A plastic molding machine with quantitative blanking function

Abstract

The present invention relates to the technical field of plastic processing, and specifically discloses a plastic molding machine with a quantitative blanking function, comprising: a processing table; a multi-stage screening component, the multi-stage screening component comprising: a second feed port and a second discharge port; a first storage barrel and a second storage barrel, the first storage barrel and the second storage barrel are both used to selectively cooperate with the second discharge port and the first feed port to quantitatively transport plastic particles discharged from the second discharge port to the first feed port; a measuring component, used to quantitatively measure the weight of the plastic particles transported to the first storage barrel and the second storage barrel. The present invention can transport plastic particles of relatively uniform size to the first feed port through the multi-stage screening component, reducing the blockage of plastic particles at the first feed port. The quantitative unloading of the first and second storage barrels to the first feed port can reduce the pressure on the plastic particles at the first feed port, facilitating the circulation of the plastic particles.

Description

Technical Field

[0001] The invention relates to the technical field of plastic processing, in particular to a plastic molding machine with a quantitative blanking function. Background Art

[0002] In the related art, the injection molding machine is also known as the injection molding machine or injection machine. It is the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastics or thermosetting plastics. In the process of injection molding, the uniformity, purity and feeding speed of the raw material plastic particles will affect the processing of the plastic. The impurities contained in the plastic particles will affect the processing quality of the plastic. In addition, when the size difference between the plastic particles is too large and a large amount of plastic particles are poured into the first feed port, the plastic particles will accumulate at the first feed port under the action of greater pressure. To this end, we propose a plastic molding machine with a quantitative blanking function. Summary of the invention

[0003] The object of the present invention is to provide a plastic molding machine with a quantitative blanking function to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a plastic molding machine with quantitative blanking function, comprising: an injection system, a clamping system, a hydraulic system and an electrical control system, wherein the injection system comprises: a first feed port, comprising: a processing table; a multi-stage screening component, wherein the multi-stage screening component is arranged on the processing table and is used to screen plastic particles, wherein the multi-stage screening component comprises: a second feed port, a first discharge port, a second discharge port and a third discharge port, wherein the second discharge port is used to screen out plastic particles that meet the processing requirements; a first storage barrel, wherein the first storage barrel is used to Selectively cooperate with the second discharge port and the first feed port to quantitatively transport the plastic particles discharged from the second discharge port to the first feed port; a second storage barrel, the second storage barrel is used to selectively cooperate with the second discharge port and the first feed port to quantitatively transport the plastic particles discharged from the second discharge port to the first feed port; a measuring component, the measuring component is arranged on the processing table, and is used to quantitatively measure the weight of the plastic particles transported from the second discharge port to the first storage barrel and the second storage barrel.

[0005] As a further improvement of the present invention, the screening assembly includes: a shell, a vibration motor, a first sieve plate, a second sieve plate and a bottom plate, the first sieve plate and the bottom plate are respectively arranged on the upper and lower sides of the shell, the second sieve plate is arranged between the first sieve plate and the bottom plate, and the second sieve plate is connected to the second discharge port, the diameter of the sieve holes on the first sieve plate is ≥ the diameter of the sieve holes on the second sieve plate, a second feed port is opened on the shell near the first sieve plate, and the vibration motor is connected to the bottom plate.

[0006] As a further improvement of the present invention, the first screen plate, the second screen plate and the bottom plate are all inclined structures, and the heights of the first screen plate, the second screen plate and the bottom plate from the ground on the side close to the second feed port are greater than the heights from the ground on the side away from the second feed port.

[0007] As a further improvement of the present invention, the measuring component includes: a mounting seat, a first conductive plate is arranged on the mounting seat, a first flange is arranged at the opening edge of the first material storage barrel, a first driving ring is arranged at the outer side of the first material storage barrel, a plurality of first elastic members are arranged between the first flange and the first driving ring, a second conductive plate is arranged at the bottom of the first material storage barrel, and the second conductive plate selectively cooperates with the first conductive plate; a second flange is arranged at the opening edge of the second material storage barrel, a second driving ring is arranged at the outer side of the second material storage barrel, a plurality of second elastic members are arranged between the second flange and the second driving ring, and a third conductive plate is arranged at the bottom of the second material storage barrel, and the third conductive plate selectively cooperates with the first conductive plate.

[0008] As a further improvement of the present invention, there are multiple first elastic members, and the multiple first elastic members are distributed at equal angles in the circumferential direction of the first storage barrel; there are multiple second elastic members, and the multiple second elastic members are distributed at equal angles in the circumferential direction of the second storage barrel.

[0009] As a further improvement of the present invention, the plastic molding machine with quantitative blanking function also includes: a turntable, a support frame with an opening facing the turntable is provided on the turntable, a first rotating shaft and a second rotating shaft are respectively passed through two opposite side walls of the support frame for rotation connection, one end of the first rotating shaft is fixedly connected to the first driving ring, one end of the second rotating shaft is fixedly connected to the second driving ring, and the axes of the first rotating shaft and the second rotating shaft are collinearly arranged.

[0010] As a further improvement of the present invention, the plastic molding machine with quantitative blanking function further includes: a first drive motor, which is arranged on the processing table, and the output end of the first drive motor is fixedly connected to the turntable.

[0011] As a further improvement of the present invention, a plurality of guide rods are arranged on the side of the turntable facing the processing table, an annular guide groove is opened on the processing table, and a ball is arranged at the free end of the guide rod, and the ball is arranged in contact with the bottom of the guide groove.

[0012] As a further improvement of the present invention, the plastic molding machine with quantitative blanking function also includes: a second drive motor, the second drive motor is arranged on the top of the support frame, the output end of the second drive motor passes through the support frame and is fixedly connected to the first bevel gear, the other end of the first rotating shaft is provided with a second bevel gear, the other end of the second rotating shaft is provided with a third bevel gear, and the first bevel gear is simultaneously matched with the second bevel gear and the third bevel gear.

[0013] As a further improvement of the present invention, the height of the second discharge port from the ground is greater than the height of the first feed port from the ground, and when the barrel mouth of the first storage barrel is opposite to the second discharge port, the barrel mouth of the second storage barrel is opposite to the first feed port, and when the barrel mouth of the second storage barrel is opposite to the second discharge port, the barrel mouth of the first storage barrel is opposite to the first feed port.

[0014] The present invention has at least the following beneficial effects:

[0015] 1. The present invention can discharge certain impurities through the multi-stage screening assembly, and transport plastic particles of relatively uniform size to the first feed port, which can improve the processing quality of the product and reduce the blockage caused by large plastic particles and impurities at the first feed port to a first extent. Moreover, the quantitative discharge of the first storage barrel and the second storage barrel to the first feed port can reduce the pressure on the plastic particles at the first feed port, thereby reducing the pressure between the plastic particles and the inner wall of the first feed port, which is convenient for the circulation of the plastic particles.

[0016] 2. The weight of the plastic particles in the first storage barrel and the second storage barrel is quantitatively measured by using the descending height of the first storage barrel and the second storage barrel, which is easier and more convenient to use.

[0017] 3. When the first material storage barrel and the second material storage barrel are both in the working position, the openings of the first material storage barrel and the second material storage barrel are arranged in opposite directions, which is more convenient for storing and unloading materials and more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of a three-dimensional structure from a first angle of a plastic molding machine with a quantitative blanking function according to an embodiment of the present invention;

[0019] Figure 2 for Figure 1The enlarged view of point A in the middle;

[0020] Figure 3 It is a schematic diagram of a partial three-dimensional structure from a second angle of a plastic molding machine with a quantitative blanking function according to an embodiment of the present invention;

[0021] Figure 4 It is a schematic diagram of the main structure of a plastic molding machine with a quantitative blanking function according to an embodiment of the present invention;

[0022] Figure 5 for Figure 4 The enlarged view of point B in the middle;

[0023] Figure 6 It is a partial cross-sectional view of a front view of a plastic molding machine with a quantitative blanking function according to an embodiment of the present invention;

[0024] Figure 7 for Figure 6 Enlarged view of point C in the middle;

[0025] Figure 8 A first partial three-dimensional cross-sectional view from a third angle of a plastic molding machine with a quantitative blanking function according to an embodiment of the present invention;

[0026] Fig. 9 A second partial three-dimensional cross-sectional view from a third angle of a plastic molding machine with a quantitative blanking function according to an embodiment of the present invention;

[0027] Fig.10 It is a third partial three-dimensional cross-sectional view at a third angle of a plastic molding machine with a quantitative blanking function according to an embodiment of the present invention.

[0028] In the figure: 1, processing table; 2, multi-stage screening assembly; 21, second feed port; 22, first discharge port; 23, second discharge port; 24, third discharge port; 25, shell; 26, vibration motor; 27, first sieve plate; 28, second sieve plate; 29, bottom plate; 3, first storage barrel; 31, first flange; 4, second storage barrel; 41, second flange; 5, measuring assembly; 51, mounting seat; 52, first conductive plate; 53, first drive ring; 54, first An elastic member; 55, a second conductive plate; 56, a second drive ring; 57, a second elastic member; 58, a third conductive plate; 6, a turntable; 7, a support frame; 8, a first rotating shaft; 9, a second rotating shaft; 10, a first drive motor; 11, a guide rod; 12, a ball bearing; 13, a guide groove; 14, a second drive motor; 15, a first bevel gear; 16, a second bevel gear; 17, a third bevel gear; 18, an injection system; 181, a first feed port; 19, a clamping system.

[0029] Specific implementation method

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1-10 The present invention provides a technical solution: Embodiment 1, a plastic molding machine with quantitative blanking function, comprising: a processing table 1, a multi-stage screening component 2, a first storage barrel 3, a second storage barrel 4 and a measuring component 5. It should be noted that the plastic molding machine also includes existing technical parts, namely an injection system 18, a clamping system 19, a hydraulic system and an electrical control system, wherein a first feed port 181 is provided on the injection system 18. The raw material plastic particles enter the injection system 18 from the first feed port 181, and operations such as melting and injection are performed, and the clamping system 19 is used to press and mold the product, and the hydraulic system and the electrical control system mainly provide power for the injection system 18 and the clamping system 19.

[0032] The processing table 1 mainly plays the role of support and installation, and can provide installation positions for corresponding components. The multi-stage screening component 2 mainly plays the role of screening, which can screen the plastic particles, select plastic particles of uniform size and appropriate size for processing, and can screen impurities mixed in the plastic particles to a certain extent, thereby improving the processing quality of the product.

[0033] The first storage barrel 3 and the second storage barrel 4 are mainly used to receive the plastic particles screened from the multi-stage screening component 2, and transfer the plastic particles from the multi-stage screening component 2 to the injection system 18. The measuring component 5 is mainly used to quantitatively measure the weight of the plastic particles transported from the multi-stage screening component 2 to the first storage barrel 3 and the second storage barrel 4.

[0034] Specifically, the multi-stage screening component 2 is arranged on the processing table 1 and is used to screen the plastic particles. The multi-stage screening component 2 includes: a housing 25, a vibration motor 26, a first screen plate 27, a second screen plate 28 and a bottom plate 29. The housing 25 is also provided with a first discharge port 22, a second discharge port 23 and a third discharge port 24. The first screen plate 27 and the bottom plate 29 are respectively arranged on the upper and lower sides of the housing 25. The second screen plate 28 is arranged between the first screen plate 27 and the bottom plate 29, and the second screen plate 28 is connected to the second discharge port 23. The diameter of the screen hole on the first screen plate 27 is ≥ the diameter of the screen hole on the second screen plate 28. A second feed port 21 is provided on the housing 25 near the first screen plate 27, and the vibration motor 26 is connected to the bottom plate 29.

[0035] The first discharge port 22 corresponds to the first sieve plate 27, that is, the plastic particles and impurities retained on the first sieve plate 27 after being filtered by the first sieve plate 27 can be discharged from the first discharge port 22. Similarly, the second discharge port 23 corresponds to the second sieve plate 28, and the third discharge port 24 corresponds to the bottom plate 29.

[0036] When in use, the vibration motor 26 is started, and the vibration motor 26 drives the bottom plate 29 to vibrate. The vibration of the bottom plate 29 is transmitted through the housing 25, thereby driving the first screen plate 27 and the second screen plate 28 to vibrate, thereby increasing the screening speed. During the screening process, larger plastic particles and impurities will be discharged from the first discharge port 22, and plastic particles suitable for processing will be discharged from the second discharge port 23. Smaller plastic particles will fall onto the bottom plate 29 and be discharged from the third discharge port 24.

[0037] Furthermore, the plastic particles discharged from the second discharge port 23 can be temporarily stored in the first storage barrel 3 or the second storage barrel 4. For example, the plastic particles discharged from the second discharge port 23 are first temporarily stored in the first storage barrel 3. When the plastic particles in the first storage barrel 3 reach a preset appropriate weight, the second discharge port 23 is closed, and the first storage barrel 3 is moved to the first feed port 181, and the plastic particles in the first storage barrel 3 are poured into the first feed port 181. While moving the first storage barrel 3, the second storage barrel 4 can be moved to a position that cooperates with the second discharge port 23, and the second discharge port 23 can be reopened, so that the plastic particles discharged from the second discharge port 23 will enter the second storage barrel 4 again. This cycle can be repeated, and a certain amount of relatively uniform plastic particles can be continuously added to the first feed port 181 without causing too much pressure on the first feed port 181, which is conducive to the plastic particles smoothly entering the injection system 18. The relatively uniform plastic particles are easy to process and can reduce the blockage caused by large plastic particles and impurities at the first feed port 181 to a certain extent.

[0038] It should be noted that the opening and closing of the second discharge port 23 can be controlled by an electromagnetic valve.

[0039] In addition, the measuring component 5 is disposed on the processing table 1 and is used to quantitatively measure the weight of the plastic particles transported from the second discharge port 23 to the first storage barrel 3 and the second storage barrel 4 .

[0040] Specifically, the measuring assembly 5 includes a mounting base 51, to which a first conductive plate 52 is fixedly connected, a first flange 31 is provided at the opening edge of the first material storage barrel 3, a first driving ring 53 is sleeved on the outer side of the first material storage barrel 3, a plurality of first elastic members 54 are fixedly connected between the first flange 31 and the first driving ring 53, a second conductive plate 55 is fixedly connected to the bottom of the first material storage barrel 3, and the second conductive plate 55 selectively electrically cooperates with the first conductive plate 52.

[0041] The first conductive plate 52 and the second conductive plate 55 both play the role of transmitting signals. The first drive ring 53 is sleeved on the outside of the first storage barrel 3, and the first elastic member 54 can be a spring. It should be noted that the plastic molding machine in the present application also includes a controller, which belongs to the prior art and is mainly used to receive, analyze and send signals and control corresponding components.

[0042] During use, when the first storage barrel 3 receives plastic particles from the second discharge port 23, as the weight of the plastic particles in the first storage barrel 3 continues to increase, the spring is stretched, and the first storage barrel 3 begins to move toward the mounting seat 51 until the first conductive plate 52 contacts the second conductive plate 55. At this time, the controller receives a connection signal and sends a closing signal to the solenoid valve, and the solenoid valve closes.

[0043] Similarly, a second flange 41 is provided at the opening edge of the second material storage barrel 4, a second driving ring 56 is sleeved on the outer side of the second material storage barrel 4, a plurality of second elastic members 57 are fixedly connected between the second flange 41 and the second driving ring 56, and a third conductive plate 58 is provided at the bottom of the second material storage barrel 4, and the third conductive plate 58 selectively cooperates electrically with the first conductive plate 52.

[0044] The first conductive plate 52 and the third conductive plate 58 both play a role in transmitting signals. The second drive ring 56 is sleeved on the outside of the second material storage barrel 4, and the second elastic member 57 can be a spring.

[0045] During use, when the second storage barrel 4 receives plastic particles from the second discharge port 23, as the weight of the plastic particles in the second storage barrel 4 continues to increase, the spring is stretched, and the second storage barrel 4 begins to move toward the mounting seat 51 until the first conductive plate 52 contacts the third conductive plate 58. At this time, the controller receives a connection signal and sends a closing signal to the solenoid valve, and the solenoid valve closes.

[0046] In addition, the plastic molding machine with quantitative blanking function also includes a turntable 6. In this embodiment, the turntable 6 is a circular structure. A support frame 7 with an opening facing the turntable 6 is fixedly connected to the turntable 6. The two opposite side walls of the support frame 7 are respectively penetrated by a first rotating shaft 8 and a second rotating shaft 9 for rotational connection. One end of the first rotating shaft 8 is fixedly connected to the first driving ring 53, and one end of the second rotating shaft 9 is fixedly connected to the second driving ring 56. The axes of the first rotating shaft 8 and the second rotating shaft 9 are collinearly arranged. The plastic molding machine with quantitative blanking function also includes a first driving motor 10. The first driving motor 10 is arranged on the processing table 1, and the output end of the first driving motor 10 is fixedly connected to the turntable 6.

[0047] When in use, for example, when the plastic particles in the first storage barrel 3 reach a certain weight, the controller sends a closing signal to the electromagnetic valve and also sends a rotation signal to the first drive motor 10. The rotation of the first drive motor 10 drives the turntable 6 to rotate. The rotation of the turntable 6 drives the first rotating shaft 8 and the second rotating shaft 9 to rotate around the center of the turntable 6 through the transmission of the support frame 7. After rotating 180°, the position between the first storage barrel 3 and the second storage barrel 4 can be swapped. At this time, the electromagnetic valve will reopen and feed into the second storage barrel 4. It should be noted that the second discharge port 23 is located above the first feed port 181. Therefore, the first rotating shaft 8 can be rotated 180° to flip the first storage barrel 3, so that the plastic particles in the first storage barrel 3 can be poured into the first feed port 181.

[0048] In addition, the plastic molding machine with quantitative blanking function also includes a second drive motor 14, the second drive motor 14 is fixedly connected to the top of the support frame 7, the output end of the second drive motor 14 passes through the support frame 7 and is fixedly connected to the first bevel gear 15, the other end of the first rotating shaft 8 is fixedly connected to the second bevel gear 16, the other end of the second rotating shaft 9 is fixedly connected to the third bevel gear 17, and the first bevel gear 15 is simultaneously matched with the second bevel gear 16 and the third bevel gear 17. In addition, when the barrel mouth of the first storage barrel 3 is opposite to the second discharge port 23, the barrel mouth of the second storage barrel 4 is opposite to the first feed port 181, and when the barrel mouth of the second storage barrel 4 is opposite to the second discharge port 23, the barrel mouth of the first storage barrel 3 is opposite to the first feed port 181.

[0049] That is to say, when the first material storage barrel 3 and the second material storage barrel 4 are both in the working position, the openings of the first material storage barrel 3 and the second material storage barrel 4 face opposite directions, which makes it easier to store and unload materials.

[0050] Specifically, for example, when the first drive motor 10 drives the turntable 6 to rotate the first storage barrel 3 filled with quantitative plastic particles to the top of the first feed port 181, the second storage barrel 4 is located below the second discharge port 23, and the opening of the second storage barrel 4 is downward. At this time, the second drive motor 14 is started, and the second drive motor 14 will drive the first bevel gear 15 to rotate. Since the first bevel gear 15 is meshed with the second bevel gear 16 and the third bevel gear 17 at the same time, the second bevel gear 16 and the third bevel gear 17 will rotate in opposite directions, so that the first rotating shaft 8 and the second rotating shaft 9 will rotate in opposite directions. At this time, the first storage barrel 3 can be turned over 180° to discharge to the first feed port 181, and the second storage barrel 4 will turn over 180°, with the opening facing the second discharge port 23, and the electromagnetic valve will be opened, so that the plastic particles at the second discharge port 23 can enter the second storage barrel 4. Such a cycle can achieve continuous feeding to the first feed port 181.

[0051] As an optional embodiment, the first sieve plate 27, the second sieve plate 28 and the bottom plate 29 are all inclined structures, and the height of the first sieve plate 27, the second sieve plate 28 and the bottom plate 29 from the ground close to the second feed port 21 is greater than the height from the ground away from the second feed port 21.

[0052] That is to say, the sides of the first sieve plate 27, the second sieve plate 28 and the bottom plate 29 close to the second feed port 21 are all higher than the side away from the second feed port 21. Since plastic particles and impurities are fed from the second feed port 21 and discharged from the end away from the second feed port 21, this arrangement is more reasonable and convenient for screening and conveying materials on the first sieve plate 27, the second sieve plate 28 and the bottom plate 29.

[0053] As an optional embodiment, the number of the first elastic members 54 is multiple, and the multiple first elastic members 54 are distributed at equal angles in the circumference of the first storage barrel 3. The multiple first elastic members 54 are arranged so that the arrangement of the first elastic members 54 is more comprehensive, and the number and elastic coefficient of the first elastic members 54 can be adjusted according to the actual working conditions, and the use is more flexible. In addition, the multiple first elastic members 54 are distributed at equal angles in the circumference of the first storage barrel 3, so that the arrangement of the first elastic members 54 is more uniform, so that the first storage barrel 3 can move downward under the gravity of the plastic particles more smoothly.

[0054] Similarly, the number of the second elastic members 57 is multiple, and the multiple second elastic members 57 are distributed at equal angles in the circumference of the second storage barrel 4. The multiple second elastic members 57 are provided, so that the second elastic members 57 can be provided more comprehensively, and the number and elastic coefficient of the second elastic members 57 can be adjusted according to the actual working conditions, and the use is more flexible. In addition, the multiple second elastic members 57 are distributed at equal angles in the circumference of the second storage barrel 4, so that the second elastic members 57 can be provided more evenly, so that the second storage barrel 4 can be more stable when it moves downward under the gravity of the plastic particles.

[0055] As an optional embodiment, a plurality of guide rods 11 are provided on the side of the turntable 6 facing the processing table 1, and an annular guide groove 13 is provided on the processing table 1. The free end of the guide rod 11 is provided with a ball 12, and the ball 12 is arranged in contact with the bottom of the guide groove 13. Among them, the guide rod 11 mainly plays a guiding and supporting role, and the guide groove 13 mainly plays a guiding role. The ball 12 mainly plays a role in reducing the friction between the guide rod 11 and the bottom of the slide groove. During the rotation of the turntable 6, the turntable 6 will drive the ball 12 to roll in the guide groove 13 through the guide rod 11, so that the turntable 6 can be supported, so that the rotation of the turntable 6 can be more stable.

[0056] It should be noted that the first material storage barrel and the second material storage barrel are made of plastic material, which is light in weight and low in cost.

[0057] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0058] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plastic molding machine with quantitative blanking function, comprising: An injection system (18), a clamping system (19), a hydraulic system and an electrical control system, wherein the injection system (18) comprises: a first feed port (181), characterized in that: Processing table (1); A multi-stage screening component (2), the multi-stage screening component (2) being arranged on the processing table (1) and used for screening plastic particles, the multi-stage screening component (2) comprising: a second feed port (21), a first discharge port (22), a second discharge port (23) and a third discharge port (24), the second discharge port (23) being used for screening out plastic particles that meet processing requirements; A first material storage barrel (3), the first material storage barrel (3) being used to selectively cooperate with the second material discharge port (23) and the first material feed port (181) so as to quantitatively transport the plastic particles discharged from the second material discharge port (23) to the first material feed port (181); A second material storage barrel (4), the second material storage barrel (4) being used to selectively cooperate with the second material discharge port (23) and the first material feed port (181) so as to quantitatively transport the plastic particles discharged from the second material discharge port (23) to the first material feed port (181); a measuring component (5), the measuring component (5) being arranged on the processing table (1) and being used for quantitatively measuring the weight of the plastic particles transported from the second discharge port (23) to the first storage barrel (3) and the second storage barrel (4); The measuring assembly (5) comprises: a mounting seat (51), a first conductive plate (52) is arranged on the mounting seat (51), a first flange (31) is arranged at the opening edge of the first material storage barrel (3), a first driving ring (53) is arranged on the outer side of the first material storage barrel (3), a plurality of first elastic members (54) are arranged between the first flange (31) and the first driving ring (53), and a second conductive plate (55) is arranged at the bottom of the first material storage barrel (3), and the second conductive plate (55) selectively cooperates with the first conductive plate (52); A second flange (41) is provided at the opening edge of the second material storage barrel (4), a second drive ring (56) is provided on the outer side of the second material storage barrel (4), a plurality of second elastic members (57) are provided between the second flange (41) and the second drive ring (56), and a third conductive plate (58) is provided at the bottom of the second material storage barrel (4), and the third conductive plate (58) selectively cooperates with the first conductive plate (52).

2. A plastic molding machine with quantitative blanking function according to claim 1, characterized in that: The screening component comprises: a shell (25), a vibration motor (26), a first sieve plate (27), a second sieve plate (28) and a bottom plate (29); the first sieve plate (27) and the bottom plate (29) are respectively arranged at the upper and lower sides of the shell (25); the second sieve plate (28) is arranged between the first sieve plate (27) and the bottom plate (29); the second sieve plate (28) is communicated with the second discharge port (23); the diameter of the sieve holes on the first sieve plate (27) is greater than or equal to the diameter of the sieve holes on the second sieve plate (28); a second feed port (21) is provided on the shell (25) near the first sieve plate (27); and the vibration motor (26) is connected to the bottom plate (29).

3. A plastic molding machine with quantitative blanking function according to claim 2, characterized in that: The first sieve plate (27), the second sieve plate (28) and the bottom plate (29) are all inclined structures, and the height of the first sieve plate (27), the second sieve plate (28) and the bottom plate (29) from the ground on the side close to the second feed inlet (21) is greater than the height of the first sieve plate (27), the second sieve plate (28) and the bottom plate (29) from the ground on the side away from the second feed inlet (21).

4. A plastic molding machine with quantitative blanking function according to claim 1, characterized in that: The number of the first elastic members (54) is plural, and the plurality of first elastic members (54) are distributed at equal angles in the circumferential direction of the first material storage barrel (3); The number of the second elastic members (57) is plural, and the plurality of second elastic members (57) are distributed at equal angles in the circumferential direction of the second material storage barrel (4).

5. A plastic molding machine with quantitative blanking function according to claim 1, characterized in that: Also includes: A turntable (6), wherein a support frame (7) is provided on the turntable (6) with an opening facing the turntable (6), and a first rotating shaft (8) and a second rotating shaft (9) are respectively passed through two opposite side walls of the support frame (7) and are rotatably connected, one end of the first rotating shaft (8) is fixedly connected to the first driving ring (53), and one end of the second rotating shaft (9) is fixedly connected to the second driving ring (56), and the axes of the first rotating shaft (8) and the second rotating shaft (9) are arranged colinearly.

6. A plastic molding machine with quantitative blanking function according to claim 5, characterized in that: Also includes: A first drive motor (10), wherein the first drive motor (10) is arranged on the processing table (1), and an output end of the first drive motor (10) is fixedly connected to the rotating disk (6).

7. A plastic molding machine with quantitative blanking function according to claim 5, characterized in that: A plurality of guide rods (11) are arranged on one side of the turntable (6) facing the processing table (1), an annular guide groove (13) is provided on the processing table (1), and a ball (12) is arranged at the free end of the guide rod (11), and the ball (12) is arranged in contact with the bottom of the guide groove (13).

8. The plastic molding machine with quantitative blanking function according to claim 5, characterized in that: Also includes: A second drive motor (14), wherein the second drive motor (14) is arranged at the top of the support frame (7), an output end of the second drive motor (14) passes through the support frame (7) and is fixedly connected to a first bevel gear (15), a second bevel gear (16) is arranged at the other end of the first rotating shaft (8), a third bevel gear (17) is arranged at the other end of the second rotating shaft (9), and the first bevel gear (15) cooperates with the second bevel gear (16) and the third bevel gear (17) at the same time.

9. A plastic molding machine with quantitative blanking function according to claim 1, characterized in that: The height of the second discharge port (23) from the ground is greater than the height of the first feed port (181) from the ground; when the barrel mouth of the first storage barrel (3) is opposite to the second discharge port (23), the barrel mouth of the second storage barrel (4) is opposite to the first feed port (181); and when the barrel mouth of the second storage barrel (4) is opposite to the second discharge port (23), the barrel mouth of the first storage barrel (3) is opposite to the first feed port (181).

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