CN110774468A - Novel sealed plastic machine for floor processing - Google Patents

Abstract

The invention discloses a novel sealed plastic machine for floor processing, which comprises a supporting leg, a machine case, a crushing motor, a crushing shaft, a crushing wheel, a mesh sieve plate, an inclined guide plate, a preheating pipe, an inclined guide plate, a plasticizing motor, a plasticizing stirring shaft, a spiral blade, a plasticizing coil, a guide hopper, a dustproof impurity filtering guide plate structure, a movable temporary storage and collection transfer box structure and a detachable observation and cleaning frame structure. The device comprises a guide hopper, a connecting seat, a movable plate, a impurity filtering net and an impurity collecting bag, and is beneficial to filtering impurities of raw materials entering the guide hopper so as to ensure the processing cleanness; the arrangement of the dustproof cover is beneficial to playing a good dustproof role on the raw material entering the guide hopper, and the smooth processing is ensured; the universal wheel with the brake pad, the collection storage box, the mounting lining seat, the material guide door and the cleaning bolt are arranged, so that the raw materials after the transfer processing can be collected, and the convenience of the subsequent processing work can be ensured.

Description

Novel sealed plastic machine for floor processing

Technical Field

The invention belongs to the technical field of floor processing, and particularly relates to a novel sealed plastic machine for floor processing.

Background

According to the production process of plastic products, plastic machines can be divided into four major categories, namely plastic compounding machines, plastic molding machines, plastic secondary processing machines, plastic processing auxiliary machines or devices and the like. Plastics compounding machines are used in the manufacture of various forms of plastics compounds including kneaders, plastizers (roll mills and internal mixers), pelletizers, screens, crushers, mills and the like. The plastic forming machine is also called plastic one-time processing machine and is used for forming plastic semi-products or products, and comprises a compression molding machine, an injection molding machine, an extrusion molding machine, a blow molding machine, a calender, a rotational molding machine, a foaming machine and the like. The secondary plastic processing machine is used for reprocessing and post-processing of plastic semi-products or products, and comprises a thermoforming machine, a welding machine, a heat sealing machine, a hot stamping machine, a vacuum evaporation machine, a flocking machine, a printing machine and the like. Metalworking machines are also commonly used for secondary processing of plastics. The auxiliary plastic processing machinery or device is used for realizing rationalization of a plastic processing process and comprises an automatic metering and feeding device, an automatic leftover material recycling device, an automatic injection product taking-out device, an injection mold quick replacing device, an injection mold cooling machine, an automatic thickness measuring device, raw material conveying and storing equipment and the like. Such auxiliary machines or devices have become an indispensable part of the automation of modern plastic processing processes.

However, the existing sealed plastic machine also has the problems that the entering raw materials cannot be subjected to impurity removal and dust prevention operation, the processing condition cannot be observed, and the operation of leading out and transferring is inconvenient.

Therefore, it is necessary to invent a new sealed plastic machine for floor processing.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the utility model provides a novel a sealed plastics machine for floor processing to there is unable edulcoration dustproof operation to getting into the raw materials in solving current sealed plastics machine, unable observation processing condition and the problem of the transfer operation of being not convenient for derive.

In order to solve the technical problems, the invention adopts the technical scheme that: a novel sealed plastic machine for floor processing comprises supporting legs, a machine case, a grinding motor, a grinding shaft, a grinding wheel, a mesh sieve plate, an inclined guide plate, a preheating pipe, an inclined guide plate, a plasticizing motor, a plasticizing stirring shaft, spiral blades, a plasticizing coil and a guide hopper, wherein the guide plate structure can be used for dust-proof impurity filtering, the movable temporary storage and collection transfer box structure and the detachable observation and cleaning frame structure are arranged, and the supporting legs are respectively and longitudinally bolted at four corners of the bottom of the machine case; the transverse right end of the crushing motor is connected to the left upper side of the case through a bolt; the transverse left end coupling of the crushing shaft is connected to the right end of the output shaft of the crushing motor; the outer wall of the crushing shaft is sequentially connected with crushing wheels in a key mode from left to right; the mesh sieve plate is connected to the upper side of the inside of the case through transverse screws and is positioned at the lower part of the crushing wheel; the left upper end of the inclined guide plate is connected to the left upper wall of the inner part of the case through a bolt and is positioned at the lower part of the mesh sieve plate; the lower surface of the inclined guide plate is sequentially connected with a preheating pipe by screws from left to right; the right upper end of the inclined guide plate is bolted to the middle position of the right wall in the case and is positioned at the lower part of the inclined guide plate; the transverse right end of the plasticizing motor is connected to the left lower side of the case through a bolt; the transverse left end coupler of the plasticizing stirring shaft is connected to the right end of an output shaft of the plasticizing motor; the outer wall of the plasticizing stirring shaft is welded with a spiral blade; the plasticizing coil is transversely bolted to the left outlet at the bottom of the case; the diversion hopper is connected to the right outlet of the bottom of the case through a bolt; the dustproof impurity filtering guide plate structure is connected with the case; the movable temporary storage collection transfer box structure is connected with the supporting legs; the detachable observation and cleaning frame structure is connected with the case; the dustproof impurity filtering guide plate structure comprises a dustproof cover, a guide hopper, a connecting seat, a movable plate, an impurity filtering net and an impurity collecting bag, wherein the dustproof cover is buckled at the upper end of the guide hopper; the upper sides of the left wall and the right wall in the guiding hopper are respectively connected with a connecting seat through bolts; the outer ends of the movable plates are respectively connected with the middle position in the connecting seat through bolts and nuts; the inside of the movable plate is embedded with a trash filter net; the impurity collecting bags respectively penetrate through the outlets at the middle positions of the inner sides of the left wall and the right wall of the guide hopper and are connected to the outlets at the middle positions of the lower parts of the movable plates through screws.

Preferably, the movable temporary storage, collection and transfer box structure comprises universal wheels with brake pads, a collection and storage box, adsorption pads, a mounting lining seat, a material guide door and cleaning bolts, wherein the universal wheels with the brake pads are respectively bolted at four corners of the bottom of the collection and storage box; the right longitudinal screw of the collecting and storing box is connected with an adsorption piece; the mounting lining seat is transversely bolted to the front part and the rear part of the left side of the bottom of the collecting and storing box; the longitudinal lower end of the material guide door is connected with the left end between the mounting lining seats in a shaft mode; the cleaning bolt transversely penetrates through the upper side of the interior of the guide door and is in threaded connection with the upper left wall of the collecting and storing box.

Preferably, the detachable observation and cleaning frame structure comprises a handheld sleeve, a handheld rod, a cleaning frame, an observation plate, a sealing strip and a detaching bolt, wherein the handheld sleeve is respectively and longitudinally sleeved on the outer wall of the left end of the handheld rod; the handheld rods are respectively connected to the upper end and the lower end of the cleaning frame through bolts; an observation plate is embedded in the cleaning frame; the periphery of the right surface of the cleaning frame is glued with a sealing strip; the disassembling bolts are respectively inserted in the circular mounting holes formed in the four corners of the interior of the cleaning frame.

Preferably, the dustproof cover is a circular stainless steel cover.

Preferably, the lower end of the guide-in hopper is connected with an inlet at the upper middle position of the case in a threaded mode.

Preferably, the movable plate is an aluminum alloy plate.

Preferably, the impurity filtering net is a rectangular stainless steel filtering net.

Preferably, the impurity collecting bag is a nylon cloth bag.

Preferably, the collecting and storing box is arranged in an adsorption mode through the adsorption piece and the supporting legs arranged on the right side.

Preferably, the adsorption sheet body is a permanent magnet sheet.

Preferably, the material guide door is an aluminum alloy door.

Preferably, the collecting and storing box is an aluminum alloy box with a rectangular longitudinal section.

Preferably, the cleaning frame is arranged at the observation port in the middle of the left side of the chassis in a sealing manner through a sealing strip.

Preferably, the cleaning frame is connected with the case through a dismounting bolt.

Preferably, the handheld sleeve specifically adopts a rubber sleeve, and the handheld rod adopts L-shaped aluminum alloy rods which are oppositely arranged.

Preferably, the observation plate body is made of a transparent glass fiber reinforced plastic plate.

Preferably, the sealing strip is a rubber strip.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the guide hopper, the connecting seat, the movable plate, the impurity filtering net and the impurity collecting bag are arranged, so that impurities in raw materials entering the guide hopper can be filtered, and the processing cleanness can be ensured.

2. In the invention, the arrangement of the dustproof cover is beneficial to playing a good dustproof role on the raw material entering the guide hopper, and the smooth processing is ensured.

3. According to the invention, the universal wheel with the brake pad, the collection and storage box, the mounting lining seat, the material guide door and the cleaning bolt are arranged, so that the raw materials after transfer processing can be collected, and the convenience of subsequent processing work can be ensured.

4. In the invention, the arrangement of the adsorption sheet is beneficial to adsorbing and fixing the collecting and storing box, and is convenient for collecting and transferring operation.

5. According to the invention, the cleaning frame, the observation plate, the sealing strip and the dismounting bolt are arranged, so that the processing condition can be observed, the residual impurities or raw materials in the case can be dismounted and cleaned, and the processing operation is convenient.

6. In the invention, the arrangement of the handheld sleeve and the handheld rod is beneficial to taking down the cleaning frame by hands, thereby facilitating the cleaning operation.

7. In the invention, the arrangement of the supporting legs is favorable for playing a good supporting role.

8. In the invention, the arrangement of the flow guide hopper is beneficial to leading out the processed raw materials in time.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic structural view of the dustproof impurity filtering guide plate structure of the present invention.

Fig. 3 is a schematic structural diagram of the structure of the movable temporary storage collection transfer box of the invention.

Fig. 4 is a schematic structural diagram of a detachable observation and cleaning frame structure of the present invention.

In fig. 1 to 4:

1. supporting legs; 2. a chassis; 3. a grinding motor; 4. a crushing shaft; 5. a grinding wheel; 6. a mesh sieve plate; 7. an inclined guide plate; 8. a preheating pipe; 9. an inclined material guide plate; 10. a plasticizing motor; 11. a plasticizing stirring shaft; 12. helical leaves; 13. plasticizing the coil; 14. a flow guide hopper; 15. the dust-proof impurity filtering guide plate structure; 151. a dust cover; 152. a lead-in hopper; 153. a linking seat; 154. a movable plate; 155. filtering the impurity net; 156. collecting a sundry bag; 16. a movable temporary storage collection transfer box structure; 161. universal wheels with brake pads; 162. a collection and storage box; 163. an adsorption sheet; 164. installing a lining seat; 165. a material guiding door; 166. cleaning the bolt; 17. a detachable observation cleaning frame structure; 171. a hand-held sleeve; 172. a hand-held wand; 173. cleaning the frame; 174. an observation plate; 175. a sealing strip; 176. and (5) disassembling the bolt.

Detailed Description

The invention is described in detail below with reference to the attached drawing figures:

as shown in the attached drawings 1 and 2, the novel sealed plastic machine for floor processing comprises a supporting leg 1, a machine case 2, a crushing motor 3, a crushing shaft 4, a crushing wheel 5, a mesh sieve plate 6, an inclined guide plate 7, a preheating pipe 8, an inclined guide plate 9, a plasticizing motor 10, a plasticizing stirring shaft 11, a spiral blade 12, a plasticizing coil 13, a guide hopper 14, a dustproof impurity filtering guide plate structure 15, a movable temporary storage collection transfer box structure 16 and a detachable observation cleaning frame structure 17, wherein the supporting leg 1 is respectively connected to four corners of the bottom of the machine case 2 by longitudinal bolts; the transverse right end of the crushing motor 3 is connected to the left upper side of the case 2 through a bolt; the transverse left end coupling of the crushing shaft 4 is connected with the right end of the output shaft of the crushing motor 3; the outer wall of the crushing shaft 4 is sequentially connected with crushing wheels 5 in a key mode from left to right; the mesh sieve plate 6 is connected with the upper side of the inside of the case 2 by a transverse screw and is positioned at the lower part of the crushing wheel 5; the left upper end of the inclined guide plate 7 is bolted to the left upper wall in the case 2 and is positioned at the lower part of the mesh sieve plate 6; the lower surface of the inclined guide plate 7 is sequentially connected with a preheating pipe 8 by screws from left to right; the right upper end of the inclined guide plate 9 is bolted to the middle position of the right wall in the case 2 and is positioned at the lower part of the inclined guide plate 7; the transverse right end of the plasticizing motor 10 is connected to the left lower side of the case 2 through a bolt; the plasticizing stirring shaft 11 is transversely connected to the right end of an output shaft of the plasticizing motor 10 through a left end coupler; the outer wall of the plasticizing stirring shaft 11 is welded with a spiral blade 12; the plasticizing coil 13 is transversely bolted at the outlet at the left side of the bottom of the case 2; the diversion hopper 14 is connected to the right outlet of the bottom of the case 2 through a bolt; the dustproof impurity filtering guide plate structure 15 is connected with the case 2; the movable temporary storage collection transfer box structure 16 is connected with the supporting legs 1; the detachable observation and cleaning frame structure 17 is connected with the case 2; the dust-proof impurity filtering guide plate structure 15 comprises a dust-proof cover 151, a leading-in hopper 152, a connecting seat 153, a movable plate 154, a impurity filtering net 155 and an impurity collecting bag 156, wherein the dust-proof cover 151 is buckled at the upper end of the leading-in hopper 152; the upper sides of the left and right walls in the guiding-in hopper 152 are respectively connected with a connecting seat 153 by bolts; the outer ends of the movable plates 154 are respectively connected with the middle positions inside the connecting seats 153 through bolts and nuts; a trash filter 155 is embedded in the movable plate 154; the impurity collecting bag 156 penetrates through the middle position outlets on the inner sides of the left wall and the right wall of the guiding hopper 152 respectively, is connected to the lower middle position outlet of the movable plate 154 through screws, opens the dust-proof cover 151, pours the bottom plate processing raw materials into the guiding hopper 152, filters impurities through the impurity filtering net 155 in the movable plate 154, collects impurities through the impurity collecting bag 156, ensures that the processing operation is convenient and fast, and can adjust the inclination of the movable plate 154 by adjusting the bolts and nuts between the connecting seat 153 and the movable plate 154 to ensure that the impurity filtering operation is carried out smoothly.

In this embodiment, referring to fig. 3, the movable temporary storage, collection and transfer box structure 16 includes a universal wheel 161 with a brake pad, a collection and storage box 162, an adsorption pad 163, a mounting lining seat 164, a material guiding door 165 and a cleaning bolt 166, wherein the universal wheel 161 with a brake pad is respectively bolted to four corners of the bottom of the collection and storage box 162; the right longitudinal screw of the collecting and storing box 162 is connected with an adsorption piece 163; the mounting lining seat 164 is transversely bolted at the front part and the rear part of the left side of the bottom of the collecting and storing box 162; the lower longitudinal end of the material guide door 165 is axially connected with the left end between the mounting lining seats 164; cleaning bolt 166 transversely run through the inside upside of guide door 165, and the upper left wall of box 162 is deposited to threaded connection collection, through the processing of processes at different levels, the raw materials constantly exports through water conservancy diversion fill 14, box 162 is deposited to the accessible collection this moment, can shift the operation through taking brake block universal wheel 161, can adsorb fixed collection through adsorbing piece 163 and deposit box 162, be convenient for carry out stable collection operation, through taking off cleaning bolt 166, can open guide door 165, can derive the inside raw materials of box 162 is deposited to the collection, be convenient for shift the operation.

In this embodiment, referring to fig. 4, the detachable observation and cleaning frame structure 17 includes a handheld sleeve 171, a handheld rod 172, a cleaning frame 173, an observation plate 174, a sealing strip 175 and a detaching bolt 176, wherein the handheld sleeve 171 is respectively and longitudinally sleeved on the outer wall of the left end of the handheld rod 172; the handheld rods 172 are respectively bolted at the upper end and the lower end of the cleaning frame 173; an observation plate 174 is embedded in the cleaning frame 173; a sealing strip 175 is glued around the right surface of the cleaning frame 173; dismantle bolt 176 peg graft respectively inside the circular mounting hole that the inside four corners position of clearance frame 173 was seted up, in the processing, the processing condition is observed to accessible observation board 174, during the clearance, can take off dismantlement bolt 176, handheld cover 171 and handheld pole 172 are handed, can take off clearance frame 173, can be convenient for clear up the operation.

In this embodiment, specifically, the dust-proof cover 151 specifically adopts a circular stainless steel cover.

In this embodiment, specifically, the lower end of the introducing hopper 152 is screwed to the inlet at the middle position of the upper part of the cabinet 2.

In this embodiment, specifically, the movable plate 154 is specifically an aluminum alloy plate.

In this embodiment, the trash filter 155 is a rectangular stainless steel filter screen.

In this embodiment, the impurity collecting bag 156 specifically adopts a nylon cloth bag.

In this embodiment, specifically, the collecting and storing box 162 is disposed by being attracted to the supporting leg 1 disposed on the right side by an attraction piece 163.

In the present embodiment, the adsorption sheet 163 is specifically a permanent magnet sheet.

In this embodiment, specifically, the material guiding door 165 specifically adopts an aluminum alloy door.

In this embodiment, specifically, the collecting and storing box 162 specifically uses an aluminum alloy box with a rectangular longitudinal section.

In this embodiment, specifically, the cleaning frame 173 is sealed with the observation port at the middle position on the left side of the chassis 2 by a sealing strip 175.

In this embodiment, specifically, the cleaning frame 173 is connected to the chassis 2 by a detaching bolt 176.

In this embodiment, specifically, the hand-held sleeve 171 specifically uses a rubber sleeve, and the hand-held rod 172 uses an L-shaped aluminum alloy rod disposed oppositely.

In this embodiment, the observation plate 174 is made of a transparent glass fiber reinforced plastic plate.

In this embodiment, specifically, the sealing strip 175 specifically adopts a rubber strip.

In this embodiment, a 775 type motor is specifically used for the pulverizing motor 3 and the plasticizing motor 10.

In this embodiment, specifically, the preheating pipe 8 is a PTC100 type dry-fire pipe.

Principle of operation

In the invention, the dust cover 151 is opened, the bottom plate processing raw material is poured into the guide hopper 152, impurities are filtered through the impurity filtering net 155 in the movable plate 154, impurities are collected through the impurity collecting bag 156 to ensure convenient processing operation, the inclination of the movable plate 154 can be adjusted through adjusting the bolt and nut between the connecting seat 153 and the movable plate 154 to ensure smooth processing of the impurities filtering operation, the raw material is continuously guided out through the guide hopper 14 after processing treatment of each stage of processes, at the moment, the raw material can be collected through the collecting box 162, the transfer operation can be carried out through the universal wheel 161 with the brake sheet, the collecting box 162 can be adsorbed and fixed through the adsorption sheet 163 to facilitate stable collecting operation, the guide door 165 can be opened through taking down the cleaning bolt 166 to guide the raw material in the collecting box 162 to facilitate the transfer operation, and during processing, the processing condition can be observed through the observation plate 174, during the clearance, can take off dismantling bolt 176, handheld cover 171 and handheld pole 172 can take off clearance frame 173, can be convenient for clear up the operation.

The technical solutions of the present invention or similar technical solutions designed by those skilled in the art based on the teachings of the technical solutions of the present invention are all within the scope of the present invention.

Claims (10)

1. The novel sealed plastic machine for floor processing is characterized by comprising supporting legs (1), a machine case (2), a grinding motor (3), a grinding shaft (4), a grinding wheel (5), a mesh sieve plate (6), an inclined guide plate (7), a preheating pipe (8), an inclined guide plate (9), a plasticizing motor (10), a plasticizing stirring shaft (11), spiral blades (12), a plasticizing coil (13), a guide hopper (14), a dustproof impurity filtering guide plate structure (15), a movable temporary storage collection transfer box structure (16) and a detachable observation cleaning frame structure (17), wherein the supporting legs (1) are respectively connected to the four corners of the bottom of the machine case (2) through longitudinal bolts; the transverse right end of the crushing motor (3) is connected to the left upper side of the case (2) through a bolt; the transverse left end coupler of the crushing shaft (4) is connected to the right end of the output shaft of the crushing motor (3); the outer wall of the crushing shaft (4) is sequentially keyed with crushing wheels (5) from left to right; the mesh sieve plate (6) is transversely screwed on the upper side in the case (2) and is positioned at the lower part of the crushing wheel (5); the left upper end of the inclined guide plate (7) is connected to the left upper wall of the inside of the case (2) through a bolt and is positioned at the lower part of the mesh sieve plate (6); the lower surface of the inclined guide plate (7) is sequentially connected with a preheating pipe (8) by screws from left to right; the right upper end of the inclined guide plate (9) is bolted to the middle position of the right wall in the case (2) and is positioned at the lower part of the inclined guide plate (7); the transverse right end of the plasticizing motor (10) is connected to the left lower side of the case (2) through a bolt; the transverse left end coupler of the plasticizing stirring shaft (11) is connected to the right end of an output shaft of the plasticizing motor (10); the outer wall of the plasticizing stirring shaft (11) is welded with a spiral blade (12); the plasticizing coil (13) is transversely bolted at the outlet at the left side of the bottom of the case (2); the flow guide hopper (14) is connected to the right outlet of the bottom of the case (2) through a bolt; the dustproof impurity filtering guide plate structure (15) is connected with the case (2); the movable temporary storage collection transfer box structure (16) is connected with the supporting legs (1); the detachable observation and cleaning frame structure (17) is connected with the case (2); the dustproof impurity filtering guide plate structure (15) comprises a dustproof cover (151), a leading-in hopper (152), a connecting seat (153), a movable plate (154), a impurity filtering net (155) and an impurity collecting bag (156), wherein the dustproof cover (151) is buckled at the upper end of the leading-in hopper (152); the upper sides of the left wall and the right wall inside the guide-in hopper (152) are respectively connected with a connecting seat (153) through bolts; the outer ends of the movable plates (154) are respectively connected with the middle position in the connecting seat (153) through bolts and nuts; a sundry filtering net (155) is embedded in the movable plate (154); the impurity collecting bags (156) respectively penetrate through the outlets at the middle positions of the inner sides of the left wall and the right wall of the guide-in hopper (152), and are connected with the outlets at the middle positions of the lower parts of the movable plates (154) through screws.

2. The new sealed plastic machine for floor processing as claimed in claim 1, characterized in that said movable temporary storage collection and transfer box structure (16) comprises universal wheels (161) with brake pads, a collection and storage box (162), an adsorption plate (163), a mounting lining seat (164), a material guiding door (165) and a cleaning bolt (166), said universal wheels (161) with brake pads are respectively bolted at four corners of the bottom of the collection and storage box (162); the right longitudinal screw of the collecting and storing box (162) is connected with an adsorption piece (163); the mounting lining seat (164) is transversely bolted to the front part and the rear part of the left side of the bottom of the collecting and storing box (162); the longitudinal lower end of the guide door (165) is axially connected with the left end between the mounting lining seats (164); the cleaning bolt (166) transversely penetrates through the upper side of the interior of the guide gate (165) and is in threaded connection with the upper left wall of the collecting and storing box (162).

3. The new sealed plastic machine for floor processing as claimed in claim 1, characterized in that said removable observing and cleaning frame structure (17) comprises a hand-held sleeve (171), a hand-held rod (172), a cleaning frame (173), an observing plate (174), a sealing strip (175) and a removing bolt (176), said hand-held sleeve (171) is respectively and longitudinally sleeved on the outer wall of the left end of the hand-held rod (172); the handheld rods (172) are respectively connected to the upper end and the lower end of the cleaning frame (173) through bolts; an observation plate (174) is embedded in the cleaning frame (173); the periphery of the right surface of the cleaning frame (173) is glued with a sealing strip (175); the disassembling bolts (176) are respectively inserted into the circular mounting holes formed in the four corners of the interior of the cleaning frame (173).

4. The machine as claimed in claim 1, characterised in that said dust cap (151) is a circular stainless steel cap.

5. The machine as claimed in claim 1, wherein the lower end of the introduction hopper (152) is screwed to the upper intermediate inlet of the machine casing (2).

6. The machine as claimed in claim 1, characterised in that said mobile plate (154) is made of aluminium alloy.

7. The machine as claimed in claim 1, characterised in that said filtering screen (155) is a rectangular stainless steel screen.

8. The machine as claimed in claim 1, characterised in that said collection bag (156) is a nylon cloth bag.

9. The new type of machine for sealing plastic floors, according to claim 1, characterized in that said container (162) is placed by suction with said support leg (1) placed on the right side by means of suction flaps (163).

10. The new encapsulated plastic machine for flooring operations as set forth in claim 2, characterized in that said suction plate (163) is embodied by a permanent magnet plate.

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