Plastic particle grading and screening device for production of automotive upholstery

Abstract

The utility model discloses a plastic particle grading screening device for automobile interior trim part production, which belongs to the field of automobile interior trim part production and comprises a frame, a cross beam is transversely arranged on the inner side of the frame, springs are mounted at four corners of the top of the frame, a screening box is mounted at the tops of the four springs, and the top of the screening box is open. A lifting rod is vertically installed at one end of the frame in a sliding mode, the lifting rod is arranged above the cross beam in parallel, an inner threaded barrel is arranged on the surface of the lifting rod, and an adjusting screw rod is vertically installed in the center of the upper surface of the cross beam in a rotating mode. According to the vibration screening device, the hopper is arranged on the discharging pipe so as to reduce the influence of the hopper on vibration screening, meanwhile, the vibration rod transversely penetrating through the discharging pipe can be driven to vibrate by a certain amplitude in the vibration screening process so as to drive the material plate to vibrate within a certain angle, then discharging of the hopper is dredged, blockage is prevented, and discharging uniformity is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of automotive interior part production, more specifically, relate to a kind of plastic particle grading screening device for automotive interior part production. BACKGROUND

[0002] Automotive interior part material is various, including plastic (such as polypropylene, ABS etc.), leather, fabric etc.For plastic interior part, they have good formability and certain toughness, and the plastic interior of car is injection molded, and the raw material of plastic is granular, common PP particles, ABS particles and PVC particles etc., need to be heated and melted during production, then injected into mold, and formed after cooling.

[0003] Different particle size needs different heating time during production process, in order to ensure minimum energy consumption and complete melting of particles during injection molding, plastic particles need to be graded and screened during production, and the existing screening equipment is mostly vibrating screen, which screens scattered particles through hopper, and the hopper placed on the upper part is heavy, which will affect the vibration effect of the whole screening device, and the existing hopper cannot guarantee uniform discharge and is prone to blockage. UTILITY MODEL CONTENT

[0004] 1. Technical problem to be solved

[0005] In view of the problems in the prior art, the utility model aims to provide a plastic particle grading screening device for automotive interior part production, which can dredge the inside of hopper during vibrating screening, ensure uniform discharge and prevent blockage.

[0006] 2. Technical scheme

[0007] To solve the above problems, the utility model adopts the following technical scheme.

[0008] A plastic granule grading and screening device for automotive interior parts production includes a frame with a transverse beam arranged on the inner side of the frame. Springs are installed at the four corners of the top of the frame, and screening boxes are mounted on the tops of the four springs. The tops of the screening boxes are open. A lifting rod is vertically slidably mounted on one end of the frame, parallel to the transverse beam. An internally threaded cylinder is provided on the surface of the lifting rod. An adjusting screw is vertically rotatably mounted at the center of the upper surface of the transverse beam, and the adjusting screw screws through the internally threaded cylinder. Columns are symmetrically arranged on both sides of the lifting rod. A hopper is installed between the tops of the two columns, and the hopper is positioned above the screening box. An outlet pipe is provided at the bottom of the hopper, and the outlet pipe is open downwards. A material plate is rotatably mounted on one side inside the outlet pipe, with its end inclined downwards. Track grooves B are symmetrically opened on both sides of the outlet pipe, and a vibrating rod passes transversely between the two track grooves B, contacting the inner surface of the material plate.

[0009] Furthermore, the upper surface of the screening box is symmetrically provided with U-shaped uprights on both sides, the U-shaped uprights are open inward, and the surface of the U-shaped uprights is provided with a vertical track groove A.

[0010] Furthermore, the vibrating rod is symmetrically provided with sliders at both ends, and the two sliders slide inside the two U-shaped vertical plates respectively.

[0011] Furthermore, a locking bolt is screwed onto the end of the slider away from the vibrating rod, and the locking bolt passes through the track groove A.

[0012] Furthermore, a guide plate is provided at the bottom of the screening box, a sieve plate is suspended inside the screening box, the end of the sieve plate and the guide plate away from the hopper is inclined downward, and a vibration motor is symmetrically installed at the bottom of the screening box.

[0013] Furthermore, the lower surface of the screening box away from the hopper is provided with two discharge ports, which correspond to the guide plate and the screen plate, respectively.

[0014] 3. Beneficial effects

[0015] Compared with the prior art, the advantages of this utility model are as follows: This utility model provides a plastic granule grading and screening device for the production of automotive interior parts. The hopper is installed on the frame and will not come into direct contact with the vibrating screening box, thereby reducing the impact of the hopper on the vibrating screening. At the same time, during the vibrating screening process, it can drive the vibrating rod that runs through the hopper to vibrate at a certain amplitude, thereby driving the material plate to vibrate within a certain angle, thereby clearing the discharge of the hopper, preventing blockage, and ensuring uniform discharge.

[0016] The angle of the screen plate can be controlled by adjusting the height of the vibrating rod, thereby controlling the discharge speed and improving the flexibility of the equipment during use. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0019] Figure 3 For the present utility model Figure 2 A schematic diagram of the cross-sectional structure;

[0020] Figure 4 This is a three-dimensional structural diagram of the screening box of this utility model;

[0021] Figure 5 This is a schematic diagram of the three-dimensional structure of the hopper of this utility model;

[0022] Figure 6 This utility model Figure 4 A magnified structural diagram of area A.

[0023] The following are the labels in the diagram: 1. Frame; 101. Crossbeam; 2. Spring; 3. Screening box; 31. U-shaped upright plate; 32. Track groove A; 4. Screen plate; 5. Guide bottom plate; 6. Discharge port; 7. Lifting rod; 71. Internal threaded cylinder; 8. Column; 9. Hopper; 91. Outlet pipe; 92. Track groove B; 10. Adjusting screw; 11. Vibrating motor; 12. Material plate; 13. Vibrating rod; 131. Slider; 132. Locking bolt. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] Example:

[0026] Please see Figures 1-4As shown, a plastic granule grading and screening device for automotive interior parts production includes a frame 1. A crossbeam 101 is transversely arranged on the inner side of the frame 1 to increase the overall strength of the frame 1. Springs 2 are installed at the four corners of the top of the frame 1, with internal uprights inside each spring 2 to ensure that the springs can only move up and down. Screening boxes 3 are installed on top of the four springs 2. The top of the screening boxes 3 is open, and a guide plate 5 is provided at the bottom of the screening boxes 3. A sieve plate 4 is suspended inside the screening boxes 3. The end of the sieve plate 4 and the guide plate 5 away from the hopper 9 is inclined downwards. During vibration... During the process, the particles on the surface will roll down along the inclined direction to achieve grading. The screen plate 4 can be set to multiple layers to achieve multi-stage screening. However, it should be noted that when the screen plate 4 is multi-layered, the discharge port 6 also needs to be increased accordingly. The bottom of the screening box 3 is symmetrically equipped with a vibration motor 11. Starting the vibration motor 11 can drive the entire screening box 3 to vibrate for operation. The lower surface of the end of the screening box 3 away from the hopper 9 is provided with two discharge ports 6. The two discharge ports 6 correspond to the guide bottom plate 5 and the screen plate 4 respectively, and the graded particles are centrally processed.

[0027] In multi-layer sieve plates (4), the mesh size gradually decreases from top to bottom. Larger particles are retained by the upper sieve plate, while smaller particles pass through the upper sieve and are subsequently sieved by the lower sieves. For example, in automotive interior manufacturing, it may be necessary to separate particles larger than 5mm in diameter from those smaller than 5mm. A sieve with a 5mm mesh size can be used for this separation. The particle size of automotive interior plastic granules ranges from several hundred micrometers to several millimeters. A uniform particle size distribution helps the plastic granules fill the mold better during molding, resulting in a more uniform density of the parts.

[0028] refer to Figures 1-5As shown, a lifting rod 7 is vertically slidably installed at one end of the frame 1. The lifting rod 7 is horizontally positioned with both ends sliding on the columns of the frame 1. The lifting rod 7 is parallel above the crossbeam 101. An internally threaded cylinder 71 is provided on the surface of the lifting rod 7. An adjusting screw 10 is vertically rotatably installed at the center of the upper surface of the crossbeam 101. The adjusting screw 10 is screwed through the internally threaded cylinder 71. By rotating the adjusting screw 10, the height of the lifting rod 7 can be controlled, thereby controlling the height of the hopper 9. Columns 8 are symmetrically arranged on both sides of the lifting rod 7. The distance between the two columns 8 is greater than the width of the screening box 3. A hopper 9 is installed between the tops of the two columns 8. The hopper 9 is positioned above the screening box 3. An outlet pipe 91 is provided at the bottom of the hopper 9. The outlet pipe 91 is open downward and is positioned above one end of the screening box 3. The distance between the outlet pipe 91 and the screen plate 4 can be controlled by controlling the height of the hopper 9. A material plate 12 is rotatably installed on one side inside the outlet pipe 91. The end of the material plate 12 is inclined downward. The discharge speed can be controlled by controlling the inclination angle. Track grooves B92 are symmetrically opened on both sides of the outlet pipe 91. A vibrating rod 13 is transversely inserted between the two track grooves B92. The vibrating rod 13 is in contact with the inner surface of the material plate 12. The vibrating rod 13 can be adjusted up and down relative to the hopper 9 to support the material plate 12 and thus control the inclination angle of the material plate 12.

[0029] refer to Figure 4 and Figure 6 As shown, U-shaped vertical plates 31 are symmetrically fixed on both sides of the upper surface of the screening box 3. The U-shaped vertical plates 31 are open inward, and a track groove A32 is vertically opened on the surface of the U-shaped vertical plates 31. Slider blocks 131 are symmetrically arranged at both ends of the vibrating rod 13. The two sliders 131 slide inside the two U-shaped vertical plates 31 respectively. A locking bolt 132 is screwed on the end of the slider 131 away from the vibrating rod 13. The locking bolt 132 passes through the track groove A32. The vibrating rod 13 can be locked and fixed by the external locking bolt 132, so that the vibrating rod 13 vibrates together with the screening box 3, and then drives the material plate 12 to swing back and forth within a certain angle to prevent blockage.

[0030] Working principle: First, the height of the lifting rod 7 can be controlled by rotating the adjusting screw 10, which in turn controls the height of the hopper 9. This facilitates the pouring of particles into the hopper 9 and also allows for adjustment of the height of the outlet pipe 91 and the screen plate 4. The vibration motor 11 is started to drive the entire screening box 3 to vibrate, thus screening the particles that fall onto the screen plate 4. Larger particles remain on the screen plate 4, while smaller particles are screened and fall onto the surface of the guide plate 5. Then, by tilting, the particles roll towards the tail and are discharged through the discharge port 6. During the vibration of the screening box 3, the U-shaped vertical plate 31 also vibrates up and down, which in turn drives the vibrating rod 13 to vibrate up and down. The vibrating rod 13 supports the material plate 12, causing the material plate 12 to swing back and forth within a certain angle to generate vibration and ensure smooth discharge. The slider 131 can be adjusted along the track groove A32, and the vibrating rod 13 can be adjusted along the track groove B92. The position of the vibrating rod 13 relative to the material plate 12 controls the tilt angle of the material plate 12, thereby controlling the discharge speed.

[0031] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A plastic granule grading and screening device for automotive interior parts production, comprising a frame (1), characterized in that: A crossbeam (101) is horizontally arranged on the inner side of the frame (1). Springs (2) are installed at the four corners of the top of the frame (1). A screening box (3) is installed on the top of the four springs (2). The top of the screening box (3) is open. A lifting rod (7) is vertically slidably installed at one end of the frame (1). The lifting rod (7) is parallel to the crossbeam (101) and has an internal threaded cylinder (71) on its surface. An adjusting screw (10) is vertically rotatably installed at the center of the upper surface of the crossbeam (101). The adjusting screw (10) is screwed through the internal threaded cylinder (71). The lifting rod ( 7) Columns (8) are symmetrically arranged on both sides. A hopper (9) is installed between the tops of the two columns (8). The hopper (9) is placed above the screening box (3). An outlet pipe (91) is provided at the bottom of the hopper (9). The outlet pipe (91) is open downward. A material plate (12) is rotatably installed on one side inside the outlet pipe (91). The end of the material plate (12) is inclined downward. Track grooves B (92) are symmetrically opened on both sides of the outlet pipe (91). A vibrating rod (13) is transversely passed between the two track grooves B (92). The vibrating rod (13) is in contact with the inner surface of the material plate (12).

2. The plastic particle grading and screening device for automotive interior parts production according to claim 1, characterized in that: The screening box (3) has U-shaped uprights (31) symmetrically arranged on both sides of its upper surface. The U-shaped uprights (31) are open inward, and the surface of the U-shaped uprights (31) is vertically provided with track grooves A (32).

3. The plastic particle grading and screening device for automotive interior parts production according to claim 2, characterized in that: The vibrating rod (13) has sliders (131) symmetrically arranged at both ends, and the two sliders (131) slide inside the two U-shaped uprights (31) respectively.

4. The plastic particle grading and screening device for automotive interior parts production according to claim 3, characterized in that: The slider (131) is screwed with a locking bolt (132) at one end away from the vibrating rod (13), and the locking bolt (132) passes through the track groove A (32).

5. The plastic particle grading and screening device for automotive interior parts production according to claim 1, characterized in that: The bottom of the screening box (3) is provided with a guide plate (5), and a screen plate (4) is suspended inside the screening box (3). The end of the screen plate (4) and the guide plate (5) away from the hopper (9) is inclined downward. Vibration motors (11) are symmetrically installed at the bottom of the screening box (3).

6. The plastic particle grading and screening device for automotive interior parts production according to claim 5, characterized in that: The screening box (3) has two discharge ports (6) on its lower surface away from the hopper (9). The two discharge ports (6) correspond to the guide plate (5) and the screen plate (4) respectively.

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