Deslagging mechanism for hot-melting road marking machine and hot-melting road marking machine

Abstract

The utility model discloses a slag discharging mechanism for a hot-melting road marking machine and the hot-melting road marking machine, and the slag discharging mechanism comprises a driving piece, a slag discharging piece and a slag discharging piece, the driving piece is connected with a machine body of the hot-melting road marking machine; the supporting assembly is connected with the driving part of the driving piece; and the tool bit assembly is connected with the supporting assembly, and the driving piece drives the tool bit assembly to move through the supporting assembly so as to open or close a coating outlet of the hot-melting road marking machine, so that material residues in the hot-melting road marking machine are discharged. The slag discharging mechanism disclosed by the utility model can ensure that the slag is smoothly discharged in the operation process of the hot-melting road marking machine, so that the equipment failure and maintenance requirements are reduced, and the overall working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to road marking technical field especially is related to a kind of slagging mechanism and hot melt road marking machine for hot melt road marking machine. BACKGROUND

[0002] With the continuous development of automation equipment, hot melt road marking machine is applied more and more widely.

[0003] In the related art, the slagging mechanism of hot melt road marking machine is an important component of the marking machine, which ensures that the paint can flow smoothly from the hot melt kettle, and removes possible impurities and hard objects in the marking process to ensure the quality of marking.

[0004] However, the slagging mechanism of hot melt road marking machine in the related art has low working efficiency. UTILITY MODEL CONTENT

[0005] The utility model aims at at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a slagging mechanism for hot melt road marking machine. The slagging mechanism can ensure smooth discharge of slag during operation of the hot melt road marking machine, thereby reducing equipment failure and maintenance requirements and improving overall working efficiency.

[0006] Another purpose of the utility model is to provide a hot melt road marking machine.

[0007] According to the slagging mechanism for hot melt road marking machine provided by the utility model, the slagging mechanism comprises:

[0008] A driving member is connected to the body of the hot melt road marking machine.

[0009] A support assembly is connected to the driving part of the driving member.

[0010] A tool bit assembly is connected to the support assembly. The driving member drives the tool bit assembly to move through the support assembly to open or close the paint outlet of the hot melt road marking machine, so as to discharge the slag inside the hot melt road marking machine.

[0011] According to the embodiment of the utility model provides a for hot melt road marking machine's discharging structure, through setting drive piece can drive piece can drive discharging mechanism open or close hot melt road marking machine's coating outlet, thereby can discharge hot melt road marking machine inside material residue, guarantee hot melt road marking machine body inside coating uniform, can guarantee the quality of marking line further, and can promote the stability of hot melt road marking machine simultaneously, through setting support component can support component can realize the movement of tool head component with drive piece cooperation to open or close hot melt road marking machine's coating outlet, make material residue in hot melt road marking machine discharge from coating outlet place, thereby can promote the stability of discharging mechanism, through setting tool head component can tool head component movement can open or close hot melt road marking machine's coating outlet, thereby can discharge hot melt road marking machine inside material residue.

[0012] In some examples of the utility model, the discharging mechanism further comprises:

[0013] The fixing assembly is connected with the fixing part of the body and the driving part respectively, and the fixing assembly is hinged with the support assembly.

[0014] In some examples of the utility model, the driving part is configured as a pneumatic cylinder.

[0015] In some examples of the utility model, the driving part is configured as a linear motor.

[0016] In some examples of the utility model, the support assembly comprises:

[0017] One end of the first support part is connected with the driving part, and the first support part is hinged with the fixing assembly;

[0018] The opposite ends of the second support part are connected with the other end of the first support part respectively, and the second support part is connected with the tool head assembly.

[0019] In some examples of the utility model, the fixing assembly comprises:

[0020] One side of the first fixing plate is connected with the body, and the other side of the first fixing plate is arranged in a spaced manner with the driving part;

[0021] The second fixing plate is connected with one side of the first fixing plate, and the second fixing plate is hinged with the first support part;

[0022] One end of the fixing seat is connected with the other side of the first fixing plate, and the other end of the fixing seat is connected with one end of the driving part away from the first support part.

[0023] In some examples of the utility model, the first support has a plurality of lightening holes and a hinge hole, the plurality of lightening holes are arranged on opposite surfaces of the first support, and the hinge hole is arranged on the side surface of the first support and used for being hinged with the second fixed plate.

[0024] According to the hot melt road marking machine provided by the utility model, the hot melt road marking machine comprises:

[0025] The machine body has a paint outlet.

[0026] The slag discharging mechanism is connected with the machine body, and drives the cutter head assembly to move to open or close the paint outlet of the hot melt road marking machine, so as to discharge the slag in the hot melt road marking machine.

[0027] Additional aspects and advantages of the utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0029] Figure 1 It is a top view of the slag discharging mechanism for the hot melt road marking machine according to the utility model;

[0030] Figure 2 It is an isometric view of the slag discharging mechanism for the hot melt road marking machine according to the utility model;

[0031] Figure 3 It is a structural schematic view of the slag discharging mechanism for the hot melt road marking machine according to the utility model;

[0032] Figure 4 It is a structural schematic view of the first support in the slag discharging mechanism according to the utility model;

[0033] Figure 5 It is a partial structure schematic view of the hot melt road marking machine according to the utility model;

[0034] Figure 6 It is Figure 5 A local enlarged schematic view in the middle A.

[0035] Reference numerals:

[0036] 1-hot melt road marking machine;

[0037] 10-discharging mechanism;

[0038] 20-machine body;21-paint outlet;

[0039] 100-driving member;110-fixed part;120-driving part;

[0040] 200-support assembly;210-first support member;211-weight-reducing hole;212-hinge hole;220-second support member;

[0041] 300-tool head assembly;

[0042] 400-fixing assembly;410-first fixing plate;420-second fixing plate;430-fixing seat. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0044] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the features limited as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0045] In the description of the utility model, it is necessary to explain, unless there is definite stipulation and limitation, the term "installation", "connection", "connection" should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be the communication inside two elements.For ordinary skilled person in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0046] The embodiments of the utility model are described in detail below, the examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout the description.The embodiments described below by referring to the drawings are exemplary, only for explaining the utility model, and cannot be understood as the limitation of the utility model.

[0047] Figure 1 It is a top view of the slag discharge mechanism for the hot melt road marking machine according to the utility model; Figure 2 It is an axonometric view of the slag discharge mechanism for the hot melt road marking machine according to the utility model; Figure 3 It is a structural schematic view of the slag discharge mechanism for the hot melt road marking machine according to the utility model; Figure 4 It is a structural schematic view of the first supporting piece in the slag discharge mechanism according to the utility model; Figure 5 It is a partial structural schematic view of the hot melt road marking machine according to the utility model; Figure 6 It is Figure 5 It is a local enlarged schematic view at A in the middle.

[0048] The following refers to Figures 1-6 A slag discharge mechanism 10 for a hot melt road marking machine 1 according to an embodiment of the utility model is described below, which comprises: a driving piece 100, the driving piece 100 is connected with the body 20 of the hot melt road marking machine 1;Supporting assembly 200, the supporting assembly 200 is connected with the driving part 120 of the driving piece 100;The cutter head assembly 300 is connected with the supporting assembly 200, the driving piece 100 drives the cutter head assembly 300 to move through the supporting assembly 200 to open or close the coating outlet 21 of the hot melt road marking machine 1, so as to discharge the slag inside the hot melt road marking machine 1.

[0049] Specifically, the driving piece 100 can be fixedly connected with the body 20 through threaded connection, the driving piece 100 can drive the slag discharge mechanism 10 to open or close the coating outlet 21 of the hot melt road marking machine 1, so as to discharge the slag inside the hot melt road marking machine 1, so as to ensure the uniformity of the coating inside the body 20 of the hot melt road marking machine 1, thereby ensuring the quality of the marking, and the stability of the hot melt road marking machine 1 can be improved synchronously.

[0050] The support assembly 200 can be movably connected with the driving part 120 of the driving member 100 through bearing connection, and the support assembly 200 can cooperate with the driving member 100 to realize the movement of the cutter head assembly 300 to open or close the paint outlet 21 of the hot melt road marking machine 1, so that the residue in the hot melt road marking machine 1 can be discharged from the paint outlet 21, thereby improving the stability of the residue discharging mechanism 10.

[0051] The cutter head assembly 300 can be fixedly connected with the support assembly 200 through threaded connection, and one end of the cutter head assembly 300 away from the support assembly 200 can abut against the paint outlet 21 of the hot melt road marking machine 1. In this way, the support assembly 200 can provide support for the cutter head assembly 300, thereby ensuring the stability and safety of the cutter head assembly 300 during movement. The driving member 100 can drive the support assembly 200 to move, thereby driving the cutter head assembly 300 to move. The movement of the cutter head assembly 300 can open or close the paint outlet 21 of the hot melt road marking machine 1, thereby discharging the residue in the hot melt road marking machine 1.

[0052] According to the residue discharging structure for the hot melt road marking machine 1, the driving member 100 can drive the residue discharging mechanism 10 to open or close the paint outlet 21 of the hot melt road marking machine 1, thereby discharging the residue in the hot melt road marking machine 1, to ensure the uniformity of the paint in the body 20 of the hot melt road marking machine 1, thereby ensuring the quality of the marking and improving the stability of the hot melt road marking machine 1. The support assembly 200 can cooperate with the driving member 100 to realize the movement of the cutter head assembly 300 to open or close the paint outlet 21 of the hot melt road marking machine 1, so that the residue in the hot melt road marking machine 1 can be discharged from the paint outlet 21, thereby improving the stability of the residue discharging mechanism 10. The cutter head assembly 300 can move to open or close the paint outlet 21 of the hot melt road marking machine 1, thereby discharging the residue in the hot melt road marking machine 1.

[0053] Please continue to participate Figures 1-3 As shown, the residue discharging mechanism 10 further comprises a fixing assembly 400 connected with the body 20 and the fixing part 110 of the driving member 100, and the fixing assembly 400 is hingedly connected with the support assembly 200.

[0054] It should be noted that the fixed assembly 400 can be fixedly connected with the machine body 20 by welding, threaded connection and the like, and the fixed assembly 400 can also be connected with the fixed part 110 of the driving part 100 by threaded connection. In this way, the fixed assembly 400 can provide support for the driving part 100, thereby improving the stability of the residue discharging mechanism 10, and further improving the stability of the hot melt road marking machine 1.

[0055] The fixed assembly 400 can also be hingedly connected with the supporting assembly 200, so that the driving part 100 can drive the supporting assembly 200 to rotate by a certain amplitude around the hinge point of the fixed assembly 400, and the supporting assembly 200 can drive the cutter head assembly 300 to move up and down, thereby opening or closing the paint outlet 21 of the hot melt road marking machine 1, and further discharging the residue in the hot melt road marking machine 1.

[0056] The residue in the hot melt road marking machine 1 can be the paint residue that cannot be completely melted or smoothly discharged after melting during the hot melting process. If the temperature of the hot melt road marking machine 1 is set too high or too low, the paint may not be uniformly melted, thereby forming residue; if the paint raw material used contains impurities or is of poor quality, it may also cause uneven melting, thereby forming residue.

[0057] Please continue to see Figures 1-3 As shown, according to an embodiment of the present application, the driving part 100 is configured as a pneumatic cylinder.

[0058] Specifically, the fixed part 110 of the driving part 100 can be fixedly connected with the fixed assembly 400 by threaded connection, and the driving part 100 of the driving part 100 can also be fixedly connected with the supporting assembly 200 by threaded connection. In this way, the fixed assembly 400 can provide support for the driving part 100, and the driving part 100 can drive the supporting assembly 200 to rotate by a certain amplitude. The driving part 100 can be a pneumatic cylinder, which has the advantages of simple structure, convenient maintenance, high reliability, etc. The pneumatic cylinder can also work in harsh environments, thereby improving the practicality of the residue discharging mechanism 10.

[0059] Please continue to see Figures 1-3 As shown, according to another embodiment of the present application, the driving part 100 is configured as a linear motor.

[0060] Specifically, the driving part 100 can also be a linear motor, and the system structure of the linear motor can be simplified, and the volume and weight can also be correspondingly reduced, thereby reducing the volume and weight of the residue discharging mechanism 10; the linear motor also has the characteristics of simple structure, and the detection and maintenance of the linear motor are also relatively simple, thereby reducing the maintenance cost and labor cost of the residue discharging mechanism 10.

[0061] Please continue reading Figure 1 and Figure 4 As shown, according to another embodiment of the present invention, the support component 200 includes: a first support member 210, one end of which is connected to the driving part 120 of the driving member 100, and the first support member 210 is hinged to the fixing component 400; and a second support member 220, the opposite ends of which are respectively connected to the other end of the first support member 210, and the second support member 220 is connected to the cutter head assembly 300.

[0062] Specifically, the first support member 210 can be constructed as an irregular plate-shaped structure. One end of the first support member 210 can be movably connected to the driving part 120 of the driving member 100 via a bearing connection, which facilitates the driving member 100 to drive the first support member 210 to rotate to a certain extent. The first support member 210 can also be movably connected to the fixed component 400 via a hinge. With this configuration, the driving member 100 can drive the first support member 210 to rotate to a certain extent around the hinge hole 212, thereby improving the stability of the slag discharge mechanism 10.

[0063] The number of first support members 210 can be two, respectively arranged at both ends of the machine body 20 along the length direction of the slag discharge mechanism 10. The length direction of the slag discharge mechanism 10 is... Figure 1 The direction indicated by X in the middle; the number of driving components 100 can also be two, and the driving components 100 can be set in correspondence with the first support component 210. One driving component 100 drives one first support component 210, and the first support component 210 can be connected to the corresponding driving component 100 respectively.

[0064] It should be noted that the second support member 220 can be constructed as an L-shaped strip structure. The two ends of the second support member 220 can be connected to the other end of the first support member 210 by means of threaded connection or integral molding connection. This facilitates the drive member 100 to drive the first support member 210 to rotate, thereby driving the second support member 220 to move up and down. The second support member 220 can be fixedly connected to the cutter head assembly 300 by threaded connection. With this configuration, the drive member 100 drives the second support member 220 to move up and down, thereby driving the cutter head assembly 300 to move up and down, which can open or close the paint outlet 21, allowing the material residue inside the hot melt road marking machine 1 to be discharged.

[0065] Please continue reading Figures 1-3As shown, according to the optional embodiment of the present application, the fixing assembly 400 comprises: a first fixing plate 410, one side of the first fixing plate 410 is connected with the machine body 20, and the other side of the first fixing plate 410 is arranged in a spaced manner with the driving member 100; a second fixing plate 420, the second fixing plate 420 is connected with one side of the first fixing plate 410, and the second fixing plate 420 is hinged with the first supporting member 210; a fixing seat 430, one end of the fixing seat 430 is connected with the other side of the first fixing plate 410, and the other end of the fixing seat 430 is connected with the fixing part 110 of the driving member 100.

[0066] Specifically, the first fixing plate 410 can be configured as a rectangle or other irregular shape, and the embodiments of the present application do not make specific limitations thereon. One side of the first fixing plate 410 can be fixedly connected with the machine body 20 in a threaded connection manner, and the other side of the first fixing plate 410 can be arranged in a spaced manner with the driving member 100, so as to facilitate the machine body 20 to provide support for the first fixing plate 410.

[0067] Further, the second fixing plate 420 can also be configured as a rectangle or other irregular shape, and the second fixing plate 420 can be fixedly connected with one side of the first fixing plate 410 in a welding, threaded connection or one-piece connection manner, and the second fixing plate 420 can be movably connected with the first supporting member 210 in a hinged manner. In this way, when the driving member 100 drives the first supporting member 210 to rotate, the second fixing plate 420 can provide support for the first supporting member 210, thereby improving the stability and safety of the slag discharging mechanism 10.

[0068] One end of the fixing seat 430 can be fixedly connected with the other side of the first fixing plate 410 in a welding, threaded connection or other connection manner, so as to facilitate the first fixing plate 410 to provide support for the fixing seat 430; the other end of the fixing seat 430 can be connected with the fixing part 110 of the driving member 100 in a threaded connection manner, so as to facilitate the fixing seat 430 to provide support for the fixing part 110 of the driving member 100, thereby improving the stability of the slag discharging mechanism 10.

[0069] Please continue to see Figure 4 As shown, according to the further embodiment of the present application, the first supporting member 210 has a plurality of weight-reducing holes 211 and a hinge hole 212, the plurality of weight-reducing holes 211 are arranged in a penetrating manner on the opposite side surfaces of the first supporting member 210, and the hinge hole 212 is arranged on the side surface of the first supporting member 210 and is used for being hinged with the second fixing plate 420.

[0070] Specifically, the side surface of the first supporting member 210 can be provided with a plurality of weight-reducing holes 211, and the weight-reducing holes 211 can be distributed in a row in a spaced manner along the axial direction of the first supporting member 210, and the axial direction of the first supporting member 210 can be the direction along which the first supporting member 210 is arranged on the first fixing plate 410. Figure 4The weight reduction hole 211 can reduce the weight of the first support 210, and by opening a hole in a non-critical area of the first support 210, the use of materials can be effectively reduced, thereby reducing the weight of the slag discharge mechanism 10 and simultaneously reducing the manufacturing cost of the slag discharge mechanism 10.

[0071] Further, the hinge hole 212 can be arranged on the side of the first support 210 and close to the bottom of the first support 210, away from the weight reduction hole 211 of the first support 210. The first support 210 can be hinged with the second fixed plate 420 through the hinge hole 212. In this way, the first support 210 can make a rotating movement with the hinge hole 212 as the origin, and the second fixed plate 420 can provide support for the first support 210, thereby improving the safety and stability of the slag discharge mechanism 10.

[0072] Please continue to refer to Figure 5 and Figure 6 As shown in FIGS. 1-8, the hot melt road marking machine 1 according to the embodiments of the present application is characterized in that it comprises a machine body 20, the machine body 20 having a coating outlet 21; a slag discharge mechanism 10, the slag discharge mechanism 10 being the slag discharge mechanism 10 for the hot melt road marking machine 1 in the above-mentioned embodiments, the slag discharge mechanism 10 being connected with the machine body 20, the slag discharge mechanism 10 driving the cutter head assembly 300 to move to open or close the coating outlet 21 of the hot melt road marking machine 1, so as to discharge the slag inside the hot melt road marking machine 1.

[0073] Specifically, the machine body 20 can be made of a metal material, for example, an aluminum alloy, which has high strength and good processability, so as to effectively improve the overall strength of the machine body 20, thereby greatly improving the service life of the hot melt road marking machine 1. The machine body 20 has a coating outlet 21, and the coating flows to the coating outlet 21 in the direction of gravity in the machine body 20. The flow direction of the coating in the hot melt road marking machine 1 is the direction indicated by arrow Z in the figure. Figure 6 The direction indicated by arrow Z in the figure.

[0074] It should be noted that the specific structure and working principle of the slag discharge mechanism 10 have been explained in detail in the above-mentioned embodiments, which will not be repeated here; the slag discharge mechanism 10 can be connected with the cutter head assembly 300 through the support assembly 200, and the slag discharge mechanism 10 can also be connected with the machine body 20 through the fixing assembly 400, and the cutter head assembly 300 can be arranged opposite to the coating outlet 21, so as to drive the support assembly 200 to move to drive the cutter head assembly 300 to move through the driving member 100 of the slag discharge mechanism 10, thereby controlling the opening or closing of the coating outlet 21, and then discharging the slag inside the hot melt road marking machine 1.

[0075] Other structures of the hot-melt road marking machine 1, for example, threaded connection, integrated connection and operation are known to those skilled in the art, and will not be described in detail here.

[0076] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0077] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A slagging mechanism for a hot melt road marking machine, characterized in that, The utility model relates to a kind of discharge mechanism for hot melt road marking machine, including: Driving part, the driving part is connected with the body of the hot melt road marking machine; Supporting component, the driving part of the driving part is connected with; Tool head component, the supporting component is connected with the supporting component, and the driving part drives the tool head component to move to open or close the paint outlet of the hot melt road marking machine by the supporting component, to discharge the residue inside the hot melt road marking machine.

2. The slagging mechanism for hot melt road marking machine according to claim 1, wherein, Further comprising: Fixed component, the fixed component is connected with the body and the fixed part of the driving part respectively, and the fixed component is hinged with the supporting component.

3. The slagging mechanism for hot melt road marking machine as claimed in claim 1 wherein, The driving part is configured as a cylinder.

4. The slagging mechanism for hot melt road marking machine according to claim 1, wherein, The driving part is configured as a linear motor.

5. The slagging mechanism for hot melt road marking machine as claimed in claim 2 wherein, The supporting component includes: First supporting part, one end of the first supporting part is connected with the driving part, and the first supporting part is hinged with the fixed component; Second supporting part, the opposite ends of the second supporting part are respectively connected with the other end of the first supporting part, and the second supporting part is connected with the tool head component.

6. The slagging mechanism for hot melt road marking machine according to claim 5, wherein, The fixed component includes: First fixed plate, one side of the first fixed plate is connected with the body, and the other side of the first fixed plate is spaced apart from the driving part; Second fixed plate, the second fixed plate is connected with one side of the first fixed plate, and the second fixed plate is hinged with the first supporting part; Fixed seat, one end of the fixed seat is connected with the other side of the first fixed plate, and the other end of the fixed seat is connected with one end of the driving part away from the first supporting part.

7. The slagging mechanism for hot melt road marking machine as claimed in claim 6 wherein, The first supporting part has a plurality of lightening holes and a hinge hole, a plurality of the lightening holes are disposed through the opposite side surfaces of the first supporting part, and the hinge hole is disposed on the side surface of the first supporting part, and the hinge hole is used for hinging with the second fixed plate.

8. A hot melt lane marking machine characterized by, Including: Body, the body has paint outlet; Residue discharge mechanism, the residue discharge mechanism is the residue discharge mechanism for hot melt road marking machine according to any one of claims 1-7, the residue discharge mechanism is connected with the body, and the residue discharge mechanism drives the tool head component to move to open or close the paint outlet of the hot melt road marking machine, to discharge the residue inside the hot melt road marking machine.

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