Quantitative discharging device for solvent-free epoxy anticorrosive paint production

Abstract

The application discloses a kind of solventless epoxy anticorrosive paint production with quantitative discharging device, it is related to paint production technical field.The present application includes bottom table, the top of the bottom table is fixed with fixed frame, the top of the fixed frame is fixed with storage tank, the bottom of the storage tank is fixed with conveying pump, the side of the fixed frame is provided with quantitative device, the quantitative device includes side round frame fixed in the side of fixed frame, a plurality of quantitative cylinders are fixed on the top of side round frame, plug disc is slidably installed in quantitative cylinder, T-shaped column is fixed on the top of plug disc, U-shaped round frame is fixed on the top of side round frame.The present application is set by quantitative device, so that screw rod, screw ring, U-shaped round frame, L-shaped quantitative rod, pointer cooperate to drive L-shaped quantitative rod to limit the upward moving distance of T-shaped column to control the injection amount of paint in quantitative cylinder, so that paint in quantitative cylinder can be quantitatively discharged according to need.

Description

Technical Field

[0001] This invention relates to the field of coating production technology, specifically to a quantitative discharging device for the production of solvent-free epoxy anti-corrosion coatings. Background Technology

[0002] Solvent-free epoxy anti-corrosion coatings are environmentally friendly coatings primarily used for corrosion protection of metal, concrete, and other surfaces. The coating processing and production process requires a lot of equipment, and packaging is necessary during production, necessitating quantitative delivery.

[0003] Chinese patent CN218890512U discloses a quantitative dispensing device for paint production, including a storage tank with a dispensing pipe on its side. The storage tank and the dispensing pipe are connected by a check pipe. An adjusting pipe extending into the dispensing pipe is located at the top of the dispensing pipe, and a sealing diaphragm is installed on the adjusting pipe inside the dispensing pipe. A dispensing air pump connected to the adjusting pipe is located at the top of the storage tank. In this quantitative dispensing device for paint production, the user can rotate the adjusting ring at the top of the adjusting pipe, thereby displacing the sealing diaphragm inside the adjusting pipe and changing the volume of the cavity inside the adjusting pipe to achieve quantitative dispensing. The dispensing air pump draws paint from the storage tank into the cavity until a level sensor detects the paint and transmits a signal to the dispensing air pump, causing the pump to reverse and inject air into the cavity, extruding the paint from the dispensing pipe into the filling bottle below.

[0004] However, the current quantitative dispensing device has the following problems: when injecting the coating into the dispensing pipe, it is not convenient to purge the air in the dispensing pipe before performing the quantitative dispensing operation. The air in the dispensing pipe will occupy a certain space, resulting in the actual amount of coating delivered to the packaging container being less than the set quantitative amount. This will cause insufficient coating quantity, which will not meet the packaging specification requirements, and thus affect production efficiency and product quality. Therefore, we propose a quantitative dispensing device for the production of solvent-free epoxy anti-corrosion coatings. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a quantitative discharging device for the production of solvent-free epoxy anti-corrosion coatings, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a quantitative discharging device for the production of solvent-free epoxy anti-corrosion coatings, comprising a base platform, a fixed frame fixed to the top of the base platform, a storage tank fixed to the top of the fixed frame, a conveying pump fixed to the bottom of the storage tank, and a quantitative device provided on the side of the fixed frame. The quantitative device includes a side circular frame fixed to the side of the fixed frame, several quantitative cylinders uniformly fixed to the top of the side circular frame, a stopper plate slidably installed inside the quantitative cylinders, a T-shaped column fixed to the top of the stopper plate, and a component fixed to the side circular frame. The top U-shaped circular frame and the screw rotatably mounted on the top of the side circular frame are connected. The bottom of the metering cylinder is equipped with a discharge device, and the bottom of the side circular frame is equipped with a feeding assembly. The T-shaped column penetrates the top of the metering cylinder, and a spring is provided between the T-shaped column and the top of the metering cylinder. The screw is driven by a motor, and the external thread of the screw is connected to a threaded ring, which is slidably mounted on the outside of the U-shaped circular frame. Several inverted L-shaped metering rods are evenly fixed on the outer circumference of the threaded ring. A pressing device for pressing the T-shaped column is provided on one side of the top of the side circular frame.

[0007] According to the above technical solution, the discharge component includes a discharge pipe fixed at the center of the bottom of the metering cylinder, and an electrically controlled ball valve is fixed at the bottom of the discharge pipe. The electrically controlled ball valve is used to control the opening and closing of the discharge pipe.

[0008] According to the above technical solution, the pressing component includes an electric push rod. The fixed end of the electric push rod is fixed to the top side of the side round frame. A small inner diameter pressure ring is fixed to the top of the telescopic end of the electric push rod. A large inner diameter pressure ring is fixed to the bottom of the small inner diameter pressure ring by a spring. The large inner diameter pressure ring is slidably installed on the outer wall of the telescopic end of the electric push rod. The top of the T-shaped column is located on the movement trajectory of the large inner diameter pressure ring.

[0009] According to the above technical solution, the horizontal support of the L-shaped metering rod is located on the movement trajectory of the T-shaped column, and several pointers are evenly fixed on the outer circumference of the top of the U-shaped circular frame, and scale lines are opened on the outer wall of the L-shaped metering rod.

[0010] According to the above technical solution, the feeding assembly includes a ring tube fixed to the bottom of the side circular frame, an injection tube fixed to the side of the ring tube, the injection tube being fixedly connected to the discharge end of the conveying pump, and several one-way tubes being evenly fixed to the top circumference of the ring tube, the one-way tubes being fixedly connected to the bottom of the metering cylinder, and the one-way tubes being used to control the feeding of the metering cylinder.

[0011] According to the above technical solution, a push column is slidably installed through the top of the T-shaped column, and the push column vertically penetrates the plug disc. A spring is provided between the push column and the top of the T-shaped column. The outer diameter of the push column is equal to the inner diameter of the discharge pipe. The push column is located on the movement trajectory of the small inner diameter pressure ring.

[0012] According to the above technical solution, an L-shaped limiting rod is fixed to the top of the T-shaped column near the side of the U-shaped frame. The L-shaped limiting rod is used to restrict the upward movement of the push column.

[0013] According to the above technical solution, an anti-drip device is provided at the side circular frame. The anti-drip device includes an L-shaped elastic telescopic rod. The top of the vertical rod of the L-shaped elastic telescopic rod is fixed to the outer wall of the telescopic end of the electric push rod. A pull ring is fixed to the side of the horizontal support rod of the L-shaped elastic telescopic rod. A sliding plate is uniformly and radially slidably installed on the bottom circumference of the side circular frame. A baffle is fixed to the bottom of the sliding plate. The baffle is located below the liquid outlet of the electric ball valve. The sliding plate and the outer wall of the pull ring are hinged together by a hinge rod.

[0014] According to the above technical solution, the bottom of the pull ring is fixed with a ring frame by a bracket. The ring frame is composed of multiple rings. Both sides of each ring of the ring frame are penetrated and fixed with an elastic telescopic column. The telescopic end of the elastic telescopic column is fixed with an inclined plate on the side near the center of each ring of the ring frame.

[0015] This invention provides a quantitative discharging device for the production of solvent-free epoxy anti-corrosion coatings. It has the following beneficial effects:

[0016] (1) The present invention uses a metering device to control the amount of paint injected into the metering cylinder by using a screw, threaded ring, U-shaped frame, L-shaped metering rod and pointer to control the upward movement distance of the T-shaped column. This allows the paint inside the metering cylinder to be metered as needed. At the same time, when the paint pushes the stopper plate inside the metering cylinder, the air entry space is restricted before the paint enters. This process of gradually filling the paint into the metering cylinder can effectively avoid air residue in the metering cylinder. Compared with the traditional method of directly injecting paint, this method helps to prevent air from entering the metering cylinder, thereby avoiding the problem of insufficient paint quantity due to air occupying space during paint delivery.

[0017] (2) The present invention uses a large inner diameter pressure ring, a T-shaped column, a stopper plate, a metering cylinder and an electric push rod to make the small inner diameter pressure ring push the push column downward. The push column moves into the inside of the discharge pipe and pushes out the residual paint in the discharge pipe. This is crucial to ensuring the accuracy of each metering discharge, thereby avoiding the problem that any residual paint will cause inaccuracy in the next metering discharge and affect the final packaging quantity.

[0018] (3) By setting up an anti-drip device, the electric push rod, L-shaped elastic telescopic rod, pull ring, hinge rod and slide plate work together to drive the baffle to form a shield below the liquid outlet of the electric ball valve. Thus, when the liquid outlet of the electric ball valve does not need to flow out, the shielding effect of the baffle can effectively prevent the paint from dripping unintentionally, thereby keeping the production area clean and reducing subsequent cleaning work. At the same time, the pull ring, ring frame and elastic telescopic column work together to drive the inclined plate to press against the top edge of the receiving tank, thereby enabling the inclined plate to provide additional support and enhance the stability of the receiving tank below the liquid outlet of the electric ball valve. This avoids the problem of the receiving tank shifting or shaking due to the impact force generated by the pressure change when the paint is sprayed out. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the entire invention;

[0020] Figure 2 This is a schematic diagram of a partial structure of the present invention;

[0021] Figure 3 This is a partial cross-sectional schematic diagram of the quantitative device of the present invention. Figure 1 ;

[0022] Figure 4 This is a partial cross-sectional schematic diagram of the quantitative device of the present invention. Figure 2 ;

[0023] Figure 5 This is a schematic diagram of the electric actuator in the telescopic state of the present invention;

[0024] Figure 6 This is a schematic diagram of the anti-drip device of the present invention. Figure 1 ;

[0025] Figure 7 This is a schematic diagram of the anti-drip device of the present invention. Figure 2 ;

[0026] Figure 8 This is a schematic diagram of the metering cylinder of the present invention.

[0027] In the diagram: 1. Base platform; 2. Conveying pump; 3. Fixing frame; 4. Storage tank; 5. Injection assembly; 51. Injection pipe; 52. One-way pipe; 53. Ring pipe; 6. Metering device; 61. Side circular frame; 62. Threaded ring; 63. Screw; 64. U-shaped circular frame; 65. L-shaped metering rod; 66. Pointer; 67. Metering cylinder; 68. T-shaped column; 69. Stopper disc; 610. Electric push rod; 611. Large inner diameter pressure ring; 612. Small inner diameter pressure ring; 613. Push column; 614. L-shaped limiting rod; 615. Discharge pipe; 616. Electric ball valve; 7. Anti-drip device; 71. Pull ring; 72. Hinge rod; 73. Slide plate; 74. Baffle; 75. L-shaped elastic telescopic rod; 76. Ring frame; 77. Elastic telescopic column; 78. Inclined plate. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0029] Please see Figure 1 - Figure 8One embodiment of the present invention is: a quantitative dispensing device for producing solvent-free epoxy anti-corrosion coatings, comprising a base platform 1, a fixing frame 3 fixed to the top of the base platform 1, a storage tank 4 fixed to the top of the fixing frame 3, a conveying pump 2 fixed to the bottom of the storage tank 4, a quantitative device 6 provided on the side of the fixing frame 3, the quantitative device 6 comprising a side circular frame 61 fixed to the side of the fixing frame 3, a plurality of quantitative cylinders 67 circumferentially fixed to the top of the side circular frame 61, a stopper plate 69 slidably installed inside the quantitative cylinders 67, a T-shaped column 68 fixed to the top of the stopper plate 69, a U-shaped circular frame 64 fixed to the top of the side circular frame 61, and a screw 63 rotatably installed on the top of the side circular frame 61, and a bottom of the quantitative cylinders 67 being provided with The discharge component includes a feeding assembly 5 at the bottom of the side circular frame 61, a T-shaped column 68 penetrating the top of the metering cylinder 67, and a spring between the T-shaped column 68 and the top of the metering cylinder 67. A screw 63 is driven by a motor, and a threaded ring 62 is threadedly connected to the external thread of the screw 63. The threaded ring 62 is slidably mounted on the outside of the U-shaped circular frame 64. Several inverted L-shaped metering rods 65 are evenly fixed to the outer circumference of the threaded ring 62. A pressing component for pressing the T-shaped column 68 is provided on one side of the top of the side circular frame 61. The discharge component includes a discharge pipe 615 fixed to the center of the bottom of the metering cylinder 67, and an electrically controlled ball valve 616 fixed to the bottom of the discharge pipe 615. The electrically controlled ball valve 616 controls the discharge pipe 615. The opening and closing mechanism includes an electric push rod 610. The fixed end of the electric push rod 610 is fixed to the top side of the side circular frame 61. A small inner diameter pressure ring 612 is fixed to the top of the telescopic end of the electric push rod 610. A large inner diameter pressure ring 611 is fixed to the bottom of the small inner diameter pressure ring 612 by a spring. The large inner diameter pressure ring 611 is slidably installed on the outer wall of the telescopic end of the electric push rod 610. The top of the T-shaped column 68 is located on the movement trajectory of the large inner diameter pressure ring 611. The horizontal support of the L-shaped metering rod 65 is located on the movement trajectory of the T-shaped column 68. Several pointers 66 are evenly fixed on the circumference of the top outer wall of the U-shaped circular frame 64. Scale lines are opened on the outer wall of the L-shaped metering rod 65. The filling assembly 5 includes components fixed to the side... The bottom of the circular frame 61 has an annular tube 53, and an injection tube 51 is fixed to the side of the annular tube 53. The injection tube 51 is fixedly connected to the discharge end of the conveying pump 2. Several one-way tubes 52 are evenly fixed to the top circumference of the annular tube 53. The one-way tubes 52 are fixedly connected to the bottom of the metering cylinder 67. The one-way tubes 52 are used to control the feeding of the metering cylinder 67. Through the above structure, the screw 63 drives the threaded ring 62 to move the L-shaped metering rod 65 upward. The pointer 66 will indicate the scale on the L-shaped metering rod 65, so that the operator can determine the position of the L-shaped metering rod 65. In this way, the L-shaped metering rod 65 can limit the upward movement distance of the T-shaped column 68 to control the amount of paint injected into the metering cylinder 67.

[0030] A pusher 613 is slidably mounted through the top of the T-shaped column 68, and the pusher 613 vertically penetrates the stopper plate 69. The bottom surface of the pusher 613 and the bottom surface of the stopper plate 69 are on the same horizontal plane. A spring is provided between the pusher 613 and the top of the T-shaped column 68. The outer diameter of the pusher 613 is equal to the inner diameter of the discharge pipe 615. The pusher 613 is located on the movement trajectory of the small inner diameter pressure ring 612. Through the above structure, the small inner diameter pressure ring 612 pushes the pusher 613 to push out the residual paint in the discharge pipe 615. This is crucial to ensuring the accuracy of each quantitative discharge.

[0031] An L-shaped limiting rod 614 is fixed to the top of the T-shaped column 68 on the side near the U-shaped frame 64. The L-shaped limiting rod 614 is used to limit the upward movement of the push column.

[0032] In use, first, place the receiving tank below the discharge pipe 615. Then, drive the screw 63 to rotate via the motor. The screw 63 drives the threaded ring 62 to move upward along the outside of the U-shaped frame 64. The threaded ring 62 drives the L-shaped metering rod 65 to move upward. The pointer 66 will indicate the scale on the L-shaped metering rod 65, allowing the operator to determine the position of the L-shaped metering rod 65. This allows the L-shaped metering rod 65 to limit the upward movement distance of the T-shaped column 68, thereby controlling the amount of paint injected into the metering cylinder 67. The paint is fed into storage tank 4 through the inlet. The delivery pump 2 is then started, transferring the paint from storage tank 4 to injection pipe 51. Injection pipe 51, through ring pipe 53, injects the paint into metering cylinder 67. The paint injected into metering cylinder 67 pushes stopper disc 69 upwards along the inside of metering cylinder 67. Stopper disc 69 pushes T-shaped column 68 upwards, and T-shaped column 68 pulls a spring. The L-shaped metering rod 65 restricts the upward movement of T-shaped column 68, allowing the paint inside metering cylinder 67 to be metered as needed. Simultaneously, when the paint pushes stopper disc 69 inside metering cylinder 67, air entry is restricted before the paint enters. This gradual filling process effectively avoids air residue inside metering cylinder 67. Compared to the traditional direct paint injection method, this method helps prevent air from entering metering cylinder 67, thus avoiding insufficient paint quantity due to air occupying space during paint delivery. When it is necessary to discharge paint from metering cylinder 67, the... Open the electrically controlled ball valve 616 and start the electric push rod 610. The telescopic end of the electric push rod 610 retracts, and the telescopic end of the electric push rod 610 drives the small inner diameter pressure ring 612 to move downward. The small inner diameter pressure ring 612 drives the large inner diameter pressure ring 611 downward through the second spring. The large inner diameter pressure ring 611 pushes the T-shaped column 68 to drive the stopper disc 69 to move downward along the inside of the metering cylinder 67. At this time, the stopper disc 69 squeezes the paint out of the metering cylinder 67. The paint is discharged through the discharge pipe 615 and flows into the receiving tank. At this time, the quantitative discharge operation of the paint is completed.

[0033] It should be noted that by conveying the coating through the delivery pump 2, the coating can overcome the gravity of the stopper disc 69, the elastic resistance of the spring 1, and the friction between the stopper disc 69 and the metering cylinder 67, thus causing the stopper disc to move upward.

[0034] It should be noted that after each discharge of coating material from the metering cylinder 67, the electric push rod 610 is activated to reset and move. The telescopic end of the electric push rod 610 drives the small inner diameter pressure ring 612 and the large inner diameter pressure ring 611 to move upward. The large inner diameter pressure ring 611 no longer presses against the T-shaped column 68. Under the action of the gravity of the stopper plate 69 and the tension of the spring, the T-shaped column 68 will drive the stopper plate 69 to the lowest position inside the metering cylinder 67, thereby avoiding the presence of air residue inside the metering cylinder 67.

[0035] During the process where the large inner diameter pressure ring 611 pushes the T-shaped post 68, causing the stopper disc 69 to move downwards along the inside of the metering cylinder 67, the stopper disc 69 and the T-shaped post 68 will stop moving when they reach the lowest position inside the metering cylinder 67 (e.g., Figure 5 As shown, as the telescopic end of the electric push rod 610 continues to move downward, it drives the small inner diameter pressure ring 612 to move downward. At this time, the small inner diameter pressure ring 612 and the large inner diameter pressure ring 611 will squeeze the spring 2, and the small inner diameter pressure ring 612 will push the push column 613 downward. The push column 613 moves into the interior of the discharge pipe 615, and the push column 613 pushes out the residual paint in the discharge pipe 615. This is crucial to ensuring the accuracy of each quantitative discharge, thereby avoiding the problem that any residual paint will cause inaccuracy in the next quantitative discharge and affect the final packaging quantity.

[0036] It should be noted that the L-shaped limiting rod 614 restricts the upward movement of the push rod 613, thereby ensuring that the bottom surface of the push rod 613 and the bottom surface of the stopper 69 are always on the same horizontal plane.

[0037] Please see Figure 1 - Figure 8Based on the above embodiments, in another embodiment of the present invention, a drip-proof device 7 is provided at the side circular frame 61. The drip-proof device 7 includes an L-shaped elastic telescopic rod 75. The top of the vertical rod of the L-shaped elastic telescopic rod 75 is fixed to the outer wall of the telescopic end of the electric push rod 610. A pull ring 71 is fixed to the side of the horizontal support rod of the L-shaped elastic telescopic rod 75. A sliding plate 73 is uniformly and radially slidably installed on the bottom circumference of the side circular frame 61. A baffle 74 is fixed to the bottom of the sliding plate 73. The baffle 74 is located below the liquid outlet of the electric ball valve 616. The sliding plate 73 and the outer wall of the pull ring 71 are hinged together by a hinge rod 72. With the above structure, the baffle 74 forms a shield below the liquid outlet of the electric ball valve 616, so that when the liquid outlet of the electric ball valve 616 does not need the paint to flow out, the shielding effect of the baffle 74 can effectively prevent the paint from dripping unintentionally.

[0038] The bottom of the pull ring 71 is fixed with a ring frame 76 by a bracket. The ring frame 76 is composed of multiple rings. Each ring of the ring frame 76 has an elastic telescopic column 77 that runs through and is fixed on both sides. The telescopic end of the elastic telescopic column 77 is fixed with an inclined plate 78 near the center of the ring of the ring frame 76. With the above structure, the elastic telescopic column 77 will drive the inclined plate 78 to press against the top edge of the receiving tank, so that the inclined plate 78 can provide additional support and enhance the stability of the receiving tank below the liquid outlet of the electric ball valve 616.

[0039] In use, each time the telescopic end of the electric push rod 610 moves downward, it drives the L-shaped elastic telescopic rod 75 to move downward as well. The L-shaped elastic telescopic rod 75 drives one end of the hinge rod 72 downward through the pull ring 71. The other end of the hinge rod 72 pulls the slide plate 73, causing the baffle 74 to move towards the center of the side circular frame 61. At this time, the baffle 74 no longer obstructs the liquid outlet of the electrically controlled ball valve 616, and the coating can be discharged from the discharge pipe 615 and flow into the receiving tank. It should be noted that the L-shaped elastic telescopic rod 75 can adaptively retract during operation, thereby avoiding any interference with the electric push rod 610. The use of this device causes motion interference. Each time the telescopic end of the electric push rod 610 resets and moves upward, the telescopic end of the electric push rod 610 drives the L-shaped elastic telescopic rod 75 to move upward as well. The L-shaped elastic telescopic rod 75 drives one end of the hinge rod 72 to move upward through the pull ring 71. The other end of the hinge rod 72 pushes the slide plate 73 to drive the baffle 74 to move away from the center of the side round frame 61. At this time, the baffle 74 forms a shield below the outlet of the electric ball valve 616. Thus, when the outlet of the electric ball valve 616 does not need the paint to flow out, the shielding effect of the baffle 74 can effectively prevent the paint from dripping unintentionally, thereby keeping the production area clean and reducing subsequent cleaning work.

[0040] During each downward movement of the pull ring 71 driven by the L-shaped elastic telescopic rod 75, the pull ring 71 pushes the ring frame 76 to move the elastic telescopic column 77 downward as well. The elastic telescopic column 77 will cause the inclined plate 78 to press against the top edge of the receiving tank, thereby enabling the inclined plate 78 to provide additional support and enhance the stability of the receiving tank below the outlet of the electric ball valve 616. This avoids the problem of the receiving tank shifting or shaking due to the impact force generated by pressure changes when the paint is sprayed.

[0041] It should be noted that as the pull ring 71 continues to push the ring frame 76 downward, the top edge of the receiving tank will push the inclined plate 78 against the telescopic end of the elastic telescopic column 77 to adaptively contract.

[0042] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A quantitative discharging device for producing solvent-free epoxy anti-corrosion coatings, comprising a base platform (1), characterized in that: A fixed frame (3) is fixed to the top of the base (1), a storage tank (4) is fixed to the top of the fixed frame (3), a conveying pump (2) is fixed to the bottom of the storage tank (4), and a metering device (6) is provided on the side of the fixed frame (3). The metering device (6) includes a side circular frame (61) fixed to the side of the fixed frame (3), several metering cylinders (67) evenly fixed to the top of the side circular frame (61), a stopper plate (69) slidably installed inside the metering cylinder (67), a T-shaped column (68) fixed to the top of the stopper plate (69), a U-shaped circular frame (64) fixed to the top of the side circular frame (61), and a screw (6) rotatably installed on the top of the side circular frame (61). 3) The bottom of the metering cylinder (67) is provided with a discharge part, the bottom of the side round frame (61) is provided with a feeding component (5), the T-shaped column (68) penetrates the top of the metering cylinder (67), a spring is provided between the T-shaped column (68) and the top of the metering cylinder (67), the screw (63) is driven by a motor, the screw (63) is connected to a threaded ring (62) by an external thread, and the threaded ring (62) is slidably installed on the outside of the U-shaped round frame (64), and several inverted L-shaped metering rods (65) are evenly fixed on the outer circumference of the threaded ring (62), and a pressing part for pressing the T-shaped column (68) is provided on one side of the top of the side round frame (61); The horizontal support of the L-shaped metering rod (65) is located on the movement trajectory of the T-shaped column (68). Several pointers (66) are evenly fixed on the outer circumference of the top of the U-shaped frame (64). The outer wall of the L-shaped metering rod (65) is provided with scale lines. The screw (63) drives the threaded ring (62) to move upward along the outside of the U-shaped frame (64). The threaded ring (62) drives the L-shaped metering rod (65) to move upward. The pointers (66) will indicate the scale on the L-shaped metering rod (65), so that the staff can determine the position of the L-shaped metering rod (65). In turn, the L-shaped metering rod (65) can limit the upward movement distance of the T-shaped column (68) to control the amount of paint injected into the metering cylinder (67).

2. The quantitative discharging device for producing solvent-free epoxy anti-corrosion coatings according to claim 1, characterized in that: The discharge component includes a discharge pipe (615) fixed at the center of the bottom of the metering cylinder (67), and an electrically controlled ball valve (616) is fixed at the bottom of the discharge pipe (615). The electrically controlled ball valve (616) is used to control the opening and closing of the discharge pipe (615).

3. The quantitative discharging device for producing solvent-free epoxy anti-corrosion coatings according to claim 1, characterized in that: The pressing component includes an electric push rod (610). The fixed end of the electric push rod (610) is fixed to the top side of the side round frame (61). A small inner diameter pressure ring (612) is fixed to the top of the telescopic end of the electric push rod (610). A large inner diameter pressure ring (611) is fixed to the bottom of the small inner diameter pressure ring (612) by a spring. The large inner diameter pressure ring (611) is slidably installed on the outer wall of the telescopic end of the electric push rod (610). The top of the T-shaped column (68) is located on the movement trajectory of the large inner diameter pressure ring (611).

4. The quantitative discharging device for producing solvent-free epoxy anti-corrosion coatings according to claim 1, characterized in that: The feeding assembly (5) includes a ring tube (53) fixed to the bottom of the side round frame (61). An injection tube (51) is fixed to the side of the ring tube (53). The injection tube (51) is fixedly connected to the discharge end of the delivery pump (2). Several one-way tubes (52) are evenly fixed to the top circumference of the ring tube (53). The one-way tubes (52) are fixedly connected to the bottom of the metering cylinder (67). The one-way tubes (52) are used to control the feeding of the metering cylinder (67).

5. The quantitative discharging device for producing solvent-free epoxy anti-corrosion coatings according to claim 1, characterized in that: A pusher (613) is slidably mounted through the top of the T-shaped column (68), and the pusher (613) vertically penetrates the stopper plate (69). A spring is provided between the top of the pusher (613) and the top of the T-shaped column (68). The outer diameter of the pusher (613) is equal to the inner diameter of the discharge pipe (615). The pusher (613) is located on the movement trajectory of the small inner diameter pressure ring (612).

6. The quantitative discharging device for producing solvent-free epoxy anti-corrosion coatings according to claim 5, characterized in that: An L-shaped limiting rod (614) is fixed to the top of the T-shaped column (68) on the side near the U-shaped frame (64). The L-shaped limiting rod (614) is used to limit the upward movement of the push column (613).

7. The quantitative discharging device for producing solvent-free epoxy anti-corrosion coatings according to claim 3, characterized in that: A drip-proof device (7) is provided at the side round frame (61). The drip-proof device (7) includes an L-shaped elastic telescopic rod (75). The top of the vertical rod of the L-shaped elastic telescopic rod (75) is fixed to the outer wall of the telescopic end of the electric push rod (610). A pull ring (71) is fixed to the side of the horizontal support rod of the L-shaped elastic telescopic rod (75). A sliding plate (73) is evenly and radially slidably installed on the bottom circumference of the side round frame (61). A baffle (74) is fixed to the bottom of the sliding plate (73). The baffle (74) is located below the liquid outlet of the electric ball valve (616). The sliding plate (73) and the outer wall of the pull ring (71) are hinged together by a hinge rod (72).

8. The quantitative discharging device for producing solvent-free epoxy anti-corrosion coatings according to claim 7, characterized in that: The bottom of the pull ring (71) is fixed with a ring frame (76) by a bracket. The ring frame (76) is composed of multiple rings. Both sides of each ring of the ring frame (76) are connected and fixed with an elastic telescopic column (77). The telescopic end of the elastic telescopic column (77) is fixed with an inclined plate (78) on the side near the center of each ring of the ring frame (76).

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