Production and screening device for hot-melt type reflective pavement marking paint

Abstract

The utility model relates to the technical field of coating screening, and discloses a hot melt type reflective pavement marking coating production screening device which comprises a screening box and a circulating material guiding mechanism installed on one side of the screening box and used for feeding large-particle raw materials again, and a crushing mechanism used for crushing the large-particle raw materials is installed on the upper surface of the screening box in a penetrating mode. A screening drum used for screening raw materials is arranged in an inner cavity of the screening box. Through cooperation of the circulating material guiding mechanism and the crushing mechanism, the circulating material guiding mechanism conveys large-particle raw materials which do not pass screening to the crushing mechanism, so that recycling of the raw materials is achieved, waste is reduced, the large-particle raw materials are crushed through the two sets of crushing tooth rollers, and it is ensured that the granularity of the raw materials is uniform; and other equipment is not needed for secondary processing of large-particle raw materials, so that the screening efficiency is improved, the equipment cost is saved, and the production efficiency and quality of the hot-melt reflective pavement marking coating are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of paint screening, in particular to a hot-melt type reflective pavement marking paint production screening device. BACKGROUND

[0002] Reflective hot-melt paint is a kind of paint coated on the road for marking road marking, and the hot-melt reflective marking paint is mainly used on highways above grade 2 and expressways. The marking paint layer formed by this paint has a thickness of 1.0-2.5 mm, and reflective glass beads are mixed in the paint. During the marking construction, the reflective glass beads are scattered on the construction surface.

[0003] In the production process of reflective hot-melt paint, various ingredients need to be mixed. In order to mix the ingredients more fully, the ingredients usually need to be screened. However, in the prior art, when the paint raw materials are screened, the raw materials with large particles are screened out, and then the large-particle raw materials screened out need to be crushed and screened again, thereby reducing the efficiency of screening the raw materials. Therefore, we need to propose a hot-melt type reflective pavement marking paint production screening device. SUMMARY

[0004] The utility model aims at providing a hot-melt type reflective pavement marking paint production screening device, which can conveniently crush the large-particle raw materials screened out and re-screen the crushed raw materials, reduce the number of equipment used, and improve the screening efficiency of the paint raw materials to solve the problems raised in the above background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a hot-melt type reflective pavement marking paint production screening device, comprising:

[0006] A screening box and a circulating material guiding mechanism installed on one side of the screening box for re-feeding large-particle raw materials, a crushing mechanism for crushing large-particle raw materials is installed through the upper surface of the screening box, a screen cylinder for screening raw materials is arranged in the inner cavity of the screening box, a stirring mechanism is arranged above the screen cylinder, and a conveying mechanism for discharging the screened raw materials is arranged below the screen cylinder.

[0007] The crushing mechanism comprises a feeding square tube installed through the upper surface of the screening box, two groups of crushing tooth rollers are rotatably arranged in the inner cavity of the feeding square tube, the two groups of crushing tooth rollers are arranged in meshing relationship, and one end of one group of the crushing tooth rollers penetrates through the feeding square tube and is driven by a second motor.

[0008] Preferably, the circulating material guiding mechanism comprises a collection box installed on one side of the screening box, a stand pipe is arranged on the collection box, the lower end of the stand pipe is located in the inner cavity of the collection box, a feeding auger is rotatably arranged in the stand pipe, and the lower end of the feeding auger penetrates through the collection box and is driven by a third motor.

[0009] Preferably, the upper end of the riser is provided with a connecting pipe that communicates with the feed square pipe. The connecting pipe is inclined, and side grooves are provided on both sides of the end of the riser located in the inner cavity of the collection box.

[0010] Preferably, a feeding hopper for feeding is provided on the side opposite to the feeding square tube and the connecting tube, the discharge end of the feeding hopper is located below the two sets of crushing toothed rollers, and a docking hole communicating with the collection box is provided on one side of the screening box.

[0011] Preferably, the stirring mechanism includes a rotating shaft rotatably installed inside the screening box, one end of the rotating shaft passing through the screening box and driven by a first motor, and multiple sets of stirring components are arranged on the outer side of the rotating shaft, with the multiple sets of stirring components arranged at equal intervals.

[0012] Preferably, each set of stirring components includes at least three sets of stirring blocks, and each set of stirring blocks is provided with multiple sets of slids on the side opposite to the rotating shaft, and one side of each set of slids is slidably disposed on the inner wall of the screen cylinder.

[0013] Preferably, the screen cylinder is U-shaped and inclined, and the inner cavity of the screening box is provided with a guide plate located below the screen cylinder.

[0014] Preferably, the conveying mechanism includes two sets of drive rollers rotatably disposed inside the screening box, and conveyor belts are provided on the two sets of drive rollers. One set of drive rollers passes through the screening box and is driven by a fourth motor. A discharge hole is provided at the lower end of the screening box on the side opposite to the docking hole.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model mainly utilizes the cooperation between a circulating material guiding mechanism and a crushing mechanism. The circulating material guiding mechanism transports large particles of raw materials that have not passed screening to the crushing mechanism, thereby realizing the recycling of raw materials and reducing waste. The two sets of crushing toothed rollers are used to crush the large particles of raw materials, ensuring that the particle size of the raw materials is uniform. There is no need to use other equipment for secondary processing of large particles of raw materials, which improves screening efficiency, saves equipment costs, and improves the production efficiency and quality of hot melt reflective pavement marking paint. Attached Figure Description

[0017] Fig. 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Fig. 2 This is a schematic diagram of the internal structure of the screening box of this utility model;

[0019] Fig. 3 This is a schematic diagram of the circulating material guiding mechanism of this utility model.

[0020] Fig. 1, screening box; 2, stirring mechanism; 21, rotating shaft; 22, first motor; 23, stirring piece; 231, push block; 232, push piece; 3, crushing mechanism; 31, feeding square tube; 32, crushing tooth roller; 33, second motor; 4, feeding hopper; 5, circulating material guiding mechanism; 51, collecting box; 52, vertical pipe; 53, side groove; 54, feeding auger; 55, third motor; 56, connecting pipe; 6, screen cylinder; 7, guide plate; 8, butt joint hole; 9, conveying mechanism; 91, driving roller; 92, conveying belt; 10, fourth motor; 11, discharge hole. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0022] Please refer to Figs. 1-3 The present application provides a technical solution: a hot-melt type reflective pavement marking paint production screening device, comprising:

[0023] The screening box 1 and the circulating material guiding mechanism 5 installed on one side of the screening box 1 for re-feeding large-particle raw materials are provided, the crushing mechanism 3 for crushing the large-particle raw materials is installed through the upper surface of the screening box 1, the screen cylinder 6 for screening the raw materials is arranged in the inner cavity of the screening box 1, the stirring mechanism 2 is arranged above the screen cylinder 6, and the conveying mechanism 9 for guiding the screened raw materials is arranged below the screen cylinder 6.

[0024] The crushing mechanism 3 comprises the feeding square tube 31 installed through the upper surface of the screening box 1, the two groups of crushing tooth rollers 32 are rotationally arranged in the inner cavity of the feeding square tube 31, and the two groups of crushing tooth rollers 32 are arranged in meshing mode, and one end of one group of crushing tooth rollers 32 penetrates through the feeding square tube 31 and is driven by the second motor 33.

[0025] The circulating material guiding mechanism 5 comprises the collecting box 51 installed on one side of the screening box 1, the vertical pipe 52 is arranged on the collecting box 51, the lower end of the vertical pipe 52 is located in the inner cavity bottom of the collecting box 51, the feeding auger 54 is rotationally arranged in the vertical pipe 52, the lower end of the feeding auger 54 penetrates through the collecting box 51 and is driven by the third motor 55, the feeding auger 54 driven by the third motor 55 facilitates conveying the screened large-particle raw materials to the crushing mechanism 3 for crushing treatment, reduces the cost of raw material screening and crushing, and realizes the recycling of raw materials.

[0026] The upper end of the vertical pipe 52 is provided with a connecting pipe 56 in communication with the feeding square pipe 31, the connecting pipe 56 is arranged obliquely, the vertical pipe 52 is arranged at one end of the inner cavity of the collecting box 51, and side grooves 53 are arranged on both sides of the vertical pipe 52, so that the large-particle raw materials screened out enter the vertical pipe 52, and then the feeding auger 54 can convey the large-particle raw materials to the crushing mechanism 3.

[0027] The feeding square pipe 31 is provided with a feeding hopper 4 for feeding on the side opposite to the connecting pipe 56, the discharge end of the feeding hopper 4 is arranged below the two groups of crushing tooth rollers 32, one side of the screening box 1 is provided with a butt joint hole 8 in communication with the collecting box 51, the raw materials of the paint are conveniently fed through the feeding hopper 4, and the crushing processing of the large-particle raw materials is not affected, and the practicability is improved.

[0028] The stirring mechanism 2 comprises a rotating shaft 21 rotatably arranged in the inner cavity of the screening box 1, one end of the rotating shaft 21 penetrates through the screening box 1 and is driven by the first motor 22, and a plurality of groups of stirring pieces 23 are arranged on the outer side of the rotating shaft 21, the plurality of groups of stirring pieces 23 are arranged at equal intervals, the range of stirring the raw materials is increased through the plurality of groups of stirring pieces 23, so that the screening of the raw materials is accelerated, and the screening time of the raw materials is shortened.

[0029] Each group of stirring pieces 23 comprises at least three groups of stirring blocks 231, each group of stirring blocks 231 is provided with a plurality of groups of stirring sheets 232 on the side opposite to the rotating shaft 21, and the plurality of groups of stirring sheets 232 are slidingly arranged on the inner wall of the screen cylinder 6, the raw materials in the screen cylinder 6 are stirred by the plurality of groups of stirring sheets 232, so that the qualified raw materials are screened out through the screen cylinder 6, and the screening efficiency of the raw materials is improved.

[0030] The screen cylinder 6 is arranged in a U shape, the screen cylinder 6 is arranged obliquely, and the inner cavity of the screening box 1 is provided with a guide plate 7 located below the screen cylinder 6, the structure design of the screen cylinder 6 facilitates the screening of the raw materials under the action of gravity and the stirring mechanism 2, and facilitates the discharge of the large-particle raw materials.

[0031] The conveying mechanism 9 comprises two groups of driving rollers 91 rotatably arranged in the inner cavity of the screening box 1, and a conveying belt 92 is arranged on the two groups of driving rollers 91, one of the two groups of driving rollers 91 penetrates through the screening box 1 and is driven by the fourth motor 10, and a discharge hole 11 is arranged at the lower end of the side opposite to the butt joint hole 8 of the screening box 1, the driving roller 91 is driven by the fourth motor 10 to make the conveying belt 92 convey the screened qualified raw materials outward, so that the qualified raw materials are conveniently collected, and the collection efficiency is improved.

[0032] In use, the raw materials enter the feeding square tube 31 through the feeding hopper 4, the rotating shaft 21 of the stirring mechanism 2 drives the stirring block 231 and the stirring sheet 232 to slide and stir the raw materials in the sieve cylinder 6, the qualified raw materials fall into the guide plate 7 through the sieve holes, the large-particle raw materials that do not pass the screening slide into the collecting box 51 through the butt joint hole 8 of the sieve cylinder 6, the large-particle raw materials enter the vertical pipe 52 through the side groove 53, the feeding auger 54 upwardly conveys the large-particle raw materials to the feeding square tube 31 through the connecting pipe 56 for crushing, the raw materials fall into the sieve cylinder 6 after being crushed by the two groups of meshing crushing tooth rollers 32, the screened qualified raw materials fall into the conveying belt 92 through the guide plate 7, and are guided out to the discharge hole 11 by the conveying mechanism 9. The screening efficiency and the raw material utilization rate are improved.

[0033] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A production and screening device for hot-melt type retroreflective pavement marking paint, characterized by, Include: Screening box (1), and the recycling guide mechanism (5) for re-feeding large particle raw materials is installed on one side of the screening box (1), the upper surface of the screening box (1) is provided with a crushing mechanism (3) for crushing large particle raw materials, the inner cavity of the screening box (1) is provided with a screen cylinder (6) for screening raw materials, the upper side of the screen cylinder (6) is provided with a stirring mechanism (2), and the lower side of the screen cylinder (6) is provided with a conveying mechanism (9) for discharging screened raw materials; The crushing mechanism (3) comprises a feeding square tube (31) installed through the upper surface of the screening box (1), two groups of crushing tooth rollers (32) are rotatably arranged in the inner cavity of the feeding square tube (31), and the two groups of crushing tooth rollers (32) are arranged in meshing mode. One end of one group of the crushing tooth rollers (32) penetrates the feeding square tube (31) and is driven by a second motor (33).

2. The production and screening device for heat-melting type reflective pavement marking paint according to claim 1, characterized in that: The recycling guide mechanism (5) comprises a collecting box (51) installed on one side of the screening box (1), a vertical pipe (52) is arranged on the collecting box (51), the lower end of the vertical pipe (52) is located in the inner cavity of the collecting box (51), a feeding auger (54) is rotatably arranged in the vertical pipe (52), and the lower end of the feeding auger (54) penetrates the collecting box (51) and is driven by a third motor (55).

3. The production and screening device for heat-melting type reflective pavement marking paint according to claim 2, characterized in that: The upper end of the vertical pipe (52) is provided with a connecting pipe (56) connected with the feeding square tube (31), the connecting pipe (56) is inclined, and side grooves (53) are formed on both sides of one end of the vertical pipe (52) in the inner cavity of the collecting box (51).

4. The production and screening device for heat-melting type reflective pavement marking paint according to claim 3, characterized in that: The feeding square tube (31) is provided with a feeding hopper (4) for feeding on the side opposite to the connecting pipe (56), the discharge end of the feeding hopper (4) is arranged below the two groups of crushing tooth rollers (32), and the side of the screening box (1) is provided with a butt joint hole (8) connected with the collecting box (51).

5. The production and screening device for heat-melt type reflective pavement marking paint according to claim 4, characterized in that: The stirring mechanism (2) comprises a rotating shaft (21) rotatably arranged in the inner cavity of the screening box (1), one end of the rotating shaft (21) penetrates the screening box (1) and is driven by a first motor (22), a plurality of groups of stirring pieces (23) are arranged on the outer side of the rotating shaft (21), and the plurality of groups of stirring pieces (23) are arranged at equal intervals.

6. The production and screening device for heat-melt type retroreflective pavement marking paint according to claim 5, characterized in that: Each group of the stirring pieces (23) comprises at least three groups of pushing blocks (231), each group of the pushing blocks (231) is provided with a plurality of groups of pushing pieces (232) on the side opposite to the rotating shaft (21), and one side of the plurality of groups of pushing pieces (232) is slidably arranged on the inner wall of the screen cylinder (6).

7. The production and screening device for heat-melting type reflective pavement marking paint according to claim 6, characterized in that: The screen cylinder (6) is arranged in a U shape, the screen cylinder (6) is arranged in an inclined manner, and the inner cavity of the screening box (1) is provided with a guide plate (7) located below the screen cylinder (6).

8. The production and screening device for heat-melting type reflective pavement marking paint according to claim 7, characterized in that: The conveying mechanism (9) comprises two groups of drive rollers (91) rotatably arranged in the inner cavity of the screening box (1), the conveying belt (92) is arranged on the two groups of drive rollers (91), one group of the drive rollers (91) penetrates the screening box (1) and is driven by a fourth motor (10), and the lower end of the side of the screening box (1) opposite to the butt joint hole (8) is provided with a discharge hole (11).

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