CN112841239A

CN112841239A - Circulating intelligent shaping production line of flying saucer shrimp food

Info

Publication number: CN112841239A
Application number: CN202110353687.7A
Authority: CN
Inventors: 林坤成; 李屹
Original assignee: Shantou Yuexing Enterprise Co
Current assignee: Shantou Yuexing Enterprise Co
Priority date: 2021-04-01
Filing date: 2021-04-01
Publication date: 2021-05-28

Abstract

The invention provides a circulating intelligent molding production line for flying saucer shrimp food, which comprises: a mounting frame; the two dough cover conveying mechanisms are fixedly arranged on two sides of the mounting rack respectively; the two groups of adsorption transfer mechanisms are symmetrically and fixedly arranged at the top of the mounting frame and are positioned between the two dough cover conveying mechanisms, and the number of the vacuum adsorption transfer mechanisms in each group is two; the two stuffing conveying mechanisms are symmetrically and fixedly arranged in the middle of the top of the mounting rack. The circulating intelligent molding production line for the flying saucer shrimp food, provided by the invention, has the advantages that stuffing can be automatically added to the dough sheets through the arrangement of the dough sheet conveying mechanism, the matching of the vacuum adsorption transfer mechanism, the stuffing conveying mechanism, the paste spraying mechanism, the pressing and punching mechanism, the turnover mechanism, the carrier and the finished product conveying belt, the dough sheets are covered and then pressed and molded to be conveyed to a collection position, the participation of manpower is greatly reduced, the labor cost is reduced, and the food processing efficiency is improved.

Description

Circulating intelligent shaping production line of flying saucer shrimp food

Technical Field

The invention relates to the field of food processing, in particular to a circulating type intelligent molding production line for flying saucer shrimp food.

Background

Food processing refers to grain milling, feed processing, vegetable oil and sugar processing, slaughtering, meat processing, aquatic product processing and food processing activities of vegetables, fruits, nuts and the like which are directly carried out by taking agricultural, forestry, animal husbandry and fishery products as raw materials, and is a type of generalized agricultural product processing industry.

The stuffing is added between the upper wrapper and the lower wrapper to be adhered in the conventional UFO shrimp food, the food is usually made manually in the production process at present, the manual operation efficiency is low, the yield is low, and the consumed manual quantity is high.

Therefore, it is necessary to provide a circulating intelligent molding production line for flying saucer shrimp food to solve the above technical problems.

Disclosure of Invention

The invention provides a circulating intelligent molding production line for UFO shrimp food, which solves the problems that the conventional UFO shrimp food is usually made manually in the production process, the manual operation efficiency is low, the productivity is low, and the labor consumption is high.

In order to solve the technical problem, the circulating intelligent molding production line for the flying saucer shrimp food provided by the invention comprises:

a mounting frame;

the two dough cover conveying mechanisms are fixedly arranged on two sides of the mounting rack respectively;

the two groups of vacuum adsorption transfer mechanisms are symmetrically and fixedly arranged at the top of the mounting frame and are positioned between the two dough cover conveying mechanisms, and the number of each group of vacuum adsorption transfer mechanisms is two;

the two stuffing conveying mechanisms are symmetrically and fixedly arranged in the middle of the top of the mounting rack;

the carrier conveying mechanism is fixedly arranged at the top of the mounting frame and positioned on the front side of the dough sheet conveying mechanism, and a carrier is arranged on the carrier conveying mechanism;

the two paste spraying mechanisms are symmetrically and fixedly arranged at the top of the mounting frame and are positioned on the upper side of the carrier conveying mechanism;

the pressing and punching mechanism is fixedly arranged on one side of the top of the mounting frame;

the turnover mechanism is fixedly arranged at the top of the mounting frame and is positioned on one side of the pressing and punching mechanism;

and the finished product conveying belt is fixedly arranged at the top of the mounting frame and is positioned on one side of the turnover mechanism.

Vacuum adsorption moves and carries mechanism includes the slide rail, sliding connection has first mounting panel on the slide rail, the top fixed mounting of first mounting panel has first cylinder, the output fixed mounting of first cylinder has the second mounting panel, the bottom fixed mounting of second mounting panel has the second cylinder, the one end fixed mounting of second cylinder output shaft has the connecting plate.

The upper fixed mounting of connecting plate has a plurality of trachea, tracheal bottom fixed mounting has the adsorption plate, the bottom of adsorption plate is provided with the sucking disc.

Preferably, the adsorption plate is provided with an adsorption cavity, the adsorption cavity is internally and fixedly provided with a suction head assembly, the suction head assembly comprises an adsorption disc and a gas pipe, the adsorption disc is fixedly connected with the inside of the adsorption cavity, and the adsorption disc is communicated with a plurality of groups of adsorption pipe fittings.

Through setting up the adsorption pipe fitting, evenly distributed is on the sucking disc to can carry out even absorption to the surface of face skin, can not appear a point and adsorb, the too big condition that makes the face skin appear damaged deformation of suction.

Preferably, the adsorption pipe fitting comprises four adsorption branch pipes, the four adsorption branch pipes are communicated with the top of the adsorption branch pipe, and the top end of the adsorption pipe fitting is communicated with a main connection pipe through a branch connection pipe.

Preferably, the bottom end of the gas pipe is fixedly connected with a connecting disc, the top end of the connecting main pipe penetrates through the connecting disc, and the surface of the connecting main pipe is fixedly connected with the inside of the connecting disc.

By connecting the plurality of adsorption pipe fittings with the connecting main pipe, the air flow in the plurality of adsorption pipe fittings can be sucked out by sucking the air flow in the connecting main pipe.

Preferably, the bottom of the adsorption disc is bonded with a first rubber pad.

Through setting up first cushion, make the contact with the face skin softer, reduce the pressure to the face skin.

Preferably, the top intercommunication of gas-supply pipe has the collection conveying subassembly, it includes the U-shaped pipe to collect the conveying subassembly, the centre intercommunication of U-shaped bottom of the pipe has the discharging pipe, the one end fixed mounting of U-shaped pipe has the filter screen, the one end intercommunication of U-shaped pipe has the exhaust tube.

Can filter the flour on the inspiratory face skin through U-shaped pipe cooperation filter screen, and can discharge easy operation through opening the sealed cap on the discharging pipe.

Preferably, the adsorption disc is communicated with a plurality of outer ejection assemblies, each outer ejection assembly comprises a fixed pipe, the inside of each fixed pipe is fixedly connected with an installation cylinder through a fixed rod, a piston block is arranged inside each installation cylinder, and a push rod is fixedly connected to the center of each piston block.

The outer top component is arranged to prevent the dough cover from being adhered to the adsorption disc and not falling off, and the outer top component can be pushed down by the sleeve when the sleeve is difficult to pass.

Preferably, the inside of an installation section of thick bamboo and the upside that is located the piston piece are provided with the elastic component, the bottom fixedly connected with push pedal of push rod, the bottom of push pedal bonds and has the second cushion, the surface of gas-supply pipe is provided with the ring pipe, the top of fixed pipe pass through the blast pipe with the ring pipe intercommunication.

Preferably, the filling conveying mechanism comprises: an installation table; the cutting box is fixedly arranged at the top of the mounting table; the storage barrel is communicated with the top of the cutting box; the discharging assembly is fixedly arranged on one side of the top of the mounting table; the pushing assembly comprises two pushing cylinders, the two pushing cylinders are fixedly mounted at the top of the mounting platform and located on two sides of the cutting box, one end of an output shaft of each pushing cylinder is fixedly connected with a driving plate, one side of each driving plate is fixedly connected with a connecting rod, one end of each connecting rod penetrates through the cutting box and extends to the inside of the cutting box, and one end of each connecting rod located inside the cutting box is fixedly connected with a pushing plate; the cutting cylinder is fixedly arranged on one side of the mounting table, and a toothed plate is fixedly arranged at one end of an output shaft of the cutting cylinder; the cutting roller, the cutting roller rotate connect in between the both sides of cutting incasement wall, the one end of cutting roller just is located the outside one end fixedly connected with gear of cutting incasement, the gear with the pinion rack meshing. The cutting roller is provided with three cutting cavities, the inside of the storage cylinder is provided with a spiral conveying device, the bottom of the storage cylinder is provided with three discharge ports which respectively correspond to the three cutting cavities on the cutting roller, the joint of the three discharge ports at the bottom of the storage cylinder is arranged in an inverted V shape, the discharge assembly comprises a support frame and a stuffing discharging pipe, the support frame is fixedly installed at the top of the mounting table, two sides of the top of the support frame are symmetrically and fixedly provided with stuffing conveying cylinders, the output end of each stuffing conveying cylinder is fixedly provided with a lower push plate, a push arm is fixedly installed on the lower push plate, one side of the stuffing discharging pipe is communicated with one side of the cutting box, a pushing piston is arranged inside the stuffing discharging pipe, and one end of the push arm penetrates through the stuffing discharging pipe and is fixedly connected with the top of the pushing.

Compared with the related technology, the circulating intelligent molding production line for the flying saucer shrimp food provided by the invention has the following beneficial effects:

the invention provides a circulating intelligent molding production line for flying saucer shrimp food, which is characterized in that stuffing can be automatically added to dough through arranging a dough conveying mechanism, a vacuum adsorption transfer mechanism, a stuffing conveying mechanism, a paste spraying mechanism, a pressing and punching mechanism, a turnover mechanism, a carrier and a finished product conveying belt, the dough is covered and then pressed and molded to be conveyed to a collection position, the participation of manpower is greatly reduced, the labor cost is reduced, and the food processing efficiency is improved.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of a circulating intelligent molding production line for food of flying saucer shrimps provided by the invention;

FIG. 2 is a top view of the ensemble shown in FIG. 1;

fig. 3 is a schematic structural view of the vacuum adsorption transfer mechanism shown in fig. 1;

fig. 4 is a side view of the vacuum suction transfer mechanism shown in fig. 1;

fig. 5 is a bottom view of the vacuum suction transfer mechanism shown in fig. 1;

fig. 6 is a schematic structural view of the carrier shown in fig. 1;

FIG. 7 is a schematic structural view of a circulating intelligent molding production line for food of flying saucer shrimps in accordance with a second embodiment of the present invention;

FIG. 8 is an enlarged view of portion A of FIG. 7;

FIG. 9 is a cross-sectional view of the outer roof assembly shown in FIG. 7;

fig. 10 is a bottom view of the adsorption tray shown in fig. 7.

Reference numbers in the figures: 1. mounting rack, 2, dough conveying mechanism, 3, vacuum adsorption transfer mechanism, 31, slide rail, 32, first mounting plate, 33, first cylinder, 34, second mounting plate, 35, second cylinder, 36, connecting plate, 37, adsorption plate, 38, air pipe, 39, suction cup, 4, stuffing conveying mechanism, 5, paste spraying mechanism, 6, pressing and punching mechanism, 7, turnover mechanism, 8, finished product conveying belt, 9, carrier, 10, placing cavity, 11, carrier conveying mechanism, 12, adsorption cavity, 13, suction head component, 131, adsorption disk, 132, air pipe, 133, adsorption pipe, 134, connecting main pipe, 135, connecting branch pipe, 136, connecting disk, 137, first rubber cushion, 14, collecting and conveying component, 141, U-shaped pipe, 142, discharging pipe, 143, filter screen, 144, air pumping pipe, 15, outer top component, 151, fixing pipe, 152, mounting cylinder, 153, piston block, 154. elastic member, 155, push rod, 156, push plate, 157, second cushion, 158, blast pipe, 159, annular pipe.

Detailed Description

The invention is further described with reference to the following figures and embodiments.

First embodiment

Please refer to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6 in combination, in which fig. 1 is a schematic structural diagram of a first embodiment of a circulating intelligent molding production line for food of flying saucer shrimps in accordance with the present invention; FIG. 2 is a top view of the ensemble shown in FIG. 1; fig. 3 is a schematic structural view of the vacuum adsorption transfer mechanism shown in fig. 1; fig. 4 is a side view of the vacuum suction transfer mechanism shown in fig. 1; fig. 5 is a bottom view of the vacuum suction transfer mechanism shown in fig. 1; fig. 6 is a schematic structural diagram of the carrier shown in fig. 1. Circulating intelligent shaping production line of flying saucer shrimp food includes:

a mounting frame 1;

the two dough sheet conveying mechanisms 2 are respectively and fixedly arranged on two sides of the mounting rack 1;

the two groups of vacuum adsorption transfer mechanisms 3 are symmetrically and fixedly arranged at the top of the mounting frame 1 and positioned between the two dough cover conveying mechanisms 2, and the number of each group of vacuum adsorption transfer mechanisms 3 is two;

the two stuffing conveying mechanisms 4 are symmetrically and fixedly arranged in the middle of the top of the mounting rack 1;

the carrier conveying mechanism 11 is fixedly arranged at the top of the mounting frame 1 and positioned on the front side of the dough cover conveying mechanism 2, and a carrier 9 is arranged on the carrier conveying mechanism 11;

the two paste spraying mechanisms 5 are symmetrically and fixedly arranged at the top of the mounting frame 1 and are positioned on the upper side of the carrier conveying mechanism;

the pressing and punching mechanism 6 is fixedly arranged on one side of the top of the mounting frame 1;

the turnover mechanism 7 is fixedly arranged at the top of the mounting frame 1 and is positioned at one side of the pressing and punching mechanism 6;

and the finished product conveying belt 8 is fixedly arranged at the top of the mounting frame 1 and is positioned on one side of the turnover mechanism 7.

Six placing cavities 10 are preferably arranged on each carrier 9, three discharging pipes are arranged in each stuffing conveying mechanism 4, and therefore two stuffing conveying mechanisms 4 are arranged.

Vacuum adsorption moves and carries mechanism 3 and includes slide rail 31, sliding connection has first mounting panel 32 on slide rail 31, the top fixed mounting of first mounting panel 32 has first cylinder 33, the output fixed mounting of first cylinder 33 has second mounting panel 34, the bottom fixed mounting of second mounting panel 34 has second cylinder 35, the one end fixed mounting of second cylinder 35 output shaft has connecting plate 36.

One side of the first mounting plate 32 is connected to the output end of the pushing cylinder, and the first mounting plate 32 can be pushed to move transversely along the slide rail 31.

A plurality of air pipes 36 are fixedly mounted on the connecting plate 36, an adsorption plate 37 is fixedly mounted at the bottom end of the air pipes 36, and a suction cup 39 is arranged at the bottom of the adsorption plate 37.

The suction cup 39 is communicated at the center thereof with the inside of the suction plate 37.

A shielding plate is arranged between the finished product conveying belt 8 and the turnover mechanism 7, one side of the shielding plate is fixedly connected with an output shaft of a motor, and when the carrier 9 is turned over, the shielding plate is controlled to be horizontal by the motor, so that food is prevented from falling off when the carrier is turned over;

wherein the bottom of carrier 9 is provided with the spring and cushions, and both sides set up the gyro wheel, and carrier conveying mechanism 11 is including carrying the guide rail, and guide pulley and the transport guide rail sliding fit on the carrier 9 still including promoting the cylinder, promote the carrier and remove.

The working principle of the circulating intelligent molding production line for the flying saucer shrimp food provided by the invention is as follows:

manually putting the dough sheets on a conveying belt in a dough sheet conveying mechanism 2 with guiding and positioning functions, conveying the dough sheets to a vacuum adsorption transfer mechanism, vacuumizing the interior of an adsorption plate 37 through a vacuum pump and matching with an air pipe 38, adsorbing the dough sheets through a suction disc, sliding the adsorption plate to the upper side of a dough sheet carrier through a sliding rail 31, correspondingly placing the dough sheets in the carrier 9, and spraying the dough sheets on the dough sheet carrier to the dough sheets through a dough paste spraying mechanism 5;

then, the stuffing is conveyed to the middle of the wrappers through a stuffing conveying mechanism, and then the batter is sprayed again through a batter spraying mechanism on the other side, wherein the batter is mainly sprayed on the side of the wrappers, then the wrappers are placed on the upper side of the stuffing through a vacuum adsorption transfer mechanism 3 on the other side, and then the sides of the upper and lower wrappers are pressed through a pressing and punching mechanism, wherein the upper and lower wrappers are two-layer;

then overturn the carrier 9 through tilting mechanism 7, make fashioned food fall on finished product conveyer belt 8, wherein be provided with the sunshade between finished product conveyer belt 8 and tilting mechanism 7 to through motor control, when overturning the carrier, the sunshade rotates to be connected between finished product conveyer belt 8 and tilting mechanism 7, prevents that the finished product from dropping, and the finished product is carried to collecting the department through the finished product conveyer belt.

through setting up face skin conveying mechanism 2, cooperation vacuum adsorption move carry mechanism 3, defeated filling mechanism 4, paste spray mechanism 5, pressfitting die-cut mechanism 6, tilting mechanism 7, carrier 9 and finished product conveyer belt 8, can automize and realize adding the filling to the face skin, cover the face skin then the pressfitting type is carried to collecting the department, very big reduction artificial participation reduces the cost of labor, improves the efficiency of the processing of food.

Second embodiment

Referring to fig. 7, 8, 9 and 10, a second embodiment of the present application provides another circulating type intelligent flying saucer food forming line based on the circulating type intelligent flying saucer food forming line provided by the first embodiment of the present application. The second embodiment is only the preferred mode of the first embodiment, and the implementation of the second embodiment does not affect the implementation of the first embodiment alone.

Specifically, the circulating intelligent shaping production line of flying saucer shrimp food that the second embodiment of this application provided's difference lies in, the circulating intelligent shaping production line of flying saucer shrimp food, absorption chamber 12 has been seted up on adsorption plate 37, the inside fixed mounting in absorption chamber 12 has suction head subassembly 13, suction head subassembly 13 includes adsorption disc 131 and air-supply pipe 132, adsorption disc 131 fixed connection in the inside in absorption chamber 12, the intercommunication has the multiunit to adsorb pipe fitting 133 on adsorption disc 131.

The adsorption pipe fittings 133 are uniformly arranged on the adsorption disc 131, and the adsorption pipe fittings 133 are arranged in more than 25 groups.

The adsorption pipe 133 comprises four adsorption branch pipes, four of which the tops are communicated, and the top end of the adsorption pipe 133 is communicated with a connecting main pipe 134 through a connecting branch pipe 135.

The number of the connecting main pipes 134 is not less than four.

The bottom end of the gas pipe 132 is fixedly connected with a connecting disc 136, the top end of the connecting main pipe 134 penetrates through the connecting disc 136, and the surface of the connecting main pipe 134 is fixedly connected with the inside of the connecting disc 136.

A first rubber pad 137 is bonded to the bottom of the adsorption plate 131.

The first rubber cushion 137 is provided with a through hole corresponding to the adsorption branch pipe.

The top end of the gas pipe 132 is communicated with a collecting and conveying assembly 14, the collecting and conveying assembly 14 comprises a U-shaped pipe 141, the middle of the bottom of the U-shaped pipe 141 is communicated with a discharge pipe 142, one end of the U-shaped pipe 141 is fixedly provided with a filter screen 143, and one end of the U-shaped pipe 141 is communicated with an air suction pipe 144.

The filter screen 143 is installed inside the installation section of thick bamboo, and the both ends of installation section of thick bamboo are inside all to be provided with the internal thread, through internal thread and U-shaped pipe 141 fixed mounting, six exhaust tubes 144 are through seven siphunculus intercommunications, and the top of seven siphunculus is through pipeline and vacuum pump connection, and threaded connection has sealed lid on the discharging pipe 142.

The adsorption disc 131 is communicated with a plurality of outer ejection assemblies 15, each outer ejection assembly 15 comprises a fixed tube 151, the fixed tube 151 is fixedly connected with an installation tube 152 through a fixed rod, a piston block 153 is arranged in the installation tube 152, and a push rod 155 is fixedly connected to the center of the piston block 153.

The number of the outer pushing assemblies 15 is not less than eight, and gaps of the adsorption pipe fittings 133 on the adsorption disc 131 are arranged.

An elastic part 154 is arranged in the mounting cylinder 152 and on the upper side of the piston block 153, a push plate 156 is fixedly connected to the bottom end of the push rod 155, a second rubber gasket 157 is bonded to the bottom of the push plate 156, an annular tube 159 is arranged on the surface of the air pipe 132, and the top end of the fixing tube 151 is communicated with the annular tube 159 through an air exhaust tube 158.

The annular pipe 159 is communicated with the interior of the air conveying pipe 132;

when the wrapper is adsorbed, the air conveying pipe 132 is evacuated through the vacuum pump, so that the interiors of the adsorption pipe fittings 133 are evacuated, the wrapper can be adsorbed, the adsorption disc 131 is provided with a plurality of groups of adsorption pipe fittings 133, the surface adsorption pressure of the wrapper can be uniform, the adsorption force generated through one position is avoided, the wrapper is easy to damage and deform due to high pressure, and the wrapper can be better conveyed;

meanwhile, the gas in the fixed pipe 151 is evacuated through the exhaust pipe, at the moment, the push plate 156 is subjected to adsorption force and enters the fixed pipe 151, the piston block 153 is pushed through the push rod 155 to compress the elastic part 154, when the dough sheet needs to be put down, the vacuum pump stops working at the moment, and the push plate 156 is pushed under the action of the elastic part 154 to assist in pushing the dough sheet downwards, so that part of the dough sheet is prevented from being adhered to the adsorption disc 131 and not falling down;

and through setting up U-shaped pipe 141 cooperation filter screen 143, can filter the adsorbed flour of absorption pipe fitting 133, and can open the sealed lid on the discharging pipe 142, discharge flour, easy operation is convenient.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a circulating intelligent shaping production line of flying saucer shrimp food, includes: a mounting frame;

finished product conveyer belt, finished product conveyer belt fixed mounting in the top of mounting bracket just is located one side of tilting mechanism, its characterized in that:

the vacuum adsorption transfer mechanism comprises a slide rail, a first mounting plate is connected to the slide rail in a sliding mode, a first air cylinder is fixedly mounted at the top of the first mounting plate, a second mounting plate is fixedly mounted at the output end of the first air cylinder, a second air cylinder is fixedly mounted at the bottom of the second mounting plate, and a connecting plate is fixedly mounted at one end of the output shaft of the second air cylinder;

2. The circulating intelligent molding production line of flying saucer shrimp food of claim 1, characterized in that, adsorption cavity has been seted up on the adsorption plate, the inside fixed mounting in adsorption cavity has the suction head subassembly, the suction head subassembly includes adsorption disc and gas-supply pipe, adsorption disc fixed connection in the inside in adsorption cavity, the last intercommunication of adsorption disc has the multiunit to adsorb the pipe fitting.

3. The circulating intelligent molding production line of flying saucer shrimp food as claimed in claim 2, wherein the adsorption pipe fitting comprises four adsorption branch pipes, the tops of the four adsorption branch pipes are communicated, and the top ends of the adsorption pipe fitting are communicated with a main connecting pipe through branch connecting pipes.

4. The circulating intelligent molding production line of UFO shrimp food as claimed in claim 3, wherein the bottom end of the gas pipe is fixedly connected with a connection pad, the top end of the connection main pipe penetrates through the connection pad, and the surface of the connection main pipe is fixedly connected with the inside of the connection pad.

5. The circulating intelligent molding production line of flying saucer shrimp food as claimed in claim 2, wherein a first rubber mat is bonded to the bottom of the adsorption plate.

6. The circulating intelligent molding production line of flying saucer shrimp food as claimed in claim 2, wherein the top end of the gas pipe is communicated with a collecting and conveying assembly, the collecting and conveying assembly comprises a U-shaped pipe, the middle of the bottom of the U-shaped pipe is communicated with a discharging pipe, one end of the U-shaped pipe is fixedly provided with a filter screen, and one end of the U-shaped pipe is communicated with an air suction pipe.

7. The circulating intelligent molding production line of flying saucer shrimp food as claimed in claim 2, wherein the adsorption disc is communicated with a plurality of outer top assemblies, each outer top assembly comprises a fixed pipe, the inside of each fixed pipe is fixedly connected with an installation cylinder through a fixed rod, a piston block is arranged inside each installation cylinder, and a push rod is fixedly connected to the center of each piston block.

8. The circulating intelligent molding production line of flying saucer shrimp food as claimed in claim 7, wherein an elastic part is arranged inside the mounting cylinder and on the upper side of the piston block, a push plate is fixedly connected to the bottom end of the push rod, a second rubber pad is bonded to the bottom of the push plate, an annular pipe is arranged on the surface of the gas pipe, and the top end of the fixing pipe is communicated with the annular pipe through an exhaust pipe.