A feeding device for PVC pipe production

Abstract

This utility model discloses a feeding device for PVC pipe production, comprising: an extruder body; a storage silo connected to the feed inlet of the extruder body; a feeding silo located on one side of the extruder body; a negative pressure pipe connecting the feeding silo and the storage silo, wherein a negative pressure fan is connected to the negative pressure pipe; and a weighing component located on the feeding silo for weighing materials. The advantages of this utility model are that it allows for the sequential weighing of different materials using the weighing component, resulting in accurate weighing data, avoiding uneven material proportions that could affect product quality, filtering materials to prevent clumping and impurities from entering, thus improving production quality, facilitating impurity removal, and increasing work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of PVC pipe production technology, specifically to a feeding device for PVC pipe production. Background Technology

[0002] Utility model application CN201721007082.8 discloses a feeding device for PVC pipe production. It includes a feeding hopper, a feeder, a storage hopper, and a discharge device. The storage hopper is also equipped with a high-level limit switch, a timer, an alarm, and a controller. The controller uses the high-level height information provided by the high-level limit switch to stop the feeding motor of the feeder, thus stopping the feeding process.

[0003] The above-mentioned device feeds materials through a feeder. The materials are placed in the feeding hopper. The extrusion of PVC pipes requires different materials. The inability to control the amount of different materials can easily lead to uneven material ratios, affecting product quality. The filter screen cannot be disassembled, making it inconvenient to clean the materials and impurities on the filter screen. The materials can easily clog the filter screen pores, reducing work efficiency. Utility Model Content

[0004] The purpose of this invention is to solve the above-mentioned problems by designing a feeding device for PVC pipe production.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A feeding device for PVC pipe production, comprising:

[0007] Extruder body;

[0008] A storage bin, which is connected to the feed inlet of the extruder body;

[0009] A feeding hopper is located on one side of the extruder body;

[0010] A negative pressure pipeline connects the feeding hopper and the storage hopper, and a negative pressure fan is connected to the negative pressure pipeline;

[0011] A weighing component is provided on the feeding hopper and is used to weigh materials.

[0012] Furthermore, the weighing assembly includes a weighing bin, with fixed support plates installed on the left and right sides of the feeding bin, and weighing bases installed on the two fixed support plates. Weighing sensors are installed on the weighing bases, and the weighing bin is located between the two weighing bases. Weighing pressure plates are fixedly installed on both sides of the weighing bin, and the weighing pressure plates are connected to the weighing sensors. A flap valve is installed on the discharge port of the weighing bin, and the discharge port of the weighing bin is located above the feeding bin.

[0013] Furthermore, the weighing assembly also includes a filter screen, an L-shaped fixing plate is installed on the top of the fixed support plate, a shock absorber is installed at the bottom of the cross arm end of the L-shaped fixing plate, an L-shaped support plate is installed at the bottom of the shock absorber, the filter screen is located on the two L-shaped support plates, the filter screen is located inside the weighing chamber, a reinforcing base plate is installed at the bottom center of the filter screen, and a small vibration motor is installed at the bottom of the reinforcing base plate.

[0014] Furthermore, limit blocks are installed on both sides of the bottom of the filter screen, and the bottom of the limit blocks is provided with limit grooves. A protrusion is installed on the L-shaped support plate, and the protrusion is located in the limit groove. An inclined guide plate is installed on the inner wall of the filter screen, and the other side of the inclined guide plate is located outside the limit block.

[0015] The limiting groove at the bottom of the limiting block matches the protrusion. After the filter screen is placed on the L-shaped support plate, it prevents the filter screen from moving left and right on the L-shaped support plate and limits the filter screen. The inclined guide plate is located above the limiting block and guides the material to prevent the material from remaining on the limiting block.

[0016] Furthermore, a high-level sensor is installed above the inner wall of the storage silo, and a low-level sensor is installed below the inner wall of the storage silo.

[0017] The height of the material is detected by high-level and low-level sensors.

[0018] Furthermore, the width of the filter screen is smaller than the distance between the two L-shaped fixing plates, and lifting handles are installed on both sides inside the filter screen.

[0019] The filter screen can be easily picked up by lifting the handle, making it easy to remove from the weighing chamber, facilitating disassembly and assembly of the filter screen, and making it easy to clean the material and impurities inside the filter screen, thus improving work efficiency.

[0020] Compared with existing technologies, this technical solution has the following beneficial effects:

[0021] 1. The materials to be used are poured into the weighing bin in sequence. The materials are weighed by the weighing sensor. The weighing data is accurate. Different materials are weighed in sequence to avoid uneven material ratios affecting product quality.

[0022] 2. The material is filtered through a filter screen. Clumped material and impurities remain on the filter screen, while qualified material passes through the filter screen and falls into the weighing bin, improving production quality. A small vibrating motor vibrates the filter screen, allowing the material to pass through quickly and preventing the material from clogging the filter screen pores, thus improving the filtration effect. The reinforced base plate increases the strength of the filter screen and prevents it from bending and deforming. Attached Figure Description

[0023] Figure 1 This is an enlarged sectional view of the weighing component.

[0024] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle.

[0025] Figure 3 This is a cross-sectional view of the storage silo and the loading silo.

[0026] In the diagram: 1. Extruder body; 2. Storage bin; 3. Feeding bin; 4. Negative pressure pipeline; 5. Negative pressure fan; 6. Weighing assembly; 7. Weighing bin; 8. Fixed support plate; 9. Weighing base; 10. Weighing sensor; 11. Weighing pressure plate; 12. Flip valve; 13. Filter screen; 14. L-shaped fixed plate; 15. Shock absorber; 16. L-shaped support plate; 17. Reinforced base plate; 18. Small vibration motor; 19. Limiting block; 20. Limiting groove; 21. Protrusion; 22. Inclined guide plate; 23. High position sensor; 24. Low position sensor; 25. Lifting handle. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments 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 protection scope of this utility model.

[0028] In the description of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, in the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] This utility model provides, for example Figure 1-3 The feeding device shown includes:

[0030] Extruder body 1;

[0031] Storage bin 2, which is connected to the feed inlet of extruder body 1;

[0032] Feeding bin 3 is located on one side of the extruder body 1;

[0033] Negative pressure pipeline 4, which connects the feeding hopper 3 and the storage hopper 2, and a negative pressure fan 5 is connected to the negative pressure pipeline 4;

[0034] Weighing component 6 is provided on the feeding hopper 3 and is used to weigh materials.

[0035] The weighing component 6 weighs different materials in sequence to avoid uneven material ratios affecting product quality. After weighing, the materials fall into the feeding hopper 3. When feeding is required, the negative pressure fan 5 starts to work, and the negative pressure pipeline 4 generates negative pressure to transport the materials in the feeding hopper 3 to the storage hopper 2, and then feeds the materials to the extruder body 1 through the storage hopper 2.

[0036] Refer to the instruction manual appendix Figure 1 Included with instruction manual Figure 3 The weighing assembly 6 includes a weighing chamber 7. Fixed support plates 8 are installed on the left and right sides of the feeding chamber 3. Weighing bases 9 are installed on the two fixed support plates 8. Weighing sensors 10 are installed on the weighing bases 9. The weighing chamber 7 is located between the two weighing bases 9. Weighing pressure plates 11 are fixedly installed on both sides of the weighing chamber 7. The weighing pressure plates 11 are connected to the weighing sensors 10. A flap valve 12 is installed on the discharge port of the weighing chamber 7. The discharge port of the weighing chamber 7 is located above the feeding chamber 3.

[0037] The required materials are poured into the weighing bin 7 in sequence. The weighing bin 7 is pressed onto the weighing sensor 10 by the weighing plate 11. The weighing sensor 10 weighs the materials. The weighing data is accurate. Different materials are weighed in sequence to avoid uneven material ratios affecting product quality. After weighing is completed, the flap valve 12 is opened, and the materials in the weighing bin 7 fall into the feeding bin 3.

[0038] Refer to the instruction manual appendix Figure 1 Included with instruction manual Figure 2 The weighing assembly 6 also includes a filter screen 13. An L-shaped fixing plate 14 is installed on the top of the fixed support plate 8. A shock absorber 15 is installed at the bottom of the horizontal arm end of the L-shaped fixing plate 14. An L-shaped support plate 16 is installed at the bottom of the shock absorber 15. The filter screen 13 is located on the two L-shaped support plates 16. The filter screen 13 is located inside the weighing chamber 7. A reinforcing base plate 17 is installed at the bottom center of the filter screen 13. A small vibration motor 18 is installed at the bottom of the reinforcing base plate 17.

[0039] When the material is poured into the weighing chamber 7, it first falls onto the filter screen 13, where it is filtered. Clumped material and impurities remain on the filter screen 13. The filter screen 13 is fixed by an L-shaped fixing plate 14, a shock absorber 15, and an L-shaped support plate 16. The weight is pressed onto the fixed support plate 8, preventing the weight from being applied to the weighing chamber 7. Qualified material passes through the filter screen 13 and falls into the weighing chamber 7, preventing clumped material and impurities from entering the weighing chamber 7 and improving production quality. When filtering the material, a small vibration motor 18 starts working, causing the filter screen 13 to vibrate. This allows the material to pass through the filter screen 13 quickly, preventing the material from clogging the filter holes and improving the filtration effect. The strength of the filter screen 13 is increased by the reinforcing base plate 17, preventing the filter screen 13 from bending or deforming.

[0040] Refer to the instruction manual appendix Figure 2 Limiting blocks 19 are installed on both sides of the bottom of the filter screen 13. The bottom of the limiting block 19 is provided with a limiting groove 20. A protruding block 21 is installed on the L-shaped support plate 16. The protruding block 21 is located in the limiting groove 20. An inclined guide plate 22 is installed on the inner wall of the filter screen 13. The other side of the inclined guide plate 22 is located outside the limiting block 19.

[0041] The limiting groove 20 at the bottom of the limiting block 19 matches the protrusion 21. After the filter screen 13 is placed on the L-shaped support plate 16, the filter screen 13 is prevented from moving left and right on the L-shaped support plate 16, thus limiting the filter screen 13.

[0042] Refer to the instruction manual appendix Figure 3 A high-level sensor 23 is installed on the upper part of the inner wall of the storage bin 2, and a low-level sensor 24 is installed on the lower part of the inner wall of the storage bin 2.

[0043] The height of the material is detected by the high-level sensor 23 and the low-level sensor 24. When the material reaches the low-level sensor 24, feeding begins into the storage bin 2. When the material reaches the high-level sensor 23, feeding stops.

[0044] Refer to the instruction manual appendix Figure 2 The width of the filter screen 13 is smaller than the distance between the two L-shaped fixing plates 14, and the filter screen 13 has lifting handles 25 installed on both sides inside.

[0045] The filter screen 13 can be easily picked up by lifting the handle 25, making it easy to remove the filter screen 13 from the weighing chamber 7, facilitating the disassembly and assembly of the filter screen 13, and making it easy to clean the materials and impurities inside the filter screen 13, thus improving work efficiency.

[0046] Although the present invention 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; and these 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 the present invention.

Claims

1. A feeding device for PVC pipe production, characterized in that, include: Extruder body (1); Storage bin (2), which is connected to the feed inlet of the extruder body (1); Feeding bin (3), the feeding bin (3) is located on one side of the extruder body (1); Negative pressure pipe (4), which connects the feeding silo (3) and the storage silo (2), and a negative pressure fan (5) is connected to the negative pressure pipe (4). Weighing component (6), which is located on the feeding hopper (3), is used to weigh materials.

2. The feeding device for PVC pipe production according to claim 1, characterized in that, The weighing assembly (6) includes a weighing bin (7), fixed support plates (8) are installed on the left and right sides of the feeding bin (3), weighing bases (9) are installed on the two fixed support plates (8), weighing sensors (10) are installed on the weighing bases (9), the weighing bin (7) is located between the two weighing bases (9), weighing pressure plates (11) are fixedly installed on both sides of the weighing bin (7), the weighing pressure plates (11) are connected to the weighing sensors (10), a flap valve (12) is installed on the outlet of the weighing bin (7), and the outlet of the weighing bin (7) is located above the feeding bin (3).

3. The feeding device for PVC pipe production according to claim 2, characterized in that, The weighing assembly (6) also includes a filter screen (13), an L-shaped fixing plate (14) is installed on the top of the fixed support plate (8), a shock absorber (15) is installed at the bottom of the cross arm end of the L-shaped fixing plate (14), an L-shaped support plate (16) is installed at the bottom of the shock absorber (15), the filter screen (13) is located on the two L-shaped support plates (16), the filter screen (13) is located in the weighing chamber (7), a reinforcing base plate (17) is installed at the center of the bottom of the filter screen (13), and a small vibration motor (18) is installed at the bottom of the reinforcing base plate (17).

4. The feeding device for PVC pipe production according to claim 3, characterized in that, Limiting blocks (19) are installed on both sides of the bottom of the filter screen (13). The bottom of the limiting block (19) is provided with a limiting groove (20). A protruding block (21) is installed on the L-shaped support plate (16). The protruding block (21) is located in the limiting groove (20). An inclined guide plate (22) is installed on the inner wall of the filter screen (13). The other side of the inclined guide plate (22) is located outside the limiting block (19).

5. The feeding device for PVC pipe production according to claim 1, characterized in that, A high-level sensor (23) is installed above the inner wall of the storage silo (2), and a low-level sensor (24) is installed below the inner wall of the storage silo (2).

6. The feeding device for PVC pipe production according to claim 3, characterized in that, The width of the filter screen (13) is smaller than the distance between the two L-shaped fixing plates (14), and the filter screen (13) has lifting handles (25) installed on both sides inside.

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