CN209303356U - The blowning installation that descales for hot pin material - Google Patents

Abstract

The utility model belongs to the field of crankshaft manufacturing equipment, in particular to a descaling air blowing device for hot bar stock, which is characterized in that it includes a reciprocating translational drive device, a nozzle, and a Y-shaped support frame fixed on a workbench; There are air chambers, main air pipes and bronchi in the nozzle, and a circular door opening, which is oriented in the same direction as the nozzle when it is working. There are multiple air injection holes on the inner wall of the circular door opening. The air injection holes and the air cavity Communication, one end of the bronchus communicates with the main air pipe, and the other end communicates with the air cavity; when working, the reciprocating translation drive device drives the nozzle to reciprocate, and the reciprocating motion stroke is not less than the length of the hot rod material, and the relatively hot rod material runs through the circular In the door opening, the axial direction of the hot bar material is parallel to the direction of movement of the nozzle, and the high-pressure air source delivers gas into the nozzle, and the gas is blown from the gas injection hole on the wall of the circular door hole to the surface of the hot rod material in the circular door opening. The utility model has high efficiency. , low cost and good effect.

Description

Descaling blowing device for hot bars

technical field

The utility model belongs to the field of crankshaft manufacturing equipment, in particular to an air blowing device for descaling hot bars.

Background technique

In the traditional crankshaft hot die forging production line, after the crankshaft rough bar is heated at high temperature, high-pressure water descaling equipment is generally used to remove the scale existing on the surface of the hot bar. The high-pressure water descaling equipment includes a conveyor chain and a drive shaft , nozzles and other mechanisms, the existing problems are that dirt is generated during the high-pressure water cycle, the nozzles are easy to block, the effect of descaling is gradually reduced, and the water in the working area is easy to splash everywhere, and the ground is easy to accumulate water, which does not make use of the cleanliness of the site.

Utility model content

The purpose of the utility model is to provide a descaling air blowing device for hot bars, which is used to overcome the deficiencies of the prior art. The device uses high-pressure air to blow and remove the scale on the surface of high-temperature bars in a long-term and stable manner.

The technical scheme that realizes the utility model purpose is as follows:

A descaling air blowing device for hot rods, which is different from the prior art in that it includes a reciprocating translational drive device fixed on the workbench, a nozzle connected to the reciprocating translational drive device, a telescopic pipe, fixed on the working The Y-shaped support frame on the stage,

The inside of the nozzle is provided with an air cavity, a main air pipe and a bronchus connected with the air inlet of the nozzle. One end of the bronchus communicates with the main air pipe, and the other end communicates with the air cavity. The direction of the nozzle is consistent with the movement direction of the nozzle when it is working. The size of the circular door opening is based on the fact that the hot rods placed on the Y-shaped support frame can pass through it during work. There are multiple air injection holes on the inner wall of the circular door opening. The air injection hole communicates with the air cavity in the nozzle; the reciprocating motion stroke of the nozzle is not less than the length of the hot bar when the nozzle is working;

The telescopic pipe is connected to the nozzle air inlet;

There are no less than two Y-shaped support frames, and they are all arranged in the movement direction of the nozzle when it is working;

When working, the front and rear ends of the hot rod are in the movement stroke of the nozzle and placed on the Y-shaped support frame. The axial direction of the hot rod is consistent with the movement direction of the nozzle, and the reciprocating translation drive device drives the nozzle to reciprocate. In the circular door opening, the high-pressure air source sends the gas into the nozzle through the retractable pipeline. The gas enters the air cavity through the main air pipe and the bronchus in the nozzle, and then blows from the air injection hole on the wall of the circular door hole to the surface of the hot bar in the circular door hole. .

Further, the air jet holes are uniformly arranged on the inner wall of the circular door opening.

Further, the air jet holes are arranged in groups of 3-5 in the direction of the circular door opening, and are arranged in groups at intervals of 10 degrees or 15 degrees along the circumferential direction of the circular door opening and distributed on the inner wall of the circular door opening.

Further, the diameter of the jet hole is 1-2mm.

Further, the pressure of the high-pressure gas ejected from the gas injection hole is 6-8Mpa.

Further, there are three bronchi, one of which communicates with the air cavity in the direction of the top of the circular portal, and the other two communicates with the air cavity in the direction of both sides of the circular portal.

Further, the inner diameter of the main trachea is 1.3-1.7 times the inner diameter of the bronchi.

Further, during work, the contact size between the Y-shaped support frame and the hot bar is 3-5mm in the axial direction of the hot bar.

Further, the reciprocating translation driving device includes a cylinder, a straight guide rail, a sliding seat installed on the straight guide rail, and a nozzle connection plate connected to the sliding seat. The cylinder and the straight guide rail are fixed on the workbench, and the movement direction of the piston rod of the cylinder Consistent with the straight guide rail, the piston rod of the cylinder is connected with the sliding seat, and the nozzle connecting plate is connected with the nozzle.

In this technical solution, the cylinder drives the nozzle to reciprocate along the direction of the guide rail, and at the same time, the nozzle sprays out high-pressure air to blow off the scale on the high-temperature bar. The advantages of the utility model are: 1. Aiming at the characteristics that high-temperature bars are easy to produce oxide skin in a short time, it is faster to remove oxide skin by blowing air than by high-pressure water, thus shortening the transfer process time and effectively preventing recurrence Oxide skin, thereby improving the surface quality of crankshaft forgings. 2. The blowing nozzle is not easy to block, which saves maintenance and cleaning time, thereby improving production efficiency. 3. This technical solution uses high-pressure air instead of high-pressure water, which has a relatively simpler structure, saves water resources, and improves the working environment.

Description of drawings

Fig. 1 is the structural representation of the embodiment of the utility model;

Figure 2 is a schematic diagram of the positional relationship between the nozzle and the hot bar and the internal structure of the nozzle during operation.

In the figure, 1. Workbench; 2. Nozzle; 3. Reciprocating translation drive device; 4. Y-shaped support frame; Cavity; 204. jet hole; 205. circular door opening; 301. cylinder; 3011. piston rod; 302. straight guide rail; 303. sliding seat;

Detailed ways

The utility model is described in detail below in conjunction with the accompanying drawings of the embodiment.

With reference to Fig. 1, a kind of descaling blowing device that is used for hot bar stock, comprises the reciprocating translation driving device 3 that is fixed on the workbench 1, the nozzle 2 that links to each other with the reciprocating translation driving device, telescopic pipeline 5, is fixed on Y-shaped support frame 4 on the workbench,

Referring to Figures 1 and 2, the nozzle 2 is provided with an air chamber 203, a main air pipe 201 communicating with the air inlet of the nozzle, and three bronchi 202, one end of the bronchus 202 communicates with the main air pipe 201, and the other end communicates with the air chamber 203 , the spray head 2 is also provided with a circular door opening 205, the orientation of the circular door opening 205 is consistent with the direction of movement of the shower head 2 when it is working, and the size of the circular door opening 205 is based on the hot bar material 6 placed on the Y-shaped support frame 4 during work. As long as it can run through it, a plurality of air injection holes 204 are provided on the inner wall of the circular door opening 205, and the air injection holes 204 communicate with the air cavity 203 in the nozzle 2; the reciprocating stroke of the nozzle 2 is not less than the length of the hot rod 6, To ensure that the nozzle 2 covers the entire hot bar in the axial direction during work, the telescopic pipe 5 is connected to the air inlet of the nozzle, and the use of a telescopic pipe can ensure that the nozzle 2 can continuously supply air to it when it is moving;

The reciprocating translation driving device 3 includes a cylinder 301, a straight guide rail 302, a sliding seat 303 installed on the straight guide rail 302, a nozzle connecting plate 304 connected to the sliding seat 303, and the cylinder 301 and the straight guide rail 302 are fixed on the workbench 1. The movement direction of the piston rod 3011 of the cylinder is consistent with the straight guide rail 302, the piston rod 3011 of the cylinder is connected with the sliding seat 303, and the nozzle connecting plate 304 is connected with the nozzle 2;

Air jet holes 204 are arranged in a group of 3-5 in the direction of the circular door opening, and a group is arranged at intervals of 10 degrees or 15 degrees along the circumference of the circular door opening and distributed on the inner wall of the circular door opening 205. The number of air jet holes 204 is appropriate The control and reasonable deployment on the inner wall of the circular door opening 205 not only ensure the air blowing intensity of the air jet hole during work, but also increase the surface area of the hot bar to receive the air jet directly, thereby improving the oxide scale removal effect.

One of the three bronchi 202 communicates with the air chamber 203 in the direction of the top of the circular door opening 205, and the other two communicate with the air chamber 203 in the direction of the two sides 205 of the circular door opening 205. The inner diameter of the main air pipe 201 is 1.3 of the inner diameter of the bronchus 202 -1.7 times, the reasonable setting of the caliber of the bronchus and the position of the communication port with the air cavity 203 is conducive to obtaining high-pressure gas with the same pressure for all the jet holes 204 during work, improving the efficiency of removing oxide scales,

There are two Y-shaped support frames 4, and they are all arranged on the movement direction of the nozzle when it is working;

The jet hole 204 has a diameter of 1-2mm,

The jet hole 204 ejects high-pressure air with a pressure of 6-8Mpa,

When working, the contact size between the Y-shaped support frame 4 and the hot rod 6 in the axial direction of the hot rod 6 is 3-5mm, and reducing the contact area between the hot rod 6 and the support frame is conducive to improving the direct acceptance of the hot rod. surface area to improve hot bar scale removal.

When working, the front and rear ends of the hot rod 6 are within the movement stroke of the nozzle 2 and placed on the Y-shaped support frame 4. The axial direction of the hot rod 6 is consistent with the movement direction of the nozzle 2. The cylinder 301 drives the nozzle 2 to reciprocate, relatively geothermal The bar material 6 runs through the circular door opening 205, and the high-pressure air source delivers gas to the nozzle 2 through the retractable pipe 5. The gas enters the air cavity 203 through the main air pipe 201 and the bronchus 202 in the nozzle, and then blows into the circular door opening from the air injection hole 204. 6 surfaces of the hot bar.

Claims (9)

1. a kind of blowning installation that descales for hot pin material, it is characterized in that, including fixed alternating translational on the table Driving device, the spray head being connected with alternating translational driving device, flexible pipeline, fixed Y shape support frame on the table,

The main trachea-bronchial epithelial cell for being equipped with air cavity inside the spray head, being connected to spray head air inlet, described bronchus one end and main gas Pipe communicates, and the other end is communicated with air cavity, and the spray head is additionally provided with round door opening, and the direction of round door opening moves when working with spray head Direction is consistent, and the size of round door opening, which is subject to the hot pin material being shelved on Y shape support frame when working, can pass through wherein, in circle Shape door opening inner wall is equipped with multiple fumaroles, and the fumarole is communicated with the air cavity in spray head；Spray head reciprocating stroke when work Not less than the length of hot pin material；

The flexible pipeline connects spray head air inlet；

The Y shape support frame is no less than two, and is all disposed in direction of motion when spray head work；

When work, all in spray head movement travel and being held on Y shape support frame, hot pin material is axial with spray for hot pin material front and back end The head direction of motion is consistent, and alternating translational driving device drives spray head reciprocating, and relatively hot pin material passes through round door opening, high Press air-source by flexible pipeline conveying gas into spray head, gas enters air cavity through main trachea-bronchial epithelial cell in spray head, then from Fumarole on round door opening inner wall is blown on the hot billet surface in round door opening.

2. the blowning installation that descales according to claim 1 for hot pin material, it is characterized in that, the fumarole is in circle Shape door opening inner wall is uniformly arranged.

3. the blowning installation that descales according to claim 1 for hot pin material, it is characterized in that, the fumarole is in circle Shape door opening is one group towards setting up 3-5, and the circumference along round door opening is distributed in to dispose one group every 10 degree or 15 degree On round door opening inner wall.

4. the blowning installation that descales according to claim 1 for hot pin material, it is characterized in that, the jet bore dia 1-2mm。

5. the blowning installation that descales according to claim 1 for hot pin material, it is characterized in that, the fumarole sprays High pressure atmospheric pressure is 6-8Mpa.

6. the blowning installation that descales according to claim 1 for hot pin material, it is characterized in that, the bronchus number is 3, one of them is connected in round door opening top-direction with air cavity, and another two connects on the direction of round door opening two sides with air cavity It is logical.

7. the blowning installation that descales according to claim 6 for hot pin material, it is characterized in that, the main tracheal diameter It is 1.3-1.7 times of bronchus internal diameter.

8. the blowning installation that descales according to claim 1 for hot pin material, it is characterized in that, when work, in hot pin The axial upper Y shape support frame of material and hot pin material contact size are 3-5mm.

9. the blowning installation that descales according to claim 1-8 for hot pin material, it is characterized in that, it is described past Multiple translation driving device includes cylinder, straight guide rail, the sliding seat being mounted on straight guide rail, the spray head being connected with sliding seat company Fishplate bar, cylinder peace straight guide is fixed on the table, and the direction of motion of cylinder piston rod is consistent with straight guide rail, cylinder piston Bar is connected with sliding seat, and spray head connecting plate connects spray head.