CN219963478U - Full-automatic capsule filling machine - Google Patents

Abstract

The utility model discloses a full-automatic capsule filling machine which comprises a workbench, wherein an installation frame is fixedly welded on the top surface of the workbench, a second rotating shaft and a third rotating shaft are symmetrically installed on the installation frame, a first supporting table is fixedly installed in the center of the top surface of the workbench, a stepping motor is installed on the bottom surface of the first supporting table, the output end of the stepping motor is connected with the first rotating shaft, a first gear is fixedly installed at the top end of the first rotating shaft penetrating through the top surface of the installation frame, a second gear is fixedly installed at the top end of the second rotating shaft, a third gear is fixedly installed at the top end of the third rotating shaft, and the first gear, the second gear and the third gear are meshed with each other. The beneficial effects are that: the full-automatic capsule filling machine is provided with the stepping motor, the first rotary table, the second rotary table and the third rotary table, so that the full-automatic capsule filling machine can drive the three rotary tables to rotate in a stepping way at the same frequency by only using one motor, the manufacturing cost of the equipment and the power consumption during use are greatly reduced, the market competitiveness is good, and the practicability is higher.

Description

Full-automatic capsule filling machine

Technical Field

The utility model relates to the technical field of capsule filling, in particular to a full-automatic capsule filling machine.

Background

The capsule is a form of medicine package, and the medicine filled in the capsule is powder or granule which is irritative to esophagus and gastric mucosa, or has bad taste, is easy to volatilize, is easy to be decomposed by saliva in oral cavity and is easy to inhale the medicine of trachea, and the medicine is filled in the capsule, so that the medicine property is protected from being destroyed, and the digestive organ and respiratory tract are protected.

The prior art discloses the publication number: CN211096117U a fully automatic capsule filling machine, comprising a workbench; the supporting table is fixedly arranged at the center position of the top end of the workbench, and a notch is integrally formed at the center position of the right side of the supporting table; the first rotating disc is arranged at the top end of the supporting table; the first jack gaps are formed in the circumference of the upper surface of the first rotary table, the height of the first jack is the same as that of the first rotary table, and the first jack positioned at the rightmost side of the top end of the first rotary table is communicated with the notch integrally formed on the right side of the supporting table; the first motor is fixedly arranged at the center of the top end of the workbench. This full-automatic capsule filling machine not only can make the medicine ration fill, avoids the waste of medicine, need not the workman moreover and can take off the capsule that the filling closed the bag finishes manually, slows down workman's amount of labour, slows down workman's work rhythm, satisfies workman's work demand, is favorable to extensive popularization.

Said utility model utilizes the first motor, second motor and third motor to respectively drive first turntable, second turntable and third turntable to make same-frequency step-by-step rotation so as to meet the requirements for automatic filling of medicine powder and automatic bag-closing and automatic discharging of capsule, but the above-mentioned three motors can greatly raise manufacturing cost and power consumption of said device, and can ensure that the synchronous operation of three motors is difficult, so that the practicality of full-automatic capsule filling machine can be reduced.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a full-automatic capsule filling machine which has the advantages of greatly reducing the manufacturing cost of equipment and the power consumption during use, along with good market competitiveness and stronger practicability, and further solves the problems in the background technology.

(II) technical scheme

In order to realize the advantages that only one motor can drive three turntables to rotate in a same-frequency stepping way, the manufacturing cost of equipment and the power consumption during use are greatly reduced, the market competitiveness is good, and the practicability is stronger, the specific technical scheme adopted by the utility model is as follows: the utility model provides a full-automatic capsule filling machine, includes the workstation, workstation top surface fixed welding has the mounting bracket, and installs second pivot and third pivot on the mounting bracket symmetry, workstation top surface central authorities fixed mounting has first brace table, and first brace table bottom surface installs step motor to step motor output connection installs first pivot, first pivot top runs through mounting bracket top surface fixed mounting and has first gear, second pivot top end fixed mounting has the second gear, third pivot top end fixed mounting has the third gear, first gear and second gear, third gear intermeshing, fixed mounting has first carousel in the first pivot, and first carousel bottom surface and first brace table top surface looks butt, mounting bracket one side lateral wall fixed welding has the second brace table, and first through-hole has been seted up to second brace table one side, and second carousel bottom surface and second brace table top surface looks butt, mounting bracket opposite side lateral wall fixed welding has the third brace table, and third brace table one side is equipped with the second through-hole, a plurality of even jacks have been seted up to first carousel edge, a plurality of even jacks have been seted up to first carousel and third edge.

Further, the storage box is fixedly welded on the side wall of one side of the mounting frame, the discharging hopper is fixedly arranged in the inner cavity of the storage box, the bottom end of the discharging hopper is communicated and connected with the filling pipe, a material conveying shaft arranged in the inner cavity of the storage box is arranged above the filling pipe, a feeding screw is fixedly arranged on the material conveying shaft, a second driving wheel is fixedly arranged at the top end of the material conveying shaft, a first driving wheel is fixedly arranged on the second rotating shaft, and a driving belt is sleeved between the first driving wheel and the second driving wheel.

Further, a first electric push rod fixedly mounted on the top surface of the inner side of the mounting frame is arranged above the third jack on one side, and a push plate is fixedly mounted at the movable end of the first electric push rod.

Further, the alignment groove is formed in one side of the first supporting table, the baffle is embedded in the alignment groove, the second electric push rod is fixedly arranged on the side wall of the mounting frame, and the output end of the second electric push rod is fixedly connected with one side of the baffle.

Further, the first gear, the second gear and the third gear are identical in size specification, the first turntable, the second turntable and the third turntable are identical in size specification, and the first jack, the second jack and the third jack are identical in size specification.

Further, a control panel is fixedly arranged on the side wall of the mounting frame, and the control panel is electrically connected with the stepping motor, the first electric push rod and the second electric push rod.

Further, the top surface of the storage box is connected with a material supplementing pipe penetrating through the installation frame.

(III) beneficial effects

Compared with the prior art, the utility model provides a full-automatic capsule filling machine, which has the following beneficial effects:

(1) Before use, the utility model is provided with a stepping motor, a first rotary table, a second rotary table and a third rotary table, a worker inserts the lower capsule shell into a first jack uniformly arranged on the first rotary table, inserts the upper capsule shell into a third jack arranged on the third rotary table, when in use, the worker can start the stepping motor arranged at the center of the bottom surface of the first supporting table through a control panel to drive the first rotary table to rotate, the first rotary table is fixedly arranged on the first rotary table, the bottom surface of the first rotary table is abutted against the top surface of the first supporting table, the first rotary table can rotate in steps with the first rotary table at the same frequency, and because the top end of the first rotary table is fixedly provided with a first gear, the second rotary table and the third rotary table are symmetrically arranged on the mounting frame, one end of the second rotary table is fixedly provided with a second gear, one end of the third rotary table is fixedly provided with a third gear, the first gear, the second gear and the third gear are meshed with each other, the sizes of the first gear, the second gear and the third gear are the same, so that the first rotating shaft can drive the second rotating shaft and the third rotating shaft to rotate in a same frequency step, and because the second rotating shaft is fixedly provided with a second rotating disc with the top surface of the second supporting table being abutted, the third rotating shaft is fixedly provided with a third rotating disc with the top surface of the third supporting table being abutted, the sizes of the first rotating disc, the second rotating disc and the third rotating disc are the same, the first rotating disc, the second rotating disc and the third rotating disc can realize the same frequency step rotation, when the medicinal powder materials in the discharging box quantitatively fall into a second jack formed in the second rotating disc, the medicinal powder materials can move to a first through hole along with the rotation of the second rotating disc and fall into a lower capsule shell placed in the first jack through the first through hole, the lower capsule shell filled with the medicine powder can move to the position right below the second through hole formed in the third supporting table along with the rotation of the first rotating disc, at the moment, the control panel starts the first electric push rod to push the push plate to push the upper capsule shell in the third jack out of the second through hole, the upper capsule shell and the lower capsule shell filled with the medicine powder are combined to form capsules, after capsule particles are obtained, the control panel starts the second electric push rod to drive the baffle to be pulled out of the alignment groove formed in the first supporting table, the capsule particles are discharged after falling, the capsule particles filled with the medicine powder materials can be filled and processed by using the collecting box, then the first electric push rod drives the push plate to reset, the second electric push rod drives the baffle to reset, the steps are repeated, and continuous and automatic operation of capsule medicine powder filling can be achieved, so that the full-automatic capsule filling machine can drive three rotating discs to rotate in a same frequency step mode by using only one motor, the manufacturing cost of equipment and power consumption during use are greatly reduced, the market competitiveness is good, and practicability is stronger.

(2) The utility model is provided with the second rotating shaft, the material conveying shaft and the material conveying screw, as described above, the powder material in the material storage box needs to be filled into the second insertion hole formed in the second rotating disc through the filling pipe, the material conveying shaft arranged in the material storage box is arranged above the filling pipe, the material conveying screw is fixedly arranged on the material conveying shaft, in addition, a transmission belt is sleeved between the second transmission wheel fixedly arranged at the top end of the material conveying shaft and the first transmission wheel fixedly arranged on the second rotating shaft, so that the material conveying shaft can be driven to rotate in a stepping manner by a certain angle when the second rotating shaft rotates in a stepping manner, the powder material in the lower hopper can be quantitatively conveyed into the filling pipe through the material conveying screw fixedly arranged on the material conveying shaft, and the powder can fall into the second insertion hole through the filling pipe, so that the blockage of the powder at the pipe mouth of the filling pipe can be effectively prevented, the filling amount of the powder at each time is ensured to be consistent, and the practicality of the full-automatic capsule filling machine is further improved without independently arranging an arch and a metering mechanism which is electrically driven.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a fully automatic capsule filling machine according to an embodiment of the present utility model;

FIG. 2 is a top view of a first gear, a second gear, and a third gear of a fully automatic capsule filling machine according to an embodiment of the present utility model;

FIG. 3 is a top view of a first turntable, a second turntable, and a third turntable of a fully automatic capsule filling machine according to an embodiment of the present utility model;

FIG. 4 is an enlarged view at A of FIG. 1 according to an embodiment of the present utility model;

FIG. 5 is an enlarged view at B of FIG. 1 according to an embodiment of the present utility model;

FIG. 6 is an enlarged view at C of FIG. 1 according to an embodiment of the present utility model;

fig. 7 is a perspective view of a first gear, a second gear and a third gear of the full automatic capsule filling machine according to an embodiment of the present utility model.

In the figure:

1. a work table; 2. a first support table; 3. a stepping motor; 4. a second electric push rod; 5. a third support table; 6. a third turntable; 7. a first electric push rod; 8. a third gear; 9. a third rotating shaft; 10. a first turntable; 11. a first rotating shaft; 12. a first gear; 13. a second rotating shaft; 14. a second gear; 15. a material supplementing pipe; 16. a storage bin; 17. a second support table; 18. a second turntable; 19. a mounting frame; 20. a first jack; 21. a second jack; 22. a third jack; 23. a first through hole; 24. a second through hole; 25. a push plate; 26. an alignment groove; 27. a baffle; 28. a first driving wheel; 29. a drive belt; 30. a second driving wheel; 31. a material conveying shaft; 32. a feeding screw; 33. a filling pipe; 34. and (5) discharging a hopper.

Detailed Description

For the purpose of further illustrating the various embodiments, the present utility model provides the accompanying drawings, which are a part of the disclosure of the present utility model, and which are mainly used to illustrate the embodiments and, together with the description, serve to explain the principles of the embodiments, and with reference to these descriptions, one skilled in the art will recognize other possible implementations and advantages of the present utility model, wherein elements are not drawn to scale, and like reference numerals are generally used to designate like elements.

According to an embodiment of the present utility model, a fully automatic capsule filling machine is provided.

The utility model will be further described with reference to the accompanying drawings and the specific embodiments, as shown in fig. 1-7, the full-automatic capsule filling machine according to the embodiment of the utility model comprises a workbench 1, a mounting frame 19 is fixedly welded on the top surface of the workbench 1, a second rotating shaft 13 and a third rotating shaft 9 are symmetrically arranged on the mounting frame 19, a first supporting table 2 is fixedly arranged in the center of the top surface of the workbench 1, a stepping motor 3 is arranged on the bottom surface of the first supporting table 2, the output end of the stepping motor 3 is connected with a first rotating shaft 11, the top end of the first rotating shaft 11 penetrates through the top surface of the mounting frame 19 and is fixedly provided with a first gear 12, the top end of the second rotating shaft 13 is fixedly provided with a second gear 14, the top end of the third rotating shaft 9 is fixedly provided with a third gear 8, the first gear 12 is meshed with the second gear 14 and the third gear 8, a first rotating disc 10 is fixedly arranged on the first rotating shaft 11, the bottom surface of the first rotating shaft 11 is abutted against the top surface of the first supporting table 2, the side wall of one side of the mounting frame 19 is fixedly welded with a second supporting table 17, one side of the second supporting table 17 is provided with a first through hole 23, the second rotating shaft 13 is fixedly provided with a second rotary table 18, the bottom surface of the second rotary table 18 is abutted against the top surface of the second supporting table 17, the side wall of the other side of the mounting frame 19 is fixedly welded with a third supporting table 5, one side of the third supporting table 5 is provided with a second through hole 24, the third rotating shaft 9 is fixedly provided with a third rotary table 6, the bottom surface of the third rotary table 6 is abutted against the top surface of the second supporting table 17, the edge of the first rotary table 10 is uniformly provided with a plurality of first jacks 20, the edge of the second rotary table 18 is uniformly provided with a plurality of second jacks 21, the edge of the third rotary table 6 is uniformly provided with a plurality of third jacks 22, the full-automatic capsule filling machine can drive the three rotary tables to rotate in steps at the same frequency by using only one motor, greatly reduced the manufacturing cost of equipment and the power consumption when using, market competition is good, and the practicality is stronger.

In one embodiment, the storage box 16 is fixedly welded on the side wall of one side of the mounting frame 19, the lower hopper 34 is fixedly installed in the inner cavity of the storage box 16, the bottom end of the lower hopper 34 is communicated and connected with the filling pipe 33, the material conveying shaft 31 installed in the inner cavity of the storage box 16 is arranged above the filling pipe 33, the material conveying shaft 31 is fixedly provided with the material conveying screw 32, the top end of the material conveying shaft 31 is fixedly provided with the second driving wheel 30, the second rotating shaft 13 is fixedly provided with the first driving wheel 28, the driving belt 29 is sleeved between the first driving wheel 28 and the second driving wheel 30, the effect of effectively preventing the blocking of the powder at the pipe orifice of the filling pipe 33 is achieved, the consistency of the filling amount of the powder every time is ensured, and the practicability of the full-automatic capsule filling machine is further improved without independently installing an electric power driven arch breaking and metering mechanism.

In one embodiment, a first electric push rod 7 fixedly mounted on the top surface of the inner side of the mounting frame 19 is arranged above the third jack 22 on one side, and a push plate 25 is fixedly mounted on the movable end of the first electric push rod 7, so that the function of automatically closing capsules of the capsule particles is achieved.

In one embodiment, a positioning groove 26 is formed in one side of the first supporting table 2, a baffle 27 is mounted in the positioning groove 26 in a clamping manner, a second electric push rod 4 is fixedly mounted on the side wall of the mounting frame 19, one side of the baffle 27 is fixedly connected with the output end of the second electric push rod 4, and the automatic discharging effect of the capsule particles is achieved.

In one embodiment, the first gear 12, the second gear 14, and the third gear 8 are the same size, the first dial 10, the second dial 18, and the third dial 6 are the same size, and the first receptacle 20, the second receptacle 21, and the third receptacle 22 are the same size.

In one embodiment, a control panel is fixedly arranged on the side wall of the mounting frame 19, and the control panel is electrically connected with the stepping motor 3, the first electric push rod 7 and the second electric push rod 4, so that the automatic normal operation of the control equipment is realized.

In one embodiment, the top surface of the storage box 16 is connected with a material supplementing pipe 15 penetrating through a mounting frame 19 in a communicating manner, so as to supplement the powder into the inner cavity of the storage box 16.

Working principle: before use, a worker inserts the lower capsule shell into a first jack 20 uniformly arranged on the first rotary table 10, inserts the upper capsule shell into a third jack 22 arranged on the third rotary table 6, and when in use, the worker can start the stepping motor 3 arranged at the center of the bottom surface of the first supporting table 2 through a control panel to drive the first rotary shaft 11 to rotate, the first rotary table 10 is fixedly arranged on the first rotary shaft 11, the bottom surface of the first rotary table 10 is abutted against the top surface of the first supporting table 2, the first rotary table 10 can rotate with the first rotary shaft 11 in a same frequency step, and because the top end of the first rotary shaft 11 is fixedly provided with a first gear 12, the second rotary shaft 13 and the third rotary shaft 9 are symmetrically arranged on a mounting frame 19, one end of the second rotary shaft 13 is fixedly provided with a second gear 14, the third gear 8 is fixedly arranged at one end of the third rotating shaft 9, the first gear 12, the second gear 14 and the third gear 8 are mutually meshed, the sizes of the first gear 12, the second gear 14 and the third gear 8 are the same, so the first rotating shaft 11 can drive the second rotating shaft 13 and the third rotating shaft 9 to rotate in a same frequency step, the second rotating disc 18 which is abutted against the top surface of the second supporting table 17 is fixedly arranged on the second rotating shaft 13, the third rotating disc 6 which is abutted against the top surface of the third supporting table 5 is fixedly arranged on the third rotating shaft 9, the sizes of the first rotating disc 10, the second rotating disc 18 and the third rotating disc 6 are the same, the first rotating disc 10, the second rotating disc 18 and the third rotating disc 6 can realize the same frequency step rotation, and after the powder materials in the discharging box quantitatively fall into the second jack 21 arranged on the second rotating disc 18, the powder materials can move to the first through hole 23 along with the rotation of the second rotating disc 18, and falls into the lower capsule shell placed in the first jack 20 through the first through hole 23, the lower capsule shell filled with the powder can rotate along with the first rotary table 10 and move to the position right below the second through hole 24 formed on the third supporting table 5, at the moment, the control panel starts the first electric push rod 7 to push the push plate 25 to push the upper capsule shell in the third jack 22 out through the second through hole 24 to be combined with the lower capsule shell filled with the powder, after the capsule particles are obtained, the control panel starts the second electric push rod 4 to drive the baffle 27 to be extracted from the alignment groove 26 formed on the first supporting table 2, so that the capsule particles fall down for discharging, the capsule filling processing production of the capsule can be completed by using the collecting box to the capsule particles filled with the powder materials, then the first electric push rod 7 drives the push plate 25 to reset, the second electric push rod 4 drives the baffle 27 to reset, and the continuous automatic operation of capsule powder filling can be realized by repeating the steps, therefore, the full-automatic capsule filling machine can drive the three turntables to rotate in steps at the same frequency by using only one motor, the manufacturing cost of the equipment and the power consumption during use are greatly reduced, the market competitiveness is good, the practicability is stronger, in addition, the full-automatic capsule filling machine is provided with the second rotating shaft 13, the material conveying shaft 31 and the material conveying screw 32, as described above, medicinal powder materials in the material storage box 16 need to be filled into the second insertion holes 21 formed on the second turntables 18 through the filling pipes 33, the material conveying shaft 31 arranged in the material storage box 16 is arranged above the filling pipes 33, the material conveying screw 32 is fixedly arranged on the material conveying shaft, in addition, the transmission belt 29 is sleeved between the second transmission wheel 30 fixedly arranged at the top end of the material conveying shaft 31 and the first transmission wheel 28 fixedly arranged on the second rotating shaft 13, so that the material conveying shaft 31 can be driven to rotate in steps by a certain angle when the second rotating shaft 13 rotates in steps, the powder materials in the discharging hopper 34 can be quantitatively conveyed into the filling pipe 33 by utilizing the feeding screw 32 fixedly arranged on the conveying shaft 31, and the powder falls into the second insertion hole 21 through the filling pipe 33, so that the blocking of the powder at the pipe orifice of the filling pipe 33 can be effectively prevented, the filling quantity of the powder each time is ensured to be consistent, and the arch breaking and metering mechanism driven by electric power is not required to be independently arranged, so that the practicability of the full-automatic capsule filling machine is further improved.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (7)

1. The full-automatic capsule filling machine comprises a workbench (1), and is characterized in that an installation frame (19) is fixedly welded on the top surface of the workbench (1), a second rotating shaft (13) and a third rotating shaft (9) are symmetrically installed on the installation frame (19), a first supporting table (2) is fixedly installed in the center of the top surface of the workbench (1), a stepping motor (3) is installed on the bottom surface of the first supporting table (2), a first rotating shaft (11) is installed at the output end of the stepping motor (3) in a connection mode, a first gear (12) is fixedly installed on the top surface of the first rotating shaft (11) in a penetrating mode, a second gear (14) is fixedly installed on the top end of the second rotating shaft (13), a third gear (8) is fixedly installed on the top end of the third rotating shaft (9), the first gear (12) is meshed with the second gear (14) and the third gear (8), a first rotating disc (10) is fixedly installed on the first rotating shaft (11), the bottom surface of the first rotating shaft (11) is abutted to the top surface of the first supporting table (2), a first rotating shaft (17) is fixedly installed on one side of the second rotating shaft (17), a first rotating disc (17) is fixedly installed on one side of the second rotating shaft (17), a first rotating shaft (17) is fixedly installed on the second rotating shaft (17), and second carousel (18) bottom surface and second brace table (17) top surface looks butt, the fixed welding of mounting bracket (19) opposite side lateral wall has third brace table (5), and second through-hole (24) have been seted up to third brace table (5) one side, fixed mounting has third carousel (6) on third pivot (9), and third carousel (6) bottom surface and second brace table (17) top surface looks butt, a plurality of first jack (20) have evenly been seted up at first carousel (10) edge, a plurality of second jack (21) have evenly been seted up at second carousel (18) edge, a plurality of third jack (22) have evenly been seted up at third carousel (6) edge.

2. The full-automatic capsule filling machine according to claim 1, wherein a storage box (16) is fixedly welded on one side wall of the mounting frame (19), a discharging hopper (34) is fixedly installed in an inner cavity of the storage box (16), a filling pipe (33) is connected to the bottom end of the discharging hopper (34) in a communicating mode, a material conveying shaft (31) installed in the inner cavity of the storage box (16) is arranged above the filling pipe (33), a material conveying spiral (32) is fixedly installed on the material conveying shaft (31), a second driving wheel (30) is fixedly installed at the top end of the material conveying shaft (31), a first driving wheel (28) is fixedly installed on the second rotating shaft (13), and a driving belt (29) is sleeved between the first driving wheel (28) and the second driving wheel (30).

3. The full-automatic capsule filling machine according to claim 1, wherein a first electric push rod (7) fixedly installed on the inner top surface of the installation frame (19) is arranged above one side of the third insertion hole (22), and a push plate (25) is fixedly installed at the movable end of the first electric push rod (7).

4. The full-automatic capsule filling machine according to claim 1, wherein an alignment groove (26) is formed in one side of the first supporting table (2), a baffle (27) is mounted in the alignment groove (26) in a clamping manner, a second electric push rod (4) is fixedly mounted on the side wall of the mounting frame (19), and one side of the baffle (27) is fixedly connected with the output end of the second electric push rod (4).

5. The full-automatic capsule filling machine according to claim 1, wherein the first gear (12), the second gear (14) and the third gear (8) have the same size and specification, the first turntable (10), the second turntable (18) and the third turntable (6) have the same size and specification, and the first jack (20), the second jack (21) and the third jack (22) have the same size and specification.

6. The full-automatic capsule filling machine according to claim 1, wherein a control panel is fixedly mounted on the side wall of the mounting frame (19), and the control panel is electrically connected with the stepping motor (3), the first electric push rod (7) and the second electric push rod (4).

7. Full-automatic capsule filling machine according to claim 2, characterized in that the top surface of the storage tank (16) is connected in communication with a feed tube (15) penetrating the mounting frame (19).