Pulverizer with screen convenient to replace

Abstract

The utility model relates to a crusher convenient to replace a screen mesh, which comprises a frame and the screen mesh, a crushing box is arranged on the frame, a crushing rotor is rotatably arranged in the crushing box, a moving seat is arranged on the frame, the screen mesh is positioned below the crushing rotor and fixedly connected with the moving seat, a driving mechanism for driving the moving seat to move longitudinally is arranged on the frame, and the screen mesh is fixedly connected with the moving seat. And a hole allowing the moving seat to penetrate through is formed in the crushing box. Due to the fact that the screen is fixedly arranged on the moving seat, and the moving seat is driven by the driving mechanism to move, the screen is moved out from the lower portion of the smashing rotor, the screen can be maintained and replaced without disassembling the smashing rotor, time and labor are saved, use is convenient, the hole is formed in the smashing box, and the smashing efficiency is improved. And the movable seat can drive the screen to directly move to the outside of the crushing box for maintenance and replacement, so that the crushing box does not need to be disassembled, the use convenience is further improved, and the maintenance efficiency is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a pulverizer technical field, specifically point to a kind of pulverizer of convenient replacement screen. BACKGROUND

[0002] Plastic pulverizer is pulverized various plastic and rubber, such as plastic profile, tube, stick, silk, film, waste rubber products, and the granules formed by pulverization can be directly used as production raw materials.

[0003] The utility model discloses a multifunctional plastic pulverizer, including the chassis, the upper surface of the chassis is installed with mainframe box, the inside center position of mainframe box is installed with inertia rotor by big axle, inertia rotor is evenly arranged and is installed on the outside of big axle, inertia rotor adopts multiple rows alloy blade group, and bottom knife assembly seat is installed below inertia rotor, the side of bottom knife assembly seat and located the below of inertia rotor is installed with screen, and the lower end of mainframe box is equipped with the opening for material falling.

[0004] This patent is installed in the lower part of inertia rotor due to screen, when different aperture screen needs to be replaced or screen is maintained later, mainframe box shell and inertia rotor need to be disassembled to take out screen for maintenance replacement, process is complex, time-consuming and labor-saving, and it is inconvenient to use. UTILITY MODEL CONTENTS

[0005] The utility model provides a kind of pulverizer of convenient replacement screen in view of the deficiency of prior art, by movable design, it is more convenient to replace screen, save time and labor.

[0006] The utility model is realized by the following technical scheme, a kind of pulverizer of convenient replacement screen, including frame and screen, the frame is equipped with pulverizing box, and the pulverizing rotor is rotatably arranged in the pulverizing box, the frame is equipped with moving seat, the screen is below the pulverizing rotor and is fixedly connected with the moving seat, and the driving mechanism that the frame is equipped with drives moving seat to move along longitudinal direction.

[0007] The screen is fixedly arranged on the moving seat in the scheme, and the screen is removed from the lower part of the pulverizing rotor by driving the moving seat to move by the driving mechanism, so that screen can be maintained and replaced without disassembling the pulverizing rotor, save time and labor, and it is convenient to use.

[0008] As an optimization, the moving seat moves through the hole to the outside of the crushing box. This optimization scheme can drive the screen to move directly outside the crushing box for maintenance and replacement by opening a hole on the re-crushing box. This does not need to disassemble the crushing box, further improves the convenience of use, and further improves the maintenance efficiency.

[0009] As an optimization, the driving mechanism is a telescopic cylinder extending longitudinally, one end of the telescopic cylinder is connected with the moving seat, and the other end of the telescopic cylinder is connected with the crushing box. This optimization scheme can drive the moving seat to reciprocate longitudinally due to the longitudinal extension of the telescopic cylinder.

[0010] As an optimization, the bottom of the moving seat is provided with a roller in contact with the top surface of the rack. This optimization scheme supports the moving seat on the top surface of the rack for movement, reduces friction, and moves more smoothly.

[0011] As an optimization, the moving seat is hollow, the screen is fixed on the upper end surface of the moving seat, and the upper end surface of the moving seat is provided with a material falling port below the screen. This optimization scheme makes the moving seat hollow, so that the granules screened by the screen fall into the inner cavity of the moving seat through the material falling port and are discharged from the crushing box.

[0012] As an optimization, the screen is of an arc structure. This optimization scheme can make the arc-shaped screen more conformal to the circumference of the crushing rotor, thereby improving the screening effect.

[0013] As an optimization, the moving seat includes two support plates opposite in the transverse direction, an arc-shaped groove is formed at the intersection of the front side and the top of each support plate, the curvature of the arc-shaped groove is adapted to the curvature of the screen, a front side plate is fixedly connected between the front sides of the two support plates, a rear side plate is fixedly connected between the rear sides of the two support plates, a top plate is fixedly connected between the tops of the two support plates, an arc-shaped plate is fixedly connected between the arc-shaped grooves of the two support plates, one end of the arc-shaped plate is fixedly connected with the top plate, and the other end of the arc-shaped plate forms the material falling port with the front side plate, and the screen is fixedly connected to the arc-shaped plate.

[0014] This optimization scheme of the moving seat forms a hollow support structure by the cooperation of the two support plates, the front side plate, the rear side plate, the top plate and the arc-shaped plate. Since the bottom of the moving seat is not closed, the screened granules can fall to the bottom of the crushing box and be discharged from the crushing box through the opening in the bottom of the crushing box for collection. Since the curvature of the arc-shaped groove on the support plate is the same as that of the screen, when the screen is placed between the two arc-shaped grooves, the screen also covers the top of the material falling port, thereby achieving the screening and discharge of the granules. The arc-shaped plate supports the screen, which is convenient for fixing the screen.

[0015] As optimization, the mobile seat is fixed with a hollow tail seat away from one side of the crushing rotor, and the inner cavity of the tail seat and the mobile seat inner cavity are communicated. The optimization scheme is convenient for checking and cleaning the inside of the mobile seat through the tail seat due to the communication between the tail seat and the mobile seat inner cavity, and reduces the gravity center of the mobile seat through the tail seat, thereby improving the stability during movement.

[0016] The beneficial effects of the utility model are that: since the screen is fixed on the mobile seat, the screen is moved out from below the crushing rotor by driving the mobile seat through the driving mechanism, so that the screen can be maintained and replaced without disassembling the crushing rotor, which saves time and effort and is convenient to use.

[0017] The mobile seat can directly move the screen to the outside of the crushing box for maintenance and replacement by opening a hole on the re-crushing box, so that the shell of the crushing box does not need to be disassembled again, further improving the use convenience and further improving the maintenance efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 The utility model discloses a crushing state schematic view;

[0019] Fig. 2 The utility model discloses a screen replacement state schematic view;

[0020] Fig. 3 The utility model discloses a mobile seat inside crushing box structure schematic view;

[0021] Fig. 4 The utility model discloses a mobile seat outside crushing box structure schematic view;

[0022] Fig. 5 The utility model discloses a mobile seat and tail seat sectional view;

[0023] The drawings show:

[0024] 1, frame, 2, crushing box, 21, hole, 3, large shaft, 4, crushing rotor, 5, bottom cutter assembly seat, 6, tail seat, 61, vertical plate, 62, cover plate, 63, cross link, 7, mobile seat, 71, support plate, 72, front side plate, 73, rear side plate, 74, top plate, 75, arc plate, 76, arc slot, 77, blanking hole, 8, screen, 9, telescopic cylinder, 10, conveyor, 11, driving motor. DETAILED DESCRIPTION

[0025] In order to clearly illustrate the technical features of the scheme, the following through specific embodiment, this scheme is described.

[0026] For example, Figs. 1-5As shown, a crusher with a conveniently replaceable screen includes a rack 1 and a screen 8, the rack 1 is provided with a crushing box 2, a crushing rotor 4 is rotatably arranged in the crushing box 2, the rack 1 is provided with a moving seat 7, the screen 8 is located below the crushing rotor 4 and is fixedly connected with the moving seat 7, and the rack 1 is provided with a driving mechanism for driving the moving seat 7 to move longitudinally.

[0027] Specifically, the rack 1 extends in the front-rear direction, and the crushing box 2 is fixedly arranged on the top surface of the rack 1. The crushing rotor 4 of the present embodiment is provided with a conveyor 10 on the side away from the moving seat 7, the output end of the conveyor 10 is communicated with the inside of the crushing box 2, and the material is conveyed into the crushing box 2 through the conveyor 10, so that the crushing rotor 4 can crush the material. The structure of the crushing rotor 4 of the present embodiment is the same as that of the inertia rotor in the background art patent CN113752428A, the crushing rotor 4 is installed at the center position inside the crushing box 2 through a large shaft 3, the crushing box 2 is provided with a driving motor 11 for driving the large shaft 3 to rotate, the inside of the crushing box 2 and below the crushing rotor 4 is installed with a bottom cutter assembly seat 5, alloy blades are inlaid in the inside of the bottom cutter assembly seat 5, the rotation of the large shaft 3 is driven by the driving motor 11, and then the crushing rotor 4 rotates to cooperate with the bottom cutter assembly seat 5 to cut and crush the material into granules.

[0028] Specifically, the moving seat 7 is also located on the top surface of the rack 1, and the length direction of the rack 1 is the longitudinal direction, so the driving mechanism drives the moving seat 7 to move in the front-rear direction on the top surface of the rack 1, and the crushing box 2 is provided with a hole 21 for the moving seat 7 to pass through, and the moving seat 7 can pass through the hole 21 to enter and exit the crushing box 2 when moving forward and backward.

[0029] Preferably, the bottom of the moving seat 7 is provided with a roller 78 in contact with the top surface of the rack 1, and the moving seat 7 is supported on the top surface of the rack 1 to move through the roller 78, thereby reducing friction and making movement smoother.

[0030] Under the driving of the driving mechanism, when crushing, the moving seat 7 moves forward into the inside of the crushing box 2, so that the screen 8 is located below the crushing rotor 4 and on one side of the bottom cutter assembly seat 5, and the size-qualified granules are screened out through the screen 8. When it is necessary to replace the screen 8, the moving seat 7 moves backward to pass through the hole 21 and moves to the outside of the crushing box 2, so that the screen 8 is moved out from below the crushing rotor 4, thereby the screen can be replaced without the need to disassemble the shell of the crushing box 2 and the crushing rotor 4, which saves time and effort and is more convenient to use.

[0031] Specifically, the driving mechanism is a telescopic cylinder 9 extending in the longitudinal direction, one end of the telescopic cylinder 9 is connected with the moving seat 7, and the other end of the telescopic cylinder 9 is connected with the crushing box 2. Since the telescopic cylinder 9 also extends in the longitudinal direction, the telescopic cylinder 9 can drive the moving seat 7 to reciprocate in the front-rear direction through extension and contraction.

[0032] Specifically, the moving seat 7 is hollowly arranged, the screen 8 is fixedly arranged on the upper end face of the moving seat 7, and the upper end face of the moving seat 7 is provided with a discharging opening 77 below the screen 8. The bottom of the moving seat 7 and the bottom of the crushing box 2 are both provided with openings, and the top surface of the rack 1 is provided with a discharging opening in communication with the inner cavity of the crushing box 2. The moving seat 7 is hollowly arranged, so that the granules screened by the screen 8 can fall into the inner cavity of the moving seat 7 through the discharging opening 77. Since the bottom of the moving seat 7 and the bottom of the crushing box 2 are both provided with openings, the granules directly fall on the top surface of the rack 1 after entering the moving seat 7 and are discharged through the discharging opening.

[0033] The screen 8 is in an arc-shaped structure, and the arc-shaped screen 8 can be more closely fitted with the circumference of the crushing rotor 4, thereby improving the screening effect.

[0034] Specifically, the moving seat 7 includes two laterally opposite support plates 71, and the intersection between the front side and the top of each support plate 71 is provided with an arc-shaped groove 76. The front side upper end and the top front end of each support plate 71 are transitionally connected through the arc-shaped groove 76, and the curvature of the arc-shaped groove 76 is matched with the curvature of the screen 8. A front side plate 72 is fixedly connected between the front sides of the two support plates 71, a rear side plate 73 is fixedly connected between the rear sides of the two support plates 71, a top plate 74 is fixedly connected between the tops of the two support plates 71, and an arc-shaped plate 75 is fixedly connected between the arc-shaped grooves 76 of the two support plates 71. One end of the arc-shaped plate 75 is fixedly connected with the top plate 74, and the other end of the arc-shaped plate 75 forms the discharging opening 77 with the front side plate 72. The screen 8 is fixedly connected to the arc-shaped plate 75. In this embodiment, the two support plates 71 are opposite to each other, and the bottoms of the two support plates 71 are both provided with a plurality of rollers 78.

[0035] The moving seat 7 is formed into a hollow support structure by the two support plates 71 in cooperation with the front side plate 72, the rear side plate 73, the top plate 74 and the arc-shaped plate 75. Since the bottom of the moving seat 7 is not closed, the bottom is provided with an opening, which facilitates the discharge of the screened granules. Since the curvature of the arc-shaped groove 76 on the support plate 71 is the same as the curvature of the screen 8, when the screen 8 is placed between the two arc-shaped grooves 76, the screen also covers the upper part of the discharging opening 77, thereby achieving the screening of the granules. The screen 8 is supported by the arc-shaped plate 75, which facilitates the fixation of the screen.

[0036] Preferably, the upper end of the rear side plate 73 is higher than the upper end of the hole 21, so as to limit the distance of the moving seat 7 entering the crushing box 2 through the rear side plate 73, thereby preventing the moving seat 7 from moving forward excessively. When the upper end of the rear side plate 73 contacts with the upper end of the hole 21, the moving seat 7 cannot continue to move forward, and at this time, the screen 8 is just located below the crushing rotor 4.

[0037] Preferably, the moving seat 7 is fixed with a hollow tail seat 6 away from one side of the crushing rotor 4, and the inner cavity of the tail seat 6 is communicated with the inner cavity of the moving seat 7. The tail seat 6 of the embodiment comprises two opposite vertical plates 61 which are fixed with the rear side plate 73 of the moving seat, and a cover plate 62 is fixed between the top of the two vertical plates 61, and the lower end of the rear side plate 73 is provided with an opening so as to communicate the inner cavity of the moving seat 7 with the inner cavity of the tail seat 6. Since the inner cavities of the tail seat 6 and the moving seat 7 are communicated, the inside of the moving seat can be easily inspected and cleaned through the inner cavity of the tail seat when the moving seat moves out, and the center of gravity of the moving seat is lowered through the tail seat, so that the stability during moving is improved.

[0038] The two vertical plates 61 of the tail seat 6 of the embodiment are fixed with a cross connecting rod 63, and one end of the telescopic cylinder 9 is sequentially inserted through the lower end opening of the front side plate 72 and the rear side plate 73 of the moving seat 7 and then connected with the cross connecting rod 63.

[0039] Working principle: when the material is crushed, the material is conveyed into the crushing box 2 through the conveyor 10, the driving motor 11 drives the rotation of the main shaft 3, and then the crushing rotor 4 rotates to cooperate with the bottom cutter assembly seat 5 to crush the material into granules. The qualified granules are screened out through the screen 8, and the screened granules fall through the dropping port 77 to the rack 1 and are discharged through the discharge hole of the rack 1.

[0040] When the screen 8 is replaced, the telescopic cylinder 9 is elongated to drive the moving seat 7 to move backward, the moving seat 7 moves through the hole 21 to the outside of the crushing box 2, so that the screen 8 is moved out from below the crushing rotor 4, so that the screen 8 can be replaced without disassembling the crushing box 2 shell and the crushing rotor 4, which saves time and effort and is more convenient to use. After replacement, the telescopic cylinder 9 is retracted to drive the moving seat 7 to move forward to reset and continue to use.

[0041] The above description is not limited to the above examples, and the technical features not described in the utility model can be realized by or using the prior art, which will not be repeated here; the above embodiments and drawings are only used to illustrate the technical scheme of the utility model and are not limited to the utility model, and the ordinary skilled in the art should understand that the changes, modifications, additions or replacements made by the ordinary skilled in the art within the essential scope of the utility model do not deviate from the purpose of the utility model, and should also belong to the protection scope of the claims of the utility model.

Claims

1. A pulverizer with a convenient screen replacement, comprising a frame (1) and a screen (8), wherein a pulverizing box (2) is provided on the frame (1), and a pulverizing rotor (4) is rotatably provided inside the pulverizing box (2), characterized in that: The frame (1) is provided with a movable seat (7), the screen (8) is located below the crushing rotor (4) and is fixedly connected to the movable seat (7), the frame (1) is provided with a driving mechanism to drive the movable seat (7) to move longitudinally; the movable seat (7) is hollow, the screen (8) is fixed on the upper end face of the movable seat (7), the upper end face of the movable seat (7) is provided with a material discharge port (77) located below the screen (8), and the bottom of the movable seat (7) is equipped with a roller (78) that contacts the top surface of the frame (1).

2. The pulverizer with easily replaceable screen as described in claim 1, characterized in that: The crushing box (2) has an opening (21) for the moving seat (7) to pass through.

3. The pulverizer with easily replaceable screen as described in claim 1, characterized in that: The driving mechanism is a telescopic cylinder (9) extending longitudinally. One end of the telescopic cylinder is connected to the movable seat (7), and the other end of the telescopic cylinder is connected to the crushing box (2).

4. The pulverizer with easily replaceable screen as described in claim 1, characterized in that: The screen (8) has an arc-shaped structure.

5. The pulverizer with easily replaceable screen as described in claim 4, characterized in that: The movable seat (7) includes two horizontally opposite support plates (71). An arc-shaped groove (76) is provided at the junction of the front side and the top of the support plate (71). The curvature of the arc-shaped groove (76) is adapted to the curvature of the screen (8). A front side plate (72) is fixed between the front sides of the two support plates (71). A rear side plate (73) is fixed between the rear sides of the two support plates (71). A top plate (74) is fixed between the tops of the two support plates (71). An arc-shaped plate (75) is fixed between the arc-shaped grooves (76) of the two support plates (71). One end of the arc-shaped plate (75) is fixed to the top plate (74), and the other end of the arc-shaped plate (75) forms the material discharge port (77) between the front side plate (72). The screen (8) is fixed on the arc-shaped plate (75).

6. The pulverizer with easily replaceable screen as described in claim 1, characterized in that: A hollow tailstock (6) is fixed to the side of the movable seat (7) away from the crushing rotor (4), and the inner cavity of the tailstock (6) is connected to the inner cavity of the movable seat (7).

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