CN215241498U

CN215241498U - Bamboo processing fragment dissection equipment

Info

Publication number: CN215241498U
Application number: CN202120506155.8U
Authority: CN
Inventors: 张海林
Original assignee: Jiangsu Zhenning Semiconductor Research Institute Co Ltd
Current assignee: Jiangsu Zhenning Semiconductor Research Institute Co Ltd
Priority date: 2021-03-10
Filing date: 2021-03-10
Publication date: 2021-12-21
Anticipated expiration: 2031-03-10

Abstract

The utility model relates to a dissection equipment especially relates to a bamboo processing fragment dissection equipment. The technical problem of the utility model is that: the bamboo processing, fragment and cutting equipment is high in safety and working efficiency. The utility model provides a such bamboo processing fragment dissection equipment, characterized by: the cutting device comprises a bottom plate, a pushing mechanism, a cutting mechanism and a conveying mechanism, wherein the pushing mechanism is arranged on one side of the top of the bottom plate, the cutting mechanism is arranged on one side of the pushing mechanism, and the conveying mechanism is arranged on one side of the top of the bottom plate. The utility model can automatically break the skin, cut into sections and transport the bamboo through the matching of the pushing mechanism, the cutting mechanism and the conveying mechanism, thereby improving the working efficiency of people, avoiding scratching the hands of people and having higher safety; through unloading mechanism, can be automatically to the indirect material loading of bamboo, labour saving and time saving.

Description

Bamboo processing fragment dissection equipment

Technical Field

The utility model relates to a dissection equipment especially relates to a bamboo processing fragment dissection equipment.

Background

Bamboo is a tall, arborous, gramineous plant, also known as bamboo, which is widely classified and distributed in tropical, subtropical, and warm-warm regions. The bamboo chopsticks are characterized in that a plurality of articles made of bamboo are often needed, such as bamboo chopsticks, bamboo rhizomes, toothpicks, fans and the like, are durable and are deeply popular with China.

When people need make bamboo chopsticks and fan, all will break the skin dissection to the bamboo, under the general condition, all can break the skin dissection to the bamboo by the manual work, when using the instrument of cutter class etc. can injure people's hand by mistake, and the security is lower, because the bamboo texture is harder, needs to consume a large amount of physical power of people, and work efficiency is low, and it is inconvenient, therefore, it is necessary to design a bamboo processing fragmentation dissection equipment that can be higher safely and work efficiency is higher.

SUMMERY OF THE UTILITY MODEL

In order to overcome the artifical shortcoming that security is lower with work efficiency when broken skin dissection to the bamboo, the technical problem of the utility model is that: the bamboo processing, fragment and cutting equipment is high in safety and working efficiency.

The technical implementation scheme of the utility model is: a bamboo processing, chipping and cutting device comprises a bottom plate, a pushing mechanism, a cutting mechanism and a conveying mechanism, wherein the pushing mechanism is arranged on one side of the top of the bottom plate, the cutting mechanism is arranged on one side of the pushing mechanism, the conveying mechanism is arranged on one side of the top of the bottom plate, the cutting mechanism comprises a third support frame, a second rolling shaft, a second belt pulley component, a connecting block, a fourth sliding block, a first blade and a second blade, two third support frames are arranged on one side of the top of the bottom plate, the second rolling shaft is rotatably arranged on the upper portion of one side of the first support frame, the second belt pulley component is arranged between the first rolling shaft and the second rolling shaft on one side of the first support frame, the connecting block is arranged on one side of the second rolling shaft, the fourth sliding block is arranged on the top of the third support frame on one side of the first support frame, the first blade is slidably arranged between the two third support frames, the first blade is connected with the fourth sliding block, and the first blade is rotatably connected with the connecting block, the top of the first support frame is provided with a second blade.

Optionally, the pushing mechanism comprises a first support frame, a second support frame, a motor, a first rolling shaft, a sprocket assembly, a first pulley assembly, a sliding rail, a first slider, a second slider, a connecting rod, a third slider and a baffle, the first support frame is arranged on one side of the top of the bottom plate, the second support frame is arranged on one side of the top of the bottom plate, the motor is arranged on the top of the second support frame, the first rolling shaft is rotatably arranged on two sides of the upper portion of the first support frame, the sprocket assembly is arranged between one side of the two first rolling shafts, the first pulley assembly is arranged between the output shaft of the motor and one side of the first rolling shaft, the sliding rail is arranged on the lower portion of one side of the first support frame, the first slider is slidably arranged on the top of the sliding rail, the second slider is arranged on one side of the sprocket assembly, the first slider is connected with the second sliding slider, the connecting rod is arranged on one side of the first slider, the third slider is arranged on one side of the connecting rod, the first support frame is slidably connected with the third slider, a baffle is arranged on one side of the top of the first support frame, the baffle is connected with the third sliding block in a sliding mode, and a slide way is arranged on one side of the first support frame.

Optionally, the conveying mechanism includes a fourth support frame, third rolling shafts, a third belt pulley assembly and a fourth belt pulley assembly, four fourth support frames are arranged on one side of the top of the bottom plate, two third rolling shafts are rotatably arranged on the upper portions of the fourth support frames on the same longitudinal side, the third belt pulley assembly is arranged between the third rolling shafts, and the fourth belt pulley assembly is arranged between the first rolling shaft on one side and the third rolling shaft on one side.

Optionally, the blanking mechanism comprises a fifth support frame, a sixth support frame, a blanking hopper, a material distribution shaft, a fourth rolling shaft, a first bevel gear, a fifth belt pulley assembly and a straight gear, one part of one side of the top of the bottom plate is provided with two fifth support frames, one side of the top of the bottom plate is provided with the sixth support frame, the blanking hopper is arranged between the tops of the fifth support frames, one side of the blanking hopper is rotatably provided with two fourth rolling shafts, the upper part of the fourth rolling shaft on one side is provided with the material distribution shaft, the upper part of the sixth support frame is rotatably provided with the first bevel gear, one part of the first rolling shaft on one side is also provided with the first bevel gear, the first bevel gears are mutually meshed, the fifth belt pulley assembly is arranged between the fourth rolling shaft on one side and the first bevel gear on one side, one side of the fourth rolling shaft is provided with the straight gear, and the straight gear are mutually meshed.

Optionally, the material sweeping device further comprises a material sweeping mechanism, and the material sweeping mechanism is arranged on one side of the top of the bottom plate.

Optionally, the sweeping mechanism comprises a seventh support frame, a fifth rolling shaft, a second bevel gear, an eighth support frame, a sixth rolling shaft, a soft hair brush, a third bevel gear and a fourth bevel gear, the seventh support frame is arranged on one side of the top of the bottom plate, the fifth rolling shaft is rotatably arranged on the upper portion of the seventh support frame, the second bevel gear is arranged on one side of the third rolling shaft and one side of the fifth rolling shaft on one side, the second bevel gears are meshed with each other, the eighth support frame is arranged on one side of the top of the bottom plate, the soft hair brush is rotatably arranged on the upper portion of the eighth support frame, the sixth rolling shaft is rotatably arranged on one side of the top of the bottom plate, the third bevel gear is arranged on the upper portion of the sixth rolling shaft and one side of the fifth rolling shaft, the third bevel gear is meshed with each other, the fourth bevel gear is arranged on one side of the top of the sixth rolling shaft and one side of the soft hair brush.

Optionally, the storage box is further included, and the storage box is arranged on one side of the top of the bottom plate.

Optionally, the fifth roll axis is cylindrical in shape.

Compared with the prior art, the utility model has the advantages of as follows: 1. the utility model discloses a push mechanism, cutting mechanism and transport mechanism's cooperation can carry out brokenly skin, dissection and transportation operation to the bamboo automatically, improves people's work efficiency, avoids being the fish tail to people's hand, and the security is higher.

2. Through unloading mechanism, can be automatically to the indirect material loading of bamboo, labour saving and time saving.

3. Through sweeping the material mechanism, can clean bamboo and residue automatically, be convenient for people to collect.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic view of a three-dimensional structure of the pushing mechanism of the present invention.

Fig. 3 is a schematic view of the three-dimensional structure of the cutting mechanism of the present invention.

Fig. 4 is a schematic perspective view of the conveying mechanism of the present invention.

Fig. 5 is a schematic view of the three-dimensional structure of the discharging mechanism of the present invention.

Fig. 6 is a schematic view of the three-dimensional structure of the sweeping mechanism of the present invention.

The meaning of the reference symbols in the figures: 1: bottom plate, 2: pushing mechanism, 20: first support frame, 21: second support, 22: motor, 23: first roll axis, 24: sprocket assembly, 25: first pulley assembly, 26: slide rail, 27: first slider, 28: second slider, 29: connecting rod, 210: third slider, 211: baffle, 212: slideway, 3: cutting mechanism, 30: third support frame, 31: second roll axis, 32: second pulley assembly, 33: connecting block, 34: fourth slider, 35: first blade, 36: second blade, 4: transport mechanism, 40: fourth support frame, 41: third roll axis, 42: third pulley assembly, 43: fourth pulley assembly, 5: unloading mechanism, 50: fifth support frame, 51: sixth support frame, 52: hopper, 53: material distributing shaft, 54: fourth roll axis, 55: first bevel gear, 56: fifth pulley assembly, 57: spur gear, 6: sweeping mechanism, 60: seventh support frame, 61: fifth roll axis, 62: second bevel gear, 63: eighth support frame, 64: fur brush, 65: sixth roll axis, 66: third bevel gear, 67: fourth bevel gear, 7: a storage box.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

A bamboo processing, chipping and cutting device comprises a bottom plate 1, a pushing mechanism 2, a cutting mechanism 3 and a conveying mechanism 4, wherein the pushing mechanism 2 is arranged on the left side of the top of the bottom plate 1, the cutting mechanism 3 is arranged on the right side of the pushing mechanism 2, the conveying mechanism 4 is arranged on the right side of the top of the bottom plate 1, the pushing mechanism 2 comprises a first support frame 20, a second support frame 21, a motor 22, a first rolling shaft 23, a chain wheel assembly 24, a first belt wheel assembly 25, a sliding rail 26, a first sliding block 27, a second sliding block 28, a connecting rod 29, a third sliding block 210 and a baffle 211, the first support frame 20 is arranged on the left side of the top of the bottom plate 1, the second support frame 21 is arranged on the left side of the top of the bottom plate 1, the motor 22 is arranged on the top of the second support frame 21, the first rolling shaft 23 is rotatably arranged on the left side and the right side of the upper portion of the first support frame 20, the chain wheel assembly 24 is arranged between the front sides of the two first rolling shafts 23, a first belt pulley assembly 25 is arranged between an output shaft of the motor 22 and the rear side of a first rolling shaft 23 on the right side, a sliding rail 26 is arranged at the lower part of the front side of the first support frame 20, a first sliding block 27 is arranged at the top of the sliding rail 26 in a sliding manner, a second sliding block 28 is arranged at the front side of the chain wheel assembly 24, the first sliding block 27 is connected with the second sliding block 28 in a sliding manner, a connecting rod 29 is arranged at the rear side of the first sliding block 27, a third sliding block 210 is arranged at the rear side of the connecting rod 29, the first support frame 20 is connected with the third sliding block 210 in a sliding manner, a baffle 211 is arranged at the front side of the top of the first support frame 20, the baffle 211 is connected with the third sliding block 210 in a sliding manner, and a slide 212 is arranged at the right side of the first support frame 20.

Put the bamboo at first support frame 20 top earlier, starter motor 22, motor 22 output shaft drives first pulley subassembly 25 and rotates, first pulley subassembly 25 drives two first rolling axles 23 and rotates, two first rolling axles 23 drive sprocket assembly 24 and rotate, sprocket assembly 24 drives first slider 27 through second slider 28 and reciprocates about on slide rail 26, when first slider 27 moves to the right, drive connecting rod 29 and third slider 210 and move to the right, third slider 210 pushes the bamboo to the right, in the bamboo propelling movement in-process, there is baffle 211 to block the bamboo, prevent that the bamboo from dropping, then can cut into slices and the dissection on certain part of cutting mechanism 3, when first slider 27 moves to the left, drive connecting rod 29 and third slider 210 and move to the left and reset.

The cutting mechanism 3 comprises third support frames 30, second rolling shafts 31, second belt pulley assemblies 32, connecting blocks 33, fourth sliding blocks 34, first blades 35 and second blades 36, two third support frames 30 are arranged on the left side of the top of the bottom plate 1, the second rolling shafts 31 are rotatably arranged on the upper portion of the rear side of the first support frames 20, the second belt pulley assemblies 32 are arranged between the first rolling shafts 23 and the second rolling shafts 31 on the right side, the connecting blocks 33 are arranged on the rear side of the second rolling shafts 31, the fourth sliding blocks 34 are arranged on the tops of the third support frames 30 on the rear side, the first blades 35 are slidably arranged between the two third support frames 30, the first blades 35 are slidably connected with the fourth sliding blocks 34, the first blades 35 are rotatably connected with the connecting blocks 33, and the second blades 36 are arranged on the tops of the first support frames 20.

When the third sliding block 210 pushes the bamboo to the right, the bamboo is in contact with the second blade 36, the second blade 36 breaks the skin of the bamboo, the first rolling shaft 23 drives the second rolling shaft 31 to rotate through the second belt pulley assembly 32, the second rolling shaft 31 drives the first blade 35 to reciprocate up and down through the connecting block 33, when the first blade 35 moves down, the bamboo with the skin broken is cut, the cut bamboo falls on the slide rail 212, and then slides to the right.

The conveying mechanism 4 comprises a fourth supporting frame 40, a third rolling shaft 41, a third belt pulley assembly 42 and a fourth belt pulley assembly 43, four fourth supporting frames 40 are arranged on the right side of the top of the bottom plate 1, two third rolling shafts 41 are rotatably arranged on the upper portions of the fourth supporting frames 40 on the same longitudinal side, the third belt pulley assembly 42 is arranged between the third rolling shafts 41, and the fourth belt pulley assembly 43 is arranged between the first rolling shaft 23 on the right side and the third rolling shaft 41 on the left side.

When the bamboo slides to the third pulley assembly 42, the first rolling shaft 23 drives the third rolling shaft 41 to rotate through the fourth pulley assembly 43, the third rolling shaft 41 drives the third pulley assembly 42 to rotate, and the third pulley assembly 42 conveys the bamboo to the right.

Example 2

On the basis of embodiment 1, as shown in fig. 5 and 6, the blanking device further includes a blanking mechanism 5, the blanking mechanism 5 includes a fifth support frame 50, a sixth support frame 51, a blanking hopper 52, a material distributing shaft 53, a fourth rolling shaft 54, a first bevel gear 55, a fifth pulley assembly 56 and a spur gear 57, two fifth support frames 50 are disposed at the rear portion of the left side of the top of the bottom plate 1, the sixth support frame 51 is disposed at the left side of the top of the bottom plate 1, the blanking hopper 52 is disposed between the tops of the fifth support frames 50, two fourth rolling shafts 54 are rotatably disposed at the front side of the blanking hopper 52, the material distributing shaft 53 is disposed at the upper portion of the fourth rolling shaft 54 at the rear side, a first bevel gear 55 is rotatably disposed at the upper portion of the sixth support frame 51, the first bevel gear 55 is also disposed at the rear portion of the first rolling shaft 23 at the left side, the first bevel gears 55 are engaged with each other, the fifth pulley assembly 56 is disposed between the fourth rolling shaft 54 at the front side and the first bevel gear 55 at the rear side, the left sides of the fourth rolling shafts 54 are provided with spur gears 57, and the spur gears 57 are meshed with each other.

The bamboo is placed on the lower hopper 52, the bamboo rolls forwards on the material separating shaft 53 due to gravity, the first rolling shaft 23 on the left side drives the first bevel gear 55 on the right side to rotate, so that the first bevel gear 55 on the left side is driven to rotate, the first bevel gear 55 on the left side drives the fourth rolling shaft 54 on the front side to rotate through the fifth belt pulley component 56, the fourth rolling shaft 54 on the front side is meshed through the straight gear 57 to drive the fourth rolling shaft 54 on the rear side to rotate, the fourth rolling shaft 54 on the rear side drives the material separating shaft 53 to rotate, so that the bamboo is transmitted to the top of the first support frame 20 to be peeled.

The cleaning device also comprises a cleaning mechanism 6, the cleaning mechanism 6 comprises a seventh support frame 60, a fifth rolling shaft 61, a second bevel gear 62, an eighth support frame 63, a sixth rolling shaft 65, a soft brush 64, a third bevel gear 66 and a fourth bevel gear 67, the seventh support frame 60 is arranged on the right side of the top of the bottom plate 1, the fifth rolling shaft 61 is rotatably arranged on the upper part of the seventh support frame 60, the second bevel gear 62 is respectively arranged on the front part of the third rolling shaft 41 on the left side and the left side of the fifth rolling shaft 61, the second bevel gears 62 are mutually meshed, the eighth support frame 63 is arranged on the right side of the top of the bottom plate 1, the soft brush 64 is rotatably arranged on the upper part of the eighth support frame 63, the sixth rolling shaft 65 is rotatably arranged on the right side of the top of the bottom plate 1, the third bevel gear 66 is respectively arranged on the upper part of the sixth rolling shaft 65 and the right side of the fifth rolling shaft 61, the third bevel gear 66 is mutually meshed, the fourth bevel gear 67 is respectively arranged on the top of the sixth rolling shaft 65 and the front side of the soft brush 64, the fourth bevel gears 67 are engaged with each other.

When the third pulley assembly 42 conveys the bamboo to the right, the third rolling shaft 41 drives the fifth rolling shaft 61 through the second bevel gear 62, the fifth rolling shaft 61 drives the sixth rolling shaft 65 to rotate through the third bevel gear 66, the sixth rolling shaft 65 rotates and drives the soft brush 64 to rotate through the fourth bevel gear 67, and the bamboo and the residues are cleaned.

The storage box is characterized by further comprising a storage box 7, and the storage box 7 is arranged on the right side of the top of the bottom plate 1.

When the brush bristles 64 clean the bamboo on the third pulley assembly 42, the bamboo and the residues fall into the storage box 7, and people take away the bamboo in the storage box 7.

Although embodiments of the present invention have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents.

Claims

1. The utility model provides a bamboo processing fragment dissection equipment, including bottom plate (1), characterized by: the cutting device is characterized by further comprising a pushing mechanism (2), a cutting mechanism (3) and a conveying mechanism (4), wherein the pushing mechanism (2) is arranged on one side of the top of the bottom plate (1), the cutting mechanism (3) is arranged on one side of the pushing mechanism (2), the conveying mechanism (4) is arranged on one side of the top of the bottom plate (1), the cutting mechanism (3) comprises third support frames (30), second rolling shafts (31), second belt pulley assemblies (32), connecting blocks (33), fourth sliders (34), first blades (35) and second blades (36), two third support frames (30) are arranged on one side of the top of the bottom plate (1), the second rolling shafts (31) are rotatably arranged on the upper portion of one side of the first support frames (20), the second belt pulley assemblies (32) are arranged between the first rolling shafts (23) and the second rolling shafts (31) on one side, the connecting blocks (33) are arranged on one side of the second rolling shafts (31), the top of the third support frame (30) on one side is provided with a fourth sliding block (34), a first blade (35) is arranged between the two third support frames (30) in a sliding mode, the first blade (35) is connected with the fourth sliding block (34) in a sliding mode, the first blade (35) is connected with the connecting block (33) in a rotating mode, and the top of the first support frame (20) is provided with a second blade (36).

2. The bamboo chip-cutting equipment of claim 1, wherein: the pushing mechanism (2) comprises a first support frame (20), a second support frame (21), a motor (22), first rolling shafts (23), a chain wheel component (24), a first belt pulley component (25), a sliding rail (26), a first sliding block (27), a second sliding block (28), a connecting rod (29), a third sliding block (210) and a baffle (211), wherein the first support frame (20) is arranged on one side of the top of the bottom plate (1), the second support frame (21) is arranged on one side of the top of the bottom plate (1), the motor (22) is arranged on the top of the second support frame (21), the first rolling shafts (23) are rotatably arranged on two sides of the upper portion of the first support frame (20), the chain wheel component (24) is arranged between one side of the two first rolling shafts (23), the first belt (25) is arranged between the output shaft of the motor (22) and one side of the first rolling shafts (23) on one side, the lower portion of one side of the first support frame (20) is provided with the sliding rail (26), slide rail (26) top slidingtype is equipped with first slider (27), sprocket subassembly (24) one side is equipped with second slider (28), first slider (27) and second slider (28) sliding connection, first slider (27) one side is equipped with connecting rod (29), connecting rod (29) one side is equipped with third slider (210), first support frame (20) and third slider (210) sliding connection, first support frame (20) top one side is equipped with baffle (211), baffle (211) and third slider (210) sliding connection, first support frame (20) one side is equipped with slide (212).

3. A bamboo working chipping and cutting apparatus as claimed in claim 2 wherein: conveying mechanism (4) are equipped with four fourth support frames (40) including fourth support frame (40), third roll axis (41), third pulley assembly (42) and fourth pulley assembly (43), bottom plate (1) top one side, fourth support frame (40) upper portion rotary type of vertical homonymy is equipped with two third roll axes (41), be equipped with third pulley assembly (42) between third roll axis (41), be equipped with fourth pulley assembly (43) between first roll axis (23) of one side and one side third roll axis (41).

4. A bamboo working chipping and cutting apparatus as claimed in claim 3 wherein: the blanking mechanism (5) comprises a fifth support frame (50), a sixth support frame (51), a blanking hopper (52), a material distributing shaft (53), fourth rolling shafts (54), a first bevel gear (55), a fifth belt pulley assembly (56) and a straight gear (57), wherein two fifth support frames (50) are arranged on one side of the top of the bottom plate (1), the sixth support frame (51) is arranged on one side of the top of the bottom plate (1), the blanking hopper (52) is arranged between the tops of the fifth support frames (50), two fourth rolling shafts (54) are rotatably arranged on one side of the blanking hopper (52), the material distributing shaft (53) is arranged on the upper portion of the fourth rolling shaft (54) on one side, the first bevel gear (55) is rotatably arranged on the upper portion of the sixth support frame (51), the first bevel gear (55) is also arranged on one side of the first rolling shaft (23), and the first bevel gears (55) are mutually meshed, a fifth belt pulley assembly (56) is arranged between the fourth rolling shaft (54) on one side and the first bevel gear (55) on one side, straight gears (57) are arranged on one sides of the fourth rolling shaft (54), and the straight gears (57) are meshed with each other.

5. A bamboo working chipping and cutting apparatus as claimed in claim 4 wherein: the material sweeping device is characterized by further comprising a material sweeping mechanism (6), wherein the material sweeping mechanism (6) is arranged on one side of the top of the bottom plate (1).

6. A bamboo working chipping and cutting apparatus as claimed in claim 5 wherein: the sweeping mechanism (6) comprises a seventh support frame (60), a fifth rolling shaft (61), a second bevel gear (62), an eighth support frame (63), a sixth rolling shaft (65), a soft brush (64), a third bevel gear (66) and a fourth bevel gear (67), the seventh support frame (60) is arranged on one side of the top of the bottom plate (1), the fifth rolling shaft (61) is rotatably arranged on the upper portion of the seventh support frame (60), the second bevel gear (62) is respectively arranged on one side of the third rolling shaft (41) and one side of the fifth rolling shaft (61) on one side, the second bevel gears (62) are mutually meshed, the eighth support frame (63) is arranged on one side of the top of the bottom plate (1), the soft brush (64) is rotatably arranged on the upper portion of the eighth support frame (63), the sixth rolling shaft (65) is arranged on one side of the top of the bottom plate (1), the third bevel gear (66) is respectively arranged on the upper portion of the sixth rolling shaft (65) and one side of the fifth rolling shaft (61), the third bevel gears (66) are meshed with each other, the top of the sixth rolling shaft (65) and one side of the soft hairbrush (64) are provided with fourth bevel gears (67), and the fourth bevel gears (67) are meshed with each other.

7. A bamboo working chipping and cutting apparatus as claimed in claim 6 wherein: the storage box is characterized by further comprising a storage box (7), wherein the storage box (7) is arranged on one side of the top of the bottom plate (1).

8. A bamboo working chipping and cutting apparatus as claimed in claim 6 wherein: the fifth rolling axis (61) is cylindrical in shape.