Novel plastic particle feeding device

Abstract

The utility model relates to a novel plastic particle feeding device, and aims to solve the technical problems that the labor amount is large, time and labor are wasted, the processing efficiency of plastic products is reduced, and plastic particles which do not conform to specifications cannot be screened, so that the melting effect of the plastic particles is influenced. Comprising a screening box and a storage box, the bottom of the screening box is communicated with an extruder, a second filter screen is installed in an inner cavity of the screening box, a notch is formed in one end of the screening box, a conveying pipe is arranged in the notch, and connecting shafts are installed at the two ends of the conveying pipe. And meanwhile, the plastic particles added into the screening box are filtered through a second filter screen, so that the added plastic particles can be filtered, and the situation that the melting effect of the plastic particles is affected by the plastic particles which do not conform to the specification is avoided.

Description

Technical Field

[0001] The utility model relates to the field of plastic particle feeding, in particular to a novel plastic particle feeding device. Background Art

[0002] Plastics are polymer compounds made from monomers through addition polymerization or condensation polymerization. They have medium deformation resistance, between that of fibers and rubbers. They are composed of synthetic resins and additives such as fillers, plasticizers, stabilizers, lubricants, and colorants. The main component of plastics is resin, which refers to polymer compounds that have not yet been mixed with various additives. The basic properties of plastics are mainly determined by the nature of the resin. In the processing of some plastic products, an extruder is required to extrude the molten plastic raw materials through the extruder. Before melting, the plastic raw materials are in solid granular form, so a plastic granule feeding device is required.

[0003] According to the patent CN215943641U, a plastic pellet feeding device for a plastic extruder comprises a bottom plate, a bottom shell is installed on one side of the top of the bottom plate, and a top shell is installed on the top of the bottom shell, and a discharge pipe is installed on the bottom of the bottom shell; the top of the discharge pipe extends to the inside of the bottom shell, and the lower part of the discharge pipe passes through the bottom plate, and the axis of the discharge pipe, the axis of the bottom shell and the axis of the top shell are all on the same vertical straight line. In the process of realizing the utility model, the inventor found that there are at least the following problems in the prior art that have not been solved. By changing the space between the bottom shell and the top shell, the following problems have been solved: The connected state allows the plastic granule raw materials stored in the top shell to enter the bottom shell, and the plastic raw materials enter the discharge pipe through the grille structure on the side wall of the discharge pipe, and are discharged by the rotating auger to complete the feeding. The conveying speed of the raw materials can be quickly changed during the processing to avoid excessive feeding. During use, the traditional method requires personnel to put the plastic into the feed port for feeding, which is labor-intensive, time-consuming and labor-intensive, reduces the processing efficiency of plastic products, and cannot screen plastic particles that do not meet the specifications, thereby affecting the melting effect of the plastic particles. For this reason, a new technical solution needs to be designed to solve the problem. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the existing technology, adapt to actual needs, and provide a new type of plastic particle feeding device to solve the technical problems that the current personnel need to put plastic into the feed port for feeding, which is labor-intensive, time-consuming and labor-intensive, reduces the processing efficiency of plastic products, and cannot screen plastic particles that do not meet the specifications, thereby affecting the melting effect of the plastic particles.

[0005] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is as follows: a new type of plastic particle feeding device is designed, including a screening box and a storage box, the bottom of the screening box is connected to the extruder, the inner cavity of the screening box is installed with a second filter screen, one end of the screening box is opened with a notch, a delivery pipe is provided in the notch, both ends of the delivery pipe are installed with connecting shafts, and the two connecting shafts are rotatably connected to the inner side of the notch;

[0006] A driving motor is installed at one end of the conveying pipe, a driving shaft is provided in the inner cavity of the conveying pipe, the driving end of the driving motor is connected to the driving shaft, a spiral blade is installed on the outside of the driving shaft, and the end of the conveying pipe close to the screening box is connected to the discharge pipe. A through hole is opened on the surface of the conveying pipe, a first filter is installed in the through hole, and a negative pressure pump is installed at one end outside the through hole.

[0007] Preferably, a discharge hole is provided at one end of the screening box, and a crushing box is installed at the end of the screening box close to the discharge hole. Two crushing rollers are rotatably connected in the crushing box, and two servo motors are installed at one end of the outer side of the crushing box. The motor shafts of the two servo motors are respectively connected to the two crushing rollers. The second filter is arranged at an angle, and a return pipe is connected to the bottom of the crushing box, and the return pipe is placed above the storage box.

[0008] Preferably, a mounting plate is installed on one side of the screening box, and an adjustment mechanism is provided between the mounting plate and the conveying pipe. The adjustment mechanism includes a fixed plate installed on the conveying pipe and a first connecting seat installed on the mounting plate. A slide groove is provided on the fixed plate, and a second connecting seat is slidably installed in the slide groove. A push rod motor is rotatably connected between the first connecting seat and the second connecting seat via a rotating shaft.

[0009] Preferably, a support plate is installed on the inner wall of the screening box below the second filter screen, a spring is installed on the support plate, and a vibration motor is installed at the bottom of the second filter screen.

[0010] Preferably, a discharge pipe is installed on the outer side of the discharge hole, and the discharge pipe is arranged obliquely.

[0011] Preferably, a shielding cover is installed at the top opening of the crushing box.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The utility model combines a negative pressure pump, a conveying pipe, a spiral blade, a driving motor, a through hole, a first filter screen, a second filter screen and other structures. By starting the negative pressure pump to generate negative pressure, the plastic particles in the inner cavity of the storage box are sucked into the suction port of the conveying pipe and adsorbed on the first filter screen. Then the driving motor is started to drive the spiral blade to rotate, so that the spiral blade pushes the plastic particles adsorbed on the first filter screen through the discharge pipe and adds them into the screening box, thereby eliminating the need for manual addition of plastic particles by personnel, thereby improving the efficiency of adding plastic particles. At the same time, the plastic particles added to the screening box are filtered through the second filter screen, thereby filtering the added plastic particles and preventing plastic particles that do not meet the specifications from affecting the melting effect of the plastic particles.

[0014] 2. The utility model combines the second filter, discharge hole, servo motor, crushing roller, servo motor, return pipe, discharge pipe and shielding cover and other structures. When the plastic particles are added into the screening box and filtered through the second filter, the plastic particles that do not meet the specifications enter the crushing box through the discharge hole and the discharge pipe, and then the crushing roller is driven by the servo motor to rotate to crush the plastic particles that do not meet the specifications. Then, the particles are added to the storage box through the return pipe for re-feeding, thereby ensuring that the plastic particles can fully meet the specifications and be added to the extruder for melting and extrusion. In addition, the shielding cover can prevent the splashing of crushed plastic particles and cause waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the connection structure between the crushing box and the shielding cover of the utility model;

[0017] Figure 3 This is a cross-sectional view of the connection between the delivery pipe and the spiral blade of the utility model;

[0018] Figure 4 This is a schematic diagram of the connection structure between the adjustment mechanism and the delivery pipe of the utility model;

[0019] Figure 5 This is a cross-sectional view of the screening box of the present utility model;

[0020] Figure 6 It is an enlarged view of point A of the present utility model.

[0021] In the figure: 1. Screening box; 11. Second filter screen; 12. Discharge hole; 13. Notch; 14. Connecting shaft; 2. Extruder; 3. Storage box; 4. Delivery pipe; 41. Drive motor; 42. Discharge pipe; 43. Negative pressure pump; 44. Drive shaft; 45. Spiral blade; 46. Through hole; 47. First filter screen; 5. Adjustment mechanism; 51. Slide; 52. Second connecting seat; 53. Push rod motor; 54. First connecting seat; 55. Fixed plate; 6. Mounting plate; 7. Crushing box; 71. Servo motor; 72. Crushing roller; 73. Discharge pipe; 74. Shielding cover; 75. Return pipe; 8. Support plate; 81. Spring; 82. Vibration motor. DETAILED DESCRIPTION

[0022] The present invention is further described below with reference to the accompanying drawings and embodiments:

[0023] Example 1: A new type of plastic particle feeding device, see Figures 1 to 4 , including a screening box 1 and a storage box 3, the bottom of the screening box 1 is connected to the extruder 2, the inner cavity of the screening box 1 is installed with a second filter 11, one end of the screening box 1 is provided with a notch 13, a delivery pipe 4 is provided in the notch 13, both ends of the delivery pipe 4 are provided with connecting shafts 14, and the two connecting shafts 14 are rotatably connected to the inner side of the notch 13; a driving motor 41 is installed at one end of the delivery pipe 4, a driving shaft 44 is provided in the inner cavity of the delivery pipe 4, the driving end of the driving motor 41 is connected to the driving shaft 44, and a spiral blade 45 is installed on the outside of the driving shaft 44, and the end of the delivery pipe 4 close to the screening box 1 is connected with a discharge pipe 42, a through hole 46 is provided on the surface of the delivery pipe 4, a first filter 47 is installed in the through hole 46, and a first filter 47 is installed on the outside of the through hole 46. A negative pressure pump 43 is installed at the end. By placing the suction end of the delivery pipe 4 into the storage box 3 and then starting the negative pressure pump 43 to generate negative pressure, the plastic particles in the inner cavity of the storage box 3 are sucked into the suction port of the delivery pipe 4 and adsorbed on the first filter 47. Then the drive motor 41 is started to drive the spiral blade 45 to rotate, so that the spiral blade 45 pushes the plastic particles adsorbed on the first filter 47 through the discharge pipe 42 and adds them to the screening box 1, thereby eliminating the need for manual addition of plastic particles by personnel, thereby improving the efficiency of plastic particle addition. At the same time, the plastic particles added to the screening box 1 are filtered through the second filter 11, so that the added plastic particles can be filtered to prevent plastic particles that do not meet the specifications from affecting the melting effect of the plastic particles.

[0024] For details, see Figure 1 、 Figure 2 and Figure 5, a discharge hole 12 is opened at one end of the screening box 1, a crushing box 7 is installed at one end of the screening box 1 near the discharge hole 12, two crushing rollers 72 are rotatably connected in the crushing box 7, two servo motors 71 are installed at one end of the outer side of the crushing box 7, the motor shafts of the two servo motors 71 are respectively connected to the two crushing rollers 72, the second filter screen 11 is tilted, the bottom of the crushing box 7 is connected to a return pipe 75, the return pipe 75 is placed above the storage box 3, a discharge pipe 73 is installed on the outer side of the discharge hole 12, the discharge pipe 73 is tilted, and the top opening of the crushing box 7 A shielding cover 74 is installed. When the plastic particles are added to the screening box 1 and filtered through the second filter 11, the plastic particles that do not meet the specifications enter the crushing box 7 through the discharge hole 12 and the discharge pipe 73, and then the servo motor 71 drives the crushing roller 72 to rotate to crush the plastic particles that do not meet the specifications, and then add them to the storage box 3 through the return pipe 75 for re-feeding, thereby ensuring that the plastic particles can fully meet the specifications and be added to the extruder for melting and extrusion. In addition, the shielding cover 74 can prevent the splashing of crushed plastic particles and cause waste.

[0025] For further information, see Figure 1 and Figure 4 A mounting plate 6 is installed on one side of the screening box 1, and an adjusting mechanism 5 is provided between the mounting plate 6 and the conveying pipe 4. The adjusting mechanism 5 includes a fixed plate 55 installed on the conveying pipe 4 and a first connecting seat 54 installed on the mounting plate 6. A slide groove 51 is provided on the fixed plate 55, and a second connecting seat 52 is slidably installed in the slide groove 51. A push rod motor 53 is rotatably connected between the first connecting seat 54 and the second connecting seat 52 through a rotating shaft. By starting the push rod motor 53 and cooperating with the conveying pipe 4 to rotate through the connecting shaft 14, the inclination angle of the conveying pipe 4 can be adjusted, which facilitates the automatic placement of the suction end of the conveying pipe 4 in the storage box 3.

[0026] It is worth noting that, see Figure 5 A support plate 8 is installed on the inner wall of the screening box 1 below the second filter screen 11, and a spring 81 is installed on the support plate 8. A vibration motor 82 is installed at the bottom of the second filter screen 11. When screening plastic particles, the vibration motor 82 is started in conjunction with the spring 81 to drive the second filter screen 11 to vibrate, thereby accelerating the efficiency of plastic particle screening.

[0027] In addition, the components designed in this utility model are all universal standard parts or components known to technical personnel in this field. Their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods. They can be fully implemented by technical personnel in this field. Needless to say, the content protected by this utility model does not involve improvements to internal structures and methods.

[0028] The embodiments disclosed in the present invention are preferred embodiments, but are not limited to them. Ordinary technicians in this field can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. As long as they do not deviate from the spirit of the present invention, they are all within the scope of protection of the present invention.

Claims

1. A novel plastic granule feeding device, comprising a screening box (1) and a storage box (3), characterized in that: The bottom of the screening box (1) is connected to the extruder (2), the inner cavity of the screening box (1) is installed with a second filter (11), one end of the screening box (1) is provided with a notch (13), a delivery pipe (4) is provided in the notch (13), both ends of the delivery pipe (4) are installed with connecting shafts (14), and the two connecting shafts (14) are rotatably connected to the inner side of the notch (13); A driving motor (41) is installed at one end of the conveying pipe (4), a driving shaft (44) is provided in the inner cavity of the conveying pipe (4), the driving end of the driving motor (41) is connected to the driving shaft (44), a spiral blade (45) is installed on the outer side of the driving shaft (44), and the end of the conveying pipe (4) close to the screening box (1) is connected to the discharge pipe (42), a through hole (46) is opened on the surface of the conveying pipe (4), a first filter (47) is installed in the through hole (46), and a negative pressure pump (43) is installed at one end outside the through hole (46).

2. A novel plastic particle feeding device according to claim 1, characterized in that: A discharge hole (12) is provided at one end of the screening box (1), and a crushing box (7) is installed at one end of the screening box (1) close to the discharge hole (12). Two crushing rollers (72) are rotatably connected in the crushing box (7). Two servo motors (71) are installed at one end outside the crushing box (7), and the motor shafts of the two servo motors (71) are respectively connected to the two crushing rollers (72). The second filter screen (11) is arranged obliquely, and a return pipe (75) is connected to the bottom of the crushing box (7), and the return pipe (75) is placed above the storage box (3).

3. A novel plastic particle feeding device according to claim 1, characterized in that: A mounting plate (6) is installed on one side of the screening box (1), and an adjustment mechanism (5) is provided between the mounting plate (6) and the conveying pipe (4). The adjustment mechanism (5) comprises a fixing plate (55) installed on the conveying pipe (4) and a first connecting seat (54) installed on the mounting plate (6). A sliding groove (51) is provided on the fixing plate (55), and a second connecting seat (52) is slidably installed in the sliding groove (51). A push rod motor (53) is rotatably connected between the first connecting seat (54) and the second connecting seat (52) via a rotating shaft.

4. A novel plastic particle feeding device according to claim 1, characterized in that: A support plate (8) is installed on the inner wall of the screening box (1) below the second filter screen (11), a spring (81) is installed on the support plate (8), and a vibration motor (82) is installed at the bottom of the second filter screen (11).

5. A novel plastic particle feeding device as claimed in claim 2, characterized in that: A discharge pipe (73) is installed outside the discharge hole (12), and the discharge pipe (73) is arranged obliquely.

6. A novel plastic particle feeding device as claimed in claim 2, characterized in that: A shielding cover (74) is installed at the top opening of the crushing box (7).

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