A fully automatic injection device and control method

Abstract

The present invention discloses a fully automatic injection device and control method, comprising a feeding device for reciprocating telescopic feeding, a control device for controlling air intake, an injection device and an industrial computer for overall control, wherein a rotating disk is arranged on the right side of the control device, a material discharge cup is arranged on the lower side of the rotating disk, the injection device comprises a plurality of main valve body nozzles fixedly connected to the rotating disk and arranged in a circular array, an air intake block and a feed block are fixedly connected to the main valve body nozzle, injection is achieved by controlling the extension and contraction of the cylinder, the clamping of the valve rack and the length of the switching time of the solenoid valve, the main valve body nozzle is controlled to inject material through a double valve body ejector, the working stroke of the valve is controlled, and the injection amount is accurately controlled, thus saving materials and avoiding waste.

Description

Technical Field

[0001] The invention relates to the field of industrial equipment, and in particular to a full-automatic injection device and a control method. Background Art

[0002] The feeding device is generally a mechanism used to add production materials in industrial production operations. It is a relatively common and common equipment. However, the current feeding device may still have some shortcomings, such as the control force is not detailed enough, which has a great impact on the feeding accuracy, and is also prone to cause waste of materials. It may also cause great pollution to the environment, and may not be able to adapt to harsh working environments, bringing difficulties to production work. Summary of the invention

[0003] In order to overcome the defects in the above-mentioned prior art, the present invention provides a fully automatic injection device and control method, which controls the main valve body nozzle to achieve injection by controlling the extension and contraction of the cylinder, the clamping of the valve rack, and the length of the solenoid valve switching time. The main valve body nozzle injects material through a double valve body ejector, controls the working stroke of the valve, and thus accurately controls the amount of injection, saving materials and avoiding waste.

[0004] Technical Solution

[0005] A fully automatic injection device, comprising a feeding device for reciprocating telescopic feeding, a control device for controlling air intake, an injection device and an industrial computer for overall control, wherein a rotating disk is arranged on the right side of the control device, a feeding cup is arranged on the lower side of the rotating disk, the injection device comprises a plurality of main valve body nozzles fixedly connected to the rotating disk and arranged in an annular array, an air intake block and a feed block are fixedly connected to the main valve body nozzle, a feed pipe is fixedly connected to the feed block, the main valve body nozzle comprises a main valve body, a first main valve body lower end cover, a A cylinder sleeve is provided, a piston lower inner sealing ring is arranged between the cylinder sleeve and the lower end cover of the first main valve body, a cylinder upper end cover is arranged on the upper side of the cylinder sleeve, a piston upper outer sealing ring is arranged on the cylinder upper end cover, and a piston upper inner sealing ring is also arranged on the lower end cover of the first main valve body, a piston is slidably connected between the cylinder sleeve, the cylinder upper end cover and the lower end cover of the first main valve body, a piston sealing ring is arranged on the piston, a lower air inlet is arranged in the lower end cover of the first main valve body, an upper air inlet is arranged in the upper end cover of the cylinder, and a movable sleeve is fixedly connected to the upper end of the piston, A small valve ejector pin lock nut is fixedly arranged on the upper side of the movable sleeve, a large valve ejector pin lock nut is abutted against the lower side of the small valve ejector pin lock nut, a large valve ejector pin which penetrates and is slidably connected to the main valve body and the lower end cover of the first main valve body is fixedly connected to the large valve ejector pin lock nut, a large valve ejector pin spring which is located inside the lower end cover of the first main valve body is fixedly connected between the large valve ejector pin and the lower end cover of the first main valve body, a large valve material sealing ring is arranged in the main valve body, a small valve ejector pin which is located inside the large valve ejector pin is fixedly connected to the small valve ejector pin lock nut, a large valve ejector pin which is slidably connected to the large valve ejector pin is fixedly arranged inside the large valve ejector pin A small valve material spring lock nut of the small valve ejector, a small valve ejector spring is fixedly connected between the small valve material spring lock nut and the small valve ejector, a small valve material sealing ring slidably connected to the small valve ejector is also arranged inside the large valve ejector, a small valve sealing gasket is arranged at the bottom inside the large valve ejector, a large valve feed port is arranged on the left side of the main valve body, a small valve feed port is arranged on the lower left side of the large valve ejector, a second main valve body lower end cover is connected to the lower end of the main valve body, a large valve sealing gasket and a large valve discharge port are arranged in the lower end cover of the second main valve body, and a small valve discharge port is arranged at the bottom of the large valve ejector.

[0006] Furthermore, the feeding device includes a fixing part, on which a first cylinder is fixedly arranged, a guide rail slide is fixedly connected to the front side of the first cylinder, a telescopic guide rail is fixedly connected to the guide rail slide, a fixed plate is fixedly connected to the front side of the telescopic guide rail, and a floating joint seat is fixedly connected between the first cylinder and the fixed plate.

[0007] Furthermore, the control device includes an articulated shaft fixedly connected to the fixed plate, a valve frame and an auxiliary frame are hinged on the articulated shaft, the left ends of the valve frame and the auxiliary frame are rotatably connected with a connecting rod, the left ends of the two connecting rods are penetrated by a pin and can rotate, a second cylinder fixedly connected to the fixed plate is fixedly connected to the pin, a solenoid valve is fixedly connected to the right side of the valve frame, and an air inlet fixing plate is fixedly connected to the solenoid valve.

[0008] Furthermore, the air intake block is provided with two air passages which can be adapted to the air intake fixing plate, and the air passages can be connected to the upper air intake and the lower air intake respectively.

[0009] Furthermore, the solenoid valve can control the gas to enter from one of the air passages.

[0010] Furthermore, a proximity switch is also provided on the main valve body nozzle.

[0011] Furthermore, the solenoid valve is a three-position five-way reversing valve.

[0012] Furthermore, the fixing piece is made of aluminum profile and is connected and fixed by a right-angle piece.

[0013] A control method for a fully automatic injection device, the specific steps are as follows:

[0014] (1) The industrial computer first obtains the information on the discharge cup by scanning the code, and then controls the rotation of the transmission disk and drives the main valve body nozzle to move to the working position, which is detected by the proximity switch. After that, the industrial computer sends a signal, and the first cylinder starts to work, and then drives the fixed plate to move with the assistance of the telescopic guide rail through the floating joint seat, thereby realizing the rightward movement of the control device.

[0015] (2) When the control device moves to the work station, the valve rack and the auxiliary rack are contracted by the second cylinder and pull the connecting rod to clamp them. The industrial computer then sends a signal to the solenoid valve to control the opening and closing. Then, the air intake starts in the air inlet fixing plate. The gas passes through the solenoid valve, the valve rack, and the air intake block, and finally reaches the main valve body nozzle to control the discharge of the material. The gravity sensor on the discharge cup promptly feeds back the measured data and transmits it to the industrial computer for comparison, so as to more accurately determine the amount of material to be injected.

[0016] (3) After the transmission disc completes the injection operation once through the main valve body nozzle, it will rotate and complete the injection operation again through the next main valve body nozzle, and the cycle will be repeated.

[0017] Beneficial Effects

[0018] Compared with the prior art, the present invention has the following beneficial effects: the injection is achieved by controlling the extension and contraction of the cylinder, the clamping of the valve rack, and the length of the solenoid valve switching time; the main valve body nozzle is used to inject material through the double valve body ejector pin, which controls the working stroke of the valve, thereby accurately controlling the injection amount, saving materials and avoiding waste; compared with the traditional feeding mechanism, the cylinder control method is adopted, which reduces the pollution to the environment while ensuring the work, and complies with the national green development strategy; the quantitative feeding process can be achieved by using the solenoid valve and the main valve body nozzle, which provides the possibility for accurate and quantitative feeding; it has the characteristics of flexible application, wide output range, automatic pressure maintenance and safe operation, can adapt to various harsh working environments and meet the needs of production. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a full-automatic injection device of the present invention.

[0020] Figure 2 It is a schematic diagram of the structure of the feeding device and the control device.

[0021] Figure 3 yes Figure 2 Schematic diagram of the structure from different angles.

[0022] Figure 4 It is a schematic diagram of the external structure of the main valve body nozzle.

[0023] Figure 5 It is a schematic diagram of the internal structure of the main valve body nozzle.

[0024] Figure 6 It is a control flow chart of the present invention.

[0025] Reference Numbers

[0026] 1 fixing part, 2 first cylinder, 3 fixing plate, 4 guide slide, 5 connecting rod, 6 telescopic guide, 7 floating joint seat, 8 valve frame, 9 auxiliary frame, 10 hinge shaft, 11 solenoid valve, 12 air inlet fixing plate, 13 main valve body nozzle, 14 transmission plate, 15 discharge cup, 16 small valve sealing gasket, 17 small valve ejector, 18 small valve outlet, 19 large valve outlet, 20 large valve sealing gasket, 21 second main valve body lower end cover, 22 large valve ejector, 23 small valve feed port, 24 small valve material sealing ring, 25 large valve feed port, 26 small Valve ejector pin spring, 27 main valve body, 28 first main valve body lower end cover, 29 lower air inlet, 30 large valve ejector pin spring, 31 piston, 32 upper air inlet, 33 cylinder upper end cover, 34 movable sleeve, 35 large valve ejector pin lock nut, 36 small valve ejector pin lock nut, 37 piston upper outer sealing ring, 38 piston upper inner sealing ring, 39 piston sealing ring, 40 cylinder sleeve, 41 piston lower inner sealing ring, 42 large valve material sealing ring, 43 small valve material spring lock nut, 44 second cylinder, 131 air inlet block, 132 feed block, 133 feed pipe. DETAILED DESCRIPTION

[0027] In order to better illustrate the content of the present invention, the following is a detailed description with reference to the accompanying drawings and implementation examples:

[0028] have Figure 1-Figure 6As shown, the present invention discloses a fully automatic injection device, including a feeding device for reciprocating telescopic feeding, a control device for controlling air intake, an injection device and an industrial computer (not shown) for overall control, a rotating disk 14 is arranged on the right side of the control device, a feeding cup 15 is arranged on the lower side of the rotating disk 14, the injection device includes a plurality of main valve body nozzles 13 fixedly connected to the rotating disk 14 and arranged in an annular array, an air intake block 131 and a feed block 132 are fixedly connected to the main valve body nozzle 13, a feed pipe 133 is fixedly connected to the feed block 132, the main valve body nozzle 13 includes a main valve body 27, a first main valve body lower end cover 28, and a first main valve A cylinder sleeve 40 is provided on the lower end cover 28 of the main valve body, and a piston lower inner sealing ring 41 is provided between the cylinder sleeve 40 and the lower end cover 28 of the first main valve body. A cylinder upper end cover 33 is provided on the upper side of the cylinder sleeve 40, and a piston upper outer sealing ring 37 is provided on the cylinder upper end cover 33. A piston upper inner sealing ring 38 is also provided on the lower end cover 28 of the first main valve body. A piston 31 is slidably connected between the cylinder sleeve 40, the cylinder upper end cover 33 and the lower end cover 28 of the first main valve body, and a piston sealing ring 39 is provided on the piston 31. A lower air inlet 29 is provided in the lower end cover 28 of the first main valve body, and an upper air inlet 32 ​​is provided in the upper end cover 33 of the cylinder. The upper end of the piston 31 is fixedly connected There is a movable sleeve 34, a small valve ejector lock nut 36 is fixedly arranged on the upper side of the movable sleeve 34, a large valve ejector lock nut 35 is abutted on the lower side of the small valve ejector lock nut 36, a large valve ejector lock nut 35 is fixedly connected to the large valve ejector lock nut 35, a large valve ejector 22 penetrating and slidably connected to the main valve body 27 and the lower end cover 28 of the first main valve body is fixedly connected to the large valve ejector lock nut 35, a large valve ejector spring 30 located inside the lower end cover 28 of the first main valve body is fixedly connected between the large valve ejector 22 and the lower end cover 28 of the first main valve body, a large valve material sealing ring 42 is arranged in the main valve body 27, a small valve ejector 17 located inside the large valve ejector 22 is fixedly connected to the small valve ejector lock nut 36, a large valve ejector spring 30 located inside the large valve ejector 22 is fixedly arranged in the large valve ejector 22, and a small valve material sealing ring 42 is fixedly arranged in the small valve ejector lock nut 36. A small valve material spring lock nut 43 of the valve ejector pin 17, a small valve ejector spring 26 is fixedly connected between the small valve material spring lock nut 43 and the small valve ejector pin 17, a small valve material sealing ring 24 slidably connected to the small valve ejector pin 17 is also arranged inside the large valve ejector pin 22, a small valve sealing gasket 16 is arranged at the bottom inside the large valve ejector pin 22, a large valve feed port 25 is arranged on the left side of the main valve body 27, a small valve feed port 23 is arranged on the lower left side of the large valve ejector pin 22, the lower end of the main valve body 27 is connected to the second main valve body lower end cover 21, a large valve sealing gasket 20 and a large valve discharge port 19 are arranged in the second main valve body lower end cover 21, and a small valve discharge port 18 is arranged at the bottom of the large valve ejector pin 22.

[0029] Furthermore, the feeding device includes a fixing part 1, on which a first cylinder 2 is fixedly arranged, a guide rail slide 4 is fixedly connected to the front side of the first cylinder 2, a telescopic guide rail 6 is fixedly connected to the guide rail slide 4, a fixed plate 3 is fixedly connected to the front side of the telescopic guide rail 6, and a floating joint seat 7 is fixedly connected between the first cylinder 2 and the fixed plate 3.

[0030] Furthermore, the control device includes an articulated shaft 10 fixedly connected to the fixed plate 3, on which a valve frame 8 and an auxiliary frame 9 are articulated, and the left ends of the valve frame 8 and the auxiliary frame 9 are rotatably connected with connecting rods 5, and the left ends of the two connecting rods 5 are penetrated by a pin (not shown) and can rotate, and the pin is fixedly connected to a second cylinder 44 fixedly connected to the fixed plate 3, and the right side of the valve frame 8 is fixedly connected to a solenoid valve 11, and the solenoid valve 11 is fixedly connected to an air inlet fixed plate 12.

[0031] Furthermore, two air ducts (not shown) that can be adapted to the air inlet fixing plate 12 are provided in the air inlet block 131 , and the air ducts can be connected to the upper air inlet 32 ​​and the lower air inlet 29 respectively.

[0032] Furthermore, the solenoid valve 11 can control the gas to enter from one of the air passages.

[0033] Furthermore, a proximity switch (not shown) is also provided on the main valve body nozzle 13 .

[0034] Furthermore, the solenoid valve 11 is a three-position five-way reversing valve.

[0035] Furthermore, the material of the fixing member 1 is an aluminum profile, and is connected and fixed by a right-angle piece.

[0036] A control method for a fully automatic injection device, the specific steps are as follows:

[0037] (1) The industrial computer first obtains the information on the discharge cup 15 by scanning the code, and then controls the transmission disk 14 to rotate and drive the main valve body nozzle 13 to move to the working position, which is detected by the proximity switch. After that, the industrial computer sends a signal, and the first cylinder 2 starts working, and then drives the fixed plate 3 to move with the assistance of the telescopic guide rail 6 through the floating joint seat 7, thereby realizing the rightward movement of the control device.

[0038] (2) When the control device moves to the working position, the valve frame 8 and the auxiliary frame 9 are contracted by the second cylinder 44 and the connecting rod 5 is pulled to clamp. The industrial computer then sends a signal to the solenoid valve 11 to control the opening and closing. Then, the air starts to enter the air inlet fixing plate 12. The gas passes through the solenoid valve 11, the valve frame 8, and the air intake block 131, and finally reaches the main valve body nozzle 13 and controls the discharge of the material. The gravity sensor on the discharge cup 15 timely feeds back the measured data and transmits it to the industrial computer for comparison, so as to more accurately determine the amount of material to be injected.

[0039] (3) After the transmission disc 14 completes the injection operation through the main valve body nozzle 13, it will rotate and complete the injection operation again through the next main valve body nozzle 13, and the cycle will be repeated.

[0040] Specifically, when injection is required, the first cylinder 2 is started, and then the first cylinder 2 drives the floating joint seat 7 to move, and then the fixed plate 3 moves rightward with the assistance of the telescopic guide rail 6;

[0041] The fixing plate 3 moves rightward and drives the control device to move rightward to the working position as a whole. At this time, the proximity switch receives a signal, and then the industrial computer controls the second cylinder 44 to start, and then the second cylinder 44 contracts and drives the angle of the connecting rod 5 to gradually increase, and then the left ends of the valve frame 8 and the auxiliary frame 9 are stretched apart, so that the right ends of the valve frame 8 and the auxiliary frame 9 are close to each other until they clamp the air intake block 131. At this time, the air intake fixing plate 12 is connected with the air intake block 131;

[0042] Then the solenoid valve 11 controls the gas flow rate according to the actual material discharge needs, thereby completing the material discharge operation.

[0043] When the discharge amount is small, the solenoid valve 11 controls the intake amount to be small, and then the gas entering from the lower air inlet 29 is small, so the internal air pressure of the lower air inlet 29 is small, and then the piston 31 is lifted up to a small extent, so that the movable sleeve 34 only moves up slightly, so that the movable sleeve only lifts the small valve ejector pin lock nut 36, and then the small valve ejector pin 17 moves up slightly, so that the small valve discharge port 18 is opened, and a small amount of discharge is achieved;

[0044] When the discharge amount is large, the solenoid valve 11 controls the internal air pressure of the lower air inlet 29 to be large, so that the movable sleeve 24 moves up to a large extent and lifts up the large valve ejector lock nut 35, and then the large valve ejector 22 moves up and opens the large valve discharge port 19, thereby realizing a large amount of discharge;

[0045] After the discharge is completed, the solenoid valve 11 controls the switching of the airway and allows the gas to enter from the upper air inlet 32, thereby realizing the downward movement of the piston 31;

[0046] After the main valve body nozzle 13 completes one injection, the transmission disc 14 will rotate and complete the injection operation again through the next main valve body nozzle 13, and the cycle repeats.

[0047] By using an industrial computer, a proximity switch and a gravity sensor in coordination, the operation of the first cylinder 2 and the second cylinder 44 and the opening and closing of the solenoid valve 11 as well as the length of the opening and closing time are controlled, thereby accurately controlling the amount of material being discharged, reducing the waste of material being discharged and protecting the working environment of the machine.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the technical solutions of the present invention have been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fully automatic injection device, characterized in that: The invention comprises a feeding device for reciprocating telescopic feeding, a control device for controlling air intake, a material injection device and an industrial computer for overall control, wherein a rotating disk (14) is arranged on the right side of the control device, a material discharge cup (15) is arranged on the lower side of the rotating disk (14), the material injection device comprises a plurality of main valve body nozzles (13) fixedly connected to the rotating disk (14) and arranged in an annular array, an air intake block (131) and a material feed block (132) are fixedly connected to the main valve body nozzle (13), a material feed pipe (133) is fixedly connected to the material feed block (132), the main valve body nozzle (13) comprises a main valve body (27), a first main valve body lower end cover (28), and a first main valve body lower end cover (28) is arranged A cylinder sleeve (40), a piston lower inner sealing ring (41) is arranged between the cylinder sleeve (40) and the first main valve body lower end cover (28), a cylinder upper end cover (33) is arranged on the upper side of the cylinder sleeve (40), a piston upper outer sealing ring (37) is arranged on the cylinder upper end cover (33), and a piston upper inner sealing ring (38) is also arranged on the first main valve body lower end cover (28), a piston (31) is slidably connected between the cylinder sleeve (40), the cylinder upper end cover (33) and the first main valve body lower end cover (28), a piston sealing ring (39) is arranged on the piston (31), a lower air inlet (29) is arranged in the first main valve body lower end cover (28), and a piston upper end cover (33) is arranged in the cylinder upper end cover (33). An upper air inlet (32) is provided, and a movable sleeve (34) is fixedly connected to the upper end of the piston (31), and a small valve ejector needle lock nut (36) is fixedly provided on the upper side of the movable sleeve (34), and a large valve ejector needle lock nut (35) is abutted against the lower side of the small valve ejector needle lock nut (36), and a large valve ejector needle (22) that penetrates and is slidably connected to the main valve body (27) and the lower end cover (28) of the first main valve body is fixedly connected to the large valve ejector needle lock nut (35), and a large valve ejector needle spring (30) located inside the lower end cover (28) of the first main valve body is fixedly connected between the large valve ejector needle (22) and the lower end cover (28) of the first main valve body is fixedly connected, and a large valve material sealing ring (42) is provided in the main valve body (27), and the small valve ejector needle lock nut (36) is abutted against the lower side of the large valve ejector needle lock nut (35). A small valve ejector pin (17) located inside the large valve ejector pin (22) is fixedly connected to the lock nut (36); a small valve material spring lock nut (43) slidably connected to the small valve ejector pin (17) is fixedly arranged inside the large valve ejector pin (22); a small valve ejector pin spring (26) is fixedly connected between the small valve material spring lock nut (43) and the small valve ejector pin (17); a small valve material sealing ring (24) slidably connected to the small valve ejector pin (17) is also arranged inside the large valve ejector pin (22); a small valve sealing pad (16) is arranged at the bottom inside the large valve ejector pin (22); a large valve feed port (25) is arranged on the left side of the main valve body (27); a small valve feed port (23) is arranged on the lower left side of the large valve ejector pin (22);The lower end of the main valve body (27) is connected to a second main valve body lower end cover (21), a large valve sealing gasket (20) and a large valve outlet (19) are arranged inside the second main valve body lower end cover (21), and a small valve outlet (18) is arranged at the bottom of the large valve ejector pin (22).

2. A fully automatic injection device according to claim 1, characterized in that: The feeding device comprises a fixing member (1), a first cylinder (2) is fixedly arranged on the fixing member (1), a guide rail slide (4) is fixedly connected to the front side of the first cylinder (2), a telescopic guide rail (6) is fixedly connected to the guide rail slide (4), a fixing plate (3) is fixedly connected to the front side of the telescopic guide rail (6), and a floating joint seat (7) is fixedly connected between the first cylinder (2) and the fixing plate (3).

3. A fully automatic injection device according to claim 2, characterized in that: The control device comprises an articulated shaft (10) fixedly connected to the fixed plate (3), a valve frame (8) and an auxiliary frame (9) being articulated on the articulated shaft (10), the left ends of the valve frame (8) and the auxiliary frame (9) being rotatably connected to connecting rods (5), the left ends of the two connecting rods (5) being penetrated by a latch and rotatable, the latch being fixedly connected to a second cylinder (44) fixedly connected to the fixed plate (3), the right side of the valve frame (8) being fixedly connected to a solenoid valve (11), the solenoid valve (11) being fixedly connected to an air inlet fixing plate (12).

4. A fully automatic injection device according to claim 3, characterized in that: Two air passages that can be matched with the air inlet fixing plate (12) are arranged in the air inlet block (131), and the air passages can be connected to the upper air inlet (32) and the lower air inlet (29) respectively.

5. A fully automatic injection device according to claim 4, characterized in that: The solenoid valve (11) is capable of controlling the gas to enter from one of the air passages.

6. A fully automatic injection device according to claim 1, characterized in that: The main valve body spray head (13) is also provided with a proximity switch.

7. A fully automatic injection device according to claim 3, characterized in that: The solenoid valve (11) is a three-position five-way reversing valve.

8. A fully automatic injection device according to claim 2, characterized in that: The fixing piece (1) is made of aluminum profile and is connected and fixed via a right-angle piece.

9. A control method for a fully automatic injection device according to any one of claims 3-5 and 7, characterized in that: The following steps are involved: (1) The industrial computer first obtains information on the discharge cup (15) by scanning a code, and then controls the rotating disk (14) to rotate and drive the main valve body nozzle (13) to move to a working position, which is detected by a proximity switch. After that, the industrial computer sends a signal, and the first cylinder (2) starts to work, and then drives the fixed plate (3) to move with the assistance of the telescopic guide rail (6) through the floating joint seat (7), thereby realizing the rightward movement of the control device; (2) When the control device moves to the working position, the valve frame (8) and the auxiliary frame (9) are contracted by the second cylinder (44) and pull the connecting rod (5) to clamp, and the industrial computer then sends a signal to the solenoid valve (11) to control opening and closing, and then the air intake in the air inlet fixing plate (12) begins, and the gas passes through the solenoid valve (11), the valve frame (8), and the air intake block (131), and finally reaches the main valve body nozzle (13) and controls the discharge of the material. The gravity sensor on the discharge cup (15) timely feeds back the measured data and transmits it to the industrial computer for comparison, so as to more accurately determine the amount of material to be injected; (3) After the transmission disc (14) completes one injection operation through the main valve body nozzle (13), it will rotate and complete the injection operation again through the next main valve body nozzle (13), and the cycle will be repeated.

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