Bag holding and pushing device for automatic solid caustic soda packaging

Abstract

The utility model discloses an automatic solid caustic soda packaging bag-holding pushing device which comprises a machine base, a driving mechanism is arranged at the bottom of the machine base, opening and closing mechanisms are movably installed at the two ends of the top of the machine base respectively, the two opening and closing mechanisms are both connected with the driving mechanism, and support bottom plates are arranged at the tops of the two opening and closing mechanisms. Bag holding clamping plates which are opposite and perpendicular to the ground are arranged on one sides of the two support bottom plates, cross beams are fixedly connected to the upper surfaces of the two support bottom plates, clamping opening supports are perpendicularly connected to the two ends of each cross beam in a clamped mode, a bag suction frame is fixed to the top of each clamping opening support, and a bag clamping plate is fixedly connected to each bag suction frame. The automatic bag clamping, exhausting, bag holding and opening clamping work in the solid caustic soda packaging process can be achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of solid alkali packaging, and in particular relates to a solid alkali automatic packaging bag holding and pushing device. Background Art

[0002] At present, semi-automatic packaging machines are used in the packaging and transportation process of solid alkali finished products, and the bags are transported to the sewing machine for sewing. The sealing personnel must first manually arrange the inner bag and tie it, then press the inner bag into the outer bag, arrange the outer bag and send it to the sewing machine. The personnel need to be exposed to the solid alkali dust during work. This transportation and sewing method may expose personnel to the solid alkali dust for a long time, and there is a risk of occupational hazards and injuries during the operation.

[0003] For technicians in this field, how to improve automation and avoid exposure of personnel to solid alkali dust is a technical problem that needs to be solved at present. Utility Model Content

[0004] The utility model aims to provide a solid alkali automatic packaging bag holding and pushing device, which solves the technical problem that the prior art cannot realize automatic bag holding and bag clamping.

[0005] The technical solution adopted by the utility model is an automatic packaging bag holding and pushing device for solid alkali, comprising a machine base, a driving mechanism is provided at the bottom of the machine base, opening and closing mechanisms are movably installed at both ends of the top of the machine base, the two opening and closing mechanisms are connected to the driving mechanism, the tops of the two opening and closing mechanisms are provided with bracket bottom plates, one side of the two bracket bottom plates are provided with bag holding clamps facing each other and perpendicular to the ground, the upper surfaces of the two bracket bottom plates are fixedly connected with cross beams, both ends of each cross beam are vertically clamped with clamping brackets, the top of each clamping bracket is fixed with a bag suction rack, and each bag suction rack is fixed with a bag clamping plate.

[0006] The utility model is also characterized in that:

[0007] The machine base includes a bottom plate with a rectangular cross-section. Side plates are vertically fixed to the corresponding sides of the upper surface of the bottom plate. The side plates are in a "concave" shape. Both ends of each side plate are connected to the opening and closing mechanism, and a transmission mechanism is installed on both sides of the groove of each side plate.

[0008] The transmission mechanism comprises a column, which is fixed on the side plate in a vertical direction, and rollers are fixedly connected to both ends of the column.

[0009] The opening and closing mechanism includes two relatively arranged connecting rod mechanisms, and the connecting rod mechanisms include a first connecting rod and a second connecting rod arranged from the inside to the outside, and the first connecting rod and the second connecting rod are arranged in parallel. One end of the two first connecting rods are connected by a first pin shaft, and the other end of the two first connecting rods are connected by a second pin shaft. One end of the two second connecting rods is connected by the first pin shaft, and the other end of the two second connecting rods is connected by the second pin shaft. The two first pin shafts both horizontally penetrate the bottom plate of the bracket, and the two second pin shafts are connected to the side plate through bearings. Extension rods are provided at one end of the two first connecting rods located on the side plate, and the extension rods are connected to the driving mechanism through a fisheye joint.

[0010] The driving mechanism includes a main shaft, which is connected to the side plates through bearings. The main shaft is arranged between the two side plates. A single arm is fixedly connected to the middle of the main shaft. Double swing arms are sleeved on both ends of the main shaft. One end of a forward and reverse screw is fixedly connected to the two ends of each double swing arm. The other end of each forward and reverse screw is connected to an extension rod.

[0011] The utility model also comprises a cylinder, which is connected with the base plate through a bearing seat, and a cylinder rod of the cylinder is connected with the single arm.

[0012] A clip is arranged on the clamp bracket.

[0013] A bag holding bracket is fixedly connected to the lower surface of the bracket bottom plate, and the bag holding bracket is fixedly connected to the bag holding splint.

[0014] A bag clamping buffer is installed on the bag suction rack.

[0015] The beneficial effects of the utility model are:

[0016] 1. The utility model of the automatic packaging bag holding and pushing device for solid alkali is provided with a driving mechanism and an opening and closing mechanism, so that the movement of the cylinder drives the movement of the connecting rod, thereby realizing automatic bag clamping, exhausting, bag holding and clamping in the packaging process;

[0017] 2. The utility model realizes automatic transportation of solid alkali by setting a transmission mechanism, thereby improving the level of automation control. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is the front view of the automatic packaging bag holding and pushing device for solid alkali of the utility model;

[0019] Figure 2 It is a side view of the automatic packaging bag holding and pushing device for solid alkali of the utility model;

[0020] Figure 3 It is an attached view of the automatic packaging bag holding and pushing device for solid alkali of the utility model.

[0021] In the figure, 1. machine base, 101. bottom plate, 102. side plate, 2. roller, 3. clamp bracket, 4. single arm, 5. first pin shaft, 6. main shaft, 7. second pin shaft, 8. bag holding splint, 9. first connecting rod, 10. bracket bottom plate, 11. second connecting rod, 12. bag holding bracket, 13. forward and reverse screw rods, 14. double swing arm, 15. extension rod, 16. opening and closing mechanism, 17. clip, 18. bag clamping plate, 19. bag suction frame, 20. column, 21. crossbeam, 22. cylinder, 23. bearing, 24. fisheye joint, 25. driving mechanism, 26. bag clamping buffer. DETAILED DESCRIPTION

[0022] The utility model is described in detail below with reference to the accompanying drawings and specific implementation modes.

[0023] The utility model is a solid alkali automatic packaging bag holding and pushing device, such as Figure 1 As shown, it includes a machine base 1, which is composed of a bottom plate 101 with a rectangular cross-section and two "concave"-shaped side plates 102. The two side plates 102 are vertically arranged on the two corresponding sides of the upper surface of the bottom plate 101, and a transmission mechanism is installed on both sides of the groove of each side plate 102. The transmission mechanism includes a column 20, and the column 20 is fixed to the side plate 102 in the vertical direction. The two ends of the column 20 are respectively fixed with rollers 2. The two ends of the top of the machine base 1 are respectively movably installed with an opening and closing mechanism 16. The bottom of the machine base 1 is provided with a driving mechanism 25. The two opening and closing mechanisms 16 are connected to the driving mechanism 25. The opening and closing mechanism 16 includes two connecting rod mechanisms that are relatively arranged. The connecting rod mechanism is a parallelogram structure. The connecting rod mechanism includes a first connecting rod 9 and a second connecting rod 11 that are arranged from the inside to the outside. The first connecting rod 9 and the second connecting rod 11 are arranged in parallel. The first connecting rod 9 and the second connecting rod 11 form a The two first connecting rods 9 are connected at one end through the first pin 5, and the other end of the two first connecting rods 9 is connected through the second pin 7. The two second connecting rods 11 are connected at one end through the first pin 5, and the other end of the two second connecting rods 11 is connected through the second pin 7. The two first pins 5 horizontally penetrate the bracket bottom plate 10 to form the top side of the parallelogram. The two second pins 7 are connected to the side plate 102 through bearings 23 to form the bottom side of the parallelogram. The second pin 7 is arranged between the two side plates 102. The two first connecting rods 9 are located at one end of the side plate 102. The extension rod 15 is connected to the driving mechanism 25 through a fisheye joint 24. The driving mechanism 25 includes a main shaft 6, which is connected to the side plate 102 through a bearing 23. The main shaft 6 is arranged between the two side plates 102, and a single arm 4 is fixedly connected to the middle of the main shaft 6. Figure 3As shown, both ends of the main shaft 6 are sleeved with double swing arms 14, and both ends of each double swing arm 14 are respectively fixed with one end of the forward and reverse screw 13, and the other end of each forward and reverse screw 13 is connected to the extension rod 15, and also includes a cylinder 22, and the cylinder 22 is connected to the bottom plate 101 through a bearing seat, and the cylinder rod of the cylinder 22 is connected to the single arm 4, and the tops of the two opening and closing mechanisms 16 are provided with bracket bottom plates 10, and the lower surfaces of the two bracket bottom plates 10 are fixed with bag holding brackets 12, and the two bag holding brackets The frames 12 are each provided with bag holding clamps 8 facing each other and perpendicular to the ground, the upper surfaces of the two bracket bottom plates 10 are fixedly connected with cross beams 21, the cross beams 21 are arranged parallel to the first pin shaft 5 and the second pin shaft 7, both ends of each cross beam 21 are vertically clamped with a clamping bracket 3, the clamping bracket 3 is provided with a clip 17, a bag suction frame 19 is fixed on the top of each clamping bracket 3, a bag clamping plate 18 is fixed to each bag suction frame 19, and a bag clamping buffer 26 is also installed on the bag suction frame 19.

[0024] The lower surfaces of the two bracket bottom plates 10 are fixedly connected with bag holding brackets 12, and the two bag holding brackets 12 are provided with bag holding clamps 8 facing each other and perpendicular to the ground. The upper surfaces of the two bracket bottom plates 10 are fixedly connected with crossbeams 21, and both ends of each crossbeam 21 are vertically clamped with clamp brackets 3, and clamp brackets 3 are provided with clips 17. A bag suction rack 19 is fixed on the top of each clamp bracket 3, and a bag clamping plate 18 is fixed on each bag suction rack 19. The height of the clamp bracket 3 can be adjusted to thereby adjust the height of the bag clamping plate 18. After the bag plate 18 is adjusted to an appropriate height, the position of the clamp bracket 3 can be fixed by the clip 17; an opening and closing mechanism 16 is provided between the bracket bottom plate 10 and the machine base 1, and a driving mechanism 25 is provided at the bottom of the machine base. The driving mechanism 25 drives the opening and closing mechanism 16 to move, so that the two bracket bottom plates 10 can move toward or away from each other, thereby driving the bag holding clamp plate 8 and the bag clamp plate 18 to move toward or away from each other. When moving toward each other, the bag holding clamp plate 8 holds the bag body while the bag clamp plate 18 clamps the bag mouth to prevent spillage; the main shaft 6 is provided at Between the two side plates 102, a single arm 4 is fixedly connected to the middle of the main shaft 6, and double swing arms 14 are sleeved at both ends of the main shaft 6. One end of the forward and reverse screw rod 13 is fixedly connected to each end of each double swing arm 14, and the other end of each forward and reverse screw rod 13 is connected to the extension rod 15. The cylinder rod of the cylinder 22 is connected to the single arm 4. When the cylinder rod of the cylinder 22 is extended, the single arm 4 pulls the main shaft 6 to rotate, so that the double swing arms 14 fixed on both sides of the main shaft 6 rotate around the main shaft 6, and the double swing arms 14 pull the forward and reverse screw rods 13 to rotate. The reverse movement drives the first connecting rods 9 on both sides to move along the direction of the main shaft 6 with the bearings 23 as fulcrums. During the movement of the first connecting rod 9, the second connecting rod 11 is driven to move in the same direction with the bearings 23 as fulcrums, thereby driving the bracket base plate 10 to move along the direction of the main shaft 6, so that the bag holding clamp 8 installed on the bracket base plate 10 moves toward the direction of the main shaft 6, thereby realizing the exhaust and clamping of the flake caustic soda bags, and driving the bag clamping plates 18 on the bag suction frames 19 on both sides to close, thereby realizing the shaping and fixation of the flake caustic soda bag openings.

[0025] During operation, the utility model is installed on the chain plate, the roller 2 is installed on the chain plate guide rail, and the transmission mechanism is connected to the cylinder under the chain plate to realize the stable push-pull movement of the solid alkali automatic packaging bag holding and pushing device of the utility model; when the goods are filled, the bottom of the bag is placed on the chain plate, and after the filling is completed, the two bracket bottom plates 10 move toward each other, and the two bag holding splints 8 hold the bag body tightly, and then the cylinder under the chain plate pushes the transmission mechanism to move along the chain plate track, the transmission mechanism drives the machine base 1 to move, and the machine base 1 drives the opening and closing mechanism 16 and the bracket bottom plate 10 to move, and the two bag holding splints 8 clamp the bag to slide on the chain plate until the bag leaves the chain plate, and then the two bag holding splints 8 open, and the pocket falls.

[0026] During operation, when the initial position of the cylinder 22 is in a natural state and the cylinder rod of the cylinder 22 is extended, the cylinder rod pulls the main shaft 6 to rotate through the single arm 4, thereby causing the double swing arms 14 fixed on both sides of the main shaft 6 to rotate around the main shaft 6, and the double swing arms 14 pull the forward and reverse screws 13 to move in the opposite direction, driving the first connecting rods 9 on both sides to move along the direction of the main shaft 6 with the bearing 23 as the fulcrum. During the movement of the first connecting rod 9, the second connecting rod 11 is driven to move in the same direction with the bearing 23 as the fulcrum, thereby driving the bracket base plate 10 to move along the direction of the main shaft 6, so that the bag holding splint 8 installed on the bracket base plate 10 moves toward the direction of the main shaft 6, and the two bag packing splints 8 are brought together to realize the exhaust and clamping of the flake caustic soda bag, driving the bag clamping plates 18 on the bag suction racks 19 on both sides to close, and realizing the shaping and fixation of the flake caustic soda bag opening. Compared with traditional semi-automatic packaging machines, the automatic solid alkali packaging bag holding and pushing device effectively reduces the number of cylinders used, reduces equipment failures caused by alkali dust corrosion, avoids manual assisted sewing and personnel exposure to solid alkali dust, and improves the level of automation control.

[0027] Example 1

[0028] It includes a machine base 1, a driving mechanism 25 is provided at the bottom of the machine base 1, and opening and closing mechanisms 16 are movably installed at both ends of the top of the machine base 1, and the two opening and closing mechanisms 16 are connected to the driving mechanism 25. A bracket bottom plate 10 is provided on the top of the two opening and closing mechanisms 16, and one side of the two bracket bottom plates 10 is provided with bag holding clamps 8 facing each other and perpendicular to the ground. The upper surfaces of the two bracket bottom plates 10 are fixedly connected with cross beams 21, and both ends of each cross beam 21 are vertically clamped with clamping brackets 3, and a bag suction frame 19 is fixed on the top of each clamping bracket 3, and a bag suction frame 19 is fixed with a bag clamping plate 18. The machine base 1 includes a bottom plate 101, and the cross section of the bottom plate 101 is rectangular. Side plates 102 are vertically fixed on the corresponding sides of the upper surface of the bottom plate 101, and the side plates 102 are "concave" shaped. Both ends of each side plate 102 are connected to the opening and closing mechanism 16, and both sides of the groove of each side plate 102 are installed with a conveying mechanism.

[0029] Example 2

[0030] The machine base 1 comprises a machine base 1, a driving mechanism 25 is provided at the bottom of the machine base 1, opening and closing mechanisms 16 are movably installed at the two ends of the top of the machine base 1, the two opening and closing mechanisms 16 are connected to the driving mechanism 25, the tops of the two opening and closing mechanisms 16 are provided with a bracket bottom plate 10, one side of the two bracket bottom plates 10 are provided with bag holding clamps 8 facing each other and perpendicular to the ground, the upper surfaces of the two bracket bottom plates 10 are fixedly connected with beams 21, the two ends of each beam 21 are vertically clamped with a clamping bracket 3, the top of each clamping bracket 3 is fixed with a bag suction frame 19, and each bag suction frame 19 is fixedly connected with a bag clamping plate 18. The base 1 includes a bottom plate 101, the cross section of the bottom plate 101 is rectangular, and the two corresponding sides of the upper surface of the bottom plate 101 are vertically fixed with side plates 102, and the side plates 102 are in a "concave" shape. Both ends of each side plate 102 are connected to the opening and closing mechanism 16, and both sides of the groove of each side plate 102 are installed with a transmission mechanism. The transmission mechanism includes a column 20, and the column 20 is fixed on the side plate 102 in the vertical direction. The two ends of the column 20 are respectively fixed with rollers 2. The opening and closing mechanism 16 includes two relatively arranged connecting rod mechanisms, and the connecting rod mechanism includes a connecting rod mechanism from the inside to the outside. The first connecting rod 9 and the second connecting rod 11 are arranged in parallel, one end of the two first connecting rods 9 is connected through the first pin shaft 5, the other end of the two first connecting rods 9 is connected through the second pin shaft 7, one end of the two second connecting rods 11 is connected through the first pin shaft 5, the other end of the two second connecting rods 11 is connected through the second pin shaft 7, the two first pin shafts 5 horizontally penetrate the bracket bottom plate 10, the two second pin shafts 7 are connected to the side plate 102 through the bearing 23, and the two first connecting rods 9 are located at one end of the side plate 102. An extension rod 1 is provided 5, the extension rod 15 is connected to the driving mechanism 25 through the fisheye joint 24, the driving mechanism 25 includes a main shaft 6, the main shaft 6 is connected to the side plate 102 through the bearing 23, the main shaft 6 is arranged between the two side plates 102, a single arm 4 is fixedly connected to the middle of the main shaft 6, both ends of the main shaft 6 are sleeved with double swing arms 14, both ends of each double swing arm 14 are respectively fixedly connected to one end of the forward and reverse screw rods 13, and the other end of each forward and reverse screw rod 13 is connected to the extension rod 15, and also includes a cylinder 22, the cylinder 22 is connected to the bottom plate 101 through the bearing seat, and the cylinder rod of the cylinder 22 is connected to the single arm 4.

[0031] Example 3

[0032] The machine base 1 comprises a machine base 1, a driving mechanism 25 is provided at the bottom of the machine base 1, opening and closing mechanisms 16 are movably installed at both ends of the top of the machine base 1, the two opening and closing mechanisms 16 are connected to the driving mechanism 25, the tops of the two opening and closing mechanisms 16 are provided with a bracket bottom plate 10, one side of the two bracket bottom plates 10 are provided with bag holding clamps 8 facing each other and perpendicular to the ground, the upper surfaces of the two bracket bottom plates 10 are fixedly connected with beams 21, the two ends of each beam 21 are vertically clamped with clamping brackets 3, the top of each clamping bracket 3 is fixed with a bag suction frame 19, and each bag suction frame 19 is fixedly connected with a bag clamping plate 18, the machine base 1 comprises a bottom plate 101, the bottom plate The cross section of 101 is rectangular, and the two corresponding sides of the upper surface of the bottom plate 101 are vertically fixed with side plates 102, and the side plates 102 are in a "concave" shape. Both ends of each side plate 102 are connected to the opening and closing mechanism 16, and both sides of the groove of each side plate 102 are installed with a transmission mechanism. The transmission mechanism includes a column 20, and the column 20 is fixed on the side plate 102 in the vertical direction. The two ends of the column 20 are respectively fixed with rollers 2. The opening and closing mechanism 16 includes two relatively arranged connecting rod mechanisms, and the connecting rod mechanism includes a first connecting rod 9 and a second connecting rod 11 arranged from the inside to the outside. The first connecting rod 9 and the second connecting rod 11 are arranged in parallel. One end of the two first connecting rods 9 is connected through the first pin shaft 5, and the other end of the two first connecting rods 9 is connected through the second pin shaft 7. One end of the two second connecting rods 11 is connected through the first pin shaft 5, and the other end of the two second connecting rods 11 is connected through the second pin shaft 7. The two first pin shafts 5 horizontally penetrate the bracket bottom plate 10, and the two second pin shafts 7 are connected to the side plate 102 through bearings 23. The two first connecting rods 9 are located at one end of the side plate 102. The extension rod 15 is connected to the driving mechanism 25 through a fisheye joint 24. The driving mechanism 25 includes a main shaft 6, and the main shaft 6 is connected to the side plate 102 through a bearing 23. The main shaft 6 is connected to the plate 102, and the main shaft 6 is arranged between the two side plates 102. A single arm 4 is fixedly connected to the middle of the main shaft 6, and double swing arms 14 are sleeved on both ends of the main shaft 6. One end of the forward and reverse screw 13 is fixedly connected to the two ends of each double swing arm 14, and the other end of each forward and reverse screw 13 is connected to the extension rod 15. It also includes a cylinder 22, which is connected to the base plate 101 through a bearing seat, and the cylinder rod of the cylinder 22 is connected to the single arm 4. A clip 17 is provided on the clamping bracket 3, and a bag holding bracket 12 is fixedly connected to the lower surface of the bracket base plate 10. The bag holding bracket 12 is fixedly connected to the bag holding splint 8, and a bag clamping buffer 26 is installed on the bag suction frame 19.

Claims

1. Automatic packaging bag holding and pushing device for solid alkali, characterized by: The invention comprises a machine base (1), wherein a driving mechanism (25) is provided at the bottom of the machine base (1), and opening and closing mechanisms (16) are movably installed at the two ends of the top of the machine base (1), and the two opening and closing mechanisms (16) are connected to the driving mechanism (25). The tops of the two opening and closing mechanisms (16) are provided with a bracket base plate (10), and one side of the two bracket base plates (10) is provided with bag holding clamps (8) facing each other and perpendicular to the ground. The upper surfaces of the two bracket base plates (10) are fixedly connected with cross beams (21), and the two ends of each cross beam (21) are vertically clamped with a clamping bracket (3), and the top of each clamping bracket (3) is fixed with a bag suction frame (19), and each bag suction frame (19) is fixedly connected with a bag clamping plate (18).

2. The automatic packaging bag holding and pushing device for solid alkali according to claim 1 is characterized in that: The machine base (1) comprises a bottom plate (101) having a rectangular cross section, and side plates (102) are vertically fixedly connected to two corresponding sides of the upper surface of the bottom plate (101), and the side plates (102) are in a "concave" shape, and both ends of each side plate (102) are connected to an opening and closing mechanism (16), and a transmission mechanism is installed on both sides of the groove of each side plate (102).

3. The automatic packaging bag holding and pushing device for solid alkali according to claim 2 is characterized in that: The conveying mechanism comprises a column (20), wherein the column (20) is fixed on the side plate (102) in a vertical direction, and rollers (2) are respectively fixedly connected to both ends of the column (20).

4. The automatic packaging bag holding and pushing device for solid alkali according to claim 2 is characterized in that: The opening and closing mechanism (16) comprises two connecting rod mechanisms arranged opposite to each other, the connecting rod mechanisms comprising a first connecting rod (9) and a second connecting rod (11) arranged from the inside to the outside, the first connecting rod (9) and the second connecting rod (11) being arranged in parallel, one end of the two first connecting rods (9) being connected via a first pin shaft (5), the other end of the two first connecting rods (9) being connected via a second pin shaft (7), one end of the two second connecting rods (11) being connected via the first pin shaft (5), the other end of the two second connecting rods (11) being connected via the second pin shaft (7), the two first pin shafts (5) both horizontally passing through the bracket bottom plate (10), the two second pin shafts (7) both being connected to the side plate (102) via bearings (23), and the two first connecting rods (9) being provided with an extension rod (15) at one end located on the side plate (102), the extension rod (15) being connected to the driving mechanism (25) via a fisheye joint (24).

5. The automatic packaging bag holding and pushing device for solid alkali according to claim 4 is characterized in that: The driving mechanism (25) comprises a main shaft (6), the main shaft (6) is connected to the side plate (102) through a bearing (23), the main shaft (6) is arranged between the two side plates (102), a single arm (4) is fixedly connected to the middle of the main shaft (6), both ends of the main shaft (6) are sleeved with double swing arms (14), both ends of each double swing arm (14) are respectively fixedly connected to one end of a forward and reverse screw rod (13), and the other end of each forward and reverse screw rod (13) is connected to an extension rod (15), It also includes a cylinder (22), wherein the cylinder (22) is connected to the base plate (101) via a bearing seat, and a cylinder rod of the cylinder (22) is connected to the single arm (4).

6. The automatic packaging bag holding and pushing device for solid alkali according to claim 1 is characterized in that: The clamp bracket (3) is provided with a clip (17).

7. The automatic packaging bag holding and pushing device for solid alkali according to claim 1 is characterized in that: A bag holding bracket (12) is fixedly connected to the lower surface of the bracket bottom plate (10), and the bag holding bracket (12) is fixedly connected to the bag holding splint (8).

8. The automatic packaging bag holding and pushing device for solid alkali according to claim 1 is characterized in that: The bag suction frame (19) is provided with a bag clamping buffer (26).

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