Reactive plastic preparation device and method

Abstract

The invention discloses a preparation device and method of reactive plastic, and belongs to the technical field of chemical equipment. The device comprises a first dosing device, a second dosing device, and a mixing device in communication with the first dosing device and the second dosing device. The first dosing device comprises a first total dosing unit for storing a first reactive component; a first sub-dosing unit in communication with the first total dosing unit and the mixing device; the second sub-rationing unit is communicated with the first total rationing unit and the mixing device and is used for receiving the first reactive component and the color paste and forming a first sub-reactive component; and the third sub-distribution unit is communicated with the first total distribution unit and the mixing device and is used for receiving the first reactive component and the metal powder and forming a second sub-reactive component. By means of the device, the reactive plastic with the pigment and / or the metal powder can be selectively prepared, and the batching and mixing operation difficulty of the reactive plastic is reduced.

Description

Technical Field

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

[0002] Reactive plastics, also known as reaction-molded plastics, are prepared by mixing different reactive components (eg, reactive A component and reactive B component) and reacting them. Typically, the reactive components are in the form of a mixture.

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

[0004] However, the apparatus for preparing reactive plastics has at least the following technical problems: when adding a new component to the reactive component, not only does it need to readjust the conveying temperature and / or conveying pressure, but it also needs to clean the storage device and conveying device before adding, which is complicated. Moreover, the current apparatus for preparing reactive plastics is not suitable for preparing reactive plastics with pigments and metal powders. Summary of the invention

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

[0006] In a first aspect, the present application provides a device for preparing a reactive plastic, the device comprising: a first dispensing device, a second dispensing device, and a mixing device connected to the first dispensing device and the second dispensing device; the first dispensing device comprises 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 used to store a first reactive component; wherein the first sub-dispensing unit is connected to the first total dispensing unit and the mixing device through pipelines, respectively, and the first sub-dispensing unit is used to receive the first reactive component; the second sub-dispensing unit is connected to the first total dispensing unit and the mixing device through pipelines, respectively, and the second sub-dispensing unit is used to receive the first reactive component and color paste and form a first sub-reactive component; the third sub-dispensing unit is connected to the first total dispensing unit and the mixing device through pipelines, respectively, and the third sub-dispensing unit is used to receive the first reactive component and metal powder and form a second sub-reactive component; the second dispensing device is used to store the second reactive component.

[0007] In some possible embodiments, the preparation device includes a first conveying control unit, which includes a plurality of first valve components; the plurality of first valve components are respectively arranged on the pipeline between the first total distribution unit and the first sub-distribution unit, the second sub-distribution unit and the third sub-distribution unit, and on the pipeline between the first sub-distribution unit, the second sub-distribution unit, the third sub-distribution unit and the mixing device.

[0008] In some possible implementations, the preparation device further includes a second delivery control unit, and the second delivery control unit includes a plurality of second valve components; the plurality of second valve components are respectively disposed on the pipeline between the second dispensing device and the mixing device.

[0009] In some possible embodiments, the mixing device includes a mixing chamber and a circulation chamber; the mixing device includes an open state and a closed state, when the mixing device is in the open state, the mixing chamber starts the reactive component mixing operation, and when the mixing device is in the closed state, the circulation chamber starts the reactive component return operation; the mixing chamber is connected to one of the outlets of the first sub-distribution unit, the second sub-distribution unit, the third sub-distribution unit, and the second distributing device through multiple pipelines; the circulation chamber is connected to one of the inlets of the first sub-distribution unit, the second sub-distribution unit, the third sub-distribution unit, and the second distributing device through multiple pipelines.

[0010] In some possible embodiments, the mixing device includes a first mixing unit and a second mixing unit, the first mixing unit and the second mixing unit both include a shell and a plunger movably arranged in the shell, the first mixing chamber of the first mixing unit is arranged on one axial side of the plunger of the first mixing unit, the second mixing chamber of the second mixing unit is arranged on one axial side of the plunger of the second mixing unit, and the second mixing chamber is connected to the first mixing chamber for receiving reaction components from the first mixing chamber; the first mixing chamber of the first mixing unit is connected to one of the outlets of the first sub-dispensing unit, the second sub-dispensing unit and the second dispensing device through a plurality of pipelines; the second mixing chamber of the second mixing unit is connected to one of the outlets of the third sub-dispensing unit through a pipeline; the circulation chamber of the first mixing unit includes a first sub-circulation chamber and a second sub-circulation chamber, the first sub-circulation chamber is connected to one of the inlet and outlet of the first sub-dispensing unit and the second sub-dispensing unit through a plurality of pipelines, and the second sub-circulation chamber is connected to one of the inlet and outlet of the second dispensing device through a plurality of pipelines.

[0011] In some possible embodiments, for the first mixing unit, the first sub-circulation chamber and the second sub-circulation chamber are arranged on the wall of the plunger of the first mixing unit; and, along the movement direction of the plunger, the first pipeline and the second pipeline are arranged on the shell of the first mixing unit at intervals, and the fourth pipeline and the fifth pipeline are respectively opposite to the first pipeline and the second pipeline, the first pipeline is connected to one of the inlets of the first sub-dispensing unit and the second sub-dispensing unit, the second pipeline is connected to one of the outlets of the first sub-dispensing unit and the second sub-dispensing unit, the fourth pipeline is connected to one of the inlets of the second dispensing device, and the fifth pipeline is connected to one of the outlets of the second dispensing device; the plunger can capable of reciprocating between a first position and a second position; when the plunger of the first mixing unit is in the first position, the first mixing unit is in a closed state, the first pipeline and the second pipeline are connected to the first sub-circulation chamber, and the fourth pipeline and the fifth pipeline are connected to the second sub-circulation chamber; when the plunger of the first mixing unit is in the second position, the first mixing unit is in an open state, the first pipeline is not connected to the first mixing chamber and the first sub-circulation chamber, the second pipeline is connected to the first mixing chamber and is not connected to the first sub-circulation chamber, the fourth pipeline is not connected to the first mixing chamber and the second sub-circulation chamber, and the fifth pipeline is connected to the first mixing chamber and is not connected to the second sub-circulation chamber.

[0012] In some possible embodiments, the first mixing unit has a first outlet connected to the first mixing chamber, the first outlet is also connected to the second mixing chamber of the second mixing unit, the second mixing unit has a second outlet connected to the second mixing chamber, and the second outlet is connected 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 chamber enter the second mixing chamber from the first outlet.

[0013] In some possible embodiments, for the second mixing unit, a third pipeline is provided on the shell of the second mixing unit along the movement direction of the plunger, and the third pipeline is connected to 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 connected to the second mixing chamber; 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 connected to the second mixing chamber; when the plunger in the second mixing unit moves from the second position to the third position, the mixed components in the second mixing chamber are discharged from the second outlet.

[0014] In some possible implementations, the preparation device includes a first working mode, a second working mode, and a third working mode, and the preparation device also includes a mixing device control unit, the mixing device control unit is used to control the movement of the plunger to realize the opening or closing of the first mixing chamber, the second mixing chamber and the circulation chamber; part of the first valve member in the first delivery control unit, the second delivery control unit and the mixing device control unit cooperate to control the implementation of the first working mode, the first working mode is used to implement the mixing operation of the first reactive component and the second reactive component in the first mixing chamber or the return operation to the circulation chamber, wherein another part of the first valve member in the first delivery control unit, the second delivery control unit and the mixing device control unit cooperate to control the implementation of the second working mode, the second working mode is used to implement the mixing operation of the first sub-reactive component and the second reactive component in the first mixing chamber or the return operation to the circulation chamber; another part of the first valve member in the first delivery control unit cooperates with the mixing device control unit to control the implementation of the third working mode, the third working mode is used to implement or interrupt the mixing operation of the second sub-reactive component in the second mixing chamber with the reactive component from the first mixing chamber.

[0015] In a second aspect, the present application provides a method for preparing a reactive plastic, wherein the method for preparing a reactive plastic adopts the device for preparing a reactive plastic as described in any one of the first aspects of the present application.

[0016] The beneficial effects of the technical solution provided by this application include at least:

[0017] The above-mentioned preparation device provided in the embodiment of the present application can selectively make at least one of the first reactive component, the first sub-reactive component, and the second sub-reactive component react with the second reactive component in the mixing device, so as to obtain reactive plastics with different performance requirements. For example, a transparent reactive plastic can be prepared according to the mixed reaction of the first reactive component and the second reactive component, or a colored reactive plastic can be prepared according to the mixed reaction of the first sub-reactive component and the second reactive component, or a reactive plastic with a metallic texture can be prepared according to the mixed reaction of the second sub-reactive component and the second reactive component, or a colored reactive plastic with a metallic texture can be prepared by the mixed 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 embodiment of the present application is suitable for the preparation of reactive plastics with pigments and / or metal powders. On this basis, according to the performance requirements of the reactive plastics, color paste, metal powder, etc. are selectively added to the first reactive component. The added color paste and metal powder each correspond to a dispensing unit, thereby avoiding the use of the same dispensing unit to add color paste and / or metal powder, thereby achieving no need to readjust the delivery temperature and / or delivery pressure of the dispensing unit and the corresponding pipelines when adding color paste and / or metal powder, and at the same time avoiding operations such as cleaning of the dispensing unit and the corresponding pipelines, thereby significantly reducing the difficulty of the batching and mixing operations of the reactive plastics. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a structural schematic diagram of a reactive plastic preparation device provided in an embodiment of the present application;

[0020] Figure 2 It is a schematic structural diagram of another reactive plastic preparation device provided in an embodiment of the present application;

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

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

[0023] Figure 5 It is a schematic structural diagram of another reactive plastic preparation device provided in an embodiment of the present application.

[0024] The reference numerals in the figures represent respectively:

[0025] 110. A first dispensing device;

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

[0027] 120. A second dispensing device;

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

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

[0030] 1302-1, first sub-circulation chamber; 1302-2, second sub-circulation chamber;

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

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

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

[0034] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0035] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0036] Figure 1 Schematic diagram of a reactive plastic preparation device provided in an embodiment of the present application. Figure 1 The reactive plastic preparation device provided in the embodiment of the present application may include, for example, a first dispensing device 110 , a second dispensing device 120 , and a mixing device 130 connected to the first dispensing device 110 and the second dispensing device 120 .

[0037] The first dispensing device 110 may include, for example, 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 be connected to the first total dispensing unit 111 and the mixing device 130 through pipelines, respectively; the second sub-dispensing unit 113 may be connected to the first total dispensing unit 111 and the mixing device 130 through pipelines, respectively; and the third sub-dispensing unit 114 may be connected to the first total dispensing unit 111 and the mixing device 130 through pipelines, respectively.

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

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

[0040] The above-mentioned preparation device provided in the embodiment of the present application can selectively make at least one of the first reactive component, the first sub-reactive component, and the second sub-reactive component react with the second reactive component in the mixing device 130, so as to obtain reactive plastics with different performance requirements. For example, a transparent reactive plastic can be prepared according to the mixed reaction of the first reactive component and the second reactive component, or a colored reactive plastic can be prepared according to the mixed reaction of the first sub-reactive component and the second reactive component, or a reactive plastic with a metallic texture can be prepared according to the mixed reaction of 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 embodiment of the present application is suitable for the preparation of reactive plastics with pigments and / or metal powders. On this basis, according to the performance requirements of the reactive plastics, color paste, metal powder, etc. are selectively added to the first reactive component. The added color paste and metal powder each correspond to a dispensing unit, thereby avoiding the use of the same dispensing unit to add color paste and / or metal powder, thereby achieving no need to readjust the delivery temperature and / or delivery pressure of the dispensing unit and the corresponding pipeline when adding the color paste and / or metal powder, and at the same time avoiding operations such as cleaning of the dispensing unit and the corresponding pipelines, thereby significantly reducing the difficulty of the batching and mixing operations of the reactive plastics.

[0041] In some embodiments, the first reactive component may be, for example, a polyhydric mixed system including a catalyst, a chain extender, and a polyol. In some embodiments, the polyol may be, for example, a polyester polyol, a polyether polyol, etc., and the present application does not limit this aspect.

[0042] In some embodiments, the color paste may be, for example, a fluid or liquid formed by mixing the first reactive component and the pigment. In some embodiments, the pigment may be, for example, one or more of iron oxide, phthalocyanine green, pearl white, fluorescent green, and the present application is not limited in this regard.

[0043] In some embodiments, the metal powder may be, for example, aluminum powder, copper powder, gold powder, etc.; the size of the metal powder may be, for example, 20 μm-60 μm, for example, 20 μm, 25 μm, 30 μm, 35 μm, 40 μm, etc., and the present application does not impose any limitation in this regard.

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

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

[0046] Considering that in some implementation scenarios, during the preparation of the reactive plastic, it may be necessary to selectively deliver one or more of the first reactive component, the first sub-reactive component, and the second sub-reactive component to the mixing device 130 to be mixed with the second reactive component. In view of this, in some embodiments, the preparation device of the reactive plastic may include, for example, a first delivery control unit 140, and the first delivery control unit 140 may include, for example, a plurality of first valve components 141. The plurality of first valve components 141 may be respectively disposed on the pipeline between the first total distribution unit 111 and the first sub-distribution unit 112, the second sub-distribution unit 113, and the third sub-distribution unit 114; and the plurality of first valve components 141 may also be respectively disposed on the pipeline between the first sub-distribution unit 112, the second sub-distribution unit 113, the third sub-distribution unit 114 and the mixing device 130. Multiple first valve components 141 can be used to respectively control the connection or disconnection of corresponding pipelines, so that the first total distribution unit 111 can selectively deliver the first reactive component to one or more of the first sub-distribution unit 112, the second sub-distribution unit 113, and the third sub-distribution unit 114, or the first reactive component in the first sub-distribution unit 112, the first sub-reactive component in the second sub-distribution unit 113, and the second sub-reactive component in the third sub-distribution unit 114 can be selectively delivered to the mixing device 130.

[0047] In some embodiments, the first sub-dispensing unit 112 can be connected to the second sub-dispensing unit 113 through a pipeline, and the multiple first valve components 141 of the first conveying control unit can also be arranged on the pipeline between the first sub-dispensing unit 112 and the second sub-dispensing unit 113, so that after using the first sub-reactive component, the preparation device of the reactive plastic can be cleaned by the first reactive component in the first sub-dispensing unit 112 to avoid contamination of the first total dispensing unit 111.

[0048] It is also considered that in the preparation process of the reactive plastic, depending on the implementation scenario, it may be necessary to stop or start the delivery of the second reactive component in a timely manner. In view of this, in some embodiments, the preparation device further includes a second delivery control unit 150, and the second delivery control unit 150 includes a plurality of second valves 151; the plurality of second valves 151 are respectively arranged on the pipeline between the second dispensing device 120 and the mixing device 130, and are used to control the connection or disconnection of the corresponding pipelines, so that the second reactive component in the second dispensing device 120 can be delivered to the mixing device 130 in a timely manner.

[0049] It is also considered that during the preparation of the reactive plastic, when the mixing reaction of the reactive components in the mixing device 130 is temporarily stopped, the reactive components temporarily retained in the pipeline may change in viscosity due to changes in factors such as temperature and stirring, and 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 flow back to the corresponding storage device or unit to maintain appropriate fluidity. In some embodiments, the mixing device 130 may include, for example, a mixing chamber 1301 and a circulation chamber 1302. The mixing device 130 may 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 reactive component mixing operation. When the mixing device 130 is in the closed state, the circulation chamber 1302 can start the reactive component return operation. The mixing chamber 1301 can be connected to one of the outlets of the second dispensing device of the first sub-dispensing unit 112, the second sub-dispensing unit 113, and the third sub-dispensing unit 114 through multiple pipelines. The circulation chamber 1302 can be connected to one of the inlets 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 multiple pipelines.

[0050] Figure 2 is a schematic diagram of the structure of another reactive plastic preparation device provided in the embodiment of the present application. It should be noted that, Figure 2 The preparation device of the reactive plastic shown in the figure can be Figure 1 Another embodiment of the preparation device of reactive plastics is shown in FIG. , and the same contents are not repeated here. Figure 2 Another reactive plastic preparation device provided in an embodiment of the present application may include, for example, a first dispensing device 110, a second dispensing device 120, and a mixing device 130. The first dispensing device 110 may include, for example, 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 mixing device 130 may include, for example, a first mixing unit 130a and a second mixing unit 130b. The first mixing unit 130a may include, for example, a circulation chamber 1302 and a first mixing chamber 1301a.

[0051] Considering that the second sub-reactive component mixed with metal powder may cause wear to the preparation device of the reactive plastic during the back-injection operation, or cause the position corresponding to the back-injection operation in the preparation device of the reactive plastic to be blocked. In view of this, the mixing operation of the second sub-reactive component can be separated, and the back-injection operation is not performed on the second sub-reactive component. In some embodiments, the mixing device 130 may include a first mixing unit 130a and a second mixing unit 130b. Among them, the first mixing unit 130a can be used to receive the reactive component that does not contain metal powder and start the mixing operation of the reactive component that does not contain metal powder in the first mixing chamber 1301a or the back-injection operation to the circulation chamber 1302, and the second mixing unit 130b can be used to receive the reactive component containing metal powder and start the mixing operation of the reactive component containing metal powder in the second mixing chamber 1301b.

[0052] In some embodiments, the first mixing unit 130a and the second mixing unit 130b both include a housing 1304 and a plunger 1305 movably disposed in the housing 1304. The first mixing chamber 1301a of the first mixing unit 130a may be disposed at one axial side of the plunger 1305 of the first mixing unit 130a, the second mixing chamber 1301b of the second mixing unit 130b may be disposed at one axial side of the plunger 1305 of the second mixing unit 130b, and the second mixing chamber 1301b may be connected to the first mixing chamber 1301a to receive the reactive component from the first mixing chamber 1301a (the reactive component from the first mixing chamber 1301a may be a single reactive component or a mixture of different reactive components).

[0053] In some embodiments, the first mixing chamber 1301a of the first mixing unit 130a can be connected to one of the outlets of the first sub-dispensing unit 112, the second sub-dispensing unit 113, and the second dispensing device 120 through multiple pipes, so that the first reactive component in the first sub-dispensing unit 112, the first sub-reactive component in the second sub-dispensing unit 113, and the second reactive component in the second dispensing device 120 can enter the first mixing chamber 1301a through the corresponding pipes for mixing reaction when needed.

[0054] Considering that the first reactive component / first sub-reactive component may solidify when mixed with the second reactive component. In view of this, the first reactive component / first sub-reactive component and the second reactive component may not meet 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 pipeline.

[0055] In some embodiments, the second mixing chamber 1301b of the second mixing unit 130b is 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] It is also considered that in the preparation process of the reactive plastic, the first reactive component and the first sub-reactive component mixed with the color paste are usually not used at the same time. In order to save pipelines and optimize the pipeline arrangement, some common pipelines 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 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 at the same time.

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

[0058] In some embodiments, the plungers 1305 of the first mixing unit 130a and the second mixing unit 130b can reciprocate 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 It is a schematic diagram of the structure of the first mixing unit 130a provided in an embodiment of the present application. Figure 4 It is a schematic diagram of the structure of the second mixing unit 130b provided in an embodiment of the present application. Figure 3 and Figure 4 The schematic diagram of the plunger moving from the first position to the second position is illustrated below. Figure 3 and Figure 4 The structures of the first mixing unit 130a and the second mixing unit 130b provided in the embodiments of the present application are described respectively.

[0059] See also Figure 3 The first mixing unit 130a provided in the embodiment of the present application may, for example, include: a first mixing chamber 1301a, a circulation chamber 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 chamber 1301a can be arranged on one axial side of the plunger 1305, and the first sub-circulation chamber 1302-1 and the second sub-circulation chamber 1302-2 can be arranged on the wall of the plunger 1305 of the first mixing unit 130a. 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, and the fourth pipeline 1303 and the fifth pipeline 1306 are arranged on the housing 1304 of the first mixing unit 130a at intervals. Among them, the first pipeline 1307 is connected to one of the inlets of the first sub-dispensing unit 112 and the second sub-dispensing unit 113; the second pipeline 1308 is connected to one of the outlets of the first sub-dispensing unit 112 and the second sub-dispensing unit 113. The fourth pipeline 1303 is connected to one of the inlets of the second dispensing device 120 , and the fifth pipeline 1306 is connected to one of the outlets of the second dispensing device 120 .

[0061] In some embodiments, the plunger 1305 can reciprocate between a first position and a second position to place the first mixing unit 130a in a closed state or an open state.

[0062] In some embodiments, the plunger 1305 in the first mixing unit 130a is in a first position (eg, Figure 3), the first mixing unit 130a is in a closed state, the first pipeline 1307 and the second pipeline 1308 are connected to the first sub-circulation chamber 1302-1, and the fourth pipeline 1303 and the fifth pipeline 1306 are connected to the second sub-circulation chamber 1302-2, so that the reactive components temporarily retained in the pipelines can be returned to the corresponding storage devices or units.

[0063] In some embodiments, the plunger 1305 in the first mixing unit 130a is in the second position (eg, Figure 3 ), the first mixing unit 130a is in an open state, the first pipeline 1307 is not connected to the first mixing chamber 1301a and the first sub-circulation chamber 1302-1, the second pipeline 1308 is connected to the first mixing chamber 1301a and is not connected to the first sub-circulation chamber 1302-1, the fourth pipeline 1303 is not connected to the first mixing chamber 1301a and the second sub-circulation chamber 1302-2, and the fifth pipeline 1306 is connected to the first mixing chamber 1301a and is not connected to the second sub-circulation chamber 1302-2, so that the first reactive component, the first sub-reactive component, and the second reactive component can enter the first mixing chamber 1301a for mixing.

[0064] In some embodiments, the plunger 1305 in the first mixing unit 130a can also move to a third position, and the first mixing unit 130a has a first outlet connected to the first mixing chamber 1301a. Figure 3 ), the reactive components in the first mixing chamber 1301a can be discharged from the first outlet.

[0065] In some embodiments, the first mixing unit 130a has a first outlet connected to the first mixing chamber 1301a, the first outlet is also connected to the second mixing chamber 1301b of the second mixing unit 130b, the second mixing unit 130b has a second outlet connected to the second mixing chamber 1301b, and the second outlet is connected to the outside. The plunger 1305 of the first mixing unit 130a can move 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 chamber 1301a can enter the second mixing chamber 1301b from the first outlet.

[0066] The second mixing unit 130b may 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, that is, not connected to any dispensing unit. Alternatively, the second mixing unit 130b may also be designed as a structure without a circulation cavity.

[0067] See also Figure 4The second mixing unit 130b provided in the embodiment of the present application may include, for example: a second mixing chamber 1301b, a shell 1304, a plunger 1305 and a third pipeline 1309.

[0068] In some embodiments, the second mixing chamber 1301b is disposed on one axial side of the plunger 1305 of the second mixing unit 130b. A third pipeline 1309 is disposed on the housing 1304 of the second mixing unit 130b along the movement direction of the plunger 1305. The third pipeline 1309 is connected to one of the outlets of the third sub-dispensing unit 114.

[0069] In some embodiments, the plunger 1305 in the second mixing unit 130b can reciprocate 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, the plunger 1305 in the second mixing unit 130b is in a first position (eg, Figure 4 ), the second mixing unit 130b is in a closed state, and the third pipeline 1309 is not connected to the second mixing chamber 1301b to prevent the second sub-reactive component from entering the second mixing chamber 1301b.

[0071] In some embodiments, the plunger 1305 in the second mixing unit 130b is in a second position (eg, Figure 4 ), the second mixing unit 130b is in an open state, and the third pipeline 1309 is connected to the second mixing chamber 1301b, so that the second sub-reactive component can enter the second mixing chamber 1301b for mixing.

[0072] In some embodiments, the plunger 1305 can also move to a third position, and the second mixing unit 130b has a second outlet connected to the second mixing chamber 1301b, and the second outlet is connected to the outside. Figure 4 As shown in the rightmost figure, the mixed components in the second mixing chamber 1301b can be discharged to the outside from the second outlet, and the preparation device of the reactive plastic can be in a closed state to discharge the reactive components in the mixing device 130 as a whole, and facilitate transportation and cleaning operations after disassembly.

[0073] In some embodiments, the first mixing unit 130a has a first outlet connected to the first mixing chamber 1301a, and the first outlet is also connected to the second mixing chamber 1301b of the second mixing unit 130b. The second mixing unit 130b has a second outlet connected to the second mixing chamber 1301b, and the second outlet is connected to the outside. When the plunger 1305 of the second mixing unit 130b is in the first position and the second position, the reactive component in the first mixing chamber 1301a can enter the second mixing chamber 1301b. In some embodiments, the preparation device of reactive plastics can include, for example, a first working mode, a second working mode, and a third working mode, for implementing a mixing reaction according to different reactive components. The first working mode can be used to implement the mixing operation of the first reactive component and the second reactive component in the first mixing chamber 1301a or the return operation to the circulation chamber 1302; the second working mode can be used to implement the mixing operation of the first sub-reactive component and the second reactive component in the first mixing chamber 1301a or the return operation to the circulation chamber 1302; the third working mode can be used to implement or interrupt the mixing operation of the reactive component or the mixture of reactive components in the second mixing chamber 1301b with the second sub-reactive component. In the return operation to the circulation chamber 1302, the first reactive component and the first sub-reactive component are respectively returned to the first sub-dispensing unit 112 and the second sub-dispensing unit 113 through the first sub-circulation chamber 1302-1 and the corresponding pipelines, and the second reactive component is returned to the second dispensing device 120 through the corresponding pipelines of the second sub-circulation chamber 1302-2.

[0074] In some embodiments, the reactive plastic preparation device may include, for example, a mixing device control unit, which is used to control the movement of the plunger 1305 to open or close the first mixing chamber 1301a, the second mixing chamber 1301b, and the circulation chamber 1302. The mixing device control unit may 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, part of the first valve member 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, so as to implement the mixing operation of the first reactive component and the second reactive component in the first mixing chamber 1301a or the return operation to the circulation chamber 1302. Another part of the first valve member 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 working mode, so as to implement the mixing operation of the first sub-reactive component and the second reactive component in the first mixing chamber 1301a or the return operation to the circulation chamber 1302. Another part of the first valve member 141 in the first delivery control unit 140 cooperates with the mixing device control unit to control the implementation of the third working mode, so as 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 This is a schematic diagram of the structure of another reactive plastic preparation device provided in the embodiment of the present application. It should be noted that: Figure 5 The preparation device of the reactive plastic shown in the figure can be Figure 1 or Figure 2 An embodiment of a preparation device for reactive plastics is shown in the figure, and the same contents will not be repeated here.

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

[0078] In some embodiments, a portion of the first valve component 141 in the first conveying control unit 140, the second conveying control unit 150 and the mixing device control unit cooperate to implement control of the first working mode of the reactive plastic preparation device, which may include, for example: when implementing the mixing operation of the first reactive component and the second reactive component in the first mixing chamber 1301a, the first mixing unit 130a may be in an open state, the first sub-valve component 1401 is opened, and the third sub-valve component 1403 is closed, and the first reactive component may enter the first mixing chamber 1301a of the first mixing unit 130a through the first conveying pipeline 1601 and the second conveying pipeline 1602 in sequence, and mix with the second reactive component entering the first mixing chamber 1301a. When the first reactive component and the second reactive component are returned to the circulation chamber 1302, the first mixing unit 130a can be in a closed state, the third sub-valve 1403 and the fourth sub-valve 1404 are closed, and the first sub-valve 1401, the second sub-valve 1402, and the fifth sub-valve 1405 are opened. The first reactive component can be kept circulating between the first sub-dispensing unit 112 and the first sub-circulation chamber 1302-1 of the first mixing unit 130a through the first delivery pipeline 1601, the second delivery pipeline 1602, the first sub-circulation chamber 1302-1 of the first mixing unit 130a, the third delivery pipeline 1603 and the fourth delivery pipeline 1604; the second reactive component is kept circulating between the second dispensing device 120 and the second sub-circulation chamber 1302-2 of the first mixing unit 130a through the second sub-circulation chamber 1302-2 of the first mixing unit 130a and the corresponding pipeline.

[0079] In some embodiments, another part of the first conveying control unit 140, the first valve component 141, the second conveying control unit 150 and the mixing device control unit cooperate to implement control of the second working mode of the reactive plastic preparation device, which may include, for example: when implementing the mixing operation of the first sub-reactive component and the second reactive component in the first mixing chamber 1301a, the first mixing unit 130a can be in an open state, the first sub-valve component 1401 is closed, and the third sub-valve component 1403 is opened, and the first sub-reactive component can enter the first mixing chamber 1301a of the first mixing unit 130a through the fifth conveying pipeline 1605 and the second conveying pipeline 1602 in sequence, and mix with the second reactive component entering the first mixing chamber 1301a. When the first sub-reactive component and the second reactive component are returned to the circulation chamber 1302, 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 kept circulating between the second sub-dispensing unit 113 and the first sub-circulation chamber 1302-1 of the first mixing unit 130a through the fifth delivery pipeline 1605, the second delivery pipeline 1602, the first sub-circulation chamber 1302-1 of the first mixing unit 130a, the third delivery pipeline 1603 and the sixth delivery pipeline 1606; the second reactive component is kept circulating between the second dispensing device 120 and the second sub-circulation chamber 1302-2 of the first mixing unit 130a through the second sub-circulation chamber 1302-2 of the first mixing unit 130a and the corresponding pipeline.

[0080] In some embodiments, another part of the first valve component 141 in the first delivery control unit 140 cooperates with the mixing device control unit to implement control of the third working mode of the reactive plastic preparation device, which may include, for example: when implementing the mixing operation of the reactive component or the mixture of reactive components in the second mixing chamber 1301b of the second mixing unit 130b with the second sub-reactive component, the second mixing unit 130b may be in an open state, the sixth sub-valve component 1406 is opened, and the second sub-reactive component may enter the second mixing chamber 1301b of the second mixing unit 130b through the corresponding pipeline, and mix with the reactive component or the mixture of reactive components in the second mixing chamber 1301b. When interrupting the mixing operation of the reactive component or the mixture of reactive components in the second mixing chamber 1301b of the second mixing unit 130b with the second sub-reactive component, the second mixing unit 130b may be in a closed state, the sixth sub-valve component 1406 is closed, and the second sub-reactive component is prevented from entering the second mixing chamber 1301b of the second mixing unit 130b.

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

[0082] In some embodiments, the first delivery control unit and the mixing device 130 control unit cooperate to control the implementation of the fifth working mode, which may include: 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, and the first reactive component in the first sub-dispensing unit 112 enters the second sub-dispensing unit 113 through the fourth delivery pipeline 1604 and the sixth delivery pipeline 1606; and then enters the first mixing chamber 1301a of the first mixing unit 130a through the fifth delivery pipeline 1605 and the second delivery pipeline 1602 and is discharged from the outlet of the first mixing chamber 1301a.

[0083] In some embodiments, the first delivery control unit and the mixing device 130 control unit cooperate to control the implementation of the fifth working mode, for example, may also include: controlling the first mixing unit 130a to be in a closed state, the first sub-valve 1401 and the fifth sub-valve 1405 are closed, and the first reactive component in the first sub-dispensing unit 112 enters the second sub-dispensing unit 113 through the fourth delivery pipeline 1604 and the sixth delivery pipeline 1606; then enters the first sub-circulation chamber 1302-1 of the first mixing unit 130a through the fifth delivery pipeline 1605 and the second delivery pipeline 1602; then close the second sub-valve 1402 and open the fifth sub-valve 1405, so that the reactive component returns to the second sub-dispensing unit 113 from the third delivery pipeline 1603 and the sixth delivery pipeline 1606 again, and after a certain period of circulation, the reactive component is discharged from the outlet of the first mixing unit 130a.

[0084] Considering that particulate matter may also exist in the second sub-reactive component, in order to avoid the reactive component from being retained in the pipeline and to avoid the second sub-reactive component from causing wear to the pipeline, the first reactive component can be kept circulating in the corresponding pipeline before and after the use of the preparation device of the reactive plastic. In some embodiments, the preparation device of the reactive plastic also includes a sixth working mode, and the sixth working mode can be used to implement the circulation operation of the first reactive component in the corresponding pipeline before and after the use of the preparation device of the reactive plastic. The first conveying control unit and the mixing device control unit can cooperate to control the implementation of the sixth working mode to implement the circulation operation of the first reactive component in the corresponding pipeline.

[0085] Through the first sub-dispensing unit 112, the second sub-dispensing unit 113 and the third sub-dispensing unit 114, the embodiment of the present application can process the preparation process of the reactive plastic and the preparation process of the first reactive component in parallel without stopping the machine, so as to improve the production efficiency. In addition, the present application can also shunt the preparation and use of the first reactive sub-component and the second reactive sub-component through the second sub-dispensing unit 113 and the third sub-dispensing unit 114 to avoid contaminating the storage device of the first reactive component (such as the first total dispensing unit 111). After use, the present application can also clean the second sub-dispensing unit 113 and the third sub-dispensing unit 114 through the first reactive component in the first total dispensing unit 111, which greatly improves the cleaning efficiency of the reactive plastic preparation device.

[0086] The above-mentioned preparation device provided in the embodiment of the present application can selectively make at least one of the first reactive component, the first sub-reactive component, and the second sub-reactive component react with the second reactive component in the mixing device, so as to obtain reactive plastics with different performance requirements. For example, a transparent reactive plastic can be prepared according to the mixed reaction of the first reactive component and the second reactive component, or a colored reactive plastic can be prepared according to the mixed reaction of the first sub-reactive component and the second reactive component, or a reactive plastic with a metallic texture can be prepared according to the mixed reaction of the second sub-reactive component and the second reactive component, or a colored reactive plastic with a metallic texture can be prepared by the mixed 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 embodiment of the present application is suitable for the preparation of reactive plastics with pigments and / or metal powders. On this basis, according to the performance requirements of the reactive plastics, color paste, metal powder, etc. are selectively added to the first reactive component. The added color paste and metal powder each correspond to a dispensing unit, thereby avoiding the use of the same dispensing unit to add color paste and / or metal powder, thereby achieving no need to readjust the delivery temperature and / or delivery pressure of the dispensing unit and the corresponding pipelines when adding color paste and / or metal powder, and at the same time avoiding operations such as cleaning of the dispensing unit and the corresponding pipelines, thereby significantly reducing the difficulty of the batching and mixing operations of the reactive plastics.

[0087] In a possible implementation, the present application also provides a method for preparing a reactive plastic, wherein the method for preparing the reactive plastic adopts the above Figure 1-Figure 5 Any one of the devices for preparing reactive plastics described in its multiple embodiments.

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

[0089] The term "and / or" in the embodiments of the present application is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent three situations: A exists alone, A and B exist at the same time, and B exists alone.

[0090] The above description is only for the purpose of facilitating the technical solution of the present application to be understood by those skilled in the art, 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. A device for preparing reactive plastics, characterized in that: The device comprises: a first dispensing device (110), a second dispensing device (120), and a mixing device (130) connected to 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 to store a first reactive component; The first sub-dispensing unit (112) is connected to the first main dispensing unit (111) and the mixing device (130) through pipelines, and the first sub-dispensing unit (112) is used to receive the first reactive component; The second sub-dispensing unit (113) is connected to the first main dispensing unit (111) and the mixing device (130) through pipelines, and the second sub-dispensing unit (113) is used to receive the first reactive component and the color paste and form a first sub-reactive component; The third sub-dispensing unit (114) is connected to the first main dispensing unit (111) and the mixing device (130) through pipelines, and the third sub-dispensing unit (114) is used to receive the first reactive component and metal powder and form a second reactive component; The second dispensing device (120) is used to store a second reactive component.

2. The preparation device according to claim 1, characterized in that: The preparation device comprises a first conveying control unit (140), wherein the first conveying control unit (140) comprises a plurality of first valve members (141); The plurality of first valve elements (141) are respectively arranged on the pipeline between the first main distribution unit (111) and the first sub-distribution unit (112), the second sub-distribution unit (113) and the third sub-distribution unit (114), and on the pipeline between the first sub-distribution unit (112), the second sub-distribution unit (113), the third sub-distribution unit (114) and the mixing device (130).

3. The preparation device according to claim 2, characterized in that: The preparation device further comprises a second conveying control unit (150), wherein the second conveying control unit (150) comprises a plurality of second valve components (151); The plurality of second valve components (151) are respectively arranged on the pipeline between the second dispensing device (120) and the mixing device (130).

4. The preparation device according to claim 2, characterized in that: The mixing device (130) comprises a mixing chamber (1301) and a circulation chamber (1302); the mixing device (130) comprises an open state and a closed state; when the mixing device (130) is in the open state, the mixing chamber (1301) starts a reactive component mixing operation; when the mixing device (130) is in the closed state, the circulation chamber (1302) starts a reactive component recycling operation; The mixing chamber (1301) is respectively connected to the first sub-dispensing unit (112), the second sub-dispensing unit (113), the third sub-dispensing unit (114), and one of the outlets of the second dispensing device (120) through a plurality of pipelines; The circulation chamber (1302) is respectively connected to the first sub-dispensing unit (112), the second sub-dispensing unit (113), the third sub-dispensing unit (114), and one of the inlets of the second dispensing device (120) through a plurality of pipelines.

5. The preparation device according to claim 4, characterized in that: The mixing device (130) comprises a first mixing unit (130a) and a second mixing unit (130b), wherein the first mixing unit (130a) and the second mixing unit (130b) both comprise a housing (1304) and a plunger (1305) movably arranged in the housing (1304), wherein a first mixing chamber (1301a) of the first mixing unit (130a) is arranged at one axial side of the plunger (1305) of the first mixing unit (130a), and a second mixing chamber (1301b) of the second mixing unit (130b) is arranged at one axial side of the plunger (1305) of the second mixing unit (130b), and the second mixing chamber (1301b) is connected to the first mixing chamber (1301a) for receiving reaction components from the first mixing chamber (1301a); The first mixing chamber (1301a) of the first mixing unit (130a) is connected to one of the outlets of the first sub-dispensing unit (112), the second sub-dispensing unit (113), and the second dispensing device (120) through a plurality of pipelines; the second mixing chamber (1301b) of the second mixing unit (130b) is connected to one of the outlets of the third sub-dispensing unit (114) through a pipeline; The circulation chamber (1302) of the first mixing unit (130a) includes a first sub-circulation chamber (1302-1) and a second sub-circulation chamber (1302-2), wherein the first sub-circulation chamber (1302-1) is connected to one of the inlets and outlets of the first sub-dispensing unit (112) and the second sub-dispensing unit (113) through a plurality of pipes, respectively, and the second sub-circulation chamber (1302-2) is connected to one of the inlets and outlets of the second dispensing device (120) through a plurality of pipes, respectively.

6. The preparation device according to claim 5, characterized in that: For the first mixing unit (130a), the first sub-circulation chamber (1302-1) and the second sub-circulation chamber (1302-2) are arranged on the wall of the plunger (1305) of the first mixing unit (130a); Furthermore, along the movement direction of the plunger (1305), a first pipeline (1307) and a second pipeline (1308) are arranged on the shell (1304) of the first mixing unit (130a) at intervals, and a fourth pipeline (1303) and a fifth pipeline (1306) are respectively opposite to the first pipeline (1307) and the second pipeline (1308), the first pipeline (1307) is connected to one of the inlets of the first sub-dispensing unit (112) and the second sub-dispensing unit (113), the second pipeline (1308) is connected to one of the outlets of the first sub-dispensing unit (112) and the second sub-dispensing unit (113), the fourth pipeline (1303) is connected to one of the inlets of the second dispensing device (120), and the fifth pipeline (1306) is connected to one of the outlets of the second dispensing device (120); The plunger (1305) is capable of reciprocating 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 connected to the first sub-circulation chamber (1302-1), and the fourth pipeline (1303) and the fifth pipeline (1306) are connected to the second sub-circulation chamber (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 connected to the first mixing chamber (1301a) and the first sub-circulation chamber (1302-1), the second pipeline (1308) is connected to the first mixing chamber (1301a) and is not connected to the first sub-circulation chamber (1302-1), the fourth pipeline (1303) is not connected to the first mixing chamber (1301a) and the second sub-circulation chamber (1302-2), and the fifth pipeline (1306) is connected to the first mixing chamber (1301a) and is not connected to the second sub-circulation chamber (1302-2).

7. The preparation device according to claim 6, characterized in that: The first mixing unit (130a) has a first outlet connected to the first mixing chamber (1301a), the first outlet is also connected to the second mixing chamber (1301b) of the second mixing unit (130b), the second mixing unit (130b) has a second outlet connected to the second mixing chamber (1301b), the second outlet is connected 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 chamber (1301a) enter the second mixing chamber (1301b) from the first outlet.

8. The preparation device according to claim 6, characterized in that: For the second mixing unit (130b), a third pipeline (1309) is provided 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 to one of the outlets of the third sub-dispensing unit (114); When the plunger (1305) in the second mixing unit (130b) is in the first position, the second mixing unit (130b) is in a closed state, and the third pipeline (1309) is not connected to the second mixing chamber (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, and the third pipeline (1309) is connected to the second mixing chamber (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 chamber (1301b) are discharged from the second outlet.

9. The preparation device according to claim 6, characterized in that: The preparation device comprises a first working mode, a second working mode, and a third working mode, and the preparation device further comprises a mixing device control unit, wherein the mixing device control unit is used to control 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); Part of the first valve member (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, the first working mode is used to implement a mixing operation of the first reactive component and the second reactive component in the first mixing chamber (1301a) or a return operation to the circulation chamber (1302), wherein another part of the first valve member (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, the second working mode is used to implement a mixing operation of the first sub-reactive component and the second reactive component in the first mixing chamber (1301a) or a return operation to the circulation chamber (1302); Another part of the first valve component (141) in the first conveying control unit (140) cooperates with the mixing device control unit to control the implementation of the third working mode, and the third working mode is used to implement or interrupt the mixing operation of the second sub-reactive component in the second mixing chamber (1301b) with the reaction component from the first mixing chamber (1301a).

10. A method for preparing a reactive plastic, characterized in that: The method for preparing the reactive plastic adopts the device for preparing the reactive plastic according to any one of claims 1-9.

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