Front stepping feeding device of intermediate frequency furnace

Abstract

The utility model relates to the technical field of automobile plate spring production equipment, and particularly discloses an intermediate frequency furnace front stepping feeding device which comprises a lifting stepping movable beam and a lifting static beam, the lifting stepping movable beam is installed on a movable beam stepping mechanism, the movable beam stepping mechanism is provided with a stepping air cylinder, the stepping air cylinder drives the lifting stepping movable beam to move, and the lifting static beam drives the lifting stepping movable beam to move. The movable beam stepping mechanism is installed on the movable beam lifting mechanism, a movable beam lifting air cylinder drives a first cam to rotate, the first cam is installed at the bottom of the lifting stepping movable beam, and the movable beam lifting air cylinder drives the lifting stepping movable beam to ascend and descend through the first cam. The lifting static beam is installed on the static beam lifting mechanism, a static beam lifting air cylinder drives a second cam to rotate, the second cam is installed at the bottom of the lifting static beam, and the static beam lifting air cylinder drives the lifting static beam to ascend and descend through the second cam. The static beam and the movable beam are both provided with the swing rod type lifting mechanisms, so that the plate spring is stable and free of fluctuation when moving, enough gaps exist among the plates all the time, and the plates are free of sparking and adhesion at high temperature.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile leaf spring production equipment, in particular to a step-feeding device in front of a medium frequency furnace. Background Art

[0002] Currently, in the automotive leaf spring production industry, there are two main methods of feeding the springs into the furnace: a chain-type feeding mechanism, which uses two or more chains as conveyor belts to move the leaf springs through the furnace. The other is a step-type feeding mechanism, which uses a fixed-height static beam and a rising and sliding dynamic beam.

[0003] Disadvantages of the chain-type furnace front feeding mechanism: Chain feeding can ensure that the leaf springs are roughly at a horizontal height when they are transported in the furnace, and the opening of the medium-frequency furnace does not need to be too large. However, the chain-type feeding device requires at least two chains for transmission. Because there is a difference in friction between a single chain and the leaf spring, it is very easy to cause the leaf spring to skew or slide during movement, causing two or more leaf springs to be stuck together. Electric sparks are easily generated when heating in the medium-frequency furnace, and when the leaf spring reaches a high temperature, it is easy to cause adhesion. The leaf spring and the chain are both made of metal. During electromagnetic heating, an electromagnetic closed loop is easily generated. The electromagnetic radiation will cause the support frame to generate high temperature, destroying its surface organization and stress structure, and greatly reducing the service life of the frame.

[0004] Disadvantages of a step-by-step feed mechanism: A step-by-step feed mechanism typically uses a set of static beams to maintain the support height; a separate set of dynamic beams lifts the leaf spring upward to a certain height, freeing it from the support surface, before moving it horizontally. This approach necessitates a large opening in the IF furnace, reducing its heating capacity and increasing energy consumption. Similarly, step-by-step feed mechanisms also suffer from the drawback of electromagnetic induction circuits causing the support frame to heat up.

[0005] Therefore, it is urgent to design a medium frequency furnace front stepping feeding device to solve the following problems:

[0006] 1. When the leaf springs are transmitted on the chain, they will come close together and sparks will flash. When the leaf springs reach high temperature, adhesion will occur between the leaves.

[0007] 2. The leaf spring acts as an electric carrier, causing the feeding device in front of the furnace and the furnace body to form an electromagnetic circuit, causing the feeding bracket to heat up.

[0008] 3. The leaf spring uses the traditional step-by-step feeding method, which requires upward avoidance space, causing the opening of the medium frequency furnace to be additionally enlarged and the heating efficiency to be reduced. Utility Model Content

[0009] In view of the problems existing in the prior art, the purpose of the present invention is to provide a medium frequency furnace front step feeding device.

[0010] The technical solution adopted by the utility model to solve its technical problems is: a medium frequency furnace front stepping feeding device, including a lifting stepping moving beam and a lifting static beam, the lifting stepping moving beam is installed on the moving beam stepping mechanism, the moving beam stepping mechanism is provided with a stepping cylinder, the stepping cylinder drives the lifting stepping moving beam to move, the moving beam stepping mechanism is installed on the moving beam lifting mechanism, the moving beam lifting mechanism is provided with a moving beam lifting cylinder and a cam, the moving beam lifting cylinder drives the cam to rotate, the cam is installed at the bottom of the lifting stepping moving beam, and the moving beam lifting cylinder drives the lifting stepping moving beam to move up and down through the cam;

[0011] The lifting static beam is installed on the static beam lifting mechanism. The static beam lifting mechanism is provided with a static beam lifting cylinder and cam 2. The static beam lifting cylinder drives cam 2 to rotate. Cam 2 is installed at the bottom of the lifting static beam. The static beam lifting cylinder drives the lifting static beam to rise and fall through cam 2.

[0012] Specifically, the movable beam lifting cylinder is relatively provided with two groups, the rear part of the movable beam lifting cylinder is rotatably connected to the cylinder seat one through a pin shaft, the cylinder seat one is installed on the frame, the cylinder rod of the movable beam lifting cylinder is rotatably connected to the rotating block one through a pin shaft, the rotating block one is fixedly connected to the middle part of the rotating shaft one, and the rotating shaft one is rotatably installed on the frame through two bearing seats one.

[0013] Specifically, the other side of the rotating block 1 is connected to the connecting rod 1 through a pin shaft, and the other end of the connecting rod 1 is connected to the rotating block 1 on the other side through a pin shaft. The movable beam lifting cylinder drives the two rotating shafts 1 on the same side to rotate simultaneously and synchronously through the connecting rod 1.

[0014] Specifically, a cam is installed at one end of the rotating shaft, and the moving beam stepping mechanism is also provided with a slide and a guide rail. The inner side of the lower part of the slide slides and contacts the cam. The cam rotates to lift or lower the lifting stepping moving beam. The upper part of the slide slides and connects to the guide rail. The guide rail is installed at the bottom of the lifting stepping moving beam. The middle part of the lifting stepping moving beam is connected to the cylinder rod of the stepping cylinder. The cylinder body of the stepping cylinder is installed on the slide through a bracket.

[0015] Specifically, a leaf spring bracket is installed on both sides of the lifting stepping moving beam close to the moving beam lifting cylinder, and an insulating support body is installed on the upper part of the leaf spring bracket.

[0016] Specifically, the static beam lifting mechanism adopts the same structure as the dynamic beam lifting mechanism. Two groups of static beam lifting cylinders are arranged relatively to each other. The rear part of the static beam lifting cylinder is rotatably connected to the cylinder seat 2 through a pin shaft. The cylinder seat 2 is installed on the frame. The cylinder rod of the static beam lifting cylinder is rotatably connected to the rotating block 2 through a pin shaft. The rotating block 2 is fixedly connected to the middle part of the rotating shaft 2. The rotating shaft 2 is rotatably installed on the frame through two bearing seats 2.

[0017] Specifically, the other side of the rotating block 2 is connected to the connecting rod 2 through a pin shaft, and the other end of the connecting rod 2 is connected to the rotating block 2 on the other side through a pin shaft. The static beam lifting cylinder simultaneously drives the two rotating shafts 2 on the same side to rotate through the connecting rod 2. A cam 2 is installed at one end of the rotating shaft 2. The cam 2 slides in contact with the inner side of the mounting seat. The mounting seat is installed at the bottom of the lifting static beam. The cam 2 rotates to lift or lower the lifting static beam.

[0018] Specifically, leaf spring brackets 2 are installed on both sides of the lifting static beam close to the static beam lifting cylinder, and insulating support bodies 2 are installed on the upper part of the leaf spring brackets 2.

[0019] Specifically, the frame is installed on one side of the medium frequency furnace.

[0020] The utility model has the following beneficial effects:

[0021] The static beam and the moving beam of the intermediate frequency furnace front step feeding device designed by the utility model are both provided with a rocker type lifting mechanism, so the static beam can lower its height downward to avoid the leaf spring, and the translation of the leaf spring in the furnace can be maintained at the same horizontal height, without the need for an enlarged design of the furnace mouth.

[0022] The medium frequency furnace front stepping feeding device designed by the utility model makes the leaf spring move smoothly and without fluctuation, and there is always enough gap between the leaves, so there will be no sparks and no adhesion at high temperature.

[0023] The supporting surface of the medium frequency furnace front step feeding device designed by the utility model adopts wear-resistant and heat-resistant high-performance ceramic blocks, which insulates the electromagnetic effects of the leaf spring and the support frame and does not cause heating and damage to the furnace front frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural diagram of the step-feeding device in front of the medium frequency furnace.

[0025] As shown in the figure: 1-lifting stepping moving beam; 2-moving beam lifting mechanism, 2.1-moving beam lifting cylinder, 2.2-rotating shaft 1, 2.3-rotating block 1, 2.4-connecting rod 1, 2.5-bearing seat 1, 2.6-cylinder seat 1, 2.7-cam 1;

[0026] 3-Moving beam stepping mechanism, 3.1-Slide seat, 3.2-Guide rail, 3.3-Stepping cylinder, 3.4-Leaf spring bracket 1, 3.5-Insulating support body 1;

[0027] 4-lifting static beam, 4.1-leaf spring bracket 2, 4.2-insulating support body 2;

[0028] 5-static beam lifting mechanism, 5.1-static beam lifting cylinder, 5.2-bearing seat 2, 5.3-cylinder seat 2;

[0029] 6- rack; 7- intermediate frequency furnace. DETAILED DESCRIPTION

[0030] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely further describe the technical solutions in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] like Figure 1 As shown, a stepping feeding device in front of an intermediate frequency furnace includes a lifting stepping moving beam 1, a moving beam lifting mechanism 2, a moving beam stepping mechanism 3, a lifting static beam 4, a static beam lifting mechanism 5 and a frame 6, and the frame 6 is installed on one side of the intermediate frequency furnace 7.

[0032] The lifting stepping moving beam 1 is installed on the moving beam stepping mechanism 3. The moving beam stepping mechanism 3 is provided with a slide 3.1, a guide rail 3.2 and a stepping cylinder 3.3. The inner side of the lower part of the slide 3.1 slides and contacts the cam 2.7. The rotation of the cam 2.7 controls the lifting or falling of the lifting stepping moving beam 1. The upper part of the slide 3.1 slides and connects to the guide rail 3.2. The guide rail 3.2 is installed at the bottom of the lifting stepping moving beam 1. The middle part of the lifting stepping moving beam 1 is connected to the cylinder rod of the stepping cylinder 3.3. The cylinder body of the stepping cylinder 3.3 is installed on the slide 3.1 through the bracket. The stepping cylinder 3.3 drives the lifting stepping moving beam 1 to move along the guide rail 3.2.

[0033] The moving beam stepping mechanism 3 is installed on the moving beam lifting mechanism 2. The moving beam lifting mechanism 2 is equipped with a moving beam lifting cylinder 2.1 and a cam 2.7. The moving beam lifting cylinder 2.1 drives the cam 2.7 to rotate. The cam 2.7 is installed at the bottom of the lifting stepping moving beam 1. The moving beam lifting cylinder 2.1 drives the lifting stepping moving beam to rise and fall through the cam 2.7.

[0034] There are two groups of movable beam lifting cylinders 2.1 relatively arranged. The rear part of movable beam lifting cylinder 2.1 is rotatably connected to cylinder seat 2.6 through a pin shaft. Cylinder seat 2.6 is installed on the frame 6. The cylinder rod of movable beam lifting cylinder 2.1 is rotatably connected to rotating block 2.3 through a pin shaft. Rotating block 2.3 is fixedly connected to the middle part of rotating shaft 2.2. Rotating shaft 2.2 is rotatably installed on frame 6 through two bearing seats 2.5. A cam 2.7 is installed at one end of rotating shaft 2.2.

[0035] The other side of the rotating block 2.3 is connected to the connecting rod 2.4 through a pin shaft, and the other end of the connecting rod 2.4 is connected to the rotating block 2.3 on the other side through a pin shaft. The movable beam lifting cylinder 2.1 drives the two rotating shafts 2.2 on the same side to rotate synchronously through the connecting rod 2.4.

[0036] A leaf spring bracket 3.4 is installed on both sides of the lifting stepping moving beam 1 close to the moving beam lifting cylinder 2.1, and an insulating support body 3.5 is installed on the upper part of the leaf spring bracket 3.4. The insulating support body 3.5 is made of high-temperature resistant insulating ceramic.

[0037] The lifting static beam 4 is installed on the static beam lifting mechanism 5. The static beam lifting mechanism 5 is provided with a static beam lifting cylinder 5.1 and cam 2. The static beam lifting cylinder 5.1 drives cam 2 to rotate. Cam 2 is installed at the bottom of the lifting static beam 4. The static beam lifting cylinder 5.1 drives the lifting static beam 4 to rise and fall through cam 2.

[0038] The static beam lifting mechanism 5 adopts the same structure as the dynamic beam lifting mechanism 2. Two groups of static beam lifting cylinders 5.1 are relatively arranged. The rear part of the static beam lifting cylinder 5.1 is rotatably connected to the cylinder seat 2 5.3 through a pin shaft. The cylinder seat 2 5.3 is installed on the machine 6. The cylinder rod of the static beam lifting cylinder 5.1 is rotatably connected to the rotating block 2 through a pin shaft. The rotating block 2 is fixedly connected to the middle part of the rotating shaft 2. The rotating shaft 2 is rotatably installed on the frame 6 through two bearing seats 2 5.2.

[0039] The other side of the rotating block 2 is connected to the connecting rod 2 through a pin shaft, and the other end of the connecting rod 2 is connected to the rotating block 2 on the other side through a pin shaft. The static beam lifting cylinder 5.1 drives the two rotating shafts 2 on the same side to rotate simultaneously through the connecting rod 2. One end of the rotating shaft 2 is installed with a cam 2, and the cam 2 slides in contact with the inner side of the mounting seat. The mounting seat is installed at the bottom of the lifting static beam 4. The cam 2 rotates to lift or lower the lifting static beam 4.

[0040] A leaf spring bracket 2 4.1 is installed on both sides of the lifting static beam 4 close to the static beam lifting cylinder 5.1, and an insulating support body 2 4.2 is installed on the upper part of the leaf spring bracket 2 4.1. The insulating support body 2 4.2 is made of high-temperature resistant insulating ceramics.

[0041] The lifting static beam 4 is located inside the lifting stepping moving beam 1. The leaf spring bracket 2 4.1 installed on the lifting static beam 4 and the leaf spring bracket 1 3.4 installed on the lifting stepping moving beam 1 are staggered and do not affect the lifting of each other.

[0042] The working principle of this utility model:

[0043] In the initial state, the static lifting beam 4 supports the leaf spring, and the bottom surface of the leaf spring is 2-5mm away from the furnace bottom. When the leaf spring needs to be moved, the stepping moving beam 1 is first raised to the same height as the static lifting beam 4, and then the static lifting beam 4 is lowered to avoid it. Then the stepping moving beam 1 moves horizontally by a plate width + (2-5mm) interval, and the static lifting beam 4 is raised to support the leaf spring. After that, the stepping moving beam 1 is lowered and returns to the initial position. During this process, the static lifting beam 4 and the stepping moving beam 1 alternately avoid downward, and the bottom surface of the leaf spring can be kept on the same horizontal plane. Therefore, there is no need to increase the opening of the heating furnace.

[0044] The horizontal displacement distance of the lifting stepping moving beam 1 is controlled by the regulating cylinder, and the translation process is smooth and vibration-free.

[0045] The contact surfaces between the lifting static beam 4 and the lifting stepping moving beam 1 and the leaf spring are made of wear-resistant and heat-resistant high-performance ceramic blocks. Due to the insulating properties of the ceramic, the support part will not form a closed electromagnetic circuit due to the connection of the leaf spring, so the bracket will not heat up or generate electric sparks between it and the leaf spring.

[0046] The present invention is not limited to the above-mentioned embodiments. Anyone should be aware of the structural changes made under the inspiration of the present invention. Any technical solution that is the same or similar to the present invention falls within the scope of protection of the present invention.

[0047] The technology, shape and structure that are not described in detail in this utility model are all well-known technologies.

[0048] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0049] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A medium frequency furnace front step feeding device, characterized in that: It includes a lifting stepping moving beam and a lifting static beam, the lifting stepping moving beam is installed on the moving beam stepping mechanism, the moving beam stepping mechanism is provided with a stepping cylinder, the stepping cylinder drives the lifting stepping moving beam to move, the moving beam stepping mechanism is installed on the moving beam lifting mechanism, the moving beam lifting mechanism is provided with a moving beam lifting cylinder and a cam, the moving beam lifting cylinder drives the cam to rotate, the cam is installed at the bottom of the lifting stepping moving beam, and the moving beam lifting cylinder drives the lifting stepping moving beam to move up and down through the cam; The lifting static beam is installed on the static beam lifting mechanism. The static beam lifting mechanism is provided with a static beam lifting cylinder and cam 2. The static beam lifting cylinder drives cam 2 to rotate. Cam 2 is installed at the bottom of the lifting static beam. The static beam lifting cylinder drives the lifting static beam to rise and fall through cam 2.

2. The intermediate frequency furnace front step feeding device according to claim 1 is characterized in that: The movable beam lifting cylinder is provided with two groups relatively to each other. The rear part of the movable beam lifting cylinder is rotatably connected to the cylinder seat one through a pin shaft. The cylinder seat one is installed on the frame. The cylinder rod of the movable beam lifting cylinder is rotatably connected to the rotating block one through a pin shaft. The rotating block one is fixedly connected to the middle part of the rotating shaft one. The rotating shaft one is rotatably installed on the frame through two bearing seats one.

3. The intermediate frequency furnace front step feeding device according to claim 2 is characterized in that: The other side of the rotating block 1 is connected to the connecting rod 1 through a pin shaft, and the other end of the connecting rod 1 is connected to the rotating block 1 on the other side through a pin shaft. The movable beam lifting cylinder drives the two rotating shafts 1 on the same side to rotate simultaneously and synchronously through the connecting rod 1.

4. The intermediate frequency furnace front step feeding device according to claim 2, characterized in that: A cam is installed at one end of the rotating shaft, and the moving beam stepping mechanism is also provided with a slide and a guide rail. The inner side of the lower part of the slide slides in contact with the cam, and the cam rotates to lift or lower the lifting stepping moving beam. The upper part of the slide slides and connects to the guide rail, and the guide rail is installed at the bottom of the lifting stepping moving beam. The middle part of the lifting stepping moving beam is connected to the cylinder rod of the stepping cylinder, and the cylinder body of the stepping cylinder is installed on the slide through a bracket.

5. The intermediate frequency furnace front step feeding device according to claim 1, characterized in that: A leaf spring bracket is installed on both sides of the lifting step moving beam close to the moving beam lifting cylinder, and an insulating support body is installed on the upper part of the leaf spring bracket.

6. The intermediate frequency furnace front step feeding device according to claim 2, characterized in that: The static beam lifting mechanism adopts the same structure as the dynamic beam lifting mechanism. Two groups of static beam lifting cylinders are arranged opposite to each other. The rear part of the static beam lifting cylinder is connected to the cylinder seat 2 through a pin shaft. The cylinder seat 2 is installed on the frame. The cylinder rod of the static beam lifting cylinder is connected to the rotating block 2 through a pin shaft. The rotating block 2 is fixedly connected to the middle part of the rotating shaft 2. The rotating shaft 2 is rotatably installed on the frame through two bearing seats 2.

7. The intermediate frequency furnace front step feeding device according to claim 6, characterized in that: The other side of the rotating block 2 is connected to the connecting rod 2 through a pin shaft, and the other end of the connecting rod 2 is connected to the rotating block 2 on the other side through a pin shaft. The static beam lifting cylinder simultaneously drives the two rotating shafts 2 on the same side to rotate through the connecting rod 2. A cam 2 is installed at one end of the rotating shaft 2. The cam 2 slides in contact with the inner side of the mounting seat. The mounting seat is installed at the bottom of the lifting static beam. The cam 2 rotates to lift or lower the lifting static beam.

8. The intermediate frequency furnace front step feeding device according to claim 1, characterized in that: Two leaf spring brackets are installed on both sides of the lifting static beam close to the static beam lifting cylinder, and two insulating support bodies are installed on the upper part of the two leaf spring brackets.

9. The intermediate frequency furnace front step feeding device according to claim 2, characterized in that: The frame is installed on one side of the medium frequency furnace.

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