Controllable micro-injection device for liquid crystal material

Abstract

The invention relates to the technical field of feeding, in particular to a liquid crystal material controllable micro-injection device which comprises a material storage box. And the flow regulation and control assembly comprises discharging openings, the multiple discharging openings are formed in the bottom of the material storage box and penetrate into the material storage box, a movable strip is movably connected to the inner wall of the bottom of the material storage box, a through hole is formed in the movable strip, and a connecting rod is fixedly connected to one corner of the top of the through hole. According to the controllable micro-injection device for the liquid crystal material, the position of each liquid dropping head is equidistantly adjusted when a bidirectional lead screw rotates through a first spring and a sliding sleeve in a distance adjusting and controlling assembly, so that the controllable micro-injection device can adapt to base materials of different specifications and sizes, and meanwhile, when the liquid dropping heads drop the liquid crystal material through a waved plate and an abutting push rod, the liquid crystal material can be accurately injected. The liquid crystal material can uniformly drop on the surface of the base material, accumulation of the liquid crystal material in a local area and loss of the liquid crystal material in the local area are avoided, and therefore the liquid crystal material is uniformly coated on the surface of the base material through the scraping rod.

Description

Technical Field

[0001] The invention relates to the technical field of material feeding, in particular to a controllable micro-injection device for liquid crystal materials. Background Art

[0002] During the experiment of preparing liquid crystal materials, in order to observe and understand the properties of the prepared liquid crystal materials, experimental coating equipment is usually used to coat the liquid crystal materials on the surface of the substrate so as to observe the properties of the prepared liquid crystal materials.

[0003] The traditional method of adding liquid crystal materials is to manually place the materials directly on the substrate, and then coat the liquid crystal materials on the substrate through the gap between the scraper and the surface of the substrate. However, when adding liquid crystal materials to substrates of different sizes, the dosage is difficult to control and uneven distribution will occur during the coating process. In order to coat evenly, excessive amounts of liquid crystal materials need to be added, but excessive amounts of liquid crystal materials require a large amount of materials to be prepared, resulting in material waste. At the same time, a large amount of residual liquid crystal materials after coating will cause difficulties in cleaning. For this reason, we propose a controllable micro-injection device for liquid crystal materials. Summary of the invention

[0004] The purpose of the present invention is to provide a controllable micro-injection device for liquid crystal materials, so as to solve the problems proposed in the above background technology that when the liquid crystal materials are added manually to substrates of different sizes, the dosage is difficult to control and uneven distribution occurs during the coating process, and excessive liquid crystal materials require a large amount of materials to be prepared, resulting in material waste. At the same time, a large amount of residual liquid crystal materials after coating will cause cleaning difficulties. To achieve the above purpose, the present invention provides the following technical solutions: a controllable micro-injection device for liquid crystal materials, including a storage box; A flow control component, the flow control component includes a feed opening, a plurality of the feed openings are opened at the bottom of the material storage box and penetrate into the material storage box, a movable bar is movably connected to the inner wall of the bottom of the material storage box, a through hole is opened inside the movable bar, a connecting rod is fixedly connected to a top corner of the through hole, and a limiting rod is fixedly connected to one side of the material storage box; A spacing control component, wherein the spacing control component comprises a fixing part, a sliding rod is fixedly connected to one side opposite to the two fixing parts, a plurality of sliding sleeves arranged in a linear array are movably sleeved on the side surface of the sliding rod, a fixing ring is fixedly connected to the side surface of the sliding sleeve, a dripping head is fixedly sleeved on the inner wall of the fixing ring, a hose is fixedly connected to the top of the dripping head and the other end of the hose is fixedly connected to the storage box through a feeding port, a first spring is movably connected between every two adjacent sliding sleeves and the first spring is movably sleeved on the sliding rod; The adjusting component comprises a lifting ear, the top of the lifting ear is fixedly connected to the bottom of the material storage box, one side of one of the lifting ears is movably connected with a two-way screw rod through a bearing, and the other end of the two-way screw rod passes through another lifting ear and is movably connected through a bearing, one end of the two-way screw rod passing through the lifting ear is fixedly connected with a second screw rod, and the second screw rod is threadedly connected to the end of the connecting rod, and the other end of the second screw rod is fixedly connected with an adjusting button, the side surface of the two-way screw rod is threadedly connected with a movable part, and the end of the movable part is movably sleeved on the sliding rod, and the opposite sides of the movable part are respectively abutted against the opposite sides of the sliding sleeves on both sides of the two-way screw rod, and the bottom of the material storage box is provided with a first slide groove, and the slider is movably connected in the first slide groove; The cam is connected to the bottom of the upper and lower frames, and the cam is connected with the control wheel to move forward and backward, so that the cam can move freely in the lower position, and the control wheel can move freely in the lower position, so that the cam can move freely in the lower position.

[0005] Further preferably, the top of the wave plate is fixedly connected to a base, one side of the base is fixedly connected to a driving motor, the output end of the driving motor is fixedly connected to a first screw rod, the first screw rod is threadedly connected to a movable block and the opposite side of the movable block is fixedly connected to two ends of a lower bracket, a scraper rod is fixedly connected to the inner wall on the opposite side of the lower bracket, and the top of the base is fixedly connected to a table top.

[0006] Further preferably, one end of the limit rod passes through the connecting rod for movably connection, the pitch of the second screw rod is much smaller than the pitch of the bidirectional screw rod, and one end of the fixing member is fixedly connected to one side of the upper bracket.

[0007] Further preferably, the two ends of the lower bracket pass through the opposite side of the base and extend into the base to be connected to the movable block, the inner wall of one side of the base is movably connected to the end of the first screw rod through a bearing, and the top of the corrugated plate is fixedly connected to the bottom inner wall of the table top.

[0008] Further preferably, one end of the push rod passes through one side of the lower bracket and extends into the base to abut against the wave plate.

[0009] Further preferably, the through hole is communicated with a feed opening, and the material storage box is used for containing liquid crystal material.

[0010] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, the first spring and the sliding sleeve in the spacing control component enable the position of each dripping head to be equidistantly adjusted when the bidirectional screw rod rotates, so that substrates of different sizes can be adapted. At the same time, when the dripping head drips the liquid crystal material, the liquid crystal material can be evenly dripped on the surface of the substrate through the wave plate and the push rod, avoiding the accumulation of liquid crystal material in local areas and the lack of liquid crystal material in local areas, so that the scraper rod can evenly coat the liquid crystal material on the surface of the substrate.

[0011] In the present invention, the flow control component and the spacing control component are synchronously adjusted through the adjustment component, so that when coating substrates of different specifications, since the number of drip heads is fixed, when coating a substrate with a smaller area, the drip heads are equidistantly adjusted through multiple first springs and multiple sliding sleeves. At the same time, since the smaller the area of ​​the substrate, the closer the distance between each drip head is, the less liquid crystal material needs to be coated per unit time, so that the movable bar is moved by the second screw and the through hole and the discharge port are misaligned, thereby reducing the flow rate. On the contrary, for a substrate with a larger area, the distance between each drip head is larger, the concentricity of the through hole and the discharge port is higher, and the flow rate per unit time is greater, thereby achieving adjustment of the flow and the coating range according to the specifications of the substrate, making the coating process uniform, avoiding waste caused by adding excessive liquid crystal material, and avoiding subsequent cleaning difficulties caused by excessive material. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The three-dimensional structure of the present invention is shown in FIG. Figure 1 ; Figure 2 The three-dimensional structure of the present invention is shown in FIG. Figure 2 ; Figure 3 The three-dimensional structure of the present invention is shown in FIG. Figure 3 ; Figure 4 Schematic diagram of the explosion structure of the present invention Figure 1 ; Figure 5 Schematic diagram of the explosion structure of the present invention Figure 2 ; Figure 6 It is a schematic diagram of a partial cross-sectional structure of the present invention; Figure 7 It is a schematic diagram of the partial explosion cross-section structure of the present invention.

[0013] In the figure: 1, material storage box; 2, flow control component; 3, spacing control component; 4, adjustment component; 5, swing component; 6, movable block; 7, first screw rod; 8, drive motor; 9, base; 10, table; 11, scraper rod; 201, feed port; 202, movable bar; 203, through hole; 204, connecting rod; 205, limit rod; 301, fixing piece; 302, sliding rod; 303, sliding sleeve; 304, fixing ring ; 305, first spring; 306, drip head; 307, hose; 401, movable part; 402, slider; 403, first slide groove; 404, bidirectional screw rod; 405, second screw rod; 406, adjustment button; 407, lifting ear; 501, upper bracket; 502, push rod; 503, slide bar; 504, lower bracket; 505, second slide groove; 506, extension piece; 507, second spring; 508, corrugated plate. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the present invention.

[0015] See also Figure 1-Figure 7 , the present invention provides a technical solution: a controllable micro-injection device for liquid crystal material, comprising a storage box 1; The flow control component 2 includes a feed opening 201, a plurality of feed openings 201 are provided at the bottom of the material storage box 1 and penetrate into the material storage box 1, a movable bar 202 is movably connected to the inner wall of the bottom of the material storage box 1, a through hole 203 is provided inside the movable bar 202, a connecting rod 204 is fixedly connected to a corner of the top of the through hole 203, and a limiting rod 205 is fixedly connected to one side of the material storage box 1; The spacing control component 3 includes a fixing member 301, a sliding rod 302 is fixedly connected to one side of the two fixing members 301, a plurality of sliding sleeves 303 arranged in a linear array are movably sleeved on the side surface of the sliding rod 302, a fixing ring 304 is fixedly connected to the side surface of the sliding sleeve 303, a dripping head 306 is fixedly sleeved on the inner wall of the fixing ring 304, a hose 307 is fixedly connected to the top of the dripping head 306, and the other end of the hose 307 is fixedly connected to the storage box 1 through the discharge port 201, a first spring 305 is movably connected between every two adjacent sliding sleeves 303, and the first spring 305 is movably sleeved on the sliding rod 302; The adjusting component 4 includes a lifting ear 407, the top of which is fixedly connected to the bottom of the storage box 1, one side of one of the lifting ears 407 is movably connected to a bidirectional screw rod 404 through a bearing, and the other end of the bidirectional screw rod 404 passes through another lifting ear 407 and is movably connected through a bearing, one end of the bidirectional screw rod 404 passing through the lifting ear 407 is fixedly connected to a second screw rod 405, and the second screw rod 405 is threadedly connected to the end of the connecting rod 204, and the other end of the second screw rod 405 is fixedly connected to an adjusting button 406, a movable part is threadedly connected to the side surface of the bidirectional screw rod 404, and the end of the movable part 401 is movably sleeved on the sliding rod 302, and the opposite side of the movable part 401 is respectively abutted against the opposite side of the sliding sleeve 303 on both sides of the bidirectional screw rod 404, and a first sliding groove 403 is provided at the bottom of the storage box 1, and the slider 402 is movably connected in the first sliding groove 403; The swing assembly 5 includes an upper bracket 501, two ends of the upper bracket 501 are respectively fixedly connected to the two sides of the bottom of the storage box 1, one side of the upper bracket 501 is fixedly connected with a push rod 502, the end of the push rod 502 is abutted with a wave plate 508, the bottom of the upper bracket 501 is fixedly connected with a slide bar 503, the bottom of the upper bracket 501 is movably connected with a lower bracket 504, a second slide groove 505 is provided at the top of the lower bracket 504 and the slide bar 503 is movably connected in the second slide groove 505, the longitudinal length of the slide bar 503 is less than the longitudinal length of the second slide groove 505, one side of the lower bracket 504 is fixedly connected with an extension piece 506 and one end of the push rod 502 is movably connected through the extension piece 506, and the side of the extension piece 506 opposite to the upper bracket 501 is movably connected with a second spring 507 and the second spring 507 is movably sleeved on the push rod 502.

[0016] In this embodiment, Figure 3 , Figure 5 and Figure 6 As shown, the top of the wave plate 508 is fixedly connected to a base 9, one side of the base 9 is fixedly connected to a driving motor 8, the output end of the driving motor 8 is fixedly connected to a first screw rod 7, the first screw rod 7 is threadedly connected to a movable block 6, and the opposite side of the movable block 6 is fixedly connected to the two ends of the lower bracket 504, a scraper rod 11 is fixedly connected to the inner wall on the opposite side of the lower bracket 504, and the top of the base 9 is fixedly connected to a table top 10.

[0017] In this embodiment, Figure 1 , Figure 2 and Figure 4 As shown, one end of the limiting rod 205 passes through the connecting rod 204 and is movably connected, the pitch of the second screw rod 405 is much smaller than the pitch of the bidirectional screw rod 404 , and one end of the fixing member 301 is fixedly connected to one side of the upper bracket 501 .

[0018] In this embodiment, Figure 2 , Figure 4 and Figure 5 As shown, the two ends of the lower bracket 504 pass through the opposite side of the base 9 and extend into the base 9 to be connected with the movable block 6. The inner wall of one side of the base 9 is movably connected with the end of the first screw rod 7 through a bearing. The top of the wave plate 508 is fixedly connected with the bottom inner wall of the table 10. When in use, the device is restored to the default position and state, and then the substrate is placed on the table 10. The adjusting knob 406 is rotated according to the width of the substrate, so that the bidirectional screw rod 404 and the second screw rod 405 rotate at the same time. The rotation of the bidirectional screw rod 404 causes the two movable parts 401 to overcome the force of the first spring 305 and approach each other, so that the multiple sliding sleeves 303 are close to each other. At the same time, the rotation of the second screw rod 405 causes the movable bar 202 and the connecting rod 204 to move through the thread, so that the through hole 203 and the discharge port 201 are misaligned, so that the movable bar 202 gradually closes the discharge port 201, so that the flow rate of the discharge port 201 is reduced. When it is adjusted to a suitable position, the material is stored. Liquid crystal material is added above the box 1, and the driving motor 8 is started, so that the driving motor 8 drives the first screw 7 to rotate and the threaded movable block 6 to move, so that the lower bracket 504, the upper bracket 501 and the storage box 1 move laterally together. At this time, the liquid crystal material in the storage box 1 drips onto the surface of the substrate through the hose 307 and the drip head 306, and the liquid crystal material is flattened by the scraper 11, so that the liquid crystal material is coated on the surface of the substrate. While the lower bracket 504, the upper bracket 501 and the storage box 1 move laterally, the end of the push rod 502 is abutted against the curved surface of the wave plate 508 through the force of the second spring 507, so that the push rod 502 allows the flow control component 2, the spacing control component 3 and the adjustment component 4 to perform longitudinal reciprocating swings under the push of the wave plate 508 and the force of the second spring 507. At this time, the path of the drip head 306 is a continuous corrugated shape, so that the liquid crystal material drips evenly on the surface of the substrate.

[0019] In this embodiment, Figure 3 , Figure 4 and Figure 5 As shown, one end of the push rod 502 passes through one side of the lower bracket 504 and extends into the base 9 to abut against the wave plate 508.

[0020] In this embodiment, Figure 3 , Figure 6 and Figure 7 As shown, the through hole 203 is connected to the feed opening 201, and the material storage box 1 is used to contain liquid crystal materials.

[0021] The use method and advantages of the present invention: When the liquid crystal material controllable micro-injection device is used, the working process is as follows: like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, when in use, the device is restored to its default position and state, and then the substrate is placed on the table 10, and the adjusting knob 406 is rotated according to the width of the substrate, so that the bidirectional screw rod 404 and the second screw rod 405 rotate at the same time. The rotation of the bidirectional screw rod 404 causes the two movable parts 401 to overcome the force of the first spring 305 and approach each other, so that the multiple sleeves 303 are close to each other, and at the same time, the second screw rod 405 rotates to cause the movable bar 202 and the connecting rod 204 to move through the thread, so that the through hole 203 and the discharge port 201 are misaligned, so that the movable bar 202 gradually closes the discharge port 201, so that the flow rate of the discharge port 201 is reduced. When it is adjusted to a suitable position, liquid crystal material is added above the storage box 1, and the drive motor 8 is started, so that the drive motor 8 drives the first screw rod 7 to rotate and the screw The movable block 6 connected by the groove moves, so that the lower bracket 504, the upper bracket 501 and the storage box 1 move laterally together. At this time, the liquid crystal material in the storage box 1 drips onto the surface of the substrate through the hose 307 and the drip head 306, and the liquid crystal material is flattened by the scraper 11, so that the liquid crystal material is coated on the surface of the substrate. While the lower bracket 504, the upper bracket 501 and the storage box 1 move laterally, the end of the push rod 502 is abutted against the curved surface of the wave plate 508 through the force of the second spring 507, so that the push rod 502 allows the flow control component 2, the spacing control component 3 and the adjustment component 4 to perform longitudinal reciprocating swings under the push of the wave plate 508 and the force of the second spring 507. At this time, the path of the drip head 306 is a continuous corrugated shape, so that the liquid crystal material drips evenly on the surface of the substrate.

[0022] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A controllable micro-injection device for liquid crystal material, characterized in that: It comprises a material storage box (1); A flow control component (2), the flow control component (2) comprising a feed opening (201), a plurality of the feed openings (201) being provided at the bottom of the material storage box (1) and extending into the material storage box (1), a movable bar (202) being movably connected to the inner wall of the bottom of the material storage box (1), a through hole (203) being provided inside the movable bar (202), a connecting rod (204) being fixedly connected to a top corner of the through hole (203), and a limiting rod (205) being fixedly connected to one side of the material storage box (1); A spacing control component (3), the spacing control component (3) comprising a fixing member (301), a sliding rod (302) being fixedly connected to opposite sides of two fixing members (301), a side surface of the sliding rod (302) being movably sleeved with a plurality of sliding sleeves (303) arranged in a linear array, a side surface of the sliding sleeve (303) being fixedly connected with a fixing ring (304), an inner wall of the fixing ring (304) being fixedly sleeved with a dripping head (306), a top of the dripping head (306) being fixedly connected with a hose (307), and the other end of the hose (307) being fixedly connected with a storage box (1) through a discharge port (201), a first spring (305) being movably connected between each two adjacent sliding sleeves (303), and the first spring (305) being movably sleeved on the sliding rod (302); The adjusting component (4) comprises a lifting ear (407), the top of the lifting ear (407) is fixedly connected to the bottom of the material storage box (1), one side of one of the lifting ears (407) is movably connected to a bidirectional screw rod (404) via a bearing, and the other end of the bidirectional screw rod (404) passes through another lifting ear (407) and is movably connected via a bearing, and one end of the bidirectional screw rod (404) passing through the lifting ear (407) is fixedly connected to a second screw rod (405), and the second screw rod (405) is connected to the connecting rod (20 4), the other end of the second screw rod (405) is fixedly connected with an adjusting button (406), the side surface of the bidirectional screw rod (404) is threadedly connected with a movable part, and the end of the movable part (401) is movably sleeved on the sliding rod (302), and the opposite sides of the movable part (401) are respectively abutted against the opposite sides of the sliding sleeves (303) on both sides of the bidirectional screw rod (404), and the bottom of the storage box (1) is provided with a first sliding groove (403) and the sliding block (402) is movably connected in the first sliding groove (403); The swing assembly (5) comprises an upper bracket (501), the two ends of the upper bracket (501) are respectively fixedly connected to the two sides of the bottom of the storage box (1), one side of the upper bracket (501) is fixedly connected to a push rod (502), the end of the push rod (502) is abutted against a wave plate (508), the bottom of the upper bracket (501) is fixedly connected to a slide bar (503), the bottom of the upper bracket (501) is movably connected to a lower bracket (504), and the top of the lower bracket (504) is provided with a A second slide groove (505) is provided and the slide bar (503) is movably connected in the second slide groove (505); the longitudinal depth of the slide bar (503) is less than the longitudinal depth of the second slide groove (505); an extension piece (506) is fixedly connected to one side of the lower bracket (504) and one end of the push rod (502) passes through the extension piece (506) and is movably connected; a second spring (507) is movably connected to the side of the extension piece (506) opposite to the upper bracket (501), and the second spring (507) is movably sleeved on the push rod (502).

2. A controllable micro-injection device for liquid crystal material according to claim 1, characterized in that: The top of the wave plate (508) is fixedly connected to a base (9), one side of the base (9) is fixedly connected to a drive motor (8), the output end of the drive motor (8) is fixedly connected to a first screw rod (7), the first screw rod (7) is threadedly connected to a movable block (6), and the opposite side of the movable block (6) is fixedly connected to two ends of the lower bracket (504), a scraper rod (11) is fixedly connected to the inner wall of the opposite side of the lower bracket (504), and the top of the base (9) is fixedly connected to a table top (10).

3. The controllable micro-injection device of liquid crystal material according to claim 1, characterized in that: One end of the limit rod (205) passes through the connecting rod (204) and is movably connected thereto; the pitch of the second screw rod (405) is much smaller than the pitch of the bidirectional screw rod (404); and one end of the fixing member (301) is fixedly connected to one side of the upper bracket (501).

4. The controllable micro-injection device of liquid crystal material according to claim 1, characterized in that: The two ends of the lower bracket (504) pass through opposite sides of the base (9) and extend into the base (9) to be connected to the movable block (6); an inner wall of one side of the base (9) is movably connected to the end of the first screw rod (7) via a bearing; and the top of the wave plate (508) is fixedly connected to the bottom inner wall of the table top (10).

5. The controllable micro-injection device of liquid crystal material according to claim 1, characterized in that: One end of the push rod (502) passes through one side of the lower bracket (504) and extends into the base (9) to abut against the wave plate (508).

6. The controllable micro-injection device of liquid crystal material according to claim 1, characterized in that: The through hole (203) is in communication with the material discharge port (201), and the material storage box (1) is used for containing liquid crystal material.

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