CN113443363A

CN113443363A - Automatic screw feeding machine

Info

Publication number: CN113443363A
Application number: CN202010217815.0A
Authority: CN
Inventors: 孙余华
Original assignee: Maintek Computer Suzhou Co Ltd; Pegatron Corp
Current assignee: Maintek Computer Suzhou Co Ltd; Pegatron Corp
Priority date: 2020-03-25
Filing date: 2020-03-25
Publication date: 2021-09-28

Abstract

The invention provides an automatic screw feeding machine which comprises a vibration turntable, an induction module, a damping vibration module and a control module. The sensing module is coupled to the vibration turntable and used for sensing vibration information of the vibration turntable. The damping vibration module is provided with a vibrator and a damper. The damper is coupled to the vibrator. The control module is electrically coupled to the sensing module and the vibrator. The control module drives the damper to contact the vibration turntable according to the vibration information of the vibration turntable and controls the vibrator to generate reverse vibration.

Description

Automatic screw feeding machine

Technical Field

The invention relates to an automatic screw feeder, in particular to an automatic screw feeder which can prevent small screws from being vibrated and flying during conveying and can improve the production efficiency.

Background

When small screws with light weight need to be conveyed, the small screws are often vibrated and flown away by the automatic screw conveying machine due to the fact that the small screws are too light and insufficient in vibration resistance. In order to prevent the small screws from flying during the conveying process, the conveying speed of the automatic screw conveying machine needs to be reduced, but the production efficiency is affected. Therefore, it is a major problem in the art to improve the production efficiency while avoiding the small screws from being shaken off during the transportation.

Disclosure of Invention

The invention aims at an automatic screw feeding machine, which can prevent small screws from being vibrated and flying during conveying and can improve the production efficiency.

According to an embodiment of the invention, the automatic screw feeding machine comprises a vibration turntable, an induction module, a damping vibration module and a control module. The sensing module is coupled to the vibration turntable and used for sensing vibration information of the vibration turntable. The damping vibration module is provided with a vibrator and a damper. The damper is coupled to the vibrator. The control module is electrically coupled to the sensing module and the vibrator. The control module drives the damper to contact the vibration turntable according to the vibration information of the vibration turntable and controls the vibrator to generate reverse vibration relative to the vibration information.

In the automatic screw feeder according to the embodiment of the invention, the sensing module includes a vibration sensor.

In the automatic screw feeder according to the embodiment of the invention, the sensing module comprises an accelerometer.

In the automatic screw feeder according to the embodiment of the present invention, the vibration information includes a vibration amplitude.

In the automatic screw feeder according to the embodiment of the present invention, the vibration information includes a vibration frequency.

In the automatic screw feeder according to the embodiment of the present invention, the vibration information includes a vibration curve.

In the automatic screw feeder according to the embodiment of the invention, the material of the damper includes a soft material.

In the automatic screw feeder according to the embodiment of the present invention, the material of the damper includes an elastic material.

In the automatic screw feeder according to the embodiment of the present invention, the material of the damper includes rubber.

In the automatic screw feeder according to the embodiment of the invention, the control module stores a preset value, and when the control module judges that the vibration information of the vibration turntable is greater than or equal to the preset value, the control module drives the damper to contact the vibration turntable and controls the vibrator to generate reverse vibration relative to the vibration information.

In the invention, the harmful vibration generated by the vibrating turntable can be counteracted or eliminated to the maximum extent by controlling the vibrator to generate reverse vibration. Therefore, the screws are not vibrated and flown away by the vibration generated by the vibration turntable, and the conveying speed of the screws is not required to be reduced, so that the technical effects of avoiding the screws from being vibrated and flown away during conveying and improving the production efficiency are achieved.

Drawings

FIG. 1 is a schematic top view of an automatic screw feeder;

FIG. 2 is a perspective view of the automatic screw feeder;

FIG. 3 is a waveform diagram of a vibration source stored in a control module of the automatic screw feeder.

Description of the reference numerals

100: an automatic screw feeding machine;

110: vibrating the turntable;

111: a center;

112: a notch;

120: a sensing module;

130: a damping vibration module;

131: a vibrator;

132: a damper;

140: a control module;

150: a base;

151: an inlet;

152: an outlet;

160: a screw;

d: a direction of movement;

r: the direction of rotation.

Detailed Description

Reference will now be made in detail to exemplary embodiments of the invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings and the description to refer to the same or like parts.

FIG. 1 is a schematic top view of an automatic screw feeder. Fig. 2 is a perspective view of the automatic screw feeder. Referring to fig. 1 and 2, the automatic screw feeder 100 includes a vibration turntable 110, a sensing module 120, a damping vibration module 130, a control module 140, and a base 150. The vibrating turntable 110 is pivotally connected to the base 150. The damping vibration module 130 has a vibrator 131 and a damper 132, and the damper 132 is coupled to the vibrator 131. The sensing module 120 is coupled to the vibrating turntable 110 and is used for sensing vibration information of the vibrating turntable 110. The sensing module 120 includes, but is not limited to, a damper 132. The control module 140 is electrically coupled to the sensing module 120 and the vibrator 131. The control module 140 drives the damper 132 to contact the vibration turntable 110 according to the vibration information of the vibration turntable 110 and controls the vibrator 131 to generate a reverse vibration with respect to the vibration information. Therefore, the automatic screw feeder 100 of the present invention can reduce the vibration of the vibrating turntable 110, and can increase the conveying speed of the screw 160, so as to prevent the screw 160 from being influenced by the vibrating turntable 110 and being vibrated away during conveying, and simultaneously can increase the production efficiency.

For example, the sensing module 120 includes, but is not limited to, a vibration sensor or an accelerometer. The vibration information of the vibration turntable 110 sensed by the sensing module 120 includes a vibration amplitude, a vibration frequency and/or a vibration curve. Here, the vibration curve refers to curve data plotted based on vibration information recorded for a long time.

On the other hand, the material of the damper 132 includes a material that absorbs vibration, such as soft or elastic material. For example, the material of the damper 132 includes rubber. The damper 132 is preferably, but not limited to, aligned with the center 111 of the vibrating rotor 110 and capable of moving along the moving direction D and abutting against the center 111 of the vibrating rotor 110. In addition, the damping vibration module 130 is preferably, but not limited to, slidably disposed above the vibration turntable 110 in a direction perpendicular to the vibration turntable 110, and for example, but not limited to, slidably disposed on a fixed frame (not shown), so that the damper 132 can more evenly apply the opposite vibration to the vibration turntable 110.

In the present embodiment, the vibration plate 110 is provided with a plurality of notches 112 for receiving and conveying screws 160. The base 150 includes an inlet 151 and an outlet 152. The screw 160 can be delivered from the inlet 151 of the base 150 to the notch 112 of the vibratory turntable 110. As the vibratory turntable 110 rotates in the rotation direction R, the screw 160 may be delivered to the outlet 152 of the base 150.

When the vibration turntable 110 starts to rotate, the vibration turntable 110 is easily vibrated. At this time, the sensing module 120 collects vibration information (including information of vibration amplitude, vibration frequency and/or vibration curve) of the vibration turntable 110, and then converts the collected vibration information into an electrical signal, and transmits the electrical signal to the control module 140.

FIG. 3 is a waveform diagram of a vibration source stored in a control module of the automatic screw feeder. Specifically, the user may pre-define several common regular waveform patterns, such as the fixed vibration source, the acceleration/deceleration vibration source, and other vibration sources shown in fig. 3, and store the waveform patterns in the control module 140. After the sensing module 120 acquires the vibration information of the vibration turntable 110, the control module 140 separates the vibration information into one or a plurality of superposed combinations of vibration waveforms which are stored in advance, a specific preset value can be stored in the control module 140, the control module 140 calculates through programming (filtering out useless information), and when the control module 140 judges that the numerical value contained in the vibration information is greater than or equal to the preset value, the control module 140 drives the damping vibration module 130 to move along the moving direction D and contact with the vibration turntable 110, and controls the vibrator 131 to generate reverse vibration.

In the present embodiment, the predetermined value can be preset to be an amplitude of 0. Therefore, when all the amplitudes in the collected vibration information exceed 0, corresponding opposite vibration should be generated to cancel. Specifically, one or more common waveforms shown in fig. 3 may be superimposed and combined to generate a corresponding inverse vibration waveform diagram, and the control module 140 controls the vibrator 131 to vibrate according to the inverse vibration waveform diagram. However, the present invention is not limited thereto, and in other embodiments, the predetermined value may be other values. Further, the reverse vibration generated by the vibrator 131 is transmitted to the vibration turntable 110 through the damper 132.

Then, when the vibratory turntable 110 conveys the screw 160 located at the notch 112 in the rotating direction R, the harmful vibration (i.e., vibration greater than the preset value) generated by the vibratory turntable 110 is already offset or eliminated to the maximum extent by the reverse vibration generated by the damper 132. Therefore, in the process of conveying the screw 160 from the inlet 151 of the base 150 to the outlet 152 of the base 150, the screw 160 is not vibrated away by the vibration generated by the vibration turntable 110, the conveying speed of the screw 160 does not need to be reduced, and the conveying speed of the screw 160 can be increased, which is helpful to achieve the technical effects of preventing the screw 160 from being vibrated away during conveying and improving the production efficiency.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic screw feeder, characterized by comprising:

vibrating the turntable;

the sensing module is coupled to the vibration turntable and used for sensing vibration information of the vibration turntable;

a damped vibration module having a vibrator and a damper coupled to the vibrator; and

the control module is electrically coupled to the sensing module and the vibrator, drives the damper to contact the vibration turntable according to the vibration information of the vibration turntable, and controls the vibrator to generate reverse vibration relative to the vibration information.

2. The automatic screw feeder of claim 1, wherein the sensing module comprises a vibration sensor.

3. The automatic screw feeder of claim 1, wherein the sensing module comprises an accelerometer.

4. The automatic screw feeder according to claim 1, wherein the vibration information includes vibration amplitude.

5. The automatic screw feeder according to claim 1, wherein the vibration information includes a vibration frequency.

6. The automatic screw feeder according to claim 1, wherein the vibration information includes a vibration curve.

7. The automatic screw feeder according to claim 1, wherein the material of the damper comprises a soft material.

8. The automatic screw feeder of claim 1, wherein the material of the damper comprises an elastomeric material.

9. The automatic screw feeder according to claim 1, wherein the material of the damper comprises rubber.

10. The automatic screw feeder according to claim 1, wherein the control module stores a preset value, and when the control module determines that the vibration information of the vibration turntable is greater than or equal to the preset value, the control module drives the damper to contact the vibration turntable and controls the vibrator to generate a reverse vibration relative to the vibration information.