Anti-settling coating extrusion filling device

Abstract

The utility model relates to the technical field of paint processing equipment discloses a kind of anti-solidification paint extrusion filling device, the device includes extruder main body, discharge head and the plunger being located in discharge head, heat preservation mechanism and telescopic mechanism are set up.The heat preservation mechanism includes the first jacket around discharge head and the second jacket of being sleeved in plunger, for circulating heat medium to the sustained heat preservation of paint path is carried out.When sealing position, the sealing groove of plunger front end and the sealing ring in discharge head are closely attached, realize physical isolation.The utility model passes through when equipment shutdown, with the double synergies of "sustained heat preservation" and "active sealing isolation air", effectively solve the key technical problem that paint is solidified or blocked discharge port due to skinning because of contact air because of cooling, ensure that equipment can smoothly discharge when starting again, significantly improve the continuity of production and the reliability of device, and reduce material waste.

Description

Technical Field

[0001] This utility model relates to the field of coating processing equipment technology, and in particular to a coating extrusion and filling device that prevents solidification. Background Technology

[0002] Paint extrusion filling equipment is a widely used type of equipment in chemical, construction and other fields. It is used to extrude paint with a certain viscosity from storage containers and accurately fill it into designated packaging. In the conventional extrusion filling process, the discharge port of the equipment is the key component for achieving filling, and the rationality of its internal flow channel design directly affects the filling efficiency and quality.

[0003] However, as a chemical mixture, coatings are physically sensitive to temperature changes, and some components are prone to oxidation or solvent evaporation upon contact with air, leading to skin formation. During continuous production, the coating flows continuously at a relatively stable temperature, so these problems are not prominent. However, when production is intermittent or equipment needs to be shut down, the issues become apparent.

[0004] When the equipment stops operating, the coating residue inside the outlet gradually cools due to the shutdown, resulting in a significant increase in viscosity and decreased flowability. Simultaneously, the coating at the outlet tip comes into direct contact with outside air, inevitably leading to oxidation and skinning. These two effects combined easily form semi-solid or even completely solidified blockages inside the outlet. When the equipment is restarted, these blockages hinder the smooth flow of coating, affecting filling accuracy at best, and potentially causing equipment overload or complete failure to discharge, severely impacting production continuity. Currently, manual disassembly and cleaning of the outlet are usually required, which not only consumes significant manpower and time but also wastes coating and may damage equipment components during the cleaning process. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides an anti-coagulation coating extrusion and filling device, which aims to improve the problem that the discharge port of the coating extrusion and filling device lacks an active heat preservation and sealing structure when the equipment is stopped, causing the coating to easily solidify and become blocked due to cooling and contact with air. This utility model aims to provide an anti-coagulation coating extrusion and filling device with an improved structure that can effectively solve the above problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an anti-solidification coating extrusion and filling device, comprising: an extruder body, a discharge head connected to the output end of the extruder body, and a plunger reciprocatingly disposed within the discharge head; as well as a heat preservation mechanism and a telescopic mechanism.

[0007] The heat preservation mechanism includes a first jacket surrounding the discharge head and a second jacket sleeved around the plunger, wherein the first jacket and the second jacket are used to circulate the heat medium.

[0008] Furthermore, the telescopic mechanism is fixedly connected to the rear end of the plunger, and the telescopic mechanism is used to drive the plunger to move between a retracted position for filling and a forward sealing position for closing the discharge head.

[0009] Preferably, the plunger has a sealing groove on its front end outer periphery, and the inner wall of the discharge head has a sealing ring corresponding to the sealing groove; when the plunger is in the forward sealing position, the sealing groove and the sealing ring fit together to form a seal.

[0010] Preferably, the telescopic mechanism includes a housing, a cylinder fixed to the housing, and a sliding plate slidably disposed within the housing; the output end of the cylinder drives the sliding plate to move, and the sliding plate is fixedly connected to the rear end of the plunger.

[0011] Preferably, the telescopic mechanism further includes guide rods fixed at both ends inside the housing; the slide plate is provided with through holes that slide in cooperation with the guide rods.

[0012] Preferably, the insulation mechanism further includes a circulating pump, a medium inlet pipe, a heat exchanger, an inlet tee, a first inlet branch pipe, and a second inlet branch pipe; the outlet of the circulating pump is connected to the inlet tee in sequence through the medium inlet pipe and the heat exchanger; the inlet tee is connected to the inlets of the first jacket and the second jacket respectively through the first inlet branch pipe and the second inlet branch pipe.

[0013] Preferably, the insulation mechanism further includes a first outlet branch pipe, a second outlet branch pipe, an outlet tee, and a medium return pipe; the outlets of the first jacket and the second jacket are respectively connected to the outlet tee through the first outlet branch pipe and the second outlet branch pipe, and the outlet tee is connected to the inlet of the circulation pump through the medium return pipe to form a circulation loop.

[0014] Preferably, the heat exchanger is used to regulate the temperature of the heat medium before it enters the inlet tee.

[0015] Preferably, the anti-coagulation coating extrusion filling device further includes a bracket and a support plate fixed on the bracket; the discharge head is fixed to the support plate.

[0016] This utility model has the following beneficial effects: 1. In this utility model, by setting up a heat preservation mechanism that can continuously heat the discharge head and plunger, and cooperating with a telescopic mechanism that can drive the plunger forward to physically seal the discharge port when the machine stops, the synergistic effect solves the problem in the prior art where the coating solidifies and forms a skin due to cooling and contact with air when the equipment is stopped or in a low-temperature environment, causing blockage of the discharge port. It achieves a dual anti-solidification effect of heat preservation and air isolation, ensuring the smooth flow of the discharge port.

[0017] 2. In this utility model, the cylinder of the telescopic mechanism automatically pushes the plunger to complete the sealing and opening actions, which solves the problem that traditional devices require manual cleaning of solidified material after shutdown. This achieves the technical effects of simplifying operation, saving manpower and time costs, reducing material waste, and significantly improving the continuity and efficiency of production. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of an anti-coagulation coating extrusion and filling device proposed in this utility model. Figure 2 This is a schematic diagram of the support plate portion of an anti-coagulation coating extrusion and filling device proposed in this utility model. Figure 3 This is a schematic diagram of the discharge head section of an anti-coagulation coating extrusion and filling device proposed in this utility model. Figure 4 This is a schematic diagram of the slide plate part of an anti-coagulation paint extrusion and filling device proposed in this utility model. Figure 5 This is a schematic diagram of the circulating pump section of an anti-coagulation coating extrusion and filling device proposed in this utility model.

[0019] Legend: 1. Extruder body; 2. Support frame; 3. Discharge head; 4. Support plate; 5. Telescopic mechanism; 501. Cylinder; 502. Outer shell; 503. Slide plate; 504. Guide rod; 505. Plunger; 506. Sealing groove; 507. Sealing ring; 6. Insulation mechanism; 601. Circulating pump; 602. Medium inlet pipe; 603. Heat exchanger; 604. Inlet tee; 605. First inlet branch pipe; 606. Second inlet branch pipe; 607. First outlet branch pipe; 608. Second outlet branch pipe; 609. Outlet tee; 610. Medium return pipe; 611. First jacket; 612. Second jacket. Detailed Implementation

[0020] Please refer to the appendix. Figures 1 to 5 This utility model provides a coating extrusion and filling device to prevent solidification, aiming to solve the problem in the prior art where the discharge port lacks an active insulation and sealing structure, which causes the coating to easily solidify and block when the machine is stopped.

[0021] The anti-coagulation coating extrusion and filling device includes an extruder body 1 and a discharge head 3 connected to the output end of the extruder body 1. The extruder body 1 is used to convey coating to the discharge head 3, and the discharge head 3 is used to fill and discharge the coating. To ensure the stability of the overall structure, the device is also equipped with a bracket 2 and a support plate 4 fixed on the bracket 2. The discharge head 3 is fixed on the support plate 4. A plunger 505 is reciprocating inside the discharge head 3. The device also includes a telescopic mechanism 5 for driving the plunger 505 to move and a heat preservation mechanism 6 for heating. Specifically, the telescopic mechanism 5 is fixedly connected to the rear end of the plunger 505 to drive the plunger 505 to move between a retracted position for normal filling and a forward sealing position for closing the discharge head 3; when the plunger 505 is in the retracted position, the outlet of the discharge head 3 is opened for filling, and when the plunger 505 is in the forward sealing position, the outlet of the discharge head 3 is closed to prevent the coating from contacting the outside air. The heat preservation mechanism 6 is used to continuously heat the critical path through which the coating flows. The heat preservation mechanism 6 includes a first jacket 611 surrounding the discharge head 3 and a second jacket 612 sleeved around the plunger 505. The hollow internal structure of the first jacket 611 and the second jacket 612 is used for the flow of heat medium. Through heat exchange, the first jacket 611 keeps the stationary discharge head 3 warm, while the second jacket 612 keeps the moving plunger 505 warm. This works together to ensure that the coating inside the discharge head 3 and around the plunger 505 is always kept at a temperature with good fluidity, effectively preventing viscosity increase or solidification caused by cooling.

[0022] The telescopic mechanism 5 includes a housing 502, a cylinder 501 fixed to the housing 502, and a sliding plate 503 slidably disposed within the housing 502. The cylinder 501 serves as a power source, and its output end is connected to the sliding plate 503 to drive the sliding plate 503 to reciprocate within the housing 502. The other side of the sliding plate 503 is fixedly connected to the rear end of the plunger 505, thereby transmitting the linear motion generated by the cylinder 501 to the plunger 505 and realizing the drive control of the plunger 505. To ensure the stability and accuracy of the skateboard 503 during movement, the telescopic mechanism 5 also includes guide rods 504 fixed at both ends inside the housing 502; the skateboard 503 is provided with through holes that slide with the guide rods 504, and the guide rods 504 pass through the through holes of the skateboard 503 to provide precise guidance and limit for the reciprocating motion of the skateboard 503, preventing deflection or swaying during movement; To achieve effective sealing during shutdown, a sealing groove 506 is provided on the outer periphery of the front end of the plunger 505, and a sealing ring 507 is fixedly provided on the inner wall of the discharge head 3 at the position corresponding to the sealing groove 506. In the assembled state, when the cylinder 501 extends and pushes the plunger 505 to the forward sealing position, the sealing groove 506 at the front end of the plunger 505 will fit tightly with the sealing ring 507 inside the discharge head 3. This matching structure of the sealing groove 506 and the sealing ring 507 can completely isolate the coating residue inside the discharge head 3 from the outside air, thereby effectively preventing the coating from oxidizing and forming a skin due to contact with air.

[0023] In a preferred embodiment, in order to achieve stable circulation and temperature control of the heat medium within the insulation mechanism 6, the insulation mechanism 6 further includes a circulation pump 601; referring to the attached drawings, the outlet of the circulation pump 601 is connected to the heat exchanger 603 through a medium inlet pipe 602, and the outlet of the heat exchanger 603 is connected to the inlet tee 604; the heat exchanger 603 is used to regulate the temperature of the heat medium before it enters the inlet tee 604, so as to ensure that the temperature of the supplied heat medium is constant; As a further preferred embodiment, in order to uniformly distribute the heat medium to the first jacket 611 and the second jacket 612, the inlet tee 604 is provided with two outlets, which are respectively connected to the inlets of the first jacket 611 and the second jacket 612 through the first inlet branch pipe 605 and the second inlet branch pipe 606. As a further preferred embodiment, in order to construct a complete heat medium circulation loop, the outlet of the first jacket 611 is connected to one end of the outlet tee 609 through the first outlet branch pipe 607, and the outlet of the second jacket 612 is connected to the other end of the outlet tee 609 through the second outlet branch pipe 608; the outlet of the outlet tee 609 is connected to the inlet of the circulation pump 601 through the medium return pipe 610, thereby forming a closed, continuous forced circulation insulation system.

[0024] Working principle: When paint extrusion and filling are required, the extruder body 1 starts and conveys the paint to the discharge head 3. At the same time, the heat preservation mechanism 6 starts working, and the circulating pump 601 pumps the hot medium into the medium inlet pipe 602. After the hot medium flows through the heat exchanger 603 and is adjusted to the set temperature, it enters the inlet tee 604 and enters the first jacket 611 and the second jacket 612 through the first inlet branch pipe 605 and the second inlet branch pipe 606 respectively. At this time, the cylinder 501 of the telescopic mechanism 5 is in the retracted state, which drives the slide plate 503 to move backward under the guidance of the guide rod 504, so that the front end of the plunger 505 fixed to the slide plate 503 moves away from the sealing ring 507, and the discharge port opens. When the paint flows through the area of ​​the discharge head 3 and the plunger 505, which is continuously heated by the first jacket 611 and the second jacket 612, the temperature is maintained, ensuring the fluidity of the paint, so as to smoothly carry out filling. When the equipment stops working, the extruder body 1 stops feeding, the cylinder 501 extends, pushing the slide plate 503 forward along the guide rod 504, which in turn drives the plunger 505 to move forward precisely until the sealing groove 506 at the front end of the plunger 505 is tightly fitted with the sealing ring 507 in the discharge head 3, completely sealing the discharge port and isolating the internal residual coating from contact with the outside air; during the entire shutdown period, the heat preservation mechanism 6 continues to operate, and the heat medium continues to circulate in the first jacket 611 and the second jacket 612 to keep the inside of the discharge head 3 and the plunger 505 warm, preventing the residual coating from suddenly increasing in viscosity or even solidifying and forming a skin due to cooling; when the machine is restarted next time, the cylinder 501 retracts, the plunger 505 moves back, and the coating in the heat preservation state can flow out directly and smoothly. Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A coating extrusion and filling device for preventing solidification, comprising an extruder body (1); The discharge head (3) is connected to the output end of the extruder body (1); and a plunger (505) reciprocatingly disposed within the discharge head (3), characterized in that, The device also includes a heat preservation mechanism (6) and a telescopic mechanism (5); The heat preservation mechanism (6) includes a first jacket (611) surrounding the outer periphery of the discharge head (3) and a second jacket (612) sleeved on the outer periphery of the plunger (505), wherein the first jacket (611) and the second jacket (612) are used to circulate the heat medium; The telescopic mechanism (5) is fixedly connected to the rear end of the plunger (505). The telescopic mechanism (5) is used to drive the plunger (505) to move between a retracted position for filling and a forward sealing position for closing the discharge head (3).

2. The anti-coagulation coating extrusion and filling device according to claim 1, characterized in that, The plunger (505) has a sealing groove (506) on its front end outer periphery, and the inner wall of the discharge head (3) has a sealing ring (507) corresponding to the sealing groove (506); when the plunger (505) is in the forward sealing position, the sealing groove (506) and the sealing ring (507) fit together to form a seal.

3. The anti-coagulation coating extrusion and filling device according to claim 1, characterized in that, The telescopic mechanism (5) includes a housing (502), a cylinder (501) fixed to the housing (502), and a sliding plate (503) slidably disposed in the housing (502); the output end of the cylinder (501) drives the sliding plate (503) to move, and the sliding plate (503) is fixedly connected to the rear end of the plunger (505).

4. The anti-coagulation coating extrusion and filling device according to claim 3, characterized in that, The telescopic mechanism (5) further includes guide rods (504) with both ends fixed inside the outer shell (502); the slide plate (503) is provided with through holes that slide with the guide rods (504).

5. The anti-coagulation coating extrusion and filling device according to claim 1, characterized in that, The insulation mechanism (6) also includes a circulation pump (601), the outlet of which is connected in sequence to an inlet tee (604) via a medium inlet pipe (602) and a heat exchanger (603); the inlet tee (604) is connected to the inlets of the first jacket (611) and the second jacket (612) via a first inlet branch pipe (605) and a second inlet branch pipe (606) respectively.

6. The anti-coagulation coating extrusion and filling device according to claim 5, characterized in that, The outlets of the first jacket (611) and the second jacket (612) are respectively connected to the outlet tee (609) through the first outlet branch pipe (607) and the second outlet branch pipe (608). The outlet tee (609) is connected to the inlet of the circulating pump (601) through the medium return pipe (610) to form a circulation loop.

7. The anti-coagulation coating extrusion and filling device according to claim 5, characterized in that, The heat exchanger (603) is used to regulate the temperature of the heat medium before it enters the inlet tee (604).

8. The anti-coagulation coating extrusion and filling device according to claim 1, characterized in that, The device further includes a bracket (2) and a support plate (4) fixed on the bracket (2); the discharge head (3) is fixed on the support plate (4).

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