A delivery device for liquid photosensitive resin

Abstract

The utility model discloses a conveying device for liquid photosensitive resin, including conveying pipe, conveying pipe one end is with stirring bucket screw joint fixed, its other end is connected with storage bucket, and is equipped with the movable tank in conveying pipe one end, and the expansion cylinder is slid in movable tank, and the outer wall of expansion cylinder is provided with the slot, and the stopper is slid in the slot, and is equipped with air pump no.

Description

Technical Field

[0001] This utility model relates to the technical field of liquid photosensitive resin conveying equipment, and in particular to a conveying device for liquid photosensitive resin. Background Technology

[0002] Liquid photosensitive resin is a polymer material that is cured through photochemical reaction under ultraviolet light irradiation. It is mainly composed of oligomers, photoinitiators, and diluents. Its core characteristic is that after the photoinitiator absorbs ultraviolet light of a specific wavelength, it generates active groups, which triggers the cross-linking polymerization of resin molecules to form a stable solid structure.

[0003] Traditionally, after the liquid photosensitive resin is stirred and processed in a mixing tank, it needs to be transported to various storage tanks. Generally, a delivery pipe is installed at the bottom of the mixing tank, and the other end of the delivery pipe is connected to the storage tank. The delivery pipe is connected to the storage tank by bolts to prevent external collisions or vibrations from causing the delivery pipe to detach from the storage tank. A switch valve is installed on the delivery pipe. After stirring is completed, the switch valve is opened to allow the stirred liquid photosensitive resin in the mixing tank to flow into the storage tank. After the storage tank is full, the switch valve is closed, and the delivery pipe is then separated from the full storage tank. The pipe is then inserted into an empty storage tank to continue the process until all the liquid photosensitive resin in the mixing tank has flowed out.

[0004] However, the delivery pipe is connected to the storage tank by bolts. When changing the storage tank, the personnel need to find tools to remove the bolts and then connect them to the new storage tank, which is labor-intensive. In addition, the output end of the delivery pipe is not protected. When changing the storage tank, it is very easy for too many impurities and dust to adhere to it. When it flows into the storage tank, it is easy to mix with the liquid photosensitive resin, which affects the use of the liquid photosensitive resin. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a liquid photosensitive resin delivery device.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A conveying device for liquid photosensitive resin includes a conveying pipe for connecting a stirring tank and a storage tank. One end of the conveying pipe is screwed and fixed to the stirring tank, and the other end is connected to the storage tank. A movable groove is formed on the inner wall of the end of the conveying pipe away from the stirring tank. An expansion cylinder is slidably arranged in the movable groove along the length of the conveying pipe, and the outer diameter of the expansion cylinder is smaller than the inner diameter of the opening at the top of the storage tank. A slot is formed on the outer wall of the end of the expansion cylinder away from the conveying pipe. A stop block is slidably arranged in the slot along the radial direction of the conveying pipe. A... The system includes two air pumps: one and two. The conveying pipe is externally connected to two air pipes. Air pump one is connected to air pipe one. A telescopic pipe one is located within the movable groove. Air pipe one passes through the movable groove and connects to telescopic pipe one. Air pump two is connected to air pipe two. A telescopic pipe two is located within the slot. One end of telescopic pipe two is connected to the stop block, and the other end is connected to a fixed pipe. One end of the fixed pipe passes through the expansion cylinder and is located within the movable groove. One end of air pipe two passes through the movable groove and connects to the fixed pipe via telescopic pipe three. A baffle is rotatably connected to the outer wall of the end of the conveying pipe furthest from the mixing tank via a rotating rod.

[0007] Preferably, a protective shell is provided on the outer wall of the conveying pipe, and the baffle is covered inside the protective shell.

[0008] Preferably, a side plate is provided on the outer wall of the conveying pipe, the rotating rod is rotatably connected to the side plate, one end of the baffle is connected to the rotating rod, a torsion spring is sleeved on the rotating rod, one end of the torsion spring is connected to the side plate, and the other end is connected to the baffle.

[0009] Preferably, two sets of baffles are provided, respectively located on both sides of the outer wall of the conveying pipe, and each is rotatably connected to the outer wall of the conveying pipe via a rotating rod.

[0010] Preferably, each of the two sets of baffles has a flexible pad at the end away from the end connected to the conveying pipe.

[0011] Preferably, a telescopic cover is provided inside the movable groove along the length of the conveying pipe. The upper end of the telescopic cover is connected to the upper side of the inner wall of the movable groove, and its lower end is connected to the upper side of the expansion cylinder.

[0012] Preferably, a telescopic spring is provided in the slot, with one end of the telescopic spring connected to the inner wall of the slot and the other end connected to the stop block.

[0013] The beneficial effects of this utility model are as follows: By sliding an extension cylinder at the lower end of the conveying pipe to connect with the opening of the storage tank, and sliding a stop block at the lower end of the extension cylinder, which is connected to the stop block by a telescopic tube, and by indirectly connecting an air pump to the telescopic tube, compared with the prior art, this utility model can use the air pump to push the stop block out of the slot by allowing air to enter the telescopic tube. When the lower end of the extension cylinder extends into the storage tank, the stop block can effectively hold the extension cylinder at the opening of the storage tank, avoiding misalignment between the conveying pipe and the storage tank caused by external collisions. It also makes it easier for personnel to connect and separate the conveying pipe and the storage tank. Furthermore, a baffle is rotatably installed at the lower end of the conveying pipe, which, in conjunction with a torsion spring, can block the lower end of the conveying pipe, preventing external impurities from adhering to the inside of the extension cylinder during the movement of the conveying pipe. Attached Figure Description

[0014] Figure 1 This is a schematic diagram illustrating the structure of part of the mechanism when the output pipe connects the mixing tank and the storage tank in one embodiment of the present invention;

[0015] Figure 2 This is an exploded view of a portion of the mechanism on the conveying pipe in one embodiment of the present invention;

[0016] Figure 3 for Figure 2 Enlarged view of section A;

[0017] Figure 4 This is a side sectional view of one embodiment of the present invention, used to show the internal and external parts of the conveying pipe mechanism;

[0018] Figure 5 for Figure 4 Enlarged view of section B;

[0019] Figure 6 for Figure 4 Enlarged view of section C.

[0020] Reference numerals in the attached diagram: 1. Mixing tank; 2. Storage tank; 3. Conveying pipe; 4. Movable trough; 5. Expansion cylinder; 6. Slot; 7. Stop block; 8. Air pump one; 9. Air pump two; 10. Air pipe one; 11. Air pipe two; 12. Telescopic pipe one; 13. Telescopic pipe two; 14. Fixed pipe; 15. Telescopic pipe three; 16. Baffle; 17. Protective shell; 18. Side plate; 19. Rotating rod; 20. Torsion spring; 21. Flexible pad; 22. Telescopic cover; 23. Telescopic spring. Detailed Implementation

[0021] The following description is only a preferred embodiment of the present utility model. The scope of protection is not limited to this embodiment. All technical solutions that fall within the scope of the present utility model should be protected by the present utility model. It should also be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of the present utility model should also be considered within the scope of protection of the present utility model.

[0022] It should be noted that in this document, relational terms such as first and second, or "connecting plate one, connecting plate two," are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0023] The directional terms mentioned in this embodiment, such as "up," "down," "left," and "right," are merely used to help those skilled in the art understand the relationships between various features or parts in conjunction with the accompanying drawings.

[0024] In this embodiment, unless otherwise explicitly specified and limited, the terms "connection" and "fixed" should be interpreted broadly. For example, "fixed" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] like Figures 1 to 6As shown, a conveying device for liquid photosensitive resin includes a conveying pipe 3 connecting a stirring tank 1 and a storage tank 2. The upper end of the conveying pipe 3 is screwed to the outlet end of the stirring tank 1, and the lower end of the conveying pipe 3 is connected to the storage tank 2. The upper end of the storage tank 2 has an opening for the liquid photosensitive resin to enter. A movable groove 4 is formed on the inner wall of the lower end of the conveying pipe 3. An expansion cylinder 5 is slidably arranged in the movable groove 4 along the length of the conveying pipe 3. The outer diameter of the expansion cylinder 5 is smaller than the inner diameter of the opening at the upper end of the storage tank 2. A slot 6 is formed on the outer wall of the end of the expansion cylinder 5 away from the conveying pipe 3. A U-shaped stop 7 is slidably arranged in the groove 6 along the radial direction of the conveying pipe 3. Each of the two sets of slots 6 is provided with a telescopic tube 2. 13. One end of the telescopic tube 13 is connected to the inner wall of the stop block 7, and the other end is connected to the fixed tube 14. The fixed tube 14 passes through the expansion tube 5 and is located in the movable groove 4. One end of the fixed tube 14 located in the movable groove 4 is connected to the telescopic tube 15. Air pump 8 and air pump 9 are installed on the upper outer wall of the conveying pipe 3. Air pipe 10 and air pipe 11 are installed outside the conveying pipe 3. Air pump 8 and air pipe 10 are connected, and air pump 9 and air pipe 11 are connected. Two sets of telescopic tubes 12 are arranged opposite to each other in the movable groove 4. The opposite ends of air pipe 10 are inserted into the movable groove 4 and connected to the two sets of telescopic tubes 12. The opposite ends of air pipe 11 are inserted into the movable groove 4 and connected to the two sets of telescopic tubes 15.

[0026] Side plates 18 are provided on opposite sides of the lower outer wall of the conveying pipe 3. A baffle 16 is rotatably connected to the side plate 18 via a rotating rod 19. A torsion spring 20 is sleeved on the rotating rod 19. One end of the torsion spring 20 is connected to the side plate 18, and the other end is connected to the baffle 16. A protective shell 17 is provided on the lower outer wall of the conveying pipe 3. The baffle 16 is covered inside the protective shell 17. A flexible pad 21 is provided on each of the two sets of baffles 16 away from the end connected to the conveying pipe 3. It should be noted that the flexible pad 21 can also be a brush strip. Its purpose is to ensure that when the surfaces of the two sets of baffles 16 are attached to the lower surface of the conveying pipe 3, the adjacent side is blocked by the brush strip to prevent excessive entry of external impurities and dust. A telescopic cover 22 is provided inside the movable groove 4 along the length of the conveying pipe 3. The upper end of the telescopic cover 22 is connected to the upper side of the inner wall of the movable groove 4, and its lower end is connected to the upper side of the expansion cylinder 5.

[0027] A telescopic spring 23 is horizontally installed in the slot 6. One end of the telescopic spring 23 is connected to the inner wall of the slot 6, and the other end is connected to the stop block 7.

[0028] It should be noted that a switch valve (not shown in the attached diagram) is provided at the connection between the conveying pipe 3 and the mixing tank 1. Its purpose is to be able to close or open the channel between the mixing tank 1 and the conveying pipe 3.

[0029] When the mixing tank 1 and the storage tank 2 are connected, the lower side of the protective shell 17 is attached to the upper side of the storage tank 2. The lower end of the expansion tube 5 is located inside the upper part of the storage tank 2 through the opening. Both air pump 1 8 and air pump 2 9 are in the air output state. At this time, the telescopic tube 2 13 is inflated and extended, pushing the front end of the stop block 7 out of the slot 6. The telescopic spring 23 is in the stretched state, the telescopic cover 22 is in the stretched state, and both the telescopic tube 1 12 and the telescopic tube 2 13 in the movable slot 4 are in the stretched state. The lower end of the expansion tube 5 is stuck at the opening of the storage tank. At this time, the switch valve is opened, and the liquid photosensitive resin will flow into the storage tank 2 through the delivery tube 3.

[0030] Once the storage tank 2 has reached the required amount, close the valve to stop the liquid photosensitive resin from entering. Then, switch air pump 8 and air pump 9 from outlet to inlet. Telescopic tubes 12 and 13, along with the telescopic cover 22, begin to retract, expelling the gas. Telescopic tube 13 and the telescopic spring 23 retract synchronously, pulling the stop block 7 back into the slot 6. After the retraction is complete, the expansion cylinder 5 is pulled upward by telescopic tubes 12 and 13, along with the telescopic cover 22, so that the lower side of the expansion cylinder 5 is flush with the lower side of the delivery pipe 3. Then, the torsion spring 20 resets, causing the baffle 16 to rotate around the rotating rod 19 at a certain angle, so that the surface of the baffle 16 fits against the lower side of the conveying pipe 3, and the flexible pads 21 on the two sets of baffles 16 fit together. At this time, personnel can push open the full storage tank 2 and move the empty storage tank 2 in. Then, the air pump 1 8 and air pump 2 9 are restarted in sequence. Air pump 1 8 introduces air into the telescopic pipe 12, first pushing the lower end of the extension cylinder 5 through the opening of the storage tank 2 into the storage tank 2, and then air pump 2 9 is started.

[0031] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A conveying device for liquid photosensitive resin, comprising a conveying pipe (3) for connecting a stirring tank (1) and a storage tank (2), one end of the conveying pipe (3) being screwed to the outlet end of the stirring tank (1), and the other end being connected to the storage tank (2). Its features are, The inner wall of the end of the conveying pipe (3) away from the mixing tank (1) is provided with a movable groove (4). An expansion cylinder (5) is slidably arranged in the movable groove (4) along the length direction of the conveying pipe (3), and the outer diameter of the expansion cylinder (5) is smaller than the inner diameter of the opening at the top of the storage tank (2). The outer wall of the expansion cylinder (5) away from the conveying pipe (3) has a slot (6), and a stop block (7) is slidably arranged in the slot (6) along the radial direction of the conveying pipe (3); The upper outer wall of the conveying pipe (3) is provided with an air pump 1 (8) and an air pump 2 (9). The outside of the conveying pipe (3) is provided with an air pipe 1 (10) and an air pipe 2 (11). The air pump 1 (8) is connected to the air pipe 1 (10). The movable groove (4) is provided with a telescopic pipe 1 (12). The air pipe 1 (10) passes through the movable groove (4) and is connected to the telescopic pipe 1 (12). The second air pump (9) is connected to the second air pipe (11). The slot (6) is provided with a second telescopic pipe (13). One end of the second telescopic pipe (13) is connected to the stop block (7), and the other end is connected to the fixed pipe (14). One end of the fixed pipe (14) passes through the expansion tube (5) and is located in the movable slot (4). One end of the second air pipe (11) passes into the movable slot (4) and is connected to the fixed pipe (14) through the third telescopic pipe (15). The outer wall of the end of the conveying pipe (3) away from the mixing tank (1) is rotatably connected to a baffle (16) via a rotating rod (19).

2. The conveying device for liquid photosensitive resin according to claim 1, characterized in that, A protective shell (17) is provided on the outer wall of the conveying pipe (3), and the baffle (16) is covered inside the protective shell (17).

3. The conveying device for liquid photosensitive resin according to claim 1, characterized in that, A side plate (18) is provided on the outer wall of the conveying pipe (3). The rotating rod (19) is rotatably connected to the side plate (18). One end of the baffle (16) is connected to the rotating rod (19). A torsion spring (20) is sleeved on the rotating rod (19). One end of the torsion spring (20) is connected to the side plate (18), and the other end is connected to the baffle (16).

4. The conveying device for liquid photosensitive resin according to claim 1, characterized in that, Two sets of baffles (16) are provided, respectively on both sides of the outer wall of the conveying pipe (3), and each is rotatably connected to the outer wall of the conveying pipe (3) through a rotating rod (19).

5. A conveying device for liquid photosensitive resin according to claim 4, characterized in that, Each of the two sets of baffles (16) has a flexible pad (21) at the end that is connected to the conveying pipe (3).

6. The conveying device for liquid photosensitive resin according to claim 1, characterized in that, A telescopic cover (22) is provided inside the movable groove (4) along the length of the conveying pipe (3). The upper end of the telescopic cover (22) is connected to the upper side of the inner wall of the movable groove (4), and its lower end is connected to the upper side of the expansion cylinder (5).

7. The conveying device for liquid photosensitive resin according to claim 1, characterized in that, A telescopic spring (23) is provided in the slot (6). One end of the telescopic spring (23) is connected to the inner wall of the slot (6), and the other end is connected to the stop block (7).

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