CN215843182U

CN215843182U - Crushing grinding machine with quantitative feeding function for plastic particle processing

Info

Publication number: CN215843182U
Application number: CN202121478918.9U
Authority: CN
Inventors: 陈辉武; 陈忠武; 林昱希; 王雪增
Original assignee: Fujian Yiqi New Material Co ltd
Current assignee: Fujian Yiqi New Material Co ltd
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2022-02-18
Anticipated expiration: 2031-06-30

Abstract

The utility model discloses a crushing and grinding machine with a quantitative feeding function for plastic particle processing, which belongs to the technical field of plastic particle processing and comprises a processing box, wherein two symmetrical feeding holes are formed in the top end of the processing box, feeding hoppers are fixed at the feeding holes, connecting shafts are rotatably connected in the feeding hoppers, quantitative discs are fixedly connected to the outer sides of the connecting shafts, the quantitative discs are movably connected in the corresponding feeding hoppers, rotating cavities matched with the corresponding quantitative discs are formed in the feeding hoppers, a plurality of arc-shaped grooves distributed in an annular array are formed in the quantitative discs, opposite ends of the two connecting shafts extend to the outer sides of the corresponding feeding hoppers and are fixedly connected with first bevel gears, and second bevel gears are meshed between the first bevel gears; through the arrangement of the reciprocating knocking mechanism, the two knocking balls can knock the screen in a reciprocating manner, the screening efficiency is greatly improved, and the quality of the crushed and ground materials is effectively guaranteed.

Description

Crushing grinding machine with quantitative feeding function for plastic particle processing

Technical Field

The utility model belongs to the technical field of plastic particle processing, and particularly relates to a crushing and grinding machine with a quantitative feeding function for plastic particle processing.

Background

Plastic granules are raw materials for storage, transportation and processing and molding of plastics in the form of semi-finished products. Plastics are a kind of high molecular material, and can be used to prepare ethylene, propylene, vinyl chloride, styrene, etc. by using petroleum as raw material, and the molecules of these substances can react with each other under a certain condition to produce compounds with very large molecular weight, i.e. high molecules.

At present, when carrying out broken grinding to plastic granules, need use broken grinding machine equipment, but present broken grinding machine equipment can't effectively screen the material after smashing the grinding, leads to smashing the material quality greatly reduced who grinds, and inconvenient dismantles the washing to the screen cloth simultaneously, has certain drawback in using.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a crushing and grinding machine with quantitative feeding function for processing plastic particles, which solves the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a crushing and grinding machine with a quantitative feeding function for plastic particle processing comprises a processing box, wherein two symmetrical feeding holes are formed in the top end of the processing box, feeding hoppers are fixed at the feeding holes and are rotatably connected with connecting shafts, quantitative discs are fixedly connected to the outer sides of the connecting shafts and are movably connected into the corresponding feeding hoppers, rotating cavities matched with the corresponding quantitative discs are formed in the feeding hoppers, a plurality of arc-shaped grooves distributed in an annular array are formed in the quantitative discs, opposite ends of the two connecting shafts extend to the outer sides of the corresponding feeding hoppers and are fixedly connected with bevel gears I, bevel gears II are connected between the two bevel gears I in a meshing manner, a supporting plate with an n-shaped vertical section is fixed at the top end of the processing box, a motor is fixed at the top end of the supporting plate, a first discharging hole is formed in one side wall of the processing box, a second discharging hole is formed in the other side wall of the processing box, be fixed with into hopper on the interior roof of processing case, the bottom mounting of going into hopper has and is conical crushing fill, swing joint has the toper crushing dish in the crushing fill, the outside of toper crushing dish is fixed with a plurality of crushing teeth, the below of toper crushing dish is equipped with rotates two symmetrical grinding rollers of connection in the processing case, the below of two grinding rollers is equipped with the screen cloth of swing joint in the processing case, the one end of screen cloth is fixed with the cutting, be connected with dismouting mechanism between screen cloth and the processing case, the below of screen cloth is equipped with the reciprocal knocking mechanism of installing in the processing case.

As a preferred embodiment, a material baffle fixed on one side wall of the processing box is arranged at one position of the discharge port, an output shaft of the motor penetrates through the supporting plate and is connected with an installation shaft hole of the bevel gear II, the output shaft of the motor also penetrates into the processing box and is connected with the top end of the conical crushing disc, a slot matched with the inserting strip is formed in the inner wall of one side of the processing box, and a socket convenient for inserting the screen into the processing box is formed in the other side wall of the processing box.

As a preferred embodiment, one end of the grinding roller extends to the outer side of the processing box and is fixedly connected with a driven gear, the two driven gears are meshed with each other, one end of the grinding roller close to the front extends to the outer side of the corresponding driven gear and is fixedly connected with a first chain wheel, one end of the connecting shaft at the left end extends to the outer side of the corresponding feeding hopper and is fixedly connected with a second chain wheel, and a chain is in transmission connection between the second chain wheel and the first chain wheel.

As a preferred embodiment, the reciprocating knocking mechanism comprises two symmetrical fixed outer cylinders fixed on the inclined plane of the inner wall of the processing box, a movable block is connected in each fixed outer cylinder in a sliding manner, a movable inner rod is fixed at the top end of each movable block, knocking balls are fixed at the top ends of the movable inner rods, the outer sides of the knocking balls are abutted against the bottom of the screen, springs I are connected between the bottom ends of the movable blocks and the corresponding inner bottom walls of the fixed outer cylinders, sliding blocks are fixed on two side walls of each movable block, and sliding grooves matched with the sliding blocks are formed in the inner walls of two sides of each fixed outer cylinder.

As a preferred embodiment, a plurality of teeth are fixed on a side wall of the movable inner rod at equal intervals, the movable inner rod is connected with a sector gear through meshing of the teeth, a transmission shaft is fixedly connected in an installation shaft hole of the sector gear and is rotatably connected in a processing box, one end of the transmission shaft extends to the outer side of the processing box and is fixedly connected with a first belt pulley, one end of a connecting shaft at the right end extends to the outer side of a corresponding feeding hopper and is fixedly connected with a second belt pulley, and a transmission belt is connected between the second belt pulley and the first two belt pulleys.

As a preferred embodiment, dismouting mechanism is including fixing the mounting panel in screen cloth one end, and it is connected with the pivot to rotate on the lateral wall that deviates from the screen cloth on the mounting panel, and the outside rigid coupling of pivot has the carousel, and the surface edge of carousel articulates there are two symmetrical push-and-pull rods, and the other end of push-and-pull rod all articulates there is the movable plate, and the equal sliding connection of movable plate is on the mounting panel.

As a preferred embodiment, one end of the movable plate is fixed with a sliding seat, the mounting plate is provided with sliding grooves matched with the sliding seats, sliding rods are fixed in the sliding grooves, the sliding seats are sleeved outside the corresponding sliding rods in a sliding manner, a second spring is connected between one end of each sliding seat and the end of the corresponding sliding groove, the second spring is movably sleeved outside the corresponding sliding rod, the two sides of the mounting plate are provided with fixing plates fixed on one side wall of the processing box, two symmetrical inserting columns are fixed on one side wall of each of the two opposite moving plates, and the fixing plates are provided with inserting holes matched with the inserting columns.

Compared with the prior art, the crushing grinder with the quantitative feeding function for processing the plastic particles, provided by the utility model, at least has the following beneficial effects:

(1) through the arrangement of the reciprocating knocking mechanism, the two knocking balls can knock the screen in a reciprocating manner, so that the screening efficiency is greatly improved, and the quality of the crushed and ground materials is effectively ensured;

(2) the screen can be quickly and conveniently disassembled from the processing box through the arrangement of the disassembling and assembling mechanism, the structure design is simple, the disassembling and assembling are convenient, and convenience is brought to people when the screen is disassembled and cleaned;

(3) through the setting of quantitative dish, can carry out quantitative feeding to the plastic granules material, avoid the material once to get into too much, and lead to blocking phenomenon to take place.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic sectional side view of the present invention;

FIG. 3 is a schematic sectional bottom view of the present invention;

FIG. 4 is a schematic view showing the expanded structure of the quantitative plate and the rotary chamber according to the present invention;

FIG. 5 is an enlarged schematic view of the structure of the present invention at A;

FIG. 6 is an enlarged schematic view of the present invention at B.

In the figure: 1. a processing box; 2. a feed hopper; 21. a connecting shaft; 22. a quantitative disc; 23. a first bevel gear; 24. a second bevel gear; 25. a motor; 3. a first discharge hole; 31. a striker plate; 4. a grinding roller; 41. a driven gear; 42. a chain wheel I; 43. a second chain wheel; 44. a chain; 5. feeding into a hopper; 51. a crushing hopper; 52. a conical grating disk; 6. screening a screen; 61. cutting; 7. a reciprocating knocking mechanism; 701. fixing the outer cylinder; 702. a movable block; 703. a movable inner rod; 704. knocking and hitting the ball; 705. a first spring; 706. a slider; 707. teeth; 708. a sector gear; 709. a drive shaft; 710. a first belt pulley; 711. a second belt pulley; 712. a transmission belt; 8. a disassembly and assembly mechanism; 801. mounting a plate; 802. a rotating shaft; 803. a turntable; 804. a push-pull rod; 805. moving the plate; 806. a sliding seat; 807. a slide bar; 808. a second spring; 809. a fixing plate; 810. and (5) inserting the column.

Detailed Description

The present invention will be further described with reference to the following examples.

The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model. The conditions in the embodiments can be further adjusted according to specific conditions, and simple modifications of the method of the present invention based on the concept of the present invention are within the scope of the claimed invention.

Referring to fig. 1-6, the utility model provides a crushing grinder for plastic particle processing with quantitative feeding function, comprising a processing box 1, a feeding hopper 2, a connecting shaft 21, a quantitative disc 22, a bevel gear 23, a bevel gear 24, a motor 25, a discharging port 3, a material baffle 31, a grinding roller 4, a driven gear 41, a sprocket 42, a sprocket 43, a chain 44, a feeding hopper 5, a crushing hopper 51, a conical crushing disc 52, a screen 6, an inserting bar 61, a reciprocating knocking mechanism 7, a fixed outer cylinder 701, a movable block 702, a movable inner rod 703, a knocking ball 704, a spring 705, a sliding block 706, teeth 707, a sector gear 708, a transmission shaft 709, a belt pulley 710, a belt pulley 711, a transmission belt 712, a mechanism 8, a mounting plate 801, a rotating shaft 802, a rotating disc 803, a push-pull rod 804, a movable plate 805, a sliding seat 806, a sliding rod 807, a spring 808, a fixed plate 809 and an inserting column 810, the top end of the processing box 1 is provided with two symmetrical feeding ports, the feeding ports are fixed with feeding hoppers 2, the feeding hoppers 2 are connected with connecting shafts 21 in a rotating way, the outer sides of the connecting shafts 21 are fixedly connected with quantitative trays 22, the quantitative trays 22 are movably connected in the corresponding feeding hoppers 2, the feeding hoppers 2 are internally provided with rotating cavities matched with the corresponding quantitative trays 22, the quantitative trays 22 are respectively provided with a plurality of arc-shaped grooves which are distributed in an annular array way, the opposite ends of the two connecting shafts 21 extend to the outer sides of the corresponding feeding hoppers 2 and are fixedly connected with bevel gears 23, a bevel gear II 24 is meshed and connected between the two bevel gears 23, the top end of the processing box 1 is fixed with a supporting plate with an n-shaped vertical section, the top end of the supporting plate is fixed with a motor 25, one side wall of the processing box 1 is provided with a discharging port I3, the other side wall is provided with a discharging port II, the inner top wall of the processing box 1 is fixed with a feeding hopper 5, go into hopper 5's bottom mounting to be conical crushing hopper 51, swing joint has conical crushing dish 52 in crushing hopper 51, conical crushing dish 52's the outside is fixed with a plurality of crushing teeth, conical crushing dish 52's below is equipped with rotates two symmetrical grinding roller 4 of connection in processing box 1, two grinding roller 4's below is equipped with swing joint screen cloth 6 in processing box 1, screen cloth 6's one end is fixed with cutting 61, the setting of cutting 61, make screen cloth 6 firm more install in processing box 1, rotate through conical crushing dish 52, its a plurality of crushing teeth can be broken the material that enters into in the crushing hopper 51, the crushing effect is good, motor 25's rotation need not too fast, normal speed can.

Discharge gate 3 department is equipped with the striker plate 31 of fixing on processing case 1 lateral wall, the output shaft of motor 25 runs through the backup pad, and link to each other with bevel gear two 24's installation shaft hole, the output shaft of motor 25 still runs through to processing case 1 in, and link to each other with the top of toper crushing disc 52, set up on one side inner wall of processing case 1 with cutting 61 matched with slot, set up on another lateral wall of processing case 1 and be convenient for screen cloth 6 insert the inside socket of processing case 1, screen cloth 6 can be followed and extracted in the socket, the socket all is the slope setting with the slot.

The one end of grinding roller 4 all extends to the outside of processing case 1, and the rigid coupling has driven gear 41, mesh between two driven

gear

41, 4 one end of grinding roller by the front still extends to the driven gear 41 outside that corresponds, and the rigid coupling has sprocket 42, the one end of the connecting axle 21 of left end extends to the outside of corresponding feeder hopper 2, and the rigid coupling has sprocket two 43, the transmission is connected with chain 44 between sprocket two 43 and sprocket 42, sprocket two 43 clockwise, and drive sprocket 42 through chain 44 and carry out clockwise rotation, then grinding roller 4 by the front carries out clockwise rotation, and because mesh between two driven gear 41, then two grinding roller 4 opposite direction rotate, and grind preliminary broken material.

A reciprocating knocking mechanism 7 arranged in the processing box 1 is arranged below the screen 6, the reciprocating knocking mechanism 7 comprises two symmetrical fixed outer cylinders 701 fixed on the inclined plane of the inner bottom wall of the processing box 1, movable blocks 702 are connected in the fixed outer cylinders 701 in a sliding manner, movable inner rods 703 are fixed at the top ends of the movable blocks 702, knocking balls 704 are fixed at the top ends of the movable inner rods 703, the outer sides of the knocking balls 704 are abutted against the bottom of the screen 6, springs 705 are connected between the bottom ends of the movable blocks 702 and the inner bottom wall of the corresponding fixed outer cylinders 701, sliding blocks 706 are fixed on two side walls of the movable blocks 702, sliding grooves matched with the sliding blocks 706 are formed in the inner walls of the two sides of the fixed outer cylinders 701, a plurality of teeth 707 are fixed on one side wall of the movable inner rods at equal intervals, fan-shaped gears 708 are connected to the movable inner rods 703 through meshing of the teeth, and transmission shafts 709 are fixedly connected in mounting holes of the fan-shaped gears 708, the transmission shafts 709 are rotatably connected in the processing box 1, one ends of the transmission shafts 709 extend to the outer side of the processing box 1 and are fixedly connected with a first belt pulley 710, one end of the connecting shaft 21 at the right end extends to the outer side of the corresponding feed hopper 2 and is fixedly connected with a second belt pulley 711, a transmission belt 712 is connected between the second belt pulley 711 and the first two belt pulleys 710 in a transmission manner, and the rotation of the transmission belt 712 does not influence the discharge of the screened qualified materials from the first discharge port 3.

A dismounting mechanism 8 is connected between the screen 6 and the processing box 1, the dismounting mechanism 8 comprises a mounting plate 801 fixed at one end of the screen 6, a rotating shaft 802 is rotatably connected on one side wall of the mounting plate 801 departing from the screen 6, a rotating disc 803 is fixedly connected at the outer side of the rotating shaft 802, two symmetrical push-pull rods 804 are hinged at the edge of the outer surface of the rotating disc 803, moving plates 805 are hinged at the other ends of the push-pull rods 804, the moving plates 805 are all slidably connected on the mounting plate 801, sliding seats 806 are all fixed at one end of the moving plates 805, sliding grooves matched with the sliding seats 806 are all arranged on the mounting plate 801, sliding rods 807 are all fixed in the sliding grooves, sliding seats 806 are all slidably sleeved at the outer sides of corresponding sliding rods 807, two springs 808 are connected between one ends of the sliding seats 806 and the corresponding ends of the sliding grooves, the two springs 808 are all movably sleeved at the outer sides of the corresponding sliding rods 807, fixing plates 809 fixed on one side wall of the processing box 1 are arranged at two sides of the mounting plate 801, two symmetrical inserting columns 810 are fixed on the opposite side walls of the two moving plates 805, inserting holes matched with the inserting columns 810 are formed in the fixing plates 809, one side wall of the mounting plate 801 is movably connected with one side wall of the processing box 1, and the distance between the two fixing plates 809 is just equal to the length of the mounting plate 801.

The working principle is as follows: when the quantitative plastic particle mill is used, plastic particle materials are poured into the two feed hoppers 2 respectively, the bevel gears 24 are driven to rotate anticlockwise through the starting motors 25 and are driven to rotate by the bevel gears 23, the connecting shafts 21 connected with the bevel gears 23 rotate and drive the corresponding quantitative trays 22 to rotate, the plastic particles can be quantitatively fed by the corresponding arc grooves on the quantitative trays 22, the plastic particles quantitatively enter the feed hopper 5, and simultaneously, the plastic particle materials can be preliminarily crushed by the rotation of the conical crushing trays 52 and the matching of the plurality of crushing teeth and the arrangement of the crushing hoppers 51, the preliminarily crushed materials can fall between the two grinding rollers 4, the first chain wheels 42 and the second chain wheels 43 are in transmission connection through the chains 44, and the two driven gears 41 are meshed with each other, so that the two grinding rollers 4 rotate, the materials after the primary crushing are ground again, the ground materials fall on the screen 6, moreover, two belt pulleys I710 are in transmission connection with a belt pulley II 711 through a transmission belt 712, then two transmission shafts 709 simultaneously rotate and drive corresponding sector gears 708 to rotate clockwise, because the movable inner rods 703 are engaged with the corresponding sector gears 708 through a plurality of teeth 707, then when the sector gears 708 rotate, the corresponding movable inner rods 703 can move downwards in the corresponding fixed outer cylinders 701 through the movable blocks 702, so that the springs I705 at the bottom are compressed, when the sector gears 708 are not engaged with the teeth 707, the knocking balls 704 can knock the screen 6 to-and-fro under the reverse action of the springs I705, so that the materials on the screen 6 are screened, the screening efficiency is improved, and the quality of the ground materials is greatly improved, when the screen 6 needs to be detached and replaced, the rotating shaft 802 is twisted, so that the rotating disc 803 rotates, the two hinged push-pull rods 804 are driven to move, the moving plate 805 hinged to the other end of each push-pull rod 804 can move relatively, the sliding seats 806 can compress the two springs 808 on the outer sides of the corresponding sliding rods 807, the two inserting columns 810 correspondingly connected to the moving plate 805 can be separated from the corresponding inserting holes, the screen 6 can be conveniently pulled out of the inserting holes in the processing box 1, and the screen 6 can be conveniently cleaned.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a crushing mill of plastic granules processing usefulness with ration feeding function, includes processing case (1), its characterized in that: the top of processing case (1) is seted up two symmetrical feed inlets, feed inlet department all is fixed with feeder hopper (2), all rotate in feeder hopper (2) and be connected with connecting axle (21), the equal rigid coupling in the outside of connecting axle (21) has quantitative dish (22), quantitative dish (22) all swing joint is in corresponding feeder hopper (2), all set up in feeder hopper (2) with corresponding quantitative dish (22) matched with rotation chamber, the quantitative dish (22) is last all to be seted up a plurality of arc recesses that are annular array and arrange, the opposite end of two connecting axles (21) all extends to the corresponding feeder hopper (2) outside, and the rigid coupling has bevel gear (23), meshing connection has bevel gear two (24) between two bevel gear (23), the top of processing case (1) is fixed with the backup pad that the vertical cross-section is n type, the top of backup pad is fixed with motor (25), the utility model provides a processing box, including processing box (1), the interior roof of processing box (1), the bottom mounting who goes into hopper (5) has the toper smash fill (51), swing joint has toper crushing dish (52) in smashing fill (51), the outside of toper crushing dish (52) is fixed with a plurality of crushing teeth, the below of toper crushing dish (52) is equipped with rotates two symmetrical grinding roller (4) of connection in processing box (1), the below of two grinding roller (4) is equipped with swing joint screen cloth (6) in processing box (1), the one end of screen cloth (6) is fixed with cutting (61), be connected with between screen cloth (6) and processing box (1) dismouting mechanism (8), the below of screen cloth (6) is equipped with reciprocal knocking mechanism (7) of installing in processing box (1).

2. The crushing mill for plastic particle processing with quantitative feeding function as claimed in claim 1, wherein: discharge gate (3) department is equipped with striker plate (31) of fixing on processing case (1) a lateral wall, the output shaft of motor (25) runs through the backup pad, and link to each other with the installation shaft hole of bevel gear two (24), the output shaft of motor (25) still runs through to processing case (1) in, and link to each other with the top of toper crushing dish (52), offer on the one side inner wall of processing case (1) with cutting (61) matched with slot, offer on another lateral wall of processing case (1) and be convenient for screen cloth (6) insert the inside socket of processing case (1).

3. The crushing mill for plastic particle processing with quantitative feeding function as claimed in claim 1, wherein: the one end of grinding roller (4) all extends to the outside of processing case (1) to the rigid coupling has driven gear (41), mesh mutually between two driven gear (41), grinding roller (4) one end by the front still extends to the driven gear (41) outside that corresponds, and the rigid coupling has sprocket (42), the one end of the connecting axle (21) of left end extends to the outside of corresponding feeder hopper (2), and the rigid coupling has sprocket two (43), transmission connection has chain (44) between sprocket two (43) and sprocket (42).

4. The crushing mill for plastic particle processing with quantitative feeding function as claimed in claim 1, wherein: reciprocal strike mechanism (7) are including fixing two symmetrical fixed urceolus (701) on the bottom wall inclined plane in processing case (1), equal sliding connection has movable block (702) in fixed urceolus (701), the top of movable block (702) all is fixed with movable interior pole (703), the top of activity interior pole (703) all is fixed with strikes ball (704), the outside of striking ball (704) all contradicts with the bottom of screen cloth (6), the bottom of movable block (702) all is connected with spring one (705) with between the bottom wall in the fixed urceolus (701) that corresponds, all be fixed with slider (706) on the both sides wall of movable block (702), all set up on the both sides inner wall of fixed urceolus (701) with slider (706) matched with spout.

5. The crushing mill for plastic particle processing with quantitative feeding function as claimed in claim 4, wherein: equal distance is fixed with a plurality of teeth (707) on the lateral wall of pole (703) in the activity, pole (703) in the activity all is connected with sector gear (708) through a plurality of tooth meshing, equal rigid coupling has transmission shaft (709) in the mounting shaft hole of sector gear (708), transmission shaft (709) all rotates to be connected in processing case (1), the one end of transmission shaft (709) all extends to the outside of processing case (1), and the rigid coupling has belt pulley (710), connecting axle (21) one end of right-hand member extends to the outside of corresponding feeder hopper (2), and the rigid coupling has belt pulley two (711), the transmission is connected with drive belt (712) between belt pulley two (711) and two belt pulley (710).

6. The crushing mill for plastic particle processing with quantitative feeding function as claimed in claim 1, wherein: dismouting mechanism (8) are including fixing mounting panel (801) in screen cloth (6) one end, rotate on the lateral wall that deviates from screen cloth (6) on mounting panel (801) and be connected with pivot (802), and the outside rigid coupling of pivot (802) has carousel (803), and the surface edge of carousel (803) articulates there are two symmetrical push-and-pull rods (804), and the other end of push-and-pull rod (804) all articulates there is movable plate (805), and equal sliding connection of movable plate (805) is on mounting panel (801).

7. The crushing mill for plastic particle processing with quantitative feeding function as claimed in claim 6, wherein: one end of the moving plate (805) is fixed with a sliding seat (806), a sliding groove matched with the sliding seat (806) is formed in the mounting plate (801), a sliding rod (807) is fixed in the sliding groove, the sliding seat (806) is sleeved on the outer side of the corresponding sliding rod (807) in a sliding mode, a second spring (808) is connected between one end of the sliding seat (806) and the end portion of the corresponding sliding groove, the second spring (808) is movably sleeved on the outer side of the corresponding sliding rod (807) in a sliding mode, fixing plates (809) fixed on one side wall of the processing box (1) are arranged on two sides of the mounting plate (801), two symmetrical inserting columns (810) are fixed on one side wall of the two moving plates (805) opposite to each other, and inserting holes matched with the inserting columns (810) are formed in the fixing plates (809).