Mixing valve

Abstract

The mixing valve comprises a body and a stirring shaft, the body is provided with an observation groove, a mixing cavity, an oil storage cavity and a sealing cavity, the observation groove is formed in one side of the oil storage cavity and communicates with the oil storage cavity, and the sealing cavity is located between the oil storage cavity and the mixing cavity; the stirring shaft sequentially penetrates through the oil storage cavity, the sealing cavity and the mixing cavity, the stirring shaft is sleeved with a plurality of sealing pieces, the sealing pieces are located in the sealing cavity, and the oil storage cavity is used for being filled with lubricating oil; whether the color of the lubricating oil in the oil storage cavity changes or not can be observed through the observation groove, so that whether the mixed glue permeates into the sealing element or not is determined without disassembly inspection.

Description

Technical Field

[0001] The present application relates to the technical field of glue mixing, and in particular to a mixing valve. Background Art

[0002] In the process of automated glue filling, two different glues need to be mixed to form a mixed glue, such as foam glue, and a mixing valve is generally used for mixing. For the mixing valve used to mix and form foam glue, a seal needs to be set between the mixing barrel and the upper valve body for sealing, and the stirring shaft needs to pass through the seal to connect to the motor set on the valve body; because the stirring shaft needs to rotate at high speed, it is easy for the mixed glue to penetrate into the seal after the seal is worn. The mixing valve in the related art needs to be disassembled regularly to check whether the mixed glue has penetrated into the seal. Utility Model Content

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a mixing valve, which can observe the color of the lubricating oil in the first cavity through an observation slot to determine whether the mixed glue has penetrated into the sealing element.

[0004] A mixing valve according to an embodiment of the present application includes:

[0005] A body, wherein the body is provided with a mixing chamber, an oil storage chamber and a sealing chamber, an outer side wall of the body is provided with an observation groove, the observation groove is arranged on one side of the oil storage chamber, and the observation groove is communicated with the oil storage chamber, and the sealing chamber is located between the oil storage chamber and the mixing chamber;

[0006] A stirring shaft, wherein the stirring shaft is sequentially inserted into the oil storage chamber, the sealing chamber and the mixing chamber, the stirring shaft sleeve is provided with a plurality of sealing members, and the sealing members are located in the sealing chamber, and the oil storage chamber is used for filling lubricating oil.

[0007] The mixing valve according to the embodiment of the present application has at least the following beneficial effects: when in use, the stirring shaft is driven to rotate so that the stirring shaft stirs the glue in the mixing chamber, and during use, if the mixed glue penetrates the seal, the color of the lubricating oil in the oil storage chamber will change when the mixed glue comes into contact with the lubricating oil in the oil storage chamber. Since the observation groove is connected to the oil storage chamber, it is possible to observe whether the color of the lubricating oil in the oil storage chamber changes through the observation groove, thereby determining whether the mixed glue has penetrated the seal without disassembly and inspection.

[0008] According to some embodiments of the present application, the main body is provided with a partition, the partition is located between the oil storage chamber and the sealing chamber, the partition is provided with a first through hole, the cross-sectional area of ​​the first through hole is smaller than the cross-sectional area of ​​the sealing chamber, the oil storage chamber and the sealing chamber are connected through the first through hole, the stirring shaft is passed through the first through hole, and the seal is in contact with the partition.

[0009] According to some embodiments of the present application, a transparent cover plate is further included, and the transparent cover plate is engaged with the observation slot.

[0010] According to some embodiments of the present application, the side wall of the opening end of the observation slot is recessed to form a groove, and the transparent cover is engaged in the groove.

[0011] According to some embodiments of the present application, a pressing plate is further included, which is detachably mounted on the outer wall of the main body, the transparent cover is located between the pressing plate and the main body, and the pressing plate is provided with an observation port, which is opposite to the observation slot.

[0012] According to some embodiments of the present application, the body is further provided with a plurality of glue injection channels and a plurality of cleaning liquid injection channels, the glue injection channels correspond to the cleaning liquid injection channels one by one, one end of the glue injection channel is connected to the mixing chamber, and the other end is connected to the outside of the body; one end of the cleaning liquid injection channel is connected to the corresponding glue injection channel, and the other end is connected to the outside of the body;

[0013] The mixing valve also includes a plurality of first control valves, which are all installed on the body. The first control valves are connected to the cleaning fluid injection channels in a one-to-one correspondence, and the first control valves are used to control the corresponding cleaning fluid injection channels to be cut off or connected.

[0014] According to some embodiments of the present application, a stirring member is further included, and the stirring member is movably disposed in the mixing chamber, and the stirring member is fixedly connected to the stirring shaft.

[0015] According to some embodiments of the present application, a side wall of the stirring member is provided with a plurality of notches, the plurality of notches are distributed at intervals along the circumference of the stirring member, and the notches penetrate the stirring member along the axial direction of the stirring member.

[0016] According to some embodiments of the present application, a plurality of annular grooves are provided on the side wall of the stirring member, and the plurality of annular grooves are spaced apart along the axial direction of the stirring member.

[0017] According to some embodiments of the present application, a first cone is provided on a surface of the stirring member opposite to the glue injection channel, and a cross-sectional area of ​​the first cone gradually decreases in a direction approaching the glue injection channel;

[0018] A second cone portion is provided on a side of the stirring member away from the glue injection channel, and a cross-sectional area of ​​the second cone portion gradually decreases in a direction away from the glue injection channel.

[0019] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present application is further described below with reference to the accompanying drawings and embodiments, wherein:

[0021] Figure 1 This is a schematic diagram of the structure of a mixing valve according to an embodiment of the present application;

[0022] Figure 2 for Figure 1 A schematic structural diagram of a mixing valve from another angle;

[0023] Figure 3 for Figure 1 A top view of a mixing valve;

[0024] Figure 4 for Figure 3 A cross-sectional view of the mixing valve in the CC direction;

[0025] Figure 5 for Figure 3 A cross-sectional view of the mixing valve in the BB direction;

[0026] Figure 6 for Figure 3 A cross-sectional view of the mixing valve in the AA direction;

[0027] Figure 7 for Figure 1 A schematic diagram of the structure of a stirring member of a mixing valve;

[0028] Figure 8 for Figure 7 A schematic structural diagram of the stirring element of the mixing valve from another angle.

[0029] Reference numerals:

[0030] Main body 100; boss 101; oil storage chamber 102; partition 103; observation slot 104; groove 1041; perforation 1042; transparent cover 105; pressure plate 106; sealing chamber 107; first through hole 108; cleaning liquid injection channel 110; third through hole 111; third channel section 112; fourth channel section 113; glue injection channel 120; second through hole 121; first channel section 122; second channel section 123; first notch 121; driving member 130; stirring shaft 131; sealing member 132; first control valve 140; first pin 141; second control valve 150; second pin 151; pipe plug 152; mixing chamber 160; stirring member 170; first cone 171; second cone 172; notch 173; annular groove 174. DETAILED DESCRIPTION

[0031] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0032] In the description of the present application, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0033] In the description of this application, "several" means more than one, "more" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0034] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0035] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0036] Reference Figures 1 to 8 The embodiment of the present application provides a mixing valve, including a body 100 and a stirring shaft 131. The body 100 is provided with a mixing chamber 160, an oil storage chamber 102 and a sealing chamber 107. The outer wall of the body 100 is provided with an observation groove 104. The observation groove 104 is arranged on one side of the oil storage chamber 102 and is connected with the oil storage chamber 102. The sealing chamber 107 is located between the oil storage chamber 102 and the mixing chamber 160; the stirring shaft 131 is sequentially penetrated through the oil storage chamber 102, the sealing chamber and the mixing chamber 160. The stirring shaft 131 is sleeved with a plurality of sealing members 132, and the sealing members 132 are located in the sealing chamber. The oil storage chamber 102 is used to fill lubricating oil. When in use, the stirring shaft 131 is driven to rotate so that the stirring shaft 131 stirs the glue in the mixing chamber 160. During use, if the mixed glue penetrates the seal 132, the color of the lubricating oil in the oil storage chamber 102 will change when the mixed glue contacts the lubricating oil in the oil storage chamber 102. Since the observation groove 104 is connected to the oil storage chamber 102, it is possible to observe whether the color of the lubricating oil in the oil storage chamber 102 changes through the observation groove 104, thereby determining whether the mixed glue has penetrated the seal 132 without disassembly inspection.

[0037] In one embodiment, a bottom wall of the observation slot 104 is provided with a through hole 1042 , and the observation slot 104 is connected to the oil storage chamber 102 through the through hole 1042 , so that the color of the lubricating oil in the oil storage chamber 102 can be observed by observing the observation slot 104 to see whether it changes.

[0038] In one embodiment, the mixing valve of the embodiment of the present application further includes a driving member 130, which is disposed on the body 100, and the driving member 130 is connected to the stirring shaft 131. The driving member 130 is a driving motor, which is used to drive the stirring shaft 131 to rotate. An observation groove 104 is opened from the side wall of the oil storage chamber 102, so that the color of the lubricating oil located in the observation groove 104 can be observed through the observation groove 104. The lubricating oil is used to reduce the friction between the stirring shaft 131 and the sealing member 132 when the stirring shaft 131 rotates, and plays a role in protecting the stirring shaft 131 and the sealing member 132. The sealing member 132 is used to seal the sealing cavity, and is used to prevent the mixed glue from entering the oil storage cavity 102.

[0039] In one embodiment, referring to Figure 3and Figure 4 The main body 100 is provided with a partition 103 between the oil storage chamber 102 and the sealing chamber. The partition 103 is provided with a first through hole 108. The cross-sectional area of ​​the first through hole 108 is smaller than the cross-sectional area of ​​the sealing chamber. The oil storage chamber 102 and the sealing chamber are connected through the first through hole 108. The stirring shaft 131 is passed through the first through hole 108, and the sealing member 132 abuts against the partition 103. Since the cross-sectional area of ​​the first through hole 108 is smaller than the cross-sectional area of ​​the sealing chamber, and the sealing member 132 abuts against the partition 103, the area of ​​the first through hole 108 is smaller than the cross-sectional area of ​​the sealing chamber, and the partition 103 can prevent the sealing member 132 from entering the oil storage chamber 102.

[0040] In one embodiment, referring to Figures 1 to 4 The mixing valve of the embodiment of the present application further includes a transparent cover plate 105, which is engaged with the observation slot 104. In one embodiment, the side wall of the open end of the observation slot 104 is recessed to form a groove 1041, and the transparent cover plate 105 is engaged with the groove 1041. The transparent cover plate 105 is used to seal the observation slot 104 to prevent dust from falling from the observation slot 104 into the oil storage chamber 102, and because the transparent cover plate 105 is transparent, the transparent cover plate 105 will not hinder the user from observing the color of the lubricating oil in the oil storage chamber 102.

[0041] In one embodiment, the transparent cover plate 105 is a glass plate.

[0042] In one embodiment, the mixing valve further includes a pressing plate 106, which is detachably mounted on the outer side wall of the body 100, and a transparent cover plate 105 is located between the pressing plate 106 and the body 100, and the pressing plate is provided with an observation port, which is opposite to the observation slot 104. For example, the pressing plate 106 is fixed to the body 100 by a fastener, which may be a screw, and the pressing plate 106 can press the transparent cover plate 105 onto the body 100, so that the transparent cover plate 105 is relatively fixed. Since the observation port is opposite to the observation slot 104, the observation slot 104 can be observed through the observation port, thereby observing the color of the lubricating oil in the oil storage chamber 102.

[0043] In one embodiment, referring to Figure 5 to Figure 6 The interior of the main body 100 is also provided with a plurality of glue injection channels 120 and a plurality of cleaning liquid injection channels 110, the glue injection channels 120 correspond to the cleaning liquid injection channels 110 one by one, one end of the glue injection channel 120 is connected to the mixing chamber 160, and the other end is connected to the outside of the main body 100; one end of the cleaning liquid injection channel 110 is connected to the corresponding glue injection channel 120, and the other end is connected to the outside of the main body 100; the mixing valve also includes a plurality of first control valves 140.

[0044] In one embodiment, the mixing valve further includes a plurality of second control valves 150, a plurality of first control valves 140 are all installed on the body 100, the first control valves 140 are connected to the cleaning liquid injection channels 110 in a one-to-one correspondence, and the first control valves 140 are used to control the corresponding cleaning liquid injection channels 110 to be cut off or conducted. The second control valves 150 are in a one-to-one correspondence with the glue injection channels 120, a plurality of second control valves 150 are all installed on the body 100, and the second control valves 150 are used to control the corresponding glue injection channels 120 to be cut off or conducted.

[0045] When it is necessary to mix glue, the corresponding cleaning liquid injection channel 110 is controlled to be cut off by the first control valve 140, and the end of the glue injection channel 120 connected to the outside of the main body 100 is used to connect glue. Different glue injection channels 120 can connect different glues. The second control valve 150 makes the corresponding glue injection channel 120 conductive, so that each glue injection channel 120 can guide the external glue to the mixing chamber 160, mix it in the mixing chamber 160, and drive the stirring shaft 131 to rotate through the driving member 130 to mix the glue in the mixing chamber 160. After the mixing valve is used, when there is no need to mix glue, the second control valve 150 controls the corresponding glue injection channel 120 to be cut off, and the end of the cleaning liquid injection channel 110 connected to the outside of the body 100 is used to connect the cleaning liquid, and the first control valve 140 is controlled to make the corresponding cleaning liquid injection channel 110 conductive, so that the cleaning liquid flows into the glue injection channel 120, and then flows into the mixing chamber 160 along the glue injection channel 120. In this way, the cleaning liquid can clean the glue injection channel 120 and the mixing chamber 160 to prevent glue from condensing in the mixing valve body. Therefore, the mixing valve of the embodiment of the present application can timely clean the channel for glue flow in the mixing valve to prevent glue from condensing in the mixing valve body.

[0046] It should be noted that the cleaning liquid can be clean water or other liquids used for cleaning.

[0047] In one embodiment, referring to Figure 5 to Figure 6 , the mixing valve is used to mix the two glues, then the number of the glue injection channels 120, the number of the cleaning liquid injection channels 110 and the number of the first control valves 140 are all 2. The mixing chamber 160 is located at the bottom of the body 100, the two glue injection channels 120 are located above the mixing chamber 160, and the two glue injection channels 120 are symmetrically arranged, one opening of the glue injection channel 120 is arranged on the side wall of the body 100 for receiving glue, and the other opening of the glue injection channel 120 is located inside the body 100 for communicating with the mixing chamber 160. The two cleaning liquid injection channels 110 are located above the mixing chamber 160, and the two cleaning liquid injection channels 110 are symmetrically arranged, one opening of the cleaning liquid injection channel 110 is located on the side wall of the body 100 for receiving cleaning liquid, and the other opening of the cleaning liquid injection channel 110 is arranged on the side wall of the corresponding glue injection channel 120 for communicating with the glue injection channel 120.

[0048] In one embodiment, referring to Figure 5 The first control valve 140 is provided with a first needle 141. The first control valve 140 is a pneumatic needle valve or an electric needle valve. The first control valve 140 can drive the first needle 141 to cut off or open the corresponding cleaning liquid injection channel 110.

[0049] In one embodiment, referring to Figure 6 The second control valve 150 is provided with a second plug needle 151. The second control valve 150 may be a pneumatic needle valve or an electric needle valve. The second control valve 150 may drive the second plug needle 151 to cut off or open the corresponding glue injection channel 120.

[0050] In one embodiment, referring to Figure 6 , the glue injection channel 120 includes a second through hole 121, a first channel section 122 and a second channel section 123, the first channel section 122 and the second channel section 123 are connected through the second through hole 121, and the second control valve 150 is used to drive the second pin 151 to be inserted into or away from the second through hole 121 of the corresponding glue injection channel 120, so that the second through hole 121 is cut off or turned on. Specifically, the first channel section 122 is connected to the outside of the body 100, and the second channel section 123 is connected to the mixing chamber 160. When the second control valve 150 drives the second pin 151 away from the second through hole 121 of the corresponding glue injection channel 120, the second through hole 121 is turned on, and the first channel section 122 and the second channel section 123 are connected, and the glue can flow through the first channel section 122, the second through hole 121, and the second channel section 123 in sequence and then flow into the mixing chamber 160. When the second control valve 150 drives the second insertion needle 151 to insert into the second through hole 121 of the corresponding glue injection channel 120 , the second through hole 121 is blocked, and the first channel section 122 and the second channel section 123 are blocked.

[0051] In one embodiment, referring to Figure 6 , the cross-sectional area of ​​the second through hole 121 is larger than the cross-sectional area of ​​the second plug 151, so the second plug 151 cannot block the second through hole 121 of the glue injection channel 120, so a plug 152 is sleeved at the bottom of the second plug 151, and the plug 152 is used to open or block the first through hole 121. Exemplarily, the cross-sectional area of ​​the plug 152 matches the cross-sectional area of ​​the glue injection channel 120, and when the second plug 151 drives the plug 152 to insert into the corresponding second through hole 121 of the glue injection channel 120, the glue injection channel 120 can be blocked.

[0052] In one embodiment, the cleaning liquid injection channel 110 includes a third through hole 111, a third channel section 112 and a fourth channel section 113. The third channel section 112 is connected to the outside of the body 100 for receiving cleaning liquid. The fourth channel section 113 is connected to the corresponding glue injection channel 120. The third channel section 112 and the fourth channel section 113 are connected through the third through hole 111. When the cleaning liquid needs to be injected, the first control valve 140 drives the first pin 141 away from the third through hole 111 of the corresponding cleaning liquid injection channel 110, and the third through hole 111 is turned on, so that the third channel section 112 and the fourth channel section 113 are turned on, so that the cleaning liquid flows through the third channel section 112, the third through hole 111 and the fourth channel section 113 in sequence and flows into the corresponding glue injection channel 120. When cleaning is not required, the first control valve 140 drives the first insertion needle 141 to insert into the corresponding third through hole 111 of the cleaning liquid injection channel 110, and the third through hole 111 is blocked, so that the third channel section 112 and the fourth channel section 113 are blocked.

[0053] In one embodiment, the mixing valve of the present application further comprises a stirring member 170, which is disposed in the mixing chamber 160, and the stirring member 170 is fixedly connected to the stirring shaft 131, and the driving member 130 is used to drive the stirring shaft 131 to drive the stirring member 170 to rotate. Figure 2 and Figure 3 The driving member 130 is arranged inside the main body 100, the mixing chamber 160 is arranged below the driving motor, and the glue injection channel 120 and the cleaning liquid injection channel 110 are arranged on the surrounding side of the driving member 130. The driving member 130 is used to drive the stirring shaft 131 to drive the stirring member 170 to rotate. When the stirring member 170 rotates, the glue in the mixing chamber 160 is stirred to help mix various glues.

[0054] In one embodiment, referring to Figures 6 to 8 The stirring member 170 is cylindrical, and a plurality of notches 173 are provided on the sidewall of the stirring member 170. The plurality of notches 173 are spaced apart along the circumference of the stirring member 170, and the notches 173 penetrate the stirring member 170 along the axial direction of the stirring member 170. The stirring member 170 is cylindrical, and the shape of the mixing chamber 160 is also cylindrical. The volume of the mixing chamber 160 is slightly larger than that of the stirring member 170. The plurality of notches 173 facilitate the flow of glue in the mixing chamber 160, and help stir and mix the glue.

[0055] In one embodiment, referring to Figure 6 and Figure 7 The side wall of the stirring member 170 is provided with a plurality of annular grooves 174, and the plurality of annular grooves 174 are spaced apart along the axial direction of the stirring member 170. The plurality of annular grooves 174 can divide the stirring member 170 into a plurality of stirring blades spaced apart along the axial direction of the stirring member 170, thereby facilitating the mixing of the glue, so that the glue is mixed more fully in the mixing chamber 160.

[0056] In one embodiment, referring to Figures 6 to 8 The first cone 171 is provided on the side of the stirring member 170 opposite to the glue injection channel 120, and the cross-sectional area of ​​the first cone 171 gradually decreases in the direction close to the glue injection channel 120; the second cone 172 is provided on the side of the stirring member 170 away from the glue injection channel 120, and the cross-sectional area of ​​the second cone 172 gradually decreases in the direction away from the glue injection channel 120. The first cone 171 is opposite to each glue injection channel 120, and the glue in the glue injection channel 120 flows along the first cone 171 to the notch 173 of the stirring member 170, which helps the glue flow in the mixing chamber 160, thereby helping the glue to mix. The second cone 172 facilitates the mixed glue to flow to the bottom of the mixing chamber 160.

[0057] In one embodiment, referring to Figure 1 The side wall of the mixing chamber 160 is provided with a plurality of protruding columns 101 protruding toward the stirring member 170, and the protruding columns 101 are located in the annular groove 174. During the rotation of the stirring member 170, the protruding columns 101 are located in the annular groove 174 so that the protruding columns 101 do not hinder the rotation of the stirring member 170. When the stirring member 170 drives the glue to rotate, the glue collides with the protruding columns 101, generating agitation, which helps to mix the glue.

[0058] The embodiments of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the purpose of the present application. In addition, the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

Claims

1. A mixing valve, characterized in that: include: A body, wherein the body is provided with a mixing chamber, an oil storage chamber and a sealing chamber, an outer side wall of the body is provided with an observation groove, the observation groove is arranged on one side of the oil storage chamber, and the observation groove is communicated with the oil storage chamber, and the sealing chamber is located between the oil storage chamber and the mixing chamber; A stirring shaft, wherein the stirring shaft is sequentially inserted into the oil storage chamber, the sealing chamber and the mixing chamber, the stirring shaft sleeve is provided with a plurality of sealing members, and the sealing members are located in the sealing chamber, and the oil storage chamber is used for filling lubricating oil.

2. The mixing valve according to claim 1, characterized in that: The main body is provided with a partition, and the partition is located between the oil storage chamber and the sealing chamber. The partition is provided with a first through hole, and the cross-sectional area of ​​the first through hole is smaller than the cross-sectional area of ​​the sealing chamber. The oil storage chamber and the sealing chamber are connected through the first through hole, and the stirring shaft is passed through the first through hole. The sealing member abuts against the partition.

3. The mixing valve according to claim 1, characterized in that It also includes a transparent cover plate, which is engaged with the observation slot.

4. The mixing valve according to claim 3, characterized in that: The side wall of the open end of the observation slot is recessed to form a groove, and the transparent cover plate is engaged in the groove.

5. The mixing valve according to claim 3, characterized in that: It also includes a pressing plate, which is detachably mounted on the outer side wall of the main body. The transparent cover is located between the pressing plate and the main body, and the pressing plate is provided with an observation port, which is opposite to the observation slot.

6. The mixing valve according to claim 1, characterized in that The body is also provided with a plurality of glue injection channels and a plurality of cleaning liquid injection channels, the glue injection channels correspond to the cleaning liquid injection channels one by one, one end of the glue injection channel is connected to the mixing chamber, and the other end is connected to the outside of the body; one end of the cleaning liquid injection channel is connected to the corresponding glue injection channel, and the other end is connected to the outside of the body; The mixing valve also includes a plurality of first control valves, all of which are installed on the body. The first control valves are connected to the cleaning fluid injection channels in a one-to-one correspondence, and the first control valves are used to control the corresponding cleaning fluid injection channels to be cut off or connected.

7. The mixing valve according to claim 6, characterized in that It also includes a stirring member, which is movably arranged in the mixing chamber and fixedly connected to the stirring shaft.

8. The mixing valve according to claim 7, characterized in that The side wall of the stirring member is provided with a plurality of notches, the plurality of notches are distributed at intervals along the circumference of the stirring member, and the notches penetrate the stirring member along the axial direction of the stirring member.

9. The mixing valve according to claim 7, characterized in that: The side wall of the stirring member is provided with a plurality of annular grooves, and the plurality of annular grooves are distributed at intervals along the axial direction of the stirring member.

10. The mixing valve according to claim 7, characterized in that A first cone is provided on a side of the stirring member opposite to the glue injection channel, and a cross-sectional area of ​​the first cone gradually decreases in a direction approaching the glue injection channel; A second cone portion is provided on a side of the stirring member away from the glue injection channel, and a cross-sectional area of ​​the second cone portion gradually decreases in a direction away from the glue injection channel.

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