CN112113338B - Water heater inner container processing equipment and water heater inner container - Google Patents
Water heater inner container processing equipment and water heater inner container Download PDFInfo
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- CN112113338B CN112113338B CN201910532228.8A CN201910532228A CN112113338B CN 112113338 B CN112113338 B CN 112113338B CN 201910532228 A CN201910532228 A CN 201910532228A CN 112113338 B CN112113338 B CN 112113338B
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- water heater
- liner
- cylinder
- die
- processing equipment
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0005—Details for water heaters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
Abstract
The invention belongs to the field of water heater processing equipment, and particularly relates to water heater liner processing equipment and a water heater liner. The invention aims to solve the problem that the sealing performance of the inner container of the water heater is insufficient due to the defects that the joint of a first welding line and a second welding line on a pipe body is easy to leak welding or through welding and the like. The processing equipment for the inner container of the water heater comprises a first die, a first punch and first driving equipment. Through the arrangement, a first pipe body is formed between the side face of the first column body and the first side wall of the first forming groove, a first plug is formed between the end face of the first column body and the first bottom wall of the first forming groove, and the first plug and the first pipe body form a first liner body; repeating the above operations to obtain a second liner body with the same shape as the first liner body, and welding the first pipe body and the second pipe body to form the water heater liner; the water heater inner container processed by the water heater inner container processing equipment provided by the embodiment is only provided with one annular welding line, so that the sealing performance of the hot water inner container is improved.
Description
Technical Field
The invention belongs to the field of water heater processing equipment, and particularly relates to water heater liner processing equipment and a water heater liner.
Background
The water heater inner container is a place for heat exchange of the water heater, generally comprises a pipe body and end caps for sealing two ends of the pipe body, wherein the end caps are plates with a certain radian; during processing, the pipe body is formed by curling a rectangular plate, and two butted ends of the curled plate are connected in a welding mode so as to form a first welding line parallel to the central line of the pipe body on the pipe body; the plug is formed through stamping equipment, the stamping equipment comprises a die and a punch, the die is provided with a hemispherical forming groove, and the punch is hemispherical; during processing, a circular plate is placed on the die, the punch abuts against the plate, and then the plate is deformed and moves into the forming groove until the plate is attached to the forming groove, so that a plug is formed; during assembly, the plugs cover two ends of the pipe body and are connected with the pipe body in a welding mode so as to realize processing of the inner container of the water heater.
In the processing process of the water heater liner, an annular second welding line is formed between the plug and the pipe body, and the junction position of the first welding line and the second welding line on the pipe body is easy to have the defects of welding leakage or through welding and the like, so that the water heater liner is insufficient in sealing property.
Accordingly, there is a need in the art for a new water heater liner processing apparatus that addresses the above-mentioned problems.
Disclosure of Invention
In order to solve the above problems in the prior art, that is, to solve the problem that in the processing process of the liner of the water heater in the prior art, the pipe body itself has a first welding seam parallel to the central line of the pipe body, an annular second welding seam is formed between the plug and the pipe body, and the junction position of the first welding seam and the second welding seam on the pipe body is easy to have the defects of missing welding or through welding, and the like, which results in insufficient sealing performance of the liner of the water heater, an embodiment of the present invention provides a processing device of the liner of the water heater, which includes: the first die, the first punch and the first driving device; the first die is provided with a first forming groove, the first forming groove is provided with a first bottom wall and a first side wall, the first bottom wall is a curved surface, and the first side wall is a cylindrical surface; the first punch comprises a first cylinder, and the end face of the first cylinder is a curved surface protruding outwards; the first driving device is connected with the first cylinder to drive the first cylinder to extend into the first forming groove.
In the preferred technical solution of the above water heater liner processing apparatus, the water heater liner processing apparatus further comprises: the second die, the second punch and the second driving device; a second forming groove is formed in the second mold, the second forming groove is provided with a second bottom wall and a second side wall, the second bottom wall is a curved surface, and the second side wall is a cylindrical surface; the second punch comprises a second cylinder, and the end face of the second cylinder is an outward convex curved surface; the second driving device is connected with the second cylinder so as to drive the second cylinder to extend into the second forming groove; the first die and the first punch are used for machining a first liner body, and the second die and the second punch are used for machining a second liner body.
In the preferable technical scheme of the processing equipment for the inner container of the water heater, a first clamping groove is formed in the first die, and the first forming groove is formed in the bottom surface of the first clamping groove; and a second clamping groove is formed in the second die, and the second forming groove is formed in the bottom surface of the second clamping groove.
In the preferred technical scheme of the water heater liner processing equipment, the water heater liner processing equipment further comprises a roller, a connecting rod, a rotating shaft and a rotating device, wherein the connecting rod is perpendicular to the rotating shaft, one end of the connecting rod is connected with the rotating shaft, the roller is arranged at the other end of the connecting rod, and the roller is rotatably connected with the connecting rod; the rotating device is in transmission connection with the rotating shaft so as to drive the rollers to roll on the inner walls of the first liner body and the second liner body.
In the preferable technical scheme of the processing equipment for the inner container of the water heater, the connecting rods are multiple and surround the rotating shafts at intervals, and each connecting rod is provided with the roller.
In the preferred technical scheme of the water heater liner processing equipment, the water heater liner processing equipment further comprises a laser emitter; the laser emitter is used for emitting laser to the inner walls of the first liner body and the second liner body.
In an optimized technical scheme of the water heater liner processing equipment, the water heater liner processing equipment further comprises a hole forming device, and the hole forming device is used for forming holes in the first liner body and the second liner body.
In a preferred embodiment of the above water heater liner processing apparatus, the hole forming device includes: the stamping device comprises a stamping block, a propping block and a telescopic mechanism, wherein the propping block is provided with a stamping groove with the same cross section shape as the stamping block, and the telescopic mechanism is used for driving the stamping block to stretch into the stamping groove.
In the preferable technical scheme of the water heater liner processing equipment, the water heater liner processing equipment further comprises an automatic circular seam welding machine, and the automatic circular seam welding machine is used for welding the first liner body and the second liner body.
The embodiment of the invention also provides a water heater liner, which is manufactured by the water heater liner processing equipment.
The technical scheme includes that the water heater liner processing equipment comprises a first die, a first punch and a first driving device. The first driving device can drive the first punch to extend into the first forming groove on the first die. Through the arrangement, when the first driving device drives the first punch to prop the plate in the first forming groove, a first pipe body is formed between the side face of the first cylinder and the first side wall of the first forming groove, a first plug is formed between the end face of the cylinder and the first bottom wall of the first forming groove, and the first plug and the first pipe body form a first liner body; repeating the operation to obtain a second liner body with the same shape as the first liner body, wherein one end of the first pipe body departing from the first plug is welded with one end of the second pipe body departing from the second plug to form the water heater liner; compared with the method that the pipe body is curled by a rectangular plate, and then the plugs are respectively welded at the two ends of the pipe body, the water heater liner processed by the water heater liner processing equipment provided by the embodiment only has one annular welding line, so that the first welding line and the second welding line on the water heater liner are prevented from being crossed; thereby improving the sealing performance of the hot water liner.
Drawings
Preferred embodiments of the water heater liner processing apparatus of the present invention are described below with reference to the accompanying drawings in conjunction with a water heater liner. The attached drawings are as follows:
FIG. 1 is a schematic structural diagram of a water heater liner processing device provided by an embodiment of the invention;
fig. 2 is a schematic structural diagram of a first mold in the processing equipment for the inner container of the water heater provided by the embodiment of the invention;
fig. 3 is a schematic connection diagram of a roller, a connecting rod and a rotating shaft in the water heater liner processing equipment provided by the embodiment of the invention;
fig. 4 is a schematic structural diagram of a liner of a water heater provided by the implementation of the invention.
Description of reference numerals: 1: a first mold; 2: a second mold; 3: a first laser transmitter; 4: a second laser transmitter; 5: a first tapping means; 6: a second tapping means; 7: a third hole making device; 8: a first welding device; 9: a second welding device; 10: an automatic circular seam welding machine; 11: a detection cell; 12: a first liner body; 13: a roller; 14: a connecting rod; 15: a rotating shaft; 16: die change tracks; 17: changing a mould vehicle; 18: a second liner body; 101: a first side wall; 102: a first bottom wall; 103: a first card slot; 121: a first pipe body; 122: a first plug; 181: a second tube body; 182: a second plug; 19: and (4) a circular welding seam.
Detailed Description
First, it should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention. And can be adjusted as needed by those skilled in the art to suit particular applications. For example, although the water heater liner processing apparatus of the present invention is described in connection with water heater liner processing, this is not intended to be limiting and other scenarios having liner processing requirements may be configured with the water heater liner processing apparatus of the present invention.
Next, it should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "inside", "outside", and the like are based on the direction or positional relationship shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or member must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The water heater usually comprises a heating pipe and a water heater liner, wherein the water heater liner is used for containing water, the heating pipe is arranged in the water heater liner, and the heating pipe is used for heating the water in the water heater liner; specifically, the heating tube may include a heating wire and a tube body wrapping the heating wire, and the heating wire is connected to the tube body in an insulating manner; when the electric heating wire is electrified, the water in the inner container of the water heater is heated.
The inner container of the water heater is generally made of metal materials such as steel, aluminum alloy and the like; the water heater inner container comprises a pipe body and end caps positioned at two ends of the pipe body, wherein the end caps are used for plugging two ends of the pipe body to form a closed space so as to store water; the water inlet pipe is connected with the water inlet hole in a welding mode, and cold water can be injected into the inner container of the water heater through the water inlet pipe; similarly, the water outlet pipe is arranged in the water outlet hole in a penetrating mode and is connected with the pipe body in a welding mode so as to discharge hot water in the inner container of the water heater through the water outlet pipe.
The following describes a preferred technical scheme of the water heater inner container processing equipment in combination with the water heater inner container.
Referring to fig. 1 to 4, fig. 1 is a schematic structural diagram of a water heater liner processing device according to an embodiment of the present invention, fig. 2 is a schematic structural diagram of a first mold in the water heater liner processing device according to the embodiment of the present invention, fig. 3 is a schematic connection diagram of a roller, a connecting rod, and a rotating shaft in the water heater liner processing device according to the embodiment of the present invention, and fig. 4 is a schematic structural diagram of a water heater liner according to the embodiment of the present invention. As shown in fig. 1-4, the processing equipment for the inner container of the water heater specifically comprises a first die 1, a first punch and a first driving device; a first forming groove is formed in the first die 1, the first forming groove is provided with a first bottom wall 102 and a first side wall 101, the first bottom wall 102 is a curved surface, and the first side wall 101 is a cylindrical surface; the first punch comprises a first cylinder, and the end surface of the first cylinder is a curved surface protruding outwards; the first driving device is connected with the first cylinder to drive the first cylinder to extend into the first forming groove.
In the embodiment, the cross section of the first forming groove is the same as that of the inner container of the water heater, and the depth of the first forming groove is equal to half of the length of the inner container of the water heater along the direction of the central line. The cross-sectional shape of the first cylinder is the same as that of the water heater liner, the cross-sectional area of the first cylinder is slightly smaller than that of the first forming groove, and the end face of the first cylinder is matched with the first bottom wall 102 of the first forming groove.
In this embodiment, the first driving device is configured to drive the first cylinder to move along a direction parallel to a center line of the first cylinder, so that the first cylinder is disposed in the first forming groove in a penetrating manner. Specifically, the first driving device may include a hydraulic cylinder, a center line of a piston rod of the hydraulic cylinder is arranged in parallel with a center line of the first column, and a piston rod of the hydraulic cylinder is connected with the first column to drive the first column to move through the piston rod of the hydraulic cylinder; of course, the first driving device in this embodiment may further include a driving screw, an axis of the driving screw is parallel to a central line of the first cylinder, a driving nut matched with the driving screw is disposed on the first cylinder, and the driving nut and the first cylinder are driven to move along a direction parallel to the central line of the first cylinder by driving the driving screw to rotate.
The use process of the water heater inner container processing equipment provided by the embodiment is as follows: placing a circular plate on a first die 1, and then driving a first cylinder to move towards the first die 1 through a first driving device so that the end face of a first punch is in contact with the middle of the plate; and then, continuously driving the first cylinder to move towards the first mold 1 until the first cylinder is arranged in the first forming groove in a penetrating manner, and attaching part of the plate to the first bottom wall 102 of the first forming groove. In the process, the plate is extruded by the first cylinder, so that a first liner body 12 with the same shape as the gap between the first cylinder and the first forming groove is formed; the first container 12 includes a first tube 121 and a first plug 122 located at the end of the first tube 121. Repeating the above operations to form a second liner 18 having the same shape as the first liner 12, wherein the second liner 18 comprises a second tube 181 and a second plug 182 at the end of the second tube 181; the head end of the first container body 12 is butted with the head end of the second container body 18, and the first container body 12 and the second container body 18 are connected in a welding mode, so that an annular welding seam 19 is formed between the first container body 12 and the second container body 18, and a closed water heater inner container is formed.
With continued reference to fig. 1, in this embodiment, preferably, the processing equipment for the liner of the water heater further includes: a second die 2, a second punch and a second driving device; a second forming groove is formed in the second mold 2, the second forming groove is provided with a second bottom wall and a second side wall, the second bottom wall is a curved surface, and the second side wall is a cylindrical surface; the second punch comprises a second cylinder, and the end face of the second cylinder is an outward convex curved surface; the second driving device is connected with the second cylinder to drive the second cylinder to extend into the second forming groove; the first die 1 and the first punch are used for processing the first liner body 12, and the second die 2 and the second punch are used for processing the second liner body 18. While the first liner body 12 is being processed by the first die 1, the first punch and the first drive device, the second liner body 18 can be processed by the second die 2, the second punch and the second drive device; after the first liner body 12 and the second liner body 18 are processed at the same time, the first liner body 12 and the second liner body 18 are assembled into a water heater liner; compared with the processing of the first and second liner bodies 12, 18 only by means of the first die 1, the first punch and the first drive device, the processing rate is increased.
According to the processing equipment for the inner container of the water heater, the first forming groove is formed in the first die 1 and is provided with the first bottom wall 102 and the first side wall 101, the first bottom wall 102 is a curved surface, and the first side wall 101 is a cylindrical surface; the first punch comprises a first cylinder, and the end surface of the first cylinder is a curved surface protruding outwards; when the first driving device drives the first cylinder to prop against the plate in the first forming groove, a first pipe 121 is formed between the side surface of the first cylinder and the first side wall 101 of the first forming groove, a first plug 122 is formed between the end surface of the first cylinder and the first bottom wall 102 of the first forming groove, and the first plug 122 and the first pipe 121 form a first liner 12; repeating the above operations to obtain a second liner 18 with the same shape as the first liner 12, wherein the end of the first pipe 121 departing from the first plug 122 is welded with the end of the second pipe 181 departing from the second plug 182 to form the inner container of the water heater; compared with the method that the pipe body is curled by a rectangular plate, and then the plugs are respectively welded at the two ends of the pipe body, the water heater liner processed by the water heater liner processing equipment provided by the embodiment only has one annular welding line 19, so that the first welding line and the second welding line on the water heater liner are prevented from being crossed; thereby improving the sealing performance of the hot water liner.
With continued reference to fig. 1, preferably, in the present embodiment, the first mold 1 and the second mold 2 are disposed opposite to each other, and a robot arm is disposed near each of the first mold 1 and the second mold 2, so that the circular plate material is placed on the first mold 1 and the second mold 2 by the robot arm.
With continued reference to fig. 1, further, a mold changing carriage 17 and a mold changing rail 16 are provided between the first mold 1 and the second mold 2, a center line of the mold changing rail 16 is perpendicular to a line connecting the first mold 1 and the second mold 2, and the mold changing carriage 17 is engaged with the mold changing rail 16 so that the mold changing carriage 17 can move on the mold changing rail 16. When the first mold 1 and the second mold 2 are replaced, the first mold 1 and the second mold 2 can be placed on the mold changing trolley 17, and then the mold changing trolley 17 moves along the mold changing rail 16, so that the first mold 1 and the second mold 2 are conveyed.
With reference to fig. 2, in this embodiment, the first mold 1 is provided with a first clamping groove 103, and the first forming groove is disposed on a bottom surface of the first clamping groove 103; and a second clamping groove is formed in the second die 2, and a second forming groove is formed in the bottom surface of the second clamping groove. During processing, the circular plate is placed in the first clamping groove 103, and the first clamping groove 103 can prevent the circular plate from moving so as to prevent the circular plate from moving when the first punch contacts the circular plate and further influence the processing precision of the first liner 12. Similarly, place circular panel in the second draw-in groove, the second draw-in groove can prevent circular panel and remove to circular panel removes when second drift and circular panel contact, and then influences the machining precision of second courage body 18.
Continuing to refer to fig. 3, in this embodiment, the processing equipment for the water heater liner further includes a roller 13, a connecting rod 14, a rotating shaft 15 and a rotating device, the connecting rod 14 is perpendicular to the rotating shaft 15, one end of the connecting rod 14 is connected with the rotating shaft 15, the roller 13 is disposed at the other end of the connecting rod 14, and the roller 13 is rotatably connected with the connecting rod 14; the rotating device is in transmission connection with the rotating shaft 15 to drive the rollers 13 to roll on the inner walls of the first container body 12 and the second container body 18. During the rolling process of the roller 13, the roller 13 can flatten the wrinkles on the side wall of the first container body 12, so as to improve the dimensional accuracy of the first container body 12. Similarly, when the roller 13 rolls on the second container body 18, the folds on the side wall of the second container body 18 can be flattened to improve the dimensional accuracy of the second container body 18. The rotating device may be a motor or other device capable of rotating the rotating shaft 15.
Further, the connecting rod 14 is plural, the plural connecting rods 14 are arranged around the rotating shaft 15 at intervals, and each connecting rod 14 is provided with the roller 13. The rotating device can drive the rollers 13 to rotate around the axis of the rotating shaft 15 through the rotating shaft 15, and the rollers 13 can roll on the inner wall of the first liner body 12 or the inner wall of the second liner body 18 at the same time, so that the working efficiency is improved.
Preferably, a first roller, a first link, a first rotating shaft and a first rotating device are arranged at one side of the first die 1, so that after the first liner body 12 is formed by the first die 1 and the first punch, the first link and the first roller are inserted into the first liner body 12, and the axis of the first rotating shaft is arranged in line with the center line of the first liner body 12, and the first rotating device drives the first roller to roll on the inner wall of the first liner body 12, so as to flatten wrinkles on the inner wall of the first liner body 12.
Similarly, a second roller, a second connecting rod, a second rotating shaft and a second rotating device are arranged on one side of the second die 2, so that after the second liner 18 is formed by the second die 2 and the second punch, the second connecting rod and the second roller are inserted into the second liner 18, the axis of the second rotating shaft and the center line of the second liner 18 are arranged in a collinear manner, and the second rotating device drives the second roller to roll on the inner wall of the second liner 18, so that wrinkles on the inner wall of the second liner 18 are flattened.
Specifically, the water heater inner bag processing equipment that this embodiment provided can also include cutting equipment, and cutting equipment is used for getting rid of the burr of first courage body 12 and the 18 head ends of second courage body, and is exemplary, and cutting equipment can include the emery wheel and the motor of being connected with grinding wheel transmission, and the motor drives the emery wheel and rotates, can get rid of the burr of first courage body 12 and the 18 head ends of second courage body.
In this embodiment, the water heater liner processing equipment further comprises a laser emitter; the laser emitter is used for emitting laser to the inner walls of the first liner body 12 and the second liner body 18. When the laser emitted by the laser emitter irradiates the inner walls of the first liner body 12 and the second liner body 18, the temperature of the irradiated area can be raised, and then the oil stains attached to the irradiated area are combusted or gasified, so that the oil stains on the inner walls of the first liner body 12 and the second liner body 18 are removed. In addition, the laser can also remove rust on the inner walls of the first container body 12 and the second container body 18.
Preferably, the laser emitter comprises a first laser emitter 3 and a second laser emitter 4 which are oppositely arranged, and the first laser emitter 3 is positioned at one side of the first mold 1 to irradiate the inner wall of the first liner body 12; the second laser emitter 4 is positioned at one side of the second mold 2 to irradiate the inner wall of the second bladder body 18.
In this embodiment, the processing equipment for the liner of the water heater further comprises a hole forming device, and the hole forming device is used for forming holes in the first liner body 12 and the second liner body 18. The hole-opening device can be provided with a water inlet hole and a water outlet hole on the first liner body 12 and the second liner body 18 so as to be convenient for installing a water inlet pipe and a water outlet pipe.
Specifically, the tapping device may include a drill bit, and the drill bit may be driven to rotate to drill the first and second container bodies 12 and 18.
Preferably, the hole forming device includes: the stamping device comprises a stamping block, a propping block and a telescopic mechanism, wherein a stamping groove with the same cross section shape as the stamping block is formed in the propping block, and the telescopic mechanism is used for driving the stamping block to stretch into the stamping groove. The first liner body 12 and the second liner body 18 are punched in a punching mode, and the processing is convenient and time-saving.
Specifically, during punching, the abutting block is firstly abutted against the inner wall of the first container body 12, then the telescopic mechanism drives the punching block to move towards the outer wall of the first container body 12, and the side wall corresponding to the punching groove can be removed under the shearing action of the punching block and the punching groove, so that a hole is formed.
In particular, the telescopic mechanism may comprise a hydraulic or pneumatic cylinder; of course, the telescoping mechanism may also include an electric push rod or the like capable of driving the punch block to extend into the punch groove.
With continued reference to fig. 1, preferably, the tapping device includes a first tapping device 5 and a second tapping device 6 disposed on the same side as the first mold 1, the first tapping device 5 is used for forming a mounting hole on the first plug 122, and the heating pipe is placed into the inner container of the water heater through the mounting hole; the second hole-forming device 6 is used for forming a water inlet hole on the first pipe body 121.
With continued reference to fig. 1, further, the hole forming device further includes a third hole forming device 7 disposed on the same side as the second mold 2, and the third hole forming device 7 is configured to form a water outlet hole on the second pipe 181. Specifically, a magnesium rod is arranged in the inner container of the water heater so as to prevent the inner container of the water heater or other metal devices from being rusted; correspondingly, a magnesium rod mounting hole can be formed in the second liner body 18 through the third hole forming device 7, and the magnesium rod is mounted on the water heater liner through the magnesium rod mounting hole.
Specifically, an installation flange is arranged on the first liner body 12 outside the installation hole, and the heating pipe extends into the inner liner of the water heater from the installation hole and then is connected with the installation flange so as to fix the heating pipe on the inner liner of the water heater. Correspondingly, a first welding device 8 is arranged on the same side of the first mold 1, and the first welding device 8 is used for welding the mounting flange on the first container body 12.
Specifically, a lifting lug is arranged on the second liner body 18 so as to facilitate the lifting and transportation of the water heater liner. Correspondingly, a second welding device 9 is arranged on the same side of the second die 2, and the second welding device 9 is used for welding the lifting lug on the second container body 18.
It should be noted that the first welding device 8 and the second welding device 9 each include a welding gun, and welding can be performed by holding the welding guns with the hands of a worker. Of course, the first welding device 8 and the second welding device 9 may also comprise a robot arm, which holds the welding gun to realize automatic welding by the robot arm.
In this embodiment, the processing equipment for the water heater liner further comprises an automatic circular seam welding machine 10, and the automatic circular seam welding machine 10 is used for forming a welding seam between the first liner body 12 and the second liner body 18. The welding between the head ends of the first liner body 12 and the second liner body 18 is realized through the automatic circular seam welding machine 10, manual operation is not needed, and time and labor are saved.
Specifically, the automatic circular seam welding machine 10 is a general automatic welding device capable of performing various circular and circular seam welds. For example, the automatic girth welding machine 10 may include a first clamping disk that clamps the first liner 12, a second clamping disk that clamps the second liner 18, and a welding gun, where the first and second clamping disks may rotate around the center line of the water heater liner; during the use, welder welds first courage body 12 and second courage body 18, and first centre gripping dish and second centre gripping dish drive first courage body 12 and second courage body 18 simultaneously rotate to form the annular welding seam on the hot water ware inner bag.
Preferably, before the first liner body 12 and the second liner body 18 are welded by the automatic circular seam welding machine 10, the first liner body 12 and the second liner body 18 may be pre-installed, that is, a plurality of welding points are formed on the first liner body 12 and the second liner body 18 at intervals by a spot welding machine, so as to prevent the first liner body 12 and the second liner body 18 from moving relatively when the automatic circular seam welding machine 10 welds the first liner body 12 and the second liner body 18, so as to improve the installation accuracy of the first liner body 12 and the second liner body 18.
Specifically, the processing equipment for the inner container of the water heater provided by the embodiment further comprises an air supply device, a detection pool 11 and detection liquid filled in the detection pool 11, wherein the air supply device is used for supplying air to the inner container of the water heater; the inner container of the water heater is soaked in the detection liquid. After the first liner body 12 and the second liner body 18 are assembled into the water heater liner by the automatic circular seam welding machine 10, the gas supply device is used for injecting gas into the water heater liner, the water heater liner is soaked in detection liquid, and whether the water heater liner leaks or not is determined by observing whether the detection liquid contains bubbles or not; and further realize the detection of the air tightness of the inner container of the water heater.
Preferably, the gas supply means can be various, as long as it is able to inject gas into the water heater bladder, for example: the air supply device can comprise an air pump which is communicated with the inner container of the water heater through an air duct so as to inject air into the inner container of the water heater; or the gas supply device comprises a nitrogen bottle which is communicated with the inner container of the water heater through a gas guide pipe so as to inject nitrogen into the inner container of the water heater. It is worth to say that, gas can be injected through the water inlet hole of the water heater liner, and correspondingly, other holes of the water heater liner need to be plugged. The detection fluid may be water, oil or other fluid.
In an implementation manner, the first die 1 and the second die 2 are arranged at intervals, and a first laser emitter 4, a first hole forming device 5, a second hole forming device 9 and a first welding device 8 are sequentially arranged along a direction perpendicular to a connecting line of the first die 1 and the second die 2 and on the same side of the first die 1; and a mechanical arm is arranged between two adjacent devices, so that the first liner body 12 on the above device is transferred to the next device by the mechanical arm, and the whole first liner body 12 is processed. A second laser emitter 4, a third perforating device 7 and a second welding device 9 are sequentially arranged along the direction vertical to the connecting line of the first die 1 and the second die 2 and on the same side of the second die 2; and a mechanical arm is arranged between two adjacent devices, so that the second liner 18 on the previous device is transferred to the next device by the mechanical arm, and the whole second liner 18 is processed. The automatic circular seam welding machine 10 is arranged at the rear part of the first welding device 8 and the second welding device 9 to weld the first liner body 12 and the second liner body 18 to form a circular welding seam 19. Preferably, a plurality of automatic circular seam welding machines 10 can be arranged, a plurality of water heater inner containers can be welded at the same time, and the processing speed is improved.
In summary, the processing equipment for the inner container of the water heater in the embodiment of the invention comprises the first die 1, the first punch and the first driving equipment. The first driving device can drive the first punch to extend into the first forming groove of the first die 1. Through the arrangement, when the first driving device drives the first cylinder to prop against the plate in the first forming groove, a first pipe body 121 is formed between the side surface of the first cylinder and the first side wall 101 of the first forming groove, a first plug 122 is formed between the end surface of the first cylinder and the first bottom wall 102 of the first forming groove, and the first plug 122 and the first pipe body 121 form the first liner body 12; repeating the above operations to obtain a second liner 18 with the same shape as the first liner 12, wherein the end of the first pipe 121 departing from the first plug 122 is welded with the end of the second pipe 181 departing from the second plug 182 to form the inner container of the water heater; compared with the method that the pipe body is curled by a rectangular plate, and then the plugs are respectively welded at the two ends of the pipe body, the water heater liner processed by the water heater liner processing equipment provided by the embodiment only has one annular welding line, so that the first welding line and the second welding line on the water heater liner are prevented from being crossed; thereby improving the sealing performance of the hot water liner.
Continuing with fig. 1-4. In other embodiments, a water heater liner is also provided, and the water heater liner is manufactured by the water heater liner processing equipment.
The hot water liner comprises a first liner body 12 and a second liner body 18, wherein the first liner body 12 is manufactured by a first die 1 and a first punch through stamping, the second liner body 18 is manufactured by a second die 2 and a second punch through stamping, and the first liner body 12 and the second liner body 18 are welded.
The water heater liner of the embodiment of the invention comprises a first liner body 12 and a second liner body 18. The first liner 12 includes a first tube 121 and a first plug 122 located at the end of the first tube 121, the first tube 121 and the first plug 122 are manufactured by a first die 1 and a first punch through punching, that is, the first tube 121 and the first plug 122 are integrally formed; similarly, the second container 18 includes a second tube 181 and a second plug 182 at the end of the second tube 181, and the second tube 181 and the second plug 182 are formed by stamping the second mold 2 and a second punch, that is, the second tube 181 and the second plug 182 are integrally formed. Through the arrangement, the head end of the first pipe body 121 and the head end of the second pipe body 181 are welded to form the annular welding seam 19, and then the water heater liner can be assembled; compared with the method that a pipe body is curled by a rectangular plate, and then plugs are welded at two ends of the pipe body respectively, the water heater liner provided by the embodiment is only provided with one annular welding line 19, so that the first welding line and the second welding line on the water heater liner are prevented from being crossed; thereby improving the sealing performance of the hot water liner.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
Claims (8)
1. The utility model provides a water heater inner bag processing equipment which characterized in that includes: the first die, the first punch and the first driving device;
the first die is provided with a first forming groove, the first forming groove is provided with a first bottom wall and a first side wall, the first bottom wall is a curved surface, and the first side wall is a cylindrical surface;
the first punch comprises a first cylinder, and the end face of the first cylinder is a curved surface protruding outwards; the first driving device is connected with the first cylinder to drive the first cylinder to extend into the first forming groove;
the processing equipment for the water heater inner container further comprises a roller, a connecting rod, a rotating shaft and a rotating device, wherein the connecting rod is perpendicular to the rotating shaft, one end of the connecting rod is connected with the rotating shaft, the roller is arranged at the other end of the connecting rod, and the roller is rotatably connected with the connecting rod; the rotating device is in transmission connection with the rotating shaft so as to drive the roller to roll on the inner wall of the first liner body;
the connecting rods are arranged at intervals around the rotating shaft, and each connecting rod is provided with a roller;
the first die is provided with a first clamping groove, and the first forming groove is formed in the bottom surface of the first clamping groove.
2. The water heater liner processing apparatus of claim 1, further comprising: the second die, the second punch and the second driving device;
a second forming groove is formed in the second mold, the second forming groove is provided with a second bottom wall and a second side wall, the second bottom wall is a curved surface, and the second side wall is a cylindrical surface;
the second punch comprises a second cylinder, and the end face of the second cylinder is an outward convex curved surface; the second driving device is connected with the second cylinder so as to drive the second cylinder to extend into the second forming groove;
the first die and the first punch are used for machining a first liner body, and the second die and the second punch are used for machining a second liner body.
3. The processing equipment for the liner of the water heater according to claim 2, wherein a second clamping groove is formed in the second mold, and the second forming groove is formed in the bottom surface of the second clamping groove.
4. The water heater liner processing apparatus of claim 2, further comprising a laser emitter; the laser emitter is used for emitting laser to the inner walls of the first liner body and the second liner body.
5. The water heater liner processing apparatus as claimed in claim 2, further comprising a tapping device for tapping the first and second liner bodies.
6. The water heater liner processing apparatus as claimed in claim 5, wherein the hole forming device comprises: the stamping device comprises a stamping block, a propping block and a telescopic mechanism, wherein the propping block is provided with a stamping groove with the same cross section shape as the stamping block, and the telescopic mechanism is used for driving the stamping block to stretch into the stamping groove.
7. The water heater liner processing device according to claim 2, further comprising an automatic circular seam welding machine, wherein the automatic circular seam welding machine welds the first liner body and the second liner body.
8. A water heater liner, characterized in that, the water heater liner is made through the water heater liner processing equipment of any one of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910532228.8A CN112113338B (en) | 2019-06-19 | 2019-06-19 | Water heater inner container processing equipment and water heater inner container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910532228.8A CN112113338B (en) | 2019-06-19 | 2019-06-19 | Water heater inner container processing equipment and water heater inner container |
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| Publication Number | Publication Date |
|---|---|
| CN112113338A CN112113338A (en) | 2020-12-22 |
| CN112113338B true CN112113338B (en) | 2022-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910532228.8A Active CN112113338B (en) | 2019-06-19 | 2019-06-19 | Water heater inner container processing equipment and water heater inner container |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115431052A (en) * | 2022-09-05 | 2022-12-06 | 湖南省精一自动化有限公司 | Water heater inner bag welding rotary-cut integrated device and water heater inner bag production line |
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| CN112113338A (en) | 2020-12-22 |
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