Feeding machine for liquid silica gel

Abstract

The utility model relates to the technical field of liquid silica gel, and discloses a feeder for liquid silica gel, which comprises a feeding component, a charging basket, a magnetic component, a metering pump and a pressure sensor. The feeding assembly provides power and a channel for transmission of the liquid silica gel; the material barrel is used for storing liquid silica gel, and a discharging opening of the material barrel is connected with a feeding opening of the feeding assembly, so that the liquid silica gel can smoothly flow into the feeding assembly from the material barrel; the magnetic attraction assembly is connected between the discharging opening of the feeding assembly and the feeding opening of the material barrel; the metering pump is connected between the feeding assembly and the charging basket, and precise control over the feeding amount of the liquid silica gel is achieved by adjusting working parameters of the metering pump; the requirements of different production processes are met; and the at least two pressure sensors are arranged at the bottom of the material barrel in a surrounding mode, and the pressure sensors are electrically connected with the metering pump.

Description

Technical Field

[0001] This utility model relates to the field of liquid silicone technology, specifically to a feeder for liquid silicone. Background Technology

[0002] In the automated feeding process of liquid silicone, ensuring the continuity, stability and uniformity of material supply is of paramount importance.

[0003] Existing feeding equipment still has several problems: Traditional feeding machines generally rely on screw tightening for hopper replacement and installation. This method is not only time-consuming and complex, but also prone to screw stripping and wear, leading to decreased connection reliability and affecting equipment efficiency and stability. Furthermore, existing technologies mostly use single-point pressure sensors to monitor the internal pressure of the hopper, which can only detect pressure changes at specific locations and cannot comprehensively reflect the actual pressure distribution. Because the physical properties of liquid silica gel (such as viscosity) change with temperature or time, pressure monitoring at a single location may cause the metering pump to receive inaccurate pressure signals, affecting the precise control of the feeding process and causing unstable or uneven feeding pressure.

[0004] Therefore, there is an urgent need for a liquid silicone feeder to solve the above problems. Utility Model Content

[0005] Based on the above, the purpose of this utility model is to provide a feeder for liquid silicone to solve the problems of complicated replacement and installation of the material tank and the inability to detect pressure changes at specific locations within the material tank.

[0006] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: a feeder for liquid silicone, comprising:

[0007] The feeding assembly provides power and a channel for the transfer of liquid silicone.

[0008] A material tank for storing liquid silicone, the outlet of which is connected to the feed port of the feeding assembly;

[0009] A magnetic suction component is connected between the discharge port of the feeding component and the feeding port of the material barrel;

[0010] A metering pump is connected between the feeding assembly and the material tank. By adjusting the pump's operating parameters, precise control of the liquid silicone feed rate can be achieved.

[0011] At least two pressure sensors are provided and arranged around the bottom of the material tank. The pressure sensors are electrically connected to the metering pump.

[0012] As a preferred embodiment of a feeder for liquid silicone, the magnetic suction assembly includes a first magnetic suction seat, a second magnetic suction seat, and flow channels. The first magnetic suction seat is positioned at the feeding port of the feeding assembly, the second magnetic suction seat is positioned at the discharge port of the material barrel, and the flow channels are all opened in the first magnetic suction seat and the second magnetic suction seat, and the flow channels are all connected to the discharge port of the feeding assembly.

[0013] As a preferred embodiment of a feeder for liquid silicone, it further includes an auxiliary moving component disposed at the bottom of the feed hopper, the auxiliary moving component being for flexible adjustment of the position of the feed hopper.

[0014] As a preferred embodiment of a feeder for liquid silicone, the auxiliary moving component includes a base and casters. The base is positioned at the bottom of the material container to support the material container, and the casters are positioned at the bottom of the base to move and position the material container.

[0015] As a preferred embodiment of a feeder for liquid silicone, the bottom surface of the base is provided with a groove, and the pressure sensor is circumferentially arranged on the top inner wall of the groove.

[0016] As a preferred embodiment of a feeder for liquid silicone, a vacuum pressure pump is positioned and connected to the top of the feed hopper, and the connection end of the vacuum pressure pump is connected to the exhaust end of the feed hopper.

[0017] As a preferred embodiment of a liquid silicone feeder, a heating component is also included, disposed at the outlet end of the metering pump. The heating component is used to heat the liquid silicone to prevent the liquid silicone from clogging the outlet end of the metering pump.

[0018] As a preferred embodiment of a feeder for liquid silicone, the heating assembly includes an inner ring cylinder, an outer cylinder, a gap, a heating wire, and an electrical connecting wire. The inner ring cylinder is connected to the outlet end of the metering pump. The outer cylinder is fitted onto the surface of the inner ring cylinder. The gap exists between the inner ring cylinder and the outer cylinder. The heating wire is arranged in the gap and is evenly spirally wound around the outer surface of the inner ring cylinder. The electrical connecting wire extends from the heating wire to the outer surface of the outer cylinder.

[0019] As a preferred embodiment of a feeder for liquid silicone, the feeding assembly includes a material cylinder and a piston rod, the piston rod being movable at the air inlet end of the material cylinder, and the material outlet end of the material cylinder being connected to the outlet of the material barrel.

[0020] As a preferred embodiment of a feeder for liquid silicone, the first magnetic base includes a first positioning block and a first magnetic block, and the second magnetic base includes a second positioning block and a second magnetic block. The top surface of the first positioning block is positioned at the feeding port of the feeding assembly, the first magnetic block is recessed in the bottom surface of the first positioning block, the top surface of the second positioning block is positioned at the discharge port of the material barrel, the first magnetic block protrudes from the bottom surface of the first positioning block, the flow channels are evenly distributed on the first positioning block and the second positioning block, and the flow channels connect the discharge port of the material barrel and the feeding port of the feeding assembly.

[0021] The beneficial effects of this invention are as follows: A magnetic suction component enables a quick and stable connection between the material tank and the feeding component. Magnetic force ensures convenient replacement and installation of the material tank while maintaining a tight seal at the connection point, effectively preventing liquid silicone leakage. At least two pressure sensors, circumferentially arranged at the bottom of the material tank, are used to monitor pressure changes in the tank in real time. This circumferential distribution of pressure sensors ensures comprehensive monitoring of the tank pressure from all directions, avoiding blind spots and providing a more accurate pressure signal to the metering pump. This allows the pump to more precisely adjust its operating state, further ensuring the stability and uniformity of the liquid silicone feeding pressure. Attached Figure Description

[0022] Figure 1 A schematic diagram of the overall structure of a liquid silicone feeder in the first direction provided by this utility model;

[0023] Figure 2 A schematic diagram of the overall structure of a liquid silicone feeder in the second direction provided by this utility model;

[0024] Figure 3 A front view of a liquid silicone feeder provided by this utility model;

[0025] Figure 4 A schematic diagram of the overall structure of the heating component in a liquid silicone feeder provided by this utility model;

[0026] Figure 5 A schematic diagram of the overall structure of the magnetic suction component in a liquid silicone feeder provided by this utility model.

[0027] The reference numerals in the figures are as follows: 1. Feeding assembly; 11. Material cylinder; 12. Piston rod; 2. Material bucket; 3. Magnetic suction assembly; 31. First magnetic suction base; 41. First positioning block; 42. First magnetic suction block; 32. Second magnetic suction base; 51. Second positioning block; 52. Second magnetic suction block; 33. Flow channel; 6. Metering pump; 7. Pressure sensor; 8. Vacuum pressure pump; 9. Heating assembly; 91. Inner ring cylinder; 92. Outer cylinder; 93. Gap; 94. Heating wire; 95. Electrical connection wire; 10. Auxiliary moving assembly; 101. Base; 102. Casters; 103. Groove. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0029] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no specific meaning.

[0033] In one embodiment of this utility model, such as Figure 1-5 As shown, a liquid silicone feeder is provided, comprising: a feeding assembly 1, a material tank 2, a magnetic suction assembly 3, a metering pump 6, and a pressure sensor 7. The feeding assembly 1 provides power and a channel for the transfer of liquid silicone; the material tank 2 is used to store liquid silicone, and its outlet is connected to the feeding port of the feeding assembly 1 to ensure that the liquid silicone flows smoothly from the material tank 2 into the feeding assembly 1; the magnetic suction assembly 3 is connected between the outlet of the feeding assembly 1 and the feeding port of the material tank 2; the metering pump 6 is connected between the feeding assembly 1 and the material tank 2, and by adjusting the pump's operating parameters, precise control of the liquid silicone feed amount is achieved to meet the needs of different production processes; at least two pressure sensors 7 are arranged around the bottom of the material tank 2, and the pressure sensors 7 are electrically connected to the metering pump 6.

[0034] This utility model provides a liquid silicone feeder that achieves a quick and stable connection between the material tank 2 and the feeding component 1 through a magnetic suction component 3. The magnetic force ensures convenient replacement and installation of the material tank 2 while guaranteeing the sealing of the connection points, effectively preventing liquid silicone leakage. At least two pressure sensors 7 are circumferentially arranged at the bottom of the material tank 2 to monitor pressure changes in real time. The circumferentially distributed pressure sensors 7 ensure comprehensive monitoring of the pressure in the material tank 2 from all directions, avoiding blind spots and providing a more accurate pressure signal to the metering pump 6. This allows the pump to more precisely adjust its operating state, further ensuring the stability and uniformity of the liquid silicone feeding pressure.

[0035] Preferably, the pressure sensor 7 is electrically connected to the metering pump 6, enabling it to convert the detected pressure signal into an electrical signal and transmit it to the metering pump 6. Based on the received pressure signal, the metering pump 6 can automatically adjust its operating state, thereby achieving precise regulation of the liquid silicone feeding pressure and ensuring the stability and uniformity of the feeding process.

[0036] The magnetic suction assembly 3 includes a first magnetic suction base 31, a second magnetic suction base 32, and a flow channel 33. The first magnetic suction base 31 is positioned at the feeding port of the feeding assembly 1, and the second magnetic suction base 32 is positioned at the discharge port of the material container 2. Utilizing the magnetic attraction, the feeding assembly 1 and the material container 2 can be quickly connected without complex mechanical connection operations. When the material container 2 needs to be replaced, it can also be easily separated, greatly improving operational efficiency, reducing equipment downtime, and increasing production efficiency. The flow channel 33 is formed in both the first magnetic suction base 31 and the second magnetic suction base 32, and the flow channel 33 is connected to the discharge port of the feeding assembly 1. Under the action of magnetic force, the first magnetic suction base 31 and the second magnetic suction base 32 fit tightly together, and with the help of sealing rings or gaskets, effectively prevents liquid silicone leakage. This sealing structure not only ensures a clean production environment but also avoids silicone waste and reduces production costs.

[0037] Specifically, the first magnetic suction base 31 includes a first positioning block 41 and a first magnetic suction block 42, and the second magnetic suction base 32 includes a second positioning block 51 and a second magnetic suction block 52. The top surface of the first positioning block 41 is positioned at the feeding port of the feeding component 1, the first magnetic suction block 42 is recessed in the bottom surface of the first positioning block 41, the top surface of the second positioning block 51 is positioned at the discharge port of the material barrel 2, the first magnetic suction block 42 protrudes from the bottom surface of the first positioning block 41, and the flow channels 33 are evenly distributed on the first positioning block 41 and the second positioning block 51. The flow channels 33 are connected to the discharge port of the material barrel 2 and the feeding port of the feeding component 1.

[0038] In this embodiment, during connection, the operator only needs to bring the two close together, and the first magnetic block 42 and the second magnetic block 52 will quickly attract each other under the action of magnetic force, achieving rapid connection without complicated calibration and installation procedures, which greatly improves operating efficiency, reduces labor intensity, and meets the production line's need for rapid replacement of material bucket 2.

[0039] When the first magnetic base 31 and the second magnetic base 32 are connected by adsorption, the two positioning blocks fit tightly together. With the help of sealing strips or sealing gaskets, they can effectively prevent liquid silicone from leaking from the connection point, ensuring a clean production environment, reducing silicone waste, and improving the safety and economy of production.

[0040] In this design, the first magnetic block 42 is recessed into the bottom surface of the first positioning block 41, while the second magnetic block 52 protrudes from the bottom surface of the second positioning block 51. This complementary structure not only enhances the connection stability between the magnetic bases but also prevents the connection from loosening due to vibration, collision, or other factors during the feeding process. The stable connection ensures that the flow channel 33 remains unobstructed, allowing the liquid silicone to be continuously and stably transported from the material tank 2 to the feeding assembly 1, thus guaranteeing production continuity and product quality stability.

[0041] Preferably, a vacuum pressure pump 8 is positioned and connected to the top of the material tank 2. The connection end of the vacuum pressure pump 8 is connected to the exhaust end of the material tank 2. The vacuum pressure pump 8 quickly extracts air from the material tank 2, creating a vacuum environment and effectively reducing the possibility of air mixing into the liquid silicone. This avoids problems such as product surface defects and performance instability caused by air bubbles, meeting the requirements of production processes with high product quality. Moreover, maintaining the vacuum state inside the material tank 2 can reduce the flow instability of liquid silicone caused by air pressure fluctuations. This ensures that the silicone maintains a uniform and continuous flow rate during the feeding process, guarantees the stability of the feeding system, reduces the risk of production interruption due to uneven feeding, and improves production efficiency and equipment reliability.

[0042] During installation, a dedicated sealing flange and matching fastening bolts are used to achieve a positioning connection with the vacuum pressure pump 8. The connection end of the vacuum pressure pump 8 is tightly connected to the exhaust end of the material tank 2, and a high-performance sealing gasket is provided between the two to ensure good airtightness at the connection point.

[0043] This liquid silicone feeder also includes a heating component 9, located at the outlet of the metering pump 6. Liquid silicone may thicken or even solidify at low temperatures, causing blockage at the outlet of the metering pump 6 and affecting feeding. The heating component 9 continuously heats the liquid silicone at the outlet, maintaining its appropriate fluidity, effectively preventing solidification and blockage, ensuring a stable and continuous feeding process, avoiding production stoppages due to feeding interruptions, and improving production efficiency. Furthermore, stable silicone fluidity means more uniform silicone quantity and flow rate per extrusion. Uniform silicone supply ensures consistent encapsulation quality, reduces product defects caused by unstable silicone quantity, and improves product yield and overall quality.

[0044] Specifically, the heating assembly 9 includes an inner ring cylinder 91, an outer cylinder 92, a gap 93, a heating wire 94, and an electrical connection wire 95. The inner ring cylinder 91 is connected to the outlet end of the metering pump 6. The outer cylinder 92 is sleeved on the surface of the inner ring cylinder 91. The gap 93 exists between the inner ring cylinder 91 and the outer cylinder 92. The heating wire 94 is arranged in the gap 93 and is evenly spirally wound on the outer surface of the inner ring cylinder 91. The electrical connection wire 95 is led out from the heating wire 94 to the outer surface of the outer cylinder 92.

[0045] The inner ring 91 is preferably made of a metal with high thermal conductivity, such as copper. Copper has excellent thermal conductivity, which can quickly transfer the heat generated by the heating wire 94 to the liquid silicone, improving heating efficiency. At the same time, its chemical properties are relatively stable, and it is not prone to chemical reaction during long-term contact with the liquid silicone, ensuring that the purity and performance of the silicone are not affected. The outer ring 92 is made of a high-temperature resistant and highly insulating ceramic material. The high-temperature resistance of the ceramic material can withstand the high temperatures generated by the heating wire 94 during operation, preventing the outer ring 92 from being damaged or deformed due to overheating. Moreover, the excellent insulation properties of the ceramic material outer ring 92 can effectively avoid the risk of electric shock to users, ensuring the safety of equipment operation.

[0046] In this embodiment, the heating wire 94 is uniformly spirally wound around the outer surface of the inner ring cylinder 91. This arrangement allows heat to be evenly distributed along the circumference of the inner ring cylinder 91. When current passes through the heating wire 94 and generates heat, all parts of the inner ring cylinder 91 can simultaneously receive the heat and quickly transfer it to the liquid silicone flowing through the inner ring cylinder 91, avoiding local overheating or overcooling and ensuring that the silicone is heated evenly throughout the flow process.

[0047] Preferably, the feeding assembly 1 includes a material cylinder 11 and a piston rod 12. The piston rod 12 is movable at the air inlet end of the material cylinder 11, and the material outlet end of the material cylinder 11 is connected to the material outlet of the material bucket 2.

[0048] In this embodiment, the flow path of the liquid silicone is as follows: The liquid silicone is first stored in the material tank 2. The top of the material tank 2 is connected to the vacuum pressure pump 8, which creates a vacuum environment, reduces the probability of air mixing into the liquid silicone, and ensures the quality of the silicone. The outlet of the material tank 2 is connected to the outlet end of the material cylinder 11 of the feeding assembly 1. When the feeding assembly 1 is working, the piston rod 12 reciprocates under the air pressure at the air inlet end of the material cylinder 11, pushing the liquid silicone from the material tank 2 through the connection point into the material cylinder 11, and then outputting it from the outlet end of the material cylinder 11. The liquid silicone output from the feeding assembly 1 enters the metering pump 6, which accurately measures the liquid silicone according to preset parameters to ensure accurate feeding. The outlet end of the metering pump 6 is connected to the heating component 9. The liquid silicone flows through the inner ring cylinder 91 of the heating component 9. The heating wire 94 is evenly spirally wound on the outer surface of the inner ring cylinder 91. The liquid silicone in the inner ring cylinder 91 is heated through the gap 93 to maintain its appropriate fluidity, prevent blockage at the outlet end of the metering pump 6, and ensure smooth material supply.

[0049] The liquid silicone feeder also includes an auxiliary moving component 10, which is located at the bottom of the material tank 2, and the auxiliary moving component 10 allows for flexible adjustment of the position of the material tank 2.

[0050] Specifically, the auxiliary moving component 10 includes a base 101 and casters 102. The base 101 is positioned at the bottom of the material bucket 2 and is used to support the material bucket 2. The casters 102 are positioned at the bottom of the base 101 and are used to move and position the material bucket 2.

[0051] Specifically, a groove 103 is provided on the bottom surface of the base 101, and the pressure sensor 7 is arranged circumferentially on the top inner wall of the groove 103, so that the sensor can sense the pressure change transmitted from the material bucket 2 to the base 101 more closely and accurately.

[0052] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. A feeder for liquid silicone, characterized in that, include: The feeding assembly provides power and a channel for the transfer of liquid silicone. A material tank for storing liquid silicone, the outlet of which is connected to the feed port of the feeding assembly; A magnetic suction component is connected between the discharge port of the feeding component and the feeding port of the material barrel; A metering pump is connected between the feeding assembly and the material tank. By adjusting the pump's operating parameters, precise control of the liquid silicone feed rate can be achieved. At least two pressure sensors are provided and arranged around the bottom of the material tank. The pressure sensors are electrically connected to the metering pump.

2. The liquid silicone feeder according to claim 1, characterized in that, The magnetic suction assembly includes a first magnetic suction base, a second magnetic suction base, and flow channels. The first magnetic suction base is positioned at the feeding port of the feeding assembly, and the second magnetic suction base is positioned at the discharge port of the material barrel. The flow channels are all opened in the first magnetic suction base and the second magnetic suction base, and the flow channels are all connected to the discharge port of the feeding assembly.

3. A feeder for liquid silicone according to claim 1 or 2, characterized in that, It also includes an auxiliary moving component, which is disposed at the bottom of the material bucket, and the auxiliary moving component is used to flexibly adjust the position of the material bucket.

4. A feeder for liquid silicone according to claim 3, characterized in that, The auxiliary moving component includes a base and casters. The base is positioned at the bottom of the material bucket and is used to support the material bucket. The casters are positioned at the bottom of the base and are used to move and position the material bucket.

5. A feeder for liquid silicone according to claim 4, characterized in that, The base has a groove on its bottom surface, and the pressure sensor is arranged circumferentially on the top inner wall of the groove.

6. A feeder for liquid silicone according to claim 1, 2, 4, or 5, characterized in that, A vacuum pressure pump is positioned and connected to the top of the material hopper, and the connection end of the vacuum pressure pump is connected to the exhaust end of the material hopper.

7. A feeder for liquid silicone according to any one of claims 1, 2, 4, or 5, characterized in that, It also includes a heating component disposed at the outlet end of the metering pump. The heating component is used to heat the liquid silicone to prevent the liquid silicone from clogging the outlet end of the metering pump.

8. A feeder for liquid silicone according to claim 7, characterized in that, The heating assembly includes an inner ring cylinder, an outer cylinder, a gap, a heating wire, and an electrical connecting wire. The inner ring cylinder is connected to the outlet end of the metering pump. The outer cylinder is fitted onto the surface of the inner ring cylinder. The gap exists between the inner ring cylinder and the outer cylinder. The heating wire is arranged in the gap and is evenly spirally wound around the outer surface of the inner ring cylinder. The electrical connecting wire extends from the heating wire to the outer surface of the outer cylinder.

9. A feeder for liquid silicone according to claim 1, 2, 4, 5, or 8, characterized in that, The feeding assembly includes a material cylinder and a piston rod. The piston rod is movable at the air inlet end of the material cylinder, and the material outlet end of the material cylinder is connected to the material outlet of the material bucket.

10. A feeder for liquid silicone according to claim 2, characterized in that, The first magnetic suction base includes a first positioning block and a first magnetic suction block, and the second magnetic suction base includes a second positioning block and a second magnetic suction block. The top surface of the first positioning block is positioned at the feeding port of the feeding component, the first magnetic suction block is recessed in the bottom surface of the first positioning block, the top surface of the second positioning block is positioned at the discharge port of the material barrel, and the first magnetic suction block protrudes from the bottom surface of the first positioning block. The flow channels are evenly distributed on the first positioning block and the second positioning block, and the flow channels connect the discharge port of the material barrel and the feeding port of the feeding component.

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