WO2022227456A1

WO2022227456A1 - Full-covered bottom welding device and process for multi-layer composite pot

Info

Publication number: WO2022227456A1
Application number: PCT/CN2021/127131
Authority: WO
Inventors: 夏彪
Original assignee: 浙江赤诚工贸有限公司
Priority date: 2021-04-25
Filing date: 2021-10-28
Publication date: 2022-11-03
Also published as: CN113145959B; CN113145959A

Abstract

A full-covered bottom welding device for a multi-layer composite pot, comprising a housing (100); a cavity (211) is formed in the housing (100); through holes (101) are oppositely provided on opposite side walls of the cavity (211); a sheet (110) penetrating through the cavity (211) is provided between the through holes (101); rotating rings (220) are provided in the cavity (211) at the through holes (101); each rotating ring (220) is provided with a clamping member (221) for clamping the sheet (110); an acid pickling mechanism (230) for performing acid pickling on the sheet (110) is provided in the cavity (211); the acid pickling mechanism (230) comprises a protective cover (310) covering an upper surface of the sheet (110); an acid spraying nozzle (411) and a base spraying nozzle (412) are provided in the protective cover (310); and a rotatable scraper blade (421) for scrapping the sheet (110) is provided in the protective cover (230). The device scraps, by means of the scraper blade, to uniformly apply an acid liquor and a base liquor that are sprayed into the protective cover, such that the sheet is subjected to better acid pickling, and the acid liquor after the acid pickling is neutralized, thereby avoiding acid etching of the sheet by the residual acid liquor. Also involved is a full-covered bottom welding process for a multi-layer composite pad.

Description

Equipment and welding process for full-covered bottom welding of multi-layer composite pot

technical field

The invention relates to the technical field of composite pot production, in particular to a multi-layer composite pot full-covered bottom welding equipment and a welding process.

Background technique

Brazing refers to a welding method in which the filler metal and the weldment below the melting point of the weldment are heated to the melting temperature of the filler metal at the same time, and then the liquid filler metal is used to fill the gap of the solid workpiece to connect the metals. During brazing, the oxide film and oil stains on the contact surface of the base metal should be removed first, so that the capillary can play a role after the brazing filler metal is melted and increase the wettability and capillary fluidity of the brazing filler metal.

In order to solve the problem of uneven heating at the bottom of the stainless steel pot, a stainless steel pot with a composite bottom of an aluminum plate has appeared. The processing method is mainly brazing. During the brazing process, it is necessary to remove the oxide film and oil on the contact surface of the plate. The removal is convenient for subsequent brazing operations; at present, pickling is usually used to process the plate, but there is a lack of better equipment for pickling the plate in the prior art.

SUMMARY OF THE INVENTION

Aiming at some or some defects existing in the prior art, the present invention provides a multi-layer composite pot full-covered bottom welding equipment and a welding process.

In order to solve the above technical problems, the present invention is solved by the following technical solutions.

The equipment for full-covered bottom welding of a multi-layer composite pot comprises a shell, a cavity is arranged in the shell, through holes are arranged on opposite side walls of the cavity, and a plate passing through the cavity is arranged between the through holes; A swivel ring is arranged at the through hole, a clamping piece for holding the plate is arranged in the swivel ring, and a pickling mechanism for pickling the plate is arranged in the cavity, and the pickling mechanism includes a cover on the upper plate surface of the plate The protective cover is provided with an acid spray head and an alkali spray head in the protective cover, and a rotatable scraper for scraping the plate is arranged in the protective cover.

Through the structure of the present invention, the acid solution and alkali solution sprayed into the protective cover can be scraped and wiped evenly by the scraper, so that the plate can be better pickled and the acid solution after pickling can be neutralized, avoiding Residual acid etched the plate.

Preferably, the opposite side walls of the cavity are oppositely provided with chute located above the through hole in the up-down direction, and the cavity is provided with a driving mechanism for driving the protective cover to rise and fall; The protective cover is connected, and the end face of the lifting plate is provided with a sliding rod extending into the corresponding chute; the driving mechanism also includes a driving rod hingedly connected to the sliding rod at one end, and the other end of the driving rod is rotatably connected to the swivel ring. It is rotatably arranged on the side wall of the cavity.

Through the structure of the present invention, the swivel ring rotates 180° to drive the plate to turn over, and at the same time drives the protective cover to be placed on the plate surface of the plate after turning over, preferably pickling the other side of the plate.

Preferably, the side walls of the cavity located on both sides of the plate are oppositely provided with storage grooves, and a rotating plate is hinged in the storage groove, and the rotating plate is provided with a water spray head for spraying water on the plate; The installation frame is provided with a hinge rod, one end of which is hingedly connected to the installation frame, and the other end of the hinge rod is hingedly connected to the corresponding rotating plate.

Through the structure of the present invention, during the rotation of the swivel ring 0-90°, the rotating plate is driven to rotate out of the storage tank to spray water to wash the plate, preferably to clean the residual acid and alkali liquid on the plate, and the swivel rotates 90- During the 180° process, the rotating plate is driven to turn into the storage slot for storage, which reduces the space occupied by the rotating plate in the cavity and makes the equipment compact.

Preferably, hinge holes are provided on the opposite side walls of the receiving slot and at the upper end, and the rotating plate is provided with a hinge column extending into the corresponding hinge hole, which preferably realizes the hinged connection of the rotating plate in the receiving slot.

Preferably, a sliding groove with a T-shaped cross-section is provided on the opposite side of the cavity along the circumferential direction of the through hole, a sliding block sliding in the sliding groove is provided on the side of the swivel ring, and a rack is provided on the outer peripheral surface of the swivel ring. The casing is provided with a gear matched with the rack through the first motor.

Through the structure of the present invention, the slider is slidably arranged in the sliding groove to realize the rotation of the swivel to be connected to the side wall of the cavity, wherein the gear and the rack are meshed, so that the first motor drives the gear to rotate and drives the rack to rotate, which is relatively It is best to realize the forward and reverse rotation of the swivel between 0-180°.

Preferably, the clamping member includes a connecting frame bolted in the swivel ring, and the connecting frame is provided with a guide wheel for clamping and guiding the plate, preferably, the plate can be clamped and guided.

Preferably, the protective cover is provided with a second motor for driving the scraper to rotate, which preferably realizes the rotation of the scraper in the protective cover.

Preferably, the bottom of the shell is provided with a sewage pipe, preferably to discharge the sewage collected in the cavity.

The present invention also provides a multi-layer composite pot full-bottom welding process, using the multi-layer composite pot full-bottom welding equipment described in the claims, which specifically includes the following steps:

Step 1. Use the multi-layer composite pot full-covered bottom welding equipment to pickle the plate to remove the oxide film and oil stain on the surface of the plate;

Step 2, drying, cutting and slitting the pickled plate;

Step 3: Apply brazing material and high temperature brazing to the stripped plate.

Description of drawings

Fig. 1 is the schematic diagram of the equipment for full-cover bottom welding of the multilayer composite pot in Example 1;

2 is a schematic cross-sectional view of a multi-layer composite pot fully covered bottom welding equipment in Example 1;

Fig. 3 is the partial schematic diagram of the apparatus in embodiment 1;

Fig. 4 is the schematic diagram of the pickling mechanism in embodiment 1;

Fig. 5 is the schematic diagram of the rotating plate in embodiment 1;

Fig. 6 is the installation schematic diagram of the swivel in embodiment 1;

FIG. 7 is an enlarged schematic view of part A in FIG. 6 .

Detailed ways

In order to further understand the content of the present invention, the present invention will be described in detail with reference to the accompanying drawings and embodiments. It should be understood that the embodiments are only for explaining the present invention and not for limiting.

Example 1

As shown in FIGS. 1-7 , this embodiment provides a multi-layer composite pot full-covered bottom welding equipment, which includes a casing 100 , a cavity 211 is provided in the casing 100 , and the opposite side walls of the cavity 211 are provided with a cavity 211 . A through hole 101 is oppositely provided, and a plate 110 passing through the cavity 211 is arranged between the through holes 101; a swivel 220 is arranged in the cavity 211 and located at the through hole 101, and a clip for holding the plate 110 is arranged in the swivel 220 The holder 221, the cavity 211 is provided with a pickling mechanism 230 for pickling the plate 110, the pickling mechanism 230 includes a protective cover 310 covering the upper surface of the plate 110, and the protective cover 310 is provided with an acid spray head 411 and the alkali spray head 412, the protective cover 230 is provided with a rotatable scraper 421 for scraping the plate 110.

In this embodiment, the plate 110 horizontally penetrating the cavity 211 is clamped by the action of the clamping member 221 to be fixed on the swivel 220; wherein, the protective cover 310 is placed on the horizontal plate 110, and the inner The acid spraying head 411 sprays acid liquid to pickle the plate 110. Due to the rotating setting of the scraper 421, the scraper 421 can scrape the oil stains and sundries on the surface of the plate 110 during the rotation process. The acid solution is evenly smeared on the plate 110, so that the acid solution can evenly contact and react with the plate 110, so that the effect of pickling the plate 110 is better and the acid consumption is saved; The alkali head 412 can spray alkali solution to neutralize the acid solution remaining on the plate 110 after pickling. In this embodiment, the housing 100 is provided with an acid supply tank for supplying acid to the acid spray head 411 and an alkali supply tank for supplying alkali to the alkali spray head 412 respectively.

In this embodiment, the opposite side walls of the cavity 211 are oppositely provided with a chute 321 located above the through hole 101 in the up-down direction. The cavity 211 is provided with a driving mechanism 240 for driving the protective cover 310 to rise and fall; the driving mechanism 240 includes Lifting plate 330, the lifting plate 330 is connected with the protective cover 310 through the connecting rod 331, the end surface of the lifting plate 330 is provided with a sliding rod 431 extending into the corresponding chute 321; the driving mechanism 240 also includes one end hingedly connected to the sliding rod 431 The other end of the driving rod 340 is rotatably connected to the swivel ring 220 , and the swivel ring 220 is rotatably arranged on the side wall of the cavity 211 .

Through the arrangement of the sliding groove 321 , the lifting plate 330 , the connecting rod 331 and the sliding rod 431 in this embodiment, the sliding rod 431 is located in the sliding groove 321 to limit the sliding rod 431 , so that it can only be in the cavity 211 inner lift; since the connecting rod 331 is connected to the protective cover 310, the lifting plate 330 drives the protective cover 310 to rise and fall during the lifting process; in this embodiment, the sliding rod 431 passes through one end of the driving rod 340 to realize the Hinged connection, the other end of the driving rod 340 is provided with a rotating column, and the rotating ring 220 is provided with a rotating groove for the rotating column to extend into. The rotating ring 220 can be rotated by 180° to drive the plate 110 to rotate by 180° to realize the turning of the plate 110. During the rotation of the swivel 220 between 0 and 90°, the driving rod 340 drives the lifting plate 330 along the sliding The rise of the groove 321 drives the protective cover 310 to rise. During the rotation of the swivel 220 between 90 and 180°, the driving rod 340 drives the lifting plate 330 to descend and drives the protective cover 310 to descend, so that the protective cover 310 covers the plate of the overturned plate 110 On the surface, the other side of the plate 110 is pickled; during the rotation of the swivel 220, there are the rising height h ₁ (t) of the protective cover 310 and the vertical rising height h ₂ (t) of the side of the plate 110, and the protective cover 310, the matching structure of the plate 110 and the driving rod 340 is in the process of 0-90° rotation, h ₁ (t)>h ₂ (t), therefore, the movement between the protective cover 310, the plate 110 and the driving rod 340 will not be formed interference; by adopting the structure in this embodiment, the swivel 220 can be rotated forward and reverse by 180°, so that the pickling mechanism 230 can preferably pickle the surface of the overturned plate 110 , so that the equipment can pickle both sides of the plate 110 .

In this embodiment, the side walls of the cavity 211 located on the two sides of the plate 110 are oppositely provided with receiving grooves 212 , and rotating plates 250 are hinged in the receiving grooves. The water head 511; the sliding rod 431 is provided with a mounting frame 432, one end of the mounting frame 432 is provided with a hinge rod 520 hingedly connected to the mounting frame 432, and the other end of the hinge rod 520 is hingedly connected to the corresponding rotating plate 250.

In this embodiment, both ends of the hinge rod 520 are hinged on the mounting frame 432 and the rotating plate 250 respectively, so that when the rotating ring 220 rotates between 0-90° to drive the lifting plate 330 to rise, the hinge rod 520 drives the rotating plate 250 is rotated out of the storage tank 212. Since the lower end and the side surface of the lower end of the rotating plate 250 are provided with water spray heads 511, during the process of rotating the rotating plate 250 out of the storage tank, the water spray head 511 sprays clean water to wash the sides of the plate 110. , it is preferable to rinse the acid and lye remaining on the plate 110 after pickling, so as to prevent the acid and alkali from corroding the plate 110; , the hinge rod 520 drives the rotating plate 250 to rotate into the receiving groove 212, so that the rotating plate 250 is stored in the receiving groove 212 during the pickling process of the plate 110, which reduces the size of the space occupied by the cavity 211 and makes the structure of the equipment It is more compact; in this embodiment, the housing 100 is provided with a water supply tank for supplying water to the water spray head 511 .

In this embodiment, the opposite side walls of the receiving slot 212 and at the upper end are oppositely provided with hinge holes, and the rotating plate 250 is provided with a hinge column 512 extending into the corresponding hinge hole, preferably, the rotating plate 250 is hingedly connected to in the receiving slot 212 .

In this embodiment, a sliding groove with a T-shaped cross-section is provided on the opposite side of the cavity 211 along the circumferential direction of the through hole 101 , and a sliding block 351 sliding in the sliding groove is provided on the side of the swivel ring 220 . A rack 352 is provided on the surface, and a gear 611 matched with the rack 352 is provided on the casing 100 through the first motor 610 .

Through the structure in this embodiment, the sliding block 351 is slidably arranged in the sliding groove, so that the swivel 220 is rotatably connected to the side wall of the cavity 211, wherein the gear 611 and the rack 352 are engaged, so that the first motor 610 drives the gear The rotation of 611 drives the rack 352 to rotate, preferably realizing the forward and reverse rotation of the swivel 220 between 0 and 180°.

In this embodiment, the clamping member 221 includes a connecting frame 711 bolted in the swivel ring 220 . The connecting frame 711 is provided with a guide wheel 712 for clamping and guiding the plate 110 .

In this embodiment, the connecting frame 711 is provided with a threaded post, and the inner side wall of the swivel ring 220 is provided with a threaded hole. Set so that the plate 110 is clamped and guided.

In this embodiment, the protective cover 310 is provided with a second motor 311 for driving the scraper 421 to rotate, which preferably realizes the rotation of the scraper 421 in the protective cover 310 .

In this embodiment, the bottom of the casing 100 is provided with a sewage pipe 213 .

Through the structure in this embodiment, the acid solution, alkali solution and sewage collected at the bottom of the cavity 211 can be discharged from the cavity 211 through the sewage pipe 213 .

The present embodiment also provides a multi-layer composite pot full-bottom welding process, using the above-mentioned multi-layer composite pot full-bottom welding equipment, which specifically includes the following steps:

Step 1, using the multi-layer composite pot full-covered bottom welding equipment to pickle the plate 110 to remove the oxide film and oil stains on the surface of the plate;

Step 2, drying, cutting and slitting the pickled plate 110;

Step 3: Apply brazing material and high temperature brazing to the stripped plate 110 .

In a word, the above are only preferred embodiments of the present invention, and all equivalent changes and modifications made according to the scope of the patent application of the present invention shall fall within the scope of the patent of the present invention.

Claims

The equipment for full-covered bottom welding of a multi-layer composite pot is characterized in that: it comprises a casing (100), a cavity (211) is arranged in the casing (100), and opposite side walls of the cavity (211) are oppositely provided with a through hole (211). The hole (101) is provided with a plate (110) passing through the cavity (211) between the through holes (101); a swivel (220) is arranged in the cavity (211) and located at the through hole (101), and the swivel ( 220) is provided with a clamping member (221) for clamping the plate (110), the cavity (211) is provided with a pickling mechanism (230) for pickling the plate (110), and the pickling mechanism (230) ) includes a protective cover (310) covering the upper surface of the plate (110), the protective cover (310) is provided with an acid spray head (411) and an alkali spray head (412), and the protective cover (230) is provided with a A scraper (421) that rotates and is used to scrape the sheet (110).
The equipment for full-covered bottom welding of a multi-layer composite pot according to claim 1, wherein the opposite side walls of the cavity (211) are provided with chute (321) located above the through hole (101) opposite to each other along the up-down direction. ), the cavity (211) is provided with a driving mechanism (240) for driving the protective cover (310) up and down; the driving mechanism (240) includes a lifting plate (330), and the lifting plate (330) is connected to the protective cover (331) through the connecting rod (331). The cover (310) is connected, and the end face of the lifting plate (330) is provided with a sliding rod (431) extending into the corresponding sliding groove (321); A driving rod (340), the other end of which is rotatably connected to the swivel (220), and the swivel (220) is rotatably arranged on the side wall of the cavity (211).
The equipment for full-covered bottom welding of a multi-layer composite pot according to claim 2, wherein the side walls of the cavity (211) located on both sides of the plate (110) are oppositely provided with receiving grooves (212), and the receiving grooves are arranged in the receiving grooves. A rotating plate (250) is hingedly arranged on the rotating plate (250), and a water spray head (511) for spraying water on the plate (110) is arranged on the rotating plate (250); The frame (432) is provided with a hinge rod (520), one end of which is hingedly connected to the mounting frame (432), and the other end of the hinge rod (520) is hingedly connected to the corresponding rotating plate (250).
The equipment for full-covering bottom welding of a multi-layer composite pot according to claim 3, characterized in that: the opposite side walls of the receiving groove (212) and at the upper end are oppositely provided with hinge holes, and the rotating plate (250) is provided with a hinge hole. A hinge post (512) extending into the corresponding hinge hole.
The equipment for full-covered bottom welding of a multi-layer composite pot according to claim 2, characterized in that: a sliding groove with a T-shaped cross-section is provided on the opposite side of the cavity (211) along the circumferential direction of the through hole (101), and the swivel ring The side of the (220) is provided with a slider (351) that slides in the sliding groove, the outer peripheral surface of the swivel (220) is provided with a rack (352), and the casing (100) passes through the first motor (610) A gear (611) matched with the rack (352) is provided.
The equipment for full-covering bottom welding of a multi-layer composite pot according to claim 1, characterized in that: the clamping member (221) comprises a connecting frame (711) bolted in the swivel (220), and the connecting frame (711) A guide wheel (712) for clamping and guiding the plate (110) is provided on it.
The equipment for full-covered bottom welding of a multi-layer composite pot according to claim 1, wherein the protective cover (310) is provided with a second motor (311) for driving the scraper (421) to rotate.
The equipment for full-covering bottom welding of a multi-layer composite pot according to claim 1, characterized in that a sewage pipe (213) is provided at the bottom of the casing (100).
A multi-layer composite pot full-bottom welding process, using the multi-layer composite pot full-bottom welding equipment described in any one of claims 1-8, which specifically comprises the following steps:

Step 1, using the multi-layer composite pot full-covered bottom welding equipment to pickle the plate (110) to remove the oxide film and oil stains on the surface of the plate;

Step 2, drying, cutting and slitting the pickled plate (110);

Step 3: Apply brazing material and high temperature brazing to the stripped plate (110).