Paint stripping groove and paint stripping equipment

Abstract

The utility model discloses a paint stripping groove and paint stripping equipment including the paint stripping groove, the paint stripping groove is used for removing a paint layer on the surface of a product, the paint stripping groove comprises a bottom plate and four side plates vertically connected with the bottom plate, the bottom plate and the four side plates form a groove-shaped container with an opening at the top, the paint stripping groove is filled with groove liquid, and the groove liquid is filled with paint. A product coated with a paint layer is soaked in the bath solution to remove the paint layer on the surface of the product, and the bottom plate and the side plates are made of 904L stainless steel. The paint stripping groove is easy to manufacture, and corrosion and leakage of groove liquid can be effectively prevented.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of paint stripping, and particularly relates to a paint stripping tank and paint stripping equipment comprising the paint stripping tank. BACKGROUND

[0002] With the rapid expansion of the automobile industry, the public's expectations for the appearance of automobiles are increasingly stringent, not only pursuing excellent weather resistance, ultraviolet resistance and corrosion resistance, but also expecting the surface of the automobile to last forever. In the field of high-end and medium-high-end automobile manufacturing, many appearance parts need to be covered with a protective film through an electrophoretic coating process. During this process, the hangers used for carrying and fixing will also be attached with an electrophoretic paint layer. To ensure the smoothness of continuous production, these hangers must have their paint film completely removed before the next production cycle. In addition, for unqualified products generated during the production process, the electrophoretic paint film on the surface of the products also needs to be removed so that the products can re-enter the processing flow. Therefore, an oxide electrophoretic production line must be equipped with a paint stripping tank to realize the paint stripping process of the hangers and defective products.

[0003] In the prior art, as shown in Figure 1 , 2 , a paint stripping tank is usually made of stainless steel 316L

[0004] Lined with a PVDF plate inside the tank 800 (the paint stripping tank liquid has strong corrosiveness, 316L stainless steel has poor corrosion resistance, and the PVDF plate has good corrosion resistance). However, this method has some problems. First, the manufacturing process is relatively complex, and a stainless steel 316L outer tank needs to be made first, and then a PVDF inner tank needs to be lined inside, and the two need to be tightly connected and attached together with a plurality of stainless steel nails 810 and nuts, and a PVDF cover needs to be welded at the connection to prevent the tank liquid from contacting the steel nails, which is high in material and labor costs. Second, since it is a lined tank, the PVDF inner tank is single-sided welded, and the reliability is not high, and it is easy to leak. Moreover, once a leak occurs, the PVDF plate material surface is soaked in the tank liquid for a long time, and the later maintenance will make it difficult to repair, and the repaired one will leak again soon.

[0005] As shown in Figure 3 , 4 , in addition, there is an old method of first making an inner tank with a PVDF plate, then making a profile reinforcement outside, and finally adhering the profile and the PVDF inner tank 900 into one body by using the 8 cloth 10 oil process (one layer of glass fiber cloth, one layer of resin, and then one layer of glass fiber cloth, and one layer of resin, until 8 cloth 10 oil) of FRP glass fiber 910. This method is extremely complex and difficult to manufacture. SUMMARY

[0006] The utility model wants to solve the technical problem of the prior art, provides a paint stripping groove and including the paint stripping equipment of this paint stripping groove, the paint stripping groove is simple to make, and can effectively prevent tank liquid corrosion and leakage.

[0007] In order to solve the above problems, the utility model adopts the following technical scheme:

[0008] A paint stripping groove for removing the paint layer on the surface of product, including the bottom plate and the four side plates vertically connected with the bottom plate, the bottom plate and the four side plates constitute the groove type container with the top opening, the paint stripping groove contains tank liquid, the product coated with paint layer is soaked in the tank liquid to remove the paint layer on its surface, the bottom plate and the side plate are made of 904L stainless steel.

[0009] Preferably, the overflow port is formed in the side plate.

[0010] Preferably, the side plate and the bottom plate and the side plate and the side plate are double-face welded.

[0011] Preferably, the thickness of the bottom plate and the side plate ranges from 4 to 6 mm.

[0012] Preferably, the side plate outer wall is provided with a reinforcing rib assembly, the reinforcing rib assembly includes a first reinforcing rib unit, the first reinforcing rib unit includes a plurality of first reinforcing ribs arranged along the horizontal direction, and the plurality of first reinforcing ribs are arranged along the height direction of the side plate.

[0013] Preferably, the reinforcing rib assembly further includes a second reinforcing rib unit, the second reinforcing rib unit includes a plurality of second reinforcing ribs arranged along the vertical direction, and the plurality of second reinforcing ribs are arranged along the length direction of the side plate.

[0014] Preferably, the second reinforcing rib unit is located between the bottom plate and the lowermost first reinforcing rib.

[0015] The utility model also provides a paint stripping equipment, including the auxiliary groove, heat exchanger, delivery pump, pipeline assembly, further including above-mentioned paint stripping groove, the auxiliary groove sets up at one side of paint stripping groove, the pipeline assembly includes first pipeline and second pipeline, one end of first pipeline communicates with overflow port, and the other end extends to the upper side of auxiliary groove, and the tank liquid in paint stripping groove is overflowed to the auxiliary groove through first pipeline, the heat exchanger sets up in auxiliary groove, is used for heating the tank liquid in auxiliary groove, one end of second pipeline sets up in auxiliary groove, and the other end extends to paint stripping groove, and is combined bottom plate setting of paint stripping groove, a plurality of sprays are equipped on the section of second pipeline combined bottom plate of paint stripping groove, and the delivery pump is set up on second pipeline and is used for the tank liquid after heating is returned to paint stripping groove through second pipeline.

[0016] The paint stripping groove in the utility model is made of 904L stainless steel, can effectively prevent the corrosion of the tank liquid, thereby avoiding the tank liquid leakage, and further improves the service life of the paint stripping groove. Since it is a single groove structure, double-sided welding can be adopted, and the welding method has very high reliability, so the welding leakage problem will not occur. The paint stripping groove has simple structure and convenient manufacturing, and the artificial manufacturing time is directly reduced by 70% compared with the traditional process, greatly improves the production efficiency, reduces the production cost, and simplifies the production process. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is the front view of the paint stripping groove of the 316L stainless steel lined PVDF plate in the prior art;

[0018] Figure 2 is the side view of the paint stripping groove of the 316L stainless steel lined PVDF plate in the prior art;

[0019] Figure 3 is the front view of the paint stripping groove of the PVDF plate coated with glass fiber reinforced plastic in the prior art;

[0020] Figure 4 is the side view of the paint stripping groove of the PVDF plate coated with glass fiber reinforced plastic in the prior art;

[0021] Figure 5 is the front view of the paint stripping groove in the embodiment 1 of the utility model;

[0022] Figure 6 is the side view of the paint stripping groove in the embodiment 1 of the utility model;

[0023] Figure 7 is the structure schematic view of the paint stripping equipment in the embodiment 2 of the utility model.

[0024] In the drawing: 100-paint stripping groove, 200-overflow port, 300-first reinforcing rib, 400-second reinforcing rib, 500-secondary groove, 600-first pipeline, 610-second pipeline, 620-sprayer, 630-conveying pump, 700-heat exchanger, 800-stainless steel 316L tank, 810-stainless steel nail, 900-PVDF inner tank, 910-glass fiber. DETAILED DESCRIPTION

[0025] The technical solutions in the utility model will be clearly and completely described below with reference to the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of the utility model.

[0026] In the description of the utility model, it is necessary to explain that the terms such as " upper " indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawing, and it is only for the convenience and simplification of description, and therefore it cannot be understood as the limitation of the utility model.

[0027] In the description of the utility model, the terms " first " and " second " are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0028] In the description of the utility model, it is necessary to explain that, unless otherwise expressly provided and limited, the terms " connection ", " setting ", " installation " and " fixed " should be understood in a broad sense, for example, it can be fixedly connected or detachably connected, or integrally connected, it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0029] The utility model provides a kind of paint stripping groove, for removing the paint layer on the surface of product, including bottom plate and four side plates vertically connected with bottom plate, the bottom plate and four side plates form the groove container with top opening, the paint stripping groove is filled with tank liquid, product coated with paint layer is soaked in the tank liquid to remove the paint layer on its surface, the bottom plate and the side plate are made of 904L stainless steel.

[0030] The utility model further provides a kind of paint stripping equipment, including auxiliary groove, heat exchanger, delivery pump, pipeline assembly, further including above-mentioned paint stripping groove, the auxiliary groove is located at one side of the paint stripping groove, the pipeline assembly includes first pipeline and second pipeline, one end of the first pipeline is communicated with the overflow port, and the other end extends to the upper side of auxiliary groove, tank liquid in paint stripping groove is overflowed to auxiliary groove by first pipeline, the heat exchanger is arranged in the auxiliary groove, for heating tank liquid in auxiliary groove, one end of the second pipeline is arranged in the auxiliary groove, and the other end extends to paint stripping groove, and is attached to the bottom plate of paint stripping groove, a plurality of spray heads are arranged on the section of the second pipeline attached to the bottom plate of paint stripping groove, the delivery pump is arranged on the second pipeline, for returning heated tank liquid to paint stripping groove by second pipeline.

[0031] Example 1

[0032] As Figure 5 , 6As shown, the embodiment discloses a paint stripping tank 100 for removing paint layer on the surface of products. Specifically, in the field of medium-high-end and high-end automobile manufacturing, many appearance parts need to be covered with a protective film through an electrophoretic coating process. In this process, the hangers for carrying and fixing the automobile exterior parts will also be attached with electrophoretic paint layer. In order to ensure the smoothness of continuous production, these hangers need to completely remove the paint film on them before the next production cycle. In addition, when the paint layer on the automobile appearance parts is unqualified, the paint layer on the surface of the automobile appearance parts also needs to be removed so as to rejoin the processing flow. The stripping of the hangers and the unqualified paint layer is carried out in the paint stripping tank 100.

[0033] Specifically, in the embodiment, the paint stripping tank 100 includes a bottom plate and four side plates vertically connected with the bottom plate. The bottom plate and the four side plates form a tank-type container with an open top. The paint stripping tank 100 is filled with a tank liquid. The main components of the tank liquid are sulfuric acid, dimethyl sulfoxide and some solubilizers and corrosion inhibitors, which can remove the paint layer on the unqualified products and hangers. The unqualified products and hangers coated with the paint layer are soaked in the tank liquid to remove the paint layer on the surface of the unqualified products and hangers. After the paint stripping is completed, the hangers and the unqualified products re-enter the processing flow.

[0034] Specifically, the bottom plate and the side plates in the embodiment are made of 904L stainless steel. Since the tank liquid has a certain corrosive property, the 904L stainless steel has good corrosion resistance, so that the paint stripping tank 100 can be prevented from being corroded by the tank liquid, and the service life of the paint stripping tank 100 is improved.

[0035] In the embodiment, the bottom plate of the paint stripping tank and the side plates on both sides thereof are formed in a bending manner. The other two side plates are welded and connected with the bottom plate and the adjacent side plates in a double-sided welding manner.

[0036] Since the paint stripping tank 100 in the embodiment has a single-tank structure without an inner tank and an outer tank, double-sided welding can be used. Compared with single-sided welding, double-sided welding has very high reliability, so that the leakage problem does not occur at the welding position.

[0037] In the embodiment, the thickness of the bottom plate and the side plates ranges from 4 mm to 6 mm. Specifically, the thickness of the bottom plate and the side plates is the same, and is 4 mm.

[0038] In the embodiment, the side plate outer wall is provided with a reinforcing rib assembly. The reinforcing rib assembly includes a first reinforcing rib unit. The first reinforcing rib unit includes a plurality of first reinforcing ribs 300 arranged in a horizontal direction. The plurality of first reinforcing ribs 300 are arranged in a height direction of the side plate.

[0039] Optionally, the reinforcing rib assembly further includes a second reinforcing rib unit. The second reinforcing rib unit includes a plurality of second reinforcing ribs 400 arranged in a vertical direction. The plurality of second reinforcing ribs 400 are arranged in a length direction of the side plate.

[0040] As Figure 5 , 6 shown, specifically, the paint stripping tank 100 is provided with 4 first reinforcing ribs 300 on each side plate along the height direction, and the 4 first reinforcing ribs 300 are uniformly arranged. The second reinforcing rib unit is located between the bottom plate and the lowermost first reinforcing rib 300. The first reinforcing rib unit and the second reinforcing rib unit effectively improve the strength and carrying capacity of the paint stripping tank 100.

[0041] As Figure 5 , 6 shown, the side plate of the paint stripping tank 100 in the width direction is provided with an overflow port 200, which is located at an intermediate position above the height direction of the side plate. The tank liquid in the paint stripping tank 100 is discharged from the overflow port 200 and enters the heat exchanger of the auxiliary tank. The heated tank liquid returns to the paint stripping tank 100 through the delivery pump (high-temperature tank liquid has paint stripping effect).

[0042] The manufacturing process of the paint stripping tank 100 in the embodiment is as follows:

[0043] First, a complete paint stripping tank 100 is made by bending and welding of stainless steel 904L material;

[0044] Then, the paint stripping tank 100 is surface treated and cleaned to ensure that it will not affect the paint stripping effect during use.

[0045] The paint stripping tank 100 in the embodiment is made of 904L stainless steel, which can effectively prevent corrosion of the tank liquid, thereby avoiding leakage of the tank liquid, and thus improving the service life of the paint stripping tank 100. Since it is a single tank structure, double-sided welding can be used. This welding method has very high reliability, so there is no problem of leakage at the welding position. The paint stripping tank 100 has simple structure and is easy to manufacture. The manual manufacturing time is directly reduced by 70% compared with the traditional process, greatly improving the production efficiency, reducing the production cost, and simplifying the production process. In the traditional technology, PVDF plate is used as the lining, and the price of PVDF material is high. The paint stripping tank 100 in the embodiment does not need to use PVDF material, which greatly reduces the cost. And avoid using complex FRP glass fiber 8 cloth 10 oil process, simplify the production process.

[0046] Example 2

[0047] As Figure 7As shown, the utility model also provides a kind of paint stripping equipment, including auxiliary groove 500, heat exchanger 700, delivery pump 630, pipeline assembly, still including paint stripping groove 100 in embodiment 1, auxiliary groove 500 is arranged at one side of paint stripping groove 100, pipeline assembly includes first pipeline 600 and second pipeline 610, one end of first pipeline 600 is communicated with overflow port 200, and the other end extends to the upper side of auxiliary groove 500, tank liquid in paint stripping groove 100 is overflowed to auxiliary groove 500 by first pipeline 600, heat exchanger 700 is arranged in auxiliary groove 500, for the heating of tank liquid in auxiliary groove 500, one end of second pipeline 610 is arranged in auxiliary groove 500, and the other end extends to paint stripping groove 100, and is attached to the bottom plate of paint stripping groove 100 setting, a plurality of spray heads 620 are equipped on the section of second pipeline 610 attached to the bottom plate of paint stripping groove 100, and delivery pump 630 is arranged on second pipeline 610, for the back input of heated tank liquid to paint stripping groove 100 by second pipeline 610.

[0048] As Figure 7 As shown, specifically, auxiliary groove 500 is arranged at one side of paint stripping groove 100, tank liquid in paint stripping groove 100 is flowed into auxiliary groove 500 by overflow port 200 and first pipeline 600, and heat exchanger 700 in auxiliary groove 500 heats tank liquid, to heat tank liquid to above 90 DEG C (in this temperature range, tank liquid can play a role, and paint film on the surface of product is removed). One end of second pipeline 610 extends to the bottom of auxiliary groove 500, and the other end extends out of auxiliary groove 500, and extends into paint stripping groove 100 from the top of paint stripping groove 100, and second pipeline 610 is branched into two pipelines from the top of paint stripping groove 100, and the two pipelines extend vertically downwards along the two sides of the side plate of paint stripping groove 100 to the bottom of paint stripping groove 100, and then extend horizontally along the bottom of paint stripping groove 100, and a plurality of spray heads 620 are arranged at intervals on the horizontal section of second pipeline 610 attached to the bottom plate of paint stripping groove 100, for spraying heated tank liquid into paint stripping groove 100.

[0049] As described above, tank liquid is circulated between paint stripping groove 100 and auxiliary groove 500 constantly, to ensure that tank liquid is always in high-temperature state, so as to play its paint film removing effect.

[0050] The paint stripping equipment in the embodiment is made of 904L stainless steel paint stripping groove 100, which can effectively prevent tank liquid from being corroded, thereby avoiding tank liquid leakage, and further improving the service life of paint stripping groove 100. Tank liquid is always kept in high-temperature state through circulation between paint stripping groove 100 and auxiliary groove 500, thereby maintaining the effect of efficiently removing paint film.

[0051] It can be understood that the above implementation is only an exemplary embodiment for illustrating the principle of the present application, but the present application is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present application, and these modifications and improvements are also considered as the protection scope of the present application.

Claims

1. A paint stripping tank for removing paint layers from the surface of a product, characterized in that, The container includes a base plate and four side plates vertically connected to the base plate. The base plate and the four side plates form a trough-shaped container with an open top. The paint stripping tank (100) contains a bath solution, and the product coated with paint is immersed in the bath solution to remove the paint layer from its surface. Both the base plate and the side plate are made of 904L stainless steel.

2. The paint stripping tank according to claim 1, characterized in that, An overflow port (200) is provided on the side plate.

3. The paint stripping tank according to claim 2, characterized in that, The side plate and the bottom plate, as well as the side plate and the side plate itself, are welded on both sides.

4. The paint stripping tank according to claim 3, characterized in that, The thickness of the base plate and the side plate ranges from 4 to 6 mm.

5. The paint stripping tank according to claim 4, characterized in that, The outer wall of the side plate is provided with a reinforcing rib assembly. The reinforcing rib assembly includes a first reinforcing rib unit, which includes a plurality of first reinforcing ribs (300) arranged along the horizontal direction, and the plurality of first reinforcing ribs (300) are spaced apart along the height direction of the side plate.

6. The paint stripping tank according to claim 5, characterized in that, The reinforcing rib assembly further includes a second reinforcing rib unit, which includes a plurality of second reinforcing ribs (400) arranged along the vertical direction, and the plurality of second reinforcing ribs (400) are spaced apart along the length direction of the side plate.

7. The paint stripping tank according to claim 6, characterized in that, The second reinforcing rib unit is located between the bottom plate and the first reinforcing rib (300) located at the bottommost layer.

8. A paint stripping device, comprising a secondary tank (500), a heat exchanger (700), a transfer pump (630), and a piping assembly, characterized in that, It also includes the paint stripping tank (100) as described in any one of claims 2-7. The secondary groove (500) is located on one side of the paint stripping groove (100). The piping assembly includes a first pipe (600) and a second pipe (610). One end of the first pipe (600) is connected to the overflow port (200), and the other end extends above the sub-tank (500). The plating solution in the paint stripping tank (100) overflows into the sub-tank (500) through the first pipe (600). The heat exchanger (700) is installed inside the secondary tank (500) and is used to heat the liquid in the secondary tank (500). One end of the second pipe (610) is disposed in the secondary groove (500), and the other end extends into the paint stripping groove (100) and is fitted to the bottom plate of the paint stripping groove (100). A plurality of nozzles (620) are provided on the section of the second pipe (610) that is fitted to the bottom plate of the paint stripping groove (100). The delivery pump (630) is installed on the second pipe (610) and is used to return the heated bath liquid to the paint stripping tank (100) through the second pipe (610).

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