Intelligent production device for hollow glass

Abstract

The invention provides an intelligent hollow glass production device which comprises a side plate, a plurality of edge machining grinding knives of different sizes are evenly arranged on the side wall of a machining treatment frame, and a plurality of first inclined water outlet pipes and second cleaning water outlet pipes are fixedly arranged at the output end of a water pump in a communicating mode. The two sides of the treatment box are fixedly connected with an air heater and a gas injection pump correspondingly, and an injection inclined frame is arranged on one side of the gas injection pump. The fixed seat moves through the first electric push rod between the connecting frames, the distance between the cutting knives can be adjusted, so that the cutting structure can be driven to rotate and cut glass in different directions and at different distances, and the size and size of hollow glass preparation are met; water outlet cleaning is conducted through the first inclined water outlet pipe and the second inclined water outlet pipe on the upper layer and the lower layer, glass is cleaned through cooperation of the cleaning roller and the cleaning brush between the first inclined water outlet pipe and the second inclined water outlet pipe, and after hollow glass is machined, the edge is fine, and cleaning is thorough.

Description

Technical Field

[0001] This invention relates to the field of technology, specifically to an intelligent production device for insulating glass. Background Technology

[0002] Insulating glass is made of two panes of glass bonded together with a high-strength, airtight composite adhesive to an aluminum alloy frame containing a desiccant. This provides effective support, even spacing, and a sealed perimeter, creating a dry gas space between the glass layers. This results in high-performance sound and heat insulation glass. The most crucial step in its production is cutting the glass. After cutting, it undergoes processing, followed by gas injection and heat curing to form a rough-finished insulating glass unit. Therefore, an intelligent production device for insulating glass is necessary.

[0003] When using intelligent production equipment for insulating glass, the existing technology uses fixed welding for cutting, which means it can only cut one size of glass. To produce glass of various sizes, multiple cutting machines are needed, which is less efficient than expected. Furthermore, the glass is directly processed after cutting, resulting in many rough edges, scraps, impurities, etc., and the cleanliness does not meet expectations, which affects the subsequent production results. Summary of the Invention

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides an intelligent production device for insulating glass, which solves the problem of only being able to cut glass of one size and the problem of directly processing the cut glass, which affects the subsequent production results.

[0005] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: an intelligent production device for insulating glass, comprising a side plate, a top plate, a housing, a processing rack, and a cleaning tank fixedly connected to one side of the side plate, the top plate, housing, processing rack, and cleaning tank arranged from top to bottom, a rotating plate provided at the lower end of the top plate, two cutting blades symmetrically arranged at the lower end of the rotating plate, a first rotating shaft fixedly connected to the upper end of the rotating plate, a first motor provided at the upper end of the first rotating shaft, the output end of the first motor fixedly connected to the upper end of the first rotating shaft, a plurality of edge processing and grinding blades of different sizes uniformly arranged on the side wall of the processing rack, a water pump fixedly connected to one side of the cleaning tank, a water tank fixedly connected to one side of the water pump, the output end of the water pump communicating with the inside of the cleaning tank, the input end of the water pump communicating with the inside of the water tank, a plurality of first inclined water outlet pipes and second cleaning water outlet pipes fixedly connected to the output end of the water pump, a processing tank provided on one side of the cleaning tank, a hot air blower and a gas injection pump fixedly connected to both sides of the processing tank, and an injection inclined frame provided on one side of the gas injection pump.

[0006] Preferably, a second rotating shaft is fixedly connected to one side of the cutting blade, a third motor is provided on one side of the second rotating shaft, the output end of the third motor is fixedly connected to one side of the second rotating shaft, a first movable seat is fixedly connected to the outside of the third motor, a second electric push rod is symmetrically fixedly connected to the upper end of the first movable seat, a fixed seat is fixedly connected to the second electric push rod, a slide rod is slidably connected between the fixed seats, a connecting frame is fixedly connected to the outside of the slide rod, the connecting frame is disposed between the fixed seats, a movable plate is fixedly connected to the upper end of the connecting frame, a first electric push rod is symmetrically fixedly connected to both sides of the connecting frame, one side of the first electric push rod is fixedly connected to one side of the fixed seat, a movable block is fixedly connected to the upper end of the movable plate, a lead screw is threadedly connected to the inner side of the movable block, a second motor and a bearing are respectively provided on both sides of the lead screw, the output end of the second motor is fixedly connected to one side of the lead screw, a housing is installed on the outside of the lead screw, and the housing is fixedly connected to the lower end of the rotating plate.

[0007] Preferably, two sets of anti-slip hook frames are symmetrically arranged on the inner side of the box, with two frames in each set. A collection groove is provided on the inner side of the anti-slip hook frames, and the side walls of the anti-slip hook frames are fixedly connected to the inner wall of the box.

[0008] Preferably, one side of the edge processing grinding knife is fixedly connected with a fourth rotating shaft, one side of the fourth rotating shaft is provided with a fourth motor, the output end of the fourth motor is fixedly connected with one side of the fourth rotating shaft, the side wall of the fourth motor is fixedly connected to the inner wall of the processing handle, the inner side of the processing handle is symmetrically provided with two groups of sliding balls, the two sides of the sliding ball are symmetrically fixedly connected with two third rotating shafts, the outer side of the third rotating shaft is rotatably connected with a bearing seat, the bearing seat is fixedly connected to the inner wall of the processing handle, one side of the sliding ball is provided with a buffer plate, the buffer plate is symmetrically fixedly connected with two buffer springs on one side, the buffer spring is fixedly connected with a mounting plate on one side, and the lower end of the mounting plate is fixedly connected to the upper end of the processing handle.

[0009] Preferably, the cleaning box is provided with a first locking frame on the side wall in a threaded connection manner, the inner wall of the cleaning box is symmetrically provided with two sliding grooves, the inner side of the sliding groove is provided with a third electric push rod, one side of the third electric push rod is fixedly connected to the inside of the cleaning box, the other side of the third electric push rod is fixedly connected with a second moving seat, one side of the second moving seat is fixedly connected with a fifth motor, one side of the fifth motor is provided with a fifth rotating shaft, the output end of the fifth motor is fixedly connected with one side of the fifth rotating shaft, one side of the fifth rotating shaft is fixedly connected with a cleaning roller, and the outer side of the cleaning roller is fixedly connected with a plurality of cleaning brushes.

[0010] Preferably, the processing box is provided with a second locking frame in a threaded connection manner on the upper end.

[0011] Preferably, the injection inclined frame is fixedly and communicatively provided with an extension frame on one side, the extension frame is fixedly and communicatively connected with the output end of the gas injection pump on one side, the two sides of the injection inclined frame are symmetrically provided with two fourth electric push rods, one side of the fourth electric push rod is fixedly connected with a fixed block, one side of the fixed block is fixedly connected to the side wall of the injection inclined frame, and the other side of the fourth electric push rod is fixedly connected to the inner wall of the processing box.

[0012] Preferably, the edge processing grinding knife is provided with a protective plate on the upper end, and the protective plate is fixedly connected to the inner wall of the processing handle.

[0013] (Three) beneficial effects The application provides a hollow glass intelligent production device. The application has the following beneficial effects: 1、The glass is placed on the processing support frame, and the upper side of the glass is symmetrically provided with two cutting knives, one side of the cutting knife is provided with a third motor, the outer side of the third motor is fixedly connected with a first moving seat, the upper end of the first moving seat is fixedly connected with two second electric push rods in a symmetrical manner, the upper end of the second electric push rod is fixedly connected with a fixed seat, the fixed seat moves through the first electric push rod between the connecting frames, so that the distance between the cutting knives can be adjusted, a moving plate is arranged on the upper end of the connecting frame, a lead screw structure is arranged on the upper end of the moving plate, a rotating plate is arranged on the upper side of the lead screw structure, a first motor is arranged on the upper end of the rotating plate, so that the cutting structure can be driven to rotate and cut the glass to different distances in different directions, so that the size and size of the hollow glass preparation can be met.

[0014] 2、The processing handle frame is symmetrically provided with two sliding balls, the sliding ball is provided with a buffer plate structure, so that in the process of stable pushing, the edge processing and grinding knife on the other side is rotated, so that the glass edge after cutting can be finely ground by various grinding knives, and after grinding treatment, it is put into the cleaning box, and the water is discharged and cleaned through the first inclined water outlet pipe and the second inclined water outlet pipe on the upper and lower layers, and the first inclined water outlet pipe and the second inclined water outlet pipe are matched with the cleaning roller and the cleaning brush to clean the glass, so that the edge of the hollow glass after processing is very fine and clean. DRAWINGS

[0015] Figure 1 It is the perspective view of the application; Figure 2 It is the internal structure diagram of the cleaning box of the application; Figure 3 It is the Figure 2 enlarged view of A in the application; Figure 4 It is the internal structure diagram of the processing handle frame of the application; Figure 5 It is the structure diagram of the edge processing and grinding knife of the application; Figure 6 It is the structure diagram of the gas injection pump on one side of the injection inclined frame of the application; Figure 7 It is the structure diagram between the rotating plate and the moving seat of the application; Figure 8 It is the structure diagram of the shell inside.

[0016] Wherein, 1, side plate; 2, top plate; 3, rotating plate; 4, first motor; 5, first rotating shaft; 6, shell; 7, lead screw; 8, moving block; 9, second motor; 10, bearing; 11, moving plate; 12, connecting frame; 13, first electric push rod; 14, sliding rod; 15, fixed seat; 16, second electric push rod; 17, first moving seat; 18, third motor; 19, second rotating shaft; 20, cutting knife; 21, anti-skid hook frame; 22, collection groove; 23, box; 24, processing frame; 25, mounting plate; 26, buffer plate; 27, buffer spring; 28, sliding ball; 29, third rotating shaft; 30, bearing seat; 31, edge processing and polishing knife; 32, guard plate; 33, fourth rotating shaft; 34, fourth motor; 35, cleaning tank; 36, water tank; 37, water pump; 38, first inclined water outlet pipe; 39, second cleaning water outlet pipe; 40, cleaning roller; 41, cleaning brush; 42, fifth rotating shaft; 43, fifth motor; 44, third electric push rod; 45, sliding groove; 46, second moving seat; 47, processing box; 48, first locking frame; 49, second locking frame; 50, hot air machine; 51, gas injection pump; 52, telescopic frame; 53, fourth electric push rod; 54, fixed block; 55, injection inclined frame; 56, processing support frame. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0018] Embodiment: As Figures 1-8As shown, the embodiment of the present application provides a hollow glass intelligent production device, which comprises a side plate 1, one side of the side plate 1 is respectively fixedly connected with a top plate 2, a box body 23, a processing and handling frame 24 and a cleaning box 35, the top plate 2, the box body 23, the processing and handling frame 24 and the cleaning box 35 are arranged from top to bottom, a rotating plate 3 is arranged at the lower end of the top plate 2, two cutting knives 20 are symmetrically arranged at the lower end of the rotating plate 3, a first rotating shaft 5 is fixedly connected with the upper end of the rotating plate 3, a first motor 4 is arranged at the upper end of the first rotating shaft 5, the first motor 4 drives the rotating plate 3 to rotate, the output end of the first motor 4 is fixedly connected with the upper end of the first rotating shaft 5, a plurality of edge processing and polishing knives 31 of different sizes are uniformly arranged on the side wall of the processing and handling frame 24, the edge processing and polishing knives 31 are used for polishing debris, the cleaning box 35 is fixedly connected with a water pump 37 on one side, the water pump 37 is controlled by a power supply and is used for pumping water, the water pump 37 is fixedly connected with a water tank 36 on one side, the water tank 36 is replenished by an external method, the output end of the water pump 37 is communicated with the inner side of the cleaning box 35, the input end of the water pump 37 is communicated with the inner side of the water tank 36, a plurality of first inclined water outlet pipes 38 and second cleaning water outlet pipes 39 are fixedly and communicatively arranged at the output end of the water pump 37, the first inclined water outlet pipes 38 and the second cleaning water outlet pipes 39 are respectively used for cleaning the upper side and the lower side of the glass, a processing box 47 is arranged on one side of the cleaning box 35, a hot air blower 50 and a gas injection pump 51 are respectively fixedly connected with the two sides of the processing box 47, the hot air blower 50 is controlled by a power supply and is used for blowing hot air, the gas injection pump 51 is a prior art structure and can inject air or inert gas, an injection inclined frame 55 is arranged on one side of the gas injection pump 51.

[0019] The second rotating shaft 19 is fixedly connected with one side of the cutting knife 20, and the third motor 18 is arranged on one side of the second rotating shaft 19. The third motor 18 drives the cutting knife 20 to rotate. The output end of the third motor 18 is fixedly connected with one side of the second rotating shaft 19. The first moving seat 17 is fixedly connected with the outer side of the third motor 18. The second electric push rod 16 is symmetrically fixedly connected with the upper end of the first moving seat 17. The second electric push rod 16 is a prior art structure that provides power through an internal motor. The fixed seat 15 is fixedly connected with the second electric push rod 16. The sliding rod 14 is slidably connected between the fixed seats 15. The sliding rod 14 enables the fixed seats 15 to slide on the outer side. The connecting frame 12 is fixedly connected with the outer side of the sliding rod 14. The connecting frame 12 is arranged between the fixed seats 15. The moving plate 11 is fixedly connected with the upper end of the connecting frame 12. The first electric push rod 13 is symmetrically fixedly connected with the two sides of the connecting frame 12. The first electric push rod 13 is a prior art structure that provides power through an internal motor. One side of the first electric push rod 13 is fixedly connected with one side of the fixed seat 15. The moving block 8 is fixedly connected with the upper end of the moving plate 11. The lead screw 7 is threadedly connected with the inner side of the moving block 8. The second motor 9 and the bearing 10 are arranged on the two sides of the lead screw 7. The output end of the second motor 9 is fixedly connected with one side of the lead screw 7. The second motor 9 drives the lead screw 7 to rotate. The bearing 10 enables the lead screw 7 to rotate in the interior and has a limiting effect. The housing 6 is arranged on the outer side of the lead screw 7. The housing 6 is fixedly connected with the lower end of the rotating plate 3.

[0020] The two groups of anti-skid hook type frames 21 are symmetrically arranged in the inner side of the box body 23, and each group has two anti-skid hook type frames 21. The anti-skid hook type frame 21 is provided with a collection groove 22 in the inner side. The collection groove 22 can collect debris. The side walls of the anti-skid hook type frames 21 are fixedly connected with the inner walls of the box body 23.

[0021] The fourth rotating shaft 33 is fixedly connected with one side of the edge processing and polishing knife 31. The fourth motor 34 is arranged on one side of the fourth rotating shaft 33. The fourth motor 34 drives the edge processing and polishing knife 31 to rotate. The output end of the fourth motor 34 is fixedly connected with one side of the fourth rotating shaft 33. The side wall of the fourth motor 34 is fixedly connected with the inner wall of the processing and handling frame 24. Two groups of sliding balls 28 are symmetrically arranged in the inner side of the processing and handling frame 24. The sliding ball 28 can rotate in the inner side of the bearing seat 30. Two third rotating shafts 29 are symmetrically fixedly connected with the two sides of the sliding ball 28. The bearing seat 30 is rotatably connected with the outer side of the third rotating shaft 29. The bearing seat 30 is fixedly connected with the inner wall of the processing and handling frame 24. The buffer plate 26 is arranged on one side of the sliding ball 28. Two buffer springs 27 are symmetrically fixedly connected with one side of the buffer plate 26. The mounting plate 25 is fixedly connected with one side of the buffer spring 27. The mounting plate 25 is fixedly connected with the upper end of the processing and handling frame 24.

[0022] The first locking frame 48 is threadedly connected to the side wall of the cleaning box 35. Two sliding grooves 45 are symmetrically arranged on the inner wall of the cleaning box 35. The third electric push rod 44 is arranged on the inner side of the sliding groove 45. The third electric push rod 44 is a prior art structure, and the power is provided by an internal motor. One side of the third electric push rod 44 is fixedly connected to the inner part of the cleaning box 35. The other side of the third electric push rod 44 is fixedly connected with the second moving seat 46. The fifth motor 43 is fixedly connected to one side of the second moving seat 46. The fifth motor 43 drives the cleaning roller 40 and the cleaning brush 41 to rotate. The fifth motor 43 is provided with the fifth rotating shaft 42 on one side. The output end of the fifth motor 43 is fixedly connected to one side of the fifth rotating shaft 42. The fifth rotating shaft 42 is fixedly connected with the cleaning roller 40 on one side. A plurality of cleaning brushes 41 are fixedly connected to the outer side of the cleaning roller 40.

[0023] The second locking frame 49 is threadedly connected to the upper end of the processing box 47.

[0024] The telescopic frame 52 is fixedly arranged on one side of the injection inclined frame 55 and is in communication. The telescopic frame 52 is pushed to move the injection inclined frame 55 in cooperation with the fourth electric push rod 53. The telescopic frame 52 is fixedly connected to the output end of the gas injection pump 51 on one side and is in communication. Two fourth electric push rods 53 are symmetrically arranged on both sides of the injection inclined frame 55. The fourth electric push rod 53 is a prior art structure, and the power is provided by an internal motor. The fourth electric push rod 53 is fixedly connected with the fixed block 54 on one side. The fixed block 54 is fixedly connected to the side wall of the injection inclined frame 55 on one side. The fourth electric push rod 53 is fixedly connected to the inner wall of the processing box 47 on the other side.

[0025] The protective plate 32 is arranged on the upper end of the edge processing and polishing knife 31 and is fixedly connected to the inner wall of the processing and handling frame 24.

[0026] Working principle: first, the glass is placed on the upper end of the processing support frame 56. The first motor 4, the screw rod 7 structure, the sliding rod 14, the first electric push rod 13, the third motor 18 and the cutting knife 20 structure can cut the glass of different sizes. After cutting, it is placed in the processing and handling frame 24. The sliding ball 28 is pushed to move on the upper end. A plurality of edge processing and polishing knives 31 of different sizes on one side are finely polished. After processing, it is placed in the cleaning box 35. The water pump 37 and the cleaning brush 41 structure are used for cleaning. After cleaning, the two glasses are placed in the processing box 47. The gas is injected by the gas injection pump 51 on one side. Finally, the hot air blower 50 is used for heating and solidification.

[0027] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application. The scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A hollow glass intelligent production device, comprising a side plate (1), characterized in that: The side plate (1) is respectively fixedly connected with a top plate (2), a box (23), a processing rack (24), and a cleaning box (35) on one side, the top plate (2), the box (23), the processing rack (24), and the cleaning box (35) are arranged from top to bottom, the top plate (2) is provided with a rotating plate (3) at the lower end, the rotating plate (3) is provided with two cutting knives (20) symmetrically at the lower end, the rotating plate (3) is fixedly connected with a first rotating shaft (5) at the upper end, the first rotating shaft (5) is provided with a first motor (4) at the upper end, the first motor (4) is fixedly connected with the first rotating shaft (5) at the output end, the processing rack (24) is uniformly provided with a plurality of edge processing and polishing knives (31) of different sizes on the side wall, the cleaning box (35) is fixedly connected with a water pump (37) on one side, the water pump (37) is fixedly connected with a water tank (36) on one side, the water pump (37) is communicated with the inside of the cleaning box (35) at the output end, the water pump (37) is communicated with the inside of the water tank (36) at the input end, the water pump (37) is fixedly and continuously provided with a plurality of first inclined water outlet pipes (38) and second cleaning water outlet pipes (39) at the output end, the cleaning box (35) is provided with a treatment box (47) on one side, the treatment box (47) is fixedly connected with a hot air blower (50) and a gas injection pump (51) on both sides, respectively, the gas injection pump (51) is provided with an injection inclined frame (55) on one side.

2. The hollow glass intelligent production device according to claim 1, characterized in that: The cutting knife (20) is fixedly connected with a second rotating shaft (19) on one side, the second rotating shaft (19) is provided with a third motor (18) on one side, the third motor (18) is fixedly connected with the second rotating shaft (19) at the output end, the third motor (18) is fixedly connected with a first moving seat (17) on the outside, the first moving seat (17) is fixedly connected with a second electric push rod (16) symmetrically at the upper end, the second electric push rod (16) is fixedly connected with a fixed seat (15) on the side of Shanduo Anu, the fixed seat (15) is slidably connected with a sliding rod (14) between them, the sliding rod (14) is fixedly connected with a connecting frame (12) on the outside, the connecting frame (12) is arranged between the fixed seat (15), the connecting frame (12) is fixedly connected with a moving plate (11) at the upper end, the connecting frame (12) is fixedly connected with a first electric push rod (13) symmetrically on both sides, the first electric push rod (13) is fixedly connected to one side of the fixed seat (15) on one side, the moving plate (11) is fixedly connected with a moving block (8) at the upper end, the moving block (8) is threadedly connected with a lead screw (7) on the inside, the lead screw (7) is provided with a second motor (9) and a bearing (10) on both sides, respectively, the second motor (9) is fixedly connected with the lead screw (7) at the output end, the lead screw (7) is mounted with a housing (6) on the outside, and the housing (6) is fixedly connected to the lower end of the rotating plate (3).

3. The hollow glass intelligent production device according to claim 1, characterized in that: The box (23) is symmetrically provided with two groups of anti-skid hook type frames (21) on the inside, and each group has two, the anti-skid hook type frame (21) is provided with a collecting groove (22) on the inside, and the anti-skid hook type frame (21) is fixedly connected to the inner wall of the box (23) on the side wall.

4. The hollow glass intelligent production device according to claim 1, characterized in that: The edge processing grinding knife (31) is fixedly connected with a fourth rotating shaft (33) on one side, the fourth rotating shaft (33) is provided with a fourth motor (34) on one side, the fourth motor (34) is fixedly connected with the fourth rotating shaft (33) on one side, the fourth motor (34) is fixedly connected to the inner wall of the processing rack (24), two groups of sliding balls (28) are symmetrically arranged on the inner side of the processing rack (24), two third rotating shafts (29) are fixedly connected on both sides of the sliding ball (28), a bearing seat (30) is rotatably connected to the outer side of the third rotating shaft (29), the bearing seat (30) is fixedly connected to the inner wall of the processing rack (24), a buffer plate (26) is arranged on one side of the sliding ball (28), two buffer springs (27) are fixedly connected on one side of the buffer plate (26), an installation plate (25) is fixedly connected on one side of the buffer spring (27), and the installation plate (25) is fixedly connected to the upper end of the processing rack (24).

5. The hollow glass intelligent production device according to claim 1, characterized in that: The cleaning box (35) is threadedly connected with a first locking frame (48) on the side wall, two sliding grooves (45) are symmetrically arranged on the inner wall of the cleaning box (35), a third electric push rod (44) is arranged in the sliding groove (45), the third electric push rod (44) is fixedly connected to the inside of the cleaning box (35) on one side, a second moving seat (46) is fixedly connected to the other side of the third electric push rod (44), a fifth motor (43) is fixedly connected to one side of the second moving seat (46), a fifth rotating shaft (42) is arranged on one side of the fifth motor (43), the output end of the fifth motor (43) is fixedly connected with the fifth rotating shaft (42) on one side, a cleaning roller (40) is fixedly connected to one side of the fifth rotating shaft (42), and a plurality of cleaning brushes (41) are fixedly connected to the outer side of the cleaning roller (40).

6. The hollow glass intelligent production device according to claim 1, characterized in that: The processing box (47) is threadedly connected with a second locking frame (49) on the upper end.

7. The hollow glass intelligent production device according to claim 1, characterized in that: The injection inclined frame (55) is fixedly and communicatively provided with an extension frame (52) on one side, the extension frame (52) is fixedly and communicatively connected with the output end of the gas injection pump (51) on one side, two fourth electric push rods (53) are symmetrically arranged on both sides of the injection inclined frame (55), a fixed block (54) is fixedly connected to one side of the fourth electric push rod (53), the fixed block (54) is fixedly connected to the side wall of the injection inclined frame (55), and the fourth electric push rod (53) is fixedly connected to the inner wall of the processing box (47).

8. The hollow glass intelligent production device according to claim 1, characterized in that: The edge processing grinding knife (31) is provided with a protective plate (32) on the upper end, and the protective plate (32) is fixedly connected to the inner wall of the processing rack (24).

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