Automatic feeding device of extruder

Abstract

The utility model discloses an automatic feeding device of an extruder. The automatic feeding device comprises a base and a suction pipe, a negative-pressure fan is arranged at the top end of the base, an air suction head is arranged at one end of the negative-pressure fan, a mounting frame is arranged on one side of the top end of the base, and a control box is arranged at the top end of the mounting frame; a filtering structure is arranged at the top end of the air suction head, and an automatic feeding structure is arranged on one side of the base. The automatic feeding structure comprises a conveying screw rod, a supporting frame, a motor, a fixing disc, a through groove, an air suction pipe, a hopper and a material sensor. Suction force can be generated through matched use of the negative pressure draught fan and the air suction pipe, then materials are sucked into the hopper through the suction pipe, one-by-one feeding is not needed during feeding, secondary pollution of the materials is reduced, the hopper can rotate slowly according to the set speed through use of the conveying screw during discharging, and the feeding efficiency is improved. And normal blanking of crushed materials is guaranteed, bridging and material breaking are avoided, blanking is more convenient, and therefore convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic film production, in particular to an automatic feeding device for an extruder. Background Art

[0002] Plastic film is a common and widely used material. It is made of plastic and has the characteristics of small thickness, softness and toughness. There are many types of plastic films, and each type of film is suitable for different fields due to its unique physical and chemical properties. Polyethylene film has excellent physical properties, such as high tensile strength, wear resistance, chemical corrosion resistance, etc., and is widely used in food packaging, agricultural film covering, building waterproofing and other fields. Polyvinyl chloride film has good weather resistance, chemical resistance, electrical insulation and other characteristics. Polypropylene film has high strength, high temperature resistance and corrosion resistance, and is often used in food packaging, cosmetics packaging, clothing packaging and other fields.

[0003] In the process of processing plastic film, there is a step of manually loading the raw materials. Manual loading is troublesome and easy to contaminate the raw materials. In addition, a dedicated person must always watch to prevent material shortage, which is time-consuming and laborious. Therefore, an extruder automatic loading device is needed to solve the above problems. Utility Model Content

[0004] The utility model aims to provide an automatic feeding device for an extruder, which is used to solve the defects of the existing plastic film processing, that is, manual feeding is troublesome and easy to pollute the raw materials, and a special person must be always watching to prevent material shortage, which is time-consuming and laborious.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: an automatic feeding device for an extruder, comprising a base and a suction pipe; a negative pressure fan is arranged at the top of the base, a suction head is arranged at one end of the negative pressure fan, a mounting frame is arranged at one side of the top of the base, and a control box is arranged at the top of the mounting frame; a filtering structure is arranged at the top of the suction head, and an automatic feeding structure is arranged at one side of the base; the automatic feeding structure comprises a conveying screw, a support frame, a motor, a fixed plate, a through slot, a suction pipe, a hopper and a material sensor, the hopper is arranged on one side of the base, a suction pipe is arranged on one side of the hopper, an exhaust pipe is arranged at the rear end of the top of the hopper, and a cap is arranged at the bottom end of the hopper.

[0006] Preferably, a conveying screw is provided inside the hopper, a material sensor is provided at the top of the hopper, the support frame is provided on one side of the top of the hopper, a motor is provided on the top of the support frame, a fixing plate is provided on the outer side of the top of the conveying screw, a through groove is provided inside one side of the top of the hopper, and a suction pipe is provided on one side of the through groove at the top of the hopper.

[0007] Preferably, a belt is arranged on the outer side of the output end of the motor, and the other side of the belt is arranged on the outer side of the fixed disk.

[0008] Preferably, a plurality of blades are provided on the outer side of the conveying screw, and the plurality of blades are arranged at equal intervals on the outer side of the conveying screw.

[0009] Preferably, the filtering structure includes a filter box, a placement plate and a filter layer, the filter box is arranged at the top of the suction head, a placement plate is arranged inside the filter box, a filter layer is arranged on the top of the placement plate, and the top of the filter box is connected to the bottom end of the suction pipe.

[0010] Preferably, the filter layer is made of sponge.

[0011] Preferably, an outer side of the bottom end of the hopper is provided with an external thread, an inner side of the cap is provided with an internal thread, and a threaded connection is formed between the hopper and the cap.

[0012] The utility model provides an automatic feeding device for an extruder, which has the advantages of:

[0013] The coordinated use of the negative pressure fan and the suction pipe can generate suction, and then the material is sucked into the hopper through the suction pipe, so that it does not need manual loading during loading, reducing secondary contamination of the material. When the hopper is unloading, the conveying screw can be used to slowly rotate according to the set speed to ensure the normal unloading of the crushed material without bridging and breaking the material, making it more convenient when unloading, thereby improving convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of a partial cross-sectional structure of the utility model in a front view;

[0015] Figure 2 This is a front view structural schematic diagram of the utility model;

[0016] Figure 3 This is a schematic diagram of the front cross-sectional structure of the automatic feeding structure of the utility model;

[0017] Figure 4 It is a schematic diagram of a top view cross-sectional structure of the filtering structure of the utility model;

[0018] Figure 5 It is a schematic diagram of the top structure of the utility model.

[0019] In the figure: 1. base; 2. negative pressure fan; 3. suction head; 4. mounting frame; 5. suction pipe; 6. automatic feeding structure; 601. conveying screw; 602. support frame; 603. motor; 604. fixing plate; 605. through slot; 606. suction pipe; 607. hopper; 608. material sensor; 7. control box; 8. filtering structure; 801. filter box; 802. placement plate; 803. filter layer; 9. exhaust pipe; 10. cover cap. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] The utility model provides an automatic feeding device for an extruder, such as Figure 1-Figure 5 As shown, an automatic feeding device for an extruder comprises a base 1 and a suction pipe 5; a negative pressure fan 2 is arranged at the top of the base 1, a suction head 3 is arranged at one end of the negative pressure fan 2, a mounting frame 4 is arranged at one side of the top of the base 1, a control box 7 is arranged at the top of the mounting frame 4; a filtering structure 8 is arranged at the top of the suction head 3, and an automatic feeding structure 6 is arranged at one side of the base 1. In a further preferred embodiment of the utility model, as Figure 1-Figure 5 As shown: the automatic feeding structure 6 includes a conveying screw 601, a support frame 602, a motor 603, a fixing plate 604, a through slot 605, a suction pipe 606, a hopper 607 and a material sensor 608. The hopper 607 is arranged on one side of the base 1, a suction pipe 5 is arranged on one side of the hopper 607, an exhaust pipe 9 is arranged at the rear end of the top of the hopper 607, a cap 10 is arranged at the bottom end of the hopper 607, a conveying screw 601 is arranged inside the hopper 607, a material sensor 608 is arranged at the top of the hopper 607, and the support frame 60 2 is arranged on one side of the top of the hopper 607, a motor 603 is arranged on the top of the support frame 602, a fixing plate 604 is arranged on the outer side of the top of the conveying screw 601, a through slot 605 is opened inside one side of the top of the hopper 607, a suction pipe 606 is arranged on one side of the through slot 605 on the top of the hopper 607, a belt is arranged on the outer side of the output end of the motor 603, and the other side of the belt is arranged on the outer side of the fixing plate 604, and a plurality of blades are arranged on the outer side of the conveying screw 601, and the plurality of blades are arranged at equal intervals on the outer side of the conveying screw 601.

[0022] Specifically, in this embodiment: when automatic loading is performed, the control box 7 controls the start and stop to be automatic and manual. When the automatic gear is running, when the material sensor 608 detects that the material has not reached the set point, the equipment automatically runs, and the material is sucked into the hopper 607 from the suction pipe 5. When the material reaches the material sensor 608, the suction is stopped. When sucking the material, the negative pressure fan 2 is started to generate suction, and then the inside of the hopper 607 is sucked through the suction pipe 606. When the hopper 607 sucks the material, it will suck the raw material into the hopper through the suction pipe 5. Inside 607, after the material is sucked, the cap 10 is opened and the fixed plate 604 is driven to rotate by the motor 603, thereby indirectly driving the conveying screw 601 to rotate, and an automatic material discharge effect is performed. Through the above use, the labor intensity of personnel can be reduced, and there is no need for operators to pay attention to the feeding at all times. It can ensure that the hopper 607 is not short of material during production, there will be no faults, and forgetting to add material can also reduce secondary pollution of materials, effectively improve efficiency and automation, and effectively solve the loss caused by unqualified products due to unstable feeding of crushed materials.

[0023] In a further preferred embodiment of the present invention, Figure 1-Figure 5 As shown: the filtering structure 8 includes a filter box 801, a placement plate 802 and a filter layer 803. The filter box 801 is arranged at the top of the suction head 3. The placement plate 802 is arranged inside the filter box 801. The filter layer 803 is arranged on the top of the placement plate 802. The top of the filter box 801 is connected to the bottom end of the suction pipe 606. The filter layer 803 is made of sponge.

[0024] Specifically, in this embodiment, when the suction pipe 606 is inhaling air, the filter box 801 and the filter layer 803 are used in combination to filter the air to prevent impurities, dust and other materials from entering the interior of the negative pressure fan 2 and causing damage to the negative pressure fan 2, thereby completing the filtering work.

[0025] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic feeding device for an extruder, comprising a base (1) and a suction tube (5); Features: A negative pressure fan (2) is arranged at the top of the base (1), a suction head (3) is arranged at one end of the negative pressure fan (2), a mounting frame (4) is arranged at one side of the top of the base (1), and a control box (7) is arranged at the top of the mounting frame (4); A filtering structure (8) is provided at the top of the air suction head (3), and an automatic feeding structure (6) is provided at one side of the base (1); The automatic feeding structure (6) comprises a conveying screw (601), a support frame (602), a motor (603), a fixing plate (604), a through slot (605), a suction pipe (606), a hopper (607) and a material sensor (608); the hopper (607) is arranged on one side of the base (1); a suction pipe (5) is arranged on one side of the hopper (607); an exhaust pipe (9) is arranged at the rear end of the top of the hopper (607); and a cover cap (10) is arranged at the bottom end of the hopper (607).

2. The automatic feeding device for an extruder according to claim 1, characterized in that: A conveying screw (601) is arranged inside the hopper (607), a material sensor (608) is arranged at the top of the hopper (607), the support frame (602) is arranged on one side of the top of the hopper (607), a motor (603) is arranged at the top of the support frame (602), a fixing plate (604) is arranged on the outer side of the top of the conveying screw (601), a through groove (605) is opened inside one side of the top of the hopper (607), and a suction pipe (606) is arranged on one side of the through groove (605) at the top of the hopper (607).

3. The automatic feeding device for an extruder according to claim 1, characterized in that: A belt is arranged on the outer side of the output end of the motor (603), and the other side of the belt is arranged on the outer side of the fixed disk (604).

4. The automatic feeding device for an extruder according to claim 1, characterized in that: A plurality of blades are arranged on the outer side of the conveying screw (601), and the plurality of blades are arranged at equal intervals on the outer side of the conveying screw (601).

5. The automatic feeding device for an extruder according to claim 1, characterized in that: The filtering structure (8) comprises a filtering box (801), a placement plate (802) and a filtering layer (803); the filtering box (801) is arranged at the top of the suction head (3); a placement plate (802) is arranged inside the filtering box (801); a filtering layer (803) is arranged at the top of the placement plate (802); and the top of the filtering box (801) is connected to the bottom of the suction pipe (606).

6. The automatic feeding device for an extruder according to claim 5, characterized in that: The material of the filter layer (803) is sponge.

7. The automatic feeding device for an extruder according to claim 1, characterized in that: The outer side of the bottom end of the hopper (607) is provided with an external thread, and the inner side of the cover cap (10) is provided with an internal thread, so that the hopper (607) and the cover cap (10) are threadedly connected.

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