A multimedia media destruction machine

Abstract

The present invention discloses a multimedia media destruction machine, including a whole machine housing, wherein the whole machine housing is provided with a two-stage crushing mechanism, which is arranged in a crushing bin of the whole machine housing, including crushing tools and a rotor drum grinding assembly arranged up and down, wherein the rotor drum grinding assembly can be pulled out and arranged below the crushing tool, and a crushing bin door corresponding to the crushing bin is arranged on the front of the whole machine housing; a dust removal and purification filter cartridge is arranged in the dust removal and purification bin of the whole machine housing, including a negative pressure dust removal fan and a dust removal filter barrel, and a dust removal and purification bin door corresponding to the dust removal and purification filter cartridge is arranged on the left side of the whole machine housing. The present invention adopts a closed structure as a whole, and the two-stage crushing mechanism realizes complete destruction of the media and improves crushing efficiency. The pull-out rotor drum grinding assembly is easy to take and put, and is convenient for inspection and maintenance. The built-in dust removal and purification filter cartridge can filter the air, remove harmful substances, and improve environmental safety.

Description

Technical Field

[0001] The present invention relates to the technical field of medium destruction, and in particular to a multimedia medium destruction machine. Background Art

[0002] With the rapid development of electronic technology, information storage media have also become more diverse, such as traditional computer hard disks, mobile hard disks, USB flash drives, solid-state storage disks and other large-capacity storage media, and traditional soft storage devices such as optical disks, magnetic disks and electronic films. The above information storage media, as storage media for computers or electronic devices, contain a large number of state secrets and corporate secrets, which must be destroyed more safely after being discarded to prevent the leakage of secrets. The traditional way to destroy information storage media is to crush them separately according to the material composition of the electronic storage media. For example, for storage media with hard metal shells such as computer hard disks, mobile hard disks, and solid-state storage disks, corresponding destruction is carried out.

[0003] Chinese utility model patent CN206334738U discloses a waste hard disk crusher, including a frame housing, a reduction motor inside the housing, a crushing blade, and a crushed material collection box. However, in this technical solution, the reduction motor and the blade are fixed, and the blade needs to be repaired and replaced at intervals because the blade wears more seriously over time. However, in this technical solution, the blade is not easy to disassemble and repair, and the crushing is not thorough, and sometimes important storage chips cannot be crushed.

[0004] In view of this, there is an urgent need to improve the structure of the existing media destruction machine in order to achieve safe destruction, improve shredding efficiency, and produce multimedia media destruction machines that do not produce harmful substances. The information carrier destruction residues leave no hidden dangers and ensure that the information can never be restored. Summary of the invention

[0005] The technical problem to be solved by the present invention is that the current medium destruction device cannot achieve safe destruction of information carriers, and the destruction residues leave hidden dangers and produce harmful substances.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is to provide a multimedia media destruction machine, including a whole machine housing, wherein the whole machine housing is provided with:

[0007] A two-stage crushing mechanism is arranged in the medium crushing bin of the whole machine housing, and includes crushing cutters and a rotor drum grinding assembly arranged above and below, wherein the rotor drum grinding assembly is retractably arranged below the crushing cutters, and a crushing bin door corresponding to the crushing bin is arranged on the front of the whole machine housing;

[0008] The dust removal and purification filter cartridge is arranged in the dust removal and purification bin of the whole machine housing, and includes a negative pressure dust removal fan and a dust removal filter barrel. The left side of the whole machine housing is provided with a dust removal and purification bin door corresponding to the dust removal and purification filter cartridge.

[0009] In the above scheme, a closed first-level crushing bin is provided on the outside of the crushing tool, and the first-level crushing bin is fixed by screws. A closed second-level crushing bin is provided on the outside of the rotor drum grinding assembly, and the second-level crushing bin includes a bin body and a handle arranged on the outer side of the bin body for manual pushing and pulling.

[0010] In the above scheme, slide grooves are provided on both sides of the inner wall of the medium crushing bin, and U-shaped fixing strips are provided on both sides of the bottom of the rotor drum grinding assembly, and a baffle is provided at the opening of the outer end of the U-shaped fixing strip, and a slide rail adapted to the slide groove is provided in the U-shaped fixing strip, and the configuration of the slide groove, the slide rail and the baffle is as follows:

[0011] The rotor roller grinding assembly is pushed inward, the slide rail slides inward along the slide groove, the rotor roller grinding assembly enters the secondary crushing bin, and the baffle rests against the front end of the slide groove and is fixed by a detachable screw.

[0012] In the above scheme, a filter screen is provided below the discharge port of the rotor drum grinding assembly, a filter screen bracket is provided at the bottom of the rotor drum grinding assembly, the filter screen is placed in the filter screen bracket, and is fixed at the discharge port of the rotor drum grinding assembly by fastening screws.

[0013] In the above scheme, a feed bin connected to the medium crushing bin is provided on the top of the whole machine housing, a feed bin cover is provided on the top of the feed bin, and an open end of the feed bin cover is fixed by a bin cover lock.

[0014] In the above scheme, a motor rotation direction inspection port is provided on the right side of the whole machine housing, a rotation button is provided inside, and a protective cover is provided at the motor rotation direction inspection port.

[0015] In the above scheme, the rotor drum grinding assembly includes a rotor cutter and stator cutters arranged on both sides of the rotor cutter. A positioning plate is provided at the bottom of the stator cutter, and the stator cutter is fixed to both sides of the bottom of the rotor drum grinding assembly through the positioning plate.

[0016] In the above scheme, a support shaft for installing the rotor cutter is provided in the secondary crushing bin, the rotor cutter is mounted on the support shaft, a square key is provided on the support shaft, a keyway matching the square key is provided in the rotor cutter, and the outer end is fixed to the outer wall of the secondary crushing bin by a fixing flange.

[0017] In the above scheme, a debris collection box is provided below the rotor drum grinding assembly, the filter screen is placed in the debris collection box, tailing detection photoelectric sensors for detecting whether the debris has been cleaned up are provided on both sides of the top of the debris collection box, and a collection bag is fixedly provided below the debris collection box.

[0018] In the above scheme, an operation panel is also provided on the whole machine housing, and the operation panel is provided with a power switch, an emergency stop switch, a power indicator light, a start button, a stop button, a reverse button, a door open / full material indicator light, a jam indicator light and a stop feeding indicator light.

[0019] Compared with the prior art, the present invention includes a complete machine housing, a double-stage crushing mechanism arranged in a crushing bin of the complete machine housing, and a dust removal and purification filter cartridge arranged in a dust removal and purification bin of the complete machine housing, the double-stage crushing mechanism includes crushing cutters and a rotor drum grinding assembly arranged above and below, the rotor drum grinding assembly can be pulled out and arranged below the crushing cutter, a crushing bin door corresponding to the crushing bin is arranged on the front of the complete machine housing, the dust removal and purification filter cartridge includes a negative pressure dust removal fan and a dust removal filter barrel, and a dust removal and purification bin door corresponding to the dust removal and purification filter cartridge is arranged on the left side of the complete machine housing. The whole adopts a closed structure, the double-stage crushing mechanism realizes complete destruction of the medium, improves crushing efficiency, the pull-out rotor drum grinding assembly is easy to take and put, and is convenient for inspection and maintenance, and the built-in dust removal and purification filter cartridge can filter air, remove harmful substances, and improve environmental safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the multimedia medium destruction machine of the present invention;

[0021] Figure 2 It is a schematic diagram of the internal structure of the multimedia medium destruction machine of the present invention;

[0022] Figure 3 It is a schematic diagram of the structure of the rotor drum grinding assembly pulled out in the present invention;

[0023] Figure 4 This is a schematic diagram of the rotor tool installation structure in the present invention;

[0024] Figure 5 It is a structural schematic diagram of the installation of the nail cutter in the present invention;

[0025] Figure 6 A side view of a rotor cutter and a stator cutter in the present invention;

[0026] Figure 7 For the present invention Figure 2 A partial enlarged schematic diagram of part A in the middle. DETAILED DESCRIPTION

[0027] The present invention provides a multimedia media destruction machine, which is convenient for achieving safe destruction, improving crushing efficiency, and not generating harmful substances. The information carrier is destroyed without leaving any hidden dangers, ensuring that the information can never be restored. The present invention is described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0028] like Figure 1 As shown, the multimedia medium destruction machine provided by the present invention includes a whole machine housing 100, and the whole machine housing 100 is provided with:

[0029] The double-stage crushing mechanism is arranged in the crushing bin of the whole machine housing 100, with crushing cutters 300 and rotor drum grinding assembly 400 arranged above and below, and the rotor drum grinding assembly 400 is arranged under the crushing cutter 300 in a retractable manner, and a crushing bin door 120 corresponding to the crushing bin is arranged on the front of the whole machine housing 100;

[0030] The dust removal and purification filter cartridge 500 is arranged in the dust removal and purification chamber of the whole machine housing 100, and includes a negative pressure dust removal fan and a dust removal filter barrel. The left side of the whole machine housing 100 is provided with a dust removal and purification chamber door 510 corresponding to the dust removal and purification filter cartridge 500.

[0031] The crushing chamber door 120 and the dust removal and purification chamber door 510 are provided with a handle switch 150 on the outside, a lock tongue 140 on the inside, and a lock buckle engaged with the lock tongue 140 on the inner wall of the housing, which is tightly engaged and convenient to open and close. A fan blade air outlet 502 is also provided on the crushing chamber door.

[0032] The shell of the present invention adopts a fully enclosed structure as a whole, and the interior is divided into a crushing chamber and a dust removal and purification chamber, and the crushing chamber has a two-stage high-efficiency crushing design. A high-speed turbine rotating blade can be used as a primary crushing blade group to crush the material into 10x8-15mm particles, and then fall into a uniquely designed drum blade group to use a metal screen to grind and screen into fine powder with a diameter of less than 0.2mm, so as to achieve safe destruction, and the information carrier is destroyed without leaving any hidden dangers, ensuring that the information can never be restored. The fully enclosed overall design, combined with the advanced dust removal and purification system built into the dust removal and purification chamber, filters the air through the purification filter element that comes with the dust removal filter cartridge to remove harmful substances, so that the working environment fully meets office standards. It has the characteristics of maintenance-free, durable and low cost. It is simple and easy to operate, just press the button to start, and it will automatically stop after the crushing is completed. The pull-out slide-type drum grinding blade group has the advantages of easy access and maintenance.

[0033] The high-speed turbine rotary grinding and cutting method is adopted, which will generate a large amount of debris and dust during the crushing process. In order to prevent the inside of the machine from being polluted by dust and maintain a clean and tidy working environment, an internal independent vacuum dust removal system design is adopted, which can effectively remove the dust pollution generated during the crushing process. The dust removed by the vacuum airflow is concentrated in the HPEA filter element of the dust filter. When the filter element is full of dust, the indicator light above the dust filter lights up to alarm, and the filter element needs to be cleaned or replaced immediately.

[0034] like Figure 2 and Figure 3 As shown, a closed primary crushing bin is provided on the outside of the crushing tool 300, which is fixed by screws. A closed secondary crushing bin is provided on the outside of the rotor drum grinding assembly 400, which includes a bin body and an out-of-city purification filter cartridge 401 arranged on the outer side of the bin body for manual pushing and pulling.

[0035] Slide grooves 410 are provided on both sides of the inner wall of the medium crushing bin 110, and U-shaped fixing strips 430 are provided on both sides of the bottom of the rotor drum grinding assembly 400, and a baffle is provided at the opening of the outer end of the U-shaped fixing strip 430, and a slide rail 420 adapted to the slide groove 410 is provided in the U-shaped fixing strip 430. The configuration of the slide groove 410, the slide rail 420 and the baffle is as follows:

[0036] The rotor roller grinding assembly 400 is pushed inward, the slide rail 420 slides inward along the slide groove 410, the rotor roller grinding assembly 400 enters the secondary crushing bin, and the baffle rests against the front end of the slide groove 410 and is fixed by a detachable screw.

[0037] A filter screen 441 is provided below the discharge port of the rotor drum grinding assembly 400, a filter screen bracket 440 is provided at the bottom of the rotor drum grinding assembly 400, and the filter screen 441 is placed in the filter screen bracket 440 and fixed at the discharge port of the rotor drum grinding assembly 400 by fastening screws.

[0038] like Figure 1 As shown, a feed bin 200 connected to the medium crushing bin 110 is provided on the top of the whole machine housing 100, a feed bin cover 210 is provided on the top of the feed bin 200, the opening end of the feed bin cover is fixed by a bin cover lock, a feeding port 211 connected to the feed bin 200 is provided on the feed bin cover 210, and the crushing tool 300 is located below the feeding port 211 and is connected to the feeding port 211.

[0039] The right side of the whole machine housing 100 is provided with a motor rotation direction inspection port, a rotation button is provided inside, and a protective cover is provided at the motor rotation direction inspection port; specifically:

[0040] (1) Loosen the four cross-shaped screws on the protective cover on the right side of the device and remove the protective cover.

[0041] (2) Rotate the power switch 131 on the device operation panel 130 clockwise 90 degrees to the "I" position to turn on the power;

[0042] (3) The yellow “power” indicator light on the operation panel 130 lights up (if the power indicator light 133 is not lit, it means that the power is not turned on);

[0043] (4) Press the green “Start” button on the operation panel 130 to start the device;

[0044] (5) Remove the protective cover from the right side of the equipment and observe whether the direction of rotation of the cutting tool is clockwise;

[0045] (6) If the cutting tool rotates counterclockwise, it means that the phase lines of the power supply wires are connected in reverse order;

[0046] (7) Turn off the power switch 131; disconnect the connected power supply;

[0047] (8) Reconnect the phase sequence of the three RST live wires of the power supply.

[0048] like Figure 4 , Figure 5 , Figure 6 As shown, the rotor drum grinding assembly 400 includes a rotor cutter 450 arranged in a secondary crushing bin, and a stator cutter 470 arranged on both sides of the rotor cutter 450. A positioning plate 471 is provided at the bottom of the stator cutter 470, and the stator cutter 470 is fixed to both sides of the bottom of the grinding and cutting assembly through the positioning plate 471.

[0049] A support shaft 460 is provided in the secondary crushing bin, and a rotor cutter 450 is mounted on the support shaft 460 . A square key 461 is provided on the support shaft 460 . A keyway 451 matching the square key 461 is provided in the rotor cutter 450 , and the outer end is fixed to the outer wall of the secondary crushing bin through a fixing flange 442 .

[0050] A debris collection box is also provided below the rotor drum grinding assembly 400, and a filter screen 441 is placed at the entrance of the debris collection box. Tailing detection photoelectric sensors 443 for detecting whether the debris has been cleaned up are provided on both sides of the top of the debris collection box, and a collection bag is fixedly provided below the debris collection box. In this embodiment, the debris collection box is used to collect and screen the crushed debris, and the tailing detection photoelectric sensor 443 is used to detect the amount of internal waste, and it has intelligent overload detection to remind the operator to clean it up in time. Specifically, a 35-liter large-capacity debris collection box can be built in to reduce the cleaning cycle. When the debris collection box is full and the crushing chamber door is opened, the machine automatically stops, and a red alarm indicator light prompts and other safety designs.

[0051] The whole machine housing 100 is also provided with an operation panel 130, on which a power switch 131, a power switch 132, a power indicator light 133, a start button 134, a stop button 136, a reverse button 136, a door open / full material indicator light 137, a jam indicator light 138 and a stop feeding indicator light 139 are provided. Specifically:

[0052] like Figure 7 As shown, the operation panel 130 is located at the left front end of the device, and the main buttons and functions are shown as follows:

[0053] Power switch 131: Turn the switch 90 degrees clockwise to the "I" position to turn on the power. Turn the switch counterclockwise to the "O" position to turn off the power.

[0054] Power switch 132: In an emergency, press the red button of the power switch 132, and the crushing motor and eddy current motor of the device will stop running at the same time. A special key is required to release the power switch 132 again. Take out the black key provided with the machine and insert it into the lock hole of the power switch 132. Turn the key, and the red button of the power switch 132 will pop up.

[0055] Power indicator light 133: When the power switch 131 is rotated to the "I" position, the power is turned on and the yellow power indicator light 133 lights up at the same time.

[0056] Start button 134: After the power is turned on and the yellow power indicator light 133 lights up, press the green "start" button, and the crushing bin drive motor and the turbine airflow motor of the equipment will start running at the same time.

[0057] Stop button 135: When the equipment is running, press the red "Stop" button to stop the equipment. After 30 seconds, the dust removal system will automatically stop.

[0058] Reverse button 136: When a jamming stop alarm occurs during the crushing process, press and hold the green "reverse" button, and the cutting tool will reverse to remove the jammed material in the crushing chamber.

[0059] Door open / full indicator light 137: When the feed bin cover 610, crushing bin door 400 or dust removal and purification bin door 510 of the equipment is opened, the red indicator light comes on and the equipment automatically stops. When the red indicator light comes on, it indicates that the debris collection box is full of debris and needs to be cleaned.

[0060] Jam indicator light 138: If jam occurs during the crushing process and the machine stops, the red indicator light will light up to give an alarm.

[0061] Stop feeding indicator light 139: When the red indicator light is on, it means that the crushing and destruction materials put into the crushing bin have reached saturation. At this time, no more materials can be put into the crushing bin to avoid overloading and blocking of the equipment. When the red indicator light goes out, you can continue to put the materials to be crushed into the crushing bin.

[0062] Preferably, locking wheels are respectively provided at the four corners of the bottom of the overall shell, and a brake assembly is provided on the sliding locking wheel. The device is moved by the locking wheel, and then the brake assembly is stepped on to lock the locking wheel, making the locking wheel immovable, thereby achieving safe placement of the device and convenient movement, and the device will not move during use.

[0063] The crushing media of the present invention are: optical storage discs such as CDs, DVDs, BL-DVDs, USB memories, SSD solid-state hard disks, memory cards such as CF, SD, TF, MS, M2, MMC, magnetic cards such as IC, ID, smart phones, SDRAM, DDRSDRAM, RDRAM memories, integrated circuit chips, and PCB circuit boards.

[0064] The working method of the present invention is as follows:

[0065] 1. Turn the power switch 131 clockwise 90 degrees to "I", the power is turned on, and the yellow power indicator light 133 lights up at the same time;

[0066] 2. Press the green start button 134, the crushing bin drive motor and the negative pressure dust removal fan of the whole machine housing 100 start running at the same time, and the required crushing materials are put into the crushing bin from the feeding port 211 for crushing; when performing batch crushing, the corresponding amount of materials can be put in according to the prompt of the stop feeding indicator 139 to perform continuous crushing. Avoid continuous input of too much material, which may cause the equipment to be overloaded and stuck.

[0067] 3. After all materials are crushed and destroyed, wait for 30 seconds and then press the red "Stop" button. The equipment will stop and enter standby mode. The negative pressure dust removal fan will continue to run for 30 seconds and then stop automatically.

[0068] 4. If the device is not to be used for a long period of time, turn the power switch 131 on the left side of the device operation panel 130 counterclockwise 90 degrees from the "I" position to the "O" position to cut off the power.

[0069] Please turn off the equipment after the equipment has completed the crushing and running at no load for 30 seconds to avoid residual materials being retained in the crushing bin!

[0070] In an emergency, the device will stop working by pressing the power switch 132 on the left side of the operation panel 130. The device will automatically pop up after the switch is turned counterclockwise, and the device will return to the normal standby state.

[0071] 5. Overload and jamming of the equipment during crushing:

[0072] During the crushing process, the equipment suddenly stops running, and automatically starts the reverse program and then stops automatically. The red "stuck" fault indicator light and the "stop feeding" indicator light up at the same time to give an alarm prompt. At this time, the equipment has an overload jam. The jam fault usually occurs because too much material is put into the first-level crushing bin, causing the first-level crushing bin to be blocked, causing the main drive motor to overload and stop. The specific solution is:

[0073] (1) Clean the first-level crushing bin:

[0074] Turn off the device power switch 131 to cut off the power supply.

[0075] Use the metal key provided with the machine to unlock the protective cover of the crushing chamber and flip the cover back.

[0076] Clear the uncrushed material from the crushing bin and cutting tool.

[0077] Close the crushing chamber cover and lock it with the key.

[0078] (2) Clean the first-level crushing silo:

[0079] Turn off the device power switch 131 to cut off the power supply.

[0080] Open the door of the crushing bin cabinet, loosen the thumb screws of the crushing lower bin protective cover, and pull the protective cover outward.

[0081] Clear material debris from the lower hopper and cutting tool.

[0082] Close the lower hopper cover and tighten it by hand.

[0083] Close the crushing cabinet door and restart the process equipment.

[0084] 6. Automatic sensor alarm when the debris is full:

[0085] During the crushing process of the equipment, when the red "door open / full material" indicator light comes on, it indicates that the tailings in the debris collection bag are full and the debris collection bag needs to be cleaned and replaced.

[0086] The specific steps to replace the debris collection bag are:

[0087] (1) When the red "door open / full material" indicator light comes on, the equipment automatically stops;

[0088] (2) Open the crushing cabinet door on the right front of the equipment, pull out the debris collection box, take out the plastic bag full of debris, and then replace it with a new debris collection bag.

[0089] (3) Close the door of the crushing cabinet, restart the equipment, and continue the crushing work.

[0090] 7. Cleaning of dust filter

[0091] (1) Turn the power switch 131 on the left side of the device operation panel 130 clockwise 90 degrees from the "O" position to the "I" position to turn on the power. The yellow power indicator light 133 lights up at the same time.

[0092] (2) Press the green "Start" button, and the crushing bin drive motor and negative pressure dust removal fan of the equipment will start running at the same time.

[0093] (3) Open the dust removal and purification chamber door and check whether the indicator light above the filter is on.

[0094] (4) Turn off the device power switch 131 to cut off the power supply.

[0095] (5) Open the dust removal and purification compartment door on the left and take out the dust filter.

[0096] (6) Hold the filter cover handle and lift the cover with the HPEA filter element out of the filter cartridge.

[0097] (7) Remove the two screws on the filter cover that secure the filter element.

[0098] (8) Remove the HPEA filter element from the filter cover.

[0099] (9) Place the filter element in a plastic bag and tie the bag tightly. Pat the filter element with your hands or knock the filter element in the plastic bag on the ground 3-4 times to remove dust from the filter element.

[0100] (10) Repeat the above steps until the filter element is visually clean and no dust particles are attached to the filter cotton of the filter element.

[0101] (11) Reinstall the HPEA filter element into the filter cover and tighten it with screws.

[0102] (12) After cleaning the dust and impurities in the filter cartridge, install the upper cover with the HPEA filter element back into the filter cartridge.

[0103] (13) Install the dust filter with the HPEA filter element cleaned or replaced back into the dust removal and purification chamber of the equipment.

[0104] (14) Close the dust removal and purification chamber door and restart the equipment.

[0105] Compared with the prior art, the present invention includes a complete machine housing, a double-stage crushing mechanism arranged in a crushing bin of the complete machine housing, and a dust removal and purification filter cartridge arranged in a dust removal and purification bin of the complete machine housing, the double-stage crushing mechanism includes crushing cutters and a rotor drum grinding assembly arranged above and below, the rotor drum grinding assembly can be pulled out and arranged below the crushing cutters, a crushing bin door corresponding to the crushing bin is arranged on the front of the complete machine housing, the dust removal and purification filter cartridge includes a negative pressure dust removal fan and a dust removal filter barrel, and a dust removal and purification bin door corresponding to the dust removal and purification filter cartridge is arranged on the left side of the complete machine housing. The whole adopts a closed structure, the double-stage crushing mechanism realizes complete destruction of the medium and improves crushing efficiency, the pull-out rotor drum grinding assembly is easy to take and put, and is convenient for inspection and maintenance, and the built-in dust removal and purification filter cartridge can filter air, remove harmful substances, and improve environmental safety.

[0106] The present invention is not limited to the above-mentioned optimal implementation mode. Anyone should be aware that any structural changes made under the inspiration of the present invention, and any technical solutions that are the same or similar to the present invention, fall within the protection scope of the present invention.

Claims

1. A multimedia media destruction machine, comprising a complete machine housing, characterized in that: The whole machine housing is provided with: A two-stage crushing mechanism is arranged in the medium crushing bin of the whole machine housing, and includes crushing cutters and a rotor drum grinding assembly arranged above and below, wherein the rotor drum grinding assembly is retractably arranged below the crushing cutters, and a crushing bin door corresponding to the crushing bin is arranged on the front of the whole machine housing; A dust removal and purification filter cartridge is arranged in the dust removal and purification bin of the whole machine housing, and comprises a negative pressure dust removal fan and a dust removal filter barrel. The left side of the whole machine housing is provided with a dust removal and purification bin door corresponding to the dust removal and purification filter cartridge; A closed primary crushing bin is provided on the outer side of the crushing tool, and the primary crushing bin is fixed by screws. A closed secondary crushing bin is provided on the outer side of the rotor drum grinding assembly, and the secondary crushing bin includes a bin body and a handle arranged on the outer side of the bin body for manual pushing and pulling; Slide grooves are provided on both sides of the inner wall of the medium crushing bin, U-shaped fixing strips are provided on both sides of the bottom of the rotor roller grinding assembly, and baffles are provided at the openings of the outer ends of the U-shaped fixing strips. A slide rail adapted to the slide groove is provided in the U-shaped fixing strip, and the slide groove, the slide rail and the baffle are configured as follows: the rotor roller grinding assembly is pushed inward, the slide rail slides inward along the slide groove, the rotor roller grinding assembly enters the secondary crushing bin, and the baffle abuts against the front end of the slide groove and is fixed by a detachable screw; A filter screen is provided below the discharge port of the rotor drum grinding assembly, a filter screen bracket is provided at the bottom of the rotor drum grinding assembly, the filter screen is placed in the filter screen bracket, and is fixed at the discharge port of the rotor drum grinding assembly by fastening screws; A feed bin connected to the medium crushing bin is disposed on the top of the whole machine housing, and a feed bin cover is disposed on the top of the feed bin. The open end of the feed bin cover is fixed by a bin cover lock.

2. The multimedia media destruction machine according to claim 1, characterized in that: A motor rotation direction inspection port is provided on the right side of the whole machine housing, a rotation button is provided inside, and a protective cover is provided at the motor rotation direction inspection port.

3. The multimedia media destruction machine according to claim 1, characterized in that: The rotor drum grinding assembly includes a rotor cutter and stator cutters arranged on both sides of the rotor cutter. A positioning plate is provided at the bottom of the stator cutter, and the stator cutter is fixed to both sides of the bottom of the rotor drum grinding assembly through the positioning plate.

4. The multimedia media destruction machine according to claim 3, characterized in that: A support shaft for installing the rotor cutter is provided in the secondary crushing bin, the rotor cutter is sleeved on the support shaft, a square key is provided on the support shaft, a keyway matching the square key is provided in the rotor cutter, and the outer end is fixed to the outer wall of the secondary crushing bin by a fixing flange.

5. The multimedia media destruction machine according to claim 1, characterized in that: A debris collection box is provided below the rotor drum grinding assembly, the filter screen is placed in the debris collection box, tailing detection photoelectric sensors for detecting whether the debris has been cleaned up are provided on both sides of the top of the debris collection box, and a collection bag is fixedly provided below the debris collection box.

6. The multimedia media destruction machine according to claim 1, characterized in that: The whole machine housing is also provided with an operation panel, on which a power switch, an emergency stop switch, a power indicator light, a start button, a stop button, a reverse button, a door open / full material indicator light, a jam indicator light and a feed stop indicator light are provided.

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