CN201864326U

CN201864326U - Kicking device for high-bottle-cap beverage bottle of beverage filling machine

Info

Publication number: CN201864326U
Application number: CN201020609062XU
Authority: CN
Inventors: 黄宣哲; 孟冬顺
Original assignee: HONGQUAN FOOD PACKAGING (JINAN) CO Ltd
Current assignee: HONGQUAN FOOD PACKAGING (JINAN) CO Ltd
Priority date: 2010-11-16
Filing date: 2010-11-16
Publication date: 2011-06-15
Anticipated expiration: 2020-11-16

Abstract

The utility model discloses a kicking device for a high-bottle-cap beverage bottle of a beverage filling machine, which comprises a soleplate, wherein four supporting plates are respectively installed on the soleplate, and the lower ends of the three supporting plates are respectively hinged with the soleplate; a top plate is installed on a front supporting plate, the top plate is formed by connecting a connecting block, two guide rods, an installing plate, an emitter-installing plate and a receiver-installing plate, the connecting block is connected with a first guide rod, the first guide rod is connected with the installing plate, and the installing plate is connected with a second guide rod; a fist positioning block is arranged on the emitter-installing plate, a second positioning block is arranged on the receiver-installing plate, two positioning blocks are respectively installed on the two guide rods, and two positioning slots are respectively drilled at both ends of the installing plate; two installing slots are drilled on the installing plate, two guide-post holes are respectively arranged at both ends of the installing plate, and the first guide rod is positioned in a first guide-post holes; the second guide rod is positioned in a second guide-post hole; a bottle-kicking device is installed on the soleplate through a guide rail and a guide seat; and a controller is installed on the installing plate, a signal emitter is installed on the emitter-installing plate, and a signal receiver is installed on the receiver-installing plate.

Description

The high bottle cap beverage bottle of Beverage filling machine is played removal apparatus

Technical field

The utility model relates to the high bottle cap beverage bottle of a kind of Beverage filling machine and plays removal apparatus.

Background technology

Present Beverage filling machine is for indivedual bottle caps of its belt conveyor transmission beverage bottle of screwing of as prescribed not; promptly the beverage bottle of main high bottle cap is played and is removed; guarantee to pack the quality of the product that dispatches from the factory; often need to install high bottle cap additional and play removal apparatus at the belt conveyor sidepiece; but existing high bottle cap is played removal apparatus and is lacked necessary outer protection structure, no matter plays removal apparatus and all be exposed to the outside under running condition still is non-working condition; be subject to external influence, service life is shorter.

The utility model content

The purpose of this utility model has provided the high bottle cap beverage bottle of a kind of Beverage filling machine and has played removal apparatus, and it can solve the problem that prior art exists, and it has perfect protection structure, can effectively protect it when playing removal apparatus and be in non-working condition.

The utility model is achieved through the following technical solutions: the high bottle cap beverage bottle of Beverage filling machine is played removal apparatus, comprises base plate, and front carrier plate, two side support plates and rear carrier plate are installed respectively on the base plate, the lower end of rear carrier plate and two side support plates respectively with base plate hinged; Top board is installed on the front carrier plate, top board is connected and composed by contiguous block, first guide rod, adapter plate, projector adapter plate, receptor adapter plate and second guide rod, contiguous block is hinged by the upper end of hinge and front carrier plate, contiguous block is connected with first guide rod, first guide rod and adapter plate flexibly connect, and the adapter plate and second guide rod flexibly connect; The projector adapter plate is provided with first locating piece, the receptor adapter plate is provided with second locating piece, the periphery of first guide rod is installed first locating piece, the periphery of second guide rod is installed second locating piece, the two ends of adapter plate are offered first positioning groove and second positioning groove respectively, first positioning groove cooperates with first locating piece, and second positioning groove cooperates with second locating piece; Offer first mounting groove and second mounting groove of rectangle on the adapter plate respectively perpendicular to the adapter plate inside face, the two ends of adapter plate are respectively equipped with the first guide pillar hole and the second guide pillar hole, the first guide pillar hole communicates with first positioning groove and first mounting groove respectively, and the second guide pillar hole communicates with second positioning groove and second mounting groove respectively; First limiting stopper and first spring are installed in first mounting groove, and an end of first guide rod is positioned at the first guide pillar hole, and first spring is placed in the periphery of first guide rod, and first guide rod is threaded with first limiting stopper; Second spring and second limiting stopper are installed in second mounting groove, and an end of second guide rod is positioned at the second guide pillar hole, and second spring is placed in the periphery of second guide rod, and second guide rod is threaded with second limiting stopper; Two guide rails of parallel installation are installed guide holder on the base plate on the guide rail, and the guide holder bottom is provided with two guide holder orienting lugs, and two guide holder orienting lugs cooperate with two guide rails respectively, install on the guide holder and play bottle; First limiting stopper and second limiting stopper are rectangle; Installation and control device on the adapter plate is installed signal projector on the projector adapter plate, on the receptor adapter plate signal receiver is installed, and signal projector is connected with controller by lead respectively with signal receiver.

For further realizing the purpose of this utility model, can also realize by the following technical solutions: chute is offered in the upper end of front carrier plate, respectively offer a guide groove on two madial walls of chute, slide block is installed in the chute, the both sides of slide block are equipped with orienting lug, two orienting lugs cooperate with two guide grooves respectively, and slide block is hinged by hinge and contiguous block; Nut is installed on the slide block, the leading screw permanent seat is installed on the front carrier plate inwall, on the leading screw permanent seat leading screw is installed, leading screw can rotate relative to the leading screw permanent seat, and leading screw is connected with nut thread, and handwheel is installed after passing nut in the upper end of leading screw.The described bottle of playing is connected and composed by cylinder, push pedal, first three-way solenoid valve and second three-way solenoid valve, on the piston rod of cylinder push pedal is installed, the admission port of cylinder is connected with an air extractor duct of first three-way solenoid valve, the air extractor duct of playing bottle is connected with an air extractor duct of second three-way solenoid valve, and the air supply opening of first three-way solenoid valve and second three-way solenoid valve is connected with source of the gas by pipeline respectively; Cylinder is connected with guide holder.A rod bush is installed in the bottom of guide holder, and the upper end of a rod bush and the bottom-hinged of guide holder are installed pole in the rod bush, installing and locating bolt on the sidewall of a rod bush, and dowel bolt contacts with pole; Install and fix seat on the inwall of side support plate, permanent seat cooperates with pole; Prop up on the rod bush magnetic patch is installed.Parallelly on the sidewall of side support plate be provided with two plate guide rails, plate guide rail inboard is provided with the plate guide groove, and main plate is installed between the two plate guide rails, and the both sides of plate respectively are provided with a plate orienting lug, two plate orienting lugs cooperate with two plate guide grooves, and an end of plate is provided with plug; The parallel two root hole panel guides that are provided with on the sidewall of rear carrier plate, orifice plate guide rail inboard is provided with the orifice plate guide groove, and the main aperture plate is installed between the two orifice plate guide rails, and the both sides of orifice plate respectively are provided with an orifice plate orienting lug, and two orifice plate orienting lugs cooperate with two orifice plate guide grooves respectively; Offer jack on the orifice plate, jack cooperates with plug.

Good effect of the present utility model is: it is equipped with the support plate of protective action; under non-working condition; can and play vitals such as bottle with detector, control setup places in the support plate protection domain; it is protected; can prevent that vitals is subjected to ectocine, thereby can prolong whole service life of playing removal apparatus effectively.It can be folded into the casing of rectangle under non-working condition, convenient transportation is carried, and also can save the space of putting.In addition, the high bottle cap beverage bottle of Beverage filling machine described in the utility model is played removal apparatus and is had more sensitive detector and at a high speed flexible cylinder, and it is higher to detect and play bottle precision, and plays to remove and do not conform to the normal transport that can not influence acceptable product.The utility model also has the advantage of compactness simple for structure, convenient processing and manufacture.

Description of drawings

Fig. 1 is a structural representation of the present utility model, and the high bottle cap beverage bottle of the Beverage filling machine described in the figure is played the mode of operation of removal apparatus for launching; Fig. 2 is that the A of Fig. 1 is to the structure for amplifying scheme drawing; Fig. 3 is the local structure for amplifying scheme drawing of the I of Fig. 1; Fig. 4 is the local structure for amplifying scheme drawing of the III of Fig. 1; Fig. 5 is that the C of Fig. 4 is to the structure for amplifying scheme drawing; Fig. 6 is that the B of Fig. 1 is to the structure for amplifying scheme drawing; Fig. 7 is the local structure for amplifying scheme drawing of the II of Fig. 1; Fig. 8 is that the D of Fig. 7 is to the structure for amplifying scheme drawing; Fig. 9 is the E-E structure for amplifying scheme drawing of Fig. 2; Figure 10 is a structural representation of the present utility model, and it is closure state that the high bottle cap beverage bottle of the Beverage filling machine described in the figure is played removal apparatus; Figure 11 is bottle and the controller bonded assembly structural representation played described in the utility model.

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The specific embodiment

The high bottle cap beverage bottle of Beverage filling machine described in the utility model is played removal apparatus, comprise base plate 6, front carrier plate 20, two side support plates 9 and rear carrier plates 8 are installed respectively on the base plate 6, the lower end of rear carrier plate 8 and two side support plates 9 is hinged with base plate 6 respectively, its articulated manner can be articulated manner such as existing hinge connection, can guarantee that rear carrier plate 8 and two relative respectively base plates 6 of side support plate 9 turn over turnback downwards and are as the criterion; On the front carrier plate 20 top board is installed, top board is connected and composed by contiguous block 13, first guide rod 26, adapter plate 19, projector adapter plate 14, receptor adapter plate 15 and second guide rod 27, contiguous block 13 is hinged with the upper end of front carrier plate 20 by hinge 12, contiguous block 13 is connected with first guide rod 26, first guide rod 26 flexibly connects with adapter plate 19, and the adapter plate 19 and second guide rod 27 flexibly connect; Projector adapter plate 14 is provided with first locating piece 22, and the periphery that receptor adapter plate 15 is provided with second locating piece, 23, the first guide rods 26 is installed the periphery of first locating piece, 22, the second guide rods 27 second locating piece 23 is installed; Projector adapter plate 14 only can rotate relative to first guide rod 26, and receptor adapter plate 15 only can rotate relative to second guide rod 27, and the two ends of adapter plate 19 are offered first positioning groove 24 and second positioning groove 25 respectively; First positioning groove 24 cooperates and can play the role of positioning to projector adapter plate 14 with first locating piece 22, and second positioning groove 25 cooperates and can play the role of positioning to receptor adapter plate 15 with second locating piece 23; As shown in Figures 2 and 3, on adapter plate 19, offer first mounting groove 32 and second mounting groove 33 of rectangle respectively perpendicular to adapter plate 19 inside faces, the two ends of adapter plate 19 are respectively equipped with the first guide pillar hole 34 and the second guide pillar hole 35, the first guide pillar hole 34 communicates with first positioning groove 24 and first mounting groove 32 respectively, and the second guide pillar hole 35 communicates with second positioning groove 25 and second mounting groove 33 respectively; The end that first limiting stopper 28 and first spring, 30, the first guide rods 26 are installed in first mounting groove 32 is positioned at the periphery that the first guide pillar hole, 34, the first springs 30 are placed in first guide rod 26, and first guide rod 26 is threaded with first limiting stopper 28; The end that second spring 31 and second limiting stopper, 29, the second guide rods 27 are installed in second mounting groove 33 is positioned at the periphery that the second guide pillar hole, 35, the second springs 31 are placed in second guide rod 27, and second guide rod 27 is threaded with second limiting stopper 29; Two guide rails 44 of parallel installation on the base plate 6 are installed guide holder 37 on the guide rail 44, guide holder 37 bottoms are provided with two guide holder orienting lugs, 42, two guide holder orienting lugs 42 and cooperate with two guide rails 44 respectively, install on the guide holder 37 and play bottle 5; First limiting stopper 28 and second limiting stopper 29 are rectangle, can prevent to greatest extent that adapter plate 19 from rotating with respect to first guide rod 26 and second guide rod 27, promptly guarantee adapter plate 19 can be in testing process serve as that axle is put with first guide rod 26 and second guide rod 27, guarantee accuracy of detection; Installation and control device 18 on the adapter plate 19 is installed signal projector 16 on the projector adapter plate 14, signal receiver 17 is installed on the receptor adapter plate 15, and signal projector 16 is connected with controller 18 by lead respectively with signal receiver 17; Because projector adapter plate 14 and receptor adapter plate 15 be allocation accurately, thereby can guarantee signal projector 16 and the accurately corresponding location of signal receiver 17 on it, so that the raising accuracy of detection.Described signal projector 16 and signal receiver 17 can be existing infrared transmitter and receptor, also can be existing laser beam emitting head and laser pick-off detector.For preventing guide holder 37 by extracting out on the guide rail 44, guide rail 44 is provided with base plate limiting stopper 43, on guide holder 37 sidewalls guide holder limiting stopper 48 is set, and guide holder limiting stopper 48 cooperates the end position that limits guide holder 37 with base plate limiting stopper 43.

Under non-working condition, the high bottle cap beverage bottle of described Beverage filling machine is played removal apparatus and is closure state as shown in figure 10, under the closure state, can connect by existing attaching parts between the wantonly two adjacent plates, controller 18, signal projector 16, signal receiver 17 and play bottle 5 and all be positioned at two side support plates 9, rear carrier plate 8, front carrier plate 20 and top board are subjected to ectocine and interference hardly.

During use, earlier rear carrier plate 8, two side support plates 9 are opened, and upset downwards respectively as shown in Figure 1; Again top board is turned over turnback, top board is outwards leant out, projector adapter plate 14 and receptor adapter plate 15 are positioned at the top of Beverage filling machine belt conveyor, and the relative adapter plate 19 of elastic force that projector adapter plate 14 and receptor adapter plate 15 overcome first spring 30 and second spring 31 respectively outwards spurred, when projector adapter plate 14 and receptor adapter plate 15 are pulled out first positioning groove 24 and second positioning groove 25, just can be with projector adapter plate 14 and receptor adapter plate 15 relative adapter plate 19 Rotate 180 degree, after cancelling above-mentioned pulling force, first spring 30 and second spring, 31 drive projector adapter plates 14 and receptor adapter plate 15 reset, guarantee that signal projector 16 and signal receiver 17 are positioned at the both sides of belt conveyor, can detect the nonconformity beverage bottle on the belt conveyor; Then, guide holder 37 is extracted out along guide rail 44, made and play bottle 5 and be not subjected to blocking of front carrier plate 20, finish the playing work of removing the nonconformity beverage bottle so that play bottle 5.In the time of fixedly,, also can utilize rear carrier plate 8 and two side support plates 9 the high bottle cap beverage bottle of described Beverage filling machine to be played removal apparatus and directly be positioned on the ground of belt conveyor side as bracing frame by front carrier plate 20 being fixed on the sidewall of belt conveyor.When up-to-standard beverage bottle during,, therefore, play bottle 5 and can not move because its bottle cap can block signal projector 16 and the transmission of 17 light beams of signal receiver through signal projector 16 and signal receiver 17 belows; The beverage bottle that is higher than qualified height when bottle cap is during through signal projector 16 and signal receiver 17 belows, because the beam Propagation between its bottle cap block signal projector 16 and the signal receiver 17, signal projector 16 and signal receiver 17 can be passed to controller 18 with signal, and controller 18 controls are played bottle 5 actions and inferior-quality high lid beverage bottle is played removed.

For ease of adjusting the height of signal projector 16 and signal receiver 17 as required, detect with various types of beverages bottle differing heights, as shown in Figure 1, chute 21 is offered in the upper end of front carrier plate 20, respectively offer a guide groove 2 on two madial walls of chute 21, slide block 10 is installed in the chute 21, the both sides of slide block 10 are equipped with orienting lug 11, two orienting lugs 11 cooperate with two guide grooves 2 respectively, and slide block 10 is hinged by hinge 12 and contiguous block 13; Nut 1 is installed on the slide block 10, leading screw permanent seat 4 is installed on front carrier plate 20 inwalls, leading screw 3 is installed on the leading screw permanent seat 4, leading screw 3 can rotate relative to leading screw permanent seat 4, and leading screw 3 is threaded with nut 1, and the upper end of leading screw 3 is passed nut 1 back handwheel 7 is installed.By rotating handwheel 7, handwheel 7 drives leading screw 3 and rotates, and slide block 10 can be moved up and down along chute 21, thereby adjusts the height of signal projector 16 and signal receiver 17.In addition, as shown in Figure 1, handwheel 7 also can be to 1 position-limiting action of nut, thereby limits the stroke of described top board.

As Fig. 4, Fig. 5 and shown in Figure 11, the described bottle 5 of playing is connected and composed by cylinder 45, push pedal 36, first three-way solenoid valve 59 and second three-way solenoid valve 60, push pedal 36 is installed on the piston rod of cylinder 45, the admission port of cylinder 45 is connected with an air extractor duct of first three-way solenoid valve 59, the air extractor duct of playing bottle 5 is connected with an air extractor duct of second three-way solenoid valve 60, and the air supply opening of first three-way solenoid valve 59 and second three-way solenoid valve 60 is connected with source of the gas 38 by pipeline respectively; Cylinder 45 is connected with guide holder 37.Jointly control by first three-way solenoid valve 59 and second three-way solenoid valve 60 and can shorten the flexible reciprocal time of cylinder 45 piston rods effectively, avoid the normal transport of the up-to-standard beverage bottle of cylinder 45 influences.

For giving cylinder 45 more firm support, as shown in Figure 4 and Figure 5, a rod bush 41 is installed in the bottom of guide holder 37, prop up the upper end of rod bush 41 and the bottom-hinged of guide holder 37, prop up poles 40 are installed in the rod bush 41, installing and locating bolt 47 on the sidewall of rod bush 41, dowel bolt 47 contacts with pole 40, pole 40 connects and composes expansion link with a rod bush 41, dowel bolt 47 can be fixed the length of described expansion link, prevents to relatively move after a pole 40 and rod bush 41 position from determining; Install and fix seat 39 on the inwall of side support plate 9, permanent seat 39 cooperates with pole 40, for described expansion link provides fulcrum; Prop up magnetic patch 46 is installed on the rod bush 41, magnetic patch 46 can conveniently will prop up the bottom that hangs on guide holder 37 after rod bush 41 is packed up.

For rear carrier plate 8 is being fixed in after the turnover downwards with side support plate 9, so that constitute firm stent support cylinder 45, as Fig. 1, Fig. 7 and shown in Figure 8, parallelly on the sidewall of side support plate 9 be provided with two plate guide rails 55, plate guide rail 55 inboards are provided with plate guide groove 56, main plate 50 is installed between the two plate guide rails 55, the both sides of plate 50 respectively are provided with a plate orienting lug 53, two plate orienting lugs 53 cooperate with two plate guide grooves 56 can make plate 50 only can move along plate guide rail 55 straight lines, and an end of plate 50 is provided with plug 51; The parallel two root hole panel guides 57 that are provided with on the sidewall of rear carrier plate 8, orifice plate guide rail 57 inboards are provided with orifice plate guide groove 58, main aperture plate 49 is installed between the two orifice plate guide rails 57, the both sides of orifice plate 49 respectively are provided with an orifice plate orienting lug 54, two orifice plate orienting lugs 54 cooperate with two orifice plate guide grooves 58 respectively can make orifice plate 49 only can move along orifice plate guide rail 57 straight lines, offer jack 52 on the orifice plate 49, jack 52 cooperates with plug 51.

The technical solution of the utility model is not restricted in the scope of embodiment described in the utility model.The utility model not technology contents of detailed description is known technology.

Claims

1. the high bottle cap beverage bottle of Beverage filling machine is played removal apparatus, it is characterized in that: comprise base plate (6), front carrier plate (20), two side support plates (9) and rear carrier plate (8) are installed respectively on the base plate (6), and the lower end of rear carrier plate (8) and two side support plates (9) is hinged with base plate (6) respectively; Front carrier plate (20) is gone up top board is installed, top board is connected and composed by contiguous block (13), first guide rod (26), adapter plate (19), projector adapter plate (14), receptor adapter plate (15) and second guide rod (27), contiguous block (13) is hinged with the upper end of front carrier plate (20) by hinge (12), contiguous block (13) is connected with first guide rod (26), first guide rod (26) flexibly connects with adapter plate (19), and adapter plate (19) flexibly connects with second guide rod (27); Projector adapter plate (14) is provided with first locating piece (22), receptor adapter plate (15) is provided with second locating piece (23), the periphery of first guide rod (26) is installed first locating piece (22), the periphery of second guide rod (27) is installed second locating piece (23), the two ends of adapter plate (19) are offered first positioning groove (24) and second positioning groove (25) respectively, first positioning groove (24) cooperates with first locating piece (22), and second positioning groove (25) cooperates with second locating piece (23); Adapter plate (19) is gone up first mounting groove (32) and second mounting groove (33) of offering rectangle perpendicular to adapter plate (19) inside face respectively, the two ends of adapter plate (19) are respectively equipped with the first guide pillar hole (34) and the second guide pillar hole (35), the first guide pillar hole (34) communicates with first positioning groove (24) and first mounting groove (32) respectively, and the second guide pillar hole (35) communicates with second positioning groove (25) and second mounting groove (33) respectively; First limiting stopper (28) and first spring (30) are installed in first mounting groove (32), one end of first guide rod (26) is positioned at the first guide pillar hole (34), first spring (30) is placed in the periphery of first guide rod (26), and first guide rod (26) is threaded with first limiting stopper (28); Second spring (31) and second limiting stopper (29) are installed in second mounting groove (33), one end of second guide rod (27) is positioned at the second guide pillar hole (35), second spring (31) is placed in the periphery of second guide rod (27), and second guide rod (27) is threaded with second limiting stopper (29); Base plate (6) is gone up two guide rails of parallel installation (44), guide rail (44) is gone up guide holder (37) is installed, guide holder (37) bottom is provided with two guide holder orienting lugs (42), two guide holder orienting lugs (42) cooperate with two guide rails (44) respectively, and guide holder (37) is gone up to install and played bottle (5); First limiting stopper (28) and second limiting stopper (29) are rectangle; Adapter plate (19) is gone up installation and control device (18), projector adapter plate (14) is gone up signal projector (16) is installed, receptor adapter plate (15) is gone up signal receiver (17) is installed, and signal projector (16) is connected with controller (18) by lead respectively with signal receiver (17).

2. the high bottle cap beverage bottle of Beverage filling machine according to claim 1 is played removal apparatus, it is characterized in that: chute (21) is offered in the upper end of front carrier plate (20), respectively offer a guide groove (2) on two madial walls of chute (21), slide block (10) is installed in the chute (21), the both sides of slide block (10) are equipped with orienting lug (11), two orienting lugs (11) cooperate with two guide grooves (2) respectively, and slide block (10) is hinged by hinge (12) and contiguous block (13); Slide block (10) is gone up nut (1) is installed, leading screw permanent seat (4) is installed on front carrier plate (20) inwall, leading screw permanent seat (4) is gone up leading screw (3) is installed, leading screw (3) can rotate relative to leading screw permanent seat (4), leading screw (3) is threaded with nut (1), and the upper end of leading screw (3) is passed nut (1) back handwheel (7) is installed.

3. the high bottle cap beverage bottle of Beverage filling machine according to claim 1 is played removal apparatus, it is characterized in that: the described bottle (5) of playing is by cylinder (45), push pedal (36), first three-way solenoid valve (59) and second three-way solenoid valve (60) connect and compose, push pedal (36) is installed on the piston rod of cylinder (45), the admission port of cylinder (45) is connected with an air extractor duct of first three-way solenoid valve (59), the air extractor duct of playing bottle (5) is connected with an air extractor duct of second three-way solenoid valve (60), and the air supply opening of first three-way solenoid valve (59) and second three-way solenoid valve (60) is connected with source of the gas (38) by pipeline respectively; Cylinder (45) is connected with guide holder (37).

4. the high bottle cap beverage bottle of Beverage filling machine according to claim 1 is played removal apparatus, it is characterized in that: a rod bush (41) is installed in the bottom of guide holder (37), prop up the upper end of rod bush (41) and the bottom-hinged of guide holder (37), prop up pole (40) is installed in the rod bush (41), installing and locating bolt (47) on the sidewall of rod bush (41), dowel bolt (47) contacts with pole (40); Install and fix seat (39) on the inwall of side support plate (9), permanent seat (39) cooperates with pole (40); Prop up rod bush (41) and go up installation magnetic patch (46).

5. the high bottle cap beverage bottle of Beverage filling machine according to claim 1 is played removal apparatus, it is characterized in that: the parallel two plate guide rails (55) that are provided with on the sidewall of side support plate (9), plate guide rail (55) inboard is provided with plate guide groove (56), main plate (50) is installed between the two plate guide rails (55), the both sides of plate (50) respectively are provided with a plate orienting lug (53), two plate orienting lugs (53) cooperate with two plate guide grooves (56), and an end of plate (50) is provided with plug (51); The parallel two root hole panel guides (57) that are provided with on the sidewall of rear carrier plate (8), orifice plate guide rail (57) inboard is provided with orifice plate guide groove (58), main aperture plate (49) is installed between the two orifice plate guide rails (57), the both sides of orifice plate (49) respectively are provided with an orifice plate orienting lug (54), and two orifice plate orienting lugs (54) cooperate with two orifice plate guide grooves (58) respectively; Offer jack (52) on the orifice plate (49), jack (52) cooperates with plug (51).