Dust-free suction equipment for feeding extruder

Abstract

The utility model discloses a dustless suction equipment for extruder feeding, including negative pressure pump, suction pipe, still include the bunker, the top of bunker is provided with the filter air groove, and the suction pipe penetrates the top of bunker and extends to the inside below of bunker and is arranged in the material collecting hopper, be provided with the fixed frame in the bunker, install the telescopic slide rail that is perpendicular to the inner wall of bunker and the knife rest that is located below the position between two telescopic slide rails on the fixed frame, the unpacking knife is fixed on the knife rest, the utility model discloses through setting up dustproof bunker, and the bunker plays the dustproof effect of isolation, and the bagged plastic particle is put in through the material box of drawing, and the packing bag of bagged plastic particle is automatically cut by unpacking knife when the material box slides into, and plastic particle falls into the material collecting hopper and the bunker below directly, and is sucked to the extruder feeding by suction pipe, and the whole process is relatively isolated with workshop environment, prevents the dust in workshop from mixing into plastic particle and is sucked into the extruder and influences pipe quality.

Description

Technical Field

[0001] This utility model relates to the field of extruder feeding technology, specifically to a dust-free feeding device for extruders. Background Technology

[0002] Plastic pipes are often produced by extruding plastic granules. The extruder is a crucial piece of equipment in plastic pipe extrusion production. During operation, the extruder is typically fed using a vacuum feeder. To feed, simply unpack the bagged plastic granules and place them into a container. Then, insert the vacuum feeder's suction pipe into the container. The vacuum feeder's negative pressure pump generates suction, drawing the plastic granules through the feed pipe into a separator for separation. Finally, the granules enter the extruder's hopper, completing the feeding process.

[0003] Because feeding plastic granules is very simple, many companies often use simple open containers, such as iron drums or plastic buckets, to save costs. However, they often overlook the important issue of dust prevention during the feeding process. Since plastic pipe production workshops are not cleanrooms, there is always some dust and dirt in the air and on the ground. This dust can easily fall into open containers and eventually be sucked into the extruded pipes along with the plastic granules, leading to a decline in pipe quality. This urgently needs improvement. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a dust-free material suction device for extruder feeding, which solves the problem that most vacuum material suction machines for extruder feeding in the prior art do not take dust prevention measures during material suction, resulting in workshop dust easily mixing into plastic particles and eventually incorporating into plastic pipes.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A dust-free feeding device for extruders includes a negative pressure pump, a separator connected to the negative pressure pump via an air extraction pipe, and a feeding pipe connected to the separator via a feed pipe. The separator is located above the feed hopper of the extruder. The device also includes a hopper with a filter air groove at the top. The feeding pipe passes through the top of the hopper and extends into a collection hopper located below the hopper.

[0007] The hopper is equipped with a fixed frame, on which are mounted telescopic slide rails perpendicular to the inner wall of the hopper and a knife holder located below the position between the two telescopic slide rails. A packing knife is fixed on the knife holder.

[0008] A material box inserted from outside the hopper is slidably connected to the telescopic slide rail. The top and bottom of the material box are open, and multiple support rods parallel to the unpacking knife are fixed on the inner wall of the material box, which are symmetrically arranged on both sides of the unpacking knife, and the multiple support rods are distributed in a V-shape.

[0009] Preferably, the silo has a square structure, and material boxes are provided on all four sides of the silo, with the material boxes on all four sides of the silo being staggered.

[0010] Preferably, a clearance groove is provided on the back of the material box at the position corresponding to the knife holder and the unpacking knife.

[0011] Preferably, the front and rear ends of the unpacking knife are both designed with smooth arcs near the top, and the blade of the unpacking knife is located at the top and is continuous from front to back.

[0012] Preferably, glass observation windows are provided on the outer walls of the silo at a position slightly below the center.

[0013] Preferably, the panel size of the material box located outside the hopper is larger than the frontal projection area of ​​the material box.

[0014] Preferably, the panel of the material box is also equipped with a handle.

[0015] Preferably, the collecting hopper is a conical hopper and the suction pipe is located in the center of the collecting hopper.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] This invention features a dustproof hopper that isolates and prevents dust accumulation. Bagged plastic granules are dispensed via a pull-out hopper. As the hopper slides in, the packaging is automatically cut open by a de-packing knife, allowing the granules to fall directly into the lower hopper and hopper. From there, they are sucked into the extruder by a suction pipe. Throughout the process, the plastic granules are relatively isolated from the workshop environment, preventing dust from mixing with them and being sucked into the extruder, thus affecting the quality of the pipes. This invention solves the problem in most existing extruder feeding vacuum suction machines that do not employ dustproof measures, leading to workshop dust easily mixing into the plastic granules and ultimately incorporating them into the plastic pipes. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a top view of the silo of this utility model;

[0020] Figure 3 This utility model Figure 2 Cross-sectional view at point AA;

[0021] Figure 4 This is a cross-sectional view of the material box and unpacking knife of this utility model;

[0022] Figure 5 This is a side sectional view of the material box and unpacking knife of this utility model.

[0023] In the diagram: 1. Negative pressure pump; 2. Air extraction pipe; 3. Separator; 4. Feed pipe; 5. Suction pipe; 6. Extruder; 601. Feed hopper; 7. Hopper; 701. Filter air trough; 8. Collection hopper; 9. Fixing frame; 10. Telescopic slide rail; 11. Knife holder; 12. Unpacking knife; 13. Material box; 1301. Clearing groove; 1302. Handle; 14. Support rod; 15. Glass observation window; 16. Bagged plastic granules. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figure 1-5 As shown, this utility model provides a technical solution: a dust-free material suction device for extruder feeding, including a negative pressure pump 1, a separator 3 connected to the negative pressure pump 1 through an air extraction pipe 2, and a suction pipe 5 connected to the separator 3 through a feed pipe 4. The separator 3 is set above the feeding hopper 601 of the extruder 6, and also includes a hopper 7. The top of the hopper 7 is provided with a filter air groove 701, which is an air exchange groove with a removable filter cloth, used to balance the internal and external air pressure during material suction. The suction pipe 5 passes through the top of the hopper 7 and extends into the collection hopper 8 set below the hopper 7. The collection hopper 8 is a conical hopper and the suction pipe 5 is located in the center of the collection hopper 8.

[0026] The hopper 7 is equipped with a fixed frame 9. The fixed frame 9 is equipped with a telescopic slide rail 10 perpendicular to the inner wall of the hopper 7 and a knife holder 11 located between the two telescopic slide rails 10. A packing knife 12 is fixed on the knife holder 11. A clearance groove 1301 is provided on the back of the material box 13 at the position corresponding to the knife holder 11 and the packing knife 12.

[0027] A material box 13 inserted from the outside of the hopper 7 is slidably connected on the telescopic slide rail 10. The hopper 7 has a square structure, and material boxes 13 are provided on all four sides of the hopper 7. The material boxes 13 on all four sides of the hopper 7 are staggered. A glass observation window 15 is provided on the outer wall of the hopper 7 at a position slightly below the center. Material can be fed from all four sides of the hopper 7, which has high feeding efficiency and is convenient to use.

[0028] The top and bottom of the material box 13 are open, and multiple support rods 14 parallel to the unpacking knife 12 are fixed on the inner wall of the material box 13. The multiple support rods 14 are arranged in a V-shape on both sides of the unpacking knife 12. The front and rear ends of the unpacking knife 12 are set with smooth arcs near the top. The blade of the unpacking knife 12 is located at the top and is continuous from front to back. The bagged plastic granules 16 along with the packaging bag are directly put into the material box 13 and pushed into the material hopper 7. During the pushing process, the plastic granule packaging bag is automatically cut by the unpacking knife 12, and the plastic granules automatically fall into the collection hopper 8 and the material hopper 7.

[0029] The panel of the material box 13 located outside the material bin 7 has a larger frontal projection area than the material box 13. After the material box 13 slides into the material bin 7, it has good sealing performance and improves dust prevention. The panel of the material box 13 is also equipped with a handle 1302, which makes it convenient to push and pull the material box 13 to feed materials and take out plastic granule packaging bags.

[0030] Working principle:

[0031] Pull out the material box 13 and place the bagged plastic granules 16 along with the packaging bag into the material box 13. The V-shaped support rods 14 support the bagged plastic granules 16 so that the middle part bends downward. During the process of pushing the material box 13 into the hopper 7, the packaging bag of the bagged plastic granules 16 is cut by the unpacking knife 12 below, and the plastic granules fall directly into the hopper 7. The negative pressure pump 1 generates negative pressure suction on the suction pipe 5 through the air extraction pipe 2, separator 3 and feed pipe 4, sucking the plastic granules in the hopper 7 and collection hopper 8 into the separator 3. After being separated, they fall into the feeding hopper 601 of the extruder 6 to complete the feeding. The filter air groove 701 can circulate air and intercept dust at the same time, so that the plastic granules inside the hopper 7 are relatively isolated from the workshop environment, effectively isolating most of the dust. During the operation of the extruder 6, plastic granules can be added at any time through the material box 13. The operation is simple and convenient.

[0032] It should be noted that, in this document, terms such as “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dust-free feeding device for extruders, comprising a negative pressure pump (1), a separator (3) connected to the negative pressure pump (1) via an air extraction pipe (2), and a suction pipe (5) connected to the separator (3) via a feed pipe (4), wherein the separator (3) is disposed above the feed hopper (601) of the extruder (6), characterized in that: It also includes a hopper (7), the top of which is provided with a filter air groove (701), and the suction pipe (5) penetrates the top of the hopper (7) and extends into the collection hopper (8) located below the interior of the hopper (7); The hopper (7) is provided with a fixed frame (9), and the fixed frame (9) is equipped with a telescopic slide rail (10) perpendicular to the inner wall of the hopper (7) and a knife holder (11) located between the two telescopic slide rails (10). A packing knife (12) is fixed on the knife holder (11). The telescopic slide rail (10) is slidably connected to a material box (13) inserted from outside the hopper (7). The top and bottom of the material box (13) are open, and multiple support rods (14) parallel to the unpacking knife (12) are fixed on the inner wall of the material box (13) and are symmetrically arranged on both sides of the unpacking knife (12). The multiple support rods (14) are distributed in a V-shape.

2. The dust-free material feeding device for extruders according to claim 1, characterized in that: The hopper (7) has a square structure, and material boxes (13) are provided on all four sides of the hopper (7), and the material boxes (13) on all four sides of the hopper (7) are staggered.

3. The dust-free material feeding device for extruders according to claim 1, characterized in that: The back of the material box (13) is provided with a clearance groove (1301) at the position corresponding to the knife holder (11) and the unpacking knife (12).

4. The dust-free material feeding device for extruders according to claim 1, characterized in that: The front and rear ends of the unpacking knife (12) are both set to a smooth arc shape near the top, and the blade of the unpacking knife (12) is located at the top and is continuous from front to back.

5. The dust-free material feeding device for extruders according to claim 1, characterized in that: Glass observation windows (15) are provided on the outer walls of the silo (7) at a position slightly below the center.

6. The dust-free material feeding device for extruders according to claim 1, characterized in that: The panel size of the material box (13) located outside the hopper (7) is larger than the projected area of ​​the material box (13).

7. The dust-free material feeding device for extruders according to claim 1, characterized in that: The panel of the material box (13) is also equipped with a handle (1302).

8. The dust-free material feeding device for extruders according to claim 1, characterized in that: The collecting hopper (8) is a cone-shaped hopper and the suction pipe (5) is located in the center of the collecting hopper (8).

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