Apparatus and method for the production of reactive plastics

Abstract

The application discloses a preparation device and method of reactive plastics, and belongs to the technical field of chemical equipment. The device comprises a first dispensing device, a second dispensing device and a mixing device connected with the first dispensing device and the second dispensing device. The first dispensing device comprises a first total dispensing unit for storing a first reactive component; a first sub-dispensing unit connected with the first total dispensing unit and the mixing device; a second sub-dispensing unit connected with the first total dispensing unit and the mixing device, used for receiving the first reactive component and a color paste and forming a first sub-reactive component; and a third sub-dispensing unit connected with the first total dispensing unit and the mixing device, used for receiving the first reactive component and metal powder and forming a second sub-reactive component. Through the device, the reactive plastics with pigments and / or metal powder can be selectively prepared, and the difficulty of dispensing and mixing operations of the reactive plastics is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of chemical equipment, in particular to a device and method for preparing reactive plastic. BACKGROUND

[0002] The reactive plastic, also known as reactive molding plastic, is prepared by mixing and reacting different reactive components (for example, reactive component A and reactive component B). Usually, the reactive components are in the form of a mixture.

[0003] At present, the device for preparing reactive plastic includes a storage device with a stirrer, a conveying device and a mixing device. For example, the reactive component A and the reactive component B are respectively stored in the corresponding storage device and are conveyed to the mixing device for reaction through the corresponding conveying device. In this process, in order to ensure the uniformity of the texture of the reactive component A and the reactive component B, it is necessary to control the conveying temperature and the conveying pressure of each reactive component to be stable, and when the mixing device is in a non-reaction state, the reactive components need to be recycled from the mixing device to the storage device.

[0004] However, the device for preparing reactive plastic has at least the following technical problems: when a new component is added to the reactive component, not only is it necessary to adjust the conveying temperature and / or the conveying pressure, but also the storage device and the conveying device need to be cleaned before the addition, which is complicated. Moreover, the device for preparing reactive plastic is not suitable for preparing reactive plastic with pigments and metal powder. SUMMARY

[0005] The present application provides a device and method for preparing reactive plastic to solve the technical problems in the related art. The technical solutions include the following:

[0006] In a first aspect, the present application provides a device for preparing reactive plastics, the device comprising: a first dispensing device, a second dispensing device, and a mixing device in communication with the first dispensing device and the second dispensing device; the first dispensing device comprising a first total dispensing unit, a first sub-dispensing unit, a second sub-dispensing unit, and a third sub-dispensing unit, the first total dispensing unit being configured to store a first reactive component; wherein the first sub-dispensing unit is in communication with the first total dispensing unit and the mixing device via a plurality of pipes, the first sub-dispensing unit being configured to receive the first reactive component; the second sub-dispensing unit is in communication with the first total dispensing unit and the mixing device via a plurality of pipes, the second sub-dispensing unit being configured to receive the first reactive component and a color paste and form a first sub-reactive component; the third sub-dispensing unit is in communication with the first total dispensing unit and the mixing device via a plurality of pipes, the third sub-dispensing unit being configured to receive the first reactive component and a metal powder and form a second sub-reactive component; the second dispensing device being configured to store a second reactive component.

[0007] In some possible embodiments, the device for preparing reactive plastics further comprises a first delivery control unit, the first delivery control unit comprising a plurality of first valves; the plurality of first valves are respectively arranged on the pipes between the first total dispensing unit and the first sub-dispensing unit, the second sub-dispensing unit, the third sub-dispensing unit, and the pipes between the first sub-dispensing unit, the second sub-dispensing unit, the third sub-dispensing unit, and the mixing device.

[0008] In some possible embodiments, the device for preparing reactive plastics further comprises a second delivery control unit, the second delivery control unit comprising a plurality of second valves; the plurality of second valves are respectively arranged on the pipes between the second dispensing device and the mixing device.

[0009] In some possible embodiments, the mixing device comprises a mixing chamber and a circulation chamber; the mixing device comprises an open state and a closed state, when the mixing device is in the open state, the mixing chamber is configured to perform a mixing operation of the reactive components, when the mixing device is in the closed state, the circulation chamber is configured to perform a back feeding operation of the reactive components; the mixing chamber is in communication with one of the first sub-dispensing unit, the second sub-dispensing unit, the third sub-dispensing unit, and an outlet of the second dispensing device via a plurality of pipes; the circulation chamber is in communication with one of the first sub-dispensing unit, the second sub-dispensing unit, the third sub-dispensing unit, and an inlet of the second dispensing device via a plurality of pipes.

[0010] In some possible embodiments, the mixing device comprises a first mixing unit and a second mixing unit, each of which comprises a housing and a plunger movably arranged in the housing, a first mixing cavity of the first mixing unit is arranged at one axial side of the plunger of the first mixing unit, a second mixing cavity of the second mixing unit is arranged at one axial side of the plunger of the second mixing unit, and the second mixing cavity is communicated to the first mixing cavity for receiving reaction components from the first mixing cavity; the first mixing cavity of the first mixing unit is connected with one of the first sub-dosing unit, the second sub-dosing unit and one outlet of the second dousing device through a plurality of pipelines; the second mixing cavity of the second mixing unit is connected with one outlet of the third sub-dosing unit through a pipeline; the circulation cavity of the first mixing unit comprises a first sub-circulation cavity and a second sub-circulation cavity, the first sub-circulation cavity is connected with one inlet and one outlet of the first sub-dosing unit and the second sub-dosing unit through a plurality of pipelines, and the second sub-circulation cavity is connected with one inlet and one outlet of the second dousing device through a plurality of pipelines.

[0011] In some possible embodiments, for the first mixing unit, the first sub-circulation cavity and the second sub-circulation cavity are arranged on the wall of the plunger of the first mixing unit; and along the movement direction of the plunger, the housing of the first mixing unit is provided with a first pipeline and a second pipeline at intervals, and a fourth pipeline and a fifth pipeline opposite to the first pipeline and the second pipeline respectively, the first pipeline is connected with one inlet of the first sub-dosing unit and the second sub-dosing unit, the second pipeline is connected with one outlet of the first sub-dosing unit and the second sub-dosing unit, the fourth pipeline is connected with one inlet of the second dousing device, and the fifth pipeline is connected with one outlet of the second dousing device; the plunger can reciprocate between a first position and a second position; when the plunger of the first mixing unit is at the first position, the first mixing unit is in a closed state, the first pipeline and the second pipeline are communicated with the first sub-circulation cavity, and the fourth pipeline and the fifth pipeline are communicated with the second sub-circulation cavity; when the plunger of the first mixing unit is at the second position, the first mixing unit is in an open state, the first pipeline is not communicated with the first mixing cavity and the first sub-circulation cavity, the second pipeline is communicated with the first mixing cavity and not communicated with the first sub-circulation cavity, the fourth pipeline is not communicated with the first mixing cavity and the second sub-circulation cavity, and the fifth pipeline is communicated with the first mixing cavity and not communicated with the second sub-circulation cavity.

[0012] In some possible implementation manners, the first mixing unit has a first outlet in communication with the first mixing cavity, and the first outlet further communicates to a second mixing cavity of the second mixing unit; the second mixing unit has a second outlet in communication with the second mixing cavity, and the second outlet communicates to the outside; when the plunger of the first mixing unit moves from the second position to the third position, the reaction components in the first mixing cavity enter the second mixing cavity through the first outlet.

[0013] In some possible implementation manners, for the second mixing unit, a third pipeline is arranged on the shell of the second mixing unit in the movement direction of the plunger, and the third pipeline is connected with one of the outlets of the third sub-dispensing unit; when the plunger in the second mixing unit is in the first position, the second mixing unit is in a closed state, and the third pipeline is not in communication with the second mixing cavity; when the plunger in the second mixing unit moves from the first position to the second position, the second mixing unit is in an open state, and the third pipeline is in communication with the second mixing cavity; when the plunger in the second mixing unit moves from the second position to the third position, the mixed components in the second mixing cavity are discharged through the second outlet.

[0014] In some possible implementation manners, the preparation device includes a first working mode, a second working mode and a third working mode, and further includes a mixing device control unit, which is configured to control the movement of the plunger to realize the opening or closing of the first mixing cavity, the second mixing cavity and the circulation cavity; part of the first valves in the first conveying control unit, the second conveying control unit and the mixing device control unit are matched to control the implementation of the first working mode, which is configured to implement the mixing operation of the first reaction components and the second reaction components in the first mixing cavity or the return operation to the circulation cavity; another part of the first valves in the first conveying control unit, the second conveying control unit and the mixing device control unit are matched to control the implementation of the second working mode, which is configured to implement the mixing operation of the first sub-reaction components and the second reaction components in the first mixing cavity or the return operation to the circulation cavity; and still another part of the first valves in the first conveying control unit and the mixing device control unit are matched to control the implementation of the third working mode, which is configured to implement or interrupt the mixing operation of the second sub-reaction components in the second mixing cavity and the reaction components from the first mixing cavity.

[0015] In the second aspect, the application provides a preparation method of reactive plastics, which adopts the preparation device of reactive plastics in any one of the first aspect of the application.

[0016] The technical scheme provided by the application has at least the following beneficial effects:

[0017] The preparation device provided by the embodiment of the application can selectively make at least one of the first reactive component, the first sub-reactive component, the second sub-reactive component and the second reactive component mix and react in the mixing device, thereby obtaining reactive plastics with different performance requirements. For example, transparent reactive plastics can be prepared according to the mixing reaction of the first reactive component and the second reactive component, or colored reactive plastics can be prepared according to the mixing reaction of the first sub-reactive component and the second reactive component, or reactive plastics with a metallic texture can be prepared according to the mixing reaction of the second sub-reactive component and the second reactive component, or colored reactive plastics with a metallic texture can be prepared according to the mixing reaction of the first sub-reactive component, the second sub-reactive component and the second reactive component. It can be seen that the preparation device of the reactive plastics provided by the embodiment of the application is suitable for the preparation of reactive plastics with pigments and / or metal powder. On this basis, according to the performance requirements of the reactive plastics, color paste, metal powder and the like are selectively added in the first reactive component, the added color paste and metal powder each correspond to one dispensing unit, thereby avoiding the use of the same dispensing unit to add color paste and / or metal powder, so that the dispensing unit and the corresponding pipeline conveying temperature and / or conveying pressure do not need to be re-adjusted when the color paste and / or metal powder is added, and cleaning and other operations of the dispensing unit and the corresponding pipeline are avoided, thereby significantly reducing the difficulty of the batching and mixing operation of the reactive plastics. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0019] Figure 1 is a structural schematic diagram of a preparation device of reactive plastics provided by the embodiment of the application;

[0020] Figure 2 is a structural schematic diagram of another preparation device of reactive plastics provided by the embodiment of the application;

[0021] Figure 3 is a structural schematic diagram of a first mixing unit provided by the embodiment of the application;

[0022] Figure 4 is a structural schematic diagram of a second mixing unit provided by the embodiment of the application;

[0023] Figure 5 is a structural schematic diagram of another reaction plastic preparation device provided by the embodiment of the present application.

[0024] The reference signs in the drawings represent the following respectively:

[0025] 110, first dispensing device;

[0026] 111, first total dispensing unit; 112, first sub-dispensing unit; 113, second sub-dispensing unit; 114, third sub-dispensing unit;

[0027] 120, second dispensing device;

[0028] 130, mixing device; 130a, first mixing unit; 130b, second mixing unit;

[0029] 1301a, first mixing cavity; 1301b, second mixing cavity; 1302, circulating cavity; 1304, shell; 1305, plunger; 1307, first pipeline; 1308, second pipeline; 1309, third pipeline; 1303, fourth pipeline; 1306, fifth pipeline;

[0030] 1302-1, first sub-circulating cavity; 1302-2, second sub-circulating cavity;

[0031] 140, first conveying control unit; 150, second conveying control unit; 141, first valve; 151, second valve;

[0032] 1401, first sub-valve; 1402, second sub-valve; 1403, third sub-valve; 1404, fourth sub-valve; 1405, fifth sub-valve; 1406, sixth sub-valve;

[0033] 1601, first conveying pipeline; 1602, second conveying pipeline; 1603, third conveying pipeline; 1604, fourth conveying pipeline; 1605, fifth conveying pipeline; 1606, sixth conveying pipeline. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0035] The exemplary embodiments will be described in detail herein with reference to the attached drawings. The following description is made with reference to the accompanying drawings in which like reference numerals refer to like elements throughout the several figures. The following description of exemplary embodiments is not representative of all possible embodiments consistent with the present application. Rather, it is merely an example of apparatus and methods consistent with some aspects of the present application as detailed in the appended claims.

[0036] Figure 1 is a structural schematic diagram of a reactive plastic preparation device provided by an embodiment of the present application. Referring to Figure 1 , the reactive plastic preparation device provided by the embodiment of the present application may, for example, include a first dispensing device 110, a second dispensing device 120, and a mixing device 130 in communication with the first dispensing device 110 and the second dispensing device 120.

[0037] The first dispensing device 110 may, for example, include a first total dispensing unit 111, a first sub-dispensing unit 112, a second sub-dispensing unit 113, and a third sub-dispensing unit 114. The first sub-dispensing unit 112 may, for example, be in communication with the first total dispensing unit 111 and the mixing device 130 via a pipeline; the second sub-dispensing unit 113 may, for example, be in communication with the first total dispensing unit 111 and the mixing device 130 via a pipeline; and the third sub-dispensing unit 114 may, for example, be in communication with the first total dispensing unit 111 and the mixing device 130 via a pipeline.

[0038] The first total dispensing unit 111 may, for example, be used to store a first reactive component; the first sub-dispensing unit 112 may, for example, be used to receive the first reactive component in the first total dispensing unit 111; the second sub-dispensing unit 113 may, for example, be used to receive the first reactive component and a color paste in the first total dispensing unit 111 and form a first sub-reactive component; and the third sub-dispensing unit 114 may, for example, be used to receive the first reactive component and a metal powder in the first total dispensing unit 111 and form a second sub-reactive component. The second dispensing device 120 may, for example, be used to store a second reactive component.

[0039] In some embodiments, the first total dispensing unit 111 delivers the first reactive component into the first sub-dispensing unit 112, which enters the mixing device 130 to be mixed. The first total dispensing unit 111 delivers the first reactive component (which is substantially the same as the first reactive component in the first sub-dispensing unit, only the delivery path is different) into the second sub-dispensing unit 113, which can also receive the color paste at the same time, and finally the first reactive component and the color paste form the first sub-reactive component and are delivered by the second sub-dispensing unit 113 to the mixing device 130. The first total dispensing unit 111 delivers the first reactive component into the third sub-dispensing unit 114, which can also receive the metal powder at the same time, and finally the first reactive component and the metal powder form the second sub-reactive component and are delivered by the third sub-dispensing unit 114 to the mixing device 130. The second dispensing device 120 is used solely to store and deliver the second reactive component to the mixing device 130.

[0040] The above preparation device provided by the embodiments of the present application can selectively cause at least one of the first reactive component, the first sub-reactive component, and the second sub-reactive component to mix and react with the second reactive component in the mixing device 130, thereby obtaining reactive plastics with different performance requirements. For example, transparent reactive plastics can be prepared according to the mixing and reaction of the first reactive component and the second reactive component, or colored reactive plastics can be prepared according to the mixing and reaction of the first sub-reactive component and the second reactive component, or reactive plastics with a metallic texture can be prepared according to the mixing and reaction of the second sub-reactive component and the second reactive component. It can be seen that the preparation device of the reactive plastics provided by the embodiments of the present application is suitable for the preparation of reactive plastics with pigments and / or metal powder, and on this basis, according to the performance requirements of the reactive plastics, color paste, metal powder, etc. are selectively added in the first reactive component, the added color paste and metal powder each correspond to a dispensing unit, which avoids using the same dispensing unit to add color paste and / or metal powder, thereby realizing that the delivery temperature and / or delivery pressure of the dispensing unit and the corresponding pipeline do not need to be re-adjusted when the color paste and / or metal powder is added, and at the same time, cleaning and other operations of the dispensing unit and the corresponding pipeline are avoided, which significantly reduces the difficulty of the batching and mixing operation of the reactive plastics.

[0041] In some embodiments, the first reactive component may, for example, be a polyol mixed system including a catalyst, a chain extender, and a polyol. In some embodiments, the polyol may, for example, be a polyester polyol, a polyether polyol, etc., which is not limited in the present application in this regard.

[0042] In some embodiments, the color paste may, for example, be a fluid or liquid mixed from the first reactive component and the pigment. In some embodiments, the pigment may, for example, be one or more of iron oxide, phthalocyanine green, pearl white, fluorescent green, without limitation in this aspect.

[0043] In some embodiments, the metal powder may, for example, be aluminum powder, copper powder, gold powder, etc.; the size of the metal powder may, for example, be 20-60 μm, for example, 20 μm, 25 μm, 30 μm, 35 μm, 40 μm, etc., without limitation in this aspect.

[0044] In some embodiments, the second reactive component may, for example, include isocyanate, and further may include one or more of monoisocyanate, diisocyanate and polyisocyanate.

[0045] In some embodiments, heating devices and / or stirring devices are respectively arranged in the first total dispensing unit 111, the first sub-dispensing unit 112, the second sub-dispensing unit 113, the third sub-dispensing unit 114 and the second dispensing device 120, to control the first reactive component in the first total dispensing unit 111, the first reactive component in the first sub-dispensing unit 112, the first sub-reactive component in the second sub-dispensing unit 113, the second sub-reactive component in the third sub-dispensing unit 114 and the second reactive component in the second dispensing device 120 at different temperatures and different stirring temperatures.

[0046] In some embodiments, the first sub-dosing unit 112 can be connected to the second sub-dosing unit 113 through a pipe, and the first delivery control unit 140 can further include a plurality of first valves 141 arranged on the pipe between the first sub-dosing unit 112 and the second sub-dosing unit 113. In this way, the first delivery control unit 140 can be used to selectively deliver the first reactive component in the first sub-dosing unit 112 to the second sub-dosing unit 113 after the first sub-reactive component is used, so as to clean the preparation device of the reactive plastic by the first reactive component in the first sub-dosing unit 112, thereby avoiding contamination of the first total-dosing unit 111.

[0047] In some embodiments, the first sub-dosing unit 112 can be connected to the second sub-dosing unit 113 through a pipe, and the first delivery control unit 140 can further include a plurality of first valves 141 arranged on the pipe between the first sub-dosing unit 112 and the second sub-dosing unit 113. In this way, the first delivery control unit 140 can be used to selectively deliver the first reactive component in the first sub-dosing unit 112 to the second sub-dosing unit 113 after the first sub-reactive component is used, so as to clean the preparation device of the reactive plastic by the first reactive component in the first sub-dosing unit 112, thereby avoiding contamination of the first total-dosing unit 111.

[0048] In some embodiments, the first sub-dosing unit 112 can be connected to the second sub-dosing unit 113 through a pipe, and the first delivery control unit 140 can further include a plurality of first valves 141 arranged on the pipe between the first sub-dosing unit 112 and the second sub-dosing unit 113. In this way, the first delivery control unit 140 can be used to selectively deliver the first reactive component in the first sub-dosing unit 112 to the second sub-dosing unit 113 after the first sub-reactive component is used, so as to clean the preparation device of the reactive plastic by the first reactive component in the first sub-dosing unit 112, thereby avoiding contamination of the first total-dosing unit 111.

[0049] In addition, when the mixing reaction of the reactive components in the mixing device 130 is temporarily stopped, the reactive components temporarily retained in the pipeline can change in viscosity due to changes in temperature, stirring, and other factors, and can solidify in the pipeline or be difficult to flow. In view of this, a reflux path can be provided for the reactive components temporarily retained in the pipeline, so that the reactive components temporarily retained in the pipeline can be refluxed into the corresponding storage device or unit to maintain suitable flowability. In some embodiments, the mixing device 130 can include a mixing chamber 1301 and a circulating chamber 1302, for example. The mixing device 130 can include an open state and a closed state. When the mixing device 130 is in the open state, the mixing chamber 1301 can start the mixing operation of the reactive components. When the mixing device 130 is in the closed state, the circulating chamber 1302 can start the reflux operation of the reactive components. The mixing chamber 1301 can be connected to one of the first sub-dosing unit 112, the second sub-dosing unit 113, the third sub-dosing unit 114, and an outlet of the second dousing device 120 through a plurality of pipelines. The circulating chamber 1302 can be connected to one of the first sub-dosing unit 112, the second sub-dosing unit 113, the third sub-dosing unit 114, and an inlet of the second dousing device 120 through a plurality of pipelines.

[0050] Figure 2 FIG. 1 is a structural schematic diagram of another reactive plastic preparation device provided by an embodiment of the present application. It should be noted that, Figure 2 The reactive plastic preparation device shown in FIG. 1 can be Figure 1 Another embodiment of the reactive plastic preparation device shown in FIG. 1 is not described here. See FIG. 2 for details. Figure 2 Another reactive plastic preparation device provided by an embodiment of the present application can include a first dousing device 110, a second dousing device 120, and a mixing device 130, for example. The first dousing device 110 can include a first total dousing unit 111, a first sub-dosing unit 112, a second sub-dosing unit 113, and a third sub-dosing unit 114, for example. The mixing device 130 can include a first mixing unit 130a and a second mixing unit 130b, for example. The first mixing unit 130a can include a circulating chamber 1302 and a first mixing chamber 1301a, for example.

[0051] In consideration of the fact that the second sub-reactive component mixed with the metal powder can cause abrasion to the reactive plastic preparation device or cause the position corresponding to the back feeding operation in the reactive plastic preparation device to be blocked during the back feeding operation, the mixing operation of the second sub-reactive component can be separated and the second sub-reactive component is not subjected to the back feeding operation. In some embodiments, the mixing device 130 can include a first mixing unit 130a and a second mixing unit 130b. The first mixing unit 130a can be used to receive the reactive component not containing the metal powder and start the mixing operation of the reactive component not containing the metal powder in the first mixing cavity 1301a or the back feeding operation to the circulation cavity 1302, and the second mixing unit 130b can be used to receive the reactive component containing the metal powder and start the mixing operation of the reactive component containing the metal powder in the second mixing cavity 1301b.

[0052] In some embodiments, the first mixing unit 130a and the second mixing unit 130b each include a housing 1304 and a plunger 1305 movably arranged in the housing 1304. The first mixing cavity 1301a of the first mixing unit 130a can be disposed on the axial side of the plunger 1305 of the first mixing unit 130a, the second mixing cavity 1301b of the second mixing unit 130b can be disposed on the axial side of the plunger 1305 of the second mixing unit 130b, and the second mixing cavity 1301b can be communicated to the first mixing cavity 1301a for receiving the reactive component from the first mixing cavity 1301a (the reactive component from the first mixing cavity 1301a can be a single reactive component or a mixture of different reactive components).

[0053] In some embodiments, the first mixing cavity 1301a of the first mixing unit 130a can be communicated to one of the first sub-dosing unit 112, the second sub-dosing unit 113 and the outlet of the second dousing device 120 through a plurality of pipelines, so that the first reactive component in the first sub-dosing unit 112, the first sub-reactive component in the second sub-dosing unit 113 and the second reactive component in the second dousing device 120 can enter the first mixing cavity 1301a through the corresponding pipelines for mixing reaction when needed.

[0054] Considering that solidification may occur when the first reactive component / first sub-reactive component is mixed with the second reactive component, the first reactive component / first sub-reactive component and the second reactive component can be prevented from meeting before entering the first mixing chamber 1301a of the first mixing unit 130a. In some embodiments, the circulation chamber 1302 of the first mixing unit 130a may include a first sub-circulation chamber 1302-1 and a second sub-circulation chamber 1302-2. The first sub-circulation chamber 1302-1 can be connected to one of the inlets of the first sub-dispensing unit 112 and the second sub-dispensing unit 113 through multiple pipelines, so that the first reactive component temporarily retained in the pipeline can be returned to the first sub-dispensing unit 112 through the first sub-circulation chamber 1302-1 and the corresponding pipeline, or the first sub-reactive component temporarily retained in the pipeline can be returned to the second sub-dispensing unit 113 through the first sub-circulation chamber 1302-1 and the corresponding pipeline. The second sub-circulation chamber 1302-2 can be connected to one of the inlets and outlets of the second dispensing device 120 through multiple pipelines, so that the second reactive component temporarily retained in the pipeline can be returned to the second dispensing device 120 through the second sub-circulation chamber 1302-2 and the corresponding pipelines.

[0055] In some embodiments, the second mixing chamber 1301b of the second mixing unit 130b can be connected to one of the outlets of the third sub-dispensing unit 114 through a pipeline, so that the second sub-reactive component in the third sub-dispensing unit can enter the second mixing chamber 1301b through the corresponding pipeline for mixing reaction.

[0056] Furthermore, considering that in the preparation process of reactive plastics, the first reactive component and the first sub-reactive component of the mixed colored slurry are usually not used simultaneously, in order to save pipelines and optimize the pipeline layout, a portion of the shared pipeline can be set between the first sub-dispensing unit 112 and the mixing device 130, and between the second sub-dispensing unit 113 and the mixing device 130, so that at the same time, one of the first reactive component in the first sub-dispensing unit 112 and the first sub-reactive component in the second sub-dispensing unit 113 can enter the mixing device 130.

[0057] In some embodiments, the first mixing chamber 1301a and the second mixing chamber 1301b can be connected by a pipeline so that the reactive component or mixture of reactive components in the first mixing chamber 1301a can enter the second mixing chamber 1301b and mix and react with the second sub-reactive component.

[0058] In some embodiments, the plunger 1305 of the first mixing unit 130a and the second mixing unit 130b is capable of reciprocating between a first position and a second position, so that the first mixing unit 130a and the second mixing unit 130b are in a closed state or an open state. Figure 3 FIG. 1 is a structural schematic diagram of a first mixing unit 130a provided by an embodiment of the present application. Figure 4 FIG. 2 is a structural schematic diagram of a second mixing unit 130b provided by an embodiment of the present application. Figure 3 and Figure 4 FIG. 3 illustrates a schematic diagram of the plunger moving from the first position to the second position, and the following will be described in combination with Figure 3 and Figure 4 The structure of the first mixing unit 130a and the second mixing unit 130b provided by an embodiment of the present application will be described respectively.

[0059] Referring to Figure 3 , the first mixing unit 130a provided by an embodiment of the present application may, for example, include a first mixing cavity 1301a, a circulation cavity 1302, a shell 1304, a plunger 1305, a first pipeline 1307, a second pipeline 1308, a fourth pipeline 1303 and a fifth pipeline 1306.

[0060] For the first mixing unit 130a, the first mixing cavity 1301a can be arranged at an axial side of the plunger 1305, and a first sub-circulation cavity 1302-1 and a second sub-circulation cavity 1302-2 can be arranged on a wall of the plunger 1305 of the first mixing unit 130a. Along the movement direction of the plunger 1305, the shell 1304 of the first mixing unit 130a is provided with the first pipeline 1307 and the second pipeline 1308 at intervals, and the fourth pipeline 1303 and the fifth pipeline 1306 opposite to the first pipeline 1307 and the second pipeline 1308 respectively. The first pipeline 1307 is connected with one of the inlets of the first sub-dosing unit 112 and the second sub-dosing unit 113; the second pipeline 1308 is connected with one of the outlets of the first sub-dosing unit 112 and the second sub-dosing unit 113. The fourth pipeline 1303 is connected with one of the inlets of the second dousing device 120, and the fifth pipeline 1306 is connected with one of the outlets of the second dousing device 120.

[0061] In some embodiments, the plunger 1305 is capable of reciprocating between the first position and the second position, so that the first mixing unit 130a is in the closed state or the open state.

[0062] In some embodiments, the plunger 1305 in the first mixing unit 130a is in the first position (as shown in FIG. 1) or the second position (as shown in FIG. 2). Figure 3When the first mixing unit 130a is in the closed state as shown in the leftmost drawing of FIG. 13, the first conduit 1307 and the second conduit 1308 are in communication with the first sub-circulation cavity 1302-1, and the fourth conduit 1303 and the fifth conduit 1306 are in communication with the second sub-circulation cavity 1302-2, so that the reactive components temporarily remaining in the conduits can be returned to the corresponding storage devices or units.

[0063] In some embodiments, the plunger 1305 in the first mixing unit 130a can be moved to a second position (as shown in the middle drawing of FIG. 13), and the first mixing unit 130a is in the open state. In this state, the first conduit 1307 is not in communication with either the first mixing cavity 1301a or the first sub-circulation cavity 1302-1, the second conduit 1308 is in communication with the first mixing cavity 1301a but not in communication with the first sub-circulation cavity 1302-1, the fourth conduit 1303 is not in communication with either the first mixing cavity 1301a or the second sub-circulation cavity 1302-2, and the fifth conduit 1306 is in communication with the first mixing cavity 1301a but not in communication with the second sub-circulation cavity 1302-2, so that the first reactive component, the first sub-reactive component, and the second reactive component can enter the first mixing cavity 1301a for mixing. Figure 3 In some embodiments, the plunger 1305 in the first mixing unit 130a can also be moved to a third position, and the first mixing unit 130a has a first outlet in communication with the first mixing cavity 1301a. When the plunger 1305 in the first mixing unit 130a is in the third position (as shown in the rightmost drawing of FIG. 13), the reactive components in the first mixing cavity 1301a can be discharged through the first outlet.

[0064] Figure 3 In some embodiments, the first mixing unit 130a has a first outlet in communication with the first mixing cavity 1301a, and the first outlet is also in communication with a second mixing cavity 1301b of a second mixing unit 130b. The second mixing unit 130b has a second outlet in communication with the second mixing cavity 1301b, and the second outlet is in communication with the outside. The plunger 1305 of the first mixing unit 130a can be moved from the second position to the third position. When the plunger 1305 of the first mixing unit 130a is in the third position, the reactive components in the first mixing cavity 1301a can enter the second mixing cavity 1301b through the first outlet.

[0065] The second mixing unit 130b can have the same structure as the first mixing unit 130a, and the circulation cavity of the second mixing unit 130b is in a blocked state, i.e., not in communication with any dispensing unit. Alternatively, the second mixing unit 130b can also be designed without a circulation cavity.

[0066] The second mixing unit 130b can have the same structure as the first mixing unit 130a, and the circulation cavity of the second mixing unit 130b is in a blocked state, i.e., not in communication with any dispensing unit. Alternatively, the second mixing unit 130b can also be designed without a circulation cavity.

[0067] Referring to FIG. 14, the first mixing unit 130a and the second mixing unit 130b can be connected in series. Figure 4 ​The second mixing unit 130b provided by the embodiments of the present application may, for example, include a second mixing cavity 1301b, a shell 1304, a plunger 1305, and a third pipeline 1309.

[0068] In some embodiments, the second mixing cavity 1301b is arranged at an axial side of the plunger 1305 of the second mixing unit 130b. The shell 1304 of the second mixing unit 130b is provided with the third pipeline 1309 along the movement direction of the plunger 1305. The third pipeline 1309 is connected to one of the outlets of the third sub-dosing unit 114.

[0069] In some embodiments, the plunger 1305 in the second mixing unit 130b is capable of reciprocating between a first position and a second position, so that the second mixing unit 130b is in a closed state or an open state.

[0070] In some embodiments, when the plunger 1305 in the second mixing unit 130b is at the first position (as shown in the leftmost diagram in FIG. 13), the second mixing unit 130b is in the closed state, and the third pipeline 1309 is not in communication with the second mixing cavity 1301b, so as to prevent the second sub-reactive component from entering the second mixing cavity 1301b. Figure 4 In some embodiments, when the plunger 1305 in the second mixing unit 130b is at the second position (as shown in the middle diagram in FIG. 13), the second mixing unit 130b is in the open state, and the third pipeline 1309 is in communication with the second mixing cavity 1301b, so that the second sub-reactive component can enter the second mixing cavity 1301b for mixing operation.

[0071] Figure 4 In some embodiments, the plunger 1305 can also move to a third position, and the second mixing unit 130b has a second outlet in communication with the second mixing cavity 1301b, and the second outlet is communicated to the outside. When the plunger 1305 in the second mixing unit 130b is at the third position (as shown in the rightmost diagram in FIG. 13), the mixed components in the second mixing cavity 1301b can be discharged to the outside from the second outlet, and the reactive plastic preparation device can be in the closed state, so as to discharge the reactive components in the mixing device 130 as a whole, and facilitate transportation and cleaning operations after disassembly.

[0072] In some embodiments, the plunger 1305 can also move to a third position, and the second mixing unit 130b has a second outlet in communication with the second mixing cavity 1301b, and the second outlet is communicated to the outside. When the plunger 1305 in the second mixing unit 130b is at the third position (as shown in the rightmost diagram in FIG. 13), the mixed components in the second mixing cavity 1301b can be discharged to the outside from the second outlet, and the reactive plastic preparation device can be in the closed state, so as to discharge the reactive components in the mixing device 130 as a whole, and facilitate transportation and cleaning operations after disassembly. Figure 4

[0073] ​​In some embodiments, the first mixing unit 130a has a first outlet in communication with the first mixing chamber 1301a, the first outlet further communicates to a second mixing chamber 1301b of a second mixing unit 130b, the second mixing unit 130b has a second outlet in communication with the second mixing chamber 1301b, the second outlet communicates to the outside. When the plunger 1305 of the second mixing unit 130b is in the first position and the second position, the reactive components in the first mixing chamber 1301a can enter the second mixing chamber 1301b. In some embodiments, the reactive plastic preparation device may, for example, include a first working mode, a second working mode, a third working mode for implementing mixing reactions according to different reactive components. Among them, the first working mode can be used to implement mixing operation of the first reactive component and the second reactive component in the first mixing chamber 1301a or the back feeding operation to the circulation chamber 1302; the second working mode can be used to implement mixing operation of the first sub-reactive component and the second reactive component in the first mixing chamber 1301a or the back feeding operation to the circulation chamber 1302; the third working mode can be used to implement or interrupt mixing operation of the reactive component or the mixture of the reactive components in the second mixing chamber 1301b and the second sub-reactive component. Among them, in the back feeding operation to the circulation chamber 1302, the first reactive component and the first sub-reactive component are respectively back fed to the first sub-dosing unit 112 and the second sub-dosing unit 113 through the first sub-circulation chamber 1302-1 and the corresponding pipeline, and the second reactive component is back fed to the second dosing device 120 through the second sub-circulation chamber 1302-2 and the corresponding pipeline.

[0074] In some embodiments, the reactive plastic preparation device may, for example, include a mixing device control unit for controlling the movement of the plunger 1305 to realize the opening or closing of the first mixing chamber 1301a, the second mixing chamber 1301b and the circulation chamber 1302. The mixing device control unit can cooperate with the first conveying control unit 140 and the second conveying control unit 150 to control different working modes of the reactive plastic preparation device.

[0075] In some embodiments, the first valve 141 in the first delivery control unit 140, the second delivery control unit 150, and the mixing device control unit cooperate to control the implementation of the first operation mode to implement the mixing operation of the first reactive component and the second reactive component in the first mixing chamber 1301a or the back-feeding operation to the circulation chamber 1302. Another part of the first valve 141 in the first delivery control unit 140, the second delivery control unit 150, and the mixing device 130 control unit cooperate to control the implementation of the second operation mode to implement the mixing operation of the first sub-reactive component and the second reactive component in the first mixing chamber 1301a or the back-feeding operation to the circulation chamber 1302. Yet another part of the first valve 141 in the first delivery control unit 140 and the mixing device control unit cooperate to control the implementation of the third operation mode to implement or interrupt the mixing operation of the reactive component and the second sub-reactive component in the second mixing chamber 1301b.

[0076] Figure 5 is another structure diagram of the reactive plastic preparation device provided by the embodiments of the present application. It should be noted that, Figure 5 The reactive plastic preparation device shown in Figure 1 or Figure 2 An embodiment of the reactive plastic preparation device shown in

[0077] In some embodiments, the first valve 141 in the first delivery control unit 140, for example, can include a first sub-valve 1401, a second sub-valve 1402, a third sub-valve 1403, a fourth sub-valve 1404, a fifth sub-valve 1405, and a sixth sub-valve 1406.

[0078] In some embodiments, the cooperation of a part of the first valve 141 in the first delivery control unit 140, the second delivery control unit 150 and the mixing device control unit implements control on the first working mode of the preparation device of the reactive plastic, which can include: when the mixing operation of the first reactive component and the second reactive component in the first mixing cavity 1301a is implemented, the first mixing unit 130a can be in an open state, the first sub-valve 1401 is opened, the third sub-valve 1403 is closed, the first reactive component can sequentially pass through the first delivery pipeline 1601 and the second delivery pipeline 1602 into the first mixing cavity 1301a of the first mixing unit 130a, and is mixed with the second reactive component entering the first mixing cavity 1301a. When the back feeding operation of the first reactive component and the second reactive component to the circulation cavity 1302 is implemented, the first mixing unit 130a can be in a closed state, the third sub-valve 1403 and the fourth sub-valve 1404 are closed, the first sub-valve 1401, the second sub-valve 1402 and the fifth sub-valve 1405 are opened, the first reactive component can be circulated between the first sub-feeding unit 112 and the first sub-circulation cavity 1302-1 of the first mixing unit 130a through the first delivery pipeline 1601, the second delivery pipeline 1602, the first sub-circulation cavity 1302-1 of the first mixing unit 130a, the third delivery pipeline 1603 and the fourth delivery pipeline 1604; the second reactive component is circulated between the second feeding device 120 and the second sub-circulation cavity 1302-2 of the first mixing unit 130a through the second sub-circulation cavity 1302-2 of the first mixing unit 130a and the corresponding pipeline.

[0079] In some embodiments, the cooperation of the other part of the first valve 141 in the first delivery control unit 140, the second delivery control unit 150, and the mixing device control unit implements control on the second working mode of the reactive plastic preparation device, which may, for example, include: when the mixing operation of the first sub-reactive component and the second reactive component in the first mixing cavity 1301a is implemented, the first mixing unit 130a can be in an open state, the first sub-valve 1401 is closed, the third sub-valve 1403 is opened, and the first sub-reactive component can sequentially pass through the fifth delivery pipeline 1605 and the second delivery pipeline 1602 to enter the first mixing cavity 1301a of the first mixing unit 130a and mix with the second reactive component entering the first mixing cavity 1301a. When the back feeding operation of the first sub-reactive component and the second reactive component to the circulation cavity 1302 is implemented, the first mixing unit 130a can be in a closed state, the first sub-valve 1401 and the second sub-valve 1402 are closed, and the third sub-valve 1403, the fourth sub-valve 1404, and the fifth sub-valve 1405 are opened. The first sub-reactive component can be circulated between the second sub-feeding unit 113 and the first sub-circulation cavity 1302-1 of the first mixing unit 130a through the fifth delivery pipeline 1605, the second delivery pipeline 1602, the first sub-circulation cavity 1302-1 of the first mixing unit 130a, the third delivery pipeline 1603, and the sixth delivery pipeline 1606; and the second reactive component is circulated between the second feeding device 120 and the second sub-circulation cavity 1302-2 of the first mixing unit 130a through the second sub-circulation cavity 1302-2 of the first mixing unit 130a and the corresponding pipelines.

[0080] In some embodiments, the cooperation of the other part of the first valve 141 in the first delivery control unit 140 and the mixing device control unit implements control on the third working mode of the reactive plastic preparation device, which may, for example, include: when the mixing operation of the second reactive component or the mixture of reactive components in the second mixing cavity 1301b of the second mixing unit 130b is implemented, the second mixing unit 130b can be in an open state, the sixth sub-valve 1406 is opened, and the second sub-reactive component can enter the second mixing cavity 1301b of the second mixing unit 130b through the corresponding pipelines and mix with the reactive component or the mixture of reactive components in the second mixing cavity 1301b. When the mixing operation of the second reactive component or the mixture of reactive components in the second mixing cavity 1301b of the second mixing unit 130b is interrupted, the second mixing unit 130b can be in a closed state, the sixth sub-valve 1406 is closed, and the second sub-reactive component is prevented from entering the second mixing cavity 1301b of the second mixing unit 130b.

[0081] In some embodiments, the reactive plastic preparation device further comprises a fifth working mode, which can be used to perform a cleaning operation on the second sub-dosing unit 113. The first conveying control unit and the mixing device control unit can be used to control the implementation of the fifth working mode to clean the second sub-dosing unit 113.

[0082] In some embodiments, the control of the implementation of the fifth working mode by the first conveying control unit and the mixing device control unit can include, for example: controlling the first mixing unit 130a to be in an open state, the first sub-valve 1401 and the fifth sub-valve 1405 to be closed, the first reactive component in the first sub-dosing unit 112 to enter the second sub-dosing unit 113 through the fourth conveying pipeline 1604 and the sixth conveying pipeline 1606, and then enter the first mixing cavity 1301a of the first mixing unit 130a through the fifth conveying pipeline 1605 and the second conveying pipeline 1602 and be discharged from the outlet of the first mixing cavity 1301a.

[0083] In some embodiments, the control of the implementation of the fifth working mode by the first conveying control unit and the mixing device control unit can also include, for example: controlling the first mixing unit 130a to be in a closed state, the first sub-valve 1401 and the fifth sub-valve 1405 to be closed, the first reactive component in the first sub-dosing unit 112 to enter the second sub-dosing unit 113 through the fourth conveying pipeline 1604 and the sixth conveying pipeline 1606, and then enter the first sub-circulation cavity 1302-1 of the first mixing unit 130a through the fifth conveying pipeline 1605 and the second conveying pipeline 1602, then close the second sub-valve 1402 and open the fifth sub-valve 1405, so that the reactive component is returned to the second sub-dosing unit 113 again from the third conveying pipeline 1603 and the sixth conveying pipeline 1606, and after a certain time of circulation, the reactive component is discharged from the outlet of the first mixing unit 130a.

[0084] In order to avoid the accumulation of reactive components in the pipeline and the wear of the pipeline caused by the second sub-reactive component, the first reactive component can be kept circulating in the corresponding pipeline before and after the use of the reactive plastic preparation device. In some embodiments, the reactive plastic preparation device further comprises a sixth working mode, which can be used to perform a circulation operation of the first reactive component in the corresponding pipeline before and after the use of the reactive plastic preparation device. The first conveying control unit and the mixing device control unit can be used to control the implementation of the sixth working mode to perform the circulation operation of the first reactive component in the corresponding pipeline.

[0085] The first sub-dosing unit 112, the second sub-dosing unit 113 and the third sub-dosing unit 114 can process the preparation process of the reactive plastic and the dispensing process of the first reactive component in parallel without stopping, thereby improving the production efficiency. In addition, the second sub-dosing unit 113 and the third sub-dosing unit 114 can be used to dispense and use the first sub-reactive component and the second sub-reactive component, thereby avoiding contaminating the storage device (for example, the first total-dosing unit 111) of the first reactive component. After use, the first reactive component in the first total-dosing unit 111 can be used to clean the second sub-dosing unit 113 and the third sub-dosing unit 114, thereby greatly improving the cleaning efficiency of the reactive plastic preparation device.

[0086] The preparation device provided in the embodiments of the present application can selectively mix and react at least one of the first reactive component, the first sub-reactive component, the second sub-reactive component and the second reactive component in the mixing device, thereby obtaining reactive plastics with different performance requirements. For example, transparent reactive plastics can be prepared according to the mixing reaction of the first reactive component and the second reactive component, or colored reactive plastics can be prepared according to the mixing reaction of the first sub-reactive component and the second reactive component, or reactive plastics with a metallic texture can be prepared according to the mixing reaction of the second sub-reactive component and the second reactive component, or colored reactive plastics with a metallic texture can be prepared according to the mixing reaction of the first sub-reactive component, the second sub-reactive component and the second reactive component. It can be seen that the preparation device of the reactive plastic provided in the embodiments of the present application is suitable for preparing reactive plastics with pigments and / or metal powder. On this basis, according to the performance requirements of the reactive plastic, color paste, metal powder and the like are selectively added in the first reactive component. The added color paste and metal powder each correspond to a dosing unit, thereby avoiding using the same dosing unit to add color paste and / or metal powder, so that the delivery temperature and / or delivery pressure of the dosing unit and the corresponding pipeline do not need to be adjusted when the color paste and / or metal powder is added, and cleaning and other operations of the dosing unit and the corresponding pipeline are avoided, thereby significantly reducing the difficulty of the batching and mixing operation of the reactive plastic.

[0087] In a possible implementation, the embodiments of the present application also provide a preparation method of a reactive plastic, which uses any one of the preparation devices of the reactive plastic described in the above embodiments and multiple embodiments thereof. Figures 1-5

[0088] In the embodiments of the present application, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. The term "multiple" refers to two or more, unless otherwise explicitly limited.​

[0089] The term "and / or" in the embodiments of the present application only describes the association relationship of the associated objects, and indicates that there can be three relationships, for example, A and / or B can represent the three cases of A existing alone, A and B existing together, and B existing alone.

[0090] The above is only to facilitate those skilled in the art to understand the technical solutions of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An apparatus for the preparation of reactive plastics, characterized in that, The device comprises a first dispensing device (110), a second dispensing device (120), and a mixing device (130) connected with the first dispensing device (110) and the second dispensing device (120); The first dispensing device (110) comprises a first total dispensing unit (111), a first sub-dispensing unit (112), a second sub-dispensing unit (113), and a third sub-dispensing unit (114), wherein the first total dispensing unit (111) is used for storing a first reactive component; The first sub-dispensing unit (112) is connected with the first total dispensing unit (111) and the mixing device (130) through pipelines, respectively, and is used for receiving the first reactive component; The second sub-dispensing unit (113) is connected with the first total dispensing unit (111) and the mixing device (130) through pipelines, respectively, and is used for receiving the first reactive component and color paste and forming a first sub-reactive component; The third sub-dispensing unit (114) is connected with the first total dispensing unit (111) and the mixing device (130) through pipelines, respectively, and is used for receiving the first reactive component and metal powder and forming a second sub-reactive component; The second dispensing device (120) is used for storing a second reactive component; The preparation device comprises a first conveying control unit (140), and the first conveying control unit (140) comprises a plurality of first valve pieces (141); The plurality of first valve pieces (141) are arranged on the pipelines between the first total dispensing unit (111) and the first sub-dispensing unit (112), the second sub-dispensing unit (113), and the third sub-dispensing unit (114), and the pipelines between the first sub-dispensing unit (112), the second sub-dispensing unit (113), the third sub-dispensing unit (114), and the mixing device (130), respectively; The preparation device further comprises a second conveying control unit (150), and the second conveying control unit (150) comprises a plurality of second valve pieces (151); The plurality of second valve pieces (151) are arranged on the pipelines between the second dispensing device (120) and the mixing device (130), respectively.

2. The preparation device according to claim 1, characterized in that The mixing device (130) comprises a mixing cavity (1301) and a circulating cavity (1302), and the mixing device (130) comprises an open state and a closed state; when the mixing device (130) is in the open state, the mixing cavity (1301) starts a reactive component mixing operation; and when the mixing device (130) is in the closed state, the circulating cavity (1302) starts a reactive component back feeding operation; The mixing cavity (1301) is connected with one of the first sub-dispensing unit (112), the second sub-dispensing unit (113), the third sub-dispensing unit (114), and the second dispensing device (120) through a plurality of pipelines, respectively. The circulation cavity (1302) is communicated with one of the first sub-dosing unit (112), the second sub-dosing unit (113), the third sub-dosing unit (114) and one of the inlets of the second dousing device (120) through a plurality of pipelines.

3. The preparation device according to claim 2, characterized in that The mixing device (130) comprises a first mixing unit (130a) and a second mixing unit (130b), the first mixing unit (130a) and the second mixing unit (130b) each comprise a housing (1304) and a plunger (1305) movably arranged in the housing (1304), a first mixing cavity (1301a) of the first mixing unit (130a) is arranged on one side of the plunger (1305) of the first mixing unit (130a) in the axial direction, a second mixing cavity (1301b) of the second mixing unit (130b) is arranged on one side of the plunger (1305) of the second mixing unit (130b) in the axial direction, and the second mixing cavity (1301b) is communicated to the first mixing cavity (1301a) for receiving the reaction components from the first mixing cavity (1301a); The first mixing cavity (1301a) of the first mixing unit (130a) is connected with one of the first sub-dosing unit (112), the second sub-dosing unit (113) and one of the outlets of the second dousing device (120) through a plurality of pipelines; the second mixing cavity (1301b) of the second mixing unit (130b) is connected with one of the outlets of the third sub-dosing unit (114) through a pipeline; The circulation cavity (1302) of the first mixing unit (130a) comprises a first sub-circulation cavity (1302-1) and a second sub-circulation cavity (1302-2), the first sub-circulation cavity (1302-1) is connected with one of the first sub-dosing unit (112) and the second sub-dosing unit (113) through a plurality of pipelines, and the second sub-circulation cavity (1302-2) is connected with one of the inlets and the outlets of the second dousing device (120) through a plurality of pipelines.

4. The preparation device according to claim 3, characterized in that For the first mixing unit (130a), the first sub-circulation cavity (1302-1) and the second sub-circulation cavity (1302-2) are arranged on the wall of the plunger (1305) of the first mixing unit (130a); And, along the movement direction of the plunger (1305), the first pipeline (1307) and the second pipeline (1308) are arranged on the housing (1304) of the first mixing unit (130a) at intervals, and the fourth pipeline (1303) and the fifth pipeline (1306) are arranged opposite to the first pipeline (1307) and the second pipeline (1308) respectively, the first pipeline (1307) is connected with one of the inlets of the first sub-dosing unit (112) and the second sub-dosing unit (113), the second pipeline (1308) is connected with one of the outlets of the first sub-dosing unit (112) and the second sub-dosing unit (113), the fourth pipeline (1303) is connected with one of the inlets of the second dosing device (120), and the fifth pipeline (1306) is connected with one of the outlets of the second dosing device (120); The plunger (1305) can reciprocate between a first position and a second position, when the plunger (1305) of the first mixing unit (130a) is in the first position, the first mixing unit (130a) is in a closed state, the first pipeline (1307) and the second pipeline (1308) are in communication with the first sub-cycle cavity (1302-1), and the fourth pipeline (1303) and the fifth pipeline (1306) are in communication with the second sub-cycle cavity (1302-2); When the plunger (1305) of the first mixing unit (130a) is in the second position, the first mixing unit (130a) is in an open state, the first pipeline (1307) is not in communication with the first mixing cavity (1301a) and the first sub-cycle cavity (1302-1), the second pipeline (1308) is in communication with the first mixing cavity (1301a) and not in communication with the first sub-cycle cavity (1302-1), the fourth pipeline (1303) is not in communication with the first mixing cavity (1301a) and the second sub-cycle cavity (1302-2), and the fifth pipeline (1306) is in communication with the first mixing cavity (1301a) and not in communication with the second sub-cycle cavity (1302-2).

5. The preparation device according to claim 4, characterized in that The first mixing unit (130a) has a first outlet in communication with the first mixing cavity (1301a), and the first outlet also communicates to the second mixing cavity (1301b) of the second mixing unit (130b), the second mixing unit (130b) has a second outlet in communication with the second mixing cavity (1301b), and the second outlet communicates to the outside; When the plunger (1305) of the first mixing unit (130a) moves from the second position to the third position, the reaction components in the first mixing cavity (1301a) enter the second mixing cavity (1301b) through the first outlet.

6. The preparation device according to claim 4, characterized in that For the second mixing unit (130b), a third pipeline (1309) is arranged on the housing (1304) of the second mixing unit (130b) along the movement direction of the plunger (1305), and the third pipeline (1309) is connected with one of the outlets of the third sub-dosing unit (114); When the plunger (1305) in the second mixing unit (130b) is at the first position, the second mixing unit (130b) is in a closed state, and the third pipeline (1309) is not communicated with the second mixing cavity (1301b); When the plunger (1305) in the second mixing unit (130b) moves from the first position to the second position, the second mixing unit (130b) is in an open state, the third pipeline (1309) is communicated with the second mixing cavity (1301b) and discharged; When the plunger (1305) in the second mixing unit (130b) moves from the second position to the third position, the mixed components in the second mixing cavity (1301b) are discharged from the second outlet.

7. The preparation device of claim 4, wherein The preparation device comprises a first working mode, a second working mode and a third working mode, and further comprises a mixing device control unit, which is used to control the movement of the plunger (1305) to realize the opening or closing of the first mixing cavity (1301a), the second mixing cavity (1301b) and the circulation cavity (1302); Part of the first valve (141) in the first delivery control unit (140), the second delivery control unit (150) and the mixing device control unit cooperate to control the implementation of the first working mode, which is used to implement the mixing operation of the first reactive component and the second reactive component in the first mixing cavity (1301a) or the return operation to the circulation cavity (1302), wherein another part of the first valve (141) in the first delivery control unit (140), the second delivery control unit (150) and the mixing device control unit cooperate to control the implementation of the second working mode, which is used to implement the mixing operation of the first sub-reactive component and the second reactive component in the first mixing cavity (1301a) or the return operation to the circulation cavity (1302); Still another part of the first valve (141) in the first delivery control unit (140) and the mixing device control unit cooperate to control the implementation of the third working mode, which is used to implement or interrupt the mixing operation of the second sub-reactive component in the second mixing cavity (1301b) with the reactive component from the first mixing cavity (1301a).

8. A method of producing a reactive plastic, characterized by, The preparation method of the reactive plastic adopts the preparation device of the reactive plastic according to any one of claims 1-7. The preparation method of the reactive plastic adopts the preparation device of the reactive plastic according to any one of claims 1-7.

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