CN110899528A - Closing device for water heater shell - Google Patents

Closing device for water heater shell Download PDF

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Publication number
CN110899528A
CN110899528A CN201911240004.6A CN201911240004A CN110899528A CN 110899528 A CN110899528 A CN 110899528A CN 201911240004 A CN201911240004 A CN 201911240004A CN 110899528 A CN110899528 A CN 110899528A
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CN
China
Prior art keywords
roller
base
guide rail
closing
plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN201911240004.6A
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Chinese (zh)
Inventor
邱刚
杨乃科
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Focus Intelligent Technology Co Ltd
Original Assignee
Qingdao Focus Intelligent Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qingdao Focus Intelligent Technology Co Ltd filed Critical Qingdao Focus Intelligent Technology Co Ltd
Priority to CN201911240004.6A priority Critical patent/CN110899528A/en
Publication of CN110899528A publication Critical patent/CN110899528A/en
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D41/00—Application of procedures in order to alter the diameter of tube ends
    • B21D41/04—Reducing; Closing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/003—Positioning devices

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Auxiliary Devices For Machine Tools (AREA)

Abstract

The invention provides a closing device for a water heater shell, which comprises: the engine base is arranged in the vertical direction, a first oil cylinder is fixedly arranged on the left side of the engine base, and the movable end of the first oil cylinder penetrates through the upper part of the engine base; the expansion tire is arranged on the right side of the base at intervals, is fixedly connected with the movable end of the first oil cylinder, and is used for receiving a cylindrical plate and inserting the cylindrical plate into the plate to expand the plate; the rotary closing-in component is rotatably arranged between the machine base and the expansion tire, is attached to the outer surface of the sheet material after the expansion tire is expanded and rotates on the surface of the sheet material, and realizes closing-in of the sheet material; the positioning block is fixedly arranged on the right side of the rotary closing-in component and positioned on the periphery of the expansion tire and used for positioning the sheet after the expansion tire is tensioned, so that the device has the advantages of avoiding distortion and scratching the surface of the sheet in the closing-in process of the sheet.

Description

Closing device for water heater shell
Technical Field
The invention belongs to the technical field of water heater shell production equipment, and particularly relates to a shell closing device for a water heater shell.
Background
At present, along with the improvement of living standard of people, more and more attention is paid to sanitation, in order to prevent the invasion of bacteria and viruses from causing diseases to human bodies, and the sanitation is more and more important for daily bathing, so that the water heater enters more people's family life and plays an important role, the shell of the water heater is mostly cylindrical, the shell of the water heater (shown in figure 1) is an indispensable part in the shells of the electric water heater and the solar water heater, the plate of the cylindrical water heater shell is fixed by a necking wheel commonly used by manufacturers, when the necking wheel is gradually contacted with the plate, the plate is twisted and scratches the surface of a workpiece are caused due to different contact friction forces on the inner side and the outer side of the plate, the quality is uncontrollable, the rhythm of automatic production is obviously not followed, the production cost of the product is continuously required to be reduced by many manufacturers, and the production efficiency is improved, under the background of enlarging the compatible range, designing a brand-new high-precision closing-in device becomes a problem which needs to be solved urgently by the industry.
Disclosure of Invention
The invention provides a closing device for a water heater shell, which solves the problems that in the prior art, a closing wheel can cause the distortion of a plate and scratch the surface of the plate.
The technical scheme of the invention is realized as follows: a binding off device for a water heater enclosure comprising:
the engine base is arranged in the vertical direction, a first oil cylinder is fixedly arranged on the left side of the engine base, and the movable end of the first oil cylinder penetrates through the upper part of the engine base;
the expansion tire is arranged on the right side of the base at intervals, is fixedly connected with the movable end of the first oil cylinder, and is used for receiving a cylindrical plate and inserting the cylindrical plate into the plate to expand the plate;
the rotary closing-in component is rotatably arranged between the machine base and the expansion tire, is attached to the outer surface of the sheet material after the expansion tire is expanded and rotates on the surface of the sheet material, and realizes closing-in of the sheet material;
and the positioning block is fixedly arranged on the right side of the rotary closing-in component and positioned on the periphery of the expansion tire and used for positioning the plate after the expansion tire is expanded.
The device can be symmetrically arranged in the left and right directions, the plate after rounding forms a cylinder shape and is conveyed to the closing devices, so that the plate is positioned between the closing devices at the left side and the right side, the expansion tire in each closing device is inserted into the plate, then the expansion tire is opened to be tightly attached to the inner wall of the plate and tightly stretch the plate, the two ends of the plate are respectively tightly stretched by the expansion tire, the positioning blocks are positioned at the periphery of the expansion tire, after the plate is tightly stretched by the expansion tire, the position of the plate is determined through the positioning blocks, namely the plate is positioned between the positioning blocks and the expansion tire, after the positioning blocks determine the position of the plate, the rotary closing components are attached to the outer surface of the plate and rotate on the outer surface of the plate, closing of the two ends of the plate is realized, in the process, because the expansion tire can tightly stretch the plate, the plate is closed by the rotary closing components, although the rotary closing-in assembly can rotate between the machine base and the expansion tire, the expansion tire expands the plate, the plate cannot move along with the expansion tire in the rotating process of the rotary closing-in assembly and cannot twist the surface of the plate, and only the rotary closing-in assembly rotates on the surface of the plate, so that the surface of the plate cannot be scratched.
As a preferred embodiment, the front side and the rear side of the bottom of the machine base are respectively and fixedly provided with a first guide rail, the machine base is arranged on other devices through the first guide rails and can be matched with other devices, so that the closing device can adapt to plates with different lengths, the adaptability of closing in is improved, the front side and the rear side of the left end of the machine base are respectively and symmetrically and fixedly provided with a first baffle, the first oil cylinder is positioned between the first baffles on the front side and the rear side and is respectively arranged at intervals with the first baffles on the front side and the rear side, the first baffle can protect the first oil cylinder, and impurities are prevented from influencing the work of the first oil cylinder.
As a preferred embodiment, a first roller and a second roller are fixedly arranged on the right side wall of a machine base in sequence from top to bottom, the first roller and the second roller are arranged at intervals, a transmission belt covers the surfaces of the first roller and the second roller, the left side of a rotary closing-in component is fixedly connected with the right side of the first roller, a motor is arranged at the lower end of the machine base, a rotating shaft of the motor penetrates through the machine base and is fixedly connected with the second roller, the second roller is driven to rotate by the rotating shaft of the motor, the transmission belt and the first roller are driven to rotate by the rotation of the second roller, and the left side of the rotary closing-in component is fixedly connected with the right side of the first roller, so that the rotary closing-in component is driven to rotate in the rotating process of the first roller, the rotary closing-in component can rotate on the surface of the sheet to close the sheet, the closing-in work efficiency of the sheet closing-in is improved, and, the condition that the surface of the plate is distorted is avoided, and the quality of the plate after the closing is improved.
As a preferred embodiment, the front side and the rear side between the first roller and the second roller are respectively and fixedly provided with a third roller, the transmission belt is arranged in contact with the third roller, the diameter of the first roller is larger than that of the second roller, the third rollers are respectively positioned below the front side and the rear side of the first roller, and the left side and the right side of the transmission belt are limited by the third rollers, so that the situation of deviation in the transmission process of the transmission belt is avoided.
As a preferred embodiment, the rotary closing-in assembly comprises a rotary base, the rear side of the rotary base and the machine base are arranged at intervals, a second oil cylinder is fixedly arranged at the upper end of the right side of the rotary base, a second guide rail is arranged below the second oil cylinder, the second guide rail is fixedly arranged on the rotary base, a first strip-shaped base is arranged in the second guide rail in a sliding manner, a closing-in wheel is rotatably arranged at the lower end of the first base, a third guide rail is fixedly arranged at the upper part of the first base, a first pressing wheel is slidably arranged in the third guide rail, the top of the first pressing wheel is rotatably connected with the movable end of the second oil cylinder, the surface of the first pressing wheel is in contact with the surface of the closing-in wheel, a third oil cylinder is fixedly arranged at the lower end of the right side of the rotary base, a fourth guide rail is arranged above the third oil cylinder, the fourth guide rail is fixedly arranged on the, the lower end of the second base is rotatably provided with a forming wheel, the upper part of the second base is fixedly provided with a fifth guide rail, a second pinch roller is arranged in the fifth guide rail in a sliding manner, the top of the second pinch roller is rotatably connected with the movable end of a second oil cylinder, the surface of the second pinch roller is arranged in contact with the surface of the forming wheel, in the rotating process of the rotary closing-up component, the movable end of the second oil cylinder moves downwards to drive the first pinch roller to move downwards, the movable end of a third oil cylinder moves upwards to drive the second pinch roller to move upwards, in the process, the first pinch roller and the second pinch roller respectively move relatively in the third pinch roller and the fifth guide rail to drive the first base and the second base to move relatively and move to the expanded tire, and as the first pinch roller is in contact with the closing-up wheel, the second pinch roller is in contact with the forming wheel, the closing-up wheel and the forming wheel move to the surface of the expanded tire, in the rotating process of the rotating seat, the closing-up wheel and the forming wheel respectively move on the surface of the plate, closing-up of the plate is achieved around the surface of the plate for a circle, and the working efficiency of closing-up of the plate can be improved conveniently in the process.
As a preferred embodiment, the position of the first pressing wheel, the position of the second pressing wheel, the position of the closing-up wheel and the position of the forming wheel are all on the same straight line, so that the closing-up wheel and the forming wheel can rotate on the surface of the plate more accurately, and the closing-up efficiency of the plate is improved.
As a preferred embodiment, the four positioning blocks are uniformly distributed on the periphery of the expansion tire, wherein the positioning blocks above the expansion tire are respectively arranged on the front side and the rear side of the second guide rail at intervals, so that the positioning of the plate can be realized in multiple directions, and the plate positioning is more accurate.
As a preferred embodiment, the right side of the machine base is fixedly provided with a second baffle which is in the shape of a right triangle, one right-angle side of the second baffle is fixedly connected with the machine base, the other right-angle side of the second baffle is flush with the bottom of the machine base, and the impurities entering the second roller can be reduced by blocking the second baffle, so that the influence on the rotation of the second roller is avoided.
After the technical scheme is adopted, the invention has the beneficial effects that:
1. in the process of closing the sheet material by rotating the rotary closing-in assembly, the sheet material cannot move along with the rotary closing-in assembly, so that the surface of the sheet material is prevented from being distorted;
2. in the process of closing the plate, only the rotary closing-in assembly rotates on the surface of the plate, so that the surface of the plate cannot be scratched.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a rear side structure view of fig. 1.
In the figure, 1-stand; 2-expanding the tire; 3-rotating the closing-in assembly; 4-positioning blocks; 11-a first oil cylinder; 12-a first guide rail; 13-a first baffle; 14-a first roller; 15-a second roller; 16-a transmission belt; 17-a motor; 18-a third roller; 19-a second baffle; 31-a rotating base; 32-a second oil cylinder; 33-a second guide rail; 34-a third oil cylinder; 35-a fourth guide rail; 331-a first base; 332-closing-in wheel; 333-a third guide rail; 334-a first pinch roller; 351-a second base; 352-a forming wheel; 353-a fifth guide rail; 354-second pinch roller.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 2, a necking device for a water heater shell comprises:
the engine base 1 is arranged in the vertical direction, a first oil cylinder 11 is fixedly arranged on the left side of the engine base 1, and the movable end of the first oil cylinder 11 penetrates through the upper part of the engine base 1;
the expansion tires 2 are arranged on the right side of the base 1 at intervals, are fixedly connected with the movable end of the first oil cylinder 11, and are used for receiving cylindrical plates and inserting the cylindrical plates into the plates to expand the plates;
the rotary closing-in component 3 is rotatably arranged between the machine base 1 and the expansion tire 2, is attached to the outer surface of the sheet material after the expansion tire 2 is expanded and rotates on the surface of the sheet material, and realizes closing-in of the sheet material;
the positioning block 4 is fixedly arranged on the right side of the rotary closing-in component 3 and positioned on the periphery of the expanding tire 2 and is used for positioning the plate after the expanding tire 2 is expanded;
the machine base 1, the first oil cylinder 11, the expanding tire 2, the rotary closing-in component 3 and the positioning block 4 are all electrically connected with an external control system.
The device can be symmetrically arranged in the left and right directions, the plate after rounding forms a cylinder shape and is conveyed to the closing devices, so that the plate is positioned between the closing devices at the left and right sides, the expansion tire 2 in each closing device is inserted into the plate, then the expansion tire 2 is opened to be tightly attached to the inner wall of the plate and tightly expand the plate, the two ends of the plate are respectively and tightly expanded by the expansion tire 2, the positioning block 4 is positioned at the periphery of the expansion tire 2, after the plate is tightly expanded by the expansion tire 2, the position of the plate is determined by the positioning block 4, namely the plate is positioned between the positioning block 4 and the expansion tire 2, after the positioning block 4 determines the position of the plate, the rotary closing component 3 is attached to the outer surface of the plate and rotates on the outer surface of the plate, closing of the two ends of the plate is realized, in the process, because the expansion tire 2 can tightly expand the plate, the plate is closed, so that in the process of, although the rotary closing-in component 3 can rotate between the machine base 1 and the expansion tire 2, the sheet material is tensioned by the expansion tire 2, the sheet material cannot move along with the rotary closing-in component 3 in the rotating process, the surface of the sheet material cannot be distorted, and the surface of the sheet material cannot be scratched because only the rotary closing-in component 3 rotates on the surface of the sheet material.
The front side and the rear side of the bottom of the machine base 1 are respectively and fixedly provided with a first guide rail 12, the machine base is mounted on other devices through the first guide rails 12 and can be matched with other devices, so that the closing device can adapt to plates of various different lengths, the adaptability of closing in is improved, the front side and the rear side of the left end of the machine base 1 are respectively and symmetrically and fixedly provided with a first baffle 13, the first oil cylinder 11 is positioned between the first baffles 13 on the front side and the rear side and is respectively arranged at intervals with the first baffles 13 on the front side and the rear side, the first baffle 13 can protect the first oil cylinder 11, and impurities are prevented from influencing the work of the first oil cylinder.
The right side wall of the machine base 1 is fixedly provided with a first roller 14 and a second roller from top to bottom in sequence, the first roller 14 and the second roller are arranged at intervals, the surfaces of the first roller 14 and the second roller are covered with a transmission belt 16, the left side of the rotary closing-in component 3 is fixedly connected with the right side of the first roller 14, the lower end of the machine base 1 is provided with a motor 17, a rotating shaft of the motor 17 penetrates through the machine base 1 and is fixedly connected with the second roller, the rotating shaft of the motor 17 drives the second roller to rotate, the second roller rotates to drive the transmission belt 16 and the first roller 14 to rotate, because the left side of the rotary closing-in component 3 is fixedly connected with the right side of the first roller 14, the rotary closing-in component 3 is driven to rotate in the rotating process of the first roller 14, so that the rotary closing-in component 3 can rotate on the surface of the sheet material to close the sheet material, the closing, therefore, the sheet material can not move along with the rotating closing-up component 3 in the rotating process, the distortion of the surface of the sheet material is avoided, and the quality of the sheet material after closing-up is improved.
The front side and the rear side between the first roller 14 and the second roller are respectively and fixedly provided with a third roller 18, the transmission belt 16 is in contact with the third rollers 18, the diameter of the first roller 14 is larger than that of the second roller, the third rollers 18 are respectively positioned below the front side and the rear side of the first roller 14, the left side and the right side of the transmission belt 16 are limited through the third rollers 18, and the situation of deviation in the transmission process of the transmission belt 16 is avoided.
The rotary closing-in component 3 comprises a rotary seat 31, a second oil cylinder 32 is fixedly arranged at the upper end of the right side of the rotary seat 31, a second guide rail 33 is arranged below the second oil cylinder 32, the second guide rail 33 is fixedly arranged on the rotary seat 31, a first strip-shaped base 331 is arranged in the second guide rail 33 in a sliding manner, a closing-in wheel 332 is rotatably arranged at the lower end of the first base 331, a third guide rail 333 is fixedly arranged at the upper part of the first base 331, a first pressing wheel 334 is arranged in the third guide rail 333 in a sliding manner, the top of the first pressing wheel 334 is rotatably connected with the movable end of the second oil cylinder 32, the surface of the first pressing wheel 334 is in contact with the surface of the closing-in wheel 332, a third oil cylinder 34 is fixedly arranged at the lower end of the rotary seat 31 on the right side, a fourth guide rail 35 is arranged above the third oil cylinder 34, and the fourth guide rail 35 is fixedly arranged on the rotary, a second elongated base 351 is slidably arranged in the fourth guide rail 35, a forming wheel 352 is rotatably arranged at the lower end of the second base 351, a fifth guide rail 353 is fixedly arranged at the upper part of the second base 351, a second pinch roller 354 is slidably arranged in the fifth guide rail 353, the top of the second pinch roller 354 is rotatably connected with the movable end of the second oil cylinder 32, the surface of the second pinch roller 354 is in contact with the surface of the forming wheel 352, in the rotating process of the rotary closing-up assembly 3, the movable end of the second oil cylinder 32 moves downwards to drive the first pinch roller 334 to move downwards, the movable end of the third oil cylinder 34 moves upwards to drive the second pinch roller 354 to move upwards, in the process, the first pinch roller 334 and the second pinch roller 354 move relatively in the third pinch roller and the fifth guide rail 353 respectively, so as to drive the first base 331 and the second base 351 to move relatively to the expander 2, and because the first pinch roller 334 is in contact with the closing-up roller 332, the second pressing wheel 354 contacts with the forming wheel 352, so that the closing-up wheel 332 and the forming wheel 352 move to the surface of the sheet material tensioned by the expander 2, in the rotating process of the rotating base 31, the closing-up wheel 332 and the forming wheel 352 move on the surface of the sheet material respectively, closing-up of the sheet material is achieved around the periphery of the surface of the sheet material, and the working efficiency of closing-up of the sheet material can be improved conveniently in the process.
The position of the first pressing wheel 334, the position of the second pressing wheel 354, the position of the closing-up wheel 332 and the position of the forming wheel 352 are all on the same straight line, so that the closing-up wheel 332 and the forming wheel 352 can rotate on the surface of the plate more accurately, and the closing-up efficiency of the plate is improved. The four positioning blocks 4 are uniformly distributed on the periphery of the expanding tire 2, wherein the positioning blocks 4 positioned above the expanding tire 2 are respectively arranged on the front side and the rear side of the second guide rail 33 at intervals, so that the positioning of the plate can be realized in multiple directions, and the positioning of the plate is more accurate. The fixed second baffle 19 that is right triangle-shaped that is provided with in frame 1 right side, one of them right-angle side and frame 1 fixed connection of second baffle 19, the bottom parallel and level of another right-angle side and frame 1 through blockking of second baffle 19, can reduce the impurity that enters into second gyro wheel department, avoids causing the influence to the rotation of second gyro wheel.
The control process of the control system is as follows:
1. the control system controls a guide rail at the bottom of the base 1 to slide on other devices, then controls the first oil cylinder 11 to drive the expansion tire 2 to be inserted into a plate of the cylindrical water heater shell, then controls the expansion tire 2 to open in the plate, the end part of the plate is expanded, and the positioning block is fixedly arranged, so that the plate is expanded between the positioning block and the expansion tire 2;
2. the control system controls the motor to rotate, the second roller and the first roller 14 are driven to rotate, the rotating base 31 is driven to rotate, the second oil cylinder 32 and the third oil cylinder 34 on the rotating base 31 move relatively, so that the first pressing wheel 334 and the second pressing wheel 354 respectively press the closing-in wheel 332 and the forming wheel 352 on the surface of the sheet, and along with the rotation of the rotating base 31, the closing-in wheel 332 and the forming wheel 352 are driven to slide on the surface of the sheet to realize the closing-in process.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be interpreted broadly, and may be, for example, a mechanical connection or an electrical connection, a communication between two elements, a direct connection, or an indirect connection via an intermediate medium, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. A binding off device for a water heater enclosure, comprising:
the engine base is arranged in the vertical direction, a first oil cylinder is fixedly arranged on the left side of the engine base, and the movable end of the first oil cylinder penetrates through the upper part of the engine base;
the expansion tire is arranged on the right side of the base at intervals, is fixedly connected with the movable end of the first oil cylinder, and is used for receiving a cylindrical plate and inserting the cylindrical plate into the plate to expand the plate;
the rotary closing-in component is rotatably arranged between the machine base and the expansion tire, is attached to the outer surface of the sheet material after the expansion tire is expanded and rotates on the surface of the sheet material, and realizes closing-in of the sheet material;
and the positioning block is fixedly arranged on the right side of the rotary closing-in component and positioned on the periphery of the expansion tire and used for positioning the plate after the expansion tire is expanded.
2. A shell nosing device for a water heater according to claim 1 characterised in that the front and rear sides of the bottom of the base are respectively fixedly provided with first guide rails, the front and rear sides of the left end of the base are respectively and symmetrically fixedly provided with first baffles, and the first cylinder is located between the first baffles on the front and rear sides and is respectively spaced from the first baffles on the front and rear sides.
3. The shell nosing device for the water heater as claimed in claim 1, wherein the right side wall of the base is sequentially and fixedly provided with a first roller and a second roller from top to bottom, the first roller and the second roller are arranged at intervals, the surfaces of the first roller and the second roller are covered with a transmission belt, the left side of the rotary nosing assembly is fixedly connected with the right side of the first roller, the lower end of the base is provided with a motor, and a rotating shaft of the motor penetrates through the base and is fixedly connected with the second roller.
4. A shell nosing device for a water heater shell as claimed in claim 3, characterised in that a third roller is fixedly arranged between the first roller and the second roller at the front and back sides respectively, the belt is in contact with the third roller, the diameter of the first roller is larger than that of the second roller, and the third roller is arranged below the front and back sides of the first roller respectively.
5. The necking device for the shell of the water heater according to claim 3, wherein the rotary necking assembly comprises a rotary seat, the rear side of the rotary seat and the base are arranged at an interval, a second oil cylinder is fixedly arranged at the upper end of the right side of the rotary seat, a second guide rail is arranged below the second oil cylinder, the second guide rail is fixedly arranged on the rotary seat, a first elongated base is arranged in the second guide rail in a sliding manner, a necking wheel is rotatably arranged at the lower end of the first base, a third guide rail is fixedly arranged at the upper part of the first base, a first pinch roller is arranged in the third guide rail in a sliding manner, the top of the first pinch roller is rotatably connected with the movable end of the second oil cylinder, the surface of the first pinch roller is in contact with the surface of the necking wheel, and a third oil cylinder is fixedly arranged at the lower end of the right side of the rotary seat, the top of third hydro-cylinder is provided with the fourth guide rail, the fourth guide rail is fixed to be set up on the roating seat, it is provided with the second base of rectangular shape to slide in the fourth guide rail, the lower extreme of second base rotates and is provided with the forming wheel, the fixed fifth guide rail that is provided with in upper portion of second base, it is provided with the second pinch roller to slide in the fifth guide rail, the top of second pinch roller rotates with the expansion end of second hydro-cylinder to be connected, the surface of second pinch roller sets up with the surface contact of forming wheel.
6. A necking device for a water heater shell according to claim 5, wherein the position of the first pinch roller, the position of the second pinch roller, the position of the necking wheel and the position of the forming wheel are all on the same straight line.
7. A shell nosing device for a water heater shell as claimed in claim 1, characterised in that the locating blocks are provided with four and evenly distributed around the periphery of the expansion tyre, wherein the locating blocks above the expansion tyre are respectively arranged at intervals at the front and back sides of the second guide rail.
8. A shell nosing device for a water heater shell as claimed in claim 1 characterised in that a second baffle plate in the form of a right triangle is fixedly arranged on the right side of the base, one of the right-angled sides of the second baffle plate is fixedly connected to the base and the other right-angled side is flush with the bottom of the base.
CN201911240004.6A 2019-12-06 2019-12-06 Closing device for water heater shell Withdrawn CN110899528A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911240004.6A CN110899528A (en) 2019-12-06 2019-12-06 Closing device for water heater shell

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911240004.6A CN110899528A (en) 2019-12-06 2019-12-06 Closing device for water heater shell

Publications (1)

Publication Number Publication Date
CN110899528A true CN110899528A (en) 2020-03-24

Family

ID=69823207

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911240004.6A Withdrawn CN110899528A (en) 2019-12-06 2019-12-06 Closing device for water heater shell

Country Status (1)

Country Link
CN (1) CN110899528A (en)

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Application publication date: 20200324