Regulation and control mechanism of mold capable of controlling grain of PVB (polyvinyl butyral) membrane

Abstract

The invention provides a regulation and control mechanism of a controllable PVB membrane grain mold, and relates to the field of PVB membrane manufacturing equipment.The regulation and control mechanism of the controllable PVB membrane grain mold comprises a working groove, a top plate is arranged in the working groove, an extension plate is arranged at the front end of the top plate, the extension plate is connected with an inclined plate, and the inclined plate is in lap joint with the front end of the top plate; lifting assemblies are connected to the left side and the right side of the working groove and can drive the top plate to move, the top plate slowly gets close to the bottom of the inner wall of the working groove, and when the top plate descends to the lowest position, a gap is formed between the top plate and the bottom of the inner wall of the working groove. A sealing plate is placed at the rear end of the working groove, the working groove and the top plate form a feeding channel, and the sealing plate is used for blocking the rear end of the feeding channel. According to the regulation and control mechanism of the controllable PVB membrane grain mold, the working groove, the top plate, the sealing plate and the inclined plate are matched to form a feeding channel with a single outlet, so that the contact surface between a solvent and external air is greatly reduced, and the situation that the solvent is excessively volatilized, so that the surface tension of the solution is changed, and grains are formed is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of PVB film manufacturing equipment, and specifically to a control mechanism for a controllable PVB film texture mold. Background Technique

[0002] PVB, also known as polyvinyl butyral ester, is soluble in methanol, butanol, acetone, methyl ethyl ketone, cyclohexanone, dichloromethane, chloroform, methyl acetate, ethyl acetate, butyl acetate, etc., and has excellent flexibility and flexural properties. It is refined from PVB resin during production and processing.

[0003] In the fields of aviation and automobiles, PVB films are generally used as interlayer materials for glass.

[0004] During the production of PVB films, as the solvent volatilizes, the surface tension of the PVB solution changes, resulting in the formation of surface topography and texture on the film. Secondly, during the production process, it is necessary to ensure a consistent temperature. When there is a large temperature difference between the front and back, it will affect the fluidity of the film, thereby causing the formation of texture and affecting the film quality. Summary of the Invention

[0005] (1) Technical Problems to be Solved

[0006] In view of the deficiencies of the prior art, the present invention provides a control mechanism for a controllable PVB film texture mold, which solves the problems raised in the above background technique.

[0007] (2) Technical Solutions

[0008] To achieve the above objectives, the present invention is realized through the following technical solutions: A control mechanism for a controllable PVB film texture mold includes a working groove. There is a top plate in the working groove, and there is an extension plate at the front end of the top plate. The extension plate is connected to an inclined plate, and the inclined plate is lapped at the front end of the top plate. Lifting components are connected to both the left and right sides of the working groove. The lifting components can drive the top plate to move, making the top plate slowly approach the bottom of the inner wall of the working groove. When the top plate descends to the lowest position, there is a gap between it and the bottom of the inner wall of the working groove.

[0009] A sealing plate is placed at the rear end of the working groove, and a feeding pipe is installed on the sealing plate. The working groove and the top plate form a feeding channel, and the sealing plate is used to block the rear end of the feeding channel.

[0010] A plurality of hollow tubes are connected to the bottom of the working groove. The plurality of hollow tubes are arranged equidistantly from right to left, and a plurality of sliding rods are connected between adjacent two hollow tubes. The sliding rods are arranged equidistantly. A plurality of temperature sensing components and a plurality of heating units are provided in the hollow tubes.

[0011] Preferably, the temperature sensing components correspond to the sliding rods one by one. The temperature sensing component includes an iron rod, a coil, a thermistor block, a pressure detection unit, a thin spring and a magnetic sheet. The coil is electrically connected to the thermistor block. The iron rod is vertically arranged at the bottom of the inner wall of the hollow tube. The coil is wound around the surface of the iron rod. The pressure detection unit is arranged at the center of the sliding rod everywhere. The working end of the pressure detection unit is connected to the magnetic sheet through a thin spring. The thin spring is sleeved outside the sliding rod, and the magnetic sheet is slidably matched with the sliding rod.

[0012] Preferably, it further includes a small light bulb and a battery. The thermistor block, the small light bulb and the battery are electrically connected in series through the coil. After being powered on, the coil and the iron rod cooperate to form a magnetic field, and there is a repulsive force between the generated magnetic field and the magnetic sheet.

[0013] Preferably, vertical screws are pivotally connected around the working groove. Supports are connected around the top of the top plate. The upper ends of the screws thread through the supports and are connected with small gears. A motor is connected to the top of the support. The transmission shaft of the motor is vertically upward and connected with a gear roller. A connecting rod is connected to the top of the support. The upper end of the gear roller is pivotally connected with the connecting rod. The small gear meshes with the gear roller.

[0014] Preferably, a plurality of heat conduction blocks are installed in the hollow tube. The heat conduction blocks divide the inside of the hollow tube into a plurality of chambers. The small light bulb, the iron rod, the coil and the thermistor block are arranged in the chambers. The top end of the heat conduction block is inserted into the bottom of the working groove. The thermistor block is in contact with the heat conduction block.

[0015] Preferably, it further includes a light sensing unit. The light sensing unit is arranged in the chamber of the hollow tube and is used to sense the brightness of the small light bulb.

[0016] Preferably, an electric push rod is connected to the extension plate at the top of the top plate, and the movable end of the electric push rod is connected to the inclined plate.

[0017] Preferably, a rotating seat is connected to the side of the working groove. The rotating seat is connected to the lower end of the screw. The inner wall of the working groove is smooth, and a traction roller is connected to the front end of the working groove.

[0018] (III) Beneficial effects

[0019] The present invention provides a regulating mechanism for a controllable PVB film texture mold. It has the following beneficial effects:

[0020] 1. The regulating mechanism of the controllable PVB film texture mold forms a feeding channel with a single outlet through the cooperation of the working groove, the top plate, the sealing plate and the inclined plate, thereby greatly reducing the contact surface between the solvent and the outside air, avoiding excessive volatilization of the solvent, and preventing the surface tension of the solution from changing to form texture.

[0021] 2. The control mechanism of the controllable PVB film texture mold has multiple hollow tubes established at the bottom of the working groove. Through the cooperation of the temperature conduction block, iron rod, coil, and thermistor block, the magnetic sheet is pressured on the pressure detection unit by means of magnetic force. The temperature of the corresponding area of the hollow tube is calculated according to the magnitude of the applied force. And the heating unit is used for heat preservation heating to avoid too large a temperature difference between the front and the back, resulting in slow movement of the front solution due to low temperature, and causing the back solution to move and accumulate to generate wrinkle patterns. Ensure the overall uniform movement of the solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a three-dimensional structure diagram of the present invention;

[0023] Figure 2 is a schematic structural diagram of the present invention;

[0024] Figure 3 is a schematic diagram of another angle of the structure of the present invention;

[0025] Figure 4 is a diagram showing the internal structure of the hollow tube of the present invention;

[0026] Figure 5 For the present invention Figure 4 is an enlarged view of the structure at A in;

[0027] Figure 6 is a diagram showing the coil structure of the present invention;

[0028] Figure 7 is a cross-sectional view of a partial structure of the present invention.

[0029] In the figure: 1 working groove, 11 rotating seat, 12 screw rod, 13 small gear, 14 traction roller, 2 top plate, 21 support, 22 motor, 23 connecting rod, 24 gear roller, 25 electric push rod, 3 sealing plate, 31 feeding pipe, 4 hollow tube, 41 temperature conduction block, 42 light sensing unit, 5 sliding rod, 51 pressure detection unit, 52 thin spring, 53 magnetic sheet, 6 inclined plate, 7 iron rod, 8 coil, 9 thermistor block, 10 small light bulb. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The embodiment of the present invention provides a control mechanism of a controllable PVB film texture mold, as Figure 1-7 shown, including a working groove 1. A top plate 2 is arranged in the working groove 1, and the top plate 2 covers the entire groove of the working groove 1. An extension plate is fixedly installed at the top of the front end of the top plate 2, and an inclined plate 6 is installed on the extension plate. The inclined plate 6 is lapped on the front end of the top plate 2.

[0031] Lifting assemblies are connected to both the left and right sides of the working groove 1. The lifting assemblies can drive the top plate 2 to move up and down, so that the top plate 2 slowly approaches the bottom of the inner wall of the working groove 1. When the top plate 2 descends to the lowest position, there is a gap between the top plate 2 and the bottom of the inner wall of the working groove 1.

[0032] A sealing plate 3 is placed at the rear end of the working groove 1, and the sealing plate 3 abuts against the rear end of the working groove 1. The sealing plate 3 is fixedly installed with a feeding pipe 31. The working groove 1 and the top plate 2 form a feeding channel, and the sealing plate 3 is used to block the rear end of the feeding channel. Raw materials are fed into the gap between the working groove 1 and the top plate 2 through the feeding pipe 31.

[0033] A plurality of hollow tubes 4 are fixedly installed at the bottom of the working groove 1. The plurality of hollow tubes 4 are arranged at equal distances from right to left, and a plurality of sliding rods 5 are welded between two adjacent hollow tubes 4. The sliding rods 5 are arranged at equal distances. A plurality of temperature sensing components and a plurality of heating units are provided inside the hollow tubes 4. Since the heating unit is a conventional technical means, the specific structure, connection method, etc. will not be described in detail.

[0034] The temperature sensing components correspond to the sliding rods 5 one by one. The temperature sensing component includes an iron rod 7, a coil 8, a thermistor block 9, a pressure detection unit 51, a thin spring 52 and a magnetic sheet 53. The coil 8 is electrically connected to the thermistor block 9. The iron rod 7 is vertically and fixedly installed at the bottom of the inner wall of the hollow tube 4, and the coil 8 is wound around the surface of the iron rod 7.

[0035] The pressure detection unit 51 is fixedly installed at the center of the sliding rod 5. One end of the thin spring 52 is fixedly installed with the working end of the pressure detection unit 51, and the other end of the thin spring 52 is fixedly installed with the magnetic sheet 53. The thin spring 52 is sleeved outside the sliding rod 5, and the magnetic sheet 53 is slidably matched with the sliding rod 5.

[0036] It also includes a small light bulb 10 and a battery. The thermistor block 9, the small light bulb 10 and the battery are electrically connected in series through the coil 8. After being energized, the coil 8 and the iron rod 7 cooperate to form a magnetic field, and there is a repulsive force between the generated magnetic field and the magnetic sheet 53. The above thermistor block 9 is a PTC thermistor. When the temperature rises, the resistance value of the PTC thermistor will increase. This is because the carrier concentration in the material decreases and the resistivity increases, resulting in an increase in the resistance value.

[0037] Working principle: When the temperature drops, the resistance value of the thermistor block 9 decreases. At this time, the current passing through the coil 8 on the surface of the iron rod 7 increases, making the magnetic force of the magnetic field stronger. Thus, the magnetic sheet 53 is pushed closer to the pressure detection unit 51, and the thin spring 52 is compressed.

[0038] The above pressure detection unit 51 monitors and feeds back information to the computer terminal in real time. During operation, the hollow tube 1 is used to monitor the temperature of each area of the working groove 1. Ensure that the temperature difference between the temperatures measured by two adjacent hollow tubes 4 is within 5 degrees Celsius. When the temperature difference exceeds the preset allowable range, the heating unit is used to heat and keep warm the area of the working groove 1. Then, through the heat transfer effect, the raw materials are heated and kept warm. Avoiding too large a temperature difference between the front and rear of the raw materials, resulting in slow movement of the raw materials in the low-temperature area and wrinkling of the raw materials moving forward from the rear.

[0039] A vertical screw 12 is pivotally connected around the working groove 1. At the top of the top plate 2, supports 21 are welded around. The upper end of the screw 12 threadedly penetrates through the support 21 and is welded with a small gear 13. A motor 22 is fixedly installed at the top of the support 21. The transmission shaft of the motor 22 is vertically upward and welded with a gear roller 24. A connecting rod 23 is fixedly installed at the top of the support 21. The upper end of the gear roller 24 is pivotally connected with the connecting rod 23. The small gear 13 meshes with the gear roller 24.

[0040] A plurality of heat conduction blocks 41 are fixedly installed in the hollow tube 4. The heat conduction blocks 41 divide the interior of the hollow tube 4 into a plurality of chambers. The heating units are fixedly installed at the top of the inner wall of each chamber. The working ends of the heating units extend outside the hollow tube 4 and are in contact with the bottom of the inner wall of the working groove 1.

[0041] The small light bulb 10, the iron rod 7, the coil 8, and the thermistor block 9 are also fixedly installed in the chamber. The top end of the heat conduction block 41 is fixedly inserted into the bottom of the working groove 1. The top end of the heat conduction block 41 does not extend into the working groove 1. The thermistor block 9 is in contact with the heat conduction block 41.

[0042] It also includes a light sensing unit 42. The light sensing unit 42 is fixedly installed in the chamber of the hollow tube 4. The light sensing unit 42 is used to sense the brightness of the small light bulb 10. When the temperature drops, the current increases and the brightness of the small light bulb 10 increases. It serves the purpose of secondary auxiliary detection of the resistance value.

[0043] An electric push rod 25 is fixedly installed on the extension plate at the top of the top plate 2. The movable end of the electric push rod 25 is fixedly connected with the inclined plate 6. By the telescoping of the electric push rod 25, the distance between the inclined plate 6 and the bottom of the inner wall of the working groove 1 is adjusted, which plays a role in fine adjustment and changes the size of the outlet of the feeding channel according to requirements.

[0044] A rotating seat 11 is fixedly installed on the side of the working groove 1. The rotating seat 11 is fixedly connected with the lower end of the screw 12. The inner wall of the working groove 1 is smooth. A traction roller 14 driven by a motor is fixedly installed at the front end of the working groove 1.

[0045] In summary, the regulation mechanism of the controllable PVB film texture mold forms a feeding channel with a single outlet through the cooperation of the working groove 1, the top plate 2, the sealing plate 3, and the inclined plate 6, thus greatly reducing the contact surface between the solvent and the outside air, avoiding excessive volatilization of the solvent, and preventing the surface tension of the solution from changing to form textures.

[0046] Moreover, a plurality of hollow tubes 4 are provided at the bottom of the working groove 1. Through the cooperation of the heat conduction blocks 41, the iron rod 7, the coil 8, and the thermistor block 9, the magnetic sheet 53 exerts pressure on the pressure detection unit 5 by means of magnetic force. The temperature of the corresponding area of the hollow tube 4 is calculated according to the magnitude of the applied force. And the heating unit is used for heat preservation heating to avoid too large a temperature difference between the front and the back, so that the solution in the front moves slowly due to low temperature, resulting in the solution in the back moving and piling up to generate wrinkled textures. Ensure the overall uniform movement of the solution.

[0047] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A control mechanism for a controllable PVB film pattern mold, comprising a working tank (1), characterized in that: The working groove (1) is provided with a top plate (2), an extension plate is provided at the front end of the top plate (2), the extension plate is connected to an inclined plate (6), the inclined plate (6) is overlapped at the front end of the top plate (2), and the left and right sides of the working groove (1) are connected to lifting components, the lifting components can drive the top plate (2) to move, so that the top plate (2) slowly approaches the bottom of the inner wall of the working groove (1), and the gap between the top plate (2) and the bottom of the inner wall of the working groove (1) is reduced when the top plate (2) drops to the lowest point; A sealing plate (3) is placed at the rear end of the working tank (1), and a material delivery pipe (31) is installed on the sealing plate (3). The working tank (1) and the top plate (2) form a feeding channel, and the sealing plate (3) is used to block the rear end of the feeding channel. The bottom of the working tank (1) is connected to a plurality of hollow tubes (4), the plurality of hollow tubes (4) are arranged at equal distances from right to left, a plurality of sliding rods (5) are connected between two adjacent hollow tubes (4), the sliding rods (5) are arranged at equal distances, and a plurality of temperature sensing components and a plurality of heating units are arranged in the hollow tubes (4).

2. The control mechanism of the controllable PVB film texture mold according to claim 1, characterized in that: The temperature sensing component corresponds to the slide bar (5) one by one, and comprises an iron rod (7), a coil (8), a thermistor block (9), a pressure detection unit (51), a thin spring (52) and a magnetic sheet (53). The coil (8) is electrically connected to the thermistor block (9). The iron rod (7) is vertically arranged at the bottom of the inner wall of the hollow tube (4). The coil (8) is wound on the surface of the iron rod (7). The pressure detection unit (51) is arranged at the center of the slide bar (5). The working end of the pressure detection unit (51) is connected to the magnetic sheet (53) through the thin spring (52). The thin spring (52) is sleeved outside the slide bar (5). The magnetic sheet (53) is slidably matched with the slide bar (5).

3. The control mechanism of the controllable PVB film texture mold according to claim 2 is characterized in that: It also includes a small light bulb (10) and a battery. The thermistor block (9), the small light bulb (10) and the battery are electrically connected in series through a coil (8). After power is turned on, the coil (8) cooperates with the iron rod (7) to form a magnetic field. There is a mutually repulsive force between the generated magnetic field and the magnetic sheet (53).

4. The control mechanism of the controllable PVB film pattern mold according to claim 3 is characterized in that: The working groove (1) is pivotally connected with a vertical screw rod (12) on all sides, and the top of the top plate (2) is connected with a support (21) on all sides. The upper end of the screw rod (12) is threadedly passed through the support (21) and is connected with a pinion gear (13). The top of the support (21) is connected with a motor (22). The transmission shaft of the motor (22) is vertically connected with a gear roller (24) upward. The top of the support (21) is connected with a connecting rod (23). The upper end of the gear roller (24) is pivotally connected to the connecting rod (23), and the pinion gear (13) is meshed with the gear roller (24).

5. The control mechanism of the controllable PVB film pattern mold according to claim 4, characterized in that: A plurality of temperature conducting blocks (41) are installed in the hollow tube (4). The temperature conducting blocks (41) divide the interior of the hollow tube (4) into a plurality of chambers. The small light bulb (10), the iron rod (7), the coil (8), and the thermistor block (9) are arranged in the chambers. The top of the temperature conducting block (41) is plugged into the bottom of the working groove (1), and the thermistor block (9) is in contact with the temperature conducting block (41).

6. The control mechanism of the controllable PVB film pattern mold according to claim 5, characterized in that: It also includes a light sensing unit (42), which is arranged in the cavity of the hollow tube (4) and is used to sense the brightness of the small light bulb (10).

7. The control mechanism of the controllable PVB film pattern mold according to claim 6, characterized in that: The extension plate at the top of the top plate (2) is connected to an electric push rod (25), and the movable end of the electric push rod (25) is connected to the inclined plate (6).

8. The control mechanism of the controllable PVB film pattern mold according to claim 7, characterized in that: The side of the working groove (1) is connected to a rotating seat (11), the rotating seat (11) is connected to the lower end of the screw (12), the inner wall of the working groove (1) is smooth, and the front end of the working groove (1) is connected to a traction roller (14).

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