Waste heat recovery equipment of foam plastic molding machine

Abstract

The utility model relates to the technical field of foamed plastic molding machines, in particular to waste heat recovery equipment of a foamed plastic molding machine, which comprises an injection molding feeding assembly, the feeding end of the injection molding feeding assembly is connected with an injection mold assembly, the upper end of the injection molding feeding assembly is provided with a feeding hopper assembly, and the feeding hopper assembly is provided with a conveying mechanism. A first connecting pipe is arranged on the material conveying mechanism, and a cooling mechanism is connected to the first connecting pipe. According to the injection molding feeding assembly, backflow cooling water can enter the feeding hopper assembly, so that the temperature of materials in the feeding hopper assembly is effectively increased through cooperation of the inner coil pipe fitting and the outer coil pipe fitting, the energy consumption of the injection molding feeding assembly in the later period when the materials are molten is reduced, and meanwhile potential energy generated when the cooling water flows back can be converted; and the stability of material conveying is better ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of foam plastic molding machines, in particular to a waste heat recovery device for a foam plastic molding machine. Background Art

[0002] After the foaming molding is completed, the excess steam, hot water formed by steam condensation and cooling water are generally discharged from the drain pipe of the foam plastic molding machine to the waste water tank uniformly. At this time, the discharged water still has waste heat, and its temperature is higher than the normal temperature, sometimes even as high as 90 °C. The discharged water contains a large amount of heat, and direct discharge causes energy waste.

[0003] For the existing foam plastic molding machine with the publication number of CN211616345U and its waste heat recovery device, the waste heat recovery device includes a main waste heat collection pipeline, a shunt collection pipeline, a waste heat recovery box, a shunt discharge pipeline, a discharge component and a main waste heat discharge pipeline. The main waste heat collection pipeline is used to connect the drain pipe of the molding machine, the shunt collection pipeline is connected to the main waste heat collection pipeline, the waste heat recovery box is connected to the shunt pipeline, the shunt discharge pipeline is connected to the waste heat recovery box, the discharge component is arranged on the shunt discharge pipeline, and the main waste heat discharge pipeline is connected to the shunt discharge pipeline. The waste heat recovery device collects the waste heat of the molding machine through the main waste heat collection pipeline, then transfers it to the waste heat recovery box for storage through the shunt collection pipeline, and then the discharge component releases the waste heat carrier from the waste heat recovery box, and finally discharges and reuses it through the main waste heat discharge pipeline. By collecting, storing and discharging the waste heat through the waste heat recovery device, the waste heat can be recycled, saving energy and being environmentally friendly.

[0004] In the above technical solution, the waste heat is recovered, but how to make full use of it is not fully shown, and how to use the waste heat on the foam plastic molding machine to reduce its energy consumption is a difficult technical problem in this field. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the deficiencies existing in the prior art, and to propose a waste heat recovery device for a foam plastic molding machine.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A waste heat recovery device for a foam plastic molding machine includes an injection molding feeding component. The feeding end of the injection molding feeding component is connected with an injection molding die component. An inlet hopper component is installed on the upper end of the injection molding feeding component. A feeding mechanism is arranged on the inlet hopper component. A first connecting pipe is arranged on the feeding mechanism, and a cooling mechanism is connected to the first connecting pipe.

[0008] The cooling mechanism is provided with two connecting pipes, one end of which is penetrated by a resistance pipe, and a fixing plate is fixed on the two resistance pipes, and an adjustment mechanism is provided on the fixing plate, and the adjustment mechanism is connected to the injection mold assembly;

[0009] One end of the resistance tube is connected to a telescopic tube, one of which is connected to a cooling mechanism, an inner coil pipe is installed in the feed hopper assembly, the upper end of the inner coil pipe is connected to a bent pipe, the bent pipe is penetrated through the upper end of the feed hopper assembly, the feeding mechanism is connected to the inner coil pipe, the lower end of the bent pipe is fixed with an outer coil pipe, the outer coil pipe is sleeved on the feed hopper assembly, the lower end of the outer coil pipe is fixed with a second connecting pipe, the second connecting pipe is connected to the feeding mechanism, the lower end of the inner coil pipe is penetrated through the lower end of the feed hopper assembly, and the lower end of the feed hopper assembly is connected to another telescopic tube.

[0010] Compared with the prior art, the present application enables the refluxed cooling water to enter the feed hopper assembly, so as to effectively increase the temperature of the material in the feed hopper assembly through the cooperation of the inner coil pipe fittings and the outer coil pipe fittings, so as to reduce the energy consumption of the subsequent injection molding feeding assembly when melting the material, and at the same time, it can also transform the potential energy of the cooling water during the reflux, so as to better ensure the stability of material transportation.

[0011] Preferably, the feeding mechanism includes an injection pipe installed at the upper end of the feed hopper assembly, a conversion mechanism is provided in the injection pipe, a vertical shaft is provided on the conversion mechanism, the vertical shaft is rotatably sleeved on the injection pipe and the feed hopper assembly, an auger component is fixed at one end of the vertical shaft located in the feed hopper assembly, the auger component is located in the inner coil member, and the second connecting pipe is arranged through the upper end of the injection pipe.

[0012] Furthermore, the vertical axis can drive the auger to rotate, so that the material in the hopper assembly can be transported downward, and the material can enter the injection molding feeding assembly stably. At the same time, a corresponding feed port is set on the hopper assembly to facilitate the addition of materials, and the lower end of the hopper assembly is set in a cone shape to facilitate the stable descent of the material.

[0013] Preferably, the conversion mechanism includes a paddle arranged in the injection pipe, the paddle is fixed to one end of the vertical axis located in the injection pipe, and the first connecting pipe is penetrated and arranged on one side of the lower end of the injection pipe.

[0014] Furthermore, the pump body can effectively realize the circulation of cooling water, so that the cooling water enters the upper end of the injection pipe through the second connecting pipe. As the cooling water falls, the blades rotate, so that the blades drive the vertical shaft and the auger to rotate.

[0015] Preferably, the cooling mechanism comprises a cooling water tank assembly penetrating the upper end of the first connecting pipe, one end of the cooling water tank assembly is connected to a pump body, and one of the telescopic tubes is connected to the pump body.

[0016] Furthermore, the cooling water can enter the injection mold assembly through the action of the pump body, and can effectively absorb the heat in the injection mold assembly during the foam plastic molding.

[0017] Preferably, the adjustment mechanism includes a slide groove arranged on one side of the fixed plate, a slider is slidably installed in the slide groove, a rocker arm is rotatably connected to the slider, the rocker arm is rotatably connected to the injection mold assembly, and an electric telescopic rod is rotatably connected between the injection mold assembly and the rocker arm.

[0018] Furthermore, the operation of the electric telescopic rod can make the swing arm swing, and the swing arm can drive the slider to move in the slide groove, so that the fixed plate can move toward the injection mold assembly, and the interference tube and the connecting tube on the fixed plate can be interfered with, which can effectively seal and avoid leakage, and facilitate the circulation of cooling water.

[0019] The beneficial effects of the utility model are:

[0020] 1. The vertical axis can drive the auger to rotate, so that the material in the hopper assembly can be transported downward, and the material can stably enter the injection molding feeding assembly. At the same time, a corresponding feeding port is set on the hopper assembly to facilitate the addition of materials, and the lower end of the hopper assembly is set in a cone shape to facilitate the stable descent of the material;

[0021] 2. The cooling water can be effectively circulated through the pump body so that the cooling water enters the upper end of the injection pipe through the second connecting pipe. As the cooling water falls, the blades rotate so that the blades drive the vertical shaft and the auger to rotate;

[0022] 3. The cooling water that absorbs heat increases the temperature of the material in the hopper assembly through the cooperation of the inner and outer coils, so as to reduce the energy consumption of the subsequent injection molding feeding assembly when melting the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a connection structure diagram of the utility model;

[0024] Figure 2 This is the internal structure diagram of the injection pipe and hopper assembly of the utility model;

[0025] Figure 3 This is a structural diagram of a fixed plate of the utility model;

[0026] Figure 4 This is a structural diagram of the injection pipe and the second connecting pipe of the utility model;

[0027] In the figure: 1 injection mold assembly, 2 injection feeding assembly, 3 feeding hopper assembly, 4 pump body, 5 cooling water tank assembly, 6 connecting pipe, 7 telescopic pipe, 8 first connecting pipe, 9 second connecting pipe, 10 injection pipe, 11 paddle, 12 vertical shaft, 13 elbow pipe fitting, 14 auger piece, 15 outer disk pipe fitting, 16 inner disk pipe fitting, 17 fixing plate, 18 sliding groove, 19 swing rod, 20 electric telescopic rod, 21 slider, 22 abutting pipe. Specific implementation mode

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0029] Refer to Figures 1-4 , a waste heat recovery device for a foam plastic molding machine, including an injection feeding assembly 2. The feeding end of the injection feeding assembly 2 is connected to an injection mold assembly 1. An inlet hopper assembly 3 is installed at the upper end of the injection feeding assembly 2. A feeding mechanism is provided on the inlet hopper assembly 3. A first connecting pipe 8 is provided on the feeding mechanism. Through the action of the feeding mechanism, materials can be stably fed into the inlet hopper assembly 3, the materials can be melted through the inlet hopper assembly 3, and the melted materials can also enter the injection mold assembly 1 for foam plastic molding operations. A cooling mechanism is connected to the first connecting pipe 8. Two connecting pipes 6 are provided on the cooling mechanism. The cooling mechanism includes a cooling water tank assembly 5 penetrating through the upper end of the first connecting pipe 8. One end of the cooling water tank assembly 5 is connected to a pump body 4. One of the telescopic pipes 7 is connected to the pump body 4. Through the action of the pump body 4, cooling water can enter the injection mold assembly 1, and can effectively absorb the heat generated during the foam plastic molding in the injection mold assembly 1.

[0030] Refer to Figures 1-4, the material feeding mechanism includes an injection pipe 10 installed at the upper end of the feeding hopper assembly 3. A conversion mechanism is provided inside the injection pipe 10. A vertical shaft 12 is provided on the conversion mechanism. The conversion mechanism includes a paddle 11 arranged inside the injection pipe 10. The paddle 11 is fixed to one end of the vertical shaft 12 located inside the injection pipe 10. A first connecting pipe 8 is penetrated and arranged on one side of the lower end of the injection pipe 10. The vertical shaft 12 is rotatably sleeved on the injection pipe 10 and the feeding hopper assembly 3. One end of the vertical shaft 12 located inside the feeding hopper assembly 3 is fixed with an auger member 14. Through the pump body 4, the circulating flow of cooling water can be effectively realized, so that the cooling water enters the upper end of the injection pipe 10 through the second connecting pipe 9. As the cooling water falls, the paddle 11 rotates, so that the paddle 11 drives the vertical shaft 12 and the auger member 14 to rotate. The auger member 14 is located inside the inner disk pipe member 16. The second connecting pipe 9 is penetrated and arranged on the upper end of the injection pipe 10. Through the vertical shaft 12, the auger member 14 can be driven to rotate, so that the material inside the feeding hopper assembly 3 can be conveyed downward, and the material can stably enter the injection molding feeding assembly 2. At the same time, a corresponding feeding port is arranged on the feeding hopper assembly 3 to facilitate the addition of materials. Moreover, the lower end of the feeding hopper assembly 3 is tapered to facilitate the stable descent of materials.

[0031] Refer to Figures 1-4 , one end of the connecting pipe 6 is penetrated with a contact pipe 22. A fixing plate 17 is commonly fixed on the two contact pipes 22. An adjusting mechanism is arranged on the fixing plate 17. The adjusting mechanism is connected to the injection mold assembly 1. The adjusting mechanism includes a sliding groove 18 arranged on one side of the fixing plate 17. A slider 21 is slidably installed inside the sliding groove 18. A swing rod 19 is rotatably connected to the slider 21. The swing rod 19 is rotatably connected to the injection mold assembly 1. An electric telescopic rod 20 is commonly rotatably connected between the injection mold assembly 1 and the swing rod 19. Through the operation of the electric telescopic rod 20, the swing rod 19 can be swung. The swing rod 19 can drive the slider 21 to move inside the sliding groove 18, so that the fixing plate 17 can move towards the injection mold assembly 1, and the contact pipe 22 on the fixing plate 17 can be in contact with the connecting pipe 6, effectively sealing and avoiding leakage, facilitating the circulating flow of cooling water.

[0032] Refer to Figures 1-4One end of the resistance tube 22 is connected with a telescopic tube 7, one of which is connected to the cooling mechanism. An inner coil pipe 16 is installed in the hopper assembly 3, and the upper end of the inner coil pipe 16 is connected to a bent pipe 13, which is arranged through the upper end of the hopper assembly 3. The feeding mechanism is connected to the inner coil pipe 16, and the lower end of the bent pipe 13 is fixed with an outer coil pipe 15. The cooling water that absorbs heat passes through the inner coil pipe 16 and then enters the outer coil pipe 15, which can effectively increase the temperature in the hopper assembly 3, better increase the temperature of the material, reduce energy consumption, and increase waste heat. In order to improve the utilization efficiency, the outer coil pipe 15 is sleeved on the feed hopper assembly 3, and the second connecting pipe 9 is fixed to the lower end of the outer coil pipe 15, and the second connecting pipe 9 is connected to the feeding mechanism. The lower end of the inner coil pipe 16 is penetrated and arranged at the lower end of the feed hopper assembly 3, and the lower end of the feed hopper assembly 3 is connected to another telescopic pipe 7. The cooling water can be effectively flowed through the telescopic pipe 7, and the heat of foam plastic molding can be effectively absorbed through the cooling mechanism, so that the temperature of the cooling water can be increased, so that the heated cooling water can be transported in a direction, and the waste heat can be effectively reused.

[0033] In the utility model, the circulation of cooling water can be effectively realized through the pump body 4, so that the cooling water enters the upper end of the injection pipe 10 through the second connecting pipe 9, and as the cooling water falls, the blade 11 rotates, so that the blade 11 drives the vertical shaft 12 and the auger 14 to rotate; the cooling water that absorbs heat increases the temperature of the material in the hopper assembly 3 through the cooperation of the inner coil pipe 16 and the outer coil pipe 15, so as to reduce the energy consumption of the injection feeding assembly 2 when melting the material in the later stage;

[0034] The vertical shaft 12 can drive the auger 14 to rotate, so that the material in the hopper assembly 3 can be transported downward, and the material can stably enter the injection molding feeding assembly 2. At the same time, a corresponding feed port is set on the hopper assembly 3 to facilitate the addition of materials, and the lower end of the hopper assembly 3 is set in a cone shape to facilitate the stable descent of the material.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A waste heat recovery device for a foam plastic molding machine, comprising an injection molding feeding assembly (2), characterized in that: The feeding end of the injection molding feeding assembly (2) is connected to an injection molding die assembly (1). An inlet hopper assembly (3) is installed at the upper end of the injection molding feeding assembly (2). A feeding mechanism is provided on the inlet hopper assembly (3). A first connecting pipe (8) is provided on the feeding mechanism, and a cooling mechanism is connected to the first connecting pipe (8). Two connecting pipes (6) are provided on the cooling mechanism. One end of each connecting pipe (6) is provided with a contact pipe (22) in a penetrating manner. A fixing plate (17) is fixedly installed on the two contact pipes (22) together. An adjusting mechanism is provided on the fixing plate (17), and the adjusting mechanism is connected to the injection molding die assembly (1). One end of each contact pipe (22) is connected to a telescopic pipe (7). One of the telescopic pipes (7) is connected to the cooling mechanism. An inner disk pipe fitting (16) is installed in the inlet hopper assembly (3). The upper end of the inner disk pipe fitting (16) is connected to a bent pipe fitting (13). The bent pipe fitting (13) is arranged through the upper end of the inlet hopper assembly (3). The feeding mechanism is connected to the inner disk pipe fitting (16). The lower end of the bent pipe fitting (13) is fixedly provided with an outer disk pipe fitting (15). The outer disk pipe fitting (15) is sleeved on the inlet hopper assembly (3). The lower end of the outer disk pipe fitting (15) is fixedly provided with a second connecting pipe (9). The second connecting pipe (9) is connected to the feeding mechanism. The lower end of the inner disk pipe fitting (16) is arranged through the lower end of the inlet hopper assembly (3). The lower end of the inlet hopper assembly (3) is connected to the other telescopic pipe (7).

2. The waste heat recovery device of a foam plastic molding machine according to claim 1, characterized in that: The feeding mechanism includes an injection pipe (10) installed at the upper end of the inlet hopper assembly (3). A conversion mechanism is provided in the injection pipe (10). A vertical shaft (12) is provided on the conversion mechanism. The vertical shaft (12) is rotatably sleeved on the injection pipe (10) and the inlet hopper assembly (3). One end of the vertical shaft (12) located in the inlet hopper assembly (3) is fixedly provided with an auger part (14). The auger part (14) is located in the inner disk pipe fitting (16). The second connecting pipe (9) is arranged through the upper end of the injection pipe (10).

3. The waste heat recovery device of a foam plastic molding machine according to claim 2, characterized in that: The conversion mechanism includes a paddle (11) provided in the injection pipe (10). The paddle (11) is fixed to one end of the vertical shaft (12) located in the injection pipe (10). The first connecting pipe (8) is arranged through one side of the lower end of the injection pipe (10).

4. The waste heat recovery device of a foam plastic molding machine according to claim 1, characterized in that: The cooling mechanism includes a cooling water tank assembly (5) arranged through the upper end of the first connecting pipe (8). One end of the cooling water tank assembly (5) is connected to a pump body (4). One of the telescopic pipes (7) is connected to the pump body (4).

5. The waste heat recovery device of a foam plastic molding machine according to claim 1, characterized in that: The adjusting mechanism includes a sliding groove (18) provided on one side of the fixing plate (17). A slider (21) is slidably installed in the sliding groove (18). A swing rod (19) is rotatably connected to the slider (21). The swing rod (19) is rotatably connected to the injection molding die assembly (1). An electric telescopic rod (20) is rotatably connected between the injection molding die assembly (1) and the swing rod (19).

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