CN113382624A

CN113382624A - Thermistor feeder

Info

Publication number: CN113382624A
Application number: CN202110665072.8A
Authority: CN
Inventors: 张玮; 马伟成; 盘峰; 胡明欢
Original assignee: Zhuhai Lingzhi Automation Technology Co ltd
Current assignee: Zhuhai Lingzhi Automation Technology Co ltd
Priority date: 2021-06-16
Filing date: 2021-06-16
Publication date: 2021-09-10
Anticipated expiration: 2041-06-16
Also published as: CN113382624B

Abstract

The invention provides a thermistor feeder which comprises a support, a driving mechanism, a first rotating disc, a guiding mechanism and a second rotating disc. The first rotary disc is installed on the bracket and driven by the driving mechanism to rotate, and a first adsorption part for adsorbing the resistor is arranged on the circumferential surface of the first rotary disc. The guide mechanism is positioned on one side of the first rotating disc and comprises a magnet and two guide plates, and the two guide plates are arranged in parallel to form a guide channel of the resistor; at least a portion of the first carousel is located within the guide channel. The second turntable is positioned on one side of the first turntable, the diameter of the second turntable is smaller than that of the first turntable, and a second adsorption part for adsorbing the resistor is arranged on the circumferential surface of the second turntable. The two magnets are arranged side by side at a predetermined angle so that the resistor moves toward the first rotary plate along the guide passage under the action of magnetic force. The first rotating disc and the second rotating disc rotate synchronously, the circumferences of the first rotating disc and the second rotating disc are internally tangent, and the first adsorption part and the second adsorption part meet at the tangent point position.

Description

Thermistor feeder

Technical Field

The present invention relates to a feeder, and more particularly, to an automatic magnetic feeder for electronic components such as resistors.

Background

The resistor is one of electronic components and is widely applied to electrical products. In the manufacturing process of these electrical products, it is necessary to solder the resistor to the circuit board or other components. However, because the volume of the resistor is small, the resistor is always welded manually, and the welding efficiency is low; and in the case of the continuous rise of labor cost, manual welding can cause high production and manufacturing cost.

In the existing production line, the resistors are required to be welded by automatic equipment, but before the resistors are welded by the automatic equipment, the automatic feeding of the resistor devices is firstly solved. And according to different shapes and characteristics of components, an automatic feeding device with a specific structure or function needs to be designed.

Disclosure of Invention

The invention aims to provide a thermistor feeder which can realize automatic feeding of a resistor device with a specific shape and can keep the resistor device with the specific shape in a required posture in the automatic feeding process.

In order to achieve the above object, the thermistor feeder of the present invention includes a holder, a driving mechanism, a first turntable, a guide mechanism, and a second turntable. The first rotary disc is installed on the bracket and driven by the driving mechanism to rotate, and a first adsorption part for adsorbing the thermistor is arranged on the circumferential surface of the first rotary disc. The guide mechanism is positioned on one side of the turntable and comprises two magnets and two guide plates, and the two guide plates are arranged in parallel side by side to form a guide channel of the resistor; at least a portion of the first carousel is located within the guide channel. The second turntable is positioned on one side of the first turntable, the diameter of the second turntable is smaller than that of the first turntable, and a second adsorption part for adsorbing the thermistor is arranged on the circumferential surface of the second turntable. The two magnets are arranged side by side at a predetermined angle, and the predetermined angle is set so that the thermistor moves along the guide passage toward the circumferential surface of the first turntable under the action of magnetic force, thereby being attracted by the first attraction section. The first rotating disc and the second rotating disc rotate synchronously, the circumferences of the first rotating disc and the second rotating disc are internally tangent, and the first adsorption part and the second adsorption part meet at the tangent point position.

In the invention, the horn-shaped magnet is arranged in the guide mechanism, so that the resistor in the guide mechanism is constantly moved to the first steering wheel direction under the action of magnetic force. The resistor moved to the circumferential surface of the first rotary disc is adsorbed by the first adsorption part arranged on the circumferential surface of the rotary disc, so that the automatic feeding of the resistor is realized through the guide mechanism and the first rotary disc. Secondly, the second turntable is arranged in a specific mode, and the lead posture of the resistor adsorbed on the first turntable is corrected to ensure that the resistor can keep the required posture and enter the next process.

In a preferred embodiment, the first rotating disc and the second rotating disc realize power transmission through a gear or belt transmission mode. The mode that drives the second carousel pivoted through first carousel is convenient for control the rotation ratio between them, and then control the position of meeting of first absorption portion and second absorption portion.

Drawings

Figure 1 is a perspective view of a thermistor applicator of the present invention.

Figure 2 is a top view of the thermistor applicator shown in figure 1.

Fig. 3 is a diagram showing a shape of a resistor to which the thermistor feeder of the present invention is applied.

Fig. 4 is a partially enlarged view of the thermistor feeder shown in fig. 1.

Figure 5 is a further enlarged view of a portion of the thermistor applicator shown in figure 1.

Detailed Description

The structure and other aspects of the thermistor applicator of the present invention will be described in further detail hereinafter with reference to the accompanying drawings by way of specific embodiments.

As shown in fig. 1-2, the thermistor feeder of the present invention comprises a holder 10, a driving mechanism 11, a first turntable 12, a guide mechanism 13, and a second turntable 15. Wherein the first rotating disc 12 is mounted on the support 10 and can be driven to rotate by a driving mechanism 11, and the driving mechanism 11 can be a motor, for example. The circumferential surface of the first turntable 12 is provided with an adsorption portion 121 for adsorbing the resistor 14.

The guide mechanism 13 is located on one side of the first turntable 12. The guide mechanism 13 includes two guide plates 131 and a magnet 132, and the guide plates 131 are arranged side by side in parallel on both sides of the first rotating disk 12, thereby constituting a guide passage 135 of the resistor 14. The distance between the two guide plates 131 is substantially equal to the length of the resistor 14, i.e., the width of the guide passage 135 is substantially equal to the length of the resistor 14, which ensures that the resistor 14 is constantly attracted to a predetermined position of the circumferential surface of the first rotary plate 12. At least a portion of the first rotating disk 12 is positioned between the two magnets 132, i.e., within the guide channel 135.

The two magnets 132 are rectangular and are arranged side by side in a horn shape, i.e., at a predetermined angle. The two magnets 132 are disposed at such an angle that the resistor 14 is moved toward the circumferential surface of the first rotary disk 12 along the guide passage 135 by the magnetic force, thereby being attracted to the first attraction sections 121.

As shown in fig. 2, the two magnets 132 are disposed at an angle such that the magnetic force center of the magnet 132 is located at an imaginary line X, and the end point of the circumferential surface of the first rotating disk 12 is located at an imaginary line Y, which is located downstream of the imaginary line Y in the traveling direction of the resistor (as indicated by an arrow). Thus, the resistor 14 is constantly moved to the circumferential surface of the first turntable 12 by the magnetic force, and is attracted to the first attraction section 121.

As shown in fig. 3, the resistor 14 is a strip-shaped structure, and the leads of the resistor 14 are long and thin, and during the rotation of the first turntable 12, the tail of the lead may bend under the action of centrifugal force to branch, or may be deformed to branch due to other reasons.

As shown in fig. 4 to 5, the first suction part 121 is a magnetic groove, the shape of the first suction part 121 matches the shape of the resistor 14, and the first suction part 121 is sized to accommodate only a single resistor 14. In the present embodiment, since the resistor has a long shape, the first absorption part 121 is configured as a horizontal long groove. In other embodiments, the shape of the first adsorption part 121 may be adjusted according to the specific shape of the resistor. Specifically, a small magnetic block is disposed within the groove, thereby making the groove magnetic.

The second turntable 15 is located at one side of the first turntable 12, the diameter of the second turntable 15 is smaller than that of the first turntable 12, and a second adsorption part 151 for adsorbing the resistor 14 is arranged on the circumferential surface of the second turntable 15. In a specific embodiment, the second adsorption part 151 is a small magnetic block disposed on the circumferential surface of the second turntable 15.

The first turntable 12 rotates in synchronism with the second turntable 15. In a preferred embodiment, the first rotating disk 12 and the second rotating disk 15 realize power transmission by means of gear or belt transmission. When the positions of the first rotating disc 12 and the second rotating disc 15 are set, the circumferences of the first rotating disc and the second rotating disc are ensured to be in an internally tangent posture; meanwhile, when the gear ratio of the first turntable 12 to the second turntable 15 is set, it is ensured that the first adsorption part 121 and the second adsorption part 151 meet at a tangent point position (a position shown by a dotted line Z in fig. 4). In a particular embodiment, the tangent point is at the highest point of rotation of the first rotor disk 12.

In this way, the lead of the resistor 14, which has been adsorbed to the first adsorbing portion 121, is adsorbed by the second adsorbing portion 151, so that the lead of the resistor is in a straight posture without bending the tail of the lead of the resistor, and the lead of the resistor is ensured to enter the next process in a straight posture.

In a preferred embodiment, the number of the first adsorption parts 1 is X1 and is uniformly distributed on the circumferential surface of the first rotary disk 12; meanwhile, the number of the second adsorption parts 151 is X2 and is uniformly distributed on the circumferential surface of the second turntable 151. The transmission ratio of the first rotating disk 12 to the second rotating disk 15 is T, and then in order to control the first suction part 121 and the second suction part 151 to meet at the tangent point, the above parameters should satisfy T = X2/X1.

In the present invention, the guide mechanism 13 is provided with a magnet in a horn shape, so that the resistor 14 in the guide mechanism 13 is constantly moved in the direction of the first turntable 12 by the magnetic force. The resistors 14 moved to the circumferential surface of the first turntable 12 are adsorbed by the first adsorbing portions 121 provided on the circumferential surface of the first turntable 12, so that the automatic feeding of the resistors is realized by the guide mechanism 13 and the first turntable 12. Secondly, the pins of the resistor are long and thin, the tail of the lead can bend and branch under the action of centrifugal force in the rotating process of the first rotary disc 12, and the posture of the lead of the resistor adsorbed on the first rotary disc 12 is corrected by the second rotary disc 15 arranged in the invention, so that the resistor can be ensured to enter the next procedure in a straight posture.

The above embodiments are only for illustrating the concept and scope of the present invention and are not intended to limit the scope of the present invention. Modifications, equivalents and other improvements which are obvious to those skilled in the art are made to the above-described embodiments and are also within the spirit of the invention. The scope and spirit of the invention are defined by the appended claims.

Claims

1. Thermistor feeder, including support and actuating mechanism, its characterized in that, the thermistor feeder still includes:

the first rotary disc is arranged on the bracket and driven by the driving mechanism to rotate, and a first adsorption part for adsorbing the thermistor is arranged on the circumferential surface of the first rotary disc;

the guide mechanism is positioned on one side of the rotary disc and comprises two magnets and two guide plates, and the two guide plates are arranged in parallel side by side to form a guide channel of the resistor; at least a portion of the first carousel is located within the guide channel; and

the second turntable is positioned on one side of the first turntable, the diameter of the second turntable is smaller than that of the first turntable, and a second adsorption part for adsorbing the thermistor is arranged on the circumferential surface of the second turntable; wherein the content of the first and second substances,

the two magnets are arranged side by side at a preset angle, and the preset angle is set to enable the thermistor to move to the circumferential surface of the first turntable along the guide channel under the action of magnetic force so as to be adsorbed by the first adsorption part;

the first rotating disc and the second rotating disc rotate synchronously, the circumferences of the first rotating disc and the second rotating disc are internally tangent, and the first adsorption part and the second adsorption part meet at the tangent point position.

2. The thermistor feeder of claim 1, wherein the first and second rotating discs are driven by gears or belts.

3. A thermistor feeder as in claim 2,

the transmission ratio of the first rotating disc to the second rotating disc is T;

the number of the first adsorption parts is X1 and the first adsorption parts are uniformly distributed on the circumferential surface of the first rotating disc;

the number of the second adsorption parts is X2 and the second adsorption parts are uniformly distributed on the circumferential surface of the second turntable; wherein the above parameters satisfy T = X2/X1.

4. A thermistor feeder as in claim 1, characterised in that the first adsorption part comprises a magnetic recess, the shape of which matches the shape of the thermistor, the magnetic recess being sized to accommodate only a single resistor.

5. A thermistor feeder as claimed in claim 1, in which the second suction part is a magnetic block provided on the circumferential surface of the second turntable.

6. A thermistor feeder as claimed in claim 1, characterised in that the width of the guide channel is equal to the length of the thermistor.

7. A thermistor feeder as in claim 1, characterised in that the tangent point is located at the highest point of rotation of the first turntable.