Bidirectional discharging device for liquid silica gel feeding system

Abstract

The utility model discloses a bidirectional discharging device for a liquid silica gel feeding system, which is characterized in that a pneumatic motor is arranged on a pneumatic motor fixing bracket; the double-electric-control electromagnetic valve is installed on the pneumatic motor and communicated with the pneumatic motor, and the double-electric-control electromagnetic valve controls the pneumatic motor to move in a reciprocating mode. The piston cylinder body assembly and the charging barrel are both fixedly installed on the pump body fixing support, the piston cylinder body assembly is installed on an output shaft of the pneumatic motor, the spring sealing assembly is installed on a discharging port of the charging barrel, the pneumatic motor drives the piston cylinder body assembly to do reciprocating motion so as to compress or loosen the spring sealing assembly, and the discharging port of the charging barrel is opened or closed. By using the efficient spring sealing assembly, the overall leakage control capacity of the device is improved. By using the bidirectional discharging design device, the working efficiency is higher, the flow is larger, the discharging is more continuous, the discharging speed is high, and the control precision is higher. By using the liquid level sensor, the system control is simpler, more convenient and more intelligent.

Description

Technical Field

[0001] The utility model relates to related technical fields such as a silica gel feeding system, and in particular to a two-way discharging device for a liquid silica gel feeding system. Background Art

[0002] Currently, there are two commonly used supply devices. One is the traditional colorant tank plus air pressure for feeding. Considering that the low feeding pressure not only shortens the conveying distance, but also the colorant sometimes has a high viscosity, the conveying flow rate is also relatively low, which cannot meet the needs of large flow conditions of silicone devices; the second is a one-way discharge supply device, which only discharges colorant in one direction during the reciprocating stroke, resulting in low working efficiency and small flow rate. Utility Model Content

[0003] In view of this, in order to solve the above problems, the purpose of the present invention is to provide a two-way discharging device for a liquid silicone feeding system, which includes:

[0004] Double electric control solenoid valve, pneumatic motor, pneumatic motor fixing bracket, piston cylinder assembly, spring seal assembly, barrel, pump body fixing bracket;

[0005] The pneumatic motor is mounted on the pneumatic motor fixing bracket;

[0006] The dual-electrically controlled solenoid valve is installed on the pneumatic motor, the dual-electrically controlled solenoid valve is communicated with the pneumatic motor, and the dual-electrically controlled solenoid valve controls the reciprocating motion of the pneumatic motor;

[0007] The piston-cylinder assembly and the barrel are both fixedly mounted on the pump body fixing bracket, and the output shaft of the pneumatic motor is mounted on the piston-cylinder assembly, and the spring sealing assembly is mounted on the discharge port of the barrel. The pneumatic motor drives the piston-cylinder assembly to reciprocate so as to compress or relax the spring sealing assembly, and the discharge port of the barrel is opened or closed;

[0008] Among them, the piston-cylinder assembly includes: a valve stem, a piston, a cylinder body, and a piston cover; the cylinder body is fixedly installed on the pump body fixing bracket, the output shaft of the pneumatic motor is installed on one end of the valve stem, the other end of the valve stem extends into the cylinder body and passes through the piston to install the piston cover, and the outside of the piston is in contact with the inner wall of the cylinder body.

[0009] The above-mentioned bidirectional discharging device for a liquid silicone feeding system, wherein the spring sealing assembly includes: a sealing seat, a spring, and a steel ball; the two ends of the sealing seat are through-set, one end of the sealing seat is mounted on the pump body fixing bracket, and one end of the sealing seat is communicated with the barrel, and the other end of the sealing seat extends into the cylinder body and is communicated with the cylinder body, the spring and the steel ball are both arranged inside the sealing seat, and one end of the spring abuts against the inside of the sealing seat, and the other end of the spring abuts against the steel ball, and the steel ball can block the discharge port of the barrel.

[0010] In the above-mentioned two-way discharging device for a liquid silicone feeding system, a guide ring is provided on the outside of the piston.

[0011] In the above-mentioned bidirectional discharging device for a liquid silicone feeding system, a bidirectional sealing ring is provided on the outer wall of the piston.

[0012] The above-mentioned bidirectional discharging device for the liquid silicone feeding system further includes: a liquid level sensor; the liquid level sensor is installed on the barrel.

[0013] In the above-mentioned bidirectional discharging device for a liquid silicone feeding system, the output shaft of the pneumatic motor is connected to the valve stem through a coupling.

[0014] In the above-mentioned bidirectional discharging device for the liquid silicone feeding system, a pressure regulating valve is also installed on the dual-electrically controlled solenoid valve.

[0015] The above-mentioned two-way discharging device for a liquid silicone feeding system, wherein the barrel is made of a transparent material, and the outer wall of the barrel is provided with a plurality of scale lines.

[0016] The above-mentioned bidirectional discharging device for a liquid silicone feeding system, wherein the pneumatic motor fixing bracket includes: a first fixing seat, a plurality of connecting rods, and a connecting seat; the first fixing seat and the connecting seat are installed through the plurality of connecting rods, and an area is formed between the first fixing seat, the connecting seat and the plurality of connecting rods, the pneumatic motor is installed on the first fixing seat, and the output shaft of the pneumatic motor passes through the first fixing seat and extends into the area to install the valve stem.

[0017] The above-mentioned bidirectional discharging device for a liquid silicone feeding system, wherein the pump body fixing bracket includes: a plurality of support rods and a second fixing seat; one end of the second fixing seat is installed with the connecting seat through the plurality of support rods, and the sealing seat is installed at one end of the second fixing seat, the other end of the barrel extends into the second fixing seat and is connected with the sealing seat, an installation area is formed between the connecting seat, the second fixing seat and the plurality of support rods, one end of the cylinder body is installed on the connecting seat, and the other end of the cylinder body extends into the installation area and is connected with the sealing seat.

[0018] Compared with the prior art, the above technical solution has the following positive effects:

[0019] 1. By using high-efficiency spring seal components, the overall leakage control capability of the device is increased.

[0020] 2. By using a two-way discharging design device, the working efficiency is higher, the flow rate is larger, the discharging is more continuous, the discharging speed is faster, and the control accuracy is higher.

[0021] 3. By using liquid level sensors, system control becomes simpler and more intelligent. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a cross-sectional view of a two-way discharging device for a liquid silicone feeding system according to the present invention.

[0023] Figure 2 This is a schematic diagram of the spring seal assembly in the present invention.

[0024] Figure 3 This is a schematic diagram of the piston moving downward in the present invention.

[0025] Figure 4 This is a schematic diagram of the piston moving upward in the present invention.

[0026] Figure 5 This is a schematic diagram of a two-way discharging device for a liquid silicone feeding system of the present invention.

[0027] Figure 6 This is a three-dimensional diagram of a two-way discharging device for a liquid silicone feeding system according to the present invention.

[0028] 1. Dual-electric solenoid valve; 2. Pneumatic motor; 3. Pneumatic motor fixing bracket; 4. Piston-cylinder assembly; 41. Valve stem; 42. Piston; 43. Piston gland; 44. Cylinder; 45. Guide ring; 46. Bidirectional sealing ring; 47. O-ring; 5. Spring seal assembly; 51. Sealing seat; 52. Spring; 53. Steel ball; 6. Barrel; 7. Pump body fixing bracket; 8. Pressure regulating valve; 9. Coupling; 10. Liquid level sensor; 11. First fixing seat; 12. Connecting rod; 13. Connecting seat; 14. Second fixing seat; 15. Support rod. DETAILED DESCRIPTION

[0029] The present invention will be further described below with reference to the accompanying drawings and specific implementations, but they are not intended to limit the present invention.

[0030] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by those familiar with this technology. They are not used to limit the conditions for implementation of the present invention and therefore have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed in the present invention without affecting the efficacy and purpose of the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present invention. Changes or adjustments in their relative relationships should also be considered as the scope of implementation of the present invention without substantially changing the technical content.

[0031] like Figures 1 to 6 As shown, a preferred embodiment of a bidirectional discharging device for a liquid silicone feeding system is shown, which includes: a dual-electrically controlled solenoid valve 1, a pneumatic motor 2, a pneumatic motor fixing bracket 3, a piston-cylinder assembly 4, a spring sealing assembly 5, a barrel 6, and a pump body fixing bracket 7.

[0032] The pneumatic motor 2 is installed on the pneumatic motor fixing bracket 3; the dual-electrically controlled solenoid valve 1 is installed on the pneumatic motor 2, and the dual-electrically controlled solenoid valve 1 is connected to the pneumatic motor 2, and the dual-electrically controlled solenoid valve 1 controls the reciprocating motion of the pneumatic motor 2; the piston-cylinder assembly 4 and the barrel 6 are both fixedly installed on the pump body fixing bracket 7, and the output shaft of the pneumatic motor 2 is installed on the piston-cylinder assembly 4, and the spring sealing assembly 5 is installed on the discharge port of the barrel 6. The pneumatic motor 2 drives the piston-cylinder assembly 4 to reciprocate, thereby compressing or relaxing the spring sealing assembly 5, and the discharge port of the barrel 6 is opened or closed; wherein, the piston-cylinder assembly 4 includes: a valve stem 41, a piston 42, a cylinder body 44, and a piston pressure cover 43; the cylinder body 44 is fixedly installed on the pump body fixing bracket 7, the output shaft of the pneumatic motor 2 is installed on one end of the valve stem 41, the other end of the valve stem 41 extends into the cylinder body 44 and passes through the piston 42 to install the piston pressure cover 43, and the outside of the piston 42 contacts the inner wall of the cylinder body 44.

[0033] During actual use, the barrel 6 is used to hold silicone dye, and the dual-electrically controlled solenoid valve 1 controls the regular reciprocating motion of the pneumatic motor 2. The operating speed of the pneumatic motor 2 is adjusted by adjusting the intake pressure. The pneumatic motor 2 drives the valve stem 41 to reciprocate, and the valve stem 41 drives the piston to reciprocate. Since the diameter of the valve stem 41 is constant, the reciprocating distance of the piston 42 is the same, so the volume of colorant pumped out by the reciprocating piston is the same, so the reciprocating flow rate is uniform and continuous.

[0034] See also Figure 3 As shown, when the piston 42 moves downward, the end surface of the piston 42 will be compressed so that the fluid below the piston 42 is pressed toward the outlet of the piston-cylinder assembly 4, see Figure 4 As shown, when the piston 42 moves upward, the piston cover 43 is out of contact with the piston 42, and instead the valve stem 41 is in contact with the end face of the piston 42, so that the valve stem 41 pushes the piston 42 upward. Since the two-way sealing ring 46 is sealed in reciprocating motion, the high-pressure fluid can only be pressed toward the outlet of the piston-cylinder assembly 4 along the gap between the piston 42 and the valve stem 41. In this way, when the valve stem reciprocates, this feeding device can pump fluid outward. Compared with the traditional one-way discharge feeding pump, the feeding efficiency is high, the flow rate is large, and there is no invalid working stroke.

[0035] The wall of the cylinder body 44 has very high requirements for hardness and roughness. The surface hardness requirement is generally higher than the Rockwell hardness 55 and the surface roughness is generally required to be around 0.2 microns. During operation, special lubricating oil must be applied between the cylinder body 44 and the piston 42. This will increase the life of the piston 42. Generally speaking, the cylinder body 44 can allow the piston 42 to reciprocate about 500,000 to 1,000,000 times, which depends on the medium of the conveying fluid.

[0036] The valve stem 41 is connected to the piston 42 through the piston cover 43, and it is also connected to the pneumatic motor 2 through the coupling 9. It is a power transmission component. During reciprocating operation, its surface passes through a static sealing assembly, and its surface roughness requirement is also very high, generally 0.2 microns or less.

[0037] The present invention also has the following implementation methods based on the above:

[0038] Furthermore, a bidirectional discharge device for a liquid silicone feeding system is provided, wherein the spring seal assembly 5 comprises: a sealing seat 51, a spring 52, and a steel ball 53; the two ends of the sealing seat 51 are through-set, one end of the sealing seat 51 is mounted on the pump body fixing bracket 7, and one end of the sealing seat 51 is communicated with the barrel 6, and the other end of the sealing seat 51 extends into and communicates with the cylinder 44, the spring 52 and the steel ball 53 are both arranged inside the sealing seat 51, and one end of the spring 52 abuts against the inside of the sealing seat 51, and the other end of the spring 52 abuts against the steel ball 53, and the steel ball 53 can block the discharge port of the barrel 6. Specifically, the spring 52 is pre-compressed to form a seal between the steel ball 53 and the sealing seat 51, thereby sealing the discharge port of the barrel 6. When the piston 42 reciprocates, a certain negative pressure is formed under the steel ball 53, causing the steel ball 53 to move downward, and the fluid to pass through the gap between the steel ball 53 and the sealing seat 51. When the piston 42 stops running, since the spring 52 is pre-compressed to a certain extent, the spring 52 will push the steel ball 53 to form a seal with the discharge port of the barrel 6, so that the colorant in the barrel 6 is isolated on the steel ball 53.

[0039] Furthermore, a two-way discharging device for a liquid silicone feeding system is provided, wherein a guide ring is provided on the outer sleeve of the piston.

[0040] Furthermore, a bidirectional discharging device for a liquid silicone feeding system is provided, wherein the outer wall of the piston 42 is provided with a bidirectional sealing ring 46. Specifically, the bidirectional sealing ring 46 increases the sealing performance between the piston 42 and the rigid body 44.

[0041] Furthermore, a bidirectional discharging device for a liquid silicone feeding system further includes: a liquid level sensor 10; the liquid level sensor 10 is installed in the barrel 6. Specifically, the barrel 6 is used to store silicone dye, and the liquid level sensor 10 is used to detect the liquid level in the barrel 6. When the barrel 6 is full of dye, the liquid level sensor 10 displays green. When the dye in the barrel 6 is lower than the liquid level sensor 10, the liquid level sensor 10 cannot detect the presence of fluid, and the signal light turns yellow. At this time, it will send a signal to the host computer to indicate that the barrel 6 is out of material.

[0042] Furthermore, a bidirectional discharging device for a liquid silicone feeding system is provided, wherein the output shaft of the pneumatic motor 2 is connected to the valve stem 41 via a coupling 9. Specifically, the pneumatic motor 2 drives the valve stem 41 to reciprocate via the coupling 9.

[0043] Furthermore, a bidirectional discharging device for a liquid silicone feeding system is provided, wherein a pressure regulating valve 8 is further installed on the dual-electrically controlled solenoid valve 1. Specifically, the inlet pressure of the dual-electrically controlled solenoid valve 1 is adjusted by the pressure regulating valve 8. When the feeding speed needs to be accelerated, the pressure of the pressure regulating valve 8 is increased, and when the feeding speed needs to be slowed down, the pressure of the pressure regulating valve 8 is reduced.

[0044] Furthermore, a bidirectional discharging device for a liquid silicone feeding system is provided, wherein the barrel 6 is made of a transparent material and has a plurality of scale lines on its outer wall. Specifically, the transparent barrel 6 allows the operator to directly see the liquid level inside the barrel 6, allowing timely replenishment of the silicone colorant when it is almost depleted. Furthermore, the scale lines on the outer wall of the barrel 6 allow the operator to observe the storage status of the silicone colorant inside.

[0045] Furthermore, a bidirectional discharging device for a liquid silicone feeding system is provided, wherein the pneumatic motor fixing bracket 3 includes: a first fixing seat 11, a plurality of connecting rods 12, and a connecting seat 13; the first fixing seat 11 and the connecting seat 13 are mounted via the plurality of connecting rods 12, and an area is formed between the first fixing seat 11, the connecting seat 13, and the plurality of connecting rods 12; the pneumatic motor 2 is mounted on the first fixing seat 11, and the output shaft of the pneumatic motor 2 extends through the first fixing seat 11 into the area and is mounted on the valve stem 41. Specifically, the first fixing seat 11 and the connecting seat 13 are used for mounting, and the plurality of connecting rods 12 serve as limiters.

[0046] Furthermore, a bidirectional discharge device for a liquid silicone feeding system is provided, wherein the pump body fixing bracket 7 includes: a plurality of support rods 15 and a second fixing seat 14; one end of the second fixing seat 14 is mounted to the connecting seat 13 via the plurality of support rods 15, and a sealing seat 51 is mounted to one end of the second fixing seat 14; the other end of the barrel 6 extends into the second fixing seat 14 and communicates with the sealing seat 51; an installation area is formed between the connecting seat 13, the second fixing seat 14, and the plurality of support rods 15; one end of the cylinder body 44 is mounted on the connecting seat 13, and the other end of the cylinder body 44 extends into the installation area and is connected to the sealing seat 51. Specifically, the connecting seat 13 and the second mounting seat 14 serve as installation, and the plurality of support rods 15 serve as limiters.

[0047] The above description is only a preferred embodiment of the present invention and does not limit the implementation method and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A two-way discharging device for a liquid silicone feeding system, characterized in that: include: Double electric control solenoid valve, pneumatic motor, pneumatic motor fixing bracket, piston cylinder assembly, spring seal assembly, barrel, pump body fixing bracket; The pneumatic motor is mounted on the pneumatic motor fixing bracket; The dual-electrically controlled solenoid valve is installed on the pneumatic motor, the dual-electrically controlled solenoid valve is communicated with the pneumatic motor, and the dual-electrically controlled solenoid valve controls the reciprocating motion of the pneumatic motor; The piston-cylinder assembly and the barrel are both fixedly mounted on the pump body fixing bracket, and the output shaft of the pneumatic motor is mounted on the piston-cylinder assembly, and the spring sealing assembly is mounted on the discharge port of the barrel. The pneumatic motor drives the piston-cylinder assembly to reciprocate so as to compress or relax the spring sealing assembly, and the discharge port of the barrel is opened or closed; Among them, the piston-cylinder assembly includes: a valve stem, a piston, a cylinder body, and a piston cover; the cylinder body is fixedly installed on the pump body fixing bracket, the output shaft of the pneumatic motor is installed on one end of the valve stem, the other end of the valve stem extends into the cylinder body and passes through the piston to install the piston cover, and the outside of the piston is in contact with the inner wall of the cylinder body.

2. A two-way discharging device for a liquid silicone feeding system according to claim 1, characterized in that: The spring sealing assembly includes: a sealing seat, a spring, and a steel ball; the two ends of the sealing seat are through-set, one end of the sealing seat is installed on the pump body fixing bracket, and one end of the sealing seat is communicated with the barrel, and the other end of the sealing seat extends into the cylinder body and is communicated with the cylinder body, the spring and the steel ball are both arranged inside the sealing seat, and one end of the spring abuts against the inside of the sealing seat, and the other end of the spring abuts against the steel ball, and the steel ball can block the discharge port of the barrel.

3. A two-way discharging device for a liquid silicone feeding system according to claim 1, characterized in that: The outer sleeve of the piston is provided with a guide ring.

4. A two-way discharging device for a liquid silicone feeding system according to claim 1, characterized in that: The outer wall of the piston is sleeved with a bidirectional sealing ring.

5. The two-way discharging device for a liquid silicone feeding system according to claim 1, characterized in that: Also includes: Liquid level sensor; the liquid level sensor is installed on the barrel.

6. A two-way discharging device for a liquid silicone feeding system according to claim 1, characterized in that: The output shaft of the pneumatic motor is connected to the valve stem through a coupling.

7. A two-way discharging device for a liquid silicone feeding system according to claim 1, characterized in that: A pressure regulating valve is also installed on the dual-electrically controlled solenoid valve.

8. The two-way discharging device for a liquid silicone feeding system according to claim 1, characterized in that: The barrel is made of a transparent material, and a plurality of scale lines are provided on the outer wall of the barrel.

9. The two-way discharging device for a liquid silicone feeding system according to claim 2, characterized in that: The pneumatic motor fixing bracket includes: a first fixing seat, a plurality of connecting rods, and a connecting seat; the first fixing seat and the connecting seat are installed through the plurality of connecting rods, and an area is formed between the first fixing seat, the connecting seat and the plurality of connecting rods. The pneumatic motor is installed on the first fixing seat, and the output shaft of the pneumatic motor passes through the first fixing seat and extends into the area to install the valve stem.

10. A two-way discharging device for a liquid silicone feeding system according to claim 9, characterized in that: The pump body fixing bracket includes: several support rods and a second fixing seat; one end of the second fixing seat is installed with the connecting seat through several support rods, and the sealing seat is installed at one end of the second fixing seat, the other end of the barrel extends into the second fixing seat and is connected with the sealing seat, and an installation area is formed between the connecting seat, the second fixing seat and several support rods, one end of the cylinder body is installed on the connecting seat, and the other end of the cylinder body extends into the installation area and is connected with the sealing seat.

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