A wood shavings shredder capable of screening raw materials

Abstract

The present invention discloses a wood shavings shredder capable of screening raw materials, which is an auxiliary device for steel production, and comprises a screening assembly and a shredding assembly installed on a machine base; the screening assembly comprises a screening bin, a screening motor, a reamer, a movable baffle, a sand bin, a filter knife, a filter screen and a screening plate; the shredding assembly comprises a shredding bin, a shredding motor, a reaming roller with reaming teeth, a flap, a vibrating motor, a buffer spring and a lower bin. Compared with the prior art, the present invention has the characteristics of reducing the labor intensity of personnel and saving costs.

Description

Technical Field

[0001] The invention relates to an auxiliary device for steel production, in particular to a wood shavings shredding device capable of screening raw materials. Background Art

[0002] The wood shavings shredder shreds the clumps and strips of wood shavings by shearing, tearing and squeezing for production use. The wood shavings raw materials currently purchased often contain debris such as wire ropes, scrap parts, and black sand. The wood shavings raw materials are selected by grabbers, vibrating screens and manual selection, which are effective for selecting large debris, but poor for small debris (black sand); and the large debris that is not selected is put into the shredder, causing malfunctions such as broken hinge teeth, slipping belts, and motor overload damage. Therefore, at present, most of the materials are screened by grabbers and vibrating screens, and the materials are selected manually. When the shredder cannot discharge the materials smoothly, excavators are often needed to dig the materials. The demand for machinery and personnel is large, the labor intensity is high, and the machinery is wasted. In addition, the small debris also affects the product quality in the subsequent processes. Summary of the invention

[0003] The technical task of the present invention is to provide a wood shavings shredder capable of screening raw materials in view of the above deficiencies in the prior art, which can effectively reduce the labor intensity and operating costs of personnel.

[0004] The technical solution of the present invention to solve its technical problem is: a wood shaving shredder capable of screening raw materials, characterized in that it includes a screening assembly and a shredding assembly installed on a machine base; the screening assembly includes a screening bin, a screening motor, a reamer, a movable baffle, a sand bin, a filter knife, a filter screen and a screening plate; the screening bin is installed on the upper part of the machine base; one end of the reamer central axis is rotatably connected to the side wall of the screening bin, and the other end passes through the side wall of the screening bin and is connected to the output end of the screening motor, and the screening motor drives the reamer to rotate; the movable baffle is located at the lower part of the front wall of the screening bin, and the movable baffle is elastically hinged with the middle beam of the machine base; the sand bin is located at the lower part of the machine base, and the upper opening corresponds to the position of the filter screen of the screening bin, and the front wall of the sand bin is provided with a screening plate with transverse strip holes on the upper end; the filter screen is located at the lower part of the screening bin, and the edge of the filter screen is embedded in the slideway and can be moved along the slideway Sliding; the front end of the filter screen is hinged to the upper arm of the C-shaped filter knife; the front end of the filter knife is elastically hinged to the middle beam of the machine base, and the lower arm of the C-shaped filter knife passes through the strip hole on the screen plate on the front wall of the sand bin; the ends of the upper arm and lower arm of the filter knife are connected by a connecting buckle, and the connecting buckle is fixedly connected with a spring in the direction of the screen plate; the upper arm of the filter knife has a slope corresponding to the ratchet teeth of the reamer; the shredding assembly includes a tearing bin, a shredding motor, a hinge roller with hinge teeth, a flap, a vibrating motor, a buffer spring and a lower bin; one end of the hinge roller is rotatably connected to the side wall of the tearing bin, and the other end passes through the side wall of the tearing bin and is connected to the output end of the shredding motor, and the shredding motor drives the twisting roller to rotate; the flap is installed above the tearing bin; the lower bin is located below the discharge port of the tearing bin, and the bottom is connected to the base through a buffer spring; the vibrating motor is located outside the bottom surface of the lower bin.

[0005] Also includes a safety net mounted on the front of the machine base.

[0006] The above-mentioned hinge rollers are four in number and are divided into two groups, which are respectively controlled by two sets of shredding motors.

[0007] There is an observation window on the above-mentioned flap.

[0008] The bottom surface of the lower silo is an inclined surface.

[0009] The above-mentioned reamer center shaft is connected to the output end of the screening motor, and the reamer roller is connected to the output end of the shredding motor, all of which are belt-driven.

[0010] The above-mentioned reamer, filter knife and filter screen all adopt modular design.

[0011] Compared with the prior art, the present invention has the following outstanding beneficial effects:

[0012] 1. The use of this device can reduce the manual selection process, excavator digging and vibrating screen screening processes, reduce the labor intensity of personnel, save labor costs, and excavator and vibrating screen usage fees;

[0013] 2. It can effectively prevent steel wire ropes, waste parts, black sand and other debris from entering the shredder, reduce the occurrence of shredder failures, extend the service life, and reduce the consumption of spare motors, reducers, and belts;

[0014] 3. Avoid the impact of debris pile on product quality in subsequent processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view structural schematic diagram of an embodiment of the present invention.

[0016] Figure 2 It is a schematic diagram of the side structure of an embodiment of the present invention.

[0017] Figure 3 It is a schematic diagram of a top view structure of an embodiment of the present invention. DETAILED DESCRIPTION

[0018] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0019] like Figures 1 to 3 As shown, the present invention is a shavings shredder capable of screening raw materials, comprising a screening assembly and a shredding assembly mounted on a machine base 1. For the convenience of description, the feeding direction is the front and the discharging direction is the rear.

[0020] The screening assembly comprises a screening bin 2, a screening motor, a reamer 4, a movable baffle 5, a sand bin 6, a filter knife 7, a filter screen 8, a screening plate 9 and a safety net 10, and can screen and classify large debris, fine sand and wood shavings.

[0021] The screening silo 2 is installed on the upper part of the machine base 1;

[0022] One end of the central axis of the reamer 4 is rotatably connected to the side wall of the screening bin 2, and the other end passes through the side wall of the screening bin 2 and is connected to the output end of the screening motor, and the screening motor drives the reamer 4 to rotate. The reamer 4 adopts a modular design and is connected by bolts. When it is worn, it can be replaced separately, saving spare parts costs.

[0023] The movable baffle 5 is located at the lower part of the front wall of the screening bin 2. The outer wall of the movable baffle 5 has an ear plate, and a pin shaft is connected to an inner rod. The middle beam of the base 1 has an ear plate, and a pin shaft is connected to an outer rod. The outer rod and the inner rod form a telescopic rod, and the bottom of the inner rod is connected to the bottom of the outer rod through a spring, that is, an elastic hinge is formed, and large debris is directly discharged through the opening and closing of the movable baffle 5. The safety net 10 is located in the front part of the base 1 to prevent large debris discharged by the movable baffle 5 from splashing out, and plays a role in safety protection and observing the operation of the screening material.

[0024] The sand bin 6 is located at the lower part of the base 1, and the upper opening corresponds to the position of the filter screen 8 of the screening bin 2. Fine sand passes through the screening effect of the filter screen 8 and falls into the sand bin 6. The front wall of the sand bin 6 is provided with a screening plate 9 with a transverse strip hole on the upper end.

[0025] The filter screen 8 is located at the lower part of the screening bin 2, and the edge of the filter screen 8 is embedded in the slideway 18 and can slide along the slideway 18. The front end of the filter screen 8 is hinged to the upper arm of the C-shaped filter knife 7. The front end of the filter knife 7 is elastically hinged to the middle beam of the base 1, and the lower arm of the C-shaped filter knife 7 passes through the strip hole on the screening plate 9 on the front wall of the sand bin 6. The ends of the upper arm and lower arm of the filter knife 7 are connected by a connecting buckle, and the connecting buckle is fixedly connected with a spring in the direction of the screening plate 9. The upper arm of the filter knife 7 has a slope corresponding to the ratchet of the reamer 4. The material is squeezed toward the filter knife 7 by the rotation of the reamer 4, and the filter knife 7 is pushed forward along the slideway 18. After the material is discharged or screened, the filter knife 7 is reset under the action of the spring. The reciprocating movement of the filter knife 7 drives the reciprocating movement of the filter screen 8, thereby realizing the screening of black sand in the wood shavings and assisting the wood shavings to enter the tearing bin 11. Similarly, the filter knife 7 and the filter screen 8 adopt a modular design for easy disassembly.

[0026] The shredding assembly comprises a shredding bin 11, a shredding motor, a hinge roller 13, a flap 14 with an observation window, a vibrating motor 15, a buffer spring 16 and a lower bin 17, and is used for shredding the screened wood shavings.

[0027] One end of the hinge roller 13 is rotatably connected to the side wall of the tearing bin 11, and the other end passes through the side wall of the tearing bin 11 and is connected to the output end of the shredding motor. The shredding motor drives the hinge roller 13 to rotate. The hinge roller 13 has hinge teeth. In the optimization scheme, there are four hinge rollers 13, which are divided into two groups, and each group can be two (such as Figure 3 ), can also be designed as a group of 1 roller and 2 rollers, or a group of 1 roller and 3 rollers; the remaining two rollers are a group. The tearing speed and the size of the material can be adjusted by controlling two sets of shredding motors to control one group to rotate and one group to stop; two groups to run in the same direction; two groups to run in opposite directions and speed control.

[0028] The flap 14 is installed above the tearing bin 11 to prevent large pieces of material from falling into the tearing bin 11 and causing damage to the hinge teeth. An observation window is designed on the flap 14 to observe the working status of the shredder and perform maintenance.

[0029] The lower material bin 17 is located below the discharge port of the tearing bin 11, and the bottom is connected to the base through a buffer spring 16. In the optimization scheme, the bottom surface of the lower material bin 17 is an inclined surface. The vibrating motor 15 is located outside the bottom surface of the lower material bin 17. When the material is not discharged smoothly, the lower material bin 17 is vibrated by the vibrating motor 15, and the buffer spring 16 makes the lower material bin swing to make the material discharge smooth.

[0030] Among them, the central axis of the reamer 4 is connected to the output end of the screening motor, and the reaming roller 13 is connected to the output end of the shredding motor, both of which are belt-driven, and overload is effectively prevented by slipping to protect the motor.

[0031] It should be noted that the specific embodiments of the present invention have been described in detail. For those skilled in the art, various obvious changes to the present invention without departing from the spirit and scope of the present invention are within the protection scope of the present invention.

Claims

1. A wood shavings shredder capable of screening raw materials, characterized in that: It includes a screening assembly and a shredding assembly installed on the machine base; the screening assembly includes a screening bin, a screening motor, a reamer, a movable baffle, a sand bin, a filter knife, a filter screen and a screening plate; the screening bin is installed on the upper part of the machine base; one end of the reamer central axis is rotatably connected to the side wall of the screening bin, and the other end passes through the side wall of the screening bin and is connected to the output end of the screening motor, and the screening motor drives the reamer to rotate; the movable baffle is located at the lower part of the front wall of the screening bin, and the movable baffle is elastically hinged with the middle beam of the machine base; the sand bin is located at the lower part of the machine base, and the upper opening of the sand bin corresponds to the position of the filter screen of the screening bin, and the front wall of the sand bin is provided with a screening plate with transverse strip holes on the upper end; the filter screen is located at the lower part of the screening bin, and the edge of the filter screen is embedded in the slideway and can slide along the slideway; the front end of the filter screen is hinged to the upper arm of the C-shaped filter knife; the front end of the filter knife is elastically hinged to the middle beam of the machine base The lower arm of the C-shaped filter knife is hinged, and passes through the strip hole on the screen plate on the front wall of the sand bin; the upper arm and the lower arm ends of the filter knife are connected by a connecting buckle, and the connecting buckle is fixedly connected with a spring in the direction of the screen plate; the upper arm of the filter knife has a slope corresponding to the ratchet of the reamer; the shredding assembly includes a tearing bin, a shredding motor, a hinge roller with hinge teeth, a flap, a vibrating motor, a buffer spring and a lower bin; one end of the hinge roller is rotatably connected to the side wall of the tearing bin, and the other end passes through the side wall of the tearing bin and is connected to the output end of the shredding motor, and the shredding motor drives the twisting roller to rotate; the flap is installed above the tearing bin; the lower bin is located below the discharge port of the tearing bin, and the bottom of the lower bin is connected to the base through a buffer spring; the vibrating motor is located outside the bottom surface of the lower bin; there are four hinge rollers, which are divided into two groups and are respectively controlled by two sets of shredding motors; the bottom surface of the lower bin is an inclined surface.

2. A wood shavings shredder capable of screening raw materials according to claim 1, characterized in that: Also includes a safety net mounted on the front of the machine base.

3. The wood shavings shredder capable of screening raw materials according to claim 1, characterized in that: The turning plate is provided with an observation window.

4. The wood shavings shredder capable of screening raw materials according to claim 1, characterized in that: The reamer center shaft is connected to the output end of the screening motor, and the reamer roller is connected to the output end of the shredding motor, all of which are belt-driven.

5. The wood shavings shredder capable of screening raw materials according to claim 1, characterized in that: The reamer, filter cutter and filter screen are all designed in a modular manner.

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