Waste screening device

Abstract

The utility model discloses a waste screening device, which relates to the field of metal recovery and comprises a support and a screen drum, a turnover mechanism is rotatably mounted at the top of the support, the screen drum is rotatably mounted at the top of the turnover mechanism, a plurality of extrusion blocks are fixedly connected to the outer surface of the screen drum and are spirally distributed, one side of each extrusion block is an arc-shaped inclined surface, and the other side of each extrusion block is an arc-shaped inclined surface. A knocking mechanism is mounted on the turnover mechanism, the knocking mechanism comprises supporting rods which are symmetrically arranged left and right, the supporting rods are fixedly connected to the two sides of the turnover mechanism, and a mounting plate is fixedly connected to the upper ends of the supporting rods. The device has the beneficial effects that when the screen drum rotates, the multiple extrusion blocks are driven to rotate, the multiple extrusion blocks are arranged in a spiral shape, therefore, the extrusion blocks can sequentially extrude the multiple knocking rods, after the extrusion blocks are separated from the corresponding knocking rods, the knocking rods can rapidly move downwards under the action of springs so as to knock the screen drum, and therefore the screen drum is vibrated; in this way, the situation that screen holes of the screen drum are clamped can be reduced, manual cleaning is reduced, and use is more convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of metal recovery, in particular to a waste screening device. BACKGROUND

[0002] In the process of processing and producing metal products, a large amount of metal waste will be produced, and many metal processing enterprises additionally increase the process of metal recovery after processing to recycle and reuse the metal waste. In the process of recycling metal waste, non-metallic impurities need to be screened out to reduce the content of impurities in the recycled metal.

[0003] For example, the patent document with the announcement number CN214865228U discloses a solid waste screening device. Solid waste is put into a first screening drum, an eccentric drive motor drives an eccentric wheel to rotate, the eccentric wheel drives a rotating auxiliary plate two to reciprocatingly slide along a first horizontal guide rail, so that the rotating auxiliary plate one and the rotating auxiliary plate two drive the first screening drum to reciprocate, realizing the effect of vibration screening. Most metal processing enterprises currently also use the form of screening drum to screen waste, however, in the screening process, part of the material will be stuck in the screen hole of the screening drum, which will cause the screening drum to be blocked after a long time, affecting the screening effect, and it is time-consuming and laborious to clean the screening drum manually, and the use is not convenient. UTILITY MODEL CONTENT

[0004] The purpose of the utility model is to provide a waste screening device to solve the above problems.

[0005] The utility model achieves the above-mentioned purposes through the following technical solutions:

[0006] A waste screening device, comprising a support and a screening drum, a turnover mechanism is rotatably installed on the top of the support, the screening drum is rotatably installed on the top of the turnover mechanism, a plurality of extrusion blocks are fixedly connected to the outer surface of the screening drum, the extrusion blocks are distributed in a spiral shape, one side of the extrusion block is an arc inclined surface, a knocking mechanism is installed on the turnover mechanism, the knocking mechanism comprises support rods which are symmetrically arranged left and right, the support rods are fixedly connected to the two sides of the turnover mechanism, an installation plate is fixedly connected to the upper end of the support rod, the installation plate is parallel to the axis of the screening drum, a plurality of sleeves are fixedly connected to the bottom of the installation plate and are uniformly distributed in the front-rear direction, a knocking rod is slidably connected to the inside of the bottom end of the sleeve, a spring is fixedly connected between the sleeve and the knocking rod, each knocking rod corresponds to an extrusion block, a drive mechanism is arranged on one side of the turnover mechanism, and an extension mechanism for rotating the turnover mechanism is arranged at the rear end of the support.

[0007] Preferably, the turnover mechanism comprises two left and right symmetrical turnover seats, the support rod is fixedly connected to the turnover seats, the front end of the turnover seat is hinged to the support, the rear end of the turnover seat is placed on the top of the support, the top of the turnover seat is fixedly connected with two supports, the shaft is rotatably connected to the support, the gear is fixedly connected to the front and rear ends of the shaft, the support ring is fixedly connected to the surface of the screen drum, the gear ring is fixedly connected to the inside of the support ring, and the gear is engaged with the gear ring.

[0008] Preferably, the driving mechanism comprises a motor, the motor is fixedly connected to one side of the turnover seat, the output end of the motor is fixedly connected with a driving sprocket, the driving sprocket is connected with a driven sprocket through a chain, and the driven sprocket is fixedly connected to the shaft.

[0009] Preferably, the telescopic mechanism comprises a hydraulic cylinder, the output end of the hydraulic cylinder is hinged with a top plate, the top plate is fixedly connected between the two turnover seats, the bottom of the hydraulic cylinder is hinged with a bottom plate, and the bottom plate is fixedly connected to the support.

[0010] Preferably, the front side of the support is fixedly connected with a blocking ring, the center of the blocking ring is provided with a circular hole, the inner diameter of the circular hole is smaller than the inner diameter of the screen drum, the blocking plate is slidably connected to the inside of the blocking ring in the radial direction, the front side of the blocking plate is fixedly connected with a locking rod, the locking rod is threadedly connected with a locking screw rod, the locking screw rod penetrates through the locking rod in front and back, and two locking holes are formed in the blocking ring and are distributed upward and downward.

[0011] Preferably, a plurality of raking plates are fixedly connected to the inner wall of the screen drum.

[0012] The beneficial effects are that: when the screen drum rotates, the plurality of extrusion blocks are driven to rotate, the plurality of extrusion blocks are arranged in a spiral shape, so that the extrusion blocks can extrude the plurality of knocking rods in turn, when the extrusion block is separated from the corresponding knocking rod, the knocking rod can move downward quickly under the action of the spring to knock the screen drum, so that the screen drum vibrates, which can reduce the situation that the screen holes of the screen drum are stuck, reduce manual cleaning, and use more conveniently; the screen drum rear end is lifted by the telescopic mechanism, and the knocking mechanism can quickly pour out the screened metal waste from the screen drum.

[0013] The additional technical features and advantages of the utility model will be more obvious in the following description, or can be understood through the specific practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0014] The drawings are used to provide a further understanding of the utility model, and constitute a part of the specification, and are used together with the following specific embodiments to explain the utility model, but do not constitute a limitation to the utility model. In the drawings:

[0015] Figure 1 It is the first perspective view of a waste screening device described in the utility model;

[0016] Figure 2is a second perspective view of the waste screening device of the utility model;

[0017] Figure 3 is a perspective view of the turnover mechanism and driving mechanism of the waste screening device of the utility model;

[0018] Figure 4 is a perspective view of the sieve cylinder of the waste screening device of the utility model;

[0019] Figure 5 is a right side sectional view of the knocking mechanism of the waste screening device of the utility model;

[0020] Figure 6 is a perspective view of the blocking ring of the waste screening device of the utility model.

[0021] The reference signs are explained as follows: 1, support; 2, turnover mechanism; 201, turnover seat; 202, support seat; 203, rotating shaft; 204, gear; 3, sieve cylinder; 301, extrusion block; 302, support ring; 303, gear ring; 304, material shifting plate; 4, knocking mechanism; 401, support rod; 402, mounting plate; 403, sleeve; 404, knocking rod; 405, spring; 5, driving mechanism; 501, motor; 502, driving sprocket; 503, driven sprocket; 6, telescopic mechanism; 601, hydraulic cylinder; 602, top plate; 603, bottom plate; 7, blocking ring; 701, blocking plate; 702, locking rod; 703, locking screw; 704, locking hole. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0023] In the description of the utility model, it is understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0024] The utility model will be further described below with reference to the drawings:

[0025] As Figures 1-6As shown, a waste screening device includes a support 1 and a screen cylinder 3, the front end of the screen cylinder 3 is notched, the rear end of the screen cylinder 3 is closed, the top of the support 1 is rotatably provided with a turnover mechanism 2, the screen cylinder 3 is rotatably provided on the top of the turnover mechanism 2, a plurality of extrusion blocks 301 are welded on the outer surface of the screen cylinder 3, the extrusion blocks 301 are distributed in a spiral shape, one side of the extrusion block 301 is an arc slope, a knocking mechanism 4 is installed on the turnover mechanism 2, the knocking mechanism 4 includes left and right symmetrically arranged support rods 401, the support rods 401 are fixedly connected on both sides of the turnover mechanism 2, the upper end of the support rod 401 is welded with a mounting plate 402, the mounting plate 402 is parallel to the axis of the screen cylinder 3, a plurality of sleeves 403 are uniformly distributed in the front and rear direction and are connected to the bottom of the mounting plate 402 through screws, a knocking rod 404 is slidably connected inside the bottom end of the sleeve 403, a spring 405 is fixedly connected between the sleeve 403 and the knocking rod 404, each knocking rod 404 corresponds to an extrusion block 301, the screen cylinder 3 drives the extrusion block 301 to move in a circle when rotating, the extrusion block 301 will extrude the knocking rod 404 upward when moving to the top of the screen cylinder 3, the spring 405 is compressed, and when the extrusion block 301 is separated from the knocking rod 404, the spring 405 quickly rebounds to knock the screen cylinder 3 with the knocking rod 404, so that the screen cylinder 3 vibrates, the waste stuck in the screen hole of the screen cylinder 3 is shaken off, the clogging of the screen cylinder 3 is reduced, the extrusion blocks 301 are distributed in a spiral shape, so that a plurality of extrusion blocks 301 extrude a plurality of knocking rods 404 in turn, so that the screen cylinder 3 always vibrates, a plurality of stirring plates 304 are fixedly connected to the inner wall of the screen cylinder 3, the efficiency of screening is improved, a drive mechanism 5 is arranged on one side of the turnover mechanism 2, and a telescopic mechanism 6 is arranged at the rear end of the support 1 to drive the turnover mechanism 2 to rotate.

[0026] The turnover mechanism 2 includes two left and right symmetrically arranged turnover seats 201, the support rods 401 are fixedly connected on the turnover seats 201, the front end of the turnover seat 201 is hinged to the support 1, the rear end of the turnover seat 201 is placed on the top of the support 1, the telescopic mechanism 6 drives the rear end of the turnover seat 201 to lift upward, so that the screen cylinder 3 is tilted forward and turned over, facilitating discharging, two supports 202 are connected to the top of the turnover seat 201 through screws, a rotating shaft 203 is connected to the support 202 through a bearing, gear wheels 204 are fixedly connected to the front and rear ends of the rotating shaft 203, a support ring 302 is fixedly connected to the surface of the screen cylinder 3, a gear ring 303 is fixedly connected in the support ring 302, the gear wheel 204 is engaged with the gear ring 303, the gear wheels 204 on both sides support the screen cylinder 3, and the gear wheel 204 drives the gear ring 303 to rotate when rotating, so that the screen cylinder 3 rotates.

[0027] The drive mechanism 5 includes a motor 501, the motor 501 is fixedly connected to one side of the turnover seat 201, the output end of the motor 501 is fixedly connected with a driving sprocket 502, the driving sprocket 502 is connected with a driven sprocket 503 through a chain, and the driven sprocket 503 is fixedly connected to the rotating shaft 203.

[0028] The telescopic mechanism 6 comprises a hydraulic cylinder 601, the output end of the hydraulic cylinder 601 is hinged with a top plate 602, the top plate 602 is fixedly connected between the two turnover seats 201, the bottom of the hydraulic cylinder 601 is hinged with a bottom plate 603, and the bottom plate 603 is fixedly connected on the support 1.

[0029] The support 1 is fixedly connected with a baffle ring 7 on the front side, the baffle ring 7 is provided with a circular hole in the center, metal waste is put into the screen cylinder 3 from the circular hole in the center of the baffle ring 7, the inner diameter of the circular hole is smaller than the inner diameter of the screen cylinder 3, so that the metal waste is prevented from falling out of the front end of the screen cylinder 3 when the screen cylinder 3 rotates for screening, the baffle ring 7 is slidably connected with a baffle plate 701 in the radial direction, specifically, the baffle ring 7 is arranged in a notch formed on the baffle ring 7, the baffle plate 701 is fixedly connected with a locking rod 702 on the front side, the locking rod 702 is threadedly connected with a locking screw 703, the locking screw 703 penetrates through the locking rod 702 in the front and back directions, and two locking holes 704 are formed on the baffle ring 7 and are arranged in the upper and lower directions, and the position of the baffle plate 701 is fixed through cooperation of the locking screw 703 and the locking holes 704.

[0030] Working principle: when in use, the metal waste is put into the screen cylinder 3 from the circular hole in the center of the baffle ring 7, the driving sprocket 502 and the driven sprocket 503 are driven to rotate by the motor 501, the driven sprocket 503 drives the rotating shaft 203 and the gear 204 to rotate, the gear 204 drives the gear ring 303 to rotate, so that the screen cylinder 3 rotates, impurities are screened out of the screen cylinder 3, and the recyclable metal waste remains in the screen cylinder 3; when the screen cylinder 3 rotates, the extruding block 301 moves in the circumferential direction, the extruding block 301 is extruded upward to knock the knocking rod 404 when the extruding block 301 moves to the top of the screen cylinder 3, the spring 405 is compressed, and when the extruding block 301 is separated from the knocking rod 404, the spring 405 rapidly rebounds to knock the screen cylinder 3 through the knocking rod 404, so that the screen cylinder 3 vibrates, the waste material stuck in the screen hole of the screen cylinder 3 is shaken off, the clogging of the screen cylinder 3 is reduced, after the screening is completed, the locking screw 703 is rotated to be separated from one of the locking holes 704, then the baffle plate 701 is moved to the center of the baffle ring 7, the notch on the baffle ring 7 is opened, the locking screw 703 is rotated again to cooperate with the other locking hole 704, the position of the baffle plate 701 is fixed, then the hydraulic cylinder 601 is elongated to lift the rear end of the turnover seat 201, the screen cylinder 3 is rotated and inclined to the front side, then the screen cylinder 3 is continuously rotated, and the metal waste in the screen cylinder 3 is discharged from the notch of the baffle ring 7.

[0031] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by the person skilled in the art that the utility model is not limited to the above-mentioned embodiments, the above-mentioned embodiments and the description in the specification only illustrate the principle of the utility model, under the premise of not departing from the spirit and scope of the utility model, the utility model can have various changes and improvements, and these changes and improvements all fall within the scope of the utility model.

Claims

1. A waste screening device, comprising a support (1) and a screen cylinder (3), characterized in that: A flipping mechanism (2) is rotatably mounted on the top of the support (1). The screen cylinder (3) is rotatably mounted on the top of the flipping mechanism (2). Multiple extrusion blocks (301) are fixedly connected to the outer surface of the screen cylinder (3). The extrusion blocks (301) are spirally distributed, and one side of the extrusion block (301) is an arc-shaped inclined surface. A striking mechanism (4) is mounted on the flipping mechanism (2). The striking mechanism (4) includes support rods (401) arranged symmetrically on the left and right sides. The support rods (401) are fixedly connected to both sides of the flipping mechanism (2). An mounting plate (402) is fixedly connected to the upper end of the support rods (401). The mounting plate (402) is parallel to the axis of the screen cylinder (3). The bottom of the mounting plate (402) is fixedly connected to a plurality of sleeves (403) evenly distributed in the front-back direction. The bottom end of the sleeve (403) is slidably connected to a striking rod (404). A spring (405) is fixedly connected between the sleeve (403) and the striking rod (404). Each striking rod (404) corresponds to one of the extrusion blocks (301). A driving mechanism (5) is provided on one side of the flipping mechanism (2). A telescopic mechanism (6) for rotating the flipping mechanism (2) is provided at the rear end of the bracket (1).

2. The waste screening device according to claim 1, characterized in that: The flipping mechanism (2) includes two flipping seats (201) arranged symmetrically on the left and right. The support rod (401) is fixedly connected to the flipping seat (201). The front end of the flipping seat (201) is hinged to the bracket (1). The rear end of the flipping seat (201) rests on the top of the bracket (1). Two supports (202) are fixedly connected to the top of the flipping seat (201). A rotating shaft (203) is rotatably connected to the support (202). Gears (204) are fixedly connected to the front and rear ends of the rotating shaft (203). A support ring (302) is fixedly connected to the surface of the screen cylinder (3). A gear ring (303) is fixedly connected inside the support ring (302). The gear (204) meshes with the gear ring (303).

3. The waste screening device according to claim 2, characterized in that: The drive mechanism (5) includes a motor (501), which is fixedly connected to one side of the flipping seat (201). The output end of the motor (501) is fixedly connected to a drive sprocket (502), which is connected to a driven sprocket (503) via a chain. The driven sprocket (503) is fixedly connected to the rotating shaft (203).

4. The waste screening device according to claim 2, characterized in that: The telescopic mechanism (6) includes a hydraulic cylinder (601), the output end of which is hinged to a top plate (602), the top plate (602) is fixedly connected between the two flip seats (201), and the bottom of the hydraulic cylinder (601) is hinged to a bottom plate (603), the bottom plate (603) is fixedly connected to the bracket (1).

5. A waste screening device according to claim 1, characterized in that: A retaining ring (7) is fixedly connected to the front side of the bracket (1). The retaining ring (7) has a circular hole in the center. The inner diameter of the circular hole is smaller than the inner diameter of the screen cylinder (3). A baffle (701) is slidably connected to the inside of the retaining ring (7) along the radial direction. A locking rod (702) is fixedly connected to the front side of the baffle (701). A locking screw (703) is threaded onto the locking rod (702). The locking screw (703) passes through the locking rod (702) from front to back. Two locking holes (704) are provided on the retaining ring (7) and are distributed vertically.

6. The waste screening device according to claim 1, characterized in that: Multiple material feeding plates (304) are fixedly connected to the inner wall of the screen cylinder (3).

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