Backwater blocking structure for hot melt adhesive cooling water tank

Abstract

The utility model discloses a return water blocking structure for a hot melt adhesive cooling water tank, which is arranged at the tail end of the hot melt adhesive cooling water tank and comprises a return water tank, a filter screen plate, a first filter screen cage, a water collecting tank and a return water pump, the water return pool is communicated with the hot melt adhesive cooling water tank, the filter screen plate is detachably connected into the water return pool and divides the water return pool into a confluence area and a filter area, a water outlet is formed in the bottom of the water return pool, and the water return pool is connected with the water inlet end of the water collection tank through the water outlet; the water return pump is arranged in the water collecting tank and used for discharging cooling liquid in the water collecting tank. The water outlet is located in the filtering area, and the first filter net cage is placed in the filtering area and located above the water outlet. The backwater blocking structure is applied to the hot melt adhesive cooling water tank, cooling liquid is secondarily filtered by arranging the filter screen plate and the first filter screen cage, chippings-shaped hot melt adhesive or impurities floating in the cooling liquid are filtered out, the chippings-shaped hot melt adhesive or impurities are prevented from blocking a water inlet of a backwater pump, and the situation that the backwater pump breaks down is reduced.

Description

Technical Field

[0001] The utility model relates to the field of cooling water recovery, in particular to a water return blocking structure for a hot melt adhesive cooling water tank. Background Art

[0002] Hot melt adhesive is a plastic adhesive. Its physical state changes with temperature within a certain temperature range, while its chemical properties remain unchanged. It is non-toxic and tasteless, and is an environmentally friendly chemical product. During the processing of hot melt adhesive, the hot melt adhesive needs to be filled and packaged for subsequent use. However, due to the relatively high temperature of hot melt adhesive, the packaged hot melt adhesive needs to be cooled for easy transportation. Existing hot melt adhesive cooling devices generally include a water tank and a coolant delivery pump. The bottom of the traditional water tank is a flat design. The water pump continuously delivers a large amount of coolant to the water tank, so that the coolant drives the hot melt adhesive to flow on the plane, so that the water tank can not only cool the hot melt adhesive, but also deliver the hot melt adhesive to the end of the water tank.

[0003] In order to save resources, a water return structure is usually set at the end of the hot melt adhesive cooling device. The water return structure includes a water return pump, and the coolant will be recovered by the water return pump. After the coolant is recovered, it will be transported back to the water tank by the coolant delivery pump.

[0004] However, during the production process of hot melt adhesive, some hot melt adhesive or debris is usually produced. If the hot melt adhesive or debris directly enters the return water structure, it will block the drain outlet of the return water structure and even block the water inlet end of the return water pump, causing damage to the return water pump. Utility Model Content

[0005] The utility model aims to provide a water return blocking structure for a hot melt adhesive cooling water tank, so as to solve the problem that the water return structure of the cooling water tank is easily blocked by hot melt adhesive or debris.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a water return blocking structure for a hot melt adhesive cooling water tank, which is arranged at the end of the hot melt adhesive cooling water tank and comprises a water return pool, a filter plate, a first filter cage, a water collection tank and a water return pump;

[0008] The return water pool is connected to the hot melt adhesive cooling water tank, the filter plate is detachably connected to the return water pool, and the return water pool is divided into a confluence area and a filtration area. A drain outlet is provided at the bottom of the return water pool, and the return water pool is connected to the water inlet end of the water collecting tank through the drain outlet; the return water pump is arranged in the water collecting tank, for discharging the coolant in the water collecting tank; the drain outlet is located in the filtration area, and the first filter cage is placed in the filtration area and is located above the drain outlet.

[0009] The return water blocking structure for the hot melt adhesive cooling water tank also includes a second filter cage and an overflow pipe; the second filter cage is placed in the confluence area; one end of the overflow pipe is connected to the middle of the hot melt adhesive cooling water tank, and the other end of the overflow pipe is inserted into the second filter cage, and the overflow pipe transports the overflow coolant in the middle of the hot melt adhesive cooling water tank to the confluence area.

[0010] In the water return blocking structure for the hot melt adhesive cooling water tank, the filter screen plate includes a frame and a first filter screen, a clearing area is provided in the middle of the frame, and the filter screen is arranged in the clearing area.

[0011] In the water return blocking structure for the hot melt adhesive cooling water tank, both inner walls of the water return tank are provided with mounting slide grooves, and both ends of the frame are plugged in and connected to the mounting slide grooves on the corresponding side.

[0012] In the water return blocking structure for the hot melt adhesive cooling water tank, a handle is provided on the top of the frame.

[0013] In the return water blocking structure for the hot melt adhesive cooling water tank, the first filter cage includes a frame, a cover plate and a second filter; one side of the cover plate is hinged to the frame, and the other side of the cover plate is provided with a first buckling structure, and the frame is provided with a second buckling structure adapted to the position of the first buckling structure, and the first buckling structure and the second buckling structure are detachably connected; the bottom surface and the surrounding areas of the frame are respectively provided with a first filter installation area, the middle part of the cover plate is provided with a second filter installation area, and the second filter is installed in the first filter installation area or the second filter installation area.

[0014] In the water return blocking structure for the hot melt adhesive cooling water tank, activated carbon particles are arranged in the first filter cage.

[0015] A technical solution in the utility model can have the following beneficial effects:

[0016] The return water blocking structure is applied to the hot melt adhesive cooling water tank. The coolant is secondary filtered by setting a filter plate and a first filter cage to filter out hot melt adhesive or debris floating in the coolant, thereby preventing the hot melt adhesive or debris from clogging the water inlet of the return water pump, reducing the possibility of return water pump failure and extending the service life of the return water pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of one embodiment of the utility model;

[0018] Figure 2 This is an internal structural diagram of a water return tank in one embodiment of the utility model;

[0019] Figure 3This is a schematic diagram of the structure of the first filter cage in one embodiment of the utility model;

[0020] In the attached drawings: hot melt adhesive cooling water tank 1, return water tank 2, filter plate 3, first filter cage 4, water collecting tank 5; second filter cage 6, overflow pipe 7;

[0021] Drain port 20; confluence area 21, filter area 22; installation chute 23; frame 31, first filter screen 32, handle 33; frame body 41, cover plate 42, second filter screen 43;

[0022] A first buckling structure 421 and a second buckling structure 422 . DETAILED DESCRIPTION

[0023] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0024] In the description of the present invention, it is necessary to understand that the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of the features, and are used to distinguish and describe features, without distinction of order or importance.

[0025] In the description of the present invention, unless otherwise specified, “plurality” means two or more.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] Please refer to Figures 1 to 3The utility model provides a water return blocking structure for a hot melt adhesive cooling water tank, which is arranged at the end of a hot melt adhesive cooling water tank 1 and includes a water return pool 2, a filter plate 3, a first filter cage 4, a water collection tank 5 and a water return pump;

[0028] The return water pool 2 is connected to the hot melt adhesive cooling water tank 1, the filter plate 3 is detachably connected to the return water pool 2, and the return water pool 2 is divided into a confluence area 21 and a filtration area 22. A drain outlet 20 is provided at the bottom of the return water pool 2, and the return water pool 2 is connected to the water inlet end of the water collecting tank 5 through the drain outlet 20; the return water pump is arranged in the water collecting tank 5, and is used to discharge the coolant in the water collecting tank 5; the drain outlet 20 is located in the filtration area 22, and the first filter cage 4 is placed in the filtration area 22, and is located above the drain outlet 20.

[0029] The return water blocking structure is applied to the hot melt adhesive cooling water tank. The coolant is secondary filtered by setting the filter plate 3 and the first filter cage 4 to filter out the hot melt adhesive or debris floating in the coolant, thereby preventing the hot melt adhesive or debris from clogging the water inlet of the return water pump, reducing the malfunction of the return water pump and extending the service life of the return water pump.

[0030] The return water pool 2 is connected to the hot melt adhesive cooling water tank 1, and the coolant in the hot melt adhesive cooling water tank 1 eventually converges into the confluence area 21 of the return water pool 2; then, it passes through the filter plate 3 and enters the filter area 22 for the first filtration; then, the coolant flows into the drain port 20 through the first filter cage 4, and enters the water collecting tank 5 through the drain port 20 for secondary filtration; a return water pump is provided in the water collecting tank 5, and the return water pump is connected to an external pipeline, and the coolant in the water collecting tank 5 is discharged through the return water pump.

[0031] In a specific embodiment of the utility model, a liquid level switch is also provided in the water collecting tank 5, and the liquid level switch is electrically connected to the return water pump. When the liquid level of the water collecting tank 5 reaches a set value, the liquid level switch is triggered, so that the return water pump is started, thereby discharging the coolant in the water collecting tank 5, and avoiding the accumulation of too much filtered coolant in the water collecting tank 5.

[0032] Specifically, it also includes a second filter cage 6 and an overflow pipe 7; the second filter cage 6 is placed in the confluence area 21; one end of the overflow pipe 7 is connected to the middle of the hot melt adhesive cooling water tank 1, and the other end of the overflow pipe 7 is inserted into the second filter cage 6, and the overflow pipe 7 transports the overflow coolant in the middle of the hot melt adhesive cooling water tank 1 to the confluence area 21.

[0033] In actual application, the hot melt adhesive cooling water tank may cause the coolant to overflow due to the hot melt adhesive blocking the flow channel. Therefore, the hot melt adhesive cooling water tank is provided with an anti-overflow structure to collect the overflowing coolant and transport it to the return water tank 2 for recycling. Therefore, the return water blocking structure of the utility model is also provided with a second filter cage 6 and an overflow pipe 7, through which the coolant collected by the anti-overflow structure is transported to the return water tank 2; and a second filter cage 6 is provided at the water outlet end of the overflow pipe 7, and the coolant in the overflow pipe 7 is filtered by the second filter cage 6.

[0034] By adopting the above structure, the coolant in the overflow pipe 7 can be pre-filtered to prevent debris or sundries in the coolant discharged from the overflow pipe 7 from increasing the burden on the filter plate 3 and causing the debris or sundries to be blocked on the filter plate 3.

[0035] Specifically, the filter plate 3 includes a frame 31 and a first filter 32 . A clearing area is provided in the middle of the frame 31 , and the filter is arranged in the clearing area.

[0036] The structure is simple and has good filtering effect. When debris or sundries are blocked on the filter plate 3, the filter plate 3 is removed from the return pool 2 and the filter plate 3 is rinsed to remove the debris or sundries blocked on the filter plate 3, which is convenient for cleaning.

[0037] Specifically, both inner walls of the return water tank 2 are provided with mounting grooves 23 , and both ends of the frame 31 are plugged and connected to the mounting grooves 23 on the corresponding side.

[0038] In a specific embodiment of the utility model, both inner walls of the return water tank 2 are provided with mounting grooves 23, and the two ends of the frame 31 are respectively inserted into the mounting grooves 23 on the corresponding side for sliding assembly. The above structure is convenient for disassembly, and it is convenient for the staff to disassemble the filter plate 3 for cleaning.

[0039] Preferably, a handle 33 is provided on the top of the frame 31. With the above structure, the staff can lift the filter plate 3 by the handle 33, which is convenient for the staff to install or remove.

[0040] Specifically, the first filter cage 4 includes a frame body 41, a cover plate 42 and a second filter screen 43; one side of the cover plate 42 is hinged to the frame body 41, and the other side of the cover plate 42 is provided with a first buckling structure 421, and the frame body 41 is provided with a second buckling structure 422 adapted to the position of the first buckling structure 421, and the first buckling structure 421 and the second buckling structure 422 are detachably connected; the bottom surface and the surrounding of the frame body 41 are respectively provided with a first filter screen installation area, the middle part of the cover plate 42 is provided with a second filter screen installation area, and the second filter screen 43 is installed in the first filter screen installation area or the second filter screen installation area.

[0041] With the above structure, the staff can flush the second filter 43 from the inside of the first filter cage 4 by lifting the cover plate 42 , so that the staff can clean the first filter cage 4 easily.

[0042] Optionally, activated carbon particles are arranged in the first filter cage 4. With the above structure, fine impurities in the coolant can be adsorbed and further impurities in the coolant can be removed.

[0043] The technical principle of the present invention is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations here, technicians in this field can think of other specific implementations of the present invention without creative work, and these equivalent variations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A water return blocking structure for a hot melt adhesive cooling water tank, characterized in that: It is arranged at the end of the hot melt adhesive cooling water tank, and includes a return water pool, a filter plate, a first filter cage, a water collection tank and a return water pump; The return water pool is connected to the hot melt adhesive cooling water tank, the filter plate is detachably connected to the return water pool, and the return water pool is divided into a confluence area and a filtration area. A drain outlet is provided at the bottom of the return water pool, and the return water pool is connected to the water inlet end of the water collecting tank through the drain outlet; the return water pump is arranged in the water collecting tank, for discharging the coolant in the water collecting tank; the drain outlet is located in the filtration area, and the first filter cage is placed in the filtration area and is located above the drain outlet.

2. A water return blocking structure for a hot melt adhesive cooling water tank according to claim 1, characterized in that: It also includes a second filter cage and an overflow pipe; the second filter cage is placed in the confluence area; one end of the overflow pipe is connected to the middle of the hot melt adhesive cooling water tank, and the other end of the overflow pipe is inserted into the second filter cage, and the overflow pipe transports the overflow coolant in the middle of the hot melt adhesive cooling water tank to the confluence area.

3. A water return blocking structure for a hot melt adhesive cooling water tank according to claim 1, characterized in that: The filter screen plate comprises a frame and a first filter screen. An air avoidance area is provided in the middle of the frame, and the filter screen is arranged in the air avoidance area.

4. A water return blocking structure for a hot melt adhesive cooling water tank according to claim 3, characterized in that: The inner walls on both sides of the return water tank are provided with mounting slide grooves, and the two ends of the frame are respectively plugged and connected to the mounting slide grooves on the corresponding side.

5. The water return blocking structure for a hot melt adhesive cooling water tank according to claim 3, characterized in that: A handle is provided on the top of the frame.

6. A water return blocking structure for a hot melt adhesive cooling water tank according to claim 1, characterized in that: The first filter cage includes a frame, a cover plate and a second filter; one side of the cover plate is hinged to the frame, and the other side of the cover plate is provided with a first buckling structure, and the frame is provided with a second buckling structure adapted to the position of the first buckling structure, and the first buckling structure and the second buckling structure are detachably connected; the bottom surface and the surrounding of the frame are respectively provided with a first filter installation area, and the middle part of the cover plate is provided with a second filter installation area, and the second filter is installed in the first filter installation area or the second filter installation area.

7. A water return blocking structure for a hot melt adhesive cooling water tank according to claim 1, characterized in that: Activated carbon particles are arranged in the first filter cage.

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