Double-shaft efficient mixing device for processing pavement marking coating

By designing a biaxial efficient mixing device, using a biaxial mixing rod and cutting assembly, the problem of solidification and uneven mixing of road marking paint under low temperature conditions is solved, and the uniform mixing and fluidity of the paint is achieved.

CN222518416UActive Publication Date: 2025-02-25HEBEI BROTHERS ROAD SIGN TECH CO LTD
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Patent Information

Application Number
CN202421318238.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-11
Publication Date
2025-02-25
Estimated Expiration
2034-06-11

AI Technical Summary

Technical Problem

Under low temperature conditions, the road marking coating is prone to excessive solidification, resulting in difficulty in stirring and uneven coating. In the prior art, the length of the stirring rod is not suitable, resulting in uneven stirring.

Method used

A biaxial efficient mixing device is designed, including a stirring assembly and a cutting assembly. The stirring assembly is uniformly stirred through a biaxial stirring rod and a friction wheel drive belt, and the cutting assembly is cut and beaten through a cutting knife to cut and break the solidified raw material.

Benefits of technology

It effectively avoids the solidification of raw materials under low temperature conditions, realizes uniform stirring and cutting of raw materials, and ensures the fluidity and uniformity of the coating.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of mixing, and provides a double-shaft efficient mixing device for processing pavement marking paint, which comprises a support leg, a mixing chamber, a feeding cylinder, a stirring component, a cutting component and a positioning component, the mixing chamber is fixedly mounted on the support leg, and the feeding cylinder is fixedly mounted on the mixing chamber. The feeding cylinder is fixedly installed at the top end of the mixing chamber in a penetrating mode, the stirring assembly is arranged in the mixing chamber, the cutting assembly is arranged on the stirring assembly, a bevel gear I is rotated by rotating a transmission shaft, so that a bevel gear II and a connecting shaft are driven to rotate, then a cutting knife is rotated to be vertical or horizontal, and under rotation of a stirring shaft I and a stirring shaft II, the cutting knife rotates to be vertical or horizontal. The cutting knife is used for cutting the raw materials, and the positioning assembly is arranged on the mixing chamber. By means of the technical scheme, the problem that in the prior art, when the temperature is low, if internal materials are solidified, a stirring rod is difficult to effectively mix and stir the internal materials is solved.
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Description

Technical Field

[0001] The utility model relates to the technical field of mixing, in particular to a double-shaft high-efficiency mixing device for processing road marking paint. Background Art

[0002] Road marking paint is a paint applied on the road to mark the road. The road marking paint is a fixed powder at room temperature. During processing, the paint is put into a reactor and stirred while melting. After it melts to a fluid state, the reacted paint is poured into a marking vehicle for marking. During the reaction, when the ambient temperature is low or the weather temperature is low, the raw materials may be over-solidified at low temperatures, making them harder and causing difficulties in stirring. In addition, when the paint is hard, it is difficult to apply it to the road.

[0003] A search for the above-mentioned problem revealed that in the currently disclosed prior art, there is a mixing device for processing traffic road marking paint proposed in publication number CN220443609U. The device installs heating tubes on both sides of a stirring rod. If the temperature is low, the internal material can be heated by the heating tubes to increase its internal temperature, so that the material will not solidify into blocks and maintain its fluidity. However, during stirring, if the stirring rod is too long, it may touch the heating rods on both sides. If the stirring rod is too short, the stirring rod may not touch the raw materials on the side end of the reactor, resulting in uneven stirring of the raw materials. Utility Model Content

[0004] The utility model provides a double-shaft high-efficiency mixing device for road marking paint processing, which solves the problem in the related art that when the temperature is low and the internal material solidifies, it is difficult for the stirring rod to effectively mix and stir it.

[0005] The technical solution of the utility model is as follows:

[0006] A dual-axis high-efficiency mixing device for road marking paint processing includes a support leg and a mixing chamber, wherein the mixing chamber is fixedly mounted on the support leg, and further includes a feed barrel, a stirring assembly, a cutting assembly and a positioning assembly. The feed barrel passes through and is fixedly mounted on the top of the mixing chamber, the stirring assembly is arranged inside the mixing chamber, the stirring assembly is used to mix the raw materials in the mixing chamber, the cutting assembly is arranged on the stirring assembly, the cutting assembly is used to cut and break up the solidified raw materials in the mixing chamber, and the positioning assembly is arranged on the mixing chamber, and the positioning assembly is used to place the cutting assembly horizontally.

[0007] Furthermore, the stirring assembly includes a stirring shaft 1, a motor, a stirring rod 1, a stirring shaft 2, a stirring rod 2, a friction wheel and a transmission belt. The stirring shaft 1 is rotatably installed in the mixing chamber, the motor is installed at the top of the mixing chamber, and the output end of the motor passes through the top of the mixing chamber, and the output end of the motor is fixedly connected to the stirring shaft 1. The stirring rod 1 is provided in a plurality of numbers, and the stirring rod 1 is fixedly installed on the stirring shaft 1. The stirring shaft 2 is rotatably installed in the mixing chamber, the stirring rod 2 is provided in a plurality of numbers, and the stirring rod 2 is fixedly installed on the stirring shaft 2. The friction wheels are provided in two numbers, and two friction wheels are fixedly installed on the stirring shaft 1 and the stirring shaft 2. The stirring shaft 1 and the stirring shaft 2 pass through the friction wheels, and the transmission belt is tensioned and sleeved with the two friction wheels.

[0008] Furthermore, the cutting assembly includes a transmission shaft, a bevel gear 1, a connecting shaft, a bevel gear 2 and a cutting knife, the transmission shaft is provided in two numbers, and the two transmission shafts are rotatably installed inside the stirring shaft 1 and the stirring shaft 2, the bevel gear 1 is provided in multiple numbers, the bevel gear 1 is fixedly installed on the transmission shaft, and the transmission shaft passes through the bevel gear 1, the connecting shaft is provided in multiple numbers, and the connecting shaft passes through and is rotatably installed on the sides of the stirring shaft 1 and the stirring shaft 2, the bevel gear 2 is fixedly installed on the connecting shaft, and the bevel gear 2 is meshed with the bevel gear 1, the cutting knife is provided in multiple numbers, and the cutting knife is fixedly connected to the connecting shaft.

[0009] Furthermore, the positioning assembly includes a positioning frame, a positioning rod 1, a positioning rod 2 and a limit block. The positioning frame is provided in two numbers, the positioning frame is fixedly installed on the mixing chamber, and the top and side of the positioning frame are provided with limit holes. The positioning rod 1 is provided in two numbers, the positioning rod 1 is slidably installed on the positioning frame, and the positioning rod 1 is provided with a plurality of limit holes. The positioning rod 2 is provided in two numbers, the positioning rod 2 is slidably installed on the positioning frame, and the positioning rod 2 is provided with a plurality of limit holes, and the limit block is adapted to the limit holes.

[0010] Furthermore, a plurality of the stirring rods 1 and a plurality of the stirring rods 2 are grouped in pairs, and each group of the stirring rods 1 and the stirring rods 2 is located on the side of the stirring shaft 1 and the stirring shaft 2.

[0011] Furthermore, the stirring rods 1 and 2 are placed alternately, so that each group of stirring rods 1 is located in the middle of each adjacent group of stirring rods 2.

[0012] Furthermore, the number of the cutting knives is less than the number of the stirring rod 1 and the stirring rod 2, and the cutting knives and the stirring rod 1 and the stirring rod 2 are located at the same horizontal position.

[0013] Furthermore, positioning holes are provided at the top and side of the cutting knife, and the positioning holes at the top and side of the cutting knife correspond to the limiting holes of the positioning frame.

[0014] Furthermore, when the cutting knife is placed horizontally, positioning rod one can be inserted into the positioning hole at the top of the cutting knife, and the limiting hole of positioning rod one corresponds to the top of the positioning frame. When the cutting knife is placed vertically, positioning rod two can be inserted into the positioning hole on the side of the cutting knife, and the limiting hole of positioning rod two corresponds to the limiting hole on the side of the positioning frame.

[0015] Furthermore, a valve is installed through the bottom end of the mixing chamber.

[0016] The working principle and beneficial effects of the utility model are:

[0017] 1. In the utility model, the cutting assembly can be used to rotate the cutting knife to cut the solidified material in the mixing chamber, so as to separate it, thereby avoiding the situation that when the temperature is low, the raw materials can be cut and scattered after solidification, so as to mix them again;

[0018] 2. In the present invention, the material in the mixing chamber can be uniformly stirred by the stirring assembly, and the cutting assembly can be driven to cut the solidified raw materials in the mixing chamber;

[0019] In summary, the device can stir and cut the materials in the mixing chamber through the cooperation between the legs, the mixing chamber, the feed barrel, the stirring assembly, the cutting assembly and the positioning assembly, thereby avoiding solidification of the raw materials at low temperatures. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a partial cross-sectional view of the mixing chamber of the utility model and a structural schematic diagram of the stirring assembly;

[0023] Figure 3 It is a structural schematic diagram of the cutting assembly of the utility model;

[0024] Figure 4 It is a structural schematic diagram of the positioning component of the utility model;

[0025] Figure 5 For this utility model Figure 3 A local enlarged schematic diagram of point A in the middle.

[0026] In the figure: 1. Support leg; 2. Mixing chamber; 3. Feed barrel; 4. Turning handle; 5. Valve; 101. Stirring shaft one; 102. Motor; 103. Stirring rod one; 104. Stirring shaft two; 105. Stirring rod two; 106. Friction wheel; 107. Transmission belt; 201. Transmission shaft; 202. Bevel gear one; 203. Connecting shaft; 204. Bevel gear two; 205. Cutting knife; 301. Positioning frame; 302. Positioning rod one; 303. Positioning rod two; 304. Limit block. DETAILED DESCRIPTION

[0027] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] like Figure 1~Figure 5 As shown, this embodiment proposes a dual-axis high-efficiency mixing device for road marking paint processing, including a support leg 1 and a mixing chamber 2. The mixing chamber 2 is fixedly installed on the support leg 1 and also includes a feed barrel 3, a stirring assembly, a cutting assembly and a positioning assembly. The feed barrel 3 passes through and is fixedly installed on the top of the mixing chamber 2. The stirring assembly is arranged inside the mixing chamber 2. The stirring assembly is arranged inside the mixing chamber 2. The stirring assembly is used to mix the raw materials in the mixing chamber 2. The cutting assembly is arranged on the stirring assembly. The cutting assembly is used to cut and break up the solidified raw materials in the mixing chamber 2. The positioning assembly is arranged on the mixing chamber 2. The positioning assembly is arranged on the mixing chamber 2. The positioning assembly is used to place the cutting assembly horizontally.

[0029] In this embodiment, the stirring assembly includes a stirring shaft 101, a motor 102, a stirring rod 103, a stirring shaft 104, a stirring rod 105, a friction wheel 106 and a transmission belt 107. The stirring shaft 101 is rotatably installed in the mixing chamber 2, the motor 102 is installed at the top of the mixing chamber 2, and the output end of the motor 102 passes through the top of the mixing chamber 2, and the output end of the motor 102 is fixedly connected to the stirring shaft 101, the stirring rod 103 is set to a plurality of, and the stirring rod 103 is fixedly installed on the stirring shaft 101, the stirring shaft 104 is rotatably installed in the mixing chamber 2, the stirring rod 105 is set to a plurality of, and the stirring rod 105 is fixedly installed on the stirring shaft 101. 5 is fixedly mounted on the stirring shaft 104, two friction wheels 106 are provided, and the two friction wheels 106 are fixedly mounted on the stirring shaft 101 and the stirring shaft 104, the stirring shaft 101 and the stirring shaft 104 pass through the friction wheels 106, the transmission belt 107 is tightly sleeved with the two friction wheels 106, the motor 102 drives the stirring shaft 101 to rotate, the stirring shaft 101 drives one of the friction wheels 106 to rotate, and under the action of the transmission belt 107, the other friction wheel 106 is rotated, and the stirring shaft 104 is driven to rotate while the heat is hot, thereby driving the stirring rod 103 and the stirring rod 105 to rotate, and stirring the raw materials in the mixing chamber 2.

[0030] In this embodiment, the cutting assembly includes a transmission shaft 201, a bevel gear 1 202, a connecting shaft 203, a bevel gear 204 and a cutting knife 205. The transmission shaft 201 is provided in two, and the two transmission shafts 201 are rotatably mounted inside the stirring shaft 101 and the stirring shaft 2 104. The bevel gear 1 202 is provided in a plurality, and the bevel gear 1 202 is fixedly mounted on the transmission shaft 201, and the transmission shaft 201 passes through the bevel gear 1 202. The connecting shaft 203 is provided in a plurality, and the connecting shaft 203 passes through and is rotatably mounted on the stirring shaft 101 and the stirring shaft 1 On the side of the mixing shaft 104, the bevel gear 204 is fixedly mounted on the connecting shaft 203, and the bevel gear 204 is meshed with the bevel gear 1 202. A plurality of cutting knives 205 are provided, and the cutting knives 205 are fixedly connected to the connecting shaft 203. By rotating the transmission shaft 201, the bevel gear 1 202 is rotated, thereby driving the bevel gear 204 and the connecting shaft 203 to rotate, and then the cutting knives 205 are rotated to vertical or horizontal. Under the rotation of the mixing shaft 101 and the mixing shaft 2 104, the cutting knives 205 cut the raw materials.

[0031] In this embodiment, the positioning assembly includes a positioning frame 301, a positioning rod 1 302, a positioning rod 2 303 and a limit block 304. The positioning frame 301 is provided in two numbers. The positioning frame 301 is fixedly installed on the mixing chamber 2, and limit holes are provided on the top and side of the positioning frame 301. The positioning rod 1 302 is provided in two numbers. The positioning rod 1 302 is slidably installed on the positioning frame 301, and a plurality of limit holes are provided on the positioning rod 1 302. The positioning rod 2 303 is provided in two numbers. The positioning rod 2 303 is slidably installed on the positioning frame 301, and a plurality of limit holes are provided on the positioning rod 2 303. The limit block 304 is adapted to the limit hole. By rotating the cutting knife 205 to a horizontal or vertical position, and then moving the positioning rod 1 302 and the positioning rod 2 303, inserting them into the positioning hole of the cutting knife 205, they are positioned.

[0032] In this embodiment, the plurality of stirring rods 103 and the plurality of stirring rods 105 are grouped in pairs, and each group of stirring rods 103 and stirring rods 105 is located on the side of the stirring shaft 1 101 and the stirring shaft 2 104 .

[0033] In this embodiment, stirring rod 1 103 and stirring rod 2 105 are placed alternately so that each group of stirring rod 103 is located in the middle position of each adjacent group of stirring rod 2 105, so that when stirring shaft 101 and stirring shaft 2 104 rotate, stirring rod 1 103 and stirring rod 2 105 will not collide with each other.

[0034] In this embodiment, the number of the cutting knives 205 is less than the number of the stirring rod 1 103 and the stirring rod 2 105 , and the cutting knives 205 and the stirring rod 1 103 and the stirring rod 2 105 are located at the same horizontal position.

[0035] In this embodiment, positioning holes are provided at the top and side of the cutting blade 205 , and the positioning holes at the top and side of the cutting blade 205 correspond to the limiting holes of the positioning frame 301 .

[0036] In this embodiment, when the cutting knife 205 is placed horizontally, the positioning rod 1 302 can be inserted into the positioning hole at the top of the cutting knife 205, and the limiting hole of the positioning rod 1 302 corresponds to the top of the positioning frame 301. When the cutting knife 205 is placed vertically, the positioning rod 2 303 can be inserted into the positioning hole on the side of the cutting knife 205, and the limiting hole of the positioning rod 2 303 corresponds to the limiting hole on the side of the positioning frame 301.

[0037] In this embodiment, a valve 5 is installed through the bottom end of the mixing chamber 2. After the stirring and mixing is completed, the valve 5 can be opened to allow the liquid to flow out.

[0038] In this embodiment, when the device is mixing the coating, firstly, multiple raw materials are poured into the mixing chamber 2 through the feed barrel 3, and then the motor 102 is started, the motor 102 drives the stirring shaft 101 to rotate, the stirring shaft 101 drives one of the friction wheels 106 to rotate, the friction wheel 106 drives the transmission belt 107 to drive, and then the transmission belt 107 drives another friction wheel 106 to rotate, so that the stirring shaft 2 104 rotates, and finally drives the stirring rod 103 and the stirring rod 2 105 to rotate, so as to stir the mixing chamber 2. The raw materials are mixed and processed. If the raw materials solidify at a low temperature, the motor 102 can be stopped. It should be added that the transmission shaft 201 passes through the bottom end of the mixing chamber 2, and a turning handle 4 is fixedly installed at the bottom end of the transmission shaft 201. The transmission shaft 201 is rotated by turning the turning handle 4, and the transmission shaft 201 drives the bevel gear 1 202 to rotate. The bevel gear 1 202 drives the bevel gear 2 204 and the connecting shaft 203 to rotate, so that the cutting knife 205 is rotated to a horizontal position, and then the positioning rod 1 302 is pushed to insert it into the mixing chamber 2. The cutting knife 205 is placed in the positioning hole of the cutting knife 205, and the cutting knife 205 is placed horizontally at this time. Then the positioning rod 1 302 is moved upward, and the limiting hole block is inserted into the limiting hole for fixing. Then the motor 102 is started again to rotate the stirring shaft 101 and the stirring shaft 2 104, thereby driving the cutting knife 205 to rotate, cut the raw materials and break them up. After the cutting is completed, the turning handle 4 is turned again to rotate the cutting knife 205 to the vertical position. It should be added that when the cutting knife 205 is in the vertical position, the stirring shaft 101 and the stirring shaft 2 104 are turned. The cutting knife 205 on 1 is located between each group of adjacent stirring rods 2 105, and the cutting knife 205 on the stirring shaft 2 104 is located between each group of adjacent stirring rods 1 103. When the cutting knife 205 is in the vertical position, the positioning rod 2 303 is moved again. If it is inserted into the positioning hole of the cutting knife 205, the cutting knife 205 is in the vertical position at this time, and then the positioning rod 2 303 is moved back, and the limit block 304 is inserted into the limit hole to fix it, and then stirring is performed again. After the stirring and mixing is completed, the valve 5 is opened to allow it to flow out.

[0039] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A dual-shaft high-efficiency mixing device for road marking paint processing, comprising a support leg (1) and a mixing chamber (2), wherein the mixing chamber (2) is fixedly mounted on the support leg (1), and is characterized in that: Also includes: A feeding cylinder (3), the feeding cylinder (3) being fixedly mounted through the top of the mixing chamber (2); A stirring component, the stirring component is arranged inside the mixing chamber (2), and the stirring component is used to mix the raw materials in the mixing chamber (2); A cutting assembly, the cutting assembly being arranged on the stirring assembly, the cutting assembly being used to cut and break up the solidified raw materials in the mixing chamber (2); A positioning component, the positioning component is arranged on the mixing chamber (2), and the positioning component is used to place the cutting component horizontally.

2. A dual-shaft high-efficiency mixing device for road marking paint processing according to claim 1, characterized in that: The stirring assembly comprises: A stirring shaft 1 (101), the stirring shaft 1 (101) being rotatably mounted in the mixing chamber (2); a motor (102), the motor (102) being mounted at the top of the mixing chamber (2), and the output end of the motor (102) passing through the top of the mixing chamber (2), and the output end of the motor (102) being fixedly connected to the stirring shaft (101); A stirring rod 1 (103), wherein the stirring rod 1 (103) is provided in a plurality and the stirring rod 1 (103) is fixedly mounted on the stirring shaft 1 (101); A second stirring shaft (104), the second stirring shaft (104) being rotatably mounted in the mixing chamber (2); A second stirring rod (105), wherein the second stirring rod (105) is provided in a plurality and the second stirring rod (105) is fixedly mounted on the second stirring shaft (104); Friction wheels (106), wherein two friction wheels (106) are provided, and the two friction wheels (106) are fixedly mounted on the first stirring shaft (101) and the second stirring shaft (104), and the first stirring shaft (101) and the second stirring shaft (104) pass through the friction wheels (106); A transmission belt (107), wherein the transmission belt (107) is tensionedly sleeved on the two friction wheels (106).

3. A dual-shaft high-efficiency mixing device for road marking paint processing according to claim 2, characterized in that: The cutting assembly comprises: A transmission shaft (201), wherein two transmission shafts (201) are provided, and the two transmission shafts (201) are rotatably mounted inside the first stirring shaft (101) and the second stirring shaft (104); Bevel gear one (202), wherein the bevel gear one (202) is provided in a plurality, the bevel gear one (202) is fixedly mounted on the transmission shaft (201), and the transmission shaft (201) passes through the bevel gear one (202); A connecting shaft (203), wherein the connecting shaft (203) is provided in a plurality, and the connecting shaft (203) is rotatably mounted on the side surfaces of the first stirring shaft (101) and the second stirring shaft (104); Bevel gear 2 (204), wherein the bevel gear 2 (204) is fixedly mounted on the connecting shaft (203), and the bevel gear 2 (204) is meshed with the bevel gear 1 (202); A cutting knife (205), wherein a plurality of the cutting knives (205) are provided, and the cutting knife (205) is fixedly connected to the connecting shaft (203).

4. A dual-shaft high-efficiency mixing device for road marking paint processing according to claim 3, characterized in that: The positioning component comprises: A positioning frame (301), wherein two positioning frames (301) are provided, the positioning frames (301) are fixedly mounted on the mixing chamber (2), and limiting holes are provided on the top and side surfaces of the positioning frames (301); Positioning rods (302), two of which are provided, and the positioning rods (302) are slidably mounted on the positioning frame (301), and a plurality of limiting holes are provided on the positioning rods (302); A second positioning rod (303), wherein two of the second positioning rods (303) are provided, and the second positioning rods (303) are slidably mounted on the positioning frame (301), and a plurality of limiting holes are provided on the second positioning rod (303); A limiting block (304), the limiting block (304) being adapted to the limiting hole.

5. A dual-shaft high-efficiency mixing device for road marking paint processing according to claim 4, characterized in that: A plurality of stirring rods 1 (103) and a plurality of stirring rods 2 (105) are arranged in pairs in a group, and each group of stirring rods 1 (103) and stirring rods 2 (105) is located on the side of stirring shaft 1 (101) and stirring shaft 2 (104).

6. A dual-shaft high-efficiency mixing device for road marking paint processing according to claim 5, characterized in that: The stirring rods 1 (103) and the stirring rods 2 (105) are arranged in an alternating manner, so that each group of stirring rods 1 (103) is located in the middle of each adjacent group of stirring rods 2 (105).

7. A dual-shaft high-efficiency mixing device for road marking paint processing according to claim 6, characterized in that: The number of the cutting knives (205) is less than the number of the stirring rod one (103) and the stirring rod two (105), and the cutting knives (205) and the stirring rod one (103) and the stirring rod two (105) are located at the same horizontal position.

8. A dual-shaft high-efficiency mixing device for road marking paint processing according to claim 7, characterized in that: Positioning holes are provided at the top and side of the cutting knife (205), and the positioning holes at the top and side of the cutting knife (205) correspond to the limiting holes of the positioning frame (301).

9. A dual-shaft high-efficiency mixing device for road marking paint processing according to claim 8, characterized in that: When the cutting knife (205) is placed horizontally, the positioning rod 1 (302) can be inserted into the positioning hole at the top of the cutting knife (205), and the limiting hole of the positioning rod 1 (302) corresponds to the top of the positioning frame (301); when the cutting knife (205) is placed vertically, the positioning rod 2 (303) can be inserted into the positioning hole on the side of the cutting knife (205), and the limiting hole of the positioning rod 2 (303) corresponds to the limiting hole on the side of the positioning frame (301).

10. A dual-shaft high-efficiency mixing device for road marking paint processing according to claim 9, characterized in that: A valve (5) is installed through and connected to the bottom end of the mixing chamber (2).

Citation Information

Patent Citations

  • Mixing device for processing traffic pavement marking paint

    CN220443609U