Power frequency induction furnace for bar heating

Abstract

The utility model discloses a power frequency induction furnace for bar heating, which comprises an induction furnace body, a protective cylinder is inserted into the feed end of the induction furnace body, the protective cylinder is coaxial with a heating cavity of the induction furnace body, the protective cylinder is provided with a tapered guide cone, and the guide cone is coaxially provided with a connecting cylinder; the discharging end of the induction furnace body is provided with a discharging structure which is used for enabling a bar to be coaxial with a heating cavity of the induction furnace body; the discharging structure comprises a shell, the shell is rotationally connected with a two-way lead screw, a servo motor for driving the two-way lead screw to rotate is arranged on the upper portion of the shell, two reverse threaded sections of the two-way lead screw are connected with fixing rods through lead screw nut seats, and the two fixing rods are rotationally provided with V-shaped rolling wheels which correspond to each other up and down. The anti-collision device can ensure that the bars enter the heating cavity of the induction furnace body in the middle, is good in anti-collision protection effect, can bear collision of the bars, and can be suitable for the bars of different specifications.

Description

TECHNICAL FIELD

[0001] The utility model relates to induction furnace technical field, concretely is a kind of bar heating with power frequency induction furnace. BACKGROUND

[0002] Electric furnace using the induction electric heating effect of material to heat or melt the material. Induction furnace uses AC power supply has power frequency, intermediate frequency and high frequency 3 kinds, the main components of induction furnace have inductor, furnace body, power supply, capacitor and control system etc. Under the action of alternating electromagnetic field in induction furnace, material internal eddy current is generated to achieve the effect of heating or melting. The existing power frequency induction furnace when heating bar, generally is directly into heating furnace with bar, difficult to realize uniform heating, bar surface is easily unevenly heated, and different specifications of bar may impact induction furnace furnace body when entering, it can lead to furnace mouth damage deformation after long-term use, affect use. UTILITY MODEL CONTENTS

[0003] The technical problem to be solved by the utility model is to overcome the defects of the prior art, provide a power frequency induction furnace for bar heating, which can ensure that the bar is centrally inserted into the heating cavity of the induction furnace body, has good anti-collision protection effect, can withstand the impact of the bar, can be suitable for bars of different specifications, and can effectively solve the problems in the background art.

[0004] To achieve the above object, the utility model provides the following technical scheme: a power frequency induction furnace for bar heating, which comprises an induction furnace body, a protective cylinder is inserted into the feeding end of the induction furnace body, the protective cylinder is coaxial with the heating cavity of the induction furnace body, the protective cylinder has a tapered guide cone cylinder, and the guide cone cylinder is coaxially provided with a connecting cylinder.

[0005] The discharge structure comprises a shell, the shell is rotationally connected with a bidirectional screw rod, a servo motor is arranged on the upper part of the shell to drive the rotation of the bidirectional screw rod, both reverse threaded segments of the bidirectional screw rod are connected with fixed rods through screw rod nut seats, and the two fixed rods are rotationally provided with V-shaped rollers corresponding in upper and lower positions.

[0006] Preferably, the end surface of the protective cylinder is sleeved with a connecting rod, one end of the connecting rod is connected with the induction furnace body, the connecting rod is sleeved with a buffer spring, the two ends of the buffer spring are respectively in abutment with the end of the protective cylinder and the induction furnace body, the connecting rod is also threadedly connected with a nut, and the nut is in abutment with the end of the protective cylinder.

[0007] Preferably, the connecting rod, the buffer spring and the nut are all correspondingly provided with four groups.

[0008] Preferably, the feeding end of the induction furnace body is provided with a fixing sleeve, and the connecting cylinder is inserted into the fixing sleeve and gap-fitted therebetween.

[0009] Preferably, the induction furnace body is connected to the shell via a connecting plate.

[0010] Preferably, the lower part of the induction furnace body is provided with a support.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting a protective cylinder in the furnace body of the induction furnace, the protective cylinder has a guide cone, which facilitates the rod to enter in the center. In addition, it is also equipped with a connecting rod and a buffer spring, that is, when the rod enters and hits the protective cylinder, the buffer spring can buffer and reduce the shock, which has a good anti-collision protection effect and can withstand the impact of the rod; by setting a discharge structure to center the rod, it ensures the uniformity of heating of the rod surface; by using a servo motor to drive two V-shaped rollers to adjust the distance, it can be used for rods of different specifications. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of a partial structure of the present invention. Figure One ;

[0014] Figure 3 This is a schematic diagram of a partial structure of the present invention. Figure Two .

[0015] In the diagram: 1. Induction furnace body, 1.1. Support, 1.2. Fixing sleeve, 2. Protective cylinder, 2.1. Guide cone, 2.2. Connecting cylinder, 3. Connecting rod, 4. Nut, 5. Buffer spring, 6. Discharge structure, 6.1. Servo motor, 6.2. Bidirectional lead screw, 6.3. Housing, 6.4. Fixing rod, 6.5. V-type roller. Detailed Implementation

[0016] The present invention can be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right" indicating the orientation or positional relationship, they are only corresponding to the drawings of this application for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation.

[0017] Please see Figures 1-3This utility model provides a technical solution: an industrial frequency induction furnace for heating bars, including an induction furnace body 1, a protective cylinder 2 inserted into the feeding end of the induction furnace body 1, the protective cylinder 2 being coaxial with the heating chamber of the induction furnace body 1, the protective cylinder 2 having a tapered guide cone 2.1, and a connecting cylinder 2.2 coaxially provided on the guide cone 2.1; when the bar enters, it contacts the guide cone 2.1 and is guided into the furnace, avoiding direct impact of the bar on the feeding port of the induction furnace body, thus extending its service life;

[0018] The discharge end of the induction furnace body 1 is provided with a discharge structure 6 for ensuring that the bar material is coaxial with the heating cavity of the induction furnace body 1. Specifically, the discharge structure 6 includes a housing 6.3, a bidirectional lead screw 6.2 rotatably connected to the housing 6.3, and a servo motor 6.1 driving the bidirectional lead screw 6.2 to rotate on the upper part of the housing 6.3. The two reverse threaded sections of the bidirectional lead screw 6.2 are each connected to a fixed rod 6.4 through a lead screw nut seat. The two fixed rods 6.4 are each rotated with corresponding upper and lower V-shaped rollers 6.5. The two V-shaped rollers 6.5 are symmetrical about the heating cavity axis of the induction furnace body 1. That is, the servo motor 6.1 drives the bidirectional lead screw 6.2 to rotate, and the bidirectional lead screw 6.2 drives the two fixed rods 6.4 to move relative to each other or in opposite directions through the lead screw nut seats on both sides, thereby adjusting the distance between the two V-shaped rollers 6.5. This can be applied to bars of different specifications, ensuring that the axis of the bar material coincides with the axis of the heating cavity of the induction furnace body 1, and ensuring uniform heating of the bar material surface.

[0019] Furthermore, a connecting rod 3 is sleeved on the end face of the protective cylinder 2. One end of the connecting rod 3 is connected to the furnace body 1 of the induction furnace. A buffer spring 5 is sleeved on the connecting rod 3. The two ends of the buffer spring 5 respectively abut against the end of the protective cylinder 2 and the furnace body 1 of the induction furnace. The connecting rod 3 is also threaded with a nut 4. The nut 4 abuts against the end of the protective cylinder 2. By setting the buffer spring 5, the potential energy of the rod impacting the protective cylinder 2 is reduced, thereby achieving the effect of shock absorption and protection.

[0020] It should be noted that the connecting rod 3, the buffer spring 5, and the nut 4 are each provided with four sets, which provides better shock absorption and protection.

[0021] Furthermore, the induction furnace body 1 is provided with a fixed sleeve 1.2 at the feeding end, and a connecting cylinder 2.2 is inserted into the fixed sleeve 1.2 with a clearance fit between the two. The fixed sleeve 1.2 moves within the connecting cylinder 2.2, and when the protective cylinder 2 is impacted, it limits the direction of movement of the connecting cylinder 2.2.

[0022] In addition, the induction furnace body 1 is connected to the shell 6.3 via a connecting plate; a support 1.1 is provided at the lower part of the induction furnace body 1.

[0023] The parts of this utility model not described in detail are prior art. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that this utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and are intended to include all changes that fall within the meaning and scope of equivalents in the content of this utility model.

Claims

1. A power frequency induction furnace for heating bar stock, comprising an induction furnace body (1), characterized in that: The feed end of the induction furnace body (1) is connected to a protective cylinder (2), which is coaxial with the heating chamber of the induction furnace body (1). The protective cylinder (2) has a tapered guide cone (2.1), and the guide cone (2.1) is coaxially provided with a connecting cylinder (2.2). The discharge end of the induction furnace body (1) is provided with a discharge structure (6) for making the bar material coaxial with the heating chamber of the induction furnace body (1). The discharge structure (6) includes a housing (6.3), a bidirectional lead screw (6.2) is rotatably connected to the housing (6.3), a servo motor (6.1) is provided on the upper part of the housing (6.3) to drive the bidirectional lead screw (6.2) to rotate, and the two reverse threaded sections of the bidirectional lead screw (6.2) are connected to fixed rods (6.4) through lead screw nut seats. The two fixed rods (6.4) are each equipped with corresponding upper and lower V-shaped rollers (6.5).

2. The industrial frequency induction furnace for heating bars according to claim 1, characterized in that: The end face of the protective cylinder (2) is fitted with a connecting rod (3). One end of the connecting rod (3) is connected to the furnace body (1) of the induction furnace. The connecting rod (3) is fitted with a buffer spring (5). The two ends of the buffer spring (5) respectively abut against the end of the protective cylinder (2) and the furnace body (1) of the induction furnace. The connecting rod (3) is also threaded with a nut (4). The nut (4) abuts against the end of the protective cylinder (2).

3. The industrial frequency induction furnace for heating bars according to claim 2, characterized in that: The connecting rod (3), buffer spring (5) and nut (4) are each provided with four sets.

4. The industrial frequency induction furnace for heating bars according to claim 1, characterized in that: The induction furnace body (1) has a fixed sleeve (1.2) at the feeding end, and a connecting cylinder (2.2) is inserted into the fixed sleeve (1.2) with a clearance fit between the two.

5. The industrial frequency induction furnace for heating bars according to claim 1, characterized in that: The induction furnace body (1) is connected to the shell (6.3) via a connecting plate.

6. The industrial frequency induction furnace for heating bars according to claim 1, characterized in that: The lower part of the induction furnace body (1) is provided with a support (1.1).

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