Screening machine with multiple layers of composite screens

Abstract

The utility model relates to the technical field of plastic particle screening, in particular to a multi-layer composite screen screening machine. According to the technical scheme, the device comprises a screening box and a control box, four spring seats are installed at the four corners of the bottom end of the screening box in a rectangular array mode and fixed to four supporting legs, a feeding hopper is installed at the left end of the top of the screening box, two rectangular notches are symmetrically formed in the front side and the rear side of the left end of the screening box, and two vibrating screens are installed in the screening box; the right ends of the two vibrating screens are movably installed on the screening box through second round pins, two inner threaded holes are symmetrically formed in the front side and the rear side of the left ends of the two vibrating screens correspondingly, and the left ends of the two vibrating screens penetrate through the rectangular notches through fixing screws to be spirally screwed into the inner threaded holes to be fixed. An upper drainage groove, a middle drainage groove and a lower drainage groove are formed in the right end of the screening box and located at the two vibrating screen outlets and the lower end outlet correspondingly. The vibrating screen is large in shaking amplitude, the inclination can be adjusted, and the screening effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of plastic particle screening, in particular to a multi-layer composite screen mesh screening machine. BACKGROUND

[0002] In the production process of plastic particles, the crushing of the plastic particle crusher has certain randomness, and the size specifications of all the crushed plastic particles cannot be guaranteed within the standard range, so a multi-layer composite screen mesh screening machine is needed to screen the plastic particles.

[0003] The existing multi-layer composite screen mesh screening machine vibrates the vibrating screen through a vibrating motor, and the vibrating amplitude of the vibrating screen driven by the vibrating motor is small, and the inclination of the vibrating screen of the existing screening machine cannot be adjusted, so the overall screening effect is poor. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a multi-layer composite screen mesh screening machine, which has a large vibration amplitude of the vibrating screen and the inclination can be adjusted, thereby improving the screening effect and solving the problems mentioned in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a multi-layer composite screen mesh screening machine, comprising a screening box and a control box, four spring seats are installed at the bottom corners of the screening box in a rectangular array, the four spring seats are fixed on four supporting legs, a reinforcing rod is installed between the lower ends of the four supporting legs, a feed hopper is installed at the left end of the top of the screening box, two rectangular notches are symmetrically formed on the front and back sides of the left end of the screening box, two vibrating screens are installed inside the screening box, the right ends of the two vibrating screens are movably installed with the screening box through round pins two, two internal thread holes are symmetrically formed on the front and back sides of the left ends of the two vibrating screens, and the left ends of the two vibrating screens are fixed by fixed screws passing through the rectangular notches and screwing into the internal thread holes, an upper drainage groove, a middle drainage groove and a lower drainage groove are installed at the right end of the screening box at the outlets of the two vibrating screens and the lower end outlet respectively.

[0006] Preferably, an installation plate is installed at the upper ends of the inner sides of the two supporting legs on the right, a screening motor is installed on the upper surface of the installation plate, a disc is installed on the output shaft of the screening motor, a round pin one is installed at the diameter end of the disc, a connecting rod is movably installed on the round pin one, a movable seat is movably installed at the other end of the connecting rod, and the movable seat is fixed at the bottom horizontal middle position of the screening box. By setting the screening motor, the two vibrating screens in the screening box are driven to vibrate to screen the materials.

[0007] Preferably, the discharge outlets of the upper drainage groove, the middle drainage groove and the lower drainage groove are distributed backward, rightward and forward respectively. By setting the discharge outlets of the three drainage grooves in different directions, the screened materials are divided.

[0008] Preferably, the front side of the screening box is hinged to install two box doors, and the two box doors are provided with handles and safety locks.

[0009] Preferably, the control box is installed at the left upper end of the left side support leg, and the control box is electrically connected with the screening motor.

[0010] Compared with the prior art, the utility model has the advantages that:

[0011] In use, the screening motor drives the vibration screen to screen, the screening motor drives the disc to rotate, the disc drives the round pin one to make a circular motion, the round pin one makes a circular motion through the connecting rod to drive the screening box to shake quickly, thereby driving the two vibration screens to shake and screen the low plastic particles, and the inclination of the two vibration screens can be adjusted by loosening the fixed screws according to the screening condition, so that the screening effect is optimal, the vibration screen has a large shaking amplitude, the inclination can be adjusted, and the screening effect is improved. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is a structural schematic view of the utility model;

[0013] Fig. 2 It is an appearance view of the utility model;

[0014] Fig. 3 It is a structural schematic view of three drainage groove distribution structures of the utility model.

[0015] In the drawing: 1, support leg; 2, spring seat; 3, screening box; 4, vibration screen; 5, reinforcing rod; 6, mounting plate; 7, screening motor; 8, disc; 9, movable seat; 10, connecting rod; 11, round pin one; 12, control box; 13, internal thread hole; 14, rectangular notch; 15, feeding hopper; 16, round pin two; 17, upper drainage groove; 18, middle drainage groove; 19, lower drainage groove; 20, fixed screw; 21, box door. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the utility model will be apparently and completely described in combination with the drawings of the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0017] Please refer to Figs. 1 to 3The utility model provides a kind of multilayer composite screen mesh screening machine technical scheme: a kind of multilayer composite screen mesh screening machine, including screening box 3 and control box 12, four spring seats 2 are installed in the bottom end four corners of screening box 3 in rectangular matrix, four spring seats 2 are fixed on four support legs 1, reinforcing rod 5 is installed between the lower end of four support legs 1, feeding hopper 15 is installed in the top left end of screening box 3, two rectangular notches 14 are symmetrically provided in the left end front and back of screening box 3, two vibration screens 4 are installed in screening box 3, two vibration screens 4 right end are movably installed with screening box 3 by round pin two 16, two vibration screens 4 left end are symmetrically provided with two internal thread holes 13 in front and back, two vibration screens 4 left end are fixed by fixed screw 20 from rectangular notch 14 and are screwed into internal thread hole 13;When adjusting the gradient of two vibration screens 4, loosen two fixed screws 20 on corresponding vibration screen 4, lift vibration screen 4 left end and then tighten two fixed screws 20.

[0018] The inner side upper end of the right two support legs 1 is commonly provided with a mounting plate 6, the upper surface of the mounting plate 6 is provided with a screening motor 7, the output shaft of the screening motor 7 is provided with a disc 8, the diameter end of the disc 8 is provided with a round pin one 11, the round pin one 11 is movably provided with a connecting rod 10, the other end of the connecting rod 10 is movably provided with a movable seat 9, the movable seat 9 is fixed at the bottom horizontal middle position of the screening box 3, the right end of the screening box 3 is provided with an upper drainage groove 17, a middle drainage groove 18 and a lower drainage groove 19 at the outlet of the two vibration screens 4 and the lower end outlet respectively, and the discharge ports of the upper drainage groove 17, the middle drainage groove 18 and the lower drainage groove 19 are distributed backward, rightward and forward respectively; when in use, the screening motor 7 is started through the control box 12, the plastic particles are poured into the screening box 3 from the feeding hopper 15, the screening motor 7 works to drive the disc 8 to rotate, the disc 8 rotates to drive the round pin one 11 to make circular motion, the round pin one 11 makes circular motion to drive the screening box 3 to shake quickly through the connecting rod 10, so as to drive the two vibration screens 4 to shake to screen the plastic particles, the large plastic particles are drained out from the upper drainage groove 17, the medium plastic particles are drained out from the middle drainage groove 18, and the small plastic particles are drained out from the lower drainage groove 19.

[0019] The front of the screening box 3 is hingedly provided with two box doors 21, the two box doors 21 are both provided with a handle and a safety lock, the control box 12 is installed at the left upper end position of the left front support leg 1, and the control box 12 is electrically connected with the screening motor 7.

[0020] All the motors of the utility model are designed by selecting small servo motors of model 14HS2408, the motor of this model is only used as a reference for selection by the person skilled in the art, and the person skilled in the art can select and match the motor with the same parameters and functions for installation, debugging and use according to the actual production needs, and the utility model will not be described in detail.

[0021] The utility model discloses use, through control box 12 start screening motor 7, pour the plastic granule from feed hopper 15 into screening box 3, screening motor 7 work drive disc 8 rotation, disc 8 rotation drive round pin one 11 do circular motion, round pin one 11 do circular motion through connecting rod 10 drive screening box 3 fast shake, thereby drive two vibrating screen 4 shake low plastic granule and screen, large plastic granule from upper drainage groove 17 drainage, medium plastic granule from middle drainage groove 18 drainage, small plastic granule from lower drainage groove 19 drainage, follow screening condition, can loose fixed screw 20 adjustment two vibrating screen 4's gradient, make screening effect reach the best.

[0022] Although the embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-deck composite screen machine comprising a screening box (3) and a control box (12), characterized in that: The four spring seats (2) are fixed on the four supporting legs (1), the reinforcing rod (5) is installed between the lower ends of the four supporting legs (1), the feeding hopper (15) is installed on the top left end of the screening box (3), two rectangular notches (14) are symmetrically formed on the left side of the screening box (3), two vibrating screens (4) are installed in the screening box (3), the right ends of the two vibrating screens (4) are movably connected with the screening box (3) through the round pin two (16), two internally threaded holes (13) are symmetrically formed on the left end of each vibrating screen (4), and the left end of each vibrating screen (4) is fixed by penetrating the rectangular notch (14) and screwing into the internally threaded hole (13) through the fixing screw (20).

2. A multi-layer composite screen machine as claimed in claim 1, wherein: The right ends of the two supporting legs (1) are symmetrically provided with the mounting plate (6), the screening motor (7) is installed on the upper surface of the mounting plate (6), the output shaft of the screening motor (7) is provided with the disc (8), the disc (8) is provided with the round pin one (11) at the diameter end, the round pin one (11) is movably provided with the connecting rod (10), the other end of the connecting rod (10) is movably provided with the movable seat (9), and the movable seat (9) is fixed on the bottom of the screening box (3).

3. A multi-layer composite screen machine as claimed in claim 1, wherein: The discharging outlets of the upper, middle and lower drainage grooves (17), (18) and (19) are distributed backward, rightward and forward, respectively.

4. A multi-layer composite screen machine as claimed in claim 1, wherein: The two box doors (21) are hingedly connected to the front of the screening box (3), and the two box doors (21) are provided with handles and safety locks.

5. A multi-layer composite screen machine as claimed in claim 1, wherein: The control box (12) is installed on the left upper end of the left supporting leg (1), and the control box (12) is electrically connected with the screening motor (7).

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