Feeding device of bulking machine

Abstract

The utility model provides a bulking machine feeding device which comprises a first conveying auger, a pulverizer and a second conveying auger which are arranged on a machine frame, an outlet of the pulverizer is communicated with an inlet of the second conveying auger, a feeding hopper is arranged on the upper portion of the first conveying auger, and a vibrating hopper is arranged on the upper portion of the feeding hopper. An angle-adjustable automatic screening mechanism is arranged in the vibration hopper and used for automatically screening materials and guiding caked materials stacked on the automatic screening mechanism into the pulverizer, and the automatic screening mechanism comprises a screening assembly, a discharging assembly and an elastic supporting assembly. According to the utility model, the angle-adjustable automatic screening mechanism is matched with the vibration hopper to realize efficient and automatic screening operation of materials, and caked materials accumulated on the automatic screening mechanism can be guided into the crusher to be subjected to automatic secondary crushing operation, so that an operator does not need to regularly clean a screen; the screening efficiency is greatly improved, more time and labor are saved, and operation is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of feeding equipment, in particular to a feeding device for an extruder. Background Art

[0002] An extruder belongs to a device for processing puffed foods, such as processing rice, corn, soybeans, wheat, etc. in daily life. When the extruder operates, a feeding device is required to continuously transport raw materials. The Chinese patent with the publication number CN2561746Y discloses a feeding device for an extruder, which includes a conveying auger, a driving motor I, and a cylinder I with inlet and outlet openings. It is characterized in that it further includes a forced feeding mechanism, which is connected in series between the conveying auger and the extruder and consists of a cylinder II, a forced feeding auger located inside the cylinder II, and a driving motor II.

[0003] For this disclosed technology, when the feeding device of the extruder transports corn raw materials, the corn raw materials are transported into the interior of the extruder by the conveying mechanism of the feeding device for puffing processing. However, the corn raw materials often contain some residues such as broken grains. If these residues are transported into the interior of the extruder together with the corn raw materials for processing, it will undoubtedly reduce the quality of the finished product.

[0004] When the traditional feeding device is not provided with a filtering mechanism or only provided with a screen for screening operations, the screen is prone to frequent blockage, and the operator needs to regularly stop the machine to clean the materials blocked on the screen before continuing the screening operation. The operation is troublesome and the screening efficiency is low. Summary of the Utility Model

[0005] In view of this, the utility model provides a feeding device for an extruder, which can realize efficient and automatic screening operations on materials through the cooperation of an automatically adjustable screening mechanism and a vibrating hopper, and can realize the automatic secondary crushing operation of the agglomerated materials accumulated on the automatically adjustable screening mechanism into a crusher, without the operator regularly cleaning the screen, greatly improving the screening efficiency, and solving the problems that when the traditional feeding device only uses a screen for screening operations, the screen is prone to frequent blockage, and the operator needs to regularly stop the machine to clean the materials blocked on the screen before continuing the screening operation. The operation is troublesome and the screening efficiency is low.

[0006] To solve the above technical problems, the utility model provides a feeding device for an extruder, which includes a first conveying auger, a crusher, and a second conveying auger arranged on a frame. The outlet of the crusher is communicated with the inlet of the second conveying auger. An inlet hopper is arranged above the first conveying auger, and a vibrating hopper is arranged above the inlet hopper. An automatically adjustable screening mechanism is arranged inside the vibrating hopper for automatically screening materials, guiding the caked materials accumulated on the automatically adjustable screening mechanism into the crusher. The automatically adjustable screening mechanism includes a screening component, a discharging component, and an elastic support component. The utility model can realize efficient and automatic screening operation of materials through the cooperation of the automatically adjustable screening mechanism and the vibrating hopper, and can realize guiding the caked materials accumulated on the automatically adjustable screening mechanism into the crusher for automatic secondary crushing operation, without the operator regularly cleaning the screen, greatly improving the screening efficiency, being more time-saving and labor-saving, and the operation being more convenient.

[0007] The screening component includes a screen box rotatably arranged in the vibrating hopper. Multiple screen holes are opened at the bottom of the screen box. The screen box is rotatably arranged on the inner side wall of the vibrating hopper through a rotating shaft and bearings. A fixing plate is arranged on the inner side wall of the vibrating hopper and below the screen box. A first hinge seat is arranged on the fixing plate, and a second hinge seat is hinged on the first hinge seat. The upper part of the second hinge seat is fixedly arranged at the lower part of the screen box. The utility model can adjust the inclination angle of the screen box through the hinge action of the first hinge seat and the second hinge seat and the action of the rotating shaft and bearings, facilitating guiding the materials blocked on the screen holes inside the screen box to the vicinity of the discharging component of the screen box, facilitating subsequent discharging operation, reducing the frequency of screen hole blockage, and improving the screening efficiency.

[0008] The discharging component includes a discharging port arranged on the side wall of the vibrating hopper. The discharging port is arranged obliquely downward. A guide pipe is arranged inside the discharging port. The guide pipe is arranged obliquely downward and directly above the feeding port of the barrel of the crusher. The discharging component further includes a discharging opening arranged on the side wall of the screen box. The wall thickness of the lower part of the side wall of the screen box directly below the discharging opening is greater than that of the upper part. The elastic support component is arranged on the side wall of the vibrating hopper and directly below the discharging port. The utility model can, through the action of the discharging port and the guide pipe in the discharging component and the cooperation of the elastic support component, guide the materials with a pore diameter larger than the screen hole diameter at the bottom of the screen box to the discharging port through the discharging opening, and finally export them to the crusher through the guide pipe for secondary crushing operation. The operation is more convenient. Through the design that the wall thickness of the lower part of the side wall at the discharging opening of the screen box is greater than that of the upper part, it is convenient to form a certain slope during the process of the discharging opening tilting downward along the hinge seat under the hinge action of the first hinge seat and the second hinge seat and the action of the rotating shaft and bearings, as well as the impact of the blocked materials in the screen box, facilitating the blocked materials to smoothly slide out through the discharging opening, being more convenient.

[0009] The elastic support assembly is located directly below the discharge assembly. The elastic support assembly includes a support plate disposed on the inner sidewall of the vibrating hopper. A telescopic sleeve rod is provided on the support plate, and a support block is provided at the end of the output rod of the telescopic sleeve rod. The utility model can achieve elastic support for the lower part of the sieve box through the cooperation of the telescopic sleeve rod and the support block, avoiding the situation that when the material blocked inside the sieve box reaches a certain weight, the inclination angle is too large under the hinge action of the first hinge seat and the second hinge seat and the action of the rotating shaft and the bearing, resulting in the material directly falling into the feed hopper through the discharge port, causing the screening to fail.

[0010] There are two rotating shafts and bearings respectively, and the vertical plane where the axes of the two rotating shafts are located is perpendicular to the vertical plane where the axis of the discharge port is located.

[0011] The vertical plane where the axis of the first hinge seat is located is parallel to the vertical plane where the axis of the discharge port is located.

[0012] The support block is of a hemispherical structure and is in contact with the bottom of the sieve box.

[0013] The vibration motor of the vibrating hopper is arranged on the frame through a mounting plate. A plurality of shock absorbers are evenly arranged between the vibrating hopper and the feed hopper of the first conveying auger. The vibrating hopper has a structure with an upper opening larger than the lower opening, and the lower part is inserted into the inside of the feed hopper. The utility model can generate certain vibration with the vibrating hopper through the vibration of the vibration motor, and the shock absorbers can buffer the wear between the vibrating hopper and the feed hopper, thereby realizing efficient screening operation of the material in the sieve box and making the operation more convenient.

[0014] In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects:

[0015] 1. The utility model can achieve efficient and automatic screening operation of materials through the cooperation of the angle-adjustable automatic screening mechanism and the vibrating hopper, and can realize guiding the caked materials accumulated on the automatic screening mechanism into the pulverizer for automatic secondary pulverization operation. There is no need for the operator to clean the screen regularly, greatly improving the screening efficiency and solving the problems that when the traditional feeding device only sets a screen for screening operation, the screen is prone to frequent blockage, and the operator needs to stop the machine regularly to clean the blocked materials on the screen before continuing the screening operation, which is troublesome to operate and has low screening efficiency.

[0016] 2. The utility model can adjust the inclination angle of the sieve box through the hinge action of the first hinge seat and the second hinge seat and the action of the rotating shaft and the bearing, which is convenient for guiding the materials blocked on the sieve holes inside the sieve box to the vicinity of the discharge assembly of the sieve box, facilitating subsequent discharging operation, reducing the frequency of sieve hole blockage, and improving the screening efficiency.

[0017] 3. The utility model can, through the functions of the discharge port in the discharge assembly and the guide pipe, cooperate with the elastic support assembly to guide the materials with apertures larger than the sieve hole diameter at the bottom of the sieve box to the inside of the discharge port through the discharge opening, and finally export them to the pulverizer through the guide pipe for secondary pulverization operation, which is more convenient to operate. Through the design that the wall thickness of the lower part of the side wall at the discharge opening of the sieve box is greater than that of the upper part, it is convenient to form a certain slope during the process that the discharge port tilts downward along the hinge seat under the hinge action of the first hinge seat and the second hinge seat in cooperation with the functions of the rotating shaft and the bearing, as well as the impact of the blocked materials in the sieve box, so that the blocked materials can smoothly slide out through the discharge opening, which is more convenient.

[0018] 4. The utility model can realize the elastic support for the lower part of the sieve box through the telescopic sleeve rod and the support block, avoiding that when the materials blocked inside the sieve box reach a certain weight under the hinge action of the first hinge seat and the second hinge seat in cooperation with the functions of the rotating shaft and the bearing, the inclination angle is too large, resulting in the materials directly falling into the feed hopper through the discharge opening and causing the screening to fail. Brief Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of the feeding device of the puffing machine of the utility model;

[0020] Figure 2 It is a schematic structural diagram of the automatic screening mechanism in the feeding device of the puffing machine of the utility model;

[0021] Figure 3 It is a schematic structural diagram of the automatic screening mechanism in the feeding device of the puffing machine of the utility model from another perspective;

[0022] Figure 4 It is a sectional view taken along line A-A of the utility model;

[0023] Figure 5 It is a side view of the feeding device of the puffing machine of the utility model.

[0024] Description of the reference numerals: 100, frame; 200, first conveying auger; 300, pulverizer; 400, second conveying auger; 500, feed hopper; 600, vibrating hopper; 700, automatic screening mechanism; 710, screening assembly; 711, sieve box; 712, sieve holes; 713, rotating shaft; 714, bearing; 715, fixing plate; 716, first hinge seat; 717, second hinge seat; 720, discharge assembly; 721, discharge port; 722, guide pipe; 723, discharge opening; 730, elastic support assembly; 731, support plate; 732, telescopic sleeve rod; 733, support block; 800, vibrating motor; 900, shock absorber. Detailed Description of the Preferred Embodiments

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will, in conjunction with the accompanying drawings of the embodiments of the present utility model, Figures 1-5 clearly and completely describe the technical solutions of the embodiments of the present utility model. Obviously, the described embodiments are some, rather than all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present utility model fall within the scope of protection of the present utility model.

[0026] As Figures 1-5 shown: This embodiment provides a feeding device for an extruder, which includes a first conveying auger 200, a pulverizer 300, and a second conveying auger 400 disposed on a frame 100. The outlet of the pulverizer 300 is communicated with the inlet of the second conveying auger 400. An inlet hopper 500 is disposed above the first conveying auger 200, and a vibrating hopper 600 is disposed above the inlet hopper 500. An automatically adjustable angle screening mechanism 700 for automatically screening materials is disposed inside the vibrating hopper 600, and the caked materials accumulated on the automatically adjustable angle screening mechanism 700 are introduced into the pulverizer 300. The automatically adjustable angle screening mechanism 700 includes a screening assembly 710, a discharging assembly 720, and an elastic support assembly 730. The present utility model can achieve efficient and automatic screening operation of materials through the cooperation of the automatically adjustable angle screening mechanism 700 and the vibrating hopper 600, and can also achieve the automatic secondary pulverization operation of introducing the caked materials accumulated on the automatically adjustable angle screening mechanism 700 into the pulverizer 300. There is no need for the operator to regularly clean the screen, which greatly improves the screening efficiency, saves time and effort, and is more convenient to operate.

[0027] According to an embodiment of the present utility model, as Figures 1-5 shown, the screening assembly 710 includes a screen box 711 rotatably disposed in the vibrating hopper 600. A plurality of screen holes 712 are formed at the bottom of the screen box 711. The screen box 711 is rotatably disposed on the inner side wall of the vibrating hopper 600 through a rotating shaft 713 and a bearing 714. A fixing plate 715 is disposed on the inner side wall of the vibrating hopper 600 and below the screen box 711. A first hinge seat 716 is disposed on the fixing plate 715. A second hinge seat 717 is hinged to the first hinge seat 716, and the upper part of the second hinge seat 717 is fixedly disposed at the lower part of the screen box 711. The present utility model can adjust the inclination angle of the screen box 711 through the hinge action of the first hinge seat 716 and the second hinge seat 717 in cooperation with the rotating shaft 713 and the bearing 714, which is convenient for guiding the materials blocked on the screen holes 712 inside the screen box 711 to the vicinity of the discharging assembly 720 of the screen box 711, facilitating subsequent discharging operation, reducing the frequency of blockage of the screen holes 712, and improving the screening efficiency.

[0028] According to another embodiment of the present utility model, asFigure 1 and Figure 3 As shown in Figure 3 , the discharge assembly 720 includes a discharge port 721 provided on the side wall of the vibrating hopper 600. The discharge port 721 is inclined downward. A guide pipe 722 is provided in the discharge port 721. The guide pipe 722 is inclined downward and is directly above the feed inlet of the barrel of the crusher 300. The discharge assembly 720 further includes a discharge port 723 provided on the side wall of the sieve box 711. The wall thickness of the lower part of the side wall of the sieve box 711 directly below the discharge port 723 is greater than that of the upper part. The elastic support assembly 730 is provided on the side wall of the vibrating hopper 600 and is directly below the discharge port 721. The utility model can, through the action of the discharge port 721 and the guide pipe 722 in the discharge assembly 720, cooperate with the elastic support assembly 730 to guide the materials with a hole diameter at the bottom of the sieve box 711 larger than the diameter of the sieve holes 712 into the discharge port 721 through the discharge port 723, and finally export them through the guide pipe 722 into the crusher 300 for secondary crushing operation, which is more convenient. Through the design that the wall thickness of the lower part of the side wall at the discharge port 723 of the sieve box 711 is greater than that of the upper part, it is convenient to form a certain slope during the process that the discharge port 723 tilts downward along the hinge seat under the hinge action of the first hinge seat 716 and the second hinge seat 717 in cooperation with the action of the rotating shaft 713 and the bearing 714, as well as the impact of the blocked materials in the sieve box 711, so that the blocked materials can smoothly slide out through the discharge port 723, which is more convenient.

[0029] According to another embodiment of the present utility model, as Figure 3 and Figure 4 shown in Figure 4 , the elastic support assembly 730 is located directly below the discharge assembly 720. The elastic support assembly 730 includes a support plate 731 provided on the inner side wall of the vibrating hopper 600. A telescopic sleeve rod 732 is provided on the support plate 731. The telescopic sleeve rod 732 includes a fixed cylinder, a spring inside the fixed cylinder, and a top rod above the spring. A support block 733 is provided at the end of the output rod of the telescopic sleeve rod 732. The support block 733 is of a hemispherical structure and is in contact with the bottom of the sieve box 711. The support block 733 should be selected as a non-slip and wear-resistant rubber block. The utility model can, through the telescopic sleeve rod 732 in cooperation with the support block 733, realize the elastic support for the lower part of the sieve box 711, and avoid the situation that when the materials blocked inside the sieve box 711 reach a certain weight, the inclination angle is too large under the hinge action of the first hinge seat 716 and the second hinge seat 717 in cooperation with the action of the rotating shaft 713 and the bearing 714, resulting in the materials directly falling into the feed hopper 500 through the discharge port 723, causing the screening to fail.

[0030] According to another embodiment of the present utility model, as Figure 1 and Figure 2As shown, there are two rotating shafts 713 and two bearings 714 respectively. The vertical plane where the axes of the two rotating shafts 713 are located is perpendicular to the vertical plane where the axis of the discharge port 723 is located. The vertical plane where the axis of the first hinge seat 716 is located is parallel to the vertical plane where the axis of the discharge port 723 is located. The purpose of this is to facilitate the realization that while the sieve box 711 rotates along the rotating shaft 713, the discharge port 723 and the discharge opening 721 are always on the same vertical line, facilitating the smooth discharge operation of the material.

[0031] The vibration motor 800 of the vibrating hopper 600 is arranged on the frame 100 through a mounting plate. A plurality of shock absorbers 900 are evenly arranged between the vibrating hopper 600 and the feed hopper 500 of the first conveying auger 200. According to another embodiment of the present invention, as Figure 1 and Figure 5 shown, the vibrating hopper 600 has a structure with an upper opening larger than the lower opening, and the lower part is inserted into the interior of the feed hopper 500. The present invention can drive the vibrating hopper 600 to generate certain vibrations through the vibration of the vibration motor 800, thereby realizing the efficient screening operation of the material in the sieve box 711, and the operation is more convenient.

[0032] The usage method of the present invention:

[0033] First of all, it should be clear that the feeding device involved in the present utility model is mainly used for screening and feeding operations of various granular and powdery materials. Taking the feeding of powdery materials used in an extruder as an example, the usage method of the present utility model is elaborated in detail. When feeding operations are required, first start the first conveying auger 200, the pulverizer 300, and the second conveying auger 400 to work, and then start the vibration motor 800 of the vibrating hopper 600 to work. At this time, the vibrating hopper 600 will drive the automatic screening mechanism 700 inside it to vibrate. Then, the materials to be fed are introduced into the screening box 711 inside the vibrating hopper 600. The materials smaller than the aperture of the screen mesh will fall through the screen holes 712 into the vibrating hopper 600 and finally enter the first conveying auger 200 and be introduced into the extruder for processing. The caked materials larger than the aperture of the screen mesh will be blocked and isolated in the screening box 711. With the accumulation of the caked materials in the screening box 711, and with the cooperation of the hinge action of the first hinge seat 716 and the second hinge seat 717 and the action of the rotating shaft 713 and the bearing 714, the gravity of the accumulated materials will press the screening box 711 to rotate downward along the rotating shaft 713. The caked materials will enter the discharge port 723 through the discharge opening 721, slide out through the discharge port 721 to the guide pipe 722, and finally enter the pulverizer 300 to be pulverized twice and then discharged. During this process, the elastic support assembly 730 will generate an upward elastic support for the screening box 711 to prevent its inclination angle from being too large, resulting in the materials directly falling into the feed hopper 500 through the discharge port 723, causing the screening to fail. The present utility model can realize efficient and automatic screening operations of materials through the cooperation of the angle-adjustable automatic screening mechanism 700 and the vibrating hopper 600, and can also realize the automatic secondary pulverization operation of the caked materials accumulated on the automatic screening mechanism 700 by introducing them into the pulverizer 300. There is no need for the operator to clean the screen regularly, which greatly improves the screening efficiency and solves the problems that when the traditional feeding device only sets a screen for screening operations, the screen is prone to frequent blockage, and the operator needs to stop the machine regularly to clean the blocked materials on the screen before continuing the screening operation, which is troublesome to operate and has low screening efficiency.

[0034] In addition, it should also be noted that in the description of the present utility model, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0035] The above are the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model.

Claims

1. A feeding device for an extruder. The feeding device includes a first conveying auger (200), a crusher (300) and a second conveying auger (400) arranged on a frame (100). The outlet of the crusher (300) is communicated with the inlet of the second conveying auger (400). A feed hopper (500) is arranged above the first conveying auger (200), and it is characterized in that: An oscillating hopper (600) is provided at the upper part of the feeding hopper (500). An automatic screening mechanism (700) with adjustable angle is provided inside the oscillating hopper (600) for automatically screening materials. The caked materials accumulated on the automatic screening mechanism (700) are introduced into the crusher (300). The automatic screening mechanism (700) includes a screening assembly (710), a discharging assembly (720) and an elastic support assembly (730).

2. The feeding device of the extruder according to claim 1, characterized in that: The screening assembly (710) includes a screening box (711) rotatably arranged in the oscillating hopper (600). A plurality of screening holes (712) are formed at the bottom of the screening box (711). The screening box (711) is rotatably arranged on the inner side wall of the oscillating hopper (600) through a rotating shaft (713) and a bearing (714). A fixing plate (715) is arranged on the inner side wall of the oscillating hopper (600) and below the screening box (711). A first hinge seat (716) is arranged on the fixing plate (715). A second hinge seat (717) is hinged on the first hinge seat (716). The upper part of the second hinge seat (717) is fixedly arranged at the lower part of the screening box (711).

3. The feeding device of the puffing machine according to claim 2, wherein: The discharging assembly (720) includes a discharging port (721) arranged on the side wall of the oscillating hopper (600). The discharging port (721) is arranged obliquely downward. A guide pipe (722) is arranged in the discharging port (721). The guide pipe (722) is arranged obliquely downward and directly above the feeding port at the upper part of the barrel of the crusher (300). The discharging assembly (720) further includes a discharging opening (723) arranged on the side wall of the screening box (711). The wall thickness of the lower part of the side wall of the screening box (711) directly below the discharging opening (723) is greater than that of the upper part. The elastic support assembly (730) is arranged on the side wall of the oscillating hopper (600) and directly below the discharging port (721).

4. The feeding device of the puffing machine according to claim 3, characterized in that: The elastic support assembly (730) is located directly below the discharging assembly (720). The elastic support assembly (730) includes a support plate (731) arranged on the inner side wall of the oscillating hopper (600). A telescopic sleeve rod (732) is arranged on the support plate (731). A support block (733) is arranged at the end of the output rod of the telescopic sleeve rod (732).

5. The feeding device of the puffing machine according to claim 4, characterized in that: There are two rotating shafts (713) and bearings (714) respectively. The vertical planes where the axes of the two rotating shafts (713) are located are perpendicular to the vertical plane where the axis of the discharging opening (723) is located.

6. The feeding device of the puffing machine according to claim 5, characterized in that: The vertical plane where the axis of the first hinge seat (716) is located is parallel to the vertical plane where the axis of the discharging opening (723) is located.

7. The feeding device of the puffing machine according to claim 6, characterized in that: The support block (733) is of a hemispherical structure and is in contact with the bottom of the screening box (711).

8. The feeding device of the puffing machine according to claim 7, characterized in that: The vibrating motor (800) of the vibrating hopper (600) is arranged on the frame (100) through a mounting plate. A shock absorber (900) is arranged between the vibrating hopper (600) and the feed hopper (500) of the first conveying auger (200). The vibrating hopper (600) has a structure with an upper opening larger than the lower opening, and the lower part is inserted into the interior of the feed hopper (500).

Images