A feeding device for extruded polystyrene board production

Abstract

This utility model discloses a feeding device for extruded polystyrene (XPS) board production, belonging to the field of XPS board processing technology. The feeding device includes a first conveying section, a second conveying section, and a collecting section. The first conveying section includes spiral fins and a conveying pipe. A pushing area is formed between the spiral fins and the conveying pipe. A fan is provided at the outlet end of the conveying pipe, and a pumping area is formed by the fan drawing material from the center of the spiral fins. A detachable collecting section is provided at the inlet end of the conveying pipe. This utility model utilizes shaftless spiral fins rotating inside the conveying pipe, minimizing the impact of pipe bending on their rotation. The pushing area formed by the spiral fins and the pipe wall, and the pumping area formed by the fan drawing material from the center of the spiral fins, work together in conjunction with different collecting sections to achieve more stable and continuous feeding of XPS board raw material particles.

Description

Technical Field

[0001] This utility model relates to the field of extruded board processing technology, and in particular to a feeding device for extruded board production. Background Technology

[0002] Extruded polystyrene (XPS) board is a closed-cell foam plastic board made primarily of polystyrene resin through an extrusion molding process. It possesses excellent thermal insulation, pressure resistance, wear resistance, and waterproof properties, and is widely used in building energy conservation, civil engineering, cold chain transportation, and other fields.

[0003] Extruded polystyrene (XPS) boards are produced by extruding raw material granules and additive powders. Currently, the main method for feeding and transporting XPS raw material granules is a screw-driven extrusion system. However, the screw has a central shaft, which limits its application to linear pipelines. This results in a fixed or limited range of motion at the feed end, necessitating constant adjustment of the raw material granules at the feed point. In some special areas, overlapping pipelines are required for material transfer, increasing pipe material consumption. Utility Model Content

[0004] This utility model provides a feeding device for extruded board production, which solves the defects of the prior art where the screw has a rotating shaft in the middle, which can only be used for straight pipelines, and some special areas need to stack pipelines for feeding, which increases the consumption of pipe materials.

[0005] This utility model provides a feeding device for extruded board production, comprising:

[0006] A first conveying section includes a conveying pipe with an inlet and an outlet. The conveying pipe has internal spiral fins that can bend with the pipe. A pushing area is formed between the spiral fins and the bottom of the conveying pipe. A second conveying section includes a blower located at the outlet of the conveying pipe. The blower is configured to create negative pressure to extract material from the inside of the conveying pipe. A pumping area is formed along the axial direction on the spiral fins. A collecting section is located at the inlet of the conveying pipe.

[0007] Optionally, a collection box is provided at the bottom of the discharge end of the conveying pipe, and an overlapping groove is provided on one side edge of the collection box, and the discharge end of the conveying pipe overlaps the edge of the collection box through the overlapping groove.

[0008] Optionally, the feed end of the conveying pipe is located at the top of the end away from the collection box. The conveying pipe is inclined, with the end away from the collection box being the low feed end and the end close to the collection box being the high discharge end. The upper side wall of the feed end has a feed port, and the lower side wall of the discharge end is fixedly connected to a discharge pipe. The blower is fixedly connected to the side of the discharge pipe away from the feed end of the conveying pipe.

[0009] Optionally, the material collection section includes a feed hopper detachably disposed at the feed end of the conveying pipe, and the feed hopper has several evenly distributed material troughs on its edge.

[0010] Optionally, the collecting part includes a detachable extraction nozzle disposed at the feed end of the conveying pipe. The extraction nozzle is connected to the feed inlet on the upper side wall of the feed end of the conveying pipe, and the extraction nozzle bends downward in a direction away from the conveying pipe.

[0011] Optionally, the two ends of the spiral fins are rotatably connected to the two ends inside the conveying pipe, and a motor for use with the spiral fins is fixedly connected to the side of the conveying pipe away from the feed end.

[0012] Optionally, the discharge end of the conveying pipe is higher than the inlet end, and the collecting section is connected to the discharge pipe through the conveying pipe.

[0013] The feeding device for extruded board production provided by this utility model has the following technical effects or advantages:

[0014] The shaftless spiral fins rotate inside the conveying pipe, and their rotation is less affected by the bending of the conveying pipe. The pushing area formed by the spiral fins and the pipe wall, and the pumping area formed by the spiral fin center and the fan are used in combination to feed the extruded board raw material particles more stably and continuously. Attached Figure Description

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

[0016] Figure 1 This is a three-dimensional schematic diagram of a feeding device for extruded board production provided in one embodiment of the present invention. Figure 1 ;

[0017] Figure 2 This is a utility model Figure 1 Enlarged view of area A in the image;

[0018] Figure 3 This is a three-dimensional schematic diagram of a feeding device for extruded board production according to this utility model. Figure 2 ;

[0019] Figure 4 This is a partial three-dimensional schematic diagram of a feeding device for extruded board production according to this utility model;

[0020] Figure 5 This is a schematic diagram of the internal structure of the conveying pipe of a feeding device for extruded board production according to this utility model.

[0021] Figure label:

[0022] 1. First conveying section; 2. Second conveying section; 3. Collection section; 4. Conveying pipe; 5. Spiral fins; 6. Pushing area; 7. Fan; 8. Pumping area; 9. Collection box; 10. Overlap groove; 11. Discharge pipe; 12. Feed hopper; 13. Bulk trough; 14. Extraction nozzle. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] As mentioned earlier, existing technologies mainly use a screw rotation and extrusion method to convey and feed raw material particles. The screw has a rotating shaft in the middle, which is only suitable for straight pipelines. This results in the feeding end being fixed or having a limited range of movement, requiring constant adjustment of the raw material particles at the feeding point. In some special areas, it is necessary to stack pipelines for material transfer, increasing the consumption of pipeline materials.

[0025] To address this, the present invention provides a feeding device for extruded board production, which allows the shaftless spiral fins 5 to rotate inside the conveying pipe 4. The pushing area 6 formed by the spiral fins 5 and the wall of the conveying pipe 4, and the pumping area 8 formed by the center of the spiral fins 5 and the fan 7 work together. The shaftless spiral fins 5 are less affected by the bending of the conveying pipe 4. With different material collection parts 3, the feeding of extruded board raw material particles is more stable and continuous.

[0026] The following is combined Figures 1-5 This utility model is described in detail. Example

[0027] like Figures 1-5As shown, this utility model provides a feeding device, especially a feeding device for extruded board production, including a first conveying section 1, a second conveying section 2 and a collecting section 3. The first conveying section 1 may include a conveying pipe 4, a spiral fin 5 and a pushing area 6. The second conveying section 2 may include a fan 7 and a pumping area 8 formed without a central shaft in the spiral fin 5. The collecting section 3 may include a feeding hopper 12 and a material extraction nozzle.

[0028] Among them, the conveying pipe 4 serves as the main pipeline for conveying extruded polystyrene (XPS) raw material particles. The conveying pipe 4 is flexible, and the spiral fins 5 installed inside the conveying pipe 4 have no central shaft. The outer edge of the spiral fins 5 is in contact with the inner wall of the conveying pipe 4. The conveying pipe 4 is like... Figure 1 and Figure 3 The inclined configuration shown includes an inlet end and an outlet end. A collection box 9 is installed at the outlet end. The collection box 9 serves as a temporary storage container for the dispersed extruded polystyrene (XPS) raw material particles. Figure 5 As shown, the outer edge of the spiral fin 5 and the bottom of the inner wall of the conveying pipe 4 form several pushing areas 6. The pushing areas 6 are combined to push the extruded board raw material particles from a low position to a high position at one end of the collection box 9. The extruded board raw material particles are fed using a contact-type mechanical conveying method.

[0029] like Figure 5 As shown, since the spiral fin 5 has no central axis, an empty cylindrical space is formed in the middle of the spiral fin 5. This space forms the pumping area 8. A fan 7 can be installed at the discharge end of the conveying pipe 4 to extract the extruded polystyrene (XPS) raw material particles from the lower part. Combined with the contact conveying of the pushing area 6, the XPS raw material particles are stacked and fed, increasing the continuity and stability of the XPS raw material particle feeding. Furthermore, since the spiral fin 5 has no central axis, the spiral fin 5 can bend within a certain range with the conveying pipe 4, increasing the feeding range of the XPS raw material particles at the bottom of the conveying pipe.

[0030] The two ends of the spiral fin 5 are rotatably connected to the two ends inside the conveying pipe 4 by a fixed circular baffle. The conveying pipe is inclined, with the end away from the collection box 9 being the low-position feeding end and the end closer to the collection box 9 being the high-position discharging end. The upper side of the feeding end has a feeding port, and the lower side of the discharging end has a discharging port and is fixedly connected to the discharging pipe 11. The discharging pipe 11 and the conveying pipe 4 cooperate to form an L-shaped pipe. The discharging port of the discharging pipe 11 is aligned with the inside of the collection box 9. A motor is fixedly connected to the outside of the high-position discharging end of the conveying pipe 4 to drive the internal spiral fin 5.

[0031] To assist in fixing the conveying pipe 4, an overlap groove 10 is opened on the upper edge of the collection box 9. The overlap groove 10 is used to clamp the conveying pipe 4. The conveying pipe 4 can be further fixed inside the overlap groove 10 by external straps and bolts.

[0032] A material collection section 3 is provided at the inlet of the conveying pipe 4. When there is a sufficient amount of extruded polystyrene (XPS) raw material particles to be fed, a feeding hopper 12 is installed at the inlet. The conveying pipe 4 at one end of the feeding hopper 12 is inserted into the interior of the XPS raw material particles. The XPS raw material particles are squeezed into the interior of the conveying pipe 4 by gravity. In order to increase the speed at which the XPS raw material particles enter the feeding hopper 12, several evenly distributed material troughs 13 are opened at the edge of the feeding hopper 12. When the feeding hopper 12 is inserted horizontally into the XPS raw material particle pile, the material troughs 13 and the edge of the feeding hopper 12 form a height difference, and the edge of the feeding hopper 12 is connected to the material troughs 13, extending the total length of the feeding edge of the feeding hopper 12 and increasing the smoothness of feeding.

[0033] When there are too few extruded polystyrene (XPS) raw material particles to submerge the feed hopper 12, the feed hopper 12 can be disassembled and replaced with an extraction nozzle 14. The suction force generated by the blower 7 is used to draw the XPS raw material particles into the conveying pipe 4. Some XPS raw material particles that fall to the bottom of the conveying pipe 4 due to gravity are conveyed by the rotation of the spiral fins 5. The pushing area 6 and the extraction area 8 are used in combination with the replaceable feed hopper 12 or extraction nozzle 14 for feeding operations.

[0034] In summary, this invention utilizes a shaftless spiral fin 5 rotating inside a conveying pipe 4. The pushing area 6 formed by the spiral fin 5 and the pipe wall of the conveying pipe 4, and the drawing area 8 formed by the center of the spiral fin 5 and the fan 7, work together in harmony. The shaftless spiral fin 5 is less affected by the bending of the conveying pipe 4, meaning that material can be saved in certain areas while still completing the feeding operation. Combined with different collecting units 3, the feeding of extruded polystyrene (XPS) raw material particles is more stable and continuous.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A feeding device for the production of extruded sheets, characterized in that, include: First conveying section (1), the first conveying section (1) includes conveying pipe (4), the conveying pipe (4) includes inlet end and outlet end, the conveying pipe (4) is provided with spiral fins (5), the spiral fins (5) can bend with the conveying pipe (4), and the spiral fins (5) and the bottom of the conveying pipe (4) form a pushing area (6). The second conveying section (2) includes a fan (7) disposed at the discharge end of the conveying pipe (4). The fan (7) is configured to form a negative pressure to extract the inside of the conveying pipe (4). The spiral fins (5) have a pumping area (8) formed along the axial direction. The material collection section (3) is located at the feed end of the conveying pipe (4).

2. The feeding device for producing an extruded sheet according to claim 1, wherein The bottom of the discharge end of the conveying pipe (4) is provided with a collection box (9), and an overlap groove (10) is provided on one side edge of the collection box (9). The discharge end of the conveying pipe (4) overlaps the edge of the collection box (9) through the overlap groove (10).

3. The feeding device for producing an extruded sheet according to claim 2, wherein The conveying pipe (4) is inclined, with the end away from the collection box (9) being the low-position feeding end and the end close to the collection box (9) being the high-position discharging end. The upper side of the feeding end has a feeding port, and the lower side of the discharging end is fixedly connected to the discharging pipe (11). The blower (7) is fixedly connected to the side of the discharging pipe (11) away from the feeding end of the conveying pipe (4).

4. The feeding device for producing an extruded sheet according to claim 1, wherein The material collection section (3) includes a feed hopper (12) that is detachably installed at the feed end of the conveying pipe (4), and the feed hopper (12) has several evenly distributed material slots (13) on its edge.

5. The feeding device for producing an extruded sheet according to claim 1, wherein The collecting part (3) includes a detachable extraction nozzle (14) disposed at the feed end of the conveying pipe (4). The extraction nozzle (14) is connected to the feed inlet on the upper side wall of the feed end of the conveying pipe (4), and the extraction nozzle (14) bends downward in a direction away from the conveying pipe (4).

6. The feeding device for extruded board production according to claim 1, characterized in that, The two ends of the spiral fin (5) are rotatably connected to the two ends inside the conveying pipe (4), and a motor that works with the spiral fin (5) is fixedly connected to the side of the conveying pipe (4) away from the feed end.

7. The feeding device for producing an extruded sheet according to claim 3, wherein The discharge end of the conveying pipe (4) is higher than the inlet end, and the collecting part (3) is connected to the discharge pipe (11) through the conveying pipe (4).

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