CN214361994U

CN214361994U - Pre-drawing tensioning system of netting machine

Info

Publication number: CN214361994U
Application number: CN202022742904.5U
Authority: CN
Inventors: 刘洋; 王玲; 黄瑞良; 刘旺; 宋涛; 龙能; 孙卫军
Original assignee: Hunan Xinhai Co ltd
Current assignee: Hunan Xinhai Co ltd
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2021-10-08
Anticipated expiration: 2030-11-24

Abstract

The utility model provides a netting machine take out tensioning system in advance, it is including rack-mounted two sets of tensioning supports, install the main shaft between two sets of tensioning support lower parts, first tension dancer roll is installed to main shaft front side top, second tension dancer roll, install the threading board directly over the main shaft between two sets of tensioning supports, install between two sets of tensioning supports of threading board rear side and take out the drive shaft in advance, it takes out the roller in advance to take out the warp to install the drive shaft top in advance, the tensioning support outside is installed and is taken out power component in advance, it forms the transmission shaft to take out the shrink of drive shaft tip in advance, the transmission shaft passes the tensioning support and takes out power component in advance and is connected. Rational in infrastructure after this scheme of adoption, use tensioning effectual.

Description

Pre-drawing tensioning system of netting machine

Technical Field

The utility model belongs to the technical field of the fishing net technique and specifically relates to indicate a netting machine take out tensioning system in advance.

Background

Adjust through screw rod and spring between the upper and lower tension adjusting roller of traditional netting machine, can produce certain pulling force to the adjusting roller all the time during the spring is adjusted, if tension control is not good just leads to the net twine to split easily or excessive tensioning, influences the direction and the output of net twine, warp is taken out roller, tension adjusting roller in advance simultaneously and is comparatively slender, and it sinks the deformation easily at the use middle part, leads to warp to take out roller, tension adjusting roller's life weak point in advance.

Disclosure of Invention

An object of the utility model is to overcome prior art's not enough, provide a reasonable in structure, use effectual netting machine take out tensioning system in advance.

In order to achieve the above object, the present invention provides a technical solution: a pre-drawing tensioning system of a netting machine comprises two groups of tensioning supports arranged on a rack, a main shaft is arranged between the lower portions of the two groups of tensioning supports, a first tension adjusting roller and a second tension adjusting roller are arranged above the front side of the main shaft, a yarn threading plate is arranged between the two groups of tensioning supports right above the main shaft, a pre-drawing driving shaft is arranged between the two groups of tensioning supports on the rear side of the yarn threading plate, a warp pre-drawing roller is arranged above the pre-drawing driving shaft, a pre-drawing power assembly is arranged on the outer side of each tensioning support, the end portion of the pre-drawing driving shaft is contracted to form a transmission shaft, and the transmission shaft penetrates through the tensioning supports and is connected with the pre-drawing power assembly.

A tension roller supporting component is arranged on the machine frame between the two groups of tensioning brackets, the tension roller supporting component comprises a tensioning supporting seat, a polyurethane roller, a tensioning middle sliding block, a middle sliding block cover plate and a tensioning middle upper cover, the bottom of the tensioning support seat is fixed on the rack, the rear end of the tensioning support seat extends upwards to form a support column, the upper part of the front side of the support column is extended to form a guide rail, the rear side of the tensioning middle slide block is provided with a guide groove, the guide groove is embedded with the guide rail, the top of the tensioning middle slide block is provided with a middle slide block cover plate, the top of the support column is provided with a tensioning middle upper cover, the tensioning middle upper cover is meshed with a tensioning adjusting screw rod, the top of the tensioning adjusting screw rod is connected with a tensioning handle, the bottom of the tensioning adjusting screw rod is downwards connected with the top of the middle slide block cover plate, the upper part of the tensioning middle slide block is provided with a first tension hole, and a first tension bearing ring is sleeved in the first tension hole; the two second tension adjusting rollers and the two first tension adjusting rollers are respectively positioned at two sides of the tensioning middle sliding block, one end of each first tension adjusting roller is sleeved in the corresponding tensioning bearing ring, the other end of each first tension adjusting roller is sleeved in the corresponding tensioning bracket, a strip-shaped second tension hole is formed in the lower part of the tensioning middle sliding block and is distributed along the vertical direction of the tensioning middle sliding block, one end of each second tension adjusting roller is movably sleeved in the corresponding second tension hole, and the other end of each second tension adjusting roller is sleeved in the corresponding tensioning bracket; the support columns below the guide rails are recessed backwards to form a main shaft transition groove, polyurethane rollers are mounted on the support columns at the middle part and the bottom of the main shaft transition groove, the middle part of the main shaft is located in the main shaft transition groove, and the wheel surfaces of the polyurethane rollers are respectively abutted against the peripheral surfaces of the rear side and the bottom of the main shaft.

The yarn threading plates are two and are respectively positioned on two sides of the tensioning supporting seat, one end of each yarn threading plate is connected with the upper part of the rear side of the tensioning supporting seat, the other end of each yarn threading plate is connected with the corresponding tensioning support, and a plurality of yarn threading holes are uniformly distributed in the yarn threading plates along the length direction of the plate body.

The pre-pumping power assembly comprises a pre-pumping motor mounting frame, a pre-pumping bearing seat and a pre-pumping speed reducer, wherein the pre-pumping motor mounting frame is mounted on the outer side of a tensioning support, the pre-pumping bearing seat is mounted on the tensioning support on the inner side of the pre-pumping motor mounting frame, the pre-pumping speed reducer is mounted on the outer side of a motor mounting frame 20, the pre-pumping speed reducer is driven to operate by a corresponding pre-pumping motor, and the end part of a pre-pumping driving shaft penetrates through the pre-pumping bearing seat to be connected with an output shaft of the pre-pumping speed reducer.

The yarn guide device is characterized in that supporting plates with the quantity larger than 2 are installed on the machine frame between the two groups of tensioning supports, two ends of the bottom of each supporting plate extend outwards horizontally to form fixing blocks, the fixing blocks are connected with the machine frame, the center of the top of each supporting plate protrudes upwards to form an intermediate reinforcing table, a yarn threading plate supporting frame is installed at the top of the intermediate reinforcing table, the upper portion of the yarn threading plate supporting frame is connected with a yarn threading plate, the end portion of the supporting plate on the rear side of the intermediate reinforcing table extends upwards vertically to form a supporting arm, the top of the supporting arm is bent horizontally to the rear side to form a connecting arm, the upper portion of the supporting arm protrudes towards the direction of the yarn threading plate supporting frame to form a bearing table, a pre-drawing bearing seat is installed on the bearing table, and the pre-drawing bearing seat is sleeved with a pre-drawing driving shaft.

The two sides of the bottom of the tensioning bracket are expanded to form connecting blocks, the connecting blocks are connected with a rack through bracket bolts, the top of the tensioning bracket is downwards concave to form a U-shaped sliding limiting groove, a tensioning end sliding block is movably arranged in the sliding limiting groove, the upper part of the tensioning end sliding block is provided with a through upper tension adjusting roller shaft hole, the lower part of the tensioning end sliding block is provided with a strip-shaped lower tension adjusting roller shaft hole, the lower tension adjusting roller shaft hole is distributed along the vertical direction of the tensioning end sliding block, the top of the tensioning end sliding block is connected with an end sliding block cover plate through sliding block bolts, a tensioning side upper cover is arranged on the tensioning bracket at the top of the sliding limiting groove, a vertically through screw hole is arranged on the tensioning side upper cover, a tensioning screw bolt is internally meshed in the screw hole, the top of the tensioning screw bolt is upwards connected with a hand wheel, the bottom of the tensioning screw bolt is downwards connected with the end sliding block cover plate, a first tension adjusting roller is sleeved in the upper tension adjusting roller shaft hole, the second tension adjusting roller is movably sleeved in the lower tension adjusting roller shaft hole.

The warp pre-pumping device is characterized in that a warp pre-pumping connecting rod is sleeved in the middle of the pre-pumping driving shaft, a sleeve hole is formed in the top of the warp pre-pumping connecting rod, an oilless bushing is sleeved in the sleeve hole, two warp pre-pumping rollers are respectively located on two sides of the warp pre-pumping connecting rod, one end of each warp pre-pumping roller is sleeved in the oilless bushing, the other end of each warp pre-pumping roller is sleeved at the top of the warp end connecting rod, and the bottom of the warp end connecting rod is connected with the end of the pre-pumping driving shaft.

By adopting the above technical scheme, the utility model, take out power component in advance and drive and take out the reciprocal arc motion of doing of drive shaft in advance (upper and front reciprocal) to take out in advance netting machine warp, the warp passes and wears behind between yarn board and first tension adjusting roller, the second tension adjusting roller, winds the main shaft back output around the second tension adjusting roller gyration, rational in infrastructure after this scheme of adoption, use tensioning effectual.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the structure of the tension bracket of the present invention.

Fig. 3 is a schematic view of the distribution of the tension bracket of the present invention.

Fig. 4 is a schematic view of the supporting plate structure of the present invention.

Detailed Description

The present invention will be further explained with reference to the drawings, and the preferred embodiment of the present invention is: referring to fig. 1 to 4, the pre-drawing tensioning system of the web weaving machine according to the embodiment includes two sets of tensioning supports 32 mounted on a frame, a main shaft is mounted between lower portions of the two sets of tensioning supports 32, a first tension adjusting roller 34 and a second tension adjusting roller 35 are mounted above a front side of the main shaft, a yarn threading plate 3 is mounted between the two sets of tensioning supports 32 right above the main shaft, a pre-drawing driving shaft 2 is mounted between the two sets of tensioning supports 32 at a rear side of the yarn threading plate 3, a warp pre-drawing roller 1 is mounted above the pre-drawing driving shaft 2, a pre-drawing power assembly is mounted outside the tensioning supports 32, an end portion of the pre-drawing driving shaft 2 contracts to form a transmission shaft, and the transmission shaft penetrates through the tensioning supports 32 to be connected with the pre-drawing power assembly. The number of the yarn threading plates 3 is two, the yarn threading plates are respectively positioned on two sides of the tensioning supporting seat 45, one end of each yarn threading plate 3 is connected with the upper part of the rear side of the tensioning supporting seat 45, the other end of each yarn threading plate is connected with the corresponding tensioning support 32, and a plurality of yarn threading holes are uniformly distributed in the yarn threading plate 3 along the length direction of the plate body. Install backup pad 4 that quantity is greater than 2 in the frame between two sets of tensioning support 32, the outside level in 4 bottom both ends of backup pad extends and forms the fixed block, the fixed block is connected with the frame, 4 top centers department of backup pad upwards the arch form in the middle of consolidating the platform, the middle portion is consolidated a top and is installed and wear the yarn board support frame, it is connected with wearing yarn board 3 to wear yarn board support frame upper portion, the middle portion is consolidated 4 tip of backup pad of platform rear side and upwards vertically extends and forms the support arm, the support arm top is bent to rear side level and is formed the linking arm, support arm upper portion is protruding to wearing yarn board support frame direction and is formed the bearing platform, install pre-drawing bearing frame 19 on the bearing platform, pre-drawing bearing frame 19 registrates with pre-drawing drive shaft 2.

A tension roller supporting assembly is arranged on the machine frame between the two groups of tension brackets 32, the tension roller supporting assembly comprises a tension supporting seat 45, a polyurethane roller 46, a tension middle sliding block 47, a middle sliding block cover plate 48 and a tension middle upper cover 49, wherein the bottom of the tension supporting seat 45 is fixed on the machine frame, the rear end of the tension supporting seat 45 extends upwards to form a supporting column, the upper part of the front side of the supporting column is expanded to form a guide rail, the rear side of the tension middle sliding block 47 is provided with a guide groove which is embedded with the guide rail, the top of the tension middle sliding block 47 is provided with a middle sliding block cover plate 48, the top of the supporting column is provided with a tension middle upper cover 49, the tension middle upper cover 49 is engaged with a tension adjusting screw rod, the top of the tension adjusting screw rod is connected with a tension handle, the bottom of the tension adjusting screw rod is downwards connected with the top of the middle sliding block cover plate 48, the upper part of the tension middle sliding block 47 is provided with a first tension hole, a first tension bearing ring is sleeved in the first tension hole; the two second tension adjusting rollers 35 and the two first tension adjusting rollers 34 are respectively positioned at two sides of the tensioning middle sliding block 47, one end of each first tension adjusting roller 34 is sleeved in a first tension bearing ring, the other end of each first tension adjusting roller is sleeved in the corresponding tensioning bracket 32, a strip-shaped second tension hole is formed in the lower portion of the tensioning middle sliding block 47 and is distributed in the vertical direction of the tensioning middle sliding block 47, one end of each second tension adjusting roller 35 is movably sleeved in the corresponding second tension hole, and the other end of each second tension adjusting roller 35 is sleeved in the corresponding tensioning bracket 32; the support columns below the guide rails are recessed backwards to form a main shaft transition groove, polyurethane rollers 46 are mounted on the support columns at the middle part and the bottom of the main shaft transition groove, the middle part of the main shaft is located in the main shaft transition groove, and the wheel surfaces of the polyurethane rollers 46 are respectively abutted against the peripheral surfaces of the rear side and the bottom of the main shaft.

The pre-pumping power assembly comprises a pre-pumping motor mounting frame 20, a pre-pumping bearing seat 19 and a pre-pumping speed reducer 22, wherein the pre-pumping motor mounting frame 20 is mounted on the outer side of a tensioning support 32, the pre-pumping bearing seat 19 is mounted on the tensioning support 32 on the inner side of the pre-pumping motor mounting frame 20, the pre-pumping speed reducer 22 is mounted on the outer side of the motor mounting frame 20, the pre-pumping speed reducer 22 is driven to operate by a corresponding pre-pumping motor, and the end part of the pre-pumping driving shaft 2 penetrates through the pre-pumping bearing seat 19 to be connected with an output shaft of the pre-pumping speed reducer 22.

The two sides of the bottom of the tensioning bracket 32 are expanded to form connecting blocks, the connecting blocks are connected with a rack through bracket bolts, the top of the tensioning bracket 32 is recessed downwards to form a U-shaped sliding limiting groove 30, a tensioning end sliding block 29 is movably installed in the sliding limiting groove 30, the upper part of the tensioning end sliding block 29 is provided with a penetrating upper tension adjusting roller shaft hole 57, the lower part of the tensioning end sliding block 29 is provided with a strip-shaped lower tension adjusting roller shaft hole 58, the lower tension adjusting roller shaft holes 58 are distributed along the vertical direction of the tensioning end sliding block 29, the top of the tensioning end sliding block 29 is connected with an end sliding block cover plate 28 through a sliding block bolt 17, a tensioning side upper cover 16 is installed on the tensioning bracket 32 at the top of the sliding limiting groove 30, a vertically penetrating screw hole is arranged on the tensioning side upper cover 16, a tensioning stud 14 is engaged in the screw hole, the top of the tensioning stud 14 is upwards connected with a hand wheel 12, and the bottom of the tensioning stud 14 is downwards connected with the end sliding block cover plate 28, the first dancer roll 34 is nested in the upper dancer roll shaft hole 57, and the second dancer roll 35 is movably nested in the lower dancer roll shaft hole 58.

The middle of the pre-pumping driving shaft 2 is sleeved with a warp pre-pumping connecting rod 54, the top of the warp pre-pumping connecting rod 54 is provided with a sleeve hole, an oil-free bush 55 is sleeved in the sleeve hole, two warp pre-pumping rollers 1 are respectively positioned on two sides of the warp pre-pumping connecting rod 54, one end of each warp pre-pumping roller 1 is sleeved in the oil-free bush 55, the other end of each warp pre-pumping roller is sleeved at the top of a warp end connecting rod 9, and the bottom of the warp end connecting rod 9 is connected with the end of the pre-pumping driving shaft 2.

The pre-drawing power assembly drives the pre-drawing driving shaft to do reciprocating motion (up and down reciprocating) in an arc shape, so that warp threads of the netting machine are pre-drawn, the warp threads pass through the yarn threading plate, the first tension adjusting roller and the second tension adjusting roller and then rotate around the second tension adjusting roller and then are output after bypassing the main shaft, the overall height of the tensioning end sliding block and the tensioning middle sliding block is adjusted through a rotating hand wheel/handle, so that the first tension adjusting roller and the second tension adjusting roller synchronously ascend or descend, and the second tension adjusting roller can freely slide up and down in the lower tension adjusting roller shaft hole and the second tension hole (can self-adapt to the tension of the mesh wire) by adopting the lower tension adjusting roller shaft hole and the second tension hole which are long in strip shapes, so that the mesh wire is prevented from being broken or excessively tensioned, and the mesh wire is tensioned all the time.

After the bottom of the tensioning support adopts the expanded fixing block, the strength of the bottom can be enhanced, meanwhile, the installation is more convenient (the connection can be realized only by a 5cm bolt), and the support member has better integrity and higher strength by adopting an integrally formed structure; the middle reinforcing platform and the bearing platform are thickened, so that the bearings and the yarn threading plate supporting frames are installed more stably, the pre-drawing driving shaft is sleeved in the bearing seat, the pre-drawing driving shaft is prevented from sinking and deforming, and the combined bearing seat and the yarn threading plate supporting frame are convenient to replace and maintain.

The warp pre-drawing roller and the tension adjusting roller are both combined, and the warp pre-drawing roller and the tension adjusting roller can be effectively prevented from sinking and deforming in the mode, so that the maintenance frequency is greatly reduced, and the service life of the warp pre-drawing roller is more than 5 times that of the traditional warp pre-drawing roller.

The above-mentioned embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so that all the changes made according to the shape and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a netting machine tensioning system that takes out in advance, it is including installing two sets of tensioning support (32) in the frame, installs the main shaft between two sets of tensioning support (32) lower parts, its characterized in that: install first tension adjusting roller (34) above the main shaft front side, second tension adjusting roller (35), install between two sets of tensioning support (32) directly over the main shaft and wear yarn board (3), it draws drive shaft (2) in advance to install between two sets of tensioning support (32) of wearing yarn board (3) rear side, it draws roller (1) in advance to draw the drive shaft (2) top to install warp in advance, take out power component in advance to install in tensioning support (32) outside, it draws power component in advance to draw drive shaft (2) tip shrink in advance to form the transmission shaft, the transmission shaft passes tensioning support (32) and is connected with drawing power component in advance.

2. The pre-draw tensioning system of a netting machine of claim 1, wherein: a tension roller supporting assembly is arranged on the rack between the two groups of tensioning supports (32), the tension roller supporting assembly comprises a tensioning supporting seat (45), a polyurethane roller (46), a tensioning middle sliding block (47), a middle sliding block cover plate (48) and a tensioning middle upper cover (49), wherein the bottom of the tensioning supporting seat (45) is fixed on the rack, the rear end of the tensioning supporting seat (45) extends upwards to form a supporting column, the upper part of the front side of the supporting column is expanded to form a guide rail, the rear side of the tensioning middle sliding block (47) is provided with a guide groove, the guide groove is embedded with the guide rail, the middle sliding block cover plate (48) is arranged at the top of the tensioning middle sliding block (47), the tensioning middle upper cover plate (49) is arranged at the top of the supporting column, a tensioning adjusting screw rod is meshed with a tensioning handle, and the bottom of the tensioning adjusting screw rod is downwards connected with the top of the middle sliding block cover plate (48), a first tension hole is formed in the upper part of the tensioning middle sliding block (47), and a first tension bearing ring is sleeved in the first tension hole; two second tension adjusting rollers (35) and two first tension adjusting rollers (34) are respectively positioned at two sides of the tensioning middle sliding block (47), one end of each first tension adjusting roller (34) is sleeved in the first tension bearing ring, the other end of each first tension adjusting roller is sleeved in the corresponding tensioning bracket (32), a strip-shaped second tension hole is formed in the lower portion of the tensioning middle sliding block (47), the second tension holes are distributed in the vertical direction of the tensioning middle sliding block (47), one end of each second tension adjusting roller (35) is movably sleeved in the corresponding tension hole, and the other end of each second tension adjusting roller is sleeved in the corresponding tensioning bracket (32); support columns below the guide rails are recessed backwards to form a main shaft transition groove, polyurethane rollers (46) are mounted on the support columns at the middle part and the bottom of the main shaft transition groove, the middle part of the main shaft is located in the main shaft transition groove, and the wheel surfaces of the polyurethane rollers (46) are respectively abutted against the peripheral surfaces of the rear side and the bottom of the main shaft.

3. The pre-draw tensioning system of a netting machine of claim 1, wherein: the two yarn threading plates (3) are respectively positioned on two sides of the tensioning supporting seat (45), one end of each yarn threading plate (3) is connected with the upper part of the rear side of the tensioning supporting seat (45), the other end of each yarn threading plate is connected with the corresponding tensioning support (32), and a plurality of yarn threading holes are uniformly distributed in the yarn threading plates (3) along the length direction of the plate body.

4. The pre-draw tensioning system of a netting machine of claim 1, wherein: the pre-pumping power assembly comprises a pre-pumping motor mounting frame (20), a pre-pumping bearing seat (19) and a pre-pumping speed reducer (22), wherein the pre-pumping motor mounting frame (20) is mounted on the outer side of a tensioning support (32), the pre-pumping bearing seat (19) is mounted on the tensioning support (32) on the inner side of the pre-pumping motor mounting frame (20), the pre-pumping speed reducer (22) is mounted on the outer side of the pre-pumping motor mounting frame (20), the pre-pumping speed reducer (22) is driven to operate by a corresponding pre-pumping motor, and the end part of a pre-pumping driving shaft (2) penetrates through the pre-pumping bearing seat (19) and is connected with an output shaft of the pre-pumping speed reducer (22).

5. The pre-draw tensioning system of a netting machine of claim 1, wherein: install backup pad (4) that quantity is greater than 2 in the frame between two sets of tensioning support (32), backup pad (4) bottom both ends outside level extends and forms the fixed block, the fixed block is connected with the frame, backup pad (4) top center department consolidates the platform in the middle of the upwards protruding formation, it installs at the middle platform top of consolidating and wears the yarn board support frame, it is connected with wearing yarn board (3) to wear yarn board support frame upper portion, it forms the support arm to strengthen the upwards vertical extension of backup pad (4) tip of platform rear side in the middle, the support arm top is bent to rear side level and is formed the linking arm, support arm upper portion is to wearing protruding bearing platform that forms of yarn board support frame direction, install pre-pumping bearing frame (19) on the bearing platform, pre-pumping bearing frame (19) and pre-pumping drive shaft (2) registrate.

6. The pre-draw tensioning system of a netting machine of claim 1, wherein: the two sides of the bottom of a tensioning support (32) are expanded to form connecting blocks, the connecting blocks are connected with a rack through support bolts, the top of the tensioning support (32) is recessed downwards to form a U-shaped sliding limiting groove (30), tensioning end sliding blocks (29) are movably installed in the sliding limiting groove (30), penetrating upper tension adjusting roller shaft holes (57) are formed in the upper portions of the tensioning end sliding blocks (29), strip-shaped lower tension adjusting roller shaft holes (58) are formed in the lower portions of the tensioning end sliding blocks (29), the lower tension adjusting roller shaft holes (58) are distributed in the vertical direction of the tensioning end sliding blocks (29), end sliding block cover plates (28) are connected to the tops of the tensioning end sliding blocks (29) through sliding block bolts (17), tensioning side upper covers (16) are installed on the tensioning support (32) at the top of the sliding limiting groove (30), vertically penetrating screw bolt holes are formed in the upper covers (16) on the tensioning side, and tensioning screw bolts (14) are engaged in the screw bolt holes, the top of the tensioning stud (14) is upwards connected with the hand wheel (12), the bottom of the tensioning stud (14) is downwards connected with the end part sliding block cover plate (28), the first tension adjusting roller (34) is sleeved in the upper tension adjusting roller shaft hole (57), and the second tension adjusting roller (35) is movably sleeved in the lower tension adjusting roller shaft hole (58).

7. The pre-draw tensioning system of a netting machine of claim 1, wherein: the middle of the pre-pumping driving shaft (2) is sleeved with a warp pre-pumping connecting rod (54), the top of the warp pre-pumping connecting rod (54) is provided with a sleeve hole, an oil-free bush is sleeved in the sleeve hole, two warp pre-pumping rollers (1) are respectively positioned on two sides of the warp pre-pumping connecting rod (54), one end of each warp pre-pumping roller (1) is sleeved in the oil-free bush, the other end of each warp pre-pumping roller is sleeved at the top of a warp end connecting rod (9), and the bottom of each warp end connecting rod (9) is connected with the end of the pre-pumping driving shaft (2).