CN114346737A

CN114346737A - Automatic bar feeder

Info

Publication number: CN114346737A
Application number: CN202111454044.8A
Authority: CN
Inventors: 宋卡迪; 罗高昇; 陈水平; 张科达; 樊永江; 郎滨; 沈守稳
Original assignee: Ningbo Changzhen Copper Co ltd
Current assignee: Ningbo Changzhen Copper Co ltd
Priority date: 2021-12-01
Filing date: 2021-12-01
Publication date: 2022-04-15
Anticipated expiration: 2041-12-01
Also published as: CN114346737B

Abstract

The invention discloses an automatic bar feeder which comprises a rack, and a chain type conveying mechanism, a material turning mechanism and a material ejecting clamping mechanism which are sequentially arranged in the front and at the back along the feeding direction, wherein the front side and the back side of the material turning mechanism are respectively provided with a material area to be turned and a material area to be ejected; the automatic bar feeder can automatically and continuously separate a whole bundle of bars, can automatically separate straight bars and bent bars with poor straightness in the whole process, does not need manual carrying, can reduce the labor intensity of workers and has high safety; the automatic bar bending machine fills the gap that the bent bars cannot be automatically separated in the prior art, realizes automatic production, improves the working efficiency, lightens the labor intensity of workers, and can be used for front-end feeding of metal processing equipment such as a straightening machine, a cutting machine, a coreless lathe, a head peeling machine, a wire drawing machine and the like.

Description

Automatic bar feeder

Technical Field

The invention relates to a metal bar separating device, in particular to an automatic bar feeding machine.

Background

In the production process of metal bars such as copper bars, steel bars and the like, the metal bars are often separated from a material rack one by one and are transferred to metal processing equipment such as a straightening machine, a cutting machine, a coreless lathe, a head peeling machine, a wire drawing machine and the like. The length of the metal bar is usually 2-6 meters, and a single bar weighs more than 5 kilograms. The existing operation mode is that after a whole bundle of bars is hoisted to a material rack, an operator puts the bars orderly by means of dragging, dragging and swinging by hands, and then ejects the single bar by an ejection device and conveys the single bar to subsequent metal processing equipment. Because the bar stock is heavier, the labor intensity of operators is high, the efficiency is low, and the hidden trouble that the hands are crushed exists. Especially for bent rods with poor straightness, each rod needs manual intervention to be separated and enter subsequent metal processing equipment.

Disclosure of Invention

The technical problem to be solved by the invention is to provide an automatic bar feeder which has high automation degree and is convenient to operate aiming at the defects of the prior art.

The technical scheme adopted by the invention for solving the technical problems is as follows: the automatic bar feeder comprises a rack, and a chain type conveying mechanism, a material turning mechanism and an ejection clamping mechanism which are sequentially arranged on the rack along the feeding direction, wherein the chain type conveying mechanism is driven by a first motor, the front side and the rear side of the material turning mechanism are respectively provided with a material area to be turned and a material area to be ejected, the material area to be turned is provided with a slope, the chain type conveying mechanism is used for conveying bars to the material area to be turned, the material turning mechanism is used for turning the bars to be conveyed to the material area to be ejected from the material area to be turned, the material turning mechanism comprises a main shaft, a second motor and a plurality of impellers, the main shaft is driven by the second motor, the impellers are fixed at intervals along the length direction of the main shaft, the ejection clamping mechanism is arranged at one end of the rear side of the rack, and the ejection clamping mechanism comprises an upper jaw, an upright ejection clamping cylinder and a lower jaw, the upper side of the material area to be ejected is provided with a bridge, the upper jaw is fixed at one end of the bridge and is positioned at the upper side of the material area to be ejected, the lower jaw is driven by the ejecting clamping cylinder and is positioned under the upper jaw, the side surface of the lower jaw is provided with a material hooking mechanism, the material hooking mechanism comprises a material hooking cylinder and a material hooking block driven by the material hooking cylinder, the bridge is provided with a movable trolley, the trolley is provided with a material grabbing mechanism, the material grabbing mechanism comprises an inverted lifting cylinder, a finger cylinder and a gripper, the lifting cylinder, the finger cylinder and the gripper are sequentially connected from top to bottom, the gripper is opposite to the upper jaw, the lower side of the gripper is provided with a movable material guiding mechanism, and during operation, the material hooking mechanism hooks bars in the material area to be ejected to the top end of the lower jaw, the material ejecting clamping cylinder lifts the lower jaw, one end of the bar is clamped up and down by the upper jaw and the lower jaw, the trolley moves to the position near the upper jaw to grab the bar and moves to the other end of the bar along the bar to release the bar, part of the bar falls to the material guiding mechanism, and finally the material ejecting clamping cylinder drives the lower jaw to move downwards, so that the bar falls on the material guiding mechanism completely, and the bar is guided to subsequent machining equipment by the material guiding mechanism.

The automatic bar feeder can automatically and continuously separate the whole bundle of bars, can automatically separate straight bars and bent bars with poor straightness in the whole process, does not need manual transportation, can reduce the manual labor intensity, and has high safety.

Preferably, the chain type conveying mechanism comprises a plurality of groups of conveying units, the plurality of groups of conveying units are arranged at intervals along the length direction of the rack, each group of conveying units comprises a driving sprocket, a driven sprocket, a first chain and a second chain, the output end of the first motor is connected with the driving sprocket through the first chain, the driving sprocket is connected with the driven sprocket through the second chain, the driven sprocket is installed at the front end of the rack through a tightness adjusting bolt, a transmission shaft is installed on the rack, and the driving sprockets of the plurality of groups of conveying units are respectively installed on the transmission shaft. Drive driving sprocket through first motor and rotate, and then drive the transmission of second chain for place the rod on the second chain and can move and wait to overturn the material district.

Preferably, a support is fixed on the bridge frame, an adjusting rod with adjustable vertical position and front and back inclination angles is installed on the support, a material limiting block is fixed at the bottom of the adjusting rod and located on the upper side of the material area to be jacked, and the material limiting block is used for preventing bars from being stacked. The distance between the bottom end of the material limiting block and the slope surface of the material area to be ejected is slightly larger than the diameter of a single rod by adjusting the height and the gradient of the material limiting block, so that the material area to be ejected is orderly arranged one by one without being stacked, and the automatic separation effect of the rods is ensured.

Preferably, two first sliding rails are symmetrically connected to two sides of the output end of the material ejecting clamping cylinder, two groups of first sliding blocks are symmetrically arranged on the outer side wall of the cylinder body of the material ejecting clamping cylinder, and each first sliding rail is assembled on one group of first sliding blocks in a vertically sliding manner. First slide rail and the cooperation of first slider are favorable to improving the lower reliability of keeping silent to the rod action of lifting, make the one end that the upper jaw can be accurate, firmly press from both sides the rod with keeping silent down.

Preferably, two second sliding rails are symmetrically connected to two sides of the output end of the lifting cylinder, two groups of second sliding blocks are symmetrically arranged on the outer side wall of the cylinder body of the lifting cylinder, and each second sliding rail is assembled on one group of second sliding blocks in a vertically sliding manner. The second slide rail is matched with the second slide block, so that the accuracy and the reliability of the grabbing action of the bar material grabbing mechanism are improved.

Preferably, the bridge frame is provided with a servo motor, a guide rail and a rack, the trolley is provided with a third sliding block and a gear, the third sliding block and the gear are matched with the guide rail and the rack, and the gear is connected with the output end of the servo motor. The guide rail is matched with the first sliding block, and the rack is matched with the gear, so that double guarantee can be achieved, and the trolley can rapidly and reliably move in a reciprocating mode along the guide rail.

Preferably, the material guiding mechanism comprises a plurality of groups of material guiding units, each group of material guiding units comprises a material guiding block, an upright material guiding cylinder, a rotating shaft and a rotating cylinder, the material guiding block, the upright material guiding cylinder, the rotating shaft and the rotating cylinder are sequentially connected from top to bottom, the top surface of the material guiding block is an inclined surface, a shaft sleeve is sleeved on the outer side of the rotating shaft, a plurality of bearings are installed between the rotating shaft and the shaft sleeve, and the output end of the rotating cylinder is connected with the cylinder body of the material guiding cylinder through a Y-shaped pull ring. Before the gripper grabs the bar, the material guide blocks of the plurality of groups of material guide units are positioned below the rear side of the material area to be jacked, when the gripper grabs the bar and moves to the other end of the bar along with the trolley, the trolley passes through one group of material guide units, the material guiding cylinder of the group of material guiding units firstly pushes the material guiding block to move upwards, then pushes the material guiding cylinder and the material guiding block to integrally rotate until the top surface of the material guiding block inclines to the subsequent machining equipment from top to bottom, when the material guide blocks of the plurality of groups of material guide units move upwards and rotate in place, the gripper loosens the rod material to make part of the rod material fall to the plurality of material guide blocks, then the material ejecting clamping cylinder drives the lower jaw to move downwards, so that the bars fall on the plurality of material guiding blocks and automatically slide down to a preset position along the top surfaces of the plurality of material guiding blocks, and then, the material guiding blocks of the plurality of groups of material guiding units rotate to return and move downwards at the same time, return to the original position and wait for the next upward movement and rotation.

Preferably, the upper end of the cylinder body of the material guiding cylinder is provided with a fixed block, the lower end of the material guiding block is fixedly provided with a guide rod, and the guide rod can penetrate through the fixed block in a vertically movable manner. The guide rod is matched with the fixed block, so that the reliability of the up-and-down movement of the material guide block can be improved.

Preferably, a plurality of upright fixing plates are fixed on the rack at intervals in the length direction, and the material area to be turned and the material area to be jacked are respectively arranged on the upper sides of the fixing plates. The design of above-mentioned fixed plate conveniently treats the affirmation in upset material district and the material district of treating the top, is convenient for the installation of stirring mechanism simultaneously.

Preferably, a limiting plate is fixed at one end of the rack in the length direction. So as to prevent the bar from sideslip and ensure the safety.

Compared with the prior art, the invention has the following advantages: the automatic bar feeder can automatically and continuously separate the whole bundle of bars, can automatically separate straight bars and bent bars with poor straightness in the whole process, does not need manual transportation, can reduce the manual labor intensity, and has high safety. The automatic bar feeder fills the blank that the bent bars cannot be automatically separated in the prior art, realizes automatic production, improves the working efficiency, lightens the labor intensity of workers, can be used for front-end feeding of metal processing equipment such as a straightening machine, a cutting machine, a coreless lathe, a head peeling machine, a wire drawing machine and the like, and solves the defect that the whole bundle of bars can be separated only by manually dragging, dragging and swinging in the traditional processing operation.

Drawings

FIG. 1 is an external view of an automatic bar feeder according to an embodiment;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is a side view of the chain conveyor of the embodiment shown in the installed state;

FIG. 4 is a side view of the effect of the material turning mechanism after installation in the embodiment;

FIG. 5 is a side view of an exemplary ejector clamping mechanism;

FIG. 6 is a partial sectional view of the ejector clamping mechanism in the embodiment;

FIG. 7 is a side view of the hook mechanism of the embodiment;

FIG. 8 is a side view of the effect of the embodiment after the installation of the limiting block;

FIG. 9 is a side view of the cart in the embodiment after installation;

FIG. 10 is a side view of the cart in the example;

FIG. 11 is a structural sectional view of a material grabbing mechanism in the embodiment;

FIG. 12 is an external view of a material guiding unit in an embodiment;

fig. 13 is a partial structural sectional view of a material guide unit in the embodiment.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

The automatic bar feeder of the embodiment comprises a rack 1, and a chain type conveying mechanism 2, a material turning mechanism 3 and a material ejecting clamping mechanism 4 which are sequentially arranged on the rack 1 from front to back along a feeding direction, wherein a limiting plate 11 is fixed at one end of the rack 1 in the length direction, the chain type conveying mechanism 2 is driven by a first motor 21, a material area 51 to be turned and a material area 52 to be ejected with slopes are respectively arranged at the front side and the rear side of the material turning mechanism 3, six vertical fixing plates 5 are fixed at intervals in the length direction of the rack 1, the material area 51 to be turned and the material area 52 to be ejected are respectively arranged at the upper sides of the six fixing plates 5, the chain type conveying mechanism 2 is used for conveying a bar material 10 to the material area 51 to be turned, the material turning mechanism 3 is used for turning and conveying the bar material 10 from the material area 51 to be turned to the material area 52 to be ejected, the material turning mechanism 3 comprises a main shaft 31, a second motor 32 and a plurality of impellers 33, the main shaft 31 is driven by a second motor 32, a plurality of impellers 33 are fixed at intervals along the length direction of the main shaft 31, the ejection clamping mechanism 4 is arranged at one end of the rear side of the rack 1, the ejection clamping mechanism 4 comprises an upper jaw 41, an upright ejection clamping cylinder 42 and a lower jaw 43, a bridge frame 6 is erected on the upper side of the material area to be ejected 52, the upper jaw 41 is fixed at one end of the bridge frame 6 and is positioned on the upper side of the material area to be ejected 52, the lower jaw 43 is driven by the ejection clamping cylinder 42 and is positioned under the upper jaw 41, a hooking mechanism is arranged on the side surface of the lower jaw 43, the hooking mechanism comprises a transversely arranged hooking cylinder 71 and a hooking block 72 driven by the hooking cylinder 71, a movable trolley 61 is arranged on the bridge frame 6, a grabbing mechanism 8 is arranged on the trolley 61, the grabbing mechanism 8 comprises an inverted lifting cylinder 81, a finger cylinder 82 and a hand grip 83 which are sequentially connected up and down, the hand grip 83 is opposite to the upper jaw 41, and a movable material guiding mechanism 9 is arranged on the lower side of the hand grip 83.

In this embodiment, chain formula conveying mechanism 2 includes six sets of conveying unit, six sets of conveying unit are laid along the length direction interval of frame 1, every set of conveying unit includes drive sprocket 22, driven sprocket 23, first chain 24 and second chain 25, the output of first motor 21 is connected with drive sprocket 22 through first chain 24, drive sprocket 22 is connected with driven sprocket 23 through second chain 25, driven sprocket 23 passes through elasticity adjusting bolt 26 and installs the front end at frame 1, install transmission shaft 12 on the frame 1, six sets of conveying unit's drive sprocket 22 is installed respectively on transmission shaft 12.

In this embodiment, a support 62 is fixed on the bridge 6, an adjusting rod 63 with adjustable up-down position and front-back inclination angle is installed on the support 62, a limiting block 64 is fixed at the bottom of the adjusting rod 63, the limiting block 64 is located on the upper side of the material area 52 to be ejected, and the limiting block 64 is used for preventing the bars 10 from being stacked.

In this embodiment, two first sliding rails 44 are symmetrically connected to two sides of the output end of the material ejecting clamping cylinder 42, two groups of first sliding blocks 45 are symmetrically arranged on the outer side wall of the cylinder body of the material ejecting clamping cylinder 42, and each first sliding rail 44 is assembled on one group of first sliding blocks 45 in a vertically slidable manner; two second sliding rails 84 are symmetrically connected to two sides of the output end of the lifting cylinder 81, two groups of second sliding blocks 85 are symmetrically arranged on the outer side wall of the cylinder body of the lifting cylinder 81, and each second sliding rail 84 can be assembled on one group of second sliding blocks 85 in a vertically sliding manner; the bridge 6 is provided with a servo motor 65, a guide rail 66 and a rack 67, the trolley 61 is provided with a third slide block 68 and a gear 69 which are matched with the guide rail 66 and the rack 67, and the gear 69 is connected with the output end of the servo motor 65.

In this embodiment, the material guiding mechanism 9 includes five groups of material guiding units, each group of material guiding units includes a material guiding block 91, an upright material guiding cylinder 92, a rotating shaft 93 and a rotating cylinder 94 arranged transversely, which are sequentially connected from top to bottom, the top surface of the material guiding block 91 is an inclined surface, a shaft sleeve 95 is sleeved outside the rotating shaft 93, a plurality of bearings 96 are installed between the rotating shaft 93 and the shaft sleeve 95, and the output end of the rotating cylinder 94 is connected with the cylinder body of the material guiding cylinder 92 through a Y-shaped pull ring 97; the upper end of the cylinder body of the material guiding cylinder 92 is provided with a fixed block 98, the lower end of the material guiding block 91 is fixed with a guide rod 99, and the guide rod 99 can penetrate through the fixed block 98 in a vertically moving manner.

The working principle of the automatic bar feeder is as follows: after the whole bundle of bars is lifted and placed on the second chain 25 of the chain type conveying mechanism 2, under the driving of the first motor 21, the driving sprocket 22 rotates and drives the second chain 25 to transmit, so that the bars 10 placed on the second chain 25 move to the material area 51 to be turned; the second motor 32 drives the main shaft 31 to rotate, and further drives the plurality of impellers 33 to synchronously rotate, and the bars 10 are sequentially turned and transferred from the material area 51 to be turned to the material area 52 to be ejected through the plurality of impellers 33; the material hooking mechanism hooks the rod material 10 in the material area 52 to be ejected to the top end of the lower jaw 43, the ejection clamping cylinder 42 lifts the lower jaw 43, and the upper jaw 41 and the lower jaw 43 clamp one end of the rod material 10 up and down, at this time, the material guide blocks 91 of the plurality of groups of material guide units are located below the rear side of the material area 52 to be ejected; when the trolley 61 moves to the vicinity of the upper jaw 41, the lifting cylinder 81 and the finger cylinder 82 work to enable the gripper 83 to move downwards to grip the rod 10, then the gripper 83 moves along the rod 10 along with the trolley 61, and each time the trolley 61 passes through a group of material guiding units, the material guiding cylinders 92 of the group of material guiding units firstly push the material guiding blocks 91 to move upwards, the rotating cylinders 94 then push the material guiding cylinders 92 and the material guiding blocks 91 to integrally rotate to the top surfaces of the material guiding blocks 91 to incline to the subsequent machining equipment from top to bottom, when the material guiding blocks 91 of the plurality of groups of material guiding units move upwards and rotate to the proper positions, the gripper 83 releases the rod 10 to enable the local parts of the rod 10 to fall to the plurality of material guiding blocks 91, then the material ejecting clamping cylinder 42 drives the lower jaw 43 to move downwards to enable the rod 10 to fall on the plurality of material guiding blocks 91 and automatically slide down to the preset positions along the top surfaces of the plurality of material guiding blocks 91, and then the material guiding blocks 91 of the plurality of groups of material guiding units simultaneously rotate to return and move downwards, and returning to the original position, and waiting for the next upward movement and rotation.

Claims

1. Bar autoloader, its characterized in that includes the frame and sets gradually chain formula conveying mechanism, stirring mechanism and liftout clamping mechanism in the frame around the pay-off direction, chain formula conveying mechanism by first motor drive, stirring mechanism's front side and rear side be equipped with respectively and take the slope wait to overturn the material district and wait to push up the material district, chain formula conveying mechanism be used for carrying the rod to waiting to overturn the material district, stirring mechanism be used for with the rod from waiting to overturn the material district upset and sending to waiting to push up the material district, stirring mechanism include main shaft, second motor and a plurality of impeller, the main shaft by second motor drive, a plurality of impellers length direction interval along the main shaft fixed, liftout clamping mechanism set up the one end of the rear side of frame, liftout clamping mechanism include keep silent, The vertical material ejecting clamping cylinder and the lower jaw are arranged, a bridge is erected on the upper side of the material area to be ejected, the upper jaw is fixed at one end of the bridge and is positioned on the upper side of the material area to be ejected, the lower jaw is driven by the material ejecting clamping cylinder and is positioned under the upper jaw, a material hooking mechanism is arranged on the side surface of the lower jaw and comprises a horizontally arranged material hooking cylinder and a material hooking block driven by the material hooking cylinder, a movable trolley is arranged on the bridge, a material grabbing mechanism is arranged on the trolley and comprises an inverted lifting cylinder, a finger cylinder and a gripper which are sequentially connected from top to bottom, the gripper is opposite to the upper jaw, a movable material guiding mechanism is arranged on the lower side of the gripper, and when the material ejecting mechanism works, the material bars in the material area to be ejected are hooked to the top end of the lower jaw by the material hooking mechanism, the material ejecting clamping cylinder lifts the lower jaw, one end of the bar is clamped up and down by the upper jaw and the lower jaw, the trolley moves to the position near the upper jaw to grab the bar and moves to the other end of the bar along the bar to release the bar, part of the bar falls to the material guiding mechanism, and finally the material ejecting clamping cylinder drives the lower jaw to move downwards, so that the bar falls on the material guiding mechanism completely, and the bar is guided to subsequent machining equipment by the material guiding mechanism.

2. The automatic rod feeding machine according to claim 1, wherein the chain type conveying mechanism comprises a plurality of groups of conveying units, the plurality of groups of conveying units are arranged at intervals along the length direction of the frame, each group of conveying units comprises a driving sprocket, a driven sprocket, a first chain and a second chain, the output end of the first motor is connected with the driving sprocket through the first chain, the driving sprocket is connected with the driven sprocket through the second chain, the driven sprocket is mounted at the front end of the frame through a tightness adjusting bolt, a transmission shaft is mounted on the frame, and the driving sprockets of the plurality of groups of conveying units are mounted on the transmission shaft respectively.

3. The automatic bar feeding machine according to claim 1, wherein a support is fixed on the bridge frame, an adjusting rod with adjustable vertical position and front and rear inclination angles is installed on the support, a material limiting block is fixed at the bottom of the adjusting rod, the material limiting block is located on the upper side of the material area to be ejected, and the material limiting block is used for preventing the bars from being stacked.

4. The automatic bar feeding machine according to claim 1, wherein two first sliding rails are symmetrically connected to two sides of the output end of the ejecting clamping cylinder, two sets of first sliding blocks are symmetrically arranged on the outer side wall of the cylinder body of the ejecting clamping cylinder, and each first sliding rail is assembled on one set of first sliding blocks in a vertically slidable manner.

5. The automatic rod feeding machine according to claim 1, wherein two second sliding rails are symmetrically connected to two sides of the output end of the lifting cylinder, two sets of second sliding blocks are symmetrically arranged on the outer side wall of the cylinder body of the lifting cylinder, and each second sliding rail is assembled on one set of second sliding blocks in a vertically slidable manner.

6. The automatic bar feeder according to claim 1, wherein the bridge frame is provided with a servo motor, a guide rail and a rack, the trolley is provided with a third slide block and a gear, the third slide block and the gear are matched with the guide rail and the rack, and the gear is connected with an output end of the servo motor.

7. The automatic rod feeding machine according to claim 1, wherein the material guiding mechanism comprises a plurality of groups of material guiding units, each group of material guiding units comprises a material guiding block, an upright material guiding cylinder, a rotating shaft and a rotating cylinder, the material guiding block, the upright material guiding cylinder, the rotating shaft and the rotating cylinder are sequentially connected from top to bottom, the top surface of the material guiding block is an inclined surface, a shaft sleeve is sleeved on the outer side of the rotating shaft, a plurality of bearings are installed between the rotating shaft and the shaft sleeve, and the output end of the rotating cylinder is connected with the cylinder body of the material guiding cylinder through a Y-shaped pull ring.

8. The automatic rod feeding machine according to claim 7, wherein a fixed block is installed at an upper end of a cylinder body of the material guiding cylinder, a guide rod is fixed at a lower end of the material guiding block, and the guide rod is vertically movably inserted into the fixed block.

9. The automatic rod feeding machine according to claim 1, wherein a plurality of upright fixing plates are fixed to the frame at intervals in the length direction, and the material area to be turned and the material area to be ejected are respectively arranged on the upper sides of the fixing plates.

10. The automatic rod feeding machine according to claim 1, wherein a stopper plate is fixed to one end of the frame in the longitudinal direction.