A pipe cleaner and glue melting system

Abstract

The present application belongs to the technical field of pipeline dredging, and specifically relates to a pipeline dredging device and a glue melting system, which are used to solve the problem that hot melt glue in the existing pipeline is prone to cooling and condensation to block the pipeline. The steps of the method include switching the output device by a switching mechanism between a first state of being in communication with a glue injection port and a second state of being in communication with a cleaning port; the state in which the hot melt glue flows from the output device to the glue injection port is the first state; the state in which the hot gas is output from the first cleaning device to the output device is the second state; wherein the switching mechanism comprises a transfer plate and a driving assembly; the driving assembly is engaged with the transfer plate, and the driving assembly can control the lateral movement of the transfer plate; the glue injection port and the cleaning port are arranged on the transfer plate. When the pipeline needs to be cleaned, the switching mechanism controls the movement of the transfer plate, so that the glue injection port in communication with the output device is switched to the cleaning port, and the hot melt glue in the pipeline is blown back into the containing cavity of the output device by using the hot gas, thereby avoiding the cooling and solidification of the hot melt glue to block the pipeline.

Description

Technical Field

[0001] This invention belongs to the field of pipe dredging technology, specifically a pipe dredging device and a melt adhesive system. Background Technology

[0002] Hot melt adhesive is a type of plastic adhesive whose physical state changes with temperature within a certain temperature range, while its chemical properties remain unchanged. Hot melt adhesive machines are an essential auxiliary adhesive application equipment in the hot melt adhesive application industry and are now widely used in the industry. During use, the internal hot melt adhesive is heated and melted, turning into a liquid gel-like substance that is sprayed out to achieve the bonding work.

[0003] When conveying molten hot melt adhesive, the hot melt adhesive will cool down, so the conveying pipeline needs to be continuously heated to ensure that the hot melt adhesive inside the pipeline does not condense. However, due to heat dissipation, the temperature of the pipeline far from the heating component is lower, which can easily cause the hot melt adhesive at the pipe opening to condense and block the pipeline. Therefore, improvements are needed. Summary of the Invention

[0004] Existing melt glue machines have the problem that hot melt glue in the glue outlet pipes can easily cool and solidify, clogging the pipes.

[0005] To alleviate the above-mentioned technical problems, the technical solution provided by the present invention is as follows: This invention provides a drain cleaner, comprising the following steps: S1: The switching mechanism drives the output device to switch between a first state connected to the output port and a second state connected to the cleaning port; The first state is when the hot melt adhesive flows from the output device to the output port; The second state is defined as the state in which hot gas is output from the first cleaning device toward the output device. The switching mechanism includes a transfer board and a drive assembly; The drive assembly engages with the transfer plate, and the drive assembly can control the lateral movement of the transfer plate. The output port and cleaning port are located on the transfer plate.

[0006] Furthermore, The first cleaning device includes an air pump; The air pump is connected to the cleaning port, and the air pump can output hot gas to the cleaning port.

[0007] Furthermore, The output device includes a heat insulation cylinder, a rubber cylinder disposed inside the heat insulation cylinder, and a sensing component communicating with the rubber cylinder; The sensing component has a dispensing tube; The dispensing hose is inserted into the heat insulation cylinder and extends outward; In the first state, the dispensing tube is connected to the output port; In the second state, the dispensing tube connects to the cleaning port.

[0008] Furthermore, The sensing components include a pressure-sensitive push rod, a spring slide, and a pressure-sensitive element; One end of the pressure-sensitive push rod is inserted into the dispensing tube and extends into the dispensing tube, while the other end is fixedly connected to the elastic sliding plate. The elastic sliding plate is configured to correspond with the sensor head of the pressure-sensitive element; In the first state, after the hot melt adhesive flows out of the glue tube, it squeezes the pressure-sensitive push rod, which in turn drives the elastic sliding plate to squeeze the pressure-sensitive element.

[0009] Furthermore, The elastic slide plate is equipped with a first spring, which always has the ability to drive the elastic slide plate to move away from the pressure-sensing element.

[0010] Furthermore, The output device also includes a bellows, a thrust rod, and a connector that are fitted into the dispensing tube; One end of the corrugated pipe is fixedly connected to the end of the heat insulation cylinder that is equipped with the glue outlet pipe, and the other end is fixedly connected to the sensing component. The push rod is positioned on the side of the sensing component closest to the rubber cylinder; The connector is positioned corresponding to the end of the thrust rod furthest from the sensing component; In the second state, the thrust rod squeezes the connector, and after the connector receives the squeezing signal, the rubber sleeve moves away from the output port.

[0011] Furthermore, The bellows is made of an elastic material and always has the ability to drive the thrust rod away from the joint.

[0012] Furthermore, It also includes a second cleaning device; The second cleaning device includes a connecting shell disposed between the output port and the cleaning port, an exhaust assembly disposed on the connecting shell, and a telescopic assembly disposed on the side of the connecting shell away from the output device. During the transition from the first state to the second state, the second cleaning device repeatedly switches between the first action and the second action; The first action is: the telescopic component drives the connecting shell to move towards the output device, and the air pressure inside the connecting shell increases, causing the gas to move towards the outlet tube. The second action is as follows: the telescopic component drives the connecting shell to move towards the transfer plate, the air pressure inside the connecting shell decreases, and the exhaust component exhausts air into the connecting shell.

[0013] Furthermore, The exhaust assembly includes a sliding housing disposed at the slot of the connecting housing; The sliding shell sidewall has a vent. The sliding shell is fixedly connected to the connecting shell by a second spring; When the first action is performed, the air pressure inside the connecting shell increases, driving the sliding shell to move away from the connecting shell and close the slot. When performing the second action, the air pressure inside the connecting shell decreases, driving the sliding shell to move closer to the connecting shell, connecting the slot with the vent. Furthermore, a melt adhesive system includes the aforementioned drain cleaner.

[0014] The beneficial effects of this invention are analyzed as follows: When the pipeline needs cleaning, the switching mechanism controls the transfer plate to move, switching the output port connected to the output device to the cleaning port. Hot gas is used to blow the hot melt adhesive in the pipeline back into the receiving cavity of the output device, preventing the hot melt adhesive from cooling and solidifying and clogging the pipeline. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of the present invention, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is an isometric view of the present invention; Figure 2 This is a schematic diagram showing the connection between the transfer plate and the second cleaning device; Figure 3 This is a cross-sectional schematic diagram of the present invention; Figure 4 This is a schematic diagram of the sensing component. Figure 5 This is a cross-sectional schematic diagram of the second cleaning device; Figure 6 for Figure 5 A magnified view of part A in the diagram.

[0017] icon: 100 - Switching mechanism; 110 - Transfer board; 111 - Output port; 112 - Cleaning port; 120 - Drive assembly; 200 - Output device; 210 - Heat insulation cylinder; 220 - Glue cylinder; 230 - Sensing component; 231 - Glue dispensing tube; 232 - Pressure-sensing push rod; 233 - Elastic sliding plate; 234 - Pressure-sensing element; 235 - First spring; 240 - Bellows; 250 - Push rod; 260 - Connector; 300 - First cleaning device; 310 - Air pump; 400 - Second cleaning device; 410 - Connecting housing; 420 - Exhaust assembly; 421 - Sliding housing; 422 - Vent; 430 - Telescopic assembly; 440 - Second spring. Detailed Implementation Example

[0018] After hot melt adhesive flows out of the pipe, hot melt adhesive residue will remain inside the pipe. The hot melt adhesive will cool and solidify, clogging the pipe.

[0019] In view of this, this embodiment provides a drain cleaner, including the following steps: S1: The switching mechanism 100 drives the output device 200 to switch between a first state connected to the output port 111 and a second state connected to the cleaning port 112; The first state is when hot melt adhesive flows from the output device 200 to the output port 111; the second state is when hot gas is output from the first cleaning device 300 to the output device 200; wherein, the switching mechanism 100 includes a transfer plate 110 and a drive assembly 120; the drive assembly 120 engages with the transfer plate 110 and can control the lateral movement of the transfer plate 110; the output port 111 and the cleaning port 112 are disposed on the transfer plate 110.

[0020] When the pipeline needs cleaning, the switching mechanism 100 controls the transfer plate 110 to move, so that the output port 111 connected to the output device 200 is switched to the cleaning port 112. Hot gas is used to blow the hot melt adhesive in the pipeline back into the receiving cavity of the output device 200 to prevent the hot melt adhesive from cooling and solidifying and blocking the pipeline.

[0021] The following will combine Figures 1 to 6 This plan is described in detail below: like Figure 1 and Figure 2 As shown, the first cleaning device 300 includes an air pump 310; the air pump 310 is connected to the cleaning port 112 and can output hot gas to the cleaning port 112.

[0022] Specifically, a heating element is installed between the air pump 310 and the cleaning port 112, so that the gas can be heated.

[0023] Regarding the shape and structure of the output device 200, such as Figure 3 As shown: The output device 200 includes a heat insulation cylinder 210, a glue tube 220 disposed inside the heat insulation cylinder 210, and a sensing component 230 communicating with the glue tube 220; the sensing component 230 has a glue dispensing tube 231; the glue dispensing tube 231 is inserted into the heat insulation cylinder 210 and extends outward; in a first state, the glue dispensing tube 231 is connected to the output port 111; in a second state, the glue dispensing tube 231 is connected to the cleaning port 112.

[0024] Specifically, the heat insulation cylinder 210 has an opening on the side near the transfer plate 110, and a sleeve is welded to the opening. The sleeve is located inside the heat insulation cylinder 210. The dispensing tube 231 of the sensing component 230 is inserted into the sleeve, and there is a certain gap between the dispensing tube 231 and the sleeve. In the first state, the arc-shaped part of the dispensing tube 231 extends out from the opening of the heat insulation cylinder 210, and the outer wall of the dispensing tube 231 abuts against the output port 111. The purpose of this is, on the one hand, to reduce the occurrence of hot melt adhesive contamination at the opening where the dispensing tube 231 contacts the heat insulation cylinder 210; on the other hand, to ensure accurate docking between the dispensing tube 231 and the output port 111, and to prevent the dispensing tube 231 from shifting during horizontal movement.

[0025] Regarding the shape and structure of the sensing component 230, such as Figure 3 and Figure 4 As shown: The sensing component 230 includes a pressure-sensitive push rod 232, an elastic slide plate 233, and a pressure-sensitive element 234. One end of the pressure-sensitive push rod 232 is inserted into the dispensing tube 231 and extends into the dispensing tube 231, while the other end is fixedly connected to the elastic slide plate 233. The elastic slide plate 233 is correspondingly arranged with the sensing head of the pressure-sensitive element 234. In the first state, after the hot melt adhesive flows into the dispensing tube 231, it squeezes the pressure-sensitive push rod 232, and the pressure-sensitive push rod 232 drives the elastic slide plate 233 to squeeze the pressure-sensitive element 234. A first spring 235 is provided inside the elastic slide plate 233, which always has the ability to drive the elastic slide plate 233 to move away from the pressure-sensitive element 234.

[0026] Specifically, in the first state, as the hot melt adhesive flows from the glue tube 220 along the glue outlet tube 231 to the output port 111, it squeezes out the pressure-sensitive push rod 232 inside the glue tube 231. The pressure-sensitive push rod 232 drives the elastic slide plate 233 to move away from the glue outlet tube 231, so that the side of the elastic slide plate 233 away from the glue outlet tube 231 squeezes the sensing head of the pressure sensing element 234. The pressure sensing element 234 measures the flow rate of the hot melt adhesive based on the magnitude of the pressure. When the hot melt adhesive stops being delivered, the first spring 235 inside the elastic slide plate 233 drives the elastic slide plate 233 away from the sensing element 234, so that the elastic slide plate 233 separates from the sensing head.

[0027] like Figure 3As shown, the output device 200 also includes a bellows 240, a push rod 250, and a connector 260 that are sleeved with the dispensing tube 231; one end of the bellows 240 is fixedly connected to the end of the heat insulation cylinder 210 where the dispensing tube 231 is located, and the other end is fixedly connected to the sensing component 230; the push rod 250 is located on the side of the sensing component 230 near the glue cylinder 220; the connector 260 is correspondingly located at the end of the push rod 250 away from the sensing component 230; in the second state, the push rod 250 presses the connector 260, and after the connector 260 receives the pressing signal, the glue cylinder 220 moves away from the output port 111; the bellows 240 is made of elastic material and always has the ability to drive the push rod 250 away from the connector 260.

[0028] Specifically, in the second state, the air pump 310 outputs hot gas to the output device 200 to blow the hot melt adhesive in the dispensing tube 231 back into the glue cylinder 220. Since there is a gap between the dispensing tube 231 and the sleeve, the hot gas will enter the bellows 240 through the gap. Under the action of pressure, it pushes the sensing component 230 to move towards the glue cylinder 220, causing the push rod 250 to squeeze the connector 260. When the connector 260 is squeezed, it will control the air pump 310 to stop working and start the exhaust valve connected to the glue cylinder 220 to reduce the internal pressure.

[0029] like Figure 5 and Figure 6 As shown, it also includes a second cleaning device 400: The second cleaning device 400 includes a connecting shell 410 disposed between the output port 111 and the cleaning port 112, an exhaust assembly 420 disposed on the connecting shell 410, and a telescopic assembly 430 disposed on the side of the connecting shell 410 away from the output device 200. During the switching process from the first state to the second state, the second cleaning device 400 switches back and forth between the first action and the second action. The first action is: the telescopic assembly 430 drives the connecting shell 410 to move towards the output device 200, and the air pressure inside the connecting shell 410 increases, causing the gas to move towards the dispensing tube 231. The second action is: the telescopic assembly 430 drives the connecting shell 410 to move towards the transfer plate 110, and the air pressure inside the connecting shell 410 decreases, and the exhaust assembly 420 exhausts gas into the connecting shell 410.

[0030] Specifically, the connecting shell 410 is closed on the side near the transfer plate 110, and the edge of the connecting shell 410 extends towards the output device 200. When the telescopic component 430 pushes the connecting shell 410 towards the output device 200, it will push the gas inside the connecting shell 410 to flow towards the output device 200. The purpose of this is that after the glue is sprayed, some hot melt glue will inevitably remain on the edge of the outlet of the glue tube 231. During the transition from the first state to the second state, the hot melt glue may rub onto the transfer plate 110. Therefore, a second cleaning device 400 is provided to output gas to the outlet of the glue tube 231 so that the hot melt glue at the outlet flows back into the glue tube 231.

[0031] Regarding the shape and structure of the exhaust assembly 420, such as Figure 6 As shown: The exhaust assembly 420 includes a sliding shell 421 disposed at the slot of the connecting shell 410; the side wall of the sliding shell 421 has a vent 422; the sliding shell 421 is fixedly connected to the connecting shell 410 by a second spring 440; when the first action is performed, the air pressure inside the connecting shell 410 increases, driving the sliding shell 421 to move away from the connecting shell 410 and close the slot; when the second action is performed, the air pressure inside the connecting shell 410 decreases, driving the sliding shell 421 to move closer to the connecting shell 410 and connect the slot with the vent.

[0032] Specifically, after the first action is completed, the hot melt adhesive at the outlet of the dispensing tube 231 is blown into the dispensing tube 231 by gas. At this time, the second cleaning device 400 will perform the second action. In order to prevent the gas in the dispensing tube 231 from flowing back and carrying the hot melt adhesive out of the dispensing tube 231 during the second action, exhaust devices are provided at the upper and lower parts of the connecting shell 410.

[0033] When the connecting shell 410 moves toward the output device 200, the air pressure inside the connecting shell 410 increases. Under the push of the air pressure, the sliding shell 421 moves away from the connecting shell 410, so that the bottom of the sliding shell 421 seals the slot of the connecting shell 410, and the gas flows only toward the direction of the dispensing tube 231. When the connecting shell 410 moves toward the transfer plate 110, the air pressure inside the connecting shell 410 decreases. Under the pressure of the air pressure, the sliding shell 421 moves toward the connecting shell 410, so that the vent of the sliding shell 421 is connected to the slot of the connecting shell 410, and the gas flows from the outside of the connecting shell to the inside of the connecting shell 410. Example

[0034] This embodiment provides a melt adhesive system, which includes the pipe cleaner described in Embodiment 1, and will not be repeated here. This device is directly connected to the dispensing pipe 231 of the melt adhesive machine, and can blow away the hot melt adhesive adhering to the inner wall of the dispensing pipe 231, thereby clearing the pipe and preventing pipe blockage.

[0035] The present invention has at least the following beneficial effects: 1. When the pipeline needs cleaning, the switching mechanism 100 controls the transfer plate 110 to move, so that the output port 111 connected to the output device 200 is switched to the cleaning port 112. Hot gas is used to blow the hot melt adhesive in the pipeline back into the receiving cavity of the output device 200 to prevent the hot melt adhesive from cooling and solidifying and blocking the pipeline.

[0036] 2. A second cleaning device is provided between the transfer plate 110 and the output device 200, so that the outlet of the glue tube 231 is cleaned during the transition of the output device from the first state to the second state, so as to avoid the hot melt glue at the outlet of the glue tube 231 from contaminating the transfer plate 110.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A drain cleaner, characterized in that, Including the switching mechanism (100); The switching mechanism (100) drives the output device (200) to switch between a first state connected to the output port (111) and a second state connected to the cleaning port (112); The first state is characterized by hot melt adhesive flowing from the output device (200) to the output port (111); The second state is characterized by hot gas being output from the first cleaning device (300) toward the output device (200); The switching mechanism (100) includes a transfer plate (110) and a drive assembly (120). The drive assembly (120) engages with the transfer plate (110), and the drive assembly (120) is capable of controlling the lateral movement of the transfer plate (110); The output port (111) and the cleaning port (112) are disposed on the transfer plate (110); The output device (200) includes a heat insulation cylinder (210), a rubber cylinder (220) disposed inside the heat insulation cylinder (210), and a sensing component (230) communicating with the rubber cylinder (220). The sensing component (230) has a dispensing tube (231); It also includes a second cleaning device (400); The second cleaning device (400) includes a connecting shell (410) disposed between the output port (111) and the cleaning port (112), an exhaust assembly (420) disposed on the connecting shell (410), and a telescopic assembly (430) disposed on the side of the connecting shell (410) away from the output device (200). During the transition from the first state to the second state, the second cleaning device (400) switches back and forth between the first action and the second action; The first action is: the telescopic component (430) drives the connecting shell (410) to move towards the output device (200), and the air pressure inside the connecting shell (410) increases, causing the gas to move towards the dispensing tube (231); The second action is as follows: the telescopic component (430) drives the connecting shell (410) to move towards the transfer plate (110), the air pressure inside the connecting shell (410) decreases, and the exhaust component (420) exhausts air into the connecting shell (410); The exhaust assembly (420) includes a sliding shell (421) disposed at the slot of the connecting shell (410); The sliding shell (421) has a vent (422) on its side wall; The sliding shell (421) is fixedly connected to the connecting shell (410) by a second spring (440); When the first action is performed, the air pressure inside the connecting shell (410) increases, driving the sliding shell (421) to move away from the connecting shell (410) and close the slot; When performing the second action, the air pressure inside the connecting shell (410) decreases, driving the sliding shell (421) to move closer to the connecting shell (410), connecting the slot with the vent.

2. The pipe cleaner according to claim 1, characterized in that: The first cleaning device (300) includes an air pump (310); The air pump (310) is connected to the cleaning port (112), and the air pump (310) can output hot gas to the cleaning port (112).

3. The pipe cleaner according to claim 2, characterized in that: The dispensing tube (231) is inserted into the heat insulation cylinder (210) and extends outward; In the first state, the dispensing tube (231) is connected to the output port (111); In the second state, the dispensing tube (231) is connected to the cleaning port (112).

4. The pipe cleaner according to claim 3, characterized in that: The sensing component (230) includes a pressure-sensitive push rod (232), a spring slide plate (233), and a pressure-sensitive element (234). One end of the pressure-sensitive push rod (232) is inserted into the glue dispensing tube (231) and extends into the glue dispensing tube (231), while the other end is fixedly connected to the elastic sliding plate (233); The elastic sliding plate (233) is correspondingly arranged with the sensing head of the pressure sensing element (234); In the first state, after the hot melt adhesive flows into the glue tube (231), it squeezes the pressure-sensitive push rod (232), and the pressure-sensitive push rod (232) drives the elastic slide plate (233) to squeeze the pressure-sensitive element (234).

5. The pipe cleaner according to claim 4, characterized in that: The elastic slide plate (233) is provided with a first spring (235), which always has the ability to drive the elastic slide plate (233) to move away from the pressure-sensing element (234).

6. The pipe cleaner according to claim 5, characterized in that: The output device (200) also includes a corrugated pipe (240), a thrust rod (250), and a connector (260) that are sleeved with the dispensing tube (231). One end of the corrugated pipe (240) is fixedly connected to the end of the heat insulation cylinder (210) where the dispensing pipe (231) is provided, and the other end is fixedly connected to the sensing component (230). The push rod (250) is disposed on the side of the sensing component (230) near the rubber cylinder (220); The connector (260) is disposed corresponding to the end of the push rod (250) away from the sensing component (230); In the second state, the push rod (250) squeezes the connector (260), and after the connector (260) receives the squeezing signal, the rubber tube (220) moves away from the output port (111).

7. The pipe cleaner according to claim 6, characterized in that: The bellows (240) is made of an elastic material and always has the ability to drive the thrust rod (250) away from the connector (260).

8. A melt adhesive system comprising a drain cleaner as described in any one of claims 1-7.

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