阅读说明：本技术 高速生产线用的推动式电磁铁结构 (Push type electromagnet structure for high-speed production line ) 是由 唐洪珍 唐慧 王万年 王天甜 于 2020-12-03 设计创作，主要内容包括：本发明属于电磁铁技术领域,特别涉及一种高速生产线用的推动式电磁铁结构,包括一具有容置空间的壳体,所述的容置空间内设有一可移动且与壳体同轴芯布置的动铁芯杆,壳体的一端设有通孔供动铁芯杆伸出,临近通孔的壳体端部设有第一电磁线圈及包围该第一电磁线圈的第一静铁芯,壳体的另一端设有第二电磁线圈及包围该第二电磁线圈的第二静铁芯；其中,第一、第二电磁线圈的一端分别接入SPDT开关的第一端和第二端,第一、第二电磁线圈的另一端并接后与SPDT开关的第三端分别接入电源的正负极；本发明有效的避免了现有技术中动铁芯杆上残留有剩磁导致的反应慢的问题,也即,提高了动铁芯杆的反应速度,确保了在高速生产线上对产品控制的准确率。(The invention belongs to the technical field of electromagnets, and particularly relates to a push type electromagnet structure for a high-speed production line, which comprises a shell with an accommodating space, wherein a movable iron core rod which can move and is coaxially arranged with the shell is arranged in the accommodating space; one end of the first electromagnetic coil and one end of the second electromagnetic coil are respectively connected with the first end and the second end of the SPDT switch, and the other ends of the first electromagnetic coil and the second electromagnetic coil are respectively connected with the positive electrode and the negative electrode of the power supply after being connected in parallel with the third end of the SPDT switch; the invention effectively avoids the problem of slow reaction caused by residual magnetism remained on the moving iron core rod in the prior art, namely, the reaction speed of the moving iron core rod is improved, and the accuracy rate of controlling products on a high-speed production line is ensured.)

1. A push type electromagnet structure for a high-speed production line is characterized by comprising a shell (10) with an accommodating space (11), wherein a movable iron core rod (20) which can move and is coaxially arranged with the shell (10) is arranged in the accommodating space (11), a through hole (12) is formed in one end of the shell (10) for the movable iron core rod (20) to extend out, a first electromagnetic coil (30) and a first static iron core (31) surrounding the first electromagnetic coil (30) are arranged at the end part, close to the through hole (12), of the shell (10), and a second electromagnetic coil (40) and a second static iron core (41) surrounding the second electromagnetic coil (40) are arranged at the other end of the shell (10);

one end of the first electromagnetic coil (30) and one end of the second electromagnetic coil (40) are respectively connected with the first end and the second end of the SPDT switch, and the other end of the first electromagnetic coil (30) and the other end of the second electromagnetic coil (40) are connected in parallel and then are respectively connected with the third end of the SPDT switch to be connected with the positive electrode and the negative electrode of the power supply.

2. The push type electromagnet structure for the high-speed production line according to claim 1, wherein a baffle (13) is arranged in the accommodating space (11) of the housing (10), a round hole (131) is formed in the middle of the baffle (13) for the movable iron core rod (20) to pass through, a spring (21) is sleeved on the movable iron core rod (20), a blocking and leaning part (22) is arranged at one end of the movable iron core rod (20) far away from the through hole (12) in the housing (10), one end of the spring (21) is fixed on the blocking and leaning part (22), and the other end of the spring is fixed on the baffle (13).

3. A push type electromagnet structure for high speed production line according to claim 2, wherein the side of the baffle plate (13) and the stop part (22) adjacent to the spring (21) is provided with a ring-shaped groove for fixing the end of the spring (21).

4. A push type electromagnet structure for high speed production line according to claim 1, wherein a sleeve (14) is screwed on one end of the housing (10) far from the through hole (12), and the second electromagnetic coil (40) and the second stationary core (41) surrounding the second electromagnetic coil (40) are disposed at the outer end of the sleeve (14).

5. A push type electromagnet structure for high speed production line according to claim 4, characterized in that the outer end of the sleeve (14) is coated with a latticed rubber pad.

6. A push type electromagnet structure for high speed production line according to claim 1, characterized in that the end of the moving iron core bar (20) adjacent to the through hole (12) is sleeved with a rubber cap (23).

Technical Field

The invention belongs to the technical field of electromagnets, and particularly relates to a push type electromagnet structure for a high-speed production line.

Background

An electromagnet is a device that generates an electromagnet by being energized, and a conductive winding matched with the power of the electromagnet is wound outside an iron core, and a coil which is energized with current has magnetism like a magnet. In order to make the iron core easier to magnetize, the iron core is usually made into a strip shape or a horseshoe shape, and in order to make the electromagnet demagnetized immediately after power failure, the electromagnet is often made of soft iron or silicon steel materials with fast demagnetization, the electromagnet has magnetism when being electrified, and the magnetism disappears after the power failure, so that the electromagnet is widely applied in daily life.

The existing common application is to convert electric energy into mechanical energy of linear motion by using an electromagnet, for example, a push type electromagnet widely used at present has a simpler structure, lower cost, lower noise and longer service life than a motor and a conversion mechanism during linear motion, and the magnetism of the electromagnet is controlled by on-off current and the number of turns of a coil. At present, in the field of product outer packaging of an automatic production line, a large number of electromagnets are used for carrying out control actions in some production.

The present widely used push type electromagnet is composed of a shell, a static iron core, a movable iron core and an electromagnetic coil, when the electromagnetic coil is electrified, the electromagnetic coil and the static iron core surrounding the electromagnetic coil generate magnetic field attraction force to act on the movable iron core, so that the attraction force acts on the movable iron core, the corresponding actuating mechanism is enabled to complete production action, when the electromagnetic coil is powered off, the magnetic field generated by the electromagnetic coil and the static iron core surrounding the electromagnetic coil disappears, a return mechanism connected with the movable iron core acts on the movable iron core to reset the movable iron core, and therefore, the reciprocating action of the movable iron core is controlled by the existence and nonexistence of the magnetic field generated by the electrification and the outage of the electromagnetic. In the prior art, in the industries of pharmacy, food, printing, tobacco and the like, the flow speed of products on a high-speed production line is very high, residual magnetism still remains on a movable iron core after the current push type electromagnet is powered off, the reaction speed is slow, and the accuracy rate of controlling the products on the high-speed production line is difficult to achieve.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provides a push type electromagnet structure for a high-speed production line, which has the advantage of high return action speed of a movable iron core and ensures the accuracy of product control on the high-speed production line.

In order to achieve the purpose, the invention adopts the following technical scheme:

a push type electromagnet structure for a high-speed production line comprises a shell with an accommodating space, wherein a movable iron core rod which is movable and is coaxially arranged with the shell is arranged in the accommodating space, a through hole is formed in one end of the shell for the movable iron core rod to extend out, a first electromagnetic coil and a first static iron core surrounding the first electromagnetic coil are arranged at the end part of the shell close to the through hole, and a second electromagnetic coil and a second static iron core surrounding the second electromagnetic coil are arranged at the other end of the shell;

one end of the first electromagnetic coil and one end of the second electromagnetic coil are respectively connected with the first end and the second end of the SPDT switch, and the other ends of the first electromagnetic coil and the second electromagnetic coil are connected in parallel and then are respectively connected with the third end of the SPDT switch through the positive electrode and the negative electrode of the power supply.

In a further technical scheme, a baffle is arranged in the accommodating space of the shell, a round hole is formed in the middle of the baffle for the movable iron core rod to penetrate through, a spring is sleeved on the movable iron core rod, a blocking and leaning part is arranged at one end, far away from the through hole in the shell, of the movable iron core rod, one end of the spring is fixed on the blocking and leaning part, and the other end of the spring is fixed on the baffle.

In a further technical scheme, the baffle and one side of the blocking part close to the spring are provided with annular grooves for fixing the end part of the spring.

In a further technical scheme, a sleeve is screwed at one end of the shell, which is far away from the through hole, and the second electromagnetic coil and a second static iron core surrounding the second electromagnetic coil are arranged at the outer end of the sleeve.

In a further technical scheme, a latticed rubber pad is laid at the outer end of the sleeve.

In a further technical scheme, a rubber cap is sleeved at the end part of the moving iron core rod close to the through hole.

Compared with the prior art, the invention has the following technical effects:

1. compared with the push type electromagnet structure which is only provided with one electromagnetic coil to drive the moving iron core rod in the prior art, the push type electromagnet structure is provided with the second electromagnetic coil at the other end of the shell body provided with the first electromagnetic coil, and the first and second electromagnetic coils are respectively connected to the power supply through the SPDT switch, so that, when the first electromagnetic coil is electrified, a magnetic field is generated to drive the moving iron core rod to move, the moving iron core rod extends out of the through hole to act on a corresponding actuating mechanism, when the moving iron core rod needs to be moved reversely to reset, the SPDT switch switches and connects the second electromagnetic coil to the power supply, the movable iron core rod is reset by generating the magnetic field, and the technical scheme provided by the invention effectively avoids the problem of slow reaction caused by residual magnetism remained on the movable iron core rod in the prior art, namely, the reaction speed of the movable iron core rod is improved, and the accuracy of controlling products on a high-speed production line is ensured.

2. In the invention, the movable iron core rod is sleeved with the spring, although the structure is the prior art, the structure is matched with the second electromagnetic coil, when the movable iron core rod is used specifically, the second electromagnetic coil and the second static iron core surrounding the second electromagnetic coil generate driving force for the movable iron core rod, so that the spring is further compressed, after the SPDT switch is switched, the elastic potential energy of the spring is released, and the movable iron core rod obtains higher speed in a shorter stroke to act on an actuating mechanism by matching with the magnetic field generated by the first electromagnetic coil, namely, the acting force of the push type electromagnet structure is improved.

Additional features and advantages of the invention will be set forth in the detailed description which follows.

Drawings

FIG. 1 is a schematic diagram of a push-type electromagnet structure for a high-speed production line according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a moving iron core rod according to an embodiment of the present invention;

FIG. 3 is a schematic diagram showing the electrical connections of the first and second electromagnetic coils of the present invention;

the reference numbers in the figures illustrate: 10-shell, 11-accommodating space, 12-through hole, 13-baffle, 131-round hole, 14-sleeve, 20-movable iron core rod, 21-spring, 22-baffle part, 23-rubber cap, 30-first electromagnetic coil, 31-first static iron core, 40-second electromagnetic coil and 41-second static iron core.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further clarified by combining the specific drawings.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-3, the present invention provides a push-type electromagnet structure for high-speed production, including a housing 10 having an accommodating space 11, a movable iron core rod 20 disposed in the accommodating space 11 and coaxially with the housing 10, a through hole 12 provided at one end of the housing 10 for the movable iron core rod 20 to extend out, a first electromagnetic coil 30 and a first stationary iron core 31 surrounding the first electromagnetic coil 30 provided at an end of the housing 10 adjacent to the through hole 12, and a second electromagnetic coil 40 and a second stationary iron core 41 surrounding the second electromagnetic coil 40 provided at the other end of the housing 10; one end of the first electromagnetic coil 30 and one end of the second electromagnetic coil 40 are respectively connected to the first end and the second end of the SPDT switch, and the other end of the first electromagnetic coil 30 and the other end of the second electromagnetic coil 40 are connected in parallel and then connected to the third end of the SPDT switch respectively to the positive electrode and the negative electrode of the power supply.

In the technical scheme provided by the invention, after the first electromagnetic coil 30 is powered off by switching the SPDT switch, the second electromagnetic coil 40 is immediately switched on to generate a magnetic field by current, so that the problem of residual magnetism on the moving iron core rod is solved, reverse restoring force is applied to the moving iron core rod, the action frequency of the electromagnet is accelerated, the working requirement of automatic control of a high-speed production line is further met, and the working efficiency of the automatic production line is improved.

Further, in the present invention, a baffle 13 is disposed in the accommodating space 11 of the housing 10, a circular hole 131 is disposed in the middle of the baffle 13 for the moving iron core rod 20 to pass through, a spring 21 is sleeved on the moving iron core rod 20, a blocking portion 22 is disposed at one end of the moving iron core rod 20 away from the through hole 12 of the housing 10, one end of the spring 21 is fixed on the blocking portion 22, and the other end is fixed on the baffle 13.

In the invention, the spring 21 is a traditional return mechanism, and the working principle is that elastic potential energy is stored in the process that the first electromagnetic coil 30 generates a magnetic field to drive the moving iron core rod 20 to move, and the moving iron core rod 20 is reset through the elasticity of the spring 21 after the first electromagnetic coil 30 is powered off; in the present invention, the spring 21 can cooperate with the second electromagnetic coil 40 to produce an effect, specifically, when the first electromagnetic coil 30 is powered off and the second electromagnetic coil 40 is powered on, the spring 21 is restored and stretched, and when the SPDT switch is switched again to power off the second electromagnetic coil 40 and the first electromagnetic coil 30 is powered on, the elastic force of the spring 21 cooperates with the magnetic field generated by the first electromagnetic coil 30 to enable the moving iron core rod 20 to obtain a higher speed to act on the actuator in a shorter stroke, that is, the acting force of the push type electromagnet structure is improved.

Further, according to the present invention, in order to ensure the stability of the spring 21 during the extension and compression processes, the side of the stop plate 13 and the stop portion 22 adjacent to the spring 21 are provided with an annular groove for fixing the end of the spring 21 therein.

In the present invention, for the convenience of assembly, a sleeve 14 is screwed on one end of the housing 10 away from the through hole 12, and the second electromagnetic coil 40 and a second stationary core 41 surrounding the second electromagnetic coil 40 are disposed at the outer end of the sleeve 14. It should be noted that a mounting space is reserved between the end of the moving-iron core rod 20 and the outer end of the sleeve 14, and the mounting space can be used as a space for the moving-iron core rod 20 to move outwards under the action of the second electromagnetic coil 40.

Furthermore, in the present invention, a latticed rubber pad is laid on the outer end of the sleeve 14 as a buffer.

In the invention, in order to prevent the moving iron core rod 20 from damaging the actuator caused by collision, the end part of the moving iron core rod 20 adjacent to the through hole 12 is sleeved with a rubber cap 23. This rubber cap 23 can provide cushioning during impact of the moving iron core rod 20 against the actuator.

The foregoing shows and describes the general principles, essential features, and inventive features of this invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.