CN106113397B - Liquid silica gel feeder that can accurate ratio - Google Patents

Abstract

The invention relates to a liquid silica gel feeder capable of accurately proportioning, which comprises a rack, a control electronic box, a lifting device, an A glue pumping device, a B glue pumping device, a plurality of hollow rubber tubes and a quantitative mechanism, wherein the control electronic box is arranged in front of the rack, two storage barrels filled with the A glue and the B glue are arranged on the rack, the lifting device drives the A glue pumping device and the B glue pumping device to extend into the storage barrels for pumping the materials, the liquid silica gel feeder also comprises two displacement sensors and a pressure proportional valve, the two displacement sensors respectively and accurately detect the displacement of the A glue pumping device and the B glue pumping device extending into the storage barrels, the control electronic box judges whether the pumping speeds of the A glue and the B glue are equal according to the displacement, when the two displacement amounts are not equal, and the pressure proportional valve controls the material pumping speed of the glue A pumping device or the glue B pumping device, and the volume ratio of the glue A to the glue B is accurately controlled to be 1:1, and the glue A enters the quantitative mechanism.

Description

A liquid silicone feeder capable of precise proportioning

technical field

The invention relates to a liquid silica gel feeder, in particular to a liquid silica gel feeder capable of precise proportioning.

Background technique

In the silicone molding industry, according to the form of silica gel, silica gel is divided into liquid silica gel and solid silica gel. Liquid silica gel has excellent transparency, tear resistance, good resilience, antibacterial denaturation, thermal stability, and aging resistance. And weather resistance, and no harmful substances after vulcanization, so liquid silica gel gradually replaces solid silica gel as the main raw material for injection molding. The liquid silicone in the current liquid silicone feeder is generally directly mixed with A/B two kinds of glue at a ratio of 1:1. The ratio error is relatively large, and the error value is 2% to 4%, which will cause liquid silica gel with different properties, which cannot meet the actual use requirements and cannot meet the actual needs of production.

Contents of the invention

In order to solve the technical problem of the large error in the mixing ratio of the existing A/B glue, the present invention provides a liquid silicone feeder that can be accurately proportioned, and the specific technical scheme is as follows:

A liquid silicone feeding machine that can be accurately proportioned, including a frame, a control electric box, a lifting device, a rubber pumping device, a B rubber pumping device, multiple hollow rubber hoses and a quantitative mechanism, and the control electric box is installed on the machine. In front of the frame, two storage barrels with A glue and B glue are placed on the frame, and the lifting device drives the A glue pumping device and the B glue pumping device to extend into the storage barrel for pumping, and the liquid silicone feeder returns It includes two displacement sensors and a pressure proportional valve. The two displacement sensors accurately detect the displacement of the A glue pumping device and the B glue pumping device into the storage barrel respectively, and the control electric box judges the displacement of A and B glue according to the displacement. Whether the pumping speed is equal or not, when the two displacements are not equal, the pressure proportional valve controls the pumping speed of the A glue pumping device or the B glue pumping device, and accurately controls the volume ratio of A glue and B glue to 1:1 to enter quantitative mechanism.

As a preferred solution of the present invention, a control circuit board is provided in the control electric box, and the control circuit board includes a central processing module, a signal input module and a signal output module, and the displacement detected by the displacement sensor is converted into The electrical signal is transmitted to the central processing module. The central processing module is preset with the initial values of glue A and glue B. The central processing module compares the detection signal with the initial values of glue A and glue B to obtain the real-time values of glue A and glue B. Ratio, if the ratio is not 1:1, the signal output module outputs the signal to the pressure proportional valve, and the pressure proportional valve adjusts the pumping speed.

As a preferred solution of the present invention, the A glue pumping device and the B glue pumping device have the same structure. The A glue pumping device includes a beam, a glue pumping cylinder, a glue pump body and a large pressure plate. Glue cylinder, the piston rod of the glue pumping cylinder extends into the glue pump body, and a large pressure plate is installed under the glue pump body. Move, the piston rod of the pumping cylinder stretches out to extract the A glue in the storage barrel and transports it to the outside through the rubber hose. When the pumping speed needs to be adjusted, the pressure proportional valve controls the air pressure that drives the pumping cylinder, and then controls the stretching speed of the piston rod. , to adjust the pumping speed.

As a preferred solution of the present invention, the lifting device has four lifting cylinders, a pressure regulating valve and a hand-rotary valve. Installed on the four corners of the frame, the piston rod of the lifting cylinder can extend upwards, the two lifting cylinders on the left are linked through the air pipe, the two lifting cylinders on the right are linked through the air pipe, and the piston rods of the two lifting cylinders on the left Drive the A glue pumping device to move up and down, the piston rods of the two lifting cylinders on the right drive the B glue pumping device to move up and down, and two displacement sensors are installed on the sides of the two lifting cylinders on the front side; used to detect the displacement of the lifting cylinder quantity.

As a preferred solution of the present invention, the displacement sensor is a magnetic suspension displacement sensor.

As a preferred solution of the present invention, the pressure proportional valve is a hydraulic proportional valve or a pneumatic proportional valve.

As a preferred solution of the present invention, the liquid silicone feeder also includes a color paste pumping device for extracting the color paste.

Beneficial effects of the present invention: when the liquid silicone feeder of the present invention is used to mix AB glue, the displacement sensor can accurately detect the displacement of the A glue pumping device and the B glue pumping device extending into the respective storage barrels, thereby monitoring the AB glue in real time Mixing ratio, when the displacements are not equal, the pressure proportional valve adjusts the driving air pressure of the glue pumping cylinder to speed up the glue pumping speed of glue A or glue B, ensuring that glue A and glue B are mixed at a volume ratio of 1:1, and the error value is controlled within Below 0.1%, with high precision, high-quality liquid silica gel can be obtained, which can meet the actual needs of production and greatly improve the quality of products.

Description of drawings

Fig. 1 is a perspective view of the present invention;

Fig. 2 is an exploded view of the present invention;

Fig. 3 is the front view of the present invention after hiding the control panel;

Fig. 4 is the perspective view of A glue material pumping device and B glue material pumping device of the present invention;

Fig. 5 is a perspective view of the lifting device of the present invention.

Detailed ways

Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further:

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated position or element must have a specific orientation, and must have a specific orientation. construction and operation, therefore, should not be construed as limiting the invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention depending on the specific circumstances.

As shown in Figure 1 and Figure 2, a liquid silicone feeder that can be accurately proportioned includes a frame 1, a control electrical box 2, a lifting device 3, an A rubber pumping device 4, a B rubber pumping device 5, multiple A hollow rubber hose (not shown) and a quantitative mechanism 6, the control electrical box 2 is installed in front of the frame 1, two storage barrels 7 with glue A and glue B are placed on the frame 1, and the lifting device 3 is driven Glue A pumping device 4 and glue B pumping device 5 extend into the storage tank 7 to pump materials. The liquid silicone feeder also includes two displacement sensors 8 and a pressure proportional valve 9. The two displacement sensors 8 accurately detect the glue A. The displacement of the pumping device 4 and the B glue pumping device 5 extending into the storage barrel 7, the control electric box 2 judges whether the pumping speeds of A and B glue are equal according to the displacement. When the two displacements are not equal, the pressure Proportional valve 9 controls the pumping speed of glue A pumping device 4 or glue B pumping device 5, and precisely controls the volume ratio of glue A to glue B to enter the quantitative mechanism 6 at 1:1.

Specifically, the control electric box 2 is provided with a control circuit board. The control circuit board includes a central processing module, a signal input module and a signal output module. The displacement detected by the displacement sensor is converted into an electrical signal by the signal input module and transmitted to the Central processing module, the central processing module is preset with the initial values of glue A and glue B, and the central processing module compares the detection signal with the initial values of glue A and glue B to obtain the real-time ratio of glue A and glue B, if the ratio Not 1:1, the signal output module outputs the signal to the pressure proportional valve, and the pressure proportional valve 9 adjusts the pumping speed.

Specifically, as shown in Figure 4, the A glue pumping device 4 and the B glue pumping device 5 have the same structure, and the A glue pumping device 4 includes a beam 41, a glue pumping cylinder 42, a glue pump body 43 and a large pressure Plate 44, glue pumping cylinder 42 is installed under the crossbeam 41, crossbeam 41 connects the large pressure plate 44 through the pull rod 45, the piston rod of the glue pumping cylinder 42 extends into the glue pump body 43, and the big pressure plate 44 is installed under the glue pump body 43 , the large pressure plate 44 is provided with a pumping hole, the large pressure plate 44 moves down with the decline of the rubber material in the storage tank 7, and the piston rod of the rubber pumping cylinder 42 stretches out to extract the A glue in the storage tank 7 and transports it to Externally, when the pumping speed needs to be adjusted, the pressure proportional valve 9 controls the air pressure that drives the action of the glue pumping cylinder 42, and then controls the extension speed of the piston rod to adjust the glue pumping speed.

Specifically, as shown in Figure 5, the lifting device 3 drives the entire A glue pumping device 4 or B glue pumping device 5 up and down through the connecting beam 41, and the lifting device 3 includes four lifting cylinders 31, a pressure regulating valve 32 and a manual The rotary valve 33 and the hand rotary valve 33 control the lifting cylinder 31 to start, and the pressure regulating valve 32 adjusts the air pressure for driving the lifting cylinder 31. The four lifting cylinders 31 are respectively installed on the four corners of the frame 1, and the piston rod of the lifting cylinder 31 It can extend upwards, the left two lifting cylinders 31 realize linkage through the air pipe, the right two lifting cylinders 31 realize linkage through the air pipe, and the piston rods of the left two lifting cylinders 31 drive the A rubber pumping device 4 to move up and down, and the right The piston rods of the two lifting cylinders 31 on the side drive the B glue pumping device 5 to move up and down, the piston rods of the lifting cylinders 31 are connected to the beam 41, and the two displacement sensors 8 are installed on the sides of the two lifting cylinders 31 on the front side; the displacement sensors 8 Detect the displacement of the piston rod of the lifting cylinder 31, thereby detecting the position where the large pressure plate 44 extends into the material storage barrel 7.

Specifically, the displacement sensor 8 is a magnetically suspended displacement sensor, which will not cause wear and tear, and the detection data is accurate. In addition, the pressure proportional valve 9 is a hydraulic proportional valve or a pneumatic proportional valve, which is selected according to the actual power and has a wide range of applications. In order to meet the requirements of color ratio, the liquid silicone feeder also includes a color paste pumping device 10 for extracting color paste.

The working principle of the present invention: the piston rod of the lifting cylinder 31 extends upwards, drives the A glue pumping device 4 and the B glue pumping device 5 to rise, and places the storage barrels 7 with A glue and B glue on the frame respectively 1, adjust the air pressure to drive the lifting cylinder 31 through the pressure regulating valve 32, so that the A rubber pumping device 4 and the B rubber pumping device 5 just extend into the storage tank 7; Descending and moving down, when A glue pumping device 4 and B glue pumping device 5 extract A glue and B glue, A glue pumping device 4 and B glue pumping device 5 move down through the beam to drive the piston of lifting cylinder 31 The rod shrinks, and the two displacement sensors 8 respectively detect the displacement of the A glue pumping device 4 and the B glue pumping device 5. When the displacements are not equal, the control electric box 1 controls the pressure proportional valve 9 to start, and the pressure proportional valve 9 adjusts the pumping. Material speed, so as to ensure that the ratio of AB glue is 1:1.

The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments. It cannot be determined that the specific implementation of the present invention is only limited to these descriptions. Under the premise, some simple deduction or replacement can also be made, which should be considered as belonging to the protection scope of the present invention.

Claims (7)

1. A liquid silicone feeder that can be accurately proportioned, including a frame, a control electric box, a lifting device, a rubber pumping device, a B rubber pumping device, multiple hollow rubber hoses and a quantitative mechanism, and the control electric box is installed In front of the frame, two storage barrels with A glue and B glue are placed on the frame, and the lifting device drives the A glue pumping device and the B glue pumping device to extend into the storage barrel for pumping. It is characterized in that : The liquid silicone feeder also includes two displacement sensors and a pressure proportional valve. The two displacement sensors accurately detect the displacement of the A glue pumping device and the B glue pumping device into the storage barrel respectively, and the control electric box is based on the displacement. Judging whether the pumping speeds of glue A and glue B are equal, and when the two displacements are not equal, the pressure proportional valve controls the pumping speed of the glue A pumping device or the glue B glue pumping device, and accurately controls the volume ratio of glue A and glue B Enter the quantitative institution for 1:1. 2. A liquid silicone feeder that can be accurately proportioned according to claim 1, wherein a control circuit board is provided in the control electric box, and the control circuit board includes a central processing module, a signal input module and a signal input module. The output module, the displacement detected by the displacement sensor is converted into an electrical signal by the signal input module and transmitted to the central processing module. The central processing module is preset with the initial values of A glue and B glue. The initial value of B glue is compared to obtain the real-time ratio of A glue and B glue. If the ratio is not 1:1, the signal output module outputs the signal to the pressure proportional valve, and the pressure proportional valve adjusts the pumping speed. 3. A liquid silicone feeding machine capable of precise proportioning according to claim 1, characterized in that: the A glue pumping device and the B glue pumping device have the same structure, and the A glue pumping device includes a beam, a pumping Glue cylinder, glue pump body and large pressure plate, the glue pump cylinder is installed under the beam, the piston rod of the glue pump cylinder extends into the glue pump body, and the large pressure plate is installed under the glue pump body, and the large pressure plate is equipped hole, the large pressure plate moves down with the decline of the rubber material in the storage tank, and the piston rod of the pumping cylinder stretches out to extract the A glue in the storage tank and transports it to the outside through the rubber hose. When the pumping speed needs to be adjusted, the pressure proportional valve controls The air pressure that drives the action of the glue pumping cylinder controls the extension speed of the piston rod and adjusts the glue pumping speed. 4. A liquid silicone feeder that can be accurately proportioned according to claim 1, wherein the lifting device includes four lifting cylinders, a pressure regulating valve and a hand valve, and the hand valve controls the start of the lifting cylinder , the pressure regulating valve adjusts the air pressure that drives the movement of the lifting cylinder. The four lifting cylinders are respectively installed at the four corners of the frame. The piston rod of the lifting cylinder can extend upwards. The two lifting cylinders are linked through the air pipe. The piston rods of the two lifting cylinders on the left drive the rubber pumping device A to move up and down, and the piston rods of the two lifting cylinders on the right drive the rubber pumping device B to move up and down. The two displacement sensors are installed on the The sides of the two lifting cylinders on the front side; used to detect the displacement of the lifting cylinders. 5. A liquid silicone feeder capable of precise proportioning according to claim 1, characterized in that: the displacement sensor is a magnetic suspension displacement sensor. 6. A liquid silicone feeder capable of precise proportioning according to claim 1, wherein the pressure proportional valve is a hydraulic proportional valve or a pneumatic proportional valve. 7. A liquid silicone feeder capable of precise proportioning according to claim 1, characterized in that it further comprises a color paste pumping device for extracting color paste.