CN209798069U - Food cylinder surface hot spraying system - Google Patents

Abstract

The utility model discloses a hot spraying system in food cylinder surface, it sets up in one side of rotary drum, the system includes running gear, spray gun and sweeps the device, spray gun with sweep the device set up in running gear is last, running gear drives spray gun with sweep the device along make reciprocating motion on the rotary drum length direction, sweep the device and be in what form on the rotary drum sweeps the region and is located around the outside of spray gun spraying region, be used for doing the spraying region of spray gun provides to sweep the purification in advance. The utility model provides a sweep the device and provide a fine dust proof environment for the spraying region of spray gun, reach the purpose that sweeps the spraying on limit of rotary drum surface bottom, thoroughly cleared up clean spraying surface before having reached the spraying, do not remain debris such as dust, silk material oxide, improve the bonding strength between spraying layer and the bottom, ensure the quality on food cylinder spraying layer.

Description

Food cylinder surface hot spraying system

Technical Field

The utility model belongs to the technical field of cylinder surface thermal spraying, concretely relates to food cylinder surface thermal spraying system mainly applies to debris such as dust, silk material oxide that thoroughly clear up the spraying surface among the food cylinder surface hot spraying process, makes and does not have debris between spraying layer and the bottom, and the bonding strength on guarantee spraying layer obtains high-quality spraying layer.

Background

The thermal spraying technology is a method that a thermal source is utilized to heat a spraying material to a molten or semi-molten state, and the spraying material is sprayed and deposited on the surface of a pretreated substrate at a certain speed to form a coating. The hot spraying technology is used for manufacturing a special working surface on the surface of a common material, so that the working surface has multiple functions of corrosion resistance, wear resistance, friction reduction, high temperature resistance, oxidation resistance, heat insulation, electric conduction, microwave radiation resistance and the like, and the purposes of saving materials and energy are achieved. At present, in the process of hot spraying on the surface of a roller, impurities such as residual dust, wire oxides and the like on the sprayed surface can cause the sprayed layer to be combined with a bottom layer to form flaws, so that the bonding strength of the sprayed layer is reduced, and the sprayed layer is easy to crack and damage in the long-term running process of a food roller, thereby affecting the drying quality of the roller and causing the instability of the quality of a dried finished product.

SUMMERY OF THE UTILITY MODEL

Therefore, in order to improve the bonding strength between the spray coating and the bottom layer and avoid the quality problems of cracking and damage of the spray coating and the like in the using process, a three-tube blowing device is adopted to thoroughly clean impurities such as dust, wire oxides and the like on the spray coating surface, the bonding strength of the spray coating is improved, and a high-quality spray coating is obtained; therefore, the utility model provides a hot spraying system of food cylinder surface.

The technical scheme adopted is as follows:

The utility model provides a food cylinder surface hot spraying system, its sets up in one side of rotatory cylinder, the system includes running gear, spray gun and sweeps the device, spray gun and sweep the device set up in running gear is last, running gear drive spray gun and sweep the device along make reciprocating motion in the length direction of rotatory cylinder, sweep the device and be in on the rotatory cylinder sweep the region and be located around the regional outside of spraying of spray gun for the spraying region of spray gun provides sweeps in advance and purifies.

Preferably, the purging device comprises a left purging gun, a right purging gun and an upper purging gun, wherein the left purging gun and the right purging gun are positioned on two sides of the spraying gun, the upper purging gun is positioned above the spraying gun, and purging and purifying are respectively performed on two sides of the spraying gun and an area above the spraying gun.

Further preferably, the left purging gun and the right purging gun respectively form purging angles of 40-50 degrees with the surface of the rotary drum, and the upper purging gun forms purging elevation angles of 40-50 degrees with the horizontal plane.

The left purging gun and the right purging gun are symmetrically arranged on two sides of the spraying gun respectively.

The distance between the boundary of the blowing area of the left blowing gun and the boundary of the blowing area of the right blowing gun and the boundary of the spraying area of the spraying gun is 18-22 mm; the interval between the boundary of the blowing area of the upper blowing gun and the boundary of the spraying area of the spraying gun is 8-12 mm.

The travelling device is a precision machine tool, the spraying gun and the purging device are arranged on the same support, and the support is arranged on a slide way of the precision machine tool and moves along the slide way in a reciprocating mode.

The utility model discloses technical scheme has following advantage:

A. The utility model discloses a set up running gear and can make reciprocating motion's spraying gun and sweep the device on running gear in one side of rotatory cylinder, the spraying gun can form the integral structure with sweeping the device, wholly do reciprocating motion on running gear, sweep the device and provide a fine dust proof environment for the spraying region of spraying gun, reach the purpose that the spraying was on the limit swept rotatory cylinder surface, thoroughly clean up spraying surface before having reached the spraying, dust does not remain, debris such as silk material oxide, improve the bonding strength between spraying layer and the bottom, ensure the quality on food cylinder spraying layer.

B. The utility model has the advantages that the left side and the right side of the spraying gun are respectively provided with the purging gun, the upper purging gun is arranged above the spraying gun, when the spraying gun moves left and right, the spraying efficiency is improved by adopting the continuous self-propelled spraying mode of firstly purging and then spraying the spraying surface of the roller; the dust produced in the spraying process can fall on the rotary roller again, and the dust falling above the rotary roller is further blown off, so that the dust-containing component is completely avoided in the spraying layer, the bonding strength between the spraying layer and the surface of the rotary roller is greatly improved, and the service life of the rotary roller is prolonged.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a front view of a food drum surface thermal spraying and purging device provided by the present invention;

FIG. 2 is a schematic side view of the structure of FIG. 1;

Fig. 3 is a schematic top view of the structure shown in fig. 1.

In the figure:

1-rotating the drum; 2-a walking device; 3-a spray gun; 4-purging device, 41-left purging gun, 42-right purging gun, 43-upper purging gun; 5-support; 6-a slide way.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, 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 work belong to the protection scope of the present invention.

As shown in fig. 1, fig. 2 and fig. 3, the utility model provides a hot spraying system of food cylinder surface, it sets up in one side of rotary drum 1, including running gear 2, spray gun 3 and sweep device 4, spray gun 3 sets up on running gear 2 with sweeping device 4, and running gear 2 drives spray gun 3 and sweeps device 4 and makes reciprocating motion along rotary drum 1 length direction, sweeps device 4 on rotary drum 1 sweep the regional spraying region outside that is located spray gun 3 around for the spraying region of spray gun 3 provides sweeps in advance and purifies. The utility model discloses to sweep that device 4 formed sweeps around the regional outside that is located the spraying region, drive the spraying rifle and sweep device 4 when removing when running gear, sweep the spraying region in advance and purify, carry out the spraying on working layer again, realized the continuity of operation of limit spraying of sweeping, avoided produced dust in the spraying process to fall once more in the region of treating the spraying to make the spraying layer combine more firmly on the cylinder surface, improve bonding performance, increase of service life.

The utility model discloses the preferred device 4 that sweeps rifle 41, the right side including the left side that is located spray gun 3 both sides sweep rifle 42 and be located spray gun 3 top sweep rifle 43, sweep the purification to spray gun 3's both sides and top region respectively.

before spraying the surface of a food roller, roughly turning the surface of the roller, wherein the thread pitch of a turning tool is not more than 0.5mm, then roughening the surface of the roller by using a 99.99% pure nickel plate on the surface of the roller which is processed cleanly, uniformly distributing pure nickel particles on the surface of the roller, and spraying a bonding bottom layer with the thickness of 0.1mm by using a special bottoming nickel-aluminum alloy wire. After the above processes are completed, the working layer is sprayed.

The walking device adopted during spraying is preferably a professional spraying precision machine tool which does reciprocating linear motion, the food roller can rotate anticlockwise, and the rotating direction of the food roller is that the food roller rotates towards the upper part on the spraying side. When the spray gun 3 sprays from left to right, the right blowing gun 42 and the upper blowing gun 43 work, before the spray gun 3 sprays, the right blowing gun 42 blows the spraying surface in advance, impurities such as dust on the spraying surface are cleaned up, the upper blowing gun 43 blows upwards for 45 degrees, the dust is prevented from falling back to the spraying surface, the spraying surface is further cleaned up, and a spraying layer is ensured to cover the clean spraying surface. When the spraying gun 3 sprays from right to left, the left blowing gun 41 and the upper blowing gun 43 work, the left blowing gun 41 blows the spraying surface in advance to clean up dust and other impurities on the spraying surface, the upper blowing gun 43 blows upwards for 45 degrees to prevent the dust from falling back to the spraying surface, the spraying surface is further cleaned up, and the spraying layer is ensured to cover the clean spraying surface. Adopt this set of three pipe to sweep the device and can thoroughly clear up debris such as dust on the spraying layer surface, improve the bonding strength on spraying layer, just can obtain high-quality cylinder surface spraying layer through subsequent abrasive machining.

The blowing angles formed by the left blowing gun 41 and the right blowing gun 42 and the surface of the rotary drum 1 are 40-50 degrees, preferably, the left blowing gun 41 and the right blowing gun 42 are symmetrically arranged at the positions of two sides of the spraying gun 3 respectively, the utility model discloses preferred is 45 degrees, the left blowing gun 41 keeps the dust blowing towards the left side all the time, and the right blowing gun 42 keeps the dust blowing towards the right side all the time; the sweeping elevation angle formed by the upper sweeping gun 43 and the horizontal plane is 40-50 degrees, preferably the upward sweeping angle is 45 degrees, and dust is kept to be swept upward all the time.

In addition, the distance between the boundary of the blowing area of the left blowing gun 41 and the boundary of the blowing area of the right blowing gun 42 and the boundary of the spraying area of the spraying gun 3 is 18-22 mm, preferably 20mm, and the distance between the left blowing gun 41 and the spraying gun 3 and the distance between the right blowing gun 42 and the spraying gun 3 are 120 mm; the distance between the boundary of the blowing area of the upper blowing gun 43 and the boundary of the spraying area of the spraying gun 3 is 8-12 mm, and preferably 10 mm.

the traveling device 2 shown in fig. 1 and 3 is a precision machine tool, which is a conventional technique, and the coating gun 3 and the purge device 4 are provided on the same support 5, and the support 5 is provided on a slide 6 of the precision machine tool and reciprocates along the slide 6. The air sources of the spraying gun, the left blowing gun and the right blowing gun are 0.8MPa of dry high-pressure air which is treated by an air compressor, a drier, a precision filter and other equipment.

The utility model discloses an efficiency lies in thoroughly clean up spraying surface before the spraying, does not remain debris such as dust, silk material oxide, improves the bonding strength between spraying layer and the bottom, ensures the quality on food cylinder spraying layer.

the spraying gun and the left and right blowing guns are all the prior art, and the structures of the spraying gun and the left and right blowing guns are not described in detail.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims (6)

1. The utility model provides a food cylinder surface hot spraying system, its sets up in one side of rotatory cylinder (1), its characterized in that, the system includes running gear (2), spray gun (3) and sweeps device (4), spray gun (3) and sweep device (4) set up in on running gear (2), running gear (2) drive spray gun (3) and sweep device (4) along make reciprocating motion on the length direction of rotatory cylinder (1), sweep the device (4) and be located around the outside in spray gun (3) spraying region formed on rotatory cylinder (1), be used for the spraying region of spray gun (3) provides sweeps in advance and purifies.

2. The food drum surface thermal spraying system according to claim 1, characterized in that the purging device (4) comprises a left purging gun (41), a right purging gun (42) and an upper purging gun (43) above the spraying gun (3) on both sides of the spraying gun (3) for purging the areas above and on both sides of the spraying gun (3), respectively.

3. the food drum surface thermal spraying system according to claim 2, characterized in that the left purge gun (41) and the right purge gun (42) respectively form purge angles of 40-50 ° with the surface of the rotating drum (1), and the upper purge gun (43) forms purge elevation angles of 40-50 ° with the horizontal plane.

4. The food cylinder surface thermal spray system according to claim 3, wherein the left purge gun (41) and the right purge gun (42) are symmetrically arranged at both side positions of the spray gun (3), respectively.

5. The food cylinder surface thermal spray system according to claim 3, characterized in that the distance between the boundary of the purge zone of the left purge gun (41) and the boundary of the purge zone of the right purge gun (42) and the boundary of the spray zone of the spray gun (3) is 18-22 mm; the distance between the sweeping area boundary of the upper sweeping gun (43) and the spraying area boundary of the spraying gun (3) is 8-12 mm.

6. The food drum surface thermal spraying system according to any one of claims 1 to 5, characterized in that the running means (2) is a precision machine, the spraying gun (3) and the purging means (4) are arranged on the same support (5), and the support (5) is arranged on a slide (6) of the precision machine and moves back and forth along the slide (6).