A wood plastic board forming cooling device

Abstract

A wood-plastic board forming cooling device comprises a conveyor belt, a nozzle assembly arranged above the conveyor belt, a water tank arranged below the conveyor belt, and a circulating cooling bin arranged on one side of the water tank and connected to the nozzle assembly, wherein a pre-cooling structure is arranged in the water tank, and the pre-cooling structure comprises a driving motor arranged on the outer wall of the water tank, a rotating shaft rotatably connected to the inner wall of the water tank and connected to the output end of the driving motor, and a heat dissipation box fixedly connected to the rotating shaft. The utility model realizes a stable and uniform heat dissipation effect of the high-temperature water source before entering the circulating cooling bin through the arrangement of the conveyor belt, the nozzle assembly, the water tank, the circulating cooling bin and the pre-cooling structure, and the working state of the structure itself can be flexibly adjusted, and has the advantages of convenient disassembly and assembly and easy maintenance.

Description

Technical Field

[0001] The utility model belongs to the technical field of wood-plastic board production equipment, and in particular relates to a wood-plastic board forming cooling equipment. Background Art

[0002] Wood plastic board is a new type of composite plastic mainly made of wood-based materials such as wood cellulose and plant cellulose, thermoplastic polymer materials, processing aids, etc., which are mixed evenly and then heated and extruded by mold equipment; wood plastic board is affected by the composition of thermoplastic polymer materials, and it has thermoplastic properties, so it can be thermoplastic extruded, and needs to be cooled and molded after extrusion. The natural cooling method is inefficient, so water cooling is mostly used at present. The water cooling method includes spraying cooling water directly on the high-temperature extruded wood plastic board. This process consumes a lot of water. The cooling water will absorb heat and flow into the water tank below. Continuous operation will cause the ambient temperature of the water tank below to continue to rise, which is not conducive to the subsequent cooling and molding effect. At the same time, a large amount of water in the water tank is not fully recycled.

[0003] The document with the authorization announcement number CN220681577U discloses a water-cooling circulation device for forming wood-plastic panels, including a conveyor belt for conveying the wood-plastic panels to be formed, and a water-cooling circulation part, wherein the water-cooling circulation part includes a water storage tank and a cooling bin arranged below the conveyor belt, and the cooling bin is provided with a cooling guide pipe which is circulated and connected with the water source in the water storage tank; the cooling bin cools the circulating water source in the cooling guide pipe through a cooling source; and a top water-cooling component, wherein the top water-cooling component includes a water-cooling top frame located above the conveyor belt, and the water-cooling top frame is provided with a plurality of nozzles which are externally connected to the cooling water source in the cooling guide pipe.

[0004] However, the device still has the following problems: the heat dissipation baffle in the water tank is arranged in a slope as a whole, and the hot water at the upper end of the slope flows directly into the bottom of the tank through the heat dissipation baffle. Since its contact time with the heat dissipation baffle is short and the blowing fan action time is short, its temperature is still very high. The device in the water tank cannot effectively cool it, and the water body before entering the cooling bin as a whole still has the problem of high water temperature, and the preset effect cannot be achieved. Utility Model Content

[0005] In view of the above-mentioned problems, the purpose of the utility model is to provide a wood-plastic board forming cooling device. Through the arrangement of a conveyor belt, a nozzle assembly, a water storage tank, a circulating cooling bin and a pre-cooling structure, the heat dissipation effect of the high-temperature water source before entering the circulating cooling bin is stable and uniform, and the working state of the structure itself can be flexibly adjusted, with the advantages of convenient disassembly and assembly and easy maintenance.

[0006] In order to achieve the above purpose, the technical solution of the utility model is as follows:

[0007] A wood-plastic board forming cooling device comprises a conveyor belt, a nozzle assembly arranged above the conveyor belt, a water storage tank arranged below the conveyor belt, and a circulating cooling bin arranged at one side of the water storage tank and connected to the nozzle assembly, wherein a pre-cooling structure is arranged in the water storage tank, and the pre-cooling structure comprises a driving motor arranged on the outer wall of the water storage tank, a rotating shaft rotatably connected to the inner wall of the water storage tank and connected to the output end of the driving motor, and a heat dissipation box fixedly connected to the rotating shaft.

[0008] As a further preferred embodiment of the present invention, the heat dissipation box includes a box body with an open upper end, a fixing plate arranged on the lower surface of the box body and used for mounting the rotating shaft, and two water drop holes arranged on both sides of the box body bottom plate and parallel to the rotating shaft.

[0009] As a further preferred embodiment of the present invention, the heat dissipation box further includes a plurality of vertical heat dissipation plates spaced apart in the box body, and a plurality of through holes arranged on a single vertical heat dissipation plate.

[0010] As a further preferred embodiment of the present invention, the heat dissipation box further includes two ventilation plates arranged on the upper ends of two side plates of the box body parallel to the rotating shaft, and two fans arranged on the two side walls of the water storage tank and opening toward the ventilation plates.

[0011] As a further preferred embodiment of the present invention, the heat dissipation box also includes a screen arranged on the water drop hole.

[0012] As a further preferred embodiment of the present invention, the heat dissipation box also includes a first mounting plate arranged on two side plates of the box body that are perpendicular to the rotation axis, and a second mounting plate arranged on the side wall of the water tank, and the first mounting plate and the second mounting plate are connected by a tension spring.

[0013] As a further preferred embodiment of the present invention, the diameter of the through hole located at the bottom of the vertical heat dissipation plate is the maximum value.

[0014] As a further preferred embodiment of the present invention, the pre-cooling structure also includes a filter plate arranged in the water storage tank and located at the lower end of the heat dissipation box.

[0015] As a further preferred embodiment of the present invention, a side guide plate with an opening area gradually increasing from bottom to top is provided at the notch of the water storage tank.

[0016] As a further preferred embodiment of the present invention, a guide inclined plate is provided on one end of the bottom of the water storage tank away from the circulating cooling bin. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Attached Figure 1It is a schematic diagram of the structure of the utility model at the main viewing angle.

[0018] Attached Figure 2 It is a three-dimensional structural schematic diagram of the pre-cooling structure of the utility model.

[0019] Attached Figure 3 It is a perspective structural schematic diagram of the utility model in a working state at a main viewing angle.

[0020] Attached Figure 4 It is a perspective structural schematic diagram of the utility model in another working state from a main viewing angle.

[0021] Description of the drawings: conveyor belt 11, nozzle assembly 12, water storage tank 13, circulating cooling chamber 14;

[0022] Driving motor 1, rotating shaft 2, heat dissipation box 3, filter plate 4, side guide plate 5, guide inclined plate 6;

[0023] Box body 301 , fixing plate 302 , water drop hole 303 , vertical heat dissipation plate 304 , through hole 305 , air permeable plate 306 , fan 307 , screen 308 , first mounting plate 309 , and second mounting plate 310 . DETAILED DESCRIPTION

[0024] In the description of the present utility model, it should be understood that the terms "upper", "lower", "inside", "outside", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the utility model product is usually placed when in use, or are directions or positional relationships that are usually understood by those skilled in the art. These directions or positional relationships are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present utility model.

[0025] In addition, the terms "first", "second", etc. are only used to distinguish and describe, and should not be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms such as "setting" and "connection" should be understood in a broad sense. For example, "connection" 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 an indirect connection 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] A wood-plastic board forming cooling device provided in the present embodiment comprises a conveyor belt 11, a nozzle assembly 12 arranged above the conveyor belt 11, a water storage tank 13 arranged below the conveyor belt 11, and a circulating cooling bin 14 arranged at one side of the water storage tank 13 and connected to the nozzle assembly 12, wherein a pre-cooling structure is arranged in the water storage tank 13, and the pre-cooling structure comprises a driving motor 1 arranged on the outer wall of the water storage tank 13, a rotating shaft 2 rotatably connected to the inner wall of the water storage tank 13 and connected to the output end of the driving motor 1, a heat dissipation box 3 fixedly connected to the rotating shaft 2, and a filter plate 4 arranged in the water storage tank 13 and located at the lower end of the heat dissipation box 3; in addition, a side guide plate 5 with an opening area gradually increasing from bottom to top is arranged at the notch of the water storage tank 13, and a guide inclined plate 6 is arranged on the side end of the bottom of the water storage tank 13 away from the circulating cooling bin 14.

[0028] It is worth noting that the specific arrangement and structure of the nozzle assembly 12 and the circulating cooling chamber 14 can refer to the structure disclosed in the document with the authorization announcement number CN220681577U, so it will not be repeated in this embodiment.

[0029] It is worth noting that the maximum rotation angle of the heat dissipation box 3 should be such that the highest point of the heat dissipation box 3 does not touch the conveyor belt 11, and the lowest point does not touch the filter plate 4, otherwise it will affect the life of the entire device; the connection structure and method between the rotating shaft 2 and the drive motor 1 are known technologies in the art, so this embodiment will not be repeated. Preferably, the rotating shaft 2 can form a whole with the heat dissipation box 3, and the whole can be detachably connected to the water storage tank 13. The advantage of such a setting is that it can quickly clean the impurities in the box body and the filter plate at the lower end of the box body, so that the entire device has no cleaning dead corners and ensures the cleanliness of the circulating water.

[0030] It is worth mentioning that the driving motor 1 is a motor that can adjust the rotation angle and rotation speed of the rotating shaft 2. This motor is a prior art. The purpose of selecting this functional motor is to enable the heat dissipation box 3 to swing back and forth, thereby promoting the flow of high-temperature water in the box, fully dissipating heat, and improving the pre-cooling effect. The second purpose is to enable the box body to adjust the swing frequency and swing amplitude according to the amount of water in the box. For example, the swing frequency at low water level can be lower and the swing amplitude can be higher. The swing frequency at high water level is adjusted to a higher value and the swing amplitude is reduced. The specific parameters are adjusted according to the actual scenario, which can be achieved by those skilled in the art, so it will not be repeated.

[0031] It is worth noting that the filter plate 4 is mainly used to filter impurities in the water body to prevent them from entering the circulating cooling chamber 14. The filter plate 4 is preferably detachably connected to the water storage tank 13. The structure to achieve this connection can directly adopt the existing structure, so it will not be repeated.

[0032] It is worth mentioning that the purpose of setting the side guide plate 5 is to increase the diameter of the opening of the water storage tank 13 to ensure that all hot water flows into the tank, and the second purpose is to increase the gap between the tank body and the heat dissipation box 3 to prevent the heat dissipation box 3 from reaching the tank wall during the swinging process.

[0033] It is worth noting that the main purpose of setting the guide inclined plate 6 is to enable the water at the bottom of the water storage tank 13 to quickly enter the circulating cooling chamber 14 for cooling.

[0034] As a preferred embodiment of the present embodiment, the heat dissipation box 3 includes a box body 301 with an open upper end, a fixing plate 302 arranged on the lower surface of the box body 301 and used to install the rotating shaft 2, two water drop holes 303 arranged on both sides of the bottom plate of the box body 301 and parallel to the rotating shaft 2, a plurality of vertical heat dissipation plates 304 spaced apart in the box body 301, a plurality of through holes 305 arranged on a single vertical heat dissipation plate 304, two ventilation plates 306 arranged at the upper ends of two side plates of the box body 301 parallel to the rotating shaft 2, two fans 307 arranged on the two side walls of the water storage tank 13 and opening toward the ventilation plates 306, and a screen 308 arranged on the water drop hole 303; wherein, the diameter of the through hole 305 located at the bottom of the vertical heat dissipation plate 304 is the maximum value.

[0035] Among them, the length of the water drop hole 303 is equivalent to the length of the bottom plate of the box body 301, and it is in a long strip shape to improve the water drop efficiency; the height of the vertical heat dissipation plate 304 is equivalent to the height of the side plate of the box body 301; the number and diameter of the through holes 305 are appropriate so as not to hinder the flow of water, and "the diameter of the through hole 305 located at the bottom of the vertical heat dissipation plate 304 is the maximum value" means that the lower end of the lowest through hole 305 is flush with the bottom plate, and the entire through hole opening is larger, which is used to adapt to the rapid flow of water when the water level is low; the ventilation plate 306 can be arranged above the entire side plate, or in the middle position above the side plate. Its main function is to improve the efficiency of the air blown into the box body by the fan 307, thereby improving the air cooling effect in the box body.

[0036] As a preferred embodiment of the present invention, the heat dissipation box 3 further comprises a first mounting plate 309 arranged on two side plates of the box body 301 perpendicular to the rotating shaft 2, and a second mounting plate 310 arranged on the side wall of the water storage tank 13, and the first mounting plate 309 and the second mounting plate 310 are connected by a tension spring. The main purpose of the tension spring is to improve the connection strength between the water storage tank 13 and the heat dissipation box 3, so as to prevent the rotating shaft 2 of the heat dissipation box 3 from being subjected to excessive force during the swinging process, thereby affecting the life of the device.

[0037] The working principle of the cooling device provided in this embodiment is as follows: the nozzle assembly sprays water to water-cool the wood-plastic board on the conveyor belt 11. In this process, the water absorbs heat and flows back to the heat dissipation box 3 of the water storage tank 13. The heat dissipation box 3 initially works at a lower swing frequency and a higher swing amplitude (when the water level becomes higher, it works at a higher swing frequency and a lower swing amplitude), so that the water in the box is fully in contact with the vertical heat dissipation plate 304 and dissipates heat. At the same time, the fan 307 works for air cooling and heat dissipation. When the water moves to the side end of the heat dissipation box 3, it falls to the bottom of the water storage tank 13 through the water drop hole 303. Before falling to the bottom, the impurities in the water are filtered out by the filter plate 4. Finally, the water at the bottom enters the circulating cooling bin 14 for cooling and flows back to the nozzle assembly 12 for standby, thereby completing a cycle.

[0038] Compared with the existing devices, the cooling equipment provided in this embodiment has the following advantages: the heat dissipation effect of the high-temperature water source is stable and uniform before entering the circulating cooling chamber, and the working state of the structure itself can be flexibly adjusted, with the advantages of easy disassembly and assembly and easy maintenance.

[0039] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A wood-plastic board forming cooling device, comprising a conveyor belt (11), a nozzle assembly (12) arranged above the conveyor belt (11), a water storage tank (13) arranged below the conveyor belt (11), and a circulating cooling chamber (14) arranged on one side of the water storage tank (13) and connected to the nozzle assembly (12), characterized in that: A pre-cooling structure is provided in the water storage tank (13), the pre-cooling structure comprising a drive motor (1) provided on the outer wall of the water storage tank (13), a rotating shaft (2) rotatably connected to the inner wall of the water storage tank (13) and connected to the output end of the drive motor (1), and a heat dissipation box (3) fixedly connected to the rotating shaft (2).

2. A wood-plastic board forming and cooling device according to claim 1, characterized in that: The heat dissipation box (3) comprises a box body (301) with an open upper end, a fixing plate (302) arranged on the lower surface of the box body (301) and used for mounting the rotating shaft (2), and two water drop holes (303) arranged on both sides of the bottom plate of the box body (301) and parallel to the rotating shaft (2).

3. A wood-plastic board forming and cooling device according to claim 2, characterized in that: The heat dissipation box (3) further comprises a plurality of vertical heat dissipation plates (304) spaced apart and distributed inside the box body (301), and a plurality of through holes (305) arranged on a single vertical heat dissipation plate (304).

4. A wood-plastic board forming and cooling device according to claim 2, characterized in that: The heat dissipation box (3) further comprises two ventilation plates (306) arranged on the upper ends of two side plates of the box body (301) parallel to the rotation axis (2), and two fans (307) arranged on the two side walls of the water storage tank (13) and with openings facing the ventilation plates (306).

5. A wood-plastic board forming and cooling device according to claim 2, characterized in that: The heat dissipation box (3) further comprises a screen (308) arranged on the water drop hole (303).

6. A wood-plastic board forming and cooling device according to claim 2, characterized in that: The heat dissipation box (3) further comprises a first mounting plate (309) arranged on two side plates of the box body (301) perpendicular to the rotation axis (2), and a second mounting plate (310) arranged on a side wall of the water storage tank (13), wherein the first mounting plate (309) and the second mounting plate (310) are connected via a tension spring.

7. A wood-plastic board forming and cooling device according to claim 3, characterized in that: The diameter of the through hole (305) located at the bottom of the vertical heat dissipation plate (304) is the maximum value.

8. The wood-plastic board forming and cooling equipment according to claim 1, characterized in that: The pre-cooling structure also includes a filter plate (4) arranged in the water storage tank (13) and located at the lower end of the heat dissipation box (3).

9. A wood-plastic board forming and cooling device according to claim 1, characterized in that: The notch of the water storage tank (13) is provided with a side guide plate (5) whose opening area gradually increases from bottom to top.

10. The wood-plastic board forming and cooling equipment according to claim 1, characterized in that: A flow guide inclined plate (6) is provided on one end of the bottom of the water storage tank (13) away from the circulating cooling bin (14).

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