Automatic feeding device of double-screw extruder for plastic particles

Abstract

An automatic feeding device of a double-screw extruder for plastic particles is characterized by comprising an extruder body, a feeding hopper is arranged on the extruder body, a supporting frame is arranged beside the extruder body, a stock bin is arranged on the supporting frame, a discharging port is formed in the stock bin, a connecting and guiding groove is formed outside the discharging port, and a feeding hopper is arranged on the connecting and guiding groove. A connecting block is arranged on the support frame; when the raw materials in the material collecting groove fall downwards through the inclined surface of the guiding groove, enter the material collecting groove through the top end of the material blocking plate and fall onto the turnover plate, the turnover plate and the material collecting groove are kept in a closed state through the magnetic attraction effect of the turnover plate and the magnet at the bottom of the material collecting groove and the gravity effect of the material blocking plate at the moment, and when the raw materials in the material collecting groove reach a certain weight, the turnover plate is turned off. The raw materials in the material collecting groove fall into the feeding hopper of the extruder body, the turnover plate returns to the original position under the gravity action of the material blocking plate, the material blocking plate falls down, the raw materials continue to enter the material collecting groove, the materials with the fixed weight can be accurately added, and meanwhile the structure is simple, and operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of twin-screw extruders, in particular to an automatic feeding device for a twin-screw extruder for plastic particles. Background Art

[0002] With the rapid development of the social economy, the use range of plastics has become wider and wider, driving the popularization of the automation of production lines in the plastic processing industry for high-efficiency production. Plastic processing is a highly comprehensive technical industry. The components of plastic processing raw materials are diverse, and the component ratios of raw materials for each plastic product are not the same. The weighing and blending of the component ratios of plastic processing raw materials are completely independent manual operation processes. The operation process is detailed and cumbersome, with a large labor intensity, which seriously restricts the improvement of plastic processing production capacity;

[0003] However, the feeding devices of existing extruders are not accurate enough for feeding materials with a fixed weight, and at the same time, the structure is complex and inconvenient to operate. To solve the above problems, an automatic feeding device for a twin-screw extruder for plastic particles is proposed. Summary of the Utility Model

[0004] According to the above existing technical problems, the utility model provides an automatic feeding device for a twin-screw extruder for plastic particles, which is characterized by including an extruder body, a feeding hopper, a support frame, a material bin, a discharge port, a guiding trough, a connecting block, an aggregate trough, a folding plate, a counterweight trough, a magnet, and a baffle plate. The feeding hopper is arranged on the extruder body, the support frame is arranged beside the extruder body, the material bin is arranged on the support frame, the discharge port is arranged on the material bin, the guiding trough is arranged outside the discharge port, the connecting block is arranged on the support frame, the aggregate trough is arranged on the connecting block, the folding plate is arranged below the aggregate trough, the counterweight trough is arranged below the folding plate, the magnet is arranged on the aggregate trough, and the baffle plate is arranged on the folding plate;

[0005] Further, the discharge port is fixedly connected to the guiding trough. The guiding trough is in an inverted trapezoid shape, the lower part of the inclined surface of the guiding trough contacts the baffle plate, and the outer side of the baffle plate contacts the aggregate trough;

[0006] Further, there is an opening below the aggregate trough. The magnet is arranged on the outer side of the bottom surface of the aggregate trough. The folding plate is arranged at the bottom of the aggregate trough through a rotating shaft. The connection part of the folding plate and the aggregate trough is located at one end of the aggregate trough close to the material bin. There is a counterweight trough on the lower surface of the folding plate. The folding plate is made of an iron thin plate;

[0007] Further, one end of the folding plate close to the material bin extends out of the aggregate trough. The bottom end of the baffle plate contacts the extended part of the folding plate, and the top end is located between the guiding trough and the aggregate trough. The baffle plate is made of a metal material.

[0008] Beneficial effects of the utility model:

[0009] The material collecting trough is then lifted up by the hopper, and the material in the hopper is lifted up by the hopper, and the material in the hopper is then lifted up by the hopper. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the overall structure of an automatic feeding device for a twin-screw extruder for plastic particles according to the utility model;

[0011] Figure 2 This is a partial structural schematic diagram of an automatic feeding device for a twin-screw extruder for plastic particles according to the utility model;

[0012] Figure 3 This is a schematic diagram of the use structure of an automatic feeding device for a twin-screw extruder for plastic particles in the utility model. Figure 1 ;

[0013] Figure 4 This is a schematic diagram of the use structure of an automatic feeding device for a twin-screw extruder for plastic particles in the utility model. Figure 2 ;

[0014] As shown in the figure: 1 extruder body, 2 hopper, 3 support frame, 4 silo, 5 discharge port, 6 receiving trough, 7 connecting block, 8 collecting trough, 9 folding plate, 10 counterweight trough, 11 magnet, 12 baffle plate. DETAILED DESCRIPTION

[0015] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0016] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0017] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, the technical features involved in the different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0018] Example 1

[0019] The utility model provides an automatic feeding device for a twin-screw extruder for plastic particles, which is characterized by comprising an extruder body 1, a feed hopper 2, a support frame 3, a silo 4, a discharge port 5, a receiving groove 6, a connecting block 7, a collection trough 8, a folding plate 9, a counterweight groove 10, a magnet 11, and a baffle plate 12. The feed hopper 2 is arranged on the extruder body 1, the support frame 3 is arranged beside the extruder body 1, the silo 4 is arranged on the support frame 3, the discharge port 5 is arranged on the silo 4, the receiving groove 6 is arranged outside the discharge port 5, the connecting block 7 is arranged on the support frame 3, the collection trough 8 is arranged on the connecting block 7, the folding plate 9 is arranged below the collection trough 8, the counterweight groove 10 is arranged below the folding plate 9, the collection trough 8 is arranged with a magnet 11, and the baffle plate 12 is arranged on the folding plate 9;

[0020] Furthermore, the discharge port 5 is fixedly connected to the receiving groove 6, the receiving groove 6 is in an inverted trapezoid, the lower part of the inclined surface of the receiving groove 6 contacts the material baffle plate 12, and the outer side of the material baffle plate 12 contacts the collecting groove 8;

[0021] Furthermore, there is an opening below the collecting trough 8, a magnet 11 is arranged on the outer side of the bottom surface of the collecting trough 8, a folding plate 9 is arranged at the bottom of the collecting trough 8 through a rotating shaft, the connection of the folding plate 9 with the collecting trough 8 is located at one end of the collecting trough 8 close to the silo 4, a counterweight groove 10 is arranged on the lower surface of the folding plate 9, and the folding plate 9 is a thin iron plate;

[0022] Furthermore, one end of the folding plate 9 close to the storage bin 4 extends out of the aggregate chute 8. The bottom end of the baffle plate 12 contacts the extended part of the folding plate 9, and the top end is located between the guiding chute 6 and the aggregate chute 8. The baffle plate 12 is made of metal.

[0023] Embodiment 2

[0024] During use, the plastic raw materials in the storage bin 4 enter the guiding chute 6 from the discharge port 5, slide down along the inclined surface of the guiding chute 6, enter the aggregate chute 8 through the top end of the baffle plate 12, and fall onto the folding plate 9. At this time, the folding plate 9 is kept in a closed state with the aggregate chute 8 through the magnetic attraction of the magnet 11 at the bottom of the aggregate chute 8 and the self-gravity of the baffle plate 12. When the raw materials in the aggregate chute 8 reach a certain weight, the downward force on the folding plate 9 is greater than the magnetic attraction and gravity, and the folding plate 9 folds downward. At this time, the baffle plate 12 receives an upward force from the folding plate 9 and rises from between the guiding chute 6 and the aggregate chute 8 to block the raw materials in the storage bin 4 from entering the aggregate chute 8 any more. The raw materials in the aggregate chute 8 fall into the feeding hopper 2 of the extruder body 1 for processing. At this time, all the raw materials on the folding plate 9 fall off, and the folding plate 9 returns to its original position under the self-gravity of the baffle plate 12, and the baffle plate 12 drops, and the raw materials continue to enter the aggregate chute 8. When it is necessary to adjust the weight of the dropped raw materials, counterweights are added to the counterweight groove 10 to change the weight of the dropped raw materials.

[0025] The above shows and describes the basic principles, main features and advantages of the present invention. Each component mentioned in the present invention is a common technology in the existing field. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic feeding device for a twin-screw extruder for plastic pellets, characterized in that, It includes an extruder body, a feed hopper, a support frame, a silo, a discharge port, a guiding trough, a connecting block, an aggregate trough, a folding plate, a counterweight trough, a magnet, and a baffle plate. The feed hopper is arranged on the extruder body. The support frame is arranged beside the extruder body. The silo is arranged on the support frame. The discharge port is arranged on the silo. The guiding trough is arranged outside the discharge port. The connecting block is arranged on the support frame. The aggregate trough is arranged on the connecting block. The folding plate is arranged below the aggregate trough. The counterweight trough is arranged below the folding plate. The magnet is arranged on the aggregate trough. The baffle plate is arranged on the folding plate.

2. The automatic feeding device for a twin-screw extruder for plastic particles according to claim 1, characterized in that, The discharge port is fixedly connected to the guiding trough. The guiding trough is in an inverted trapezoid shape. The lower part of the inclined surface of the guiding trough contacts the baffle plate. The outer side of the baffle plate contacts the aggregate trough.

3. The automatic feeding device for a twin-screw extruder for plastic pellets according to claim 2, characterized in that, There is an opening below the aggregate trough. The magnet is arranged on the outer side of the bottom surface of the aggregate trough. The folding plate is arranged at the bottom of the aggregate trough through a rotating shaft. The connection part of the folding plate and the aggregate trough is located at one end of the aggregate trough close to the silo. The counterweight trough is arranged on the lower surface of the folding plate. The folding plate is a thin iron plate.

4. The automatic feeding device for a twin-screw extruder for plastic pellets according to claim 3, characterized in that, One end of the folding plate close to the silo extends out of the aggregate trough. The bottom end of the baffle plate contacts the extended part of the folding plate, and the top end is located between the guiding trough and the aggregate trough. The baffle plate is made of metal.

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