WO2022247270A1

WO2022247270A1 - Composite barrel curled edge paint-repair-free method

Info

Publication number: WO2022247270A1
Application number: PCT/CN2021/142479
Authority: WO
Inventors: 茆林凤; 许文杰
Original assignee: 无锡四方友信股份有限公司; 太仓四方友信制桶有限公司; 南京四方制桶有限公司
Priority date: 2021-05-28
Filing date: 2021-12-29
Publication date: 2022-12-01
Also published as: CN113290163B; CN113290163A

Abstract

A composite barrel curled edge paint-repair-free method. A composite barrel comprises a barrel lid (10), a barrel body (20), a barrel bottom (30) and an inner container (50), wherein the barrel lid is provided with a movable lid body. The composite barrel curled edge paint-repair-free method comprises: assembling the barrel body and the barrel bottom, and assembling the barrel body and the barrel lid, so as to form a barrel body (100); spraying paint onto outer surfaces of the barrel body, the barrel bottom and the barrel lid by means of a spraying apparatus, and baking the paint; conveying the barrel body to a vertical capping machine; opening the movable lid body, and assembling and then mounting the inner container and the movable lid body onto an inner cavity of the barrel body; and remounting the movable lid body on the barrel lid by means of the vertical capping machine. By means of the method, the efficiency of mounting the inner container can be improved, and paint repair is also avoided.

Description

Composite bucket crimping method without touch-up paint

This application claims priority to a Chinese patent application with application number 202110594025.9 filed with the China Patent Office on May 28, 2021, the entire contents of which are incorporated herein by reference.

technical field

The application relates to a paint-free method for crimping a composite barrel.

Background technique

The barrel generally includes a barrel body, a barrel bottom, a barrel cover and an inner container. The bottom of the bucket is used to close the bottom of the bucket body. The lid is used to seal the top of the barrel. The liner is arranged in the barrel body. For solutions with strong permeability and other toxic and harmful solutions, the sealing performance of the barrel body is required to be high. A movable cover that can be opened or closed is also provided on the bung.

In the related art, after the bottom end of the bucket body is matched with the bottom of the bucket, a curling step is also included to improve the sealing effect. After the curling portion at the bottom of the bucket body overlaps with the curling portion on the outer edge of the barrel bottom, it starts to roll outwards to form a rolled portion. Similarly, there is also a roll-up portion formed between the top of the bucket body and the bucket lid in the related art.

After the barrel body, barrel bottom and barrel cover are assembled, the outer surface of the barrel body needs to be painted and then baked. Then install the inner tank: rotate and unscrew the movable cover, assemble the inner tank and the movable cover, install it in the inner cavity of the staving, and then reconnect the movable cover with the bung. In the process of manually installing the liner, the paint on the rolled part is easy to wear. Manual touch-ups are usually required.

To sum up, the process of installing the liner in the related art takes a long time.

Contents of the invention

The present application provides a paint-free method for crimping composite drums, so as to improve the efficiency of installing the liner and realize paint-free.

This application adopts the following technical solutions:

A paint-free method for curling a composite bucket, the composite bucket includes a bucket cover, a bucket body, a bucket bottom and an inner container, and a movable cover is arranged on the bucket lid; the paint-free method for curling a composite bucket includes :

Assemble the bucket body and the bucket bottom, and assemble the bucket body and the bucket cover to form a bucket body;

Spray paint on the outer surface of the barrel body, the bottom of the barrel and the lid by spraying equipment, and bake the paint;

Transport the barrel to the vertical capping machine;

Open the movable cover, assemble the liner with the movable cover, and install it into the inner cavity of the barrel;

The movable cover is reinstalled to the bung by a vertical cover machine.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the bucket body of the embodiment of the present application;

Fig. 2 is the structural representation at I place of Fig. 1;

Fig. 3 is the schematic structural view of the liner of the embodiment of the present application;

Fig. 4 is the structural representation at II place of Fig. 1;

Fig. 5 is the structural representation of the bung lid of the embodiment of the present application;

Fig. 6 is a schematic structural view of the bucket body of the embodiment of the present application;

Fig. 7 is the schematic structural view of the bucket bottom of the embodiment of the present application;

Fig. 8 is a schematic diagram of the structure at III in Fig. 7 .

The names and labels of the components in the figure are as follows:

barrel body 100, barrel cover 10, fourth reserved curling portion 12, barrel body 20, barrel body body 21, inner cavity 211, first reserved curling portion 22, first curling structure 22a, barrel bottom 30, The barrel bottom main body 31 , the insertion cavity 311 , the second reserved curling portion 32 , the second curling structure 32 a , the rolled-up portion 40 a , the rolled-up portion 40 b , and the liner 50 .

Detailed ways

The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, but not to limit the present application. In addition, it should be noted that, for the convenience of description, only some structures related to the present application are shown in the drawings but not all structures.

In the description of this application, unless otherwise clearly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application in specific situations.

In this application, unless otherwise expressly specified and limited, a first feature being "on" or "under" a second feature may include direct contact between the first and second features, and may also include the first and second features Not in direct contact but through another characteristic contact between them. Moreover, "above", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. "Below", "beneath" and "under" the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

In the description of this embodiment, the terms "up", "down", "right", and other orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operations, rather than indicating Or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the application. In addition, the terms "first" and "second" are only used to distinguish in description, and have no special meaning.

This embodiment provides a paint-free method for crimping composite barrels. As shown in Fig. 1, Fig. 3 and Fig. 4, composite barrel comprises bung 10, ladle body 20, bucket bottom 30 and liner 50, and bung 10 is provided with movable cover (not shown).

The paint-free method for curling the edge of a composite barrel includes steps: S1, assembling the barrel body 20 and the barrel bottom 30 and assembling the barrel body 20 and the barrel cover 10 to form the barrel body. S2. Spray paint on the outer surfaces of the barrel body 20, the barrel bottom 30 and the barrel cover 10 by spraying equipment, and bake the paint. S3. Transport the barrel to the vertical capping machine. S4. Open the movable cover, assemble the liner 50 with the movable cover, and install it in the inner chamber 211 of the barrel. S5. Reinstall the movable cover body to the bucket cover 10 through the vertical cover loading machine.

In this embodiment, the movable lid body is reinstalled to the barrel lid 10 by a vertical lid loading machine. Compared with the manual installation of the movable lid body in the related art, the installation efficiency can be improved. In addition, the wear of the turned-up portion 40a and the turned-up portion 40b can also be reduced, so that manual touch-up painting is not required. The whole process of installing the liner 50 is relatively short in time.

In this embodiment, in step S3, the barrel body is transported to the vertical capping machine through the transport mechanism, thereby further saving time.

As shown in Figure 2, Figure 6 and Figure 7, in this embodiment, in step S1, the process of assembling the barrel body 20 and the barrel bottom 30 is as follows: the outer edge of the bottom end of the barrel body 20 has a first reserved curling portion 22 , the outer edge of the barrel bottom 30 has a second reserved curling portion 32 . After the bucket bottom 30 seals the bottom of the bucket body 20 and the first reserved curling portion 22 and the second reserved curling portion 32 are superimposed, they are turned upwards and outwards to form a rolled portion 40a. The rolled portion 40a is turned over along the curve to improve the sealing effect of the barrel bottom 30 .

The curling principle of the barrel body 20 and the barrel lid 10 in this embodiment is the same as that of the barrel body 20 and the barrel bottom 30 . For example, as shown in Figure 4, Figure 5 and Figure 6, in this embodiment, in step S1, the process of assembling the barrel body 20 and the barrel lid 10 is: the top outer edge of the barrel body 20 has a third reserved curling portion , the outer edge of the bucket cover 10 has a fourth reserved curling portion 12 . After the barrel lid 10 seals the top of the barrel body 20 and the third reserved curling portion and the fourth reserved curling portion 12 are overlapped, they are turned downwards and outwards to form a rolled portion 40b. The rolled portion 40b is turned over along the curve to improve the sealing effect of the barrel lid 10 .

In this embodiment, the movable cover is screwed to the bucket cover 10 . The movable cover can be disassembled from the bucket cover 10 or installed to the bucket cover 10 by screwing.

In this embodiment, in step S1 , a bottom sealing machine is used to assemble the bucket bottom 30 to the bottom of the bucket body 20 .

In this embodiment, a flat material is selected and rolled onto the cylindrical drum body 20 by a rounding machine. For example, in this embodiment, the barrel body 20 is expanded to a predetermined shape by a rib expanding machine.

In this embodiment, the barrel bottom 30 is formed by punching a cold-rolled plate through a punching machine.

As shown in Figures 2 and 7, in this embodiment, the second reserved curling portion 32 is turned over to form a second curling structure 32a, and the tail section of the second curling structure 32a can be aligned with the outer peripheral surface of the barrel body 20 fit. The first reserved curling portion 22 is turned over to form a first curling structure 22a. The tail section of the first curling structure 22 a and the tail section of the second curling structure 32 a may be parallel to the axial direction of the barrel body 20 .

As shown in Fig. 7 and Fig. 8, in this embodiment, the barrel bottom 30 is an integrally formed part. The bucket bottom 30 is bent to form a bucket bottom main body 31 and a second reserved curling portion 32 located on the outer edge of the bucket bottom main body 31 . The barrel bottom main body 31 protrudes upwards, so that the bottom surface forms a socket cavity 311 . The bucket bodies 100 in this embodiment can also be stacked to reduce the occupied horizontal space.

As shown in Figure 8, the transition surface between the barrel bottom main body 31 and the second reserved curling portion 32 of this embodiment is a circular arc surface, and the opening area at the transition position is larger than the area of the insertion cavity 311, thus forming Guide the flaring structure to facilitate the insertion of the barrel lid 10 of the lower barrel body 100 into the insertion cavity 311 .

As shown in Figure 2 and Figure 6, in this embodiment, the bucket body 20 includes a bucket body body 21 and a first reserved curling portion 22 located at the outer edge of the bottom end of the bucket body body 21, the bucket bottom body 31 and the bucket body The main body 21 is plug-fitted. For example, the bucket bottom body 31 is basically located in the inner cavity 211 of the bucket body body 21 , and the outer peripheral surface of the bucket bottom body 31 is attached to the inner wall of the bucket body body 21 to improve the sealing effect. Similarly, the bucket cover 10 is also plugged and fitted with the bucket body body 21 .

As shown in Figures 6 and 7, in this embodiment, in the original state, the first reserved curling portion 22 extends outward perpendicular to the axis of the barrel body 20, and the second reserved curling portion 32 is perpendicular to the barrel The axis of the bottom 30 extends outward. Before the turned-up portion 40 is formed, the first reserved curling portion 22 may also be pre-rolled by a pre-roller, and the second reserved curling portion 32 may be pre-rolled by the pre-roller. Similarly, as shown in FIGS. 5 and 6 , in the original state, the third reserved curling portion extends outward perpendicular to the axis of the barrel body 20 , and the fourth reserved curling portion 12 is perpendicular to the axis of the barrel cover 10 Extend outward.

The overall steps include:

The cold-rolled plate is punched and formed by a punching machine and a mold to form the barrel bottom 30 . The formed barrel bottom 30 is pre-rolled by a pre-roller to the second reserved curling portion 32 .

The bucket cover 10 is punched by a punching machine and a mold. Rivet the barrel cover 10 that has been punched and cooperate with the threaded mouth parts with a punching machine and a mold.

Cut square body panels according to the required specifications. Roll the body of the barrel to a cylindrical shape with a rounding machine. The barrel body 20 that has been circled is welded and connected with an electric welding machine to form a complete barrel body 20 . Weld the ladle body 20 that has been spot-welded with a seam welder to improve the leak-proof performance of the ladle body 20. Barrel body 20 is expanded to become required shape with stretching machine. Leak detection is carried out to the barrel body 20 that has been edged and formed with a leak detection machine.

The barrel body 20 and the barrel bottom 30 are assembled with a bottom sealing machine.

Assemble the bucket cover 10 and the bucket body 20.

The outer surface of the barrel body 100 is sprayed with a spraying equipment, and baked by a baking equipment after spraying.

Open movable cover body, install liner 50, reinstall movable cover body.

Claims

A paint-free method for crimping a composite bucket, the composite bucket includes a bucket cover (10), a bucket body (20), a bucket bottom (30) and an inner container (50), and the bucket cover (10) is provided with Movable cover; the method of free-painting the composite barrel crimping includes:

Assemble the bucket body (20) and the bucket bottom (30), and assemble the bucket body (20) and the bucket cover (10) to form a bucket body;

Spray paint on the outer surface of the barrel body (20), the bottom of the barrel (30) and the barrel cover (10) by spraying equipment, and bake the paint;

Transport the barrel to the vertical capping machine;

Open the movable cover, assemble the liner (50) with the movable cover, and install it into the inner cavity (211) of the barrel;

The movable cover body is reinstalled to the bucket cover (10) by the vertical cover loading machine.
The method according to claim 1, wherein the conveying the barrel to the vertical capping machine comprises: conveying the barrel to the vertical capping machine through a conveying mechanism.
The method according to claim 1, wherein, the outer edge of the bottom end of the barrel body (20) has a first reserved curling portion (22), and the outer edge of the barrel bottom (30) has a second reserved The curling part (32), the assembly of the barrel body (20) and the barrel bottom (30) includes:

After the barrel bottom (30) blocks the bottom end of the barrel body (20) and the first reserved curling portion (22) and the second reserved curling portion (32) are superimposed, upward Flip outward to form the first rolled portion.
The method according to claim 1, wherein, the top outer edge of the bucket body (20) has a third reserved curling portion, and the outer edge of the barrel cover (10) has a fourth reserved curling portion ( 12), said assembly of said barrel body (20) and said barrel cover (10) includes:

After the barrel cover (10) blocks the top of the barrel body (20) and the third reserved curling portion and the fourth reserved curling portion (12) are superimposed, they are turned downwards and outwards to form The second turning part.
The method according to claim 3 or 4, wherein the first rolled part and the second rolled part are respectively turned along a curve.
The method according to claim 1, wherein the movable cover is screwed to the bucket cover (10).
The method according to claim 1, wherein the bucket bottom (30) is assembled to the bottom end of the bucket body (20) by a bottom sealing machine.
The method according to claim 1, wherein the barrel body (20) is obtained by: selecting a flat material and rolling the flat material into a cylindrical shape by a rounder to form the barrel body (20).
The method according to claim 8, wherein, the barrel body (20) is expanded to a predetermined shape by a rib expanding machine.
The method according to claim 1, wherein, the barrel bottom (30) is formed by punching a cold-rolled plate through a punch press.