CN209830218U - Casting roll spraying device and casting and rolling machine - Google Patents

Abstract

The utility model provides a cast roll spraying device and cast rolling machine improves cast roll circumference surface spraying homogeneity to reduction in production cost. The casting roller spraying device comprises a rack, a spray gun, a motor, a screw rod and a guide rod, wherein the screw rod and the guide rod are axially parallel, and the motor and the guide rod are fixedly arranged on the rack; one end of the screw rod is connected to an output shaft of the motor, a sliding block is spirally matched and installed on the screw rod, and the sliding block is in sliding fit with the guide rod; the spray gun is fixedly arranged on the slide block and comprises a mixed air outlet section and a flow dividing air inlet section, and the flow dividing air inlet section comprises a gas collecting pipe and two air inlet short pipes; the front ends of the two short gas inlet pipes are converged and communicated on the rear end of the gas collecting pipe; the rear end of one air inlet short pipe is connected to one air storage tank, and the rear end of the other air inlet short pipe is connected to the other air storage tank. The utility model relates to a cast roll spraying device, the spray gun along the reciprocating linear motion of screw rod axial, make the spraying even and can let in the combustible gas of two kinds of differences, do benefit to reduction in production cost.

Description

Casting roll spraying device and casting and rolling machine

Technical Field

The utility model relates to a cast roll spraying device's of casting and rolling machine institutional advancement and have this spraying device's casting and rolling machine.

Background

Casting and rolling are a new process for directly casting and rolling metal melt into semi-finished blanks or finished products. The process is characterized in that the crystallizer is two rotary casting rolls with water cooling systems, the two rotary casting rolls are arranged in parallel and opposite to each other, and the melt finishes two processes of solidification and hot rolling between roll gaps and within a short time (2-3 s).

In the casting and rolling production process, at least the circumferential surface of the casting roller in the casting roller and the semi-finished blank or the finished plate is required to be sprayed to form a layer of soot, so that the casting roller is heated on one hand, and the circumferential surface of the casting roller is sprayed with a layer of soot on the other hand, so that the lubricating effect can be achieved, and the plate sticking phenomenon between the casting roller and the plate in the production process can be prevented. Specifically, combustible gas is sprayed out by a spray gun and ignited, and soot is generated by incomplete combustion of the combustible gas and sprayed on the circumferential surface of the casting roll.

In the prior art, a spray gun used for spraying a casting roller only has one spray channel, only one combustible gas can be sprayed, the incomplete combustion performance of liquefied gas is good, the amount of soot generated by combustion of liquefied gas in each cube is more than that of soot generated by other combustible gases, the combustible gas used for spraying is liquefied gas in the past, however, the price of the liquefied gas is higher, and each cube is about 7 yuan, so that the casting and rolling production cost is high. In addition, since the casting rolls have a certain length, in order to spray the circumferential surfaces of the casting rolls, a spraying device is generally disposed at each of the casting rolls near both ends, and the spraying device includes a spray gun and a liquefied gas tank for supplying gas to the spray gun through a pipeline, the spray gun is fixed, and the circumferential surfaces of the entire casting rolls are covered as much as possible by extending flames at both ends and flying ash, so that the surface spraying of the casting rolls is not uniform, and the equipment cost is also increased.

SUMMERY OF THE UTILITY MODEL

The utility model provides a cast roll spraying device and cast rolling machine improves cast roll circumference surface spraying homogeneity to reduction in production cost.

In order to solve the technical problem, the utility model adopts the following technical scheme to realize: a casting roller spraying device comprises a frame, a spray gun, a motor, a screw rod and at least two guide rods arranged in parallel, wherein the screw rod is axially parallel to the guide rods, and the motor and the guide rods are fixedly arranged on the frame; the screw rod is rotatably arranged on the rack, one end of the screw rod is connected to an output shaft of the motor, a sliding block is spirally matched and arranged on the screw rod, and the sliding block is sleeved on the guide rod and is in sliding fit with the guide rod; the spray gun is fixedly arranged on the sliding block and comprises a mixed gas outlet section at the front part and a split gas inlet section at the rear part, the mixed gas outlet section is communicated with the split gas inlet section, the split gas inlet section comprises a gas collecting pipe and two short gas inlet pipes, and the front end of the gas collecting pipe is communicated with the rear end of the mixed gas outlet section; the front ends of the two short air inlet pipes are converged and communicated on the rear end of the gas collecting pipe, and the converging part of the front ends of the two short air inlet pipes is provided with a manual regulating valve for regulating the air inlet flow in the two short air inlet pipes; the rear end of one air inlet short pipe is connected to one air storage tank through a hose, and the rear end of the other air inlet short pipe is connected to the other air storage tank through a hose.

And a manual regulating valve for regulating the air outlet flow is arranged on the mixed air outlet section.

The number of the guide rods is two, and the guide rods and the screw rods are located on the same horizontal plane.

The two ends of the screw rod are provided with limiting blocks, and limiting switches are arranged on the limiting blocks.

The length of the screw is at least equal to the length of the casting roll.

The utility model also provides a casting and rolling machine, including two rotatory casting rolls of parallel and relative setting from top to bottom, still include with two the casting roll spraying device that rotatory casting roll one-to-one set up, casting roll spraying device is foretell casting roll spraying device, the axial of screw rod with the axial direction parallel of rotatory casting roll, the front end air outlet orientation of spray gun the circumference side of rotatory casting roll.

Compared with the prior art, the utility model has the advantages of it is following and positive effect: the utility model relates to a casting roll spraying device, spray gun set firmly on the slider, slider and screw rod spiral cooperation and establish sliding fit with the guide bar cover, then the motor drives the axial linear motion that can drive the slider along the screw rod when the screw rod rotates, realizes the reciprocal linear motion of slider along the screw rod axial through the positive and negative rotation of motor, and then drives the axial reciprocal linear motion of spray gun along the screw rod, then when the utility model discloses casting roll spraying device sets up on the casting and rolling machine, the axial reciprocal linear motion of spray gun along the screw rod to evenly spray casting roll circumferential surface; simultaneously, the rear portion of spray gun is for shunting the inlet end, it contains a collector and two inlet stub pipes, the rear end of one of them inlet stub pipe passes through hose connection on a gas holder, the rear end of another inlet stub pipe passes through hose connection on another gas holder, then can let in two kinds of different combustible gases, for example one of them lets in liquefied gas, another lets in less natural gas, under the heating effect of guaranteeing to burn, liquefied gas burning production ash volume is big, guarantee to the lubricated effect on casting roll circumference surface, natural gas unit price is far lower than liquefied gas, do benefit to reduction in production cost.

Drawings

FIG. 1 is a schematic structural view of a casting roll spraying device according to the present invention;

FIG. 2 is a schematic structural view of a spray gun of the casting roll spraying device of the present invention;

fig. 3 is a schematic structural view of the relative position relationship between the casting roll spraying device and the casting roll of the present invention on the casting and rolling machine.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 and fig. 2, the casting roll spraying apparatus 100 of the embodiment includes a frame 110, a spray gun 120, a motor 130, a screw 140, and at least two guide rods 150 arranged in parallel, wherein the screw 140 and the guide rods 150 are axially parallel, and the motor 130 and the guide rods 150 are fixedly arranged on the frame 110; the screw 140 is rotatably mounted on the frame 110, one end of the screw 140 is connected to an output shaft of the motor 130, so that the screw 140 is in transmission connection with the motor 130, the screw 140 is spirally fitted with the slider 160, and the slider 160 is simultaneously sleeved on the guide rod 150 and is in sliding fit with the guide rod 150; the spray gun 120 is fixed on the slide block 160, and as shown in fig. 2, the spray gun 120 includes a front mixed gas outlet section 121 and a rear flow dividing gas inlet section 122, the mixed gas outlet section 121 has a front gas outlet 1211, and the mixed gas outlet section 121 is communicated with the flow dividing gas inlet section 122; the shunting gas inlet section 122 comprises a gas collecting pipe 1221 and two gas inlet short pipes 1222, and the front end of the gas collecting pipe 1221 is communicated with the rear end of the mixed gas outlet section 121; the front ends of the two air inlet short pipes 1222 are converged and communicated on the rear end of the air collecting pipe 1221, so that the shunting air inlet section 122 is in an approximate tee shape, and the convergence position of the front ends of the two air inlet short pipes 1222 is provided with a manual adjusting valve 123 for adjusting the air inlet flow in the two air inlet short pipes 1222; one of the short intake pipes 1222 is connected at its rear end to one of the air tanks 180 by a hose 170, and the other short intake pipe 1222 is connected at its rear end to the other air tank 190 by a hose 170.

Specifically, mounting holes are formed in the positions, corresponding to the two ends of the screw 140, of the frame 110, bearings are mounted in the mounting holes, the two ends of the screw 140 are correspondingly matched with the bearings to achieve rotatable mounting of the screw 140 on the frame 110, a spline inner hole can be formed in one end of the screw 140, an output shaft of the motor 130 is provided with a spline end, transmission connection between the screw 140 and the motor 130 is achieved through matching of the spline inner hole and the spline end, the motor 130 can drive the screw 140 to rotate, the motor 130 selects a forward and reverse rotation motor to achieve forward and reverse rotation of the screw, further linear reciprocating motion of the sliding block 160 and the spray gun 120 along the axial direction of the screw 140 is achieved, and casting rolls are uniformly and efficiently; the spray gun 120 can be fixed on the sliding block 160 in a binding manner, the mixed gas outlet section 121 of the spray gun 120 in this embodiment is equivalent to the front half part of the spray gun 120 in the prior art, different from the prior art, the rear half part of the spray gun 120 in this embodiment is a shunting gas inlet section 122, which includes a gas collecting pipe 1221 and two gas inlet short pipes 1222, i.e. two paths of gas inlet are provided, so that two different combustible gases can be introduced, as described above, liquefied gas is introduced into one gas inlet short pipe 1222, natural gas is introduced into the other gas inlet short pipe 1222, and the introduction amount of the two combustible gases is controlled by the manual regulating valve 123, the amount of the liquefied gas is greater than that of the natural gas, the cost of spraying gas is reduced on the basis of ensuring spraying heating and.

Further, a manual regulating valve, i.e. a manual regulating valve 124 in fig. 2, is also disposed on the mixed gas outlet section 121, and is used for regulating the gas outlet flow of the mixed gas outlet section 121, i.e. regulating the gas outlet amount of the spray gun 120, and further regulating the size of the flame of the ignited spray gun 120, so as to meet the use requirements of various casting conditions.

For cost consideration, the number of the guide rods 150 is two, and the guide rods 150 and the screw 140 are located on the same horizontal plane, that is, the axes of the guide rods 150 and the axis of the screw 140 are located on the same horizontal plane, preferably, the two guide rods 150 are symmetrically arranged with the axis of the screw 140 as a central line, so as to guide the sliding block 160 stably, so that the sliding block 160 and the spray gun 120 operate stably, and further ensure the uniformity of spraying.

In order to protect the slider 160 and the spray gun 120, the two ends of the screw 140 are provided with the limit blocks 141, and the limit switches are arranged on the limit blocks 141, so that the reciprocating motion of the slider 160 and the spray gun 120 is limited to prevent collision.

To ensure that the circumferential surfaces of the casting rolls are completely coated, the length of the screw 140 is at least as long as the casting rolls so that the travel of the slides 160 and the lances 120 covers the length of the casting rolls as much as possible so that the circumferential surfaces of the casting rolls are sufficiently coated.

This embodiment has still provided a casting and rolling machine, as shown in fig. 3, including two rotatory casting roll 200 of parallel and relative setting from top to bottom, still include the casting roll spraying device 100 that sets up with two rotatory casting roll 200 one-to-ones, casting roll spraying device 100 is located the finished product outlet side of rotatory casting roll 200, and its specific structure refers to the utility model discloses casting roll spraying device's embodiment and the description of attached 1 and fig. 2 are no longer repeated here, and other structural component of casting and rolling machine is with prior art, and omit other structural component here no longer redundantly and in fig. 3. The casting roll spraying device 100 is fixedly arranged on a main frame of a casting and rolling machine through a frame 110; the axial direction of the screw 140 of the casting roll spray coating device is parallel to the axial direction of the rotating casting roll 200, and the front end air outlet 1211 of the spray gun 120 faces the circumferential side surface of the rotating casting roll 200; the casting roll spray coating devices 100 corresponding to the upper rotating casting rolls 200 are located above the finished product exit side of the upper rotating casting rolls 200, and the casting roll spray coating devices 100 corresponding to the lower rotating casting rolls 200 are located below the finished product exit side of the lower rotating casting rolls 200, so as to avoid interference with the output of the finished products.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or that equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the present invention, which is claimed.

Claims (6)

1. The casting roll spraying device is characterized in that: the spray gun comprises a rack, a spray gun, a motor, a screw rod and at least two guide rods arranged in parallel, wherein the screw rod is parallel to the guide rods in the axial direction, and the motor and the guide rods are fixedly arranged on the rack; the screw rod is rotatably arranged on the rack, one end of the screw rod is connected to an output shaft of the motor, a sliding block is spirally matched and arranged on the screw rod, and the sliding block is sleeved on the guide rod and is in sliding fit with the guide rod; the spray gun is fixedly arranged on the sliding block and comprises a mixed air outlet section at the front part and a split air inlet section at the rear part, the mixed air outlet section is provided with a front-end air outlet and is communicated with the split air inlet section, the split air inlet section comprises a gas collecting pipe and two short air inlet pipes, and the front end of the gas collecting pipe is communicated with the rear end of the mixed air outlet section; the front ends of the two short air inlet pipes are converged and communicated on the rear end of the gas collecting pipe, and the converging part of the front ends of the two short air inlet pipes is provided with a manual regulating valve for regulating the air inlet flow in the two short air inlet pipes; the rear end of one air inlet short pipe is connected to one air storage tank through a hose, and the rear end of the other air inlet short pipe is connected to the other air storage tank through a hose.

2. The casting roll spray coating apparatus of claim 1, wherein: and a manual regulating valve for regulating the air outlet flow is arranged on the mixed air outlet section.

3. The casting roll spray coating apparatus of claim 1, wherein: the number of the guide rods is two, and the guide rods and the screw rods are located on the same horizontal plane.

4. The casting roll spray coating apparatus of claim 1, wherein: the two ends of the screw rod are provided with limiting blocks, and limiting switches are arranged on the limiting blocks.

5. The casting roll spray coating apparatus of claim 1, wherein: the length of the screw is at least equal to the length of the casting roll.

6. The utility model provides a casting and rolling machine, includes two rotatory casting rolls that parallel and relative setting from top to bottom, still include with two the casting roll spraying device that rotatory casting roll one-to-one set up, its characterized in that: the casting roll spraying apparatus as claimed in any one of claims 1 to 5, wherein an axial direction of the screw is parallel to an axial direction of the rotating casting roll, and a front end air outlet of the lance faces a circumferential side surface of the rotating casting roll.