CN214546868U

CN214546868U - Dough mixer

Info

Publication number: CN214546868U
Application number: CN202120602618.0U
Authority: CN
Inventors: 姬锋伟
Original assignee: Xi'an Daye Food Co ltd
Current assignee: Xi'an Daye Food Co ltd
Priority date: 2021-03-24
Filing date: 2021-03-24
Publication date: 2021-11-02
Anticipated expiration: 2031-03-24

Abstract

The application relates to a dough mixer, and relates to the field of wheaten food manufacturing equipment. It includes the frame, the storehouse of kneading dough, rabbling mechanism and first actuating mechanism, the storehouse of kneading dough is located the frame, be provided with the cavity in the storehouse of kneading dough, rabbling mechanism is located the cavity, rabbling mechanism and cavity inner wall laminating, rabbling mechanism and storehouse of kneading dough rotate to be connected, first actuating mechanism's output shaft and rabbling mechanism fixed connection, still including being used for the extrusion subassembly of the inside dough piece in storehouse of kneading dough, the extrusion subassembly includes the fixed plate, the second actuating mechanism of movable plate and drive movable plate to the fixed plate motion, the fixed plate, movable plate and rabbling mechanism's pivot is perpendicular, the fixed plate, the movable plate all laminates with the inner wall in storehouse of kneading dough, the fixed plate is close to one side fixed connection of first actuating mechanism with rabbling mechanism, movable plate and rabbling mechanism sliding connection, second actuating mechanism's output shaft and movable plate fixed connection. This application has the convenience and bonds the dough that disperses for the bold dough, improves the effect of the efficiency of taking out the dough.

Description

Dough mixer

Technical Field

The application relates to the field of wheaten food manufacturing equipment, in particular to a dough mixing machine.

Background

The flour-mixing machine is a device for mixing and stirring flour and water, is convenient to stir a large amount of flour simultaneously, improves the flour-mixing efficiency, and is widely applied to the food industry.

Among the correlation technique, the china utility model patent that the bulletin is CN211482672U discloses a flour-mixing machine convenient to unloading, and it includes the frame, be provided with the storehouse of kneading dough in the frame, the feed inlet has been seted up on the storehouse of kneading dough, be provided with rabbling mechanism in the storehouse of kneading dough, be provided with the rotatory actuating mechanism of drive rabbling mechanism in the frame, the storehouse both sides of kneading dough are fixed with the trip shaft that the level set up respectively, the trip shaft rotates to be connected in the frame, be equipped with tilting mechanism in the frame, tilting mechanism is including articulating the trip bar that keeps away from storehouse one end of kneading dough in the trip shaft, the trip bar sets up with the trip shaft is perpendicular, be provided with spacing seat in the frame, set up on the spacing seat with trip bar complex spacing groove, the spacing groove includes material loading draw-in groove and unloading draw-in groove.

In the prior art, the flour is usually formed into a plurality of doughs with different sizes after being stirred in the dough kneading chamber, and the doughs are distributed in the dough kneading chamber.

SUMMERY OF THE UTILITY MODEL

To improve the efficiency of dough extraction, the present application provides a dough mixer.

The application provides a flour-mixing machine adopts following technical scheme:

a dough kneading machine comprises a machine frame, a dough kneading bin, an agitating mechanism and a first driving mechanism for driving the agitating mechanism to rotate, wherein the dough kneading bin is positioned on the machine frame, a cavity is arranged in the dough kneading bin, an opening communicated with the cavity is formed in the top of the dough kneading bin, the agitating mechanism is positioned in the cavity, the agitating mechanism is attached to the inner wall of the cavity, the agitating mechanism is rotatably connected with the dough kneading bin, an output shaft of the first driving mechanism is fixedly connected with the agitating mechanism, the dough kneading machine further comprises an extruding component for extruding dough scraps in the dough kneading bin, the extruding component comprises a fixed plate, a movable plate and a second driving mechanism for driving the movable plate to move towards the fixed plate, rotating shafts of the fixed plate, the movable plate and the agitating mechanism are vertical, the fixed plate and the movable plate are both attached to the inner wall of the dough kneading bin, and the fixed plate and the agitating mechanism are fixedly connected with one side, which is close to the first driving mechanism, the movable plate is connected with the stirring mechanism in a sliding mode, and an output shaft of the second driving mechanism is fixedly connected with the movable plate.

Through adopting above-mentioned technical scheme, put into the cavity in dough mixing storehouse with flour and water, flour and water are in the clearance between movable plate and the fixed plate, open first actuating mechanism, rabbling mechanism, movable plate and fixed plate rotate simultaneously, rabbling mechanism is to fully stirring flour and water, form the dough after flour and water mix, close first actuating mechanism, open second actuating mechanism, second actuating mechanism drives the movable plate and slides to the fixed plate, the clearance between movable plate and the fixed plate reduces, the dough between movable plate and the fixed plate is extruded, the gathering of dispersed dough is the bold, second actuating mechanism drives the movable plate and slides to the one side of keeping away from the fixed plate, the personnel take out the dough mixing storehouse with the dough of gathering, reduce the time that takes out the dough, improve the efficiency of taking out the dough.

Optionally, the second driving mechanism includes an air cylinder and a rotary joint, the housing of the air cylinder is fixedly connected to the frame, the piston rod of the air cylinder is coaxial with the rotating shaft of the stirring mechanism, the piston rod of the air cylinder is fixedly connected to one side of the rotary joint, and the other side of the rotary joint is fixedly connected to the movable plate.

Through adopting above-mentioned technical scheme, when rabbling mechanism drove the movable plate and rotates, the movable plate drove rotary joint's one end and rotates, and one side that rotary joint and cylinder's piston rod were close to keeps static, reduces the piston rod of cylinder and takes place pivoted possibility, improves the cylinder and drives the stability of movable plate to the motion of deciding the board, and the convenience is glued the dough between movable plate and the deciding the board.

Optionally, a scraping strip is arranged between the movable plate and the dough kneading bin, the cross section of the scraping strip is triangular, and the scraping strip is arranged on one side of the movable plate facing the fixed plate.

Through adopting above-mentioned technical scheme, set up and scrape the strip and make things convenient for when the movable plate slides and closely laminate with the storehouse lateral wall of kneading dough, conveniently clear up adnexed dough on the storehouse lateral wall of kneading dough, improve the sticky convenience of dough, the convenient dough after will gluing takes out.

Optionally, the wiper strip is detachably connected to the movable plate.

Through adopting above-mentioned technical scheme, scrape the strip and promote the dough bonding process on the storehouse lateral wall of kneading dough and take place wearing and tearing, scrape the strip and with the storehouse lateral wall between the clearance grow, dismantle the strip of scraping after the wearing and tearing, install new strip of scraping, improve the convenience of scraping the attached dough on the strip clearance and the storehouse lateral wall of kneading dough.

Optionally, the movable plate week side sets up the constant head tank, scrape the strip and closely laminate with the lateral wall of constant head tank, scrape and be connected with at least three check lock pole between strip and the constant head tank, it is three the length direction of check lock pole is perpendicular with rabbling mechanism's pivot direction.

Through adopting above-mentioned technical scheme, when changing the scraping strip, demolish three check lock lever, the lateral wall of scraping strip and constant head tank removes the stationary state, demolishs the scraping strip, installs new scraping strip after, installs the normal position with three check lock lever, and the scraping strip is fixed, and the scraping strip of conveniently renewing reduces the dough and adheres to the possibility in kneading dough storehouse inner wall.

Optionally, the dough kneading chamber is rotatably connected with the rack, and a positioning mechanism for positioning the dough kneading chamber is arranged between the dough kneading chamber and the rack.

Through adopting above-mentioned technical scheme, will knead dough storehouse and frame and rotate and connect, make things convenient for the dough to stir and accomplish the back and slide out the storehouse of kneading dough, improve the convenience in dough roll-off storehouse of kneading dough, improve the efficiency of taking out the dough.

Optionally, the positioning mechanism includes a pull rod and a spring, the pull rod is slidably connected to the frame, the pull rod penetrates through the frame, the pull rod is perpendicular to the outer wall of the dough kneading bin, and the spring is used for driving the pull rod to abut against the outer wall of the dough kneading bin.

Through adopting above-mentioned technical scheme, the hybrid process of dough, the outer wall in pull rod and kneading dough storehouse is closely laminated, kneading dough storehouse and frame are fixed, the stability of dough stirring process is improved, the dough stirring is accomplished the back, to keeping away from one side pulling pull rod in kneading dough storehouse, the pull rod separates with the kneading dough storehouse, the rotation takes place in the kneading dough storehouse, when the opening level in kneading dough storehouse, loosen the pull rod, the pull rod supports tightly with the lateral wall in kneading dough storehouse, conveniently take out the dough in the kneading dough storehouse, the convenience of taking out the dough is improved.

Optionally, one side that the storehouse of kneading dough is close to the pull rod is provided with the sliding tray, the sliding tray is the arc, be provided with material loading hole and unloading hole in the sliding tray, when the storehouse opening of kneading dough is vertical upwards, pull rod and material loading hole closely laminate, when the storehouse opening of kneading dough rotates to the horizontal direction, pull rod and unloading hole closely laminate.

Through adopting above-mentioned technical scheme, when the storehouse opening of kneading dough was up, one side that the pull rod is close to the storehouse of kneading dough stretched into the material loading hole, make things convenient for rabbling mechanism to stir the dough in the storehouse of kneading dough, reduce the possibility that the dough dropped, the dough is in the bonding back under the effect of fixed plate, tensile pull rod, the pull rod slides along the sliding tray, when the storehouse opening of kneading dough was towards the horizontal direction, the pull rod slides to unloading hole department, the pull rod stretches into the unloading downthehole under the effect of spring, the storehouse of kneading dough is fixed, make things convenient for operating personnel to take out the dough, improve the convenience of taking out the dough.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the fixed plate, the movable plate and the second driving mechanism are arranged, so that the dough stirred in the dough kneading bin can be conveniently bonded, the possibility that the dough is dispersed in the dough kneading bin after stirring is reduced, the dispersed dough can be conveniently bonded into large dough, and the dough taking efficiency is improved;

2. the second driving mechanism comprises an air cylinder and a rotary joint, the rotary joint can reduce the possibility of rotation of a piston rod of the air cylinder, the service life of the air cylinder is prolonged, the stability of the air cylinder for pushing the movable plate to extrude the dough is improved, and the efficiency of taking out the dough is improved;

3. the dough kneading bin is rotatably connected with the rack, the positioning mechanism is arranged between the dough kneading bin and the rack, the dough kneading bin is conveniently inclined, the convenience of taking out dough from the dough kneading bin is improved, and the efficiency of taking out dough is improved.

Drawings

Fig. 1 is a schematic structural diagram of a discharging state of a dough mixer according to an embodiment of the present application.

Fig. 2 is a perspective sectional view of a discharging state of a dough mixer according to an embodiment of the present application.

Fig. 3 is a schematic structural diagram of a discharging state of a dough mixer according to an embodiment of the present application.

Description of reference numerals: 1. a frame; 101. a base plate; 102. a column; 103. a connecting beam; 2. a dough kneading bin; 201. a cavity; 202. an opening; 203. a sliding groove; 204. a feeding hole; 205. a blanking hole; 3. a stirring mechanism; 4. a first drive mechanism; 41. a motor; 42. a driving wheel; 43. a driven wheel; 44. a belt; 5. an extrusion assembly; 51. fixing a plate; 52. a movable plate; 521. positioning a groove; 53. a second drive mechanism; 531. a cylinder; 532. a rotary joint; 6. scraping the strips; 61. a locking lever; 7. a positioning mechanism; 71. a pull rod; 72. a spring; 8. a cover plate; 9. and (4) switching.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a dough mixing machine. Referring to fig. 1 and 2, the dough kneading machine comprises a frame 1, a dough kneading bin 2, a stirring mechanism 3, a first driving mechanism 4 for driving the stirring mechanism 3 to rotate and an extrusion assembly 5 for extruding dough scraps in the dough kneading bin 2, wherein the frame 1 comprises two bottom plates 101, two upright posts 102 and a connecting beam 103, the bottom plates 101, the upright posts 102 and the connecting beam 103 are all rectangular, the two bottom plates 101 are horizontally arranged, the upright posts 102 correspond to the backing plates one by one, the upright plates are welded with the backing plates, the connecting beam 103 is positioned between the two upright posts 102, the end parts of the connecting beam 103 are welded with the upright posts 102, the dough kneading bin 2 is positioned at the top of the rack 1, a cavity 201 is formed in the dough kneading bin 2, an opening 202 communicated with the cavity 201 is formed in the top of the dough kneading bin 2, a cover plate 8 is arranged at the opening 202, the cover plate 8 is hinged with the top of the dough kneading bin 2, a hinged shaft of the cover plate 8 and the dough kneading bin 2 is parallel to the connecting beam 103, and a switch 9 is arranged on one side of the cover plate 8 and the dough kneading bin 2 away from the hinged shaft; the stirring mechanism 3 is positioned in the cavity 201, the stirring mechanism 3 is attached to the inner wall of the cavity 201, the stirring mechanism 3 is rotatably connected with the dough kneading bin 2, the stirring mechanism 3 comprises two stirring rods, the two stirring rods are cylindrical, and the two stirring rods are parallel to the connecting beam 103; the first driving mechanism 4 is arranged at the outer side of the dough kneading bin 2, the first driving mechanism 4 comprises a motor 41, a driving wheel 42, a driven wheel 43 and a belt 44, the motor 41 is horizontally arranged, a shell of the motor 41 is fixedly connected with the frame 1 through bolts, an output shaft of the motor 41 is connected with the driving wheel 42 in a key mode, the driven wheel 43 and the stirring mechanism 3 are integrally formed, the belt 44 is wound between the driving wheel 42 and the driven wheel 43, the extrusion assembly 5 comprises a fixed plate 51, a movable plate 52 and a second driving mechanism 53 for driving the movable plate 52 to move towards the fixed plate 51, the fixed plate 51 and the movable plate 52 are both cylindrical, the fixed plate 51 and the movable plate 52 are both attached to the inner wall of the dough kneading bin 2, the fixed plate 51 and the movable plate 52 are both vertical to a rotating shaft of the stirring mechanism 3, the fixed plate 51 is positioned at one side of the stirring mechanism 3 close to the driven wheel 43, the fixed plate 51 is welded with the stirring mechanism 3, the fixed plate 51 and the driven wheel 43 are coaxial, the movable plate 52 is positioned at one side of the dough kneading bin 2 far away from the fixed plate 51, the movable plate 52 is connected with the stirring mechanism 3 in a sliding way; the second driving mechanism 53 is arranged on one side of the dough mixing bin 2 away from the first driving mechanism 4, the second driving mechanism 53 comprises an air cylinder 531 and a rotary joint 532, the air cylinder 531 and the rotary joint 532 are both horizontally arranged, the axis of the air cylinder 531 and the axis of the rotary joint 532 are coaxial with the rotating shaft of the stirring mechanism 3, the shell of the air cylinder 531 is fixedly connected with the upright column 102 through a bolt, the piston rod of the air cylinder 531 is fixedly connected with one end of the rotary joint 532 through a thread, and the other end of the rotary joint 532 is welded with the movable plate 52. Flour and water are placed in the cavity 201 of the dough kneading bin 2, the flour and the water are located in a gap between the movable plate 52 and the fixed plate 51, the motor 41 drives the stirring mechanism 3 to rotate, the stirring mechanism 3, the movable plate 52 and the fixed plate 51 rotate simultaneously, the stirring mechanism 3 fully stirs the flour and the water, the flour and the water are mixed to form dough, the motor 41 is turned off, the air cylinder 531 is turned on, a piston rod of the air cylinder 531 pushes the movable plate 52 to slide towards the fixed plate 51, the gap between the movable plate 52 and the fixed plate 51 is reduced, the dough between the movable plate 52 and the fixed plate 51 is extruded, the dispersed dough is bonded into large dough, the piston rod of the air cylinder 531 drives the movable plate 52 to slide towards one side far away from the fixed plate 51, and a person takes out the bonded dough from the dough kneading bin 2, so that the dough taking-out efficiency is improved.

As shown in fig. 2 and 3, in order to facilitate the taking out of the bonded dough, the dough kneading bin 2 is rotatably connected with the frame 1, a positioning mechanism 7 for positioning the dough kneading bin 2 is arranged between the dough kneading bin 2 and the upright post 102, the positioning mechanism 7 is arranged on one side of the dough kneading bin 2 close to the second driving mechanism 53, the positioning mechanism 7 comprises a pull rod 71 and a spring 72, the pull rod 71 is cylindrical, the pull rod 71 is horizontally arranged, the pull rod 71 penetrates through the upright post 102, the pull rod 71 is slidably connected with the upright post 102, the pull rod 71 is perpendicular to the outer wall of the dough kneading bin 2, one end of the spring 72 is welded with the upright post 102, the other end of the spring 72 is welded with one end of the pull rod 71 far away from the upright post 102, when the pull rod 71 is tightly abutted against the side wall of the dough kneading bin 2, the side of the dough kneading bin 2 close to the pull rod 71 is provided with a sliding groove 203, the section of the sliding groove 203 is rectangular, the sliding groove 203 is arc-shaped, a feeding hole 204 and a discharging hole 205 are arranged in the sliding groove 203, the feeding hole 204 and the discharging hole 205 are both cylindrical, the length of the feeding hole 204 and the length of the discharging hole 205 are larger than the depth of the sliding groove 203, when the opening 202 of the dough bin 2 is vertically upward, the pull rod 71 extends into the feeding hole 204, and when the opening 202 of the dough bin 2 rotates to be in the horizontal direction, the pull rod 71 extends into the discharging hole 205. The mixing process of dough, pull rod 71 stretches into in the material loading hole 204, dough storehouse 2 is fixed with frame 1, improve the stability of dough stirring process, the dough stirring is accomplished and the bonding back, to keeping away from one side pulling pull rod 71 of dough storehouse 2, spring 72 is compressed, pull rod 71 and material loading hole 204 separation, dough storehouse 2 rotates with kneading dough, when opening 202 level of dough storehouse 2, operating personnel releases pull rod 71, pull rod 71 under the effect of spring 72 with stretch into unloading hole 205. Will knead dough storehouse 2 and frame 1 and rotate to be connected and set up positioning mechanism 7, make things convenient for operating personnel to take out the dough, improve the convenience of taking out the dough.

Referring to fig. 2 and 3, in order to reduce the possibility that dough adheres to the inner wall of the dough kneading bin 2, be provided with between the movable plate 52 and the dough kneading bin 2 and scrape strip 6, the cross-section of scraping strip 6 is triangle-shaped, the lateral wall of scraping strip 6 and the inner wall of dough kneading bin 2 closely laminate, scrape strip 6 and can dismantle with dough kneading bin 2 and be connected, movable plate 52 week side sets up constant head tank 521, constant head tank 521 cross-section is the rectangle, constant head tank 521 is seted up around the week side of movable plate 52, scrape strip 6 and stretch into in the constant head tank 521, be connected with four check locks 61 between scraping strip 6 and the constant head tank 521, four check locks 61 are the threaded rod, the length direction of four check 61 is perpendicular with rabbling mechanism 3's pivot, four check 61 all with movable plate 52 threaded connection. When the wiper strip 6 is replaced, the four lock levers 61 are removed, the wiper strip 6 and the side walls of the positioning groove 521 are released from the fixed state, the wiper strip 6 is removed, a new wiper strip 6 is mounted, and then the four lock levers 61 are screwed to the movable plate 52, thereby fixing the wiper strip 6. Set up and scrape 6 convenience and clear up the adnexed dough on the 2 lateral walls in storehouse of kneading dough, improve the sticky convenience of dough.

The implementation principle of a dough mixing machine in the embodiment of the application is as follows: flour and water are firstly put into the dough kneading bin 2, the motor 41 is started, the motor 41 drives the stirring mechanism 3 to rotate, one end of the rotary joint 532 rotates along with the movable plate 52, the flour and the water are mixed into dough by the stirring mechanism 3, the motor 41 is closed, the air cylinder 531 is started, the piston rod of the air cylinder 531 pushes the movable plate 52 to move towards the top plate, the movable plate 52 and the scraping strip 6 push the dispersed dough to be bonded, the dispersed dough is bonded into large dough, the piston rod of the air cylinder 531 drives the movable plate 52 to slide towards one side far away from the fixed plate 51, the pull rod 71 is pulled towards one side far away from the dough kneading bin 2, the spring 72 is stretched, the pull rod 71 is separated from the feeding hole 204, the dough kneading bin 2 is rotated, when the opening 202 of the dough kneading bin 2 is in a horizontal position, the pull rod 71 is loosened, the pull rod 71 is driven by the spring 72 to extend into the feeding hole 205, the cover plate 8 is opened, and the dough is taken out of the dough kneading bin 2. This application is convenient to be bonded the dough of dispersion for the bold dough, improves the efficiency of taking out the dough.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a dough mixer, includes frame (1), kneading dough storehouse (2), rabbling mechanism (3) and drive rabbling mechanism (3) pivoted first actuating mechanism (4), kneading dough storehouse (2) are located frame (1), kneading dough storehouse (2) inside is provided with cavity (201), kneading dough storehouse (2) top is provided with opening (202) that are linked together with cavity (201), rabbling mechanism (3) are located cavity (201), rabbling mechanism (3) and cavity (201) inner wall laminating, rabbling mechanism (3) and kneading dough storehouse (2) rotate and are connected, the output shaft and rabbling mechanism (3) fixed connection of first actuating mechanism (4), its characterized in that: still including being used for extrudeing the inside clastic extrusion subassembly (5) of dough of kneading dough storehouse (2), extrusion subassembly (5) are including deciding board (51), movable plate (52) and drive movable plate (52) to second actuating mechanism (53) of deciding board (51) motion, the pivot of deciding board (51), movable plate (52) and rabbling mechanism (3) is perpendicular, decide board (51), movable plate (52) and all laminate with the inner wall of kneading dough storehouse (2), decide board (51) and rabbling mechanism (3) and be close to one side fixed connection of first actuating mechanism (4), movable plate (52) and rabbling mechanism (3) sliding connection, the output shaft and movable plate (52) fixed connection of second actuating mechanism (53).

2. A dough mixer as claimed in claim 1, wherein: the second driving mechanism (53) comprises an air cylinder (531) and a rotary joint (532), a shell of the air cylinder (531) is fixedly connected with the rack (1), a piston rod of the air cylinder (531) is coaxial with a rotating shaft of the stirring mechanism (3), a piston rod of the air cylinder (531) is fixedly connected with one side of the rotary joint (532), and the other side of the rotary joint (532) is fixedly connected with the movable plate (52).

3. A dough mixer as claimed in claim 1, wherein: and a scraping strip (6) is arranged between the movable plate (52) and the dough kneading bin (2), the section of the scraping strip (6) is triangular, and the scraping strip (6) is arranged on one side of the movable plate (52) facing the fixed plate (51).

4. A dough mixer as claimed in claim 3, wherein: the scraping strip (6) is detachably connected with the movable plate (52).

5. A dough mixer as claimed in claim 4, wherein: the movable plate (52) is circumferentially provided with a positioning groove (521), the scraping strip (6) is tightly attached to the side wall of the positioning groove (521), at least three locking rods (61) are connected between the scraping strip (6) and the positioning groove (521), and the length direction of each locking rod (61) is perpendicular to the rotating shaft direction of the stirring mechanism (3).

6. A dough mixer as claimed in claim 1, wherein: the dough kneading chamber (2) is rotationally connected with the frame (1), and a positioning mechanism (7) for positioning the dough kneading chamber (2) is arranged between the dough kneading chamber (2) and the frame (1).

7. A dough mixer as claimed in claim 6, wherein: the positioning mechanism (7) comprises a pull rod (71) and a spring (72), the pull rod (71) is connected with the rack (1) in a sliding mode, the pull rod (71) penetrates through the rack (1), the pull rod (71) is perpendicular to the outer wall of the dough kneading bin (2), and the spring (72) is used for driving the pull rod (71) to abut against the outer wall of the dough kneading bin (2).

8. A dough mixer as claimed in claim 7, wherein: one side that kneading dough storehouse (2) is close to pull rod (71) is provided with sliding tray (203), sliding tray (203) are the arc, be provided with material loading hole (204) and unloading hole (205) in sliding tray (203), when kneading dough storehouse (2) opening (202) is vertical upwards, pull rod (71) closely laminates with material loading hole (204), when kneading dough storehouse (2) opening (202) rotation is the horizontal direction, pull rod (71) closely laminates with unloading hole (205).