Double-layer water tank for cooling hot melt adhesive

Abstract

The utility model discloses a double-layer water tank for cooling hot melt adhesive, which comprises a first water tank layer, a connecting slide way and a second water tank layer, and the first water tank layer is positioned above the second water tank layer; s-shaped drainage grooves are formed in the first water tank layer and the second water tank layer; one end of the connecting slideway is connected with the cooling tail end of the first water tank layer, and the other end of the connecting slideway is connected with the cooling front end of the second water tank layer; spraying devices are arranged on the first water tank layer and the second water tank layer; the spraying device comprises a spraying pipe and a plurality of sprayers; the spraying pipe is an S-shaped pipe, the shape of the spraying pipe is matched with the shape of the S-shaped drainage groove, and the sprayer is arranged on the spraying pipe. According to the double-layer water tank for cooling the hot melt adhesive, the S-shaped drainage tank and the spraying device are arranged, the hot melt adhesive is cooled in a water cooling mode, cooling liquid is sprayed on the hot melt adhesive by the spraying device while the hot melt adhesive moves, the cooling speed of the hot melt adhesive is further increased, and the cooling efficiency of the double-layer water tank is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hot melt adhesive production equipment, in particular to a double-layer water tank used for cooling hot melt adhesive. Background Art

[0002] Hot melt adhesive is a plastic adhesive. Its physical state changes with temperature within a certain temperature range, but its chemical properties remain unchanged. It is non-toxic and tasteless, and is an environmentally friendly chemical product. When processing hot melt adhesive, it needs to be filled and packaged for subsequent use. However, due to the high temperature of hot melt adhesive, in order to facilitate transportation, the packaged hot melt adhesive needs to be cooled.

[0003] The existing hot melt adhesive cooling device includes a conveyor belt, a box body for containing hot melt adhesive is provided on the conveyor belt, a tunnel box is provided on the conveyor belt, both ends of the tunnel box are provided with passage openings for the box body to pass through, a blower for blowing air into the tunnel box is provided at one end of the tunnel box located at the tail of the conveyor belt, an exhaust fan for exhausting air from the tunnel box is provided at one end of the tunnel box located at the front of the conveyor belt, a refrigerator is provided between the exhaust fan and the blower, and the exhaust fan, the refrigerator and the blower are connected in sequence by air ducts.

[0004] When the cold air first enters the tunnel box, the temperature is low, and the hot melt adhesive that comes into contact with it is in the late cooling stage. When the cold air flows to the front of the conveyor belt, the temperature of the cold air is high, and the hot melt adhesive that comes into contact with it is in the early cooling stage. This makes the hot melt adhesive cool more slowly, resulting in poor cooling effect. In addition, the cooling method using the exhaust fan, refrigerator and blower consumes a lot of electricity, resulting in increased cooling costs. Utility Model Content

[0005] The utility model aims to provide a double-layer water tank for cooling hot melt adhesive, so as to solve the problems of poor cooling effect and high power consumption of existing hot melt adhesive cooling devices.

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

[0007] The utility model provides a double-layer water tank for cooling melt glue, comprising a first water tank layer, a connecting slideway and a second water tank layer, wherein the first water tank layer is located above the second water tank layer;

[0008] The first water trough layer and the second water trough layer are both provided with one or more S-shaped drainage grooves; one end of the connecting slide is connected to the cooling end of the first water trough layer, and the other end of the connecting slide is connected to the cooling front end of the second water trough layer;

[0009] The first water tank layer and the second water tank layer are both provided with a spray device; the spray device comprises a spray pipe and a plurality of sprayers; the spray pipe is an S-shaped pipe, and the shape of the spray pipe is adapted to the shape of the S-shaped drainage tank, and the spray pipe is arranged at the top of the S-shaped drainage tank; the spray pipes are arranged at intervals among the sprayers;

[0010] A water inlet head is arranged inside the S-shaped drainage groove of the first water trough layer, and the water inlet head is located at the cooling front end of the first water trough layer, and the setting height of the water inlet head is lower than the height of the top edge of the first water trough layer; a return water pool is arranged at the cooling end of the second water trough layer, and the return water pool is used to recover the coolant discharged from the water inlet head and the spraying device.

[0011] In the double-layer water tank for cooling hot melt adhesive, a plurality of spray joints are arranged at intervals at the bottom of the spray pipe, and the sprayer is an atomizing spray head, and the sprayer can be detachably mounted on the spray joint.

[0012] In the double-layer water trough for hot melt adhesive cooling, the connecting slide includes a connecting bottom plate and a baffle, the connecting bottom plate is smoothly connected to the bottom of the first water trough layer and the second water trough layer respectively, the baffle is vertically arranged on both sides of the top of the connecting bottom plate, and the trough wall of the first water trough layer, the baffle and the trough wall of the second water trough layer are set at the same height.

[0013] In the double-layer water tank for hot melt adhesive cooling, the water inlet head includes a main pipe and a branch pipe, the main pipe is a straight pipe, the main pipe is vertically arranged inside the S-shaped drainage tank of the first water tank layer, the branch pipe is a U-shaped pipe, the branch pipe is connected to the top of the main pipe, and the main pipe and the branch pipe are connected to each other;

[0014] The water inlet head is provided with a water inlet, a first water outlet and a second water outlet. The water inlet is located at the top of the branch pipe, and the water inlet is used to input coolant into the water inlet head. The first water outlet is located on the side wall of the main pipe, and the water outlet direction of the first water outlet is the same as the length direction of the S-shaped drainage groove. The second water outlet is relatively arranged on both sides of the branch pipe, and the water outlet direction of the second water outlet is the same as the width direction of the S-shaped drainage groove.

[0015] In the double-layer water tank for cooling hot melt adhesive, splash guards are provided at the edges of the first water tank layer and the second water tank layer.

[0016] In the double-layer water tank for hot melt adhesive cooling, the S-shaped drainage tank is provided with a first water barrier, a water barrier plate and a drainage pipe;

[0017] The first water barrier is arranged on one side of the S-shaped drainage groove; the first water barrier comprises a vertical plate, an inclined plate and a horizontal plate, the vertical plate is vertically arranged on the bottom of the S-shaped drainage groove, one end of the horizontal plate is arranged on the side wall of the S-shaped drainage groove, the lower end of the inclined plate is arranged to be connected with the vertical plate, and the other end of the inclined plate is connected with the other end of the horizontal plate; the vertical plate, the inclined plate, the horizontal plate, the side wall of the S-shaped drainage groove and the bottom of the S-shaped drainage groove cooperate to form a first drainage channel, the inclined plate is provided with a plurality of first drainage holes at intervals, and the first drainage holes are connected with the first drainage channel;

[0018] The water-blocking plate is arranged on the other side of the S-shaped drainage groove, and the water-blocking plate cooperates with the other side wall of the S-shaped drainage groove to form a second drainage channel. A through hole is arranged at the bottom of the water-blocking plate, and the through hole is connected with the second drainage channel;

[0019] The drain pipes are respectively located at the bottom of the first water tank layer and the second water tank layer, one end of the drain pipe is communicated with the first drainage channel and the second drainage channel, and the other end of the drain pipe is communicated with the return water pool.

[0020] In the double-layer water tank for cooling hot melt adhesive, the vertical plates are provided with a plurality of second drainage holes at intervals; and the horizontal plates are provided with a plurality of third drainage holes at intervals.

[0021] In the double-layer water tank for cooling hot melt adhesive, the second drainage hole and the third drainage hole are both oblong holes, and the upper parts of the second drainage hole and the third drainage hole are inclined toward the cooling front end.

[0022] A technical solution in the utility model can have the following beneficial effects:

[0023] The double-layer water tank for cooling the hot melt adhesive is provided with an S-shaped drainage tank and a spraying device, and the hot melt adhesive is cooled by water cooling. The hot melt adhesive is sprayed with cooling liquid by the sprayer while moving, which is conducive to further accelerating the cooling speed of the hot melt adhesive and improving the cooling efficiency of the double-layer water tank. In addition, the hot melt adhesive is transported from the first water tank layer to the second water tank layer without power by using a connecting slideway, which has high transportation efficiency, is conducive to reducing energy consumption, and saves manpower and material resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of one embodiment of the utility model;

[0025] Figure 2 It is a top view of an S-shaped drainage groove of the first water groove layer in one embodiment of the utility model;

[0026] Figure 3 It is a structural schematic diagram of an S-shaped drainage trough in one embodiment of the utility model;

[0027] Figure 4 It is a cross-sectional schematic diagram of an S-shaped drainage trough in one embodiment of the utility model;

[0028] In the drawings: a first water tank layer 1; a connecting slide 2, a second water tank layer 3; an S-shaped drainage trough 4, a spray device 5, and a splash plate 6;

[0029] Water inlet head 11; connecting bottom plate 21, baffle plate 22; return water tank 31; first water barrier 41, water barrier plate 42, drain pipe 43; spray pipe 51, sprayer 52;

[0030] Main pipe 111, branch pipe 112; vertical plate 411, inclined plate 412, horizontal plate 413; through hole 421;

[0031] Water inlet 1111 , first water outlet 1112 , second water outlet 1113 ; first drainage hole 4121 , second drainage hole 4111 , third drainage hole 4131 . DETAILED DESCRIPTION

[0032] 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.

[0033] 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.

[0034] In the description of the present invention, unless otherwise specified, “plurality” means two or more.

[0035] 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.

[0036] Please refer to Figures 1 to 4 The utility model provides a double-layer water tank for hot melt adhesive cooling, comprising a first water tank layer 1, a connecting slide 2 and a second water tank layer 3, wherein the first water tank layer 1 is located above the second water tank layer 3;

[0037] The first water trough layer 1 and the second water trough layer 3 are both provided with one or more S-shaped drainage grooves 4; one end of the connecting slide 2 is connected to the cooling end of the first water trough layer 1, and the other end of the connecting slide 2 is connected to the cooling front end of the second water trough layer 3;

[0038] The first water tank layer 1 and the second water tank layer 3 are both provided with a spray device 5; the spray device 5 comprises a spray pipe 51 and a plurality of sprayers 52; the spray pipe 51 is an S-shaped pipe, and the shape of the spray pipe 51 is adapted to the shape of the S-shaped drainage tank 4, and the spray pipe 51 is arranged at the top of the S-shaped drainage tank 4; the spray pipes 51 are arranged at intervals between the sprayers 52;

[0039] A water inlet head 11 is arranged inside the S-shaped drainage groove 4 of the first water trough layer 1. The water inlet head is located at the cooling front end of the first water trough layer 1, and the setting height of the water inlet head 11 is lower than the height of the top edge of the first water trough layer 1; a return water pool 31 is arranged at the cooling end of the second water trough layer 3, and the return water pool 31 is used to recover the coolant discharged from the water inlet head 11 and the spray device 5.

[0040] The first water trough layer 1 is located above the second water trough layer 3, which can reduce the floor space of the water trough while improving the cooling effect. The first water trough layer 1 and the second water trough layer 3 are both provided with one or more S-shaped drainage grooves 4, which can increase the cooling time of the hot melt adhesive and ensure sufficient cooling of the hot melt adhesive. In addition, a spray device 5 is also provided, and the shape of the spray pipe 51 in the spray device 5 is adapted to the shape of the S-shaped drainage groove 4, and sprayers 52 are distributed above the S-shaped drainage groove 4. In the process of the hot melt adhesive moving along the S-shaped drainage groove 4, it is ensured that the S-shaped drainage groove 4 is evenly distributed with sprayers 52. The hot melt adhesive is sprayed with cooling liquid by the sprayer 52 while moving, which is conducive to further accelerating the cooling speed of the hot melt adhesive and improving the cooling efficiency of the double-layer water trough.

[0041] The double-layer water trough for cooling the hot melt adhesive is provided with an S-shaped drainage trough 4 and a spray device 5, and uses water cooling to cool the hot melt adhesive. A connecting slide is used to realize the non-powered transportation of the hot melt adhesive from the first water trough layer 1 to the second water trough layer 3, which has high transportation efficiency, is conducive to reducing energy consumption, and saves manpower and material resources.

[0042] In a specific embodiment of the present invention, the first water trough layer 1 and the second water trough layer 3 are each provided with a section of S-shaped drainage groove 4; after the hot melt adhesive product passes through two bends in the first water trough layer 1, it enters the second water trough layer 3 from the connecting slide 2, and then passes through two bends in the second water trough layer 3 before being removed. In another specific embodiment of the present invention, the first water trough layer 1 and the second water trough layer 3 are each provided with two sections of S-shaped drainage groove 4; the two sections of S-shaped drainage groove 4 are connected to each other and smoothly transition to form a serpentine channel.

[0043] The water inlet head 11 provides power for the hot melt adhesive product, so that the hot melt adhesive product can move along the S-shaped drainage groove 4.

[0044] The return water pool 31 is used to recover the coolant discharged from the water inlet head 11 and the spray device 5. The recovered coolant is filtered and cooled, and then re-enters the first water tank layer 1 through the water inlet head 11. With the above structure, the coolant can be recycled, saving resources and reducing production costs. In practical applications, the coolant is water.

[0045] Specifically, a plurality of spray joints are provided at intervals at the bottom of the spray pipe 51 , and the sprayer 52 is an atomizing spray head, and the sprayer 52 can be detachably mounted on the spray joints.

[0046] The structure of the spray pipe 51 and the sprayer 52 can refer to the existing atomizing spray head and spray pipe with a quick-install structure; the spray pipe 51 is provided with a plurality of spray head installation positions at intervals, and the spray head installation positions are spray joints; the sprayer 52 includes a mounting buckle and a spray head body. When installing the spray joint, the water inlet end of the spray head body is connected with the water outlet hole of the spray joint and then the mounting buckle is buckled on the spray pipe 51, so that the sprayer 52 can be fixed at the installation position of the spray pipe 51.

[0047] With the above structure, when the sprinkler 52 fails, a new sprinkler 52 can be quickly replaced, which is convenient for maintenance by the staff.

[0048] Specifically, the connecting slide 2 includes a connecting bottom plate 21 and a baffle 22. The connecting bottom plate 21 is smoothly connected to the bottoms of the first water trough layer 1 and the second water trough layer 3, respectively. The baffle 22 is vertically arranged on both sides of the top of the connecting bottom plate 21, and the trough wall of the first water trough layer 1, the baffle and the trough wall of the second water trough layer 3 are set at the same height.

[0049] The connecting bottom plate 21 is smoothly connected to the first water trough layer 1 and the second water trough layer 3 respectively, which can effectively prevent the coolant from surging and splashing out of the double-layer water trough during the flow. The baffle 22 is vertically arranged on both sides of the top of the connecting bottom plate 21, and the trough wall of the first water trough layer 1, the baffle and the trough wall of the second water trough layer 3 are set at the same height, which can further prevent the coolant from splashing out.

[0050] Specifically, the water inlet head 11 includes a main pipe 111 and a branch pipe 112, the main pipe 111 is a straight pipe, the main pipe 111 is vertically arranged inside the S-shaped drainage groove 4 of the first water tank layer 1, the branch pipe 112 is a U-shaped pipe, the branch pipe 112 is connected to the top of the main pipe 111, and the main pipe 111 and the branch pipe 112 are connected to each other;

[0051] The water inlet head 11 is provided with a water inlet 1111, a first water outlet 1112 and a second water outlet 1113. The water inlet 1111 is located at the top of the branch pipe 112. The water inlet 1111 is used to input coolant into the water inlet head 11. The first water outlet 1112 is located on the side wall of the main pipe 111, and the water outlet direction of the first water outlet 1112 is the same as the length direction of the S-shaped drainage groove 4. The second water outlet 1113 is relatively arranged on both sides of the branch pipe 112, and the water outlet direction of the second water outlet 1113 is the same as the width direction of the S-shaped drainage groove 4.

[0052] A water inlet head 11 is arranged inside the S-shaped drainage groove 4 of the first water trough layer 1. On the one hand, it can avoid opening holes in the S-shaped drainage groove 4, thereby improving the sealing of the S-shaped drainage groove 4 itself and avoiding water leakage. On the other hand, when a large number of water droplets condense on the surface of the water inlet head 11, the accumulated water droplets can drip into the S-shaped drainage groove 4. The S-shaped drainage groove 4 catches the condensed water of the water inlet head, thereby keeping the production environment dry and avoiding falls and injuries caused by slippery ground.

[0053] Specifically, the first water tank layer 1 and the second water tank layer 3 are both provided with a splash plate 6 at their edges. With the above structure, the splash plate 6 can prevent the water mist sprayed by the sprinkler 52 from falling outside the S-shaped drain trough 4, prevent the splashing of the coolant, and further prevent people from falling and injuring people due to slippery ground.

[0054] Preferably, the S-shaped drainage groove 4 is provided with a first water barrier groove 41, a water barrier plate 42 and a drainage pipe 43;

[0055] The first water-blocking groove 41 is arranged on one side of the S-shaped drainage groove 4; the first water-blocking groove 41 includes a vertical plate 411, an inclined plate 412 and a horizontal plate 413, the vertical plate 411 is vertically arranged on the bottom of the S-shaped drainage groove 4, one end of the horizontal plate 413 is arranged on the side wall of the S-shaped drainage groove 4, the lower end of the inclined plate 412 is arranged to be connected with the vertical plate 411, and the other end of the inclined plate 412 is connected with the other end of the horizontal plate 413; the vertical plate 411, the inclined plate 412, the horizontal plate 413, the side wall of the S-shaped drainage groove 4 and the bottom of the S-shaped drainage groove 4 cooperate to form a first drainage channel, the inclined plate 412 is provided with a plurality of first drainage holes 4121 at intervals, and the first drainage holes 4121 are connected with the first drainage channel;

[0056] The water-blocking plate 42 is arranged on the other side of the S-shaped drainage groove 4, and the water-blocking plate 42 cooperates with the side wall of the other side of the S-shaped drainage groove 4 to form a second drainage channel. A through hole 421 is arranged at the bottom of the water-blocking plate 42, and the through hole is connected with the second drainage channel;

[0057] The drain pipe 43 is located at the bottom of the first water tank layer 1 and the second water tank layer 3 respectively. One end of the drain pipe 43 is connected to the first drainage channel and the second drainage channel, and the other end of the drain pipe 43 is connected to the return water pool 31.

[0058] A first drainage channel is formed by the cooperation of the vertical plate 411, the inclined plate 412, the horizontal plate 413, the side walls of the S-shaped drainage groove 4 and the bottom of the S-shaped drainage groove 4. When the hot melt adhesive product continues to accumulate in the S-shaped drainage groove 4 and the coolant at the rear cannot continue to flow forward, the coolant can enter the first drainage channel through the first drainage hole 4121 and continue to flow, thereby avoiding the problem of coolant overflowing from the S-shaped drainage groove 4.

[0059] The inclined plate 412 is inclined, and when the hot melt adhesive product stays on the inclined plate 412, it will slide into the S-shaped drainage groove 4 due to gravity, so as to prevent the hot melt adhesive product from staying on the surface of the inclined plate 412 and blocking the first drainage hole 4121. The vertical plate 411 and the horizontal plate 413 play the role of fixing and connecting the inclined plate 412.

[0060] The second drainage channel plays the role of auxiliary drainage. At the same time, the structure of the second drainage channel has an opening. When a small amount of hot melt adhesive product is blocked in the water tank, the staff can flush additional coolant through the opening of the second drainage channel, and the coolant then enters the S-shaped drainage groove 4 through the through hole 421. Since the coolant has a certain speed when entering the second drainage channel, when the coolant with a certain speed encounters the accumulated hot melt adhesive product, it will impact the accumulated hot melt adhesive product, giving the hot melt adhesive product power, and preventing the hot melt adhesive product from being blocked in the S-shaped drainage groove 4.

[0061] The first drainage channel and the second drainage channel are both connected to the return water tank 31 through the drainage pipe 43 , and the coolant is recovered through the return water tank 31 .

[0062] Furthermore, the vertical plate 411 is provided with a plurality of second drainage holes 4111 at intervals; and the horizontal plate 413 is provided with a plurality of third drainage holes 4131 at intervals.

[0063] By adopting the above structure, by opening a second drainage hole 4111 on the vertical plate 411, when the water tank is blocked, the coolant enters the first drainage channel through the second drainage hole 4111, which can speed up the discharge of the coolant and avoid the accumulation of the coolant in the S-shaped drainage tank 4.

[0064] When the coolant is submerged in the horizontal plate 413 , the coolant enters the first drainage channel through the third drainage hole 4131 , which can further speed up the discharge of the coolant and prevent the coolant from accumulating in the S-shaped drainage groove 4 .

[0065] Furthermore, the second drainage hole 4111 and the third drainage hole 4131 are both oblong holes, and the upper portions of the second drainage hole 4111 and the third drainage hole 4131 are inclined toward the cooling front end.

[0066] With the above structure, the second drainage hole 4111 or the third drainage hole 4131 is not easily blocked by the hot melt adhesive product, so that the coolant can smoothly pass through the second drainage hole 4111 or the third drainage hole 4131 into the first drainage channel, ensuring that the coolant can continue to flow and avoiding coolant overflow.

[0067] 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 double-layer water tank for cooling hot melt adhesive, characterized in that: It comprises a first water tank layer, a connecting slide and a second water tank layer, wherein the first water tank layer is located above the second water tank layer; The first water trough layer and the second water trough layer are both provided with one or more S-shaped drainage grooves; one end of the connecting slide is connected to the cooling end of the first water trough layer, and the other end of the connecting slide is connected to the cooling front end of the second water trough layer; The first water tank layer and the second water tank layer are both provided with a spray device; the spray device comprises a spray pipe and a plurality of sprayers; the spray pipe is an S-shaped pipe, and the shape of the spray pipe is adapted to the shape of the S-shaped drainage tank, and the spray pipe is arranged at the top of the S-shaped drainage tank; the spray pipes are arranged at intervals among the sprayers; A water inlet head is arranged inside the S-shaped drainage groove of the first water trough layer, and the water inlet head is located at the cooling front end of the first water trough layer, and the setting height of the water inlet head is lower than the height of the top edge of the first water trough layer; a return water pool is arranged at the cooling end of the second water trough layer, and the return water pool is used to recover the coolant discharged from the water inlet head and the spraying device.

2. A double-layer water tank for hot melt adhesive cooling according to claim 1, characterized in that: A plurality of spray joints are arranged at intervals at the bottom of the spray pipe. The sprayer is an atomizing spray head, and the sprayer can be detachably mounted on the spray joint.

3. A double-layer water tank for hot melt adhesive cooling according to claim 1, characterized in that: The connecting slide includes a connecting bottom plate and a baffle, the connecting bottom plate is smoothly connected to the bottom of the first water trough layer and the second water trough layer respectively, the baffle is vertically arranged on both sides of the top of the connecting bottom plate, and the trough wall of the first water trough layer, the baffle and the trough wall of the second water trough layer are set at the same height.

4. A double-layer water tank for hot melt adhesive cooling according to claim 1, characterized in that: The water inlet head includes a main pipe and a branch pipe, the main pipe is a straight pipe, the main pipe is vertically arranged inside the S-shaped drainage groove of the first water tank layer, the branch pipe is a U-shaped pipe, the branch pipe is connected to the top of the main pipe, and the main pipe and the branch pipe are connected to each other; The water inlet head is provided with a water inlet, a first water outlet and a second water outlet. The water inlet is located at the top of the branch pipe, and the water inlet is used to input coolant into the water inlet head. The first water outlet is located on the side wall of the main pipe, and the water outlet direction of the first water outlet is the same as the length direction of the S-shaped drainage groove. The second water outlet is relatively arranged on both sides of the branch pipe, and the water outlet direction of the second water outlet is the same as the width direction of the S-shaped drainage groove.

5. A double-layer water tank for hot melt adhesive cooling according to claim 1, characterized in that: The edges of the first water tank layer and the second water tank layer are both provided with splash guards.

6. A double-layer water tank for hot melt adhesive cooling according to claim 1, characterized in that: The S-shaped drainage trough is provided with a first water barrier, a water barrier plate and a drainage pipe; The first water barrier is arranged on one side of the S-shaped drainage groove; the first water barrier comprises a vertical plate, an inclined plate and a horizontal plate, the vertical plate is vertically arranged on the bottom of the S-shaped drainage groove, one end of the horizontal plate is arranged on the side wall of the S-shaped drainage groove, the lower end of the inclined plate is arranged to be connected with the vertical plate, and the other end of the inclined plate is connected with the other end of the horizontal plate; the vertical plate, the inclined plate, the horizontal plate, the side wall of the S-shaped drainage groove and the bottom of the S-shaped drainage groove cooperate to form a first drainage channel, the inclined plate is provided with a plurality of first drainage holes at intervals, and the first drainage holes are connected with the first drainage channel; The water-blocking plate is arranged on the other side of the S-shaped drainage groove, and the water-blocking plate cooperates with the other side wall of the S-shaped drainage groove to form a second drainage channel. A through hole is arranged at the bottom of the water-blocking plate, and the through hole is connected with the second drainage channel; The drain pipes are respectively located at the bottom of the first water tank layer and the second water tank layer, one end of the drain pipe is communicated with the first drainage channel and the second drainage channel, and the other end of the drain pipe is communicated with the return water pool.

7. A double-layer water tank for hot melt adhesive cooling according to claim 6, characterized in that: The vertical plate is provided with a plurality of second drainage holes at intervals; the horizontal plate is provided with a plurality of third drainage holes at intervals.

8. A double-layer water tank for hot melt adhesive cooling according to claim 7, characterized in that: The second drainage hole and the third drainage hole are both oblong holes, and the upper parts of the second drainage hole and the third drainage hole are inclined toward the cooling front end.

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