CN209775461U

CN209775461U - Rotary precision control device for rotary disc

Info

Publication number: CN209775461U
Application number: CN201920250421.8U
Authority: CN
Inventors: 吴清荣; 丁豪伟; 蒋鼎; 俞诤; 何一帆
Original assignee: Haitian Plastics Machinery Group
Current assignee: Haitian Plastics Machinery Group
Priority date: 2019-02-27
Filing date: 2019-02-27
Publication date: 2019-12-13
Anticipated expiration: 2029-02-27

Abstract

The utility model discloses a carousel rotation accuracy control device, including template, carousel and servo motor: the template comprises a microswitch, a driving gear and a driven gear, the microswitch is arranged at the joint where the turntable is attached to the template, the driving gear is respectively connected with the servo motor and the driven gear, the driven gear is connected with a turntable shaft, and the turntable is connected to the template through the turntable shaft; and a microswitch contact block is arranged on the outer edge of the turntable and corresponds to the microswitch. The utility model discloses a servo motor and micro-gap switch realize the rotation control to the carousel, can respond to the condition in place of carousel in real time to the action on next step of accurate control carousel, than electric eye control, the product cycle shortens when its precision is higher, and is with low costs simultaneously, and the security is high.

Description

Rotary precision control device for rotary disc

Technical Field

The utility model relates to an injection molding machine technical field especially relates to a carousel rotation accuracy control device.

Background

The turntable is one of the important structures of the turntable vertical injection molding machine, and the precision control of the turntable is widely regarded by users. The current vertical notes of carousel blow quick-witted carousel is rotatory mostly to use electric eye control, in addition increase the bolt, the bolt uses cylinder control usually, when the carousel from 0 degree to 180 degrees, 180 degrees electric eye is bright then the cylinder begins the action, bolt insertion signal carries out next step action after in place, the carousel is similar from 180 degrees to 0 degree, electric eye control range is big, if carousel servo control is not good, then it may not be 180 degrees to reflect on the carousel, may be 179.5 or exceed 180 degrees, lead to the cylinder bolt probably to have the risk that can't insert, can't continue to produce the machine and stop, if exceed 180 degrees in addition, then easily make the piece of hitting bump into the locating pin, lead to mechanical collision. When the rotary plate rotates and the plug pin is pulled out, the cycle of the product is influenced to a certain extent after the plug pin is added, the cycle of inserting and pulling the plug pin is increased by about 2-3 seconds at least, and the working efficiency is easily influenced.

The patent with publication number CN205572883U discloses a servo precision planetary reduction control turntable device, which comprises a planetary reducer, a rotating shaft, a turntable and a template, wherein the template is sleeved on the rotating shaft, the rotating shaft is fixed in the turntable, a turntable gear is arranged on the side of the turntable, a servo motor is arranged at the top end of the template, the planetary reducer is arranged on one side of the servo motor, and a pinion is arranged at the shaft end of the planetary reducer. This kind of servo accurate planet speed reduction control carousel device, through the combination of the planetary reducer who sets up and servo motor, can drive the axle head pinion, make the carousel rotate, through computer system control turned angle, the rotation accuracy control that can make the carousel is within 0.1, the problem of overshoot that former with hydraulic motor rotation produced makes the corner inaccuracy is solved, solved immediately, the location inaccuracy of machine multistation carousel injection molding machine crouches, the multistation mould can not exchange each other, the service life of injection molding machine is prolonged, work efficiency and product quality have been improved. However, the solution is complicated in structure and relatively high in cost.

Disclosure of Invention

the utility model aims at prior art's defect, provide a carousel rotation accuracy control device, can accurate location, and product cycle is shorter.

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

The utility model provides a carousel rotation accuracy controlling means, includes template, carousel and servo motor:

The template comprises a microswitch, a driving gear and a driven gear, the microswitch is arranged at the joint where the turntable is attached to the template, the driving gear is respectively connected with the servo motor and the driven gear, the driven gear is connected with a turntable shaft, and the turntable is connected to the template through the turntable shaft;

and a microswitch contact block is arranged on the outer edge of the turntable and corresponds to the microswitch.

Preferably, a speed reducer is arranged between the servo motor and the driving gear, and the servo motor is connected with the driving gear through the speed reducer.

Preferably, the number of the micro switches is at least two.

Preferably, a microswitch bracket is arranged on the template, and the microswitch is arranged on the microswitch bracket.

preferably, the template is provided with a positioning pin, and the turntable is provided with at least two limiting blocks corresponding to the positioning pin.

preferably, an arc groove is arranged in the turntable and corresponds to the position of the positioning pin after rotating along the turntable by a preset radian.

Preferably, still be provided with a plurality of carousel briquetting on the template, the carousel outer edge set up in a plurality of carousel briquetting below.

Compared with the prior art, the utility model discloses a servo motor and micro-gap switch realize the rotation control to the carousel, can respond to the condition in place of carousel in real time to action on next step of accurate control carousel, than electric eye control, the higher while product cycle of its precision shortens, and is with low costs simultaneously, and the security is high.

Drawings

Fig. 1 is a structural view of a rotary precision control device of a turntable according to a first embodiment;

Fig. 2 is a view of a hidden structure of a turntable rotation precision control apparatus according to a first embodiment;

FIG. 3 is a front view of a turntable rotation accuracy control apparatus according to an embodiment;

fig. 4 is a reverse side view of a turntable rotation accuracy control device according to a first embodiment.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

Example one

the present embodiment provides a device for controlling the rotational precision of a turntable, as shown in fig. 1-4, comprising a template 100, a turntable 200, and a servo motor (not shown):

The template 100 comprises a microswitch 110, a driving gear 120 and a driven gear 130, the microswitch 110 is arranged at the joint where the turntable 200 is attached to the template 100, the driving gear 120 is respectively connected with the servo motor and the driven gear 130, the driven gear 130 is connected with a turntable shaft 140, and the turntable 200 is connected to the template 100 through the turntable shaft 140;

a micro switch contact block 210 is disposed on the outer edge of the rotary plate 200, and corresponds to the micro switch 110.

The injection molding machine turntable of the embodiment replaces cigarette lighting control and adopts a driver and a servo motor for control, the servo motor is connected with a driving gear, the driving gear is connected with a driven gear, the driven gear drives a turntable shaft, the turntable is arranged on the turntable shaft, different from the prior art, the injection molding machine turntable of the embodiment is additionally provided with a microswitch on the mechanism, the microswitch is a contact mechanism with a micro contact interval and a quick action mechanism, the contact mechanism performs switching action by using specified stroke and specified force, the contact mechanism is covered by a shell, the outside of the microswitch is provided with a driving rod, the in-place condition of the turntable is sensed by the microswitch, the rotating precision of the turntable can be effectively ensured, the cost is lower, the microswitch of the embodiment presses a microswitch contact block of the microswitch arranged on the turntable for triggering, when the microswitch triggers, the turntable rotates in place, the feedback to a host computer can, in a preferred scheme of the embodiment, before the micro switch is triggered, the controller controls the rotation of the rotating disc so as to realize accurate rotation of the rotating disc.

Preferably, a speed reducer (not shown) is disposed between the servo motor and the driving gear 120, and the servo motor is connected to the driving gear through the speed reducer.

The turntable rotates forwards from 0 to 180 degrees, the servo motor is accelerated and then decelerated through the speed reducer, when the turntable is about to reach 180 degrees, torque limit control is performed, the main controller can perform setting, if the turntable can be debugged to be set at 179 degrees, the torque limit is set to 10 percent, then the turntable slowly rotates to 180 degrees, and when the controller monitors that the microswitch is in place, the next action can be performed; the carousel is the reversal from 180 degrees to 0 degree, and servo motor passes through the speed reducer and accelerates earlier the back and decelerate, carries out the limit and turns round control before the carousel will arrive 0 degree promptly, and main control unit can set up, if can debug the setting at 1 degree, the limit turns round to 10%, then slowly turns to 0 degree, monitors the micro-gap switch signal that targets in place when the controller, can carry out action on next step. The torque limiting control of the embodiment before the rotary plate is in place can effectively prevent the rotary plate from crashing the micro switch under the visual control state and prevent the condition that the micro switch is easy to damage due to the fact that the micro switch is crashed by the overlarge inertia of the rotary plate.

Preferably, the number of the micro switches 110 is at least two.

The corresponding at least two micro switches are arranged to monitor in-place signals of 0 degree and 180 degrees of the rotation disc respectively.

Preferably, a micro switch bracket 150 is disposed on the template 100, and the micro switch 110 is disposed on the micro switch bracket 150.

Preferably, the mold plate 100 is provided with a positioning pin 160, and the turntable 300 is provided with at least two limiting blocks 220 corresponding to the positioning pin.

The 0 degree and 180 degrees positions of this embodiment on the carousel are provided with the stopper respectively for machinery is spacing, realizes through the locating pin that sets up on the template. Mechanical limiting can be used to prevent the rotating disk from rotating out of control when servo control is in an out-of-control state.

Preferably, an arc groove is formed in the turntable 200, and the arc groove corresponds to the position of the positioning pin 160 after rotating along the turntable by a preset radian.

A180-degree arc groove is formed in the rotary disc and used for rotating the fixed pin rotating path, so that the rotary disc is not mechanically collided.

Preferably, the die plate 100 is further provided with a plurality of rotating disc pressing blocks 170, and the outer edge 170 of the rotating disc is arranged below the plurality of rotating disc pressing blocks 170.

Be provided with three briquetting on the template, this three briquetting evenly sets up in the outer top of following of carousel, has certain clearance between briquetting and the carousel, and the carousel falls down when the briquetting can prevent carousel and carousel hub connection screw fracture.

This embodiment realizes the rotation control to the carousel through servo motor and micro-gap switch, can respond to the condition of targetting in place of carousel in real time to the next action of accurate control carousel, than electric eye control, the product cycle shortens when its precision is higher, and is with low costs simultaneously, and the security is high.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. the utility model provides a carousel rotation accuracy controlling means which characterized in that, includes template, carousel and servo motor:

2. The apparatus as claimed in claim 1, wherein a speed reducer is provided between the servo motor and the driving gear, and the servo motor is connected to the driving gear through the speed reducer.

3. A control device of rotational accuracy of a turntable as set forth in claim 1, wherein said micro switches are at least two in number.

4. The apparatus as claimed in claim 1, wherein the template is provided with a micro switch bracket, and the micro switch is disposed on the micro switch bracket.

5. The apparatus according to claim 1, wherein the mold plate is provided with a positioning pin, and the turntable is provided with at least two stoppers corresponding to the positioning pin.

6. The apparatus as claimed in claim 5, wherein a circular groove is formed in the turntable, the circular groove corresponding to a position of the positioning pin after rotating along the turntable by a predetermined arc.

7. the apparatus as claimed in claim 1, wherein the mold plate further comprises a plurality of turntable press blocks, and the outer edge of the turntable is disposed below the plurality of turntable press blocks.