CN209905867U

CN209905867U - Lifting mechanism of rotary stock bin

Info

Publication number: CN209905867U
Application number: CN201920675220.2U
Authority: CN
Inventors: 牟必波; 李坤; 赵亮; 彭加国
Original assignee: Jiemi (chongqing) Robot Co Ltd
Current assignee: Jiemi (chongqing) Robot Co Ltd
Priority date: 2019-05-13
Filing date: 2019-05-13
Publication date: 2020-01-07
Anticipated expiration: 2029-05-13

Abstract

The utility model discloses a lifting mechanism of a rotary bin, belonging to the field of mechanical transmission devices, comprising a lifting plate, a rotating rod and an ejector rod; a threaded hole is formed in the middle of the lifting plate 1, the rotating rod is matched with the threaded hole and rotates around the axis of the rotating rod under the driving of a motor, the lower end of the ejector rod is located on the lifting plate, the upper end of the ejector rod penetrates through a bottom plate of the storage bin, and an ejector plate is arranged at the end part of the upper end of the ejector rod; the dwang both sides are equipped with the guide bar, still be equipped with on the lifter plate in the both sides of dwang with guide bar complex through-hole. The utility model has the advantages of high transmission precision and stable transmission.

Description

Lifting mechanism of rotary stock bin

Technical Field

The utility model relates to a mechanical transmission, concretely relates to elevating system.

Background

For most disc-shaped workpieces, on an automatic production line, a rotary bin is mostly adopted for feeding, and the rotary bin is adopted. Rotatory feed bin is equipped with the rotary disk that bears the weight of the material, and the material is deposited on a circumference of rotary disk, evenly is equipped with a plurality of stop device of placing the work piece on this circumference, makes the material stack, and the liftout device of rethread rotary disk below jacks up the material one by one to take from the stop device top. At present, the elevating system of liftout is the cylinder, but the precision of cylinder is relatively poor, and stability is not enough and along with the reduction of material, and the gas compression condition in the cylinder also changes, further influences its progress, and when the centre gripping material, the product precision of needs is higher relatively, the unstable condition of centre gripping often appears.

SUMMERY OF THE UTILITY MODEL

Not enough to exist among the prior art, the utility model aims to provide a lifting mechanism of rotatory feed bin has solved the poor problem of cylinder lifting accuracy among the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a lifting mechanism of a rotary bin comprises a lifting plate, a rotating rod and an ejector rod; the middle of the lifting plate is provided with a threaded hole, the rotating rod is matched with the threaded hole and rotates around the axis of the rotating rod under the driving of a motor, the lower end of the ejector rod is positioned on the lifting plate, the upper end of the ejector rod penetrates through the bottom plate of the storage bin, and the end part of the upper end of the ejector rod is provided with an ejector plate; the dwang both sides are equipped with the guide bar, still be equipped with on the lifter plate in the both sides of dwang with guide bar complex through-hole.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses utilize dwang and guide bar control rolling disc to rise or descend, and then control the liftout pole and rise or descend, reach the purpose of liftout and playback, and screw thread transmission is compared and is moved in the cylinder top and possess better precision and stability. Two guide rods are arranged to ensure that the lifting plate is kept stable in the lifting and descending processes.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

FIG. 1 is a three-dimensional view of the present invention;

FIG. 2 is a sectional view of the inner and outer threaded sleeves;

fig. 3 is a plan view of the elevating mechanism.

Wherein, lifter plate 1, dwang 2, ejector beam 3, liftout plate 4, guide bar 5, driven pulley 6, interior outer swivel nut 7.

Detailed Description

In order to make the utility model realize that the technical means, the creation characteristics, the achievement purpose and the effect are clearer and are easy to understand, the following combination and the detailed implementation are right the utility model discloses do further explanation:

as shown in fig. 1, the utility model discloses a lifting mechanism of a rotary bin, which comprises a lifting plate 1, a rotating rod 2 and an ejector rod 3; a threaded hole is formed in the middle of the lifting plate, threads matched with the threaded hole are arranged on the rotating rod 2 and rotate around the axis of the rotating rod under the driving of a motor, the lower end of the ejector rod 3 is located on the lifting plate 1, the upper end of the ejector rod penetrates through a bottom plate of the storage bin, and an ejector plate 4 is arranged at the end part of the upper end of the ejector rod; 2 both sides of dwang are equipped with guide bar 5, still be equipped with on lifter plate 1 in the both sides of dwang 2 with guide bar 5 complex through-hole.

Further, there are two ejector pins 3, which are respectively disposed on two sides of the rotating rod 2. The two sides of the workpiece are ejected, and the ejection device can be suitable for workpieces with limiting columns such as gears and the like arranged in the middle.

Further, 2 lower extremes of dwang are equipped with driven pulley 6, and driven pulley 6 passes through the drive belt by the motor and drives, the vertical setting of motor sets up down in 1 one side of lifter plate and motor shaft. The parallel arrangement can save the space occupied by the power structure and reduce the overall height of the storage bin.

According to the above scheme the utility model discloses a technical thought does: utilize dwang 2 and guide bar 5 control rolling disc to rise or descend, and then control liftout pole 3 to rise or descend, reach the purpose of liftout and playback. Two guide rods 5 are provided to ensure that the lifter plate 1 remains stable during ascent and descent. The two ejector rods 3 are arranged not to eject materials from the middle of a workpiece, and are not only suitable for common disc parts, but also suitable for ejecting materials with holes in the middle, such as gear rings. The transmission structure is adopted to drive the rotating rod 2 and is not directly arranged at the end part of the rotating rod 2, so that the overall height of the lifting mechanism is reduced, and the overall height of the storage bin is further reduced; at the same height, the magazine can accommodate more workpieces.

As shown in figure 2, because the components above the ejector plate 4 are stacked, the positioning between the limiting device and the product is not very accurate, the material blocking condition can be generated in the material ejecting process sometimes, and at the moment, if the material ejecting is forced, the damage of equipment, a motor or the limiting device can be caused. Therefore, an inner threaded sleeve and an outer threaded sleeve 7 are arranged between the rotating rod 2 and the lifting plate 1; the inner and outer threaded sleeves 7 are cylindrical, and the inner walls of the inner and outer threaded sleeves are rigid threads and matched with the rotating rod 2; the outer wall of the lifting plate is provided with flexible threads matched with the lifting plate 1, and the difference between the major diameter and the minor diameter of the flexible threads is small. The inner wall is made of common metal materials, the outer wall is made of hard rubber or plastics and the like with certain elastic contractibility, and the inner and outer thread sleeves 7 do not move relative to the lifting plate 1 under normal conditions. When the clamping lifting plate 1 cannot rise and the rotating rod 2 rotates forcibly, the outer wall can contract or be damaged and break away from the lifting plate 1 after a certain force is reached, so that the safety of the equipment is ensured; if the outer wall is damaged, the inner and outer thread sleeves 7 are replaced, and if the outer wall is not damaged, the lifting plate is screwed into the lifting plate 1 for continuous use; the safety risk and the maintenance cost are reduced.

Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art will understand that the present invention can be modified or replaced with other embodiments without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. A lifting mechanism of a rotary bin is characterized by comprising a lifting plate, a rotating rod and an ejector rod; the middle of the lifting plate is provided with a threaded hole, the rotating rod is provided with threads matched with the threaded hole and rotates around the axis of the rotating rod under the driving of a motor, the lower end of the ejector rod is positioned on the lifting plate, the upper end of the ejector rod penetrates through the bottom plate of the storage bin, and the end part of the upper end of the ejector rod is provided with an ejector plate; the dwang both sides are equipped with the guide bar, still be equipped with on the lifter plate in the both sides of dwang with guide bar complex through-hole.

2. The lifting mechanism of a rotary silo according to claim 1, wherein two ejector pins are respectively disposed at both sides of the rotary rod.

3. The lifting mechanism of a rotary silo according to claim 2, wherein the lower end of the rotating rod is provided with a driven pulley, the driven pulley is driven by a motor through a transmission belt, the motor is vertically arranged on one side of the lifting plate, and a motor shaft is arranged downwards.

4. The lifting mechanism of the rotary silo according to any one of claims 1 to 3, wherein an inner threaded sleeve and an outer threaded sleeve are arranged between the rotating rod and the lifting plate; the inner and outer threaded sleeves are cylindrical, and the inner wall of the inner and outer threaded sleeves is a rigid thread matched with the rotating rod; the outer wall of the lifting plate is matched with the lifting plate through flexible threads.