent branch pipe being both bendable hoses; an air blowing pipe, the air blowing pipe having a head end and a tail end opposite to each other along its longitudinal extension direction, the head end and the tail end being both closed ends, a first interface and a second interface being respectively arranged on the air blowing pipe near the head end and the tail end, the first interface being connected to a free end of the first vent branch pipe, the second interface being connected to a free end of the second vent branch pipe, and an air outlet being arranged on the air blowing pipe.

[0006] Preferably, the air outlet extends along the longitudinal extension direction of the air blowing pipe and is located between the head end and the tail end.

[0007] Preferably, the first interface and the second interface are arranged in parallel on the same side of the air blowing pipe, and the first interface and the second interface are arranged radially opposite to the air outlet.

[0008] Preferably, the crossbeam support is provided with a first through hole and a second through hole, the two ends of the first through hole are respectively connected to the ventilation main pipe and the first ventilation branch pipe, and the two ends of the second through hole are respectively connected to the second ventilation branch pipe and a connecting pipe for connecting the second ventilation branch pipe with the ventilation main pipe.

[0009] Specifically, the crossbeam support includes a first support plate and a second support plate connected to each other, the first support plate and the second support plate have an angle greater than zero, the first support plate is provided with the first through hole and the second through hole, and the second support plate is provided with a plurality of mounting holes at intervals, and the plurality of mounting holes are used to install the resin casting stabilization device on the resin casting body.

[0010] Furthermore, the air blowing pipe is an electrically heated metal pipe that can be heated by electricity.

[0011] Furthermore, sealing members are provided between the main ventilation pipe and the first ventilation branch pipe, between the main ventilation pipe and the second ventilation branch pipe, between the first interface and the first ventilation branch pipe, and between the second interface and the second ventilation branch pipe.

[0012] Another object of the present application is to provide a coating casting head, comprising: the resin casting stabilizing device as described above; a resin casting body, a resin storage cavity is formed inside the resin casting body, the bottom of the resin storage cavity is connected with the bottom of the resin casting body to form a lip, the resin casting stabilizing device is arranged on the front and rear sides of the lip, and the side of the air outlet provided on the air pipe is arranged close to the lip.

[0013] Preferably, the bottom end of the air blowing pipe is arranged 1 cm to 2 cm higher than the bottom end of the lip.

[0014] Preferably, the air outlet direction of the air outlet hole is arranged at 60° to 90° with the resin casting direction of the lip.

[0015] The characteristics and advantages of the utility model are as follows: the resin casting stabilization device provided in the embodiment of the utility model includes a crossbeam bracket, a ventilation main pipe arranged on the crossbeam bracket, an air blowing pipe for blowing the lip, and a first ventilation branch pipe and a second ventilation branch pipe connected between the ventilation main pipe and the air blowing pipe. By adopting a flexible hose as the first ventilation branch pipe and the second ventilation branch pipe, the blowing angle of the gas at the lip can be controlled, thereby achieving the purpose of stabilizing the resin casting. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a structural schematic diagram of the resin casting stabilization device provided in an embodiment of the utility model;

[0018] Figure 2 It is a schematic structural diagram of a coating casting head provided in an embodiment of the utility model.

[0019] Description of Figure Numbers:

[0020] 100. Resin casting stabilization device;

[0021] 110, beam support; 111, first support plate; 1111, first through hole; 1112, second through hole; 112, second support plate; 1121, mounting hole;

[0022] 120. Ventilation main pipe;

[0023] 130, first ventilation branch;

[0024] 140, second ventilation branch;

[0025] 150, air blowing pipe; 151, first interface; 152, second interface; 153, air outlet;

[0026] 160, connecting pipe;

[0027] 200, resin casting body; 201, resin storage chamber; 202, lip. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] like Figure 1 and Figure 2As shown, the utility model provides a resin casting stabilization device 100, comprising: a crossbeam support 110, the crossbeam support 110 having a first end and a second end opposite to each other along its longitudinal extension direction; a vent pipe, arranged on the crossbeam support 110, the vent pipe comprising a vent main pipe 120 and a first vent branch pipe 130 and a second vent branch pipe 140 connected to the vent main pipe 120, one of the first vent branch pipe 130 and the second vent branch pipe 140 being arranged near the first end, and the other of the first vent branch pipe 130 and the second vent branch pipe 140 being arranged near the first end. Arranged near the second end, the first ventilation branch pipe 130 and the second ventilation branch pipe 140 are both bendable hoses; the blowing pipe 150 has a head end and a tail end relative to each other along its longitudinal extension direction, and the head end and the tail end are both closed ends. The blowing pipe 150 is respectively provided with a first interface 151 and a second interface 152 near the head end and the tail end, the first interface 151 is connected to the free end of the first ventilation branch pipe 130, and the second interface 152 is connected to the free end of the second ventilation branch pipe 140, and the blowing pipe 150 is provided with an air outlet 153.

[0030] Specifically, Figure 2 As shown, the resin casting stabilization device 100 is installed on both sides of the lip 202 of the resin casting body 200, and the gas introduced into the ventilation main pipe 120 is transported to the blowing pipe 150 through the first ventilation branch pipe 130 and the second ventilation branch pipe 140. The gas diffuses in the blowing pipe 150 and flows out from the air outlet 153, blowing on both sides of the lip 202 to achieve the purpose of stabilizing the resin casting. By arranging the first end of the first ventilation branch pipe 130 close to the crossbeam support 110 and connecting it to the first interface 151 of the blowing pipe 150, and arranging the second end of the second ventilation branch pipe 140 close to the crossbeam support 110 and connecting it to the second interface 152 of the blowing pipe 150, the resin casting stabilization device 100 is in the shape of a square, so that the gas blowing angle can be adjusted while maintaining the blowing angle after the adjustment is completed.

[0031] Among them, the first ventilation branch pipe 130 and the second ventilation branch pipe 140 can adopt a bendable metal hose with a certain hardness, or a universal plastic hose. In order to facilitate the control of the purge angle of the gas flowing out of the self-blowing pipe 150 at the lip 202 by adjusting the first ventilation branch pipe 130 and the second ventilation branch pipe 140, the first ventilation branch pipe 130 and the second ventilation branch pipe 140 preferably adopt a universal plastic hose, and are connected between the ventilation main pipe 120 and the blowing pipe 150 through the hard plastic sections at both ends of the universal plastic hose. Further, in order to facilitate the disassembly, cleaning and replacement of the first ventilation branch pipe 130 and the second ventilation branch pipe 140, the first ventilation branch pipe 130 and the second ventilation branch pipe 140 are connected between the ventilation main pipe 120 and the blowing pipe 150 by threaded connection. In this embodiment, the gas introduced into the ventilation main pipe 120 is preferably one or a mixture of several inert gases such as nitrogen (N2), helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn).

[0032] According to one embodiment of the utility model, in order to prevent the purge effect of the lip 202 from being affected by leakage of gas during the transportation process, seals are provided between the ventilation main pipe 120 and the first ventilation branch pipe 130, between the ventilation main pipe 120 and the second ventilation branch pipe 140, between the first interface 151 and the first ventilation branch pipe 130, and between the second interface 152 and the second ventilation branch pipe 140.

[0033] According to one embodiment of the present utility model, Figure 1 As shown, the air outlet 153 extends along the longitudinal extension direction of the air blowing pipe 150 and is located between the head end and the tail end. Specifically, the air outlet 153 is a narrow and long slit hole provided between the head end and the tail end of the air blowing pipe 150. In order to achieve full coverage of the resin casting curtain by the gas, the length of the air outlet 153 is not less than the length of the lip 202 of the resin casting body 200. Preferably, the length of the air outlet 153 is equal to the length of the lip 202 of the resin casting body 200.

[0034] According to one embodiment of the present utility model, Figure 1 As shown, the first interface 151 and the second interface 152 are arranged in parallel on the same side of the air blowing pipe 150, and the first interface 151 and the second interface 152 are arranged radially opposite to the air outlet 153, that is, the first interface 151 and the second interface 152 are arranged in parallel and aligned on one side of the air blowing pipe 150, and the air outlet 153 is arranged on the other side of the air blowing pipe 150 radially opposite to each other. By arranging the air inlet and the air outlet 153 on the air blowing pipe 150 radially opposite to each other, the diffusion time of the gas in the air blowing pipe 150 is shortened, so that the gas can be quickly purged on both sides of the lip 202.

[0035] According to one embodiment of the present utility model, Figure 1 As shown, in order to facilitate the installation of the first ventilation branch pipe 130 and the second ventilation branch pipe 140 and the adjustment and maintenance of the gas purge angle of the blowing pipe 150, the crossbeam bracket 110 is provided with a first through hole 1111 and a second through hole 1112, and the two ends of the first through hole 1111 are respectively connected to the ventilation main pipe 120 and the first ventilation branch pipe 130, and the two ends of the second through hole 1112 are respectively connected to the second ventilation branch pipe 140 and the connecting pipe 160 for connecting the second ventilation branch pipe 140 with the ventilation main pipe 120.

[0036] According to one embodiment of the present utility model, Figure 1 and Figure 2 As shown, in order to facilitate the installation of the resin casting stabilizing device 100 on the resin casting main body 200, the crossbeam support 110 includes a first support plate 111 and a second support plate 112 connected to each other, the first support plate 111 and the second support plate 112 have an angle greater than zero, the first support plate 111 is provided with a first through hole 1111 and a second through hole 1112, and the second support plate 112 is provided with a plurality of mounting holes 1121 at intervals, and the plurality of mounting holes 1121 are used to install the resin casting stabilizing device 100 on the resin casting main body 200. Specifically, the resin casting main body 200 is provided with threaded holes that match the mounting holes 1121 on the second support plate 112, and the resin casting stabilizing device 100 is installed on the resin casting main body 200 through threaded connection. Among them, the crossbeam support 110 can be formed by welding the first support plate 111 and the second support plate 112, or by bending a steel plate. In the present embodiment, the angle between the first support plate 111 and the second support plate 112 is a right angle, so as to facilitate the assembly of the resin casting stabilizing device 100 and the resin casting body 200 .

[0037] According to one embodiment of the present invention, the air blowing tube 150 is an electrically heated metal tube. Thus, the actual temperature of the lip 202 is adjusted to above the dew point temperature by electrically heating the electrically heated metal tube, thereby preventing condensation water from forming on the lip 202 and thus affecting the resin casting effect.

[0038] like Figure 2 As shown, another object of the present application is to provide a coating casting head, comprising: the resin casting stabilizing device 100 as described above; a resin casting body 200, wherein a resin storage cavity 201 is formed inside the resin casting body 200, and the bottom of the resin storage cavity 201 is connected with the bottom of the resin casting body 200 to form a lip 202, and the front and rear sides of the lip 202 are both provided with the resin casting stabilizing device 100, and the air outlet 153 is provided on the air pipe 150 and is arranged close to the lip 202.

[0039] Specifically, Figure 2As shown, the coating casting head includes a resin casting body 200 having a lip 202 and a resin casting stabilizing device 100 disposed on the front and rear sides of the lip 202 and connected to the resin casting body 200, and the air outlet 153 of the air blowing pipe 150 on the resin casting stabilizing device 100 is disposed on a side close to the lip 202. Preferably, the air blowing pipes 150 on the two resin casting stabilizing devices 100 are disposed in parallel on the front and rear sides of the lip 202, and the air outlet 153 of the air blowing pipe 150 is disposed relatively with respect to the lip 202, so that the gas introduced into the two resin casting stabilizing devices 100 is evenly swept on the front and rear sides of the lip 202 at the same time, and the temperature of the lip 202 is adjusted by electrically heating the electric heating metal pipe to ensure the stability of the resin casting. To ensure the stability of the entire resin casting process, the resin casting stabilizing device 100 is opened before the resin casting, that is, the lip 202 is in a gas-purged and electric-heated metal tube heating state before the resin casting.

[0040] According to an embodiment of the present invention, in order to prevent the electric heating metal tube from hitting the steel belt waiting for resin casting, the bottom end of the air blowing tube 150 is set 1 cm to 2 cm higher than the bottom end of the lip 202. In this way, the gas is first blown onto the outer wall of the lip 202, and then the gas is blown toward the resin along the outer wall, which is equivalent to forming a protective layer on both sides of the lip 202, which can prevent the resin from shaking and sticking to the lip 202, and can effectively remove the water vapor around the lip 202, avoiding condensation when the resin with a lower temperature flows through the metal lip 202.

[0041] It should be noted that the gas flow rate and the horizontal distance between the air outlet and the lip 202 also have a certain influence on the resin casting. From the debugging results, at the gas flow rate corresponding to the gas pressure range of 0.15Mpa to 0.2Mpa, keeping the horizontal distance between the air outlet and the lip 202 between 5mm and 25mm, gas purging can obtain a better resin casting stability effect.

[0042] According to a preferred embodiment of the utility model, the air outlet direction of the air outlet 153 is set at 60° to 90° with the resin casting direction of the lip 202, that is, the angle adjustment range between the gas blowing direction and the resin casting direction is 60° to 90°, so as to ensure a better gas blowing effect.

[0043] Based on the above description, the resin casting stabilization device 100 provided in the embodiment of the utility model includes a crossbeam bracket 110, a ventilation main pipe 120 arranged on the crossbeam bracket 110, an air blowing pipe 150 for purging the lip 202, and a first ventilation branch pipe 130 and a second ventilation branch pipe 140 connected between the ventilation main pipe 120 and the air blowing pipe 150. By adopting a flexible hose as the first ventilation branch pipe 130 and the second ventilation branch pipe 140, the purge angle of the gas at the lip 202 is controlled, thereby achieving the purpose of stabilizing the resin casting; and by adopting an electric heating metal tube as the air blowing pipe 150, the temperature of the lip 202 is adjusted, condensation at the lip 202 is avoided during the resin casting process, and the stability of the resin casting is further ensured.

[0044] The above are only several embodiments of the present invention. Those skilled in the art can make various changes or modifications to the embodiments of the present invention based on the contents disclosed in the application documents without departing from the spirit and scope of the present invention.

Claims

1. A resin casting stabilization device, characterized in that: include: A crossbeam support, wherein the crossbeam support has a first end and a second end opposite to each other along a longitudinal extension direction thereof; A vent pipe is arranged on the crossbeam support, the vent pipe comprises a main vent pipe and a first vent pipe and a second vent pipe connected to the main vent pipe, one of the first vent pipe and the second vent pipe is arranged near the first end, the other of the first vent pipe and the second vent pipe is arranged near the second end, and both the first vent pipe and the second vent pipe are bendable hoses; An air blowing pipe, wherein the air blowing pipe has a head end and a tail end opposite to each other along its longitudinal extension direction, wherein the head end and the tail end are both closed ends, and a first interface and a second interface are respectively provided on the air blowing pipe near the head end and the tail end, wherein the first interface is connected to the free end of the first ventilation branch pipe, and the second interface is connected to the free end of the second ventilation branch pipe, and an air outlet is provided on the air blowing pipe.

2. The resin casting stabilization device according to claim 1, characterized in that: The air outlet extends along the longitudinal extension direction of the air blowing pipe and is located between the head end and the tail end.

3. The resin casting stabilization device according to claim 2, characterized in that: The first interface and the second interface are arranged in parallel on the same side of the air blowing pipe, and the first interface and the second interface are arranged radially opposite to the air outlet.

4. The resin casting stabilization device according to claim 1, characterized in that: The crossbeam support is provided with a first through hole and a second through hole, the two ends of the first through hole are respectively connected to the ventilation main pipe and the first ventilation branch pipe, and the two ends of the second through hole are respectively connected to the second ventilation branch pipe and a connecting pipe for connecting the second ventilation branch pipe with the ventilation main pipe.

5. The resin casting stabilization device according to claim 4, characterized in that: The crossbeam support includes a first support plate and a second support plate connected to each other, wherein the first support plate and the second support plate have an angle greater than zero, the first support plate is provided with the first through hole and the second through hole, and the second support plate is provided with a plurality of mounting holes at intervals, and the plurality of mounting holes are used to mount the resin casting stabilization device on the resin casting body.

6. The resin casting stabilization device according to claim 1, characterized in that: The air blowing pipe is an electric heating metal pipe which can be heated by electricity.

7. The resin casting stabilization device according to claim 1, characterized in that: Seals are provided between the ventilation main pipe and the first ventilation branch pipe, between the ventilation main pipe and the second ventilation branch pipe, between the first interface and the first ventilation branch pipe, and between the second interface and the second ventilation branch pipe.

8. A coating casting head, characterized in that: include: The resin casting stabilizing device according to any one of claims 1 to 7; A resin casting body, wherein a resin storage cavity is formed inside the resin casting body, the bottom of the resin storage cavity is connected with the bottom of the resin casting body to form a lip, the front and rear sides of the lip are both provided with the resin casting stabilizing device, and the side of the air outlet on the blowing pipe is arranged close to the lip.

9. The coating casting head according to claim 8, characterized in that: The bottom end of the air blowing pipe is arranged 1 cm to 2 cm higher than the bottom end of the lip.

10. The coating casting head according to claim 9, characterized in that: The air outlet direction of the air outlet hole is arranged at 60° to 90° with the resin casting direction of the lip.

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