CN111185546A

CN111185546A - Automatic fixed-length cutting device for reinforcing steel bars

Info

Publication number: CN111185546A
Application number: CN202010266262.8A
Authority: CN
Inventors: 麻玲琼
Original assignee: Zhuji Nuoda Machinery Technology Co ltd
Current assignee: Zhuji Nuoda Machinery Technology Co ltd
Priority date: 2020-04-07
Filing date: 2020-04-07
Publication date: 2020-05-22

Abstract

The invention discloses an automatic fixed-length cutting device for reinforcing steel bars, which comprises a machine body, wherein a left working cavity and a right working cavity which are communicated are arranged in the machine body, a cutting cavity communicated with the working cavity is arranged below the working cavity, a belt wheel cavity is arranged at the rear side of the cutting cavity, a cutting mechanism is arranged in the cutting cavity, the cutting mechanism comprises a rotating shaft which is rotatably arranged in a wall body at the rear end of the cutting cavity, the rear end of the rotating shaft extends into the belt wheel cavity and is fixedly provided with a driven belt wheel, feeding cavities penetrating through the working cavity are arranged at two sides of the working cavity, a gear cavity is arranged at the front side of the feeding cavity, a feeding mechanism is arranged between the feeding cavity and the gear cavity, an engaging groove is arranged above the feeding cavity, an adjusting mechanism is arranged between the engaging groove and the feeding cavity, a variable-speed cavity is arranged below the cutting cavity, and a variable.

Description

Automatic fixed-length cutting device for reinforcing steel bars

Technical Field

The invention relates to the technical field of building materials, in particular to an automatic fixed-length cutting device for reinforcing steel bars.

Background

Building materials are a general term for materials used in civil engineering and construction. It can be divided into structural material, decorative material and some special materials. The structural materials comprise wood, bamboo, stone, cement, concrete, metal, tiles, ceramics, glass, engineering plastics, composite materials and the like. In the building engineering, the steel bar is a building material with very large use amount and use frequency. When the reinforcing steel bar is used, the reinforcing steel bar is often cut according to actual needs, so the cutting of the reinforcing steel bar is an important work for building construction. However, most of the existing steel bar cutting devices still adopt manual operation cutting, but the manual cutting often has uneven stress, any cutting deviation can cause the waste of materials, and the manual cutting cannot accurately control the length of the steel bar. Meanwhile, the cutting length of the reinforcing steel bars with different specifications cannot be adjusted according to the use requirements, and the defects of complex operation and low cutting efficiency exist.

Disclosure of Invention

Aiming at the technical defects, the invention provides an automatic fixed-length cutting device for steel bars, which can overcome the defects.

The automatic fixed-length cutting device for the steel bars comprises a machine body, wherein a left working cavity and a right working cavity which are communicated are arranged in the machine body, a cutting cavity communicated with the working cavity is arranged below the working cavity, a belt wheel cavity is arranged at the rear side of the cutting cavity, a cutting mechanism is arranged in the cutting cavity and comprises a rotating shaft which is rotatably arranged in a wall body at the rear end of the cutting cavity, the rear end of the rotating shaft extends into the belt wheel cavity and is fixedly provided with a driven belt wheel, mounting blocks which are rotatably connected with the rotating shaft are symmetrically arranged in the cutting cavity in a front-back mode, a supporting rod is fixedly arranged at the upper end of each mounting block, a cutting wheel is rotatably arranged at the upper end of each supporting rod, rotating blocks which are fixedly connected with the rotating shaft are symmetrically arranged in the cutting cavity in a front-back mode, a cutting groove is formed in each rotating block, a fixed shaft is fixedly arranged in each rotating block, the cutting device is characterized in that a rotating plate which is located below the fixed sleeve and is connected with the fixed shaft in a rotating mode is arranged in the cutting groove, a stroke groove is formed in the rotating plate, a connecting shaft is arranged between the stroke grooves in a sliding mode, a stop block is fixedly arranged at the outer end of the connecting shaft, a reset spring connected with the rotating plate in a surrounding mode is arranged on the connecting shaft, a pressing block is fixedly arranged on the rotating plate, a cutting knife is fixedly arranged in the pressing block, two sides of the working cavity are provided with feeding cavities penetrating through the working cavity, a gear cavity is arranged on the front side of the feeding cavity, a feeding mechanism is arranged between the feeding cavity and the gear cavity, a meshing groove is formed in the upper portion of the feeding cavity, an adjusting mechanism is arranged between the meshing groove and the feeding cavity, a speed change cavity is arranged below the cutting cavity.

Preferably, the feeding mechanism comprises a moving plate which is slidably mounted in the feeding cavity, the feeding cavity is communicated with the gear cavity through a sliding groove, an upper feeding shaft is rotatably arranged in the moving plate, an upper feeding wheel fixedly connected with the upper feeding shaft is arranged in the feeding cavity, the front end of the upper feeding shaft penetrates through the sliding groove to extend into the gear cavity and is fixedly provided with an upper fluted disc, a lower feeding shaft penetrating through the feeding cavity is rotatably arranged in the machine body, a lower feeding wheel fixedly connected with the lower feeding shaft is arranged in the feeding cavity, the front end of the lower feeding shaft extends into the gear cavity and is fixedly provided with a lower fluted disc, a transmission shaft penetrating through the gear cavity is rotatably arranged in the machine body, and a power gear which is fixedly connected with the transmission shaft and is meshed with the upper fluted disc and the lower fluted disc is arranged in the gear cavity, and the lower end of the transmission shaft extends into the transmission groove and is fixedly provided with a transmission bevel gear.

Preferably, the adjusting mechanism comprises a threaded block which is slidably mounted in the upper end wall body of the feeding cavity and is fixedly connected with the movable plate, a screw is arranged in the threaded block in a threaded manner, the upper end of the screw extends into the meshing groove and is fixedly provided with a driven bevel gear, a driving shaft is rotatably arranged in the machine body, the left end of the driving shaft extends into the meshing groove and is fixedly provided with a driving bevel gear meshed with the driven bevel gear, and the right end of the driving shaft extends out of the machine body and is fixedly provided with a distance-adjusting rotating wheel.

Preferably, the speed change mechanism comprises a driven shaft rotatably mounted between the speed change cavity and the belt wheel cavity, the rear end of the driven shaft extends into the belt wheel cavity and is fixedly provided with a driving belt wheel, the driving belt wheel is in power connection with the driven belt wheel through a belt, the front end of the driven shaft extends into the speed change cavity and is fixedly provided with a friction disc, the machine body is rotatably provided with a lead screw penetrating through the speed change cavity, the left end of the lead screw extends out of the machine body and is fixedly provided with a speed regulation rotating wheel, the speed change cavity is internally provided with a threaded sleeve in threaded connection with the lead screw, the front end of the speed change cavity is fixedly provided with a limiting block in rotational connection with the lead screw, the machine body is rotatably provided with a power shaft penetrating through the speed change cavity and the transmission groove, the speed change cavity is internally provided with a spline sleeve in splined connection with the power shaft and in rotational connection, the spline sleeve is fixedly provided with a friction wheel in friction fit with the friction disc, the transmission groove is internally provided with a power bevel gear which is fixedly connected with the power shaft and is meshed with the transmission bevel gear, and the right end of the power shaft extends into the machine body and is provided with a motor in a power mode.

The beneficial effects are that: the device is simple to operate and high in cutting efficiency, the motor drives the rotating block to rotate to drive the cutting knife to cut the reinforcing steel bars at a fixed length, and the length of the reinforcing steel bars can be accurately controlled; in addition, the speed of the rotating block during rotation can be changed through a speed change mechanism, so that the purpose of changing the fixed-length cutting length of the reinforcing steel bars is achieved; the distance between the upper feeding wheel and the lower feeding wheel can be changed by rotating the distance adjusting rotating wheel to feed the reinforcing steel bars with different specifications, so that the practicability of the device is greatly improved.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of the present embodiment;

FIG. 2 is a schematic view taken at A-A in FIG. 1 according to an embodiment of the present invention;

FIG. 3 is a schematic view of the embodiment of the present invention at B-B in FIG. 1;

FIG. 4 is a schematic view at C-C in FIG. 1 according to an embodiment of the present invention;

FIG. 5 is an enlarged view of the structure shown at D in FIG. 1 according to an embodiment of the present invention;

fig. 6 is an enlarged schematic view of the structure at E in fig. 2 according to an embodiment of the present invention.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

The invention will now be described in detail with reference to fig. 1-6, for convenience of description, the following orientations will now be defined: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The invention relates to an automatic fixed-length cutting device for reinforcing steel bars, which comprises a machine body 10, wherein a left-right through working cavity 12 is arranged in the machine body 10, a cutting cavity 16 communicated with the working cavity 12 is arranged below the working cavity 12, a belt wheel cavity 61 is arranged at the rear side of the cutting cavity 16, an automatic fixed-length cutting mechanism is arranged in the cutting cavity 16, the cutting mechanism comprises a rotating shaft 15 rotatably arranged in the wall body at the rear end of the cutting cavity 16, the rear end of the rotating shaft 15 extends into the belt wheel cavity 61 and is fixedly provided with a driven belt wheel 58, mounting blocks 13 rotatably connected with the rotating shaft 15 are symmetrically arranged in the cutting cavity 16 in a front-back mode, a supporting rod 11 is fixedly arranged at the upper end of each mounting block 13, a cutting wheel 40 is rotatably arranged at the upper end of each supporting rod 11, rotating blocks 14 fixedly connected with the rotating shaft 15 are symmetrically arranged in the cutting cavity 16 in the front-back mode, a cutting groove, a fixed shaft 48 is fixedly arranged in the rotating block 14, the upper end of the fixed shaft 48 extends into the cutting groove 44 and is fixedly provided with a fixed sleeve 47, a rotating plate 49 which is positioned below the fixed sleeve 47 and is rotationally connected with the fixed shaft 48 is arranged in the cutting groove 44, a stroke groove 50 is arranged in the rotating plate 49, a connecting shaft 46 is arranged between the stroke grooves 50 in a sliding manner, a stop block 41 is fixedly arranged at the outer end of the connecting shaft 46, a return spring 45 surrounding the connecting shaft 46 is fixedly connected between the rotating plates 49, a pressing block 42 is fixedly arranged on the rotating plate 49, a cutting knife 43 is fixedly arranged in the pressing block 42, feeding cavities 29 penetrating through the working cavity 12 are arranged on two sides of the working cavity 12, a gear cavity 57 is arranged on the front side of the feeding cavity 29, a feeding mechanism suitable for reinforcing steel bars with different diameters is arranged between the feeding cavity 29 and the gear cavity 57, and an engagement groove 38 is arranged above the feeding cavity 29, an adjusting mechanism for adjusting the diameter of the fed steel bars is arranged between the engaging groove 38 and the feeding cavity 29, a variable speed cavity 20 is arranged below the cutting cavity 16, and a variable speed mechanism for adjusting the automatic cutting length is arranged in the variable speed cavity 20.

Advantageously, the feeding mechanism comprises a moving plate 32 slidably mounted in the feeding cavity 29, the feeding cavity 29 is communicated with the gear cavity 57 through a sliding groove 55, an upper feeding shaft 31 is rotatably arranged in the moving plate 32, an upper feeding wheel 30 fixedly connected with the upper feeding shaft 31 is arranged in the feeding cavity 29, the front end of the upper feeding shaft 31 extends into the gear cavity 57 through the sliding groove 55 and is fixedly provided with an upper fluted disc 56, a lower feeding shaft 51 extending through the feeding cavity 29 is rotatably arranged in the machine body 10, a lower feeding wheel 52 fixedly connected with the lower feeding shaft 51 is arranged in the feeding cavity 29, the front end of the lower feeding shaft 51 extends into the gear cavity 57 and is fixedly provided with a lower fluted disc 53, a transmission shaft 28 extending through the gear cavity 57 is rotatably arranged in the machine body 10, a power gear 54 fixedly connected with the transmission shaft 28 and meshed with the upper fluted disc 56 and the lower fluted disc 53 is arranged in the gear cavity 57, the lower end of the transmission shaft 28 extends into the transmission groove 25 and is fixedly provided with a transmission bevel gear 27.

Advantageously, the adjusting mechanism comprises a threaded block 33 slidably mounted in the upper end wall body of the feeding cavity 29 and fixedly connected with the moving plate 32, a screw 39 is threadedly arranged in the threaded block 33, the upper end of the screw 39 extends into the meshing groove 38 and is fixedly provided with a driven bevel gear 37, a driving shaft 35 is rotatably arranged in the machine body 10, the left end of the driving shaft 35 extends into the meshing groove 38 and is fixedly provided with a driving bevel gear 36 meshed with the driven bevel gear 37, and the right end of the driving shaft 35 extends out of the machine body 10 and is fixedly provided with an adjusting rotating wheel 34.

Advantageously, the speed change mechanism comprises a driven shaft 21 rotatably mounted between the speed change cavity 20 and the pulley cavity 61, a rear end of the driven shaft 21 extends into the pulley cavity 61 and is fixedly provided with a driving pulley 60, the driving pulley 60 is in power connection with the driven pulley 58 through a belt 59, a front end of the driven shaft 21 extends into the speed change cavity 20 and is fixedly provided with a friction disc 22, a lead screw 18 penetrating through the speed change cavity 20 is rotatably arranged in the machine body 10, a left end of the lead screw 18 extends out of the machine body 10 and is fixedly provided with an adjustable speed pulley 17, a threaded sleeve 19 in threaded connection with the lead screw 18 is arranged in the speed change cavity 20, a limit block 65 in rotatable connection with the lead screw 18 is fixedly arranged at the front end of the speed change cavity 20, a power shaft 23 penetrating through the speed change cavity 20 and the transmission groove 25 is rotatably arranged in the machine body 10, and a spline connection with the power shaft 23 and is arranged in the speed change cavity 20 and is rotatably connected with the splined sleeve 19 A friction wheel 63 in friction fit with the friction disc 22 is fixedly arranged on the spline housing 62, a power bevel gear 24 fixedly connected with the power shaft 23 and meshed with the transmission bevel gear 27 is arranged in the transmission groove 25, and the right end of the power shaft 23 extends into the machine body 10 and is provided with a motor 26 in a power mode.

In the initial state, the return spring 45 is in a natural state, and the moving plate 32 is at the upper end position in the feeding cavity 29;

when the machine starts to work, a worker firstly places a steel bar to be cut on the upper end of the lower feeding wheel 52, then rotates the distance adjusting rotating wheel 34 along the pointer, the distance adjusting rotating wheel 34 can drive the driving bevel gear 36 to rotate through the driving shaft 35, the driving bevel gear 36 can drive the screw rod 39 to rotate through the driven bevel gear 37, the screw rod 39 can drive the movable plate 32 to move downwards through the thread block 33, the movable plate 32 can drive the upper feeding wheel 30 to move downwards through the upper feeding shaft 31, and the distance adjusting rotating wheel 34 stops rotating when the upper feeding wheel 30 moves to be in contact with the outer surface of the steel bar, then the speed regulating rotating wheel 17 is rotated according to the requirement to regulate the length of the fixed-length cutting of the reinforcing steel bar, the speed regulating rotating wheel 17 can drive the thread bush 19 to move left and right through the screw rod 18, the thread bush 19 can drive the friction wheel 63 to move left and right through the spline bush 62, when the friction wheel 63 moves to the right, the speed of the friction disc 22 during rotation can be increased, so that the length of the fixed-length cutting of the steel bars is reduced; when the friction wheel 63 moves leftwards, the speed of the friction disc 22 during rotation can be reduced, so that the length of the fixed-length cutting of the reinforcing steel bars is increased; after the adjustment is finished, controlling the motor 26 to be started in the forward direction, driving the power bevel gear 24 to rotate by the motor 26 through the power shaft 23, driving the transmission shaft 28 to rotate by the power bevel gear 27 by the power bevel gear 24, driving the upper fluted disc 56 to rotate by the transmission shaft 28 through the power gear 54, driving the upper feeding wheel 30 to rotate by the upper feeding shaft 31 by the upper fluted disc 56, driving the lower feeding shaft 51 to rotate by the power gear 54 through the lower fluted disc 53, driving the lower feeding wheel 52 to rotate by the lower feeding shaft 51, and feeding the reinforcing steel bars to the left due to the rotation in the opposite directions between the upper feeding wheel 30 and the lower feeding wheel 52; in addition, the power shaft 23 can drive the friction wheel 63 to rotate through the spline housing 62, the friction wheel 63 can drive the driven shaft 21 to rotate through the friction disc 22, the driven shaft 21 can drive the driving pulley 60 to rotate, the driving pulley 60 can drive the driven pulley 58 to rotate through the belt 59, the driven pulley 58 can drive the rotating block 14 to rotate through the rotating shaft 15, the rotating block 14 can drive the cutting knife 43 to rotate around the rotating shaft 15 through the pressing block 42, when the pressing block 42 rotates to be in contact with the cutting wheel 40, the cutting wheel 40 can drive the cutting knife 43 to move inwards around the fixing shaft 48 through the pressing block 42, therefore, the steel bars can be cut off, the reset spring 45 can drive the cutting knife 43 to reset, when the pressing block 42 rotates again to be in contact with the cutting wheel 40, the next cutting.

The above description is only an embodiment of the invention, but the scope of the invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the invention. Therefore, the protection scope of the invention should be subject to the protection scope defined by the claims.

Claims

1. The utility model provides an automatic fixed length cutting device of reinforcing bar, includes the organism, be equipped with the working chamber that link up about in the organism, its characterized in that: a cutting cavity communicated with the working cavity is arranged below the working cavity, a belt wheel cavity is arranged at the rear side of the cutting cavity, a cutting mechanism is arranged in the cutting cavity and comprises a rotating shaft rotatably mounted in the wall body at the rear end of the cutting cavity, the rear end of the rotating shaft extends into the belt wheel cavity and is fixedly provided with a driven belt wheel, mounting blocks rotatably connected with the rotating shaft are symmetrically arranged in the cutting cavity front and back, a supporting rod is fixedly arranged at the upper end of the mounting blocks, a cutting wheel is rotatably arranged at the upper end of the supporting rod, rotating blocks fixedly connected with the rotating shaft are symmetrically arranged in the cutting cavity front and back, a cutting groove is arranged in the rotating blocks, a fixed shaft is fixedly arranged in the rotating blocks, a fixed sleeve is fixedly arranged at the upper end of the fixed shaft, and a rotating plate which is positioned below the fixed sleeve and is rotatably connected with the fixed shaft is arranged in the cutting groove, the rotary plate is provided with a stroke groove, a connecting shaft is arranged between the stroke grooves in a sliding mode, a stop block is fixedly arranged at the outer end of the connecting shaft, a reset spring connected with the rotary plate is arranged between the rotary plate and surrounds the connecting shaft, a pressing block is fixedly arranged on the rotary plate, a cutting knife is fixedly arranged in the pressing block, feeding cavities penetrating through the working cavities are arranged on two sides of the working cavities, a gear cavity is arranged on the front side of each feeding cavity, a feeding mechanism is arranged between each feeding cavity and the gear cavity, a meshing groove is arranged above each feeding cavity, an adjusting mechanism is arranged between each meshing groove and the corresponding feeding cavity, a speed change cavity is arranged below each cutting cavity, and a speed change mechanism is arranged in each speed change cavity.

2. The automatic fixed-length cutting device for the steel bars as claimed in claim 1, wherein: the feeding mechanism comprises a moving plate which is slidably arranged in the feeding cavity, the feeding cavity is communicated with the gear cavity through a sliding groove, an upper feeding shaft is rotatably arranged in the moving plate, an upper feeding wheel fixedly connected with the upper feeding shaft is arranged in the feeding cavity, the front end of the upper feeding shaft penetrates through the sliding groove to extend into the gear cavity and is fixedly provided with an upper fluted disc, a lower feeding shaft penetrating through the feeding cavity is rotatably arranged in the machine body, a lower feeding wheel fixedly connected with the lower feeding shaft is arranged in the feeding cavity, the front end of the lower feeding shaft extends into the gear cavity and is fixedly provided with a lower fluted disc, a transmission shaft penetrating through the gear cavity is rotatably arranged in the machine body, and a power gear which is fixedly connected with the transmission shaft and is meshed with the upper fluted disc and the lower fluted disc is arranged in the gear cavity, and the lower end of the transmission shaft extends into the transmission groove and is fixedly provided with a transmission bevel gear.

3. The automatic fixed-length cutting device for the steel bars as claimed in claim 1, wherein: the adjusting mechanism comprises a thread block which is slidably installed in the upper end wall body of the feeding cavity and fixedly connected with the movable plate, a screw is arranged in the thread block in a threaded mode, the upper end of the screw extends into the meshing groove and is fixedly provided with a driven bevel gear, a driving shaft is rotatably arranged in the machine body, the left end of the driving shaft extends into the meshing groove and is fixedly provided with a driving bevel gear meshed with the driven bevel gear, and the right end of the driving shaft extends out of the machine body and is fixedly provided with a distance adjusting rotating wheel.

4. The automatic fixed-length cutting device for the steel bars as claimed in claim 1, wherein: the speed change mechanism comprises a driven shaft which is rotatably arranged between the speed change cavity and the belt wheel cavity, the rear end of the driven shaft extends into the belt wheel cavity and is fixedly provided with a driving belt wheel, the driving belt wheel is in power connection with the driven belt wheel through a belt, the front end of the driven shaft extends into the speed change cavity and is fixedly provided with a friction disc, a lead screw which penetrates through the speed change cavity is rotatably arranged in the machine body, the left end of the lead screw extends out of the machine body and is fixedly provided with a speed regulation rotating wheel, a threaded sleeve which is in threaded connection with the lead screw is arranged in the speed change cavity, a limiting block which is in rotational connection with the lead screw is fixedly arranged at the front end of the speed change cavity, a power shaft which penetrates through the speed change cavity and the transmission groove is rotatably arranged in the machine body, a spline sleeve which is in splined connection with the power shaft and is in rotational connection with the threaded sleeve is arranged in the speed change cavity, and a power bevel gear fixedly connected with the power shaft and meshed with the transmission bevel gear is arranged in the transmission groove, and the right end of the power shaft extends into the machine body and is provided with a motor in a power mode.