Quantitative filling system and method for ultrahigh-viscosity materials

Abstract

The invention provides an ultrahigh-viscosity material quantitative filling system and method.The quantitative filling system comprises a heat preservation cylinder, a pressure stabilizing module, a metering module and a driving module; a first driving device of the pressure stabilizing module drives a piston head to move downwards in a heat preservation cylinder, so that ultrahigh-viscosity materials in the heat preservation cylinder are pressed into a quantitative cylinder of the metering module, and a driven push rod of the metering module moves towards a quantitative push rod of the driving module; in the discharging mode, the quantitative push rod abuts against and pushes the passive push rod to move towards the discharging port of the metering module. Through cooperation of the pressure stabilizing module, the metering module and the driving module, split design of pressure stabilizing metering, the driving module and the metering module can be achieved, a traditional cylinder score metering mode can be changed into an internal pressure expansion metering mode, the filling precision of ultrahigh-viscosity materials with low fluidity can be improved, weighing waiting can be avoided, and the filling precision of the ultrahigh-viscosity materials with low fluidity can be improved. And the filling efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of quantitative filling, and in particular to a system and method for quantitative filling of ultra-high viscosity materials. Background Art

[0002] Due to the poor fluidity of ultra-high viscosity materials (such as resins), it is difficult for traditional filling equipment to accurately control the filling volume. Therefore, the current market generally uses a weighing quantitative filling method using electronic scales and other weighing devices for the filling of ultra-high viscosity materials.

[0003] For example, a Chinese patent with publication number CN221954620U discloses a resin quantitative filling device, in which a tank body is fixed on the upper end of a bottom plate, an electronic scale is provided on the upper end of the bottom plate, a discharge pipe is provided on the lower end of the tank body, a rotating shaft is provided inside the tank body, the top end of the rotating shaft is connected to the output end of a motor, and a feeding screw penetrating the discharge pipe is provided on the bottom end of the rotating shaft. After the motor is started, the rotating shaft can drive the feeding screw to rotate inside the discharge pipe, so that the resin material in the tank body can flow into a designated container through the discharge pipe, which is convenient for controlling the discharge amount of the resin. As the container is filled, the electronic scale can weigh the container at any time, which is convenient for quantitative filling.

[0004] For another example, a Chinese patent with publication number CN210258899U discloses an automatic quantitative filling system for acrylic resin, which includes a filling head, a weighing device, a pallet feeder and a pushing mechanism. The weighing device weighs the pallet and transmits the data to the controller of the filling system. The controller adds the weight of the pallet and the weight of a single filling of acrylic resin to obtain a data and saves it; an empty barrel is manually placed on the pallet, and then the filling head of the mixing kettle is inserted into the empty barrel, and then the solenoid valve is opened to start filling; when the weight above the weighing device reaches the previously added and saved data, the solenoid valve is automatically closed.

[0005] However, there are several obvious disadvantages in using the weighing method for quantitative filling: 1. It is easy to produce measurement errors: Since electronic scales are easily affected by factors such as ambient temperature, humidity, material flow rate, vibration, etc., errors may occur in the measurement results, especially when dealing with small-dose quantitative filling. 2. Limiting filling efficiency: In order to ensure the accuracy of weighing, the electronic scale may take a certain amount of time to stabilize the reading, which will limit the speed of the production line to a certain extent and reduce the filling efficiency. 3. Frequent maintenance: Electronic scales need to be calibrated and maintained regularly to ensure their accuracy and reliability.

[0006] Therefore, how to design a quantitative filling device for ultra-high viscosity materials with high precision and high filling efficiency is a technical problem to be solved urgently in this field. Summary of the invention

[0007] The purpose of the present invention is to overcome the defects of the prior art and provide a system and method for quantitative filling of ultra-high viscosity materials, which can solve the problems of low precision and low efficiency of quantitative filling of ultra-high viscosity materials in the prior art.

[0008] In order to achieve the above purpose and other purposes, the present invention is implemented by including the following technical solutions: as a first aspect, the present invention proposes a quantitative filling system for ultra-high viscosity materials, including a stand; a heat preservation cylinder, which is installed on the stand and is used to transfer and store ultra-high viscosity materials; a pressure stabilizing module, including a first driving device and a piston head, the first driving device is arranged on the stand, and the piston head moves in the heat preservation cylinder under the drive of the first driving device; a metering module, including a feed port, a discharge port and a quantitative cylinder, the feed port is connected to the heat preservation cylinder, and the discharge port is connected to the discharge port. The metering cylinder is connected with the feed port only in the feeding mode and is connected with the discharge port only in the discharge mode; the driving module comprises a metering push rod, and the metering push rod is in collinear contact with but not connected with the passive push rod of the metering cylinder; in the feeding mode, the first driving device drives the piston head to move downward in the insulation cylinder so that the ultra-high viscosity material in the insulation cylinder is pressed into the metering cylinder and the passive push rod moves toward the metering push rod; in the discharge mode, the metering push rod abuts against and pushes the passive push rod to move toward the discharge port.

[0009] In one embodiment, the metering module includes a rotary valve, which connects the insulation cylinder and the metering cylinder and blocks the discharge port when the rotary valve is in a first position, so that the metering module is in the feeding mode; when the rotary valve is in a second position, it connects the metering cylinder and the discharge port and blocks the feed port, so that the metering module is in the discharge mode.

[0010] In one embodiment, the metering module further comprises a heating shell, the metering cylinder is fixed in the heating shell via a positioning ring, and the rotary valve is rotatably mounted in the heating shell via a positioning bearing.

[0011] In one embodiment, an electric heating element is embedded in the heating shell, and the electric heating element is symmetrically arranged on the periphery of the metering cylinder and the rotary valve for heating the metering cylinder and the rotary valve.

[0012] In one embodiment, one end of the passive push rod is exposed from the heating shell, and a sealing ring is provided on the other end, and the passive push rod moves in the metering cylinder to measure the volume.

[0013] In one embodiment, the ultra-high viscosity material quantitative filling system further includes a switching module connected to the rotary valve and configured to drive the rotary valve to switch between the first position and the second position.

[0014] In one embodiment, the switching module includes a cylinder, a coupling and an angle position sensor. The cylinder is fixed on the stand, and its output end is connected to the rotary valve through the coupling. The angle position sensor is arranged on the outer end surface of the cylinder to determine the position of the rotary valve after the cylinder drives the rotary valve to move.

[0015] In one embodiment, the heat preservation cylinder is a double-layer structure, the ultra-high viscosity material is placed in the inner layer, and the outer layer is provided with a water inlet and a water outlet, and the heat preservation cylinder is connected to the hot water tank through the water inlet and the water outlet.

[0016] In one embodiment, an O-ring is provided on the outside of the joint between the feed port and the discharge port of the heat preservation cylinder.

[0017] As a second aspect, the present invention provides a method for quantitative filling of ultra-high viscosity materials, using the ultra-high viscosity material quantitative filling system provided in the first aspect for quantitative filling, the method comprising the steps of:

[0018] The metering module is placed in the discharging mode, and the quantitative push rod is driven to press against and push the passive push rod to compress the capacity of the quantitative cylinder, so that the air in the quantitative cylinder is discharged from the discharging port;

[0019] The metering module is adjusted to the feeding mode, and the first driving device drives the piston head downward to apply pressure to the heat preservation cylinder, so that the ultra-high viscosity material is pressed into the metering cylinder, and the passive push rod moves toward one side of the metering push rod under pressure, and at the same time, the metering push rod slowly retracts and detects the contact between the metering push rod and the passive push rod;

[0020] When the metering push rod is fully retracted and it is detected that the contact between the metering push rod and the passive push rod has not failed, it is determined that the inside of the metering cylinder is filled with the ultra-high viscosity material;

[0021] The metering module is adjusted to the discharging mode, and the quantitative push rod is driven to abut against and push the passive push rod to discharge the ultra-high viscosity material from the discharging port.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The present invention is a customized solution based on the characteristics of ultra-high viscosity materials. The dynamic coordination of the voltage stabilizing module, the driving module and the metering module is indispensable, which can solve the pain point of the high-precision filling machine with small metering of ultra-high viscosity materials known in the art;

[0024] 2. The present invention adopts a joint design of a voltage stabilizing module, a driving module and a metering module. The torque sensing mode of the servo motor in the voltage stabilizing module is used to accurately provide a stable pressure to the insulation cylinder, so as to realize the voltage stabilizing feeding before metering and filling. The torque mode of the servo motor in the driving module is used to cooperate with the voltage stabilizing module to form a pressure difference, and to perform push rod filling after the quantitative cylinder completes volume metering. The whole process is completed by forming a pressure difference at both ends of the passive push rod of the quantitative cylinder by the cooperation of the voltage stabilizing module and the driving module, so as to realize accurate volume metering. Whether the quantitative quantity is accurate can be directly judged by the contact between the quantitative push rod of the driving module and the passive push rod in the whole process, without the need to use a weighing device for weighing and quantifying. Compared with the traditional method of relying on piston movement to accurately measure the volume of ultra-high viscosity materials, which requires additional weighing and quantifying, the volume quantitative accuracy can be significantly improved, the weighing and replenishing link can be reduced, and the filling efficiency can be improved.

[0025] 3. The present invention breaks the conventional thinking that the push rod of the traditional driving device must be fixedly connected to the piston of the metering cylinder to realize the push-pull movement of the piston for volume measurement. It innovatively adopts the split design of the quantitative push rod of the driving module and the passive push rod in the metering cylinder. The driving device does not apply a pulling force to the passive push rod during the feeding stage of the metering cylinder, but resists the feeding movement of the passive push rod. The traditional piston push-pull metering method is changed to an internal pressure expansion metering method, so that the passive push rod is squeezed by the pressure on both sides, thereby increasing the filling density of the material in the metering cylinder, thereby improving the metering accuracy;

[0026] 4. The design of the rotary valve and the switching module of the present invention can realize accurate flow control, and at the same time, the structure is compact, the sealing is good, and the medium with high temperature and high pressure can be withstood, thus ensuring the stability and reliability of the system; at the same time, the traditional rotary valve is only used as a pipeline valve body to realize the flow direction control of the fluid, while in this solution, the rotary valve is not only used to control the flow direction of the ultra-high viscosity material, but also used as a blocking device for the passive push rod;

[0027] 5. The design of the heat preservation cylinder and the heating shell of the present invention can improve the fluidity of the ultra-high viscosity material in the entire system, and the dynamic coordination of the modules can further improve the quantitative accuracy;

[0028] 6. The design of each sealing ring in the present invention can improve the sealing performance of the system and further ensure the quantitative accuracy;

[0029] 7. The design of the cylinder and the coupling in the switching module of the present invention can improve the rotation control of the rotary valve, and the provision of the angle position sensor can improve the positioning accuracy of the first position and the second position. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 Shown is a schematic diagram of the three-dimensional structure from a first angle of a system for quantitatively filling ultra-high viscosity materials according to the present invention.

[0031] Figure 2 It is a schematic diagram of the three-dimensional structure from a second angle of a system for quantitatively filling ultra-high viscosity materials according to the present invention.

[0032] Figure 3 Shown is a cross-sectional schematic diagram of a system for quantitatively filling ultra-high viscosity materials according to the present invention.

[0033] Figure 4 It shows a cross-sectional schematic diagram of the main parts of the present invention, namely, the heat preservation bar, the metering module, the switching module and the driving module.

[0034] Figure 5 Shown is an exploded view of the metering module in the present invention.

[0035] Figure 6 Shown is a schematic structural diagram of the heating shell in the present invention (rotary valve installation side).

[0036] Figure 7 Shown is a cross-sectional view of a metering module in the present invention.

[0037] Figure 8 Shown is a schematic structural diagram of the transfer valve of the present invention.

[0038] In the figure: 100, stand; 110, quick-fitting parts; 120, support rod; 130, power seat; 200, insulation cylinder; 210, inner layer; 220, outer layer; 221, water inlet; 222, water outlet; 300, voltage stabilizing module; 310, first driving device; 311, first motor; 312, reducer; 313, first synchronous wheel; 314, synchronous belt; 315, second synchronous wheel; 316, ball screw; 317, screw nut; 318, linear guide; 319, first push rod; 320, piston head; 400, metering module; 410, heating shell; 411, feed inlet; 412, discharge outlet; 413, O-ring; 414, annular groove; 415, mounting hole; 420, metering cylinder; 421, passive push rod; 422, positioning ring; 423, sealing ring; 430, rotary valve; 431, first through hole; 432, second through hole; 433, third through hole; 434, bearing; 440, electric heating element; 450, discharge pipe; 500, switching module; 510, cylinder; 520, coupling; 530, rotary valve connecting rod; 540, angular position sensor; 550, limit stop; 600, drive module; 610, second drive device; 611, second motor; 612, cylinder body; 613, metering push rod; 700, wire groove. DETAILED DESCRIPTION

[0039] See also Figure 1-Figure 8The following describes the embodiments of the present invention through specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0040] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings in this specification are only used to match the contents disclosed in the specification for the technical personnel in this field to understand and read, and are not used to limit the conditions under which the present invention can be implemented. Therefore, they have no substantive technical significance. Any modification of the structure, change in the proportion relationship or adjustment of the size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0041] In the present invention, the serial numbers assigned to the components, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" mentioned in the present invention includes direct and indirect connections unless otherwise specified. The terms "include", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, and may include other elements not explicitly listed in addition to those listed.

[0042] like Figure 1-Figure 4 As shown, the present invention provides a quantitative filling system for ultra-high viscosity materials, including a stand 100, and a heat preservation cylinder 200, a voltage stabilizing module 300, a metering module 400, a switching module 500 and a driving module 600 arranged on the stand 100.

[0043] The heat preservation cylinder 200 is installed on the stand 100 through the quick-fitting part 110, and is used for transferring and storing ultra-high viscosity materials, such as resin. The heat preservation cylinder 200 adopts a double-layer structure, the ultra-high viscosity material is placed in the inner layer 210, and the water inlet 221 and the water outlet 222 of the outer layer 220 are respectively connected to the hot water tank. By forming a hot water circulation in the outer layer 220, the temperature of the ultra-high viscosity material in the inner layer 210 is maintained within a certain range, so as to improve the fluidity of the ultra-high viscosity material.

[0044] The pressure stabilizing module 300 is arranged on the stand 100 through the support rod 120, and may include a first driving device 310 and a piston head 320. The first driving device 310 is arranged on the stand 100 through the support rod 120, the piston head 320 is connected to the output end of the first driving device 310, and the piston head 320 is located directly above the insulation cylinder 200. The first driving device 310 drives the piston head 320 to move downward in the insulation cylinder 200 to apply sufficient downward pressure to the insulation cylinder 200, so that the ultra-high viscosity material in the insulation cylinder 200 can be pressed into the metering module 400 under a certain pressure. Specifically, the first driving device 310 is an electric cylinder, which may include a first motor 311, a ball screw 316, and a first push rod 319. The first motor 311 is a servo motor, and its output end is connected to the upper end of the ball screw 316 through a reducer 312, a first synchronous wheel 313, a synchronous belt 314, and a second synchronous wheel 315 in sequence. A screw nut 317 is sleeved on the ball screw 316, and one end of the screw nut 317 is slidably mounted on a linear guide 318 arranged parallel to the ball screw 316, and the other end is connected to the upper end of the first push rod 319, and the lower end of the first push rod 319 is connected to the piston head 320. The ball screw 316 converts the rotational motion of the first motor 311 into the linear motion of the first push rod 319 and the piston head 320, and enables the piston head 320 to play a pressurizing role when moving downward in the heat preservation cylinder 200. The first motor 311 can change the torque in real time to keep the material pressure in the heat preservation cylinder 200 within a certain range.

[0045] Please combine Figure 5-Figure 8The metering module 400 is installed on the stand 100, located below the insulation cylinder 200, and can be connected to the insulation cylinder 200, for quantitatively obtaining ultra-high viscosity materials from the insulation cylinder 200 and quantitatively delivering ultra-high viscosity materials to the packaging material. Specifically, the metering module 400 includes a heating shell 410, a quantitative cylinder 420, a rotary valve 430 and an electric heating element 440 arranged in the heating shell 410, and a discharge pipe 450 arranged outside the heating shell 410. The feed port 411 on the heating shell 410 is connected to the discharge port of the insulation cylinder 200, and the discharge port 412 on the heating shell 410 is connected to the discharge pipe 450. The feed port 411 and the discharge port 412 of the heating shell 410 can be arranged on the upper and lower end surfaces of the heating shell 410 in a corresponding position. The metering cylinder 420 can be a ceramic cylinder, which is arranged in the heating shell 410 in a direction perpendicular to the line connecting the feed port 411 and the discharge port 412 of the heating shell 410. One end of the passive push rod 421 in the metering cylinder 420 is exposed from the heating shell 410 after passing through the positioning ring 422. The positioning ring 422 can support and guide the movement of the passive push rod 421; the other end of the passive push rod 421 is a plug, which is set toward the rotary valve 430. A sealing ring 423 is provided on the plug, which can ensure that the passive push rod 421 moves in the metering cylinder 420 to measure the volume. The rotary valve 430 is provided with a first through hole 431, a second through hole 432 and a third through hole 433. The first through hole 431 is provided on the end surface of the rotary valve 430 facing the metering cylinder 420 and is always connected to the metering cylinder 420. The second through hole 432 and the third through hole 433 are provided on the circumferential surface of the rotary valve 430, and the line connecting the second through hole 432 and the axis of the rotary valve 430 and the line connecting the third through hole 433 and the axis of the rotary valve 430 are not colinear, so that when the rotary valve 430 is in the first position, the first through hole 431 is connected to the metering cylinder 420, and the second through hole 432 is connected to the metering cylinder 420. 2 is connected to the heat preservation cylinder 200, and the third through hole 433 is not connected to the discharge port 412 of the heating shell 410, that is, when in the first position, the heat preservation cylinder 200 feeds the quantitative cylinder 420 with a stable pressure, and the metering module 400 is in the feeding mode; when the rotary valve 430 is in the second position, the first through hole 431 is connected to the quantitative cylinder 420, the second through hole 432 is not connected to the heat preservation cylinder 200, and the third through hole 433 is connected to the discharge port 412 of the heating shell 410, that is, when in the second position, the quantitative cylinder 420 discharges the material to the discharge pipe 450, and the metering module 400 is in the discharge mode. The heating housing 410 may be embedded with an electric heating element 440, which is disposed in the heating housing 410 through the mounting hole 415 and symmetrically arranged outside the metering cylinder 420 and the rotary valve 430, and is used to heat the metering cylinder 420 and the rotary valve 430 to ensure that the temperature of the ultra-high viscosity material in the metering cylinder 420 and the rotary valve 430 is maintained within a certain range, so as to improve the fluidity of the ultra-high viscosity material, thereby improving the quantitative accuracy. The wires connected to the electric heating element 440 can be disposed in the wire groove 700 on the stand 100.

[0046] Furthermore, if Figure 7 As shown, in order to ensure smooth rotation of the rotary valve 430 in the heating shell 410 , the shaft end of the rotary valve 430 can be installed on the rear cover of the heating shell 410 through a bearing 434 .

[0047] Furthermore, if Figure 5 As shown, in order to ensure the sealing of the system, an O-ring 413 is provided on the outside of the joint between the feed port 411 of the heating shell 410 and the discharge port of the heat preservation cylinder 200. The O-ring 413 can be installed in the annular groove 414 of the heating shell 410. The annular groove 414 is concentrically arranged with the discharge port 412 of the heating shell 410. Figure 7 As shown, a plurality of O-rings are also provided between the rotary valve 430 and the heating shell 410 , and the plurality of O-rings are respectively installed in a plurality of annular grooves on the rotary valve 430 .

[0048] like Figure 4 As shown, the switching module 500 is connected to the rotary valve 430, and is used to drive the rotary valve 430 to switch between the first position and the second position. Specifically, the switching module 500 includes a cylinder 510, a coupling 520, a rotary valve connecting rod 530, and an angle position sensor 540. The cylinder 510 is fixed on the platform 100 through the power seat 130 and the support frame, and its output end is connected to the rotary valve 430 through the coupling 520 and the rotary valve connecting rod 530 in turn; the angle position sensor 540 is arranged on the outer end surface of the cylinder 510, and is used to detect the angle of the rotary valve 430 after the cylinder 510 drives the rotary valve 430 to rotate. In order to avoid excessive driving of the cylinder 510, a limit stopper 550 can also be arranged on the outer end surface of the cylinder 510. The angle position sensor 540 cooperates with the limit stopper 550 to ensure the accuracy of the rotation of the rotary valve 430 driven by the cylinder 510.

[0049] The driving module 600 includes a second driving device 610, which is an electric cylinder and may include a second motor 611, a cylinder body 612 and a quantitative push rod 613. The second motor 611 drives the quantitative push rod 613 to move left and right in the cylinder body 612, and the quantitative push rod 613 is in collinear contact with the passive push rod 421 but not connected. When the quantitative push rod 613 moves to the right, it can lean against and push the passive push rod 421 to move to the right, thereby pushing the ultra-high viscosity material quantitatively injected into the quantitative cylinder 420 into the packaging material to complete the quantitative filling.

[0050] In this embodiment, the heat preservation bar 200, the first driving device 310, the piston head 320, the metering cylinder 420, the rotary valve 430, the cylinder 510, the second driving device 610, etc. are all provided with two, and synchronous filling can be achieved to further improve the filling efficiency. In other embodiments, more than two heat preservation bars 200, the first driving device 310, the piston head 320, the metering cylinder 420, the rotary valve 430, the cylinder 510, and the second driving device 610 can be provided to complete more synchronous filling at the same time.

[0051] The method for quantitative filling using the ultra-high viscosity material quantitative filling system provided in this embodiment is as follows:

[0052] Step 1: put the metering module 400 in the discharging mode, drive the quantitative push rod 613 to press against and push the passive push rod 421 to compress the capacity of the quantitative cylinder 420, and discharge the air in the quantitative cylinder 420 from the discharging port 412;

[0053] Step 2: The metering module 400 is adjusted to the feeding mode, and the first driving device 310 drives the piston head 320 to pressurize the inside of the heat preservation cylinder 200 downward, so that the ultra-high viscosity material is pressed into the metering cylinder 420, and the passive push rod 421 moves toward the side of the metering push rod 613 under pressure, and at the same time, the metering push rod 613 slowly retracts and detects the contact between the metering push rod 613 and the passive push rod 421;

[0054] Step 3: When the metering push rod 613 is fully retracted and it is detected that the contact between the metering push rod 613 and the passive push rod 421 has not failed, it is determined that the metering cylinder 420 is filled with the ultra-high viscosity material;

[0055] Step 4: Adjust the metering module 400 to the discharging mode, drive the quantitative push rod 613 to lean against and push the passive push rod 421 to discharge the ultra-high viscosity material from the discharging port 412 .

[0056] Therefore, the present invention effectively overcomes various shortcomings in the prior art and has a high industrial utilization value. The above embodiments are only illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology can modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A quantitative filling system for ultra-high viscosity materials, characterized in that: include Stand; A heat preservation cylinder, installed on the stand, for transferring and storing ultra-high viscosity materials; A voltage stabilizing module, comprising a first driving device and a piston head, wherein the first driving device is arranged on the stand, and the piston head moves in the heat preservation cylinder under the drive of the first driving device; The metering module comprises a feed port, a discharge port and a metering cylinder, wherein the feed port is connected to the heat preservation cylinder, and the discharge port is connected to the discharge pipe; the metering cylinder is only connected to the feed port in the feed mode, and is only connected to the discharge port in the discharge mode; A driving module, comprising a quantitative push rod, wherein the quantitative push rod is in collinear contact with a passive push rod of the quantitative cylinder but is not connected; In the feeding mode, the first driving device drives the piston head to move downward in the heat preservation cylinder so that the ultra-high viscosity material in the heat preservation cylinder is pressed into the metering cylinder, and the passive push rod moves toward the metering push rod; In the discharging mode, the quantitative push rod abuts against and pushes the passive push rod to move toward the discharging port.

2. The ultra-high viscosity material quantitative filling system according to claim 1 is characterized in that: The metering module includes a rotary valve, which connects the insulation cylinder and the quantitative cylinder and blocks the discharge port when in the first position, so that the metering module is in the feeding mode; and connects the quantitative cylinder and the discharge port and blocks the feed port when in the second position, so that the metering module is in the discharge mode.

3. The ultra-high viscosity material quantitative filling system according to claim 2 is characterized in that: The metering module further comprises a heating shell, the metering cylinder is fixed in the heating shell via a positioning ring, and the rotary valve is rotatably mounted in the heating shell via a positioning bearing.

4. The ultra-high viscosity material quantitative filling system according to claim 3 is characterized in that: The heating shell is embedded with an electric heating element, which is symmetrically arranged on the periphery of the metering cylinder and the rotary valve for heating the metering cylinder and the rotary valve.

5. The ultra-high viscosity material quantitative filling system according to claim 3, characterized in that: One end of the passive push rod is exposed from the heating shell, and the other end is provided with a sealing ring, and moves in the quantitative cylinder to measure the volume.

6. The ultra-high viscosity material quantitative filling system according to claim 2, characterized in that: It also includes a switching module, which is connected to the rotary valve and is used to drive the rotary valve to switch between the first position and the second position.

7. The ultra-high viscosity material quantitative filling system according to claim 6, characterized in that: The switching module includes a cylinder, a coupling and an angle position sensor. The cylinder is fixed on the stand, and its output end is connected to the rotary valve through the coupling. The angle position sensor is arranged on the outer end surface of the cylinder and is used to determine the position of the rotary valve after the cylinder drives the rotary valve to move.

8. The ultra-high viscosity material quantitative filling system according to claim 1, characterized in that: The heat preservation cylinder is a double-layer structure, the ultra-high viscosity material is placed in the inner layer, and the outer layer is provided with a water inlet and a water outlet, and the heat preservation cylinder is connected to the hot water tank through the water inlet and the water outlet.

9. The ultra-high viscosity material quantitative filling system according to claim 1, characterized in that: An O-ring is arranged on the outside of the joint portion between the feed port and the discharge port of the heat preservation cylinder.

10. A method for quantitative filling of ultra-high viscosity materials, characterized in that: Quantitative filling is performed using the ultra-high viscosity material quantitative filling system as claimed in any one of claims 1 to 9, the method comprising the steps of: The metering module is placed in the discharging mode, and the quantitative push rod is driven to press against and push the passive push rod to compress the capacity of the quantitative cylinder, so that the air in the quantitative cylinder is discharged from the discharging port; The metering module is adjusted to the feeding mode, and the first driving device drives the piston head downward to apply pressure to the heat preservation cylinder, so that the ultra-high viscosity material is pressed into the metering cylinder, and the passive push rod moves toward one side of the metering push rod under pressure, and at the same time, the metering push rod slowly retracts and detects the contact between the metering push rod and the passive push rod; When the metering push rod is fully retracted and it is detected that the contact between the metering push rod and the passive push rod has not failed, it is determined that the inside of the metering cylinder is filled with the ultra-high viscosity material; The metering module is adjusted to the discharging mode, and the quantitative push rod is driven to abut against and push the passive push rod to discharge the ultra-high viscosity material from the discharging port.

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