Port forming equipment for water inlet pipe in gas water heater

By integrating the flaring, shrinking and forming stamping head to one stamping assembly, the problem of the gas water heater inlet pipe port processing requires two assembly and disassembly, and efficient port forming processing is achieved.

CN223145798UActive Publication Date: 2025-07-25GUANGDONG HENGREN ENERGY TECH CO LTD
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Patent Information

Application Number
CN202422359755.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-26
Publication Date
2025-07-25
Estimated Expiration
2034-09-26

AI Technical Summary

Technical Problem

The processing of the existing gas water heater water inlet pipe port requires two installations and disassembly, and the production efficiency is low.

Method used

The flared stamping head, a shrink stamping head and a forming stamping head are integrated into one stamping assembly, and the water inlet pipe is flared, shrunk and molded in turn through the same stamping drive device.

Benefits of technology

Improve production efficiency, no need to install and disassemble the water inlet pipe to be processed twice, significantly improving processing efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses port forming equipment for a water inlet pipe in a gas water heater, which comprises a positioning table provided with a V-shaped groove; a rear fixed-length block is arranged on the rear side of the V-shaped groove, the rear end of the water inlet pipe abuts against the surface of the rear fixed-length block, and the front end of the water inlet pipe protrudes out of the V-shaped groove. The downward pressing fixing assembly comprises a downward pressing air cylinder and a fixing piece, and the downward pressing air cylinder drives the fixing piece to do lifting motion so that the fixing piece can apply pressure to the water inlet pipe; the stamping assembly is located at the front end of the positioning table, and the stamping assembly comprises a stamping driving device, a flaring stamping head, a necking stamping head and a forming stamping head; the flaring punching head, the necking punching head and the forming punching head are integrated on one punching assembly, flaring, necking and final forming treatment are sequentially conducted on the water inlet pipe through the same punching driving device, the water inlet pipe to be machined does not need to be installed and disassembled twice, and production efficiency is high.
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Description

Technical Field

[0001] The utility model relates to the technical field of the necking processing of the mixing water pipe of a gas water heater, and particularly relates to a port forming device for the water inlet pipe in a gas water heater. Background Art

[0002] Copper pipes are corrosion-resistant, not easily oxidized, not prone to chemical reactions with some liquid substances, and easy to shape. They are the first choice for heating and cooling pipes, and are particularly widely used in the field of gas water heaters. For example, the water inlet pipe in a gas water heater is made of copper pipes. As Figure 1 shown, during the process of processing the copper pipe into a water inlet pipe, the port of the copper pipe needs to be flared, necked down, and finally convexly formed in sequence. In the existing production, a flaring and necking device is used to flare and neck down the port of the copper pipe in sequence in the way that the flaring punch head and the necking punch head are arranged radially, and the final convex forming part is completed by an independent stamping device. This requires two loading and unloading operations for the water inlet pipe, resulting in low production efficiency. Summary of the Invention

[0003] The main purpose of the utility model is to provide a port forming device for the water inlet pipe in a gas water heater, aiming to effectively solve at least one problem in the background art.

[0004] To achieve the above purpose, the technical solution of the utility model is as follows:

[0005] The utility model discloses a port forming device for the water inlet pipe in a gas water heater, including:

[0006] A positioning table, which has a V-shaped groove for placing the water inlet pipe; a rear fixed-length block is arranged at the rear side of the V-shaped groove, the rear end of the water inlet pipe abuts against the surface of the rear fixed-length block, and the front end of the water inlet pipe protrudes out of the V-shaped groove;

[0007] A downward pressing and fixing assembly, which includes a downward pressing air cylinder and a fixing member. The fixing member is located above the V-shaped groove, and the downward pressing air cylinder drives the fixing member to move up and down so that the fixing member presses on the water inlet pipe;

[0008] A stamping assembly, which is located at the front end of the positioning table. The stamping assembly includes a stamping driving device, a flaring punch head, a necking punch head, and a forming punch head; the flaring punch head, the necking punch head, and the forming punch head sequentially stamp on the water inlet pipe under the action of the stamping driving device.

[0009] Compared with the prior art, the utility model integrates a flaring punch, a necking punch and a forming punch onto a stamping assembly, and uses the same stamping driving device to successively perform flaring, necking and final forming on the water inlet pipe. It is not necessary to install and disassemble the water inlet pipe to be processed twice, and the production efficiency is high.

[0010] In a preferred embodiment, the stamping assembly further includes a base and a stamping seat; the stamping driving device includes a lifting electric cylinder and a stamping air cylinder; the stamping seat is vertically movably arranged on the base through a guide rail and a slider; the flaring punch, the necking punch and the forming punch are sequentially and spaced apart from top to bottom on the stamping seat; the lifting electric cylinder is fixedly installed on the base, and the lifting electric cylinder is drivingly connected to the stamping seat; the stamping air cylinder drives the base to make a reciprocating linear motion along the length direction of the water inlet pipe.

[0011] In a preferred embodiment, three grooves are provided on the stamping seat, which are respectively inserted with the flaring punch, the necking punch and the forming punch; threaded holes communicating with the grooves are provided on the surface of the stamping seat, and are connected with the threaded holes through screw fasteners, so that the end of the screw fastener abuts against the flaring punch or the necking punch or the forming punch in the groove.

[0012] In a preferred embodiment, the port forming device for the water inlet pipe in a gas water heater further includes a length positioning assembly, which is used for positioning the water inlet pipe in the front-back direction. The length positioning assembly includes a rear pushing assembly and a front blocking assembly. The rear pushing assembly includes the rear length positioning block and a rear pushing air cylinder. The rear length positioning block moves along the front-back direction under the drive of the rear pushing air cylinder to push the water inlet pipe onto the positioning table; the front blocking assembly includes a front blocking block and a front blocking air cylinder. The front blocking block is located between the positioning table and the stamping assembly, and the front blocking block makes a reciprocating motion along the radial direction under the drive of the front blocking air cylinder.

[0013] In a preferred embodiment, the port forming device for the water inlet pipe in a gas water heater further includes a lifting assembly, which is arranged below the V-shaped groove; the lifting assembly includes a lifting plate and a lifting air cylinder drivingly connected to the lifting plate. The lifting plate makes a reciprocating lifting motion under the drive of the lifting air cylinder; the bottom of the V-shaped groove is hollowed out so that the lifting plate can push out the water inlet pipe.

[0014] In a preferred embodiment, the lifting plate is inclined; an inclined slide plate and a material collecting basket are sequentially arranged on the downhill side of the lifting plate.

[0015] For better understanding and implementation, the following figure describes the present utility model in detail with reference to the accompanying drawings. Description of the Drawings

[0016] The accompanying drawings described herein are used to provide a further understanding of the present utility model and form a part of this application. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0017] Figure 1 It is an evolution diagram of the water inlet pipe after being processed by flaring, necking, and protruding forming in sequence;

[0018] Figure 2 It is a front view structural schematic diagram of a port forming device for the water inlet pipe in a gas water heater;

[0019] Figure 3 It is a side view structural schematic diagram (with some parts omitted) of a port forming device for the water inlet pipe in a gas water heater.

[0020] Description of reference numerals:

[0021] 1 - positioning table, 11 - V - shaped groove, 21 - lower pressing air cylinder, 22 - fixing part, 31 - flaring punch, 32 - necking punch, 33 - forming punch, 34 - base, 35 - punching seat, 351 - threaded hole, 36 - lifting electric cylinder, 37 - punching air cylinder, 51 - rear fixed - length block, 52 - rear pushing air cylinder, 53 - front stop block, 54 - front stop air cylinder, 61 - lifting plate, 62 - lifting air cylinder, 63 - inclined slide plate, 64 - material collecting basket, 7 - water inlet pipe, 7A - water inlet pipe after flaring treatment, 7B - water inlet pipe after flaring and necking treatment in sequence, 7C - water inlet pipe after flaring, necking, and protruding forming treatment in sequence. Detailed implementation manners

[0022] In order to better elaborate the present utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0023] It should be clear that the described embodiments are only a part of the embodiments of this application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope protected by the embodiments of this application.

[0024] The terms used in the embodiments of this application are only for the purpose of describing specific embodiments and are not intended to limit the embodiments of this application. The singular forms of "a", "the", and "said" used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0025] When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims. In the description of the present application, it should be understood that the terms "first", "second", "third", etc. are only used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence, nor can they be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0026] In addition, in the description of the present application, unless otherwise specified, "a plurality of" means two or more. "And / or" describes the association relationship of associated objects, indicating that there can be three relationships. For example, A - and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone - these three situations. The character " / " generally represents an "or" relationship between the associated objects before and after.

[0027] See Figure 2 and Figure 3 , the present utility model discloses a port forming device for the water inlet pipe in a gas water heater, including:

[0028] A positioning table 1 having a V-shaped groove for placing the water inlet pipe; a rear fixed-length block 51 is provided at the rear side of the V-shaped groove, the rear end of the water inlet pipe abuts against the surface of the rear fixed-length block 51, and the front end of the water inlet pipe protrudes out of the V-shaped groove.

[0029] A downward pressing and fixing component including a downward pressing cylinder 21 and a fixing member 22. The fixing member 22 is located above the V-shaped groove, and the downward pressing cylinder 21 drives the fixing member 22 to move up and down so that the fixing member 22 presses on the water inlet pipe.

[0030] A stamping component located at the front end of the positioning table 1. The stamping component includes a stamping driving device, a flaring stamping head 31, a necking stamping head 32, and a forming stamping head 33; the flaring stamping head 31, the necking stamping head 32, and the forming stamping head 33 sequentially stamp the water inlet pipe under the action of the stamping driving device.

[0031] Compared with the prior art, the present utility model integrates the flaring stamping head 31, the necking stamping head 32, and the forming stamping head into one stamping component, and sequentially performs flaring, necking, and final forming on the water inlet pipe with the same stamping driving device, without the need to install and disassemble the water inlet pipe to be processed twice, and has high production efficiency.

[0032] Specifically, the staff places the water inlet pipe on the V-shaped groove and makes the rear end of the water inlet pipe abut against the rear fixed-length block 51; then uses the pressing cylinder 21 to drive the fixing member 22 to descend, so that the fixing member 22 fixes the water inlet pipe; finally, the stamping driving device drives the flaring stamping head 31, the necking stamping head 32, and the forming stamping head 33 in sequence to perform flaring, necking, and forming processing on the water inlet pipe in sequence, and the water inlet pipe can be processed; after the water inlet pipe is processed, the pressing cylinder 21 drives the fixing member 22 to rise and reset, and the stamping driving device drives the flaring stamping head 31, the necking stamping head 32, and the forming stamping head 33 to reset.

[0033] Furthermore, the stamping assembly further includes a base 34 and a stamping seat 35; the stamping driving device includes a lifting electric cylinder 36 and a stamping cylinder 37; the stamping seat 35 is vertically movably arranged on the base 34 through a guide rail and a slider; the flaring stamping head 31, the necking stamping head 32, and the forming stamping head 33 are sequentially and spaced apart from top to bottom on the stamping seat 35; the lifting electric cylinder 36 is fixedly installed on the base 34, and the lifting electric cylinder 36 is drivingly connected to the stamping seat 35; the stamping cylinder 37 drives the base 34 to make a reciprocating linear movement along the length direction of the water inlet pipe. During stamping, the lifting electric cylinder 36 is responsible for moving the flaring stamping head 31, the necking stamping head 32, and the forming stamping head 33 to the corresponding height positions respectively to align with the water inlet pipe; the stamping cylinder 37 is responsible for moving the flaring stamping head 31, the necking stamping head 32, and the forming stamping head 33 at the corresponding heights towards the water inlet pipe to stamp the ports of the water inlet pipe to achieve the purposes of flaring, necking, and forming.

[0034] Furthermore, to facilitate the installation and disassembly of the flaring stamping head 31, the necking stamping head 32, and the forming stamping head 33 and facilitate later maintenance, three grooves are provided on the stamping seat 35, which are respectively inserted into the flaring stamping head 31, the necking stamping head 32, and the forming stamping head 33; a threaded hole 351 communicating with the groove is provided on the surface of the stamping seat 35, and is connected to the threaded hole 351 through a screw fastener, so that the end of the screw fastener abuts against the flaring stamping head 31 or the necking stamping head 32 or the forming stamping head 33 in the groove; through the insertion of the flaring stamping head 31, the necking stamping head 32, and the forming stamping head 33 into the three grooves respectively and the tightening and fixing of the screw fasteners located outside the stamping seat 35, while ensuring the accurate installation position of the flaring stamping head 31, the necking stamping head 32, and the forming stamping head 33, it is convenient for the installation and disassembly of the flaring stamping head 31, the necking stamping head 32, and the forming stamping head 33.

[0035] Further, the port forming device for the water inlet pipe in the gas water heater further includes a length fixing component, which is used to position the water inlet pipe in the front-rear direction. The length fixing component includes a rear pushing component and a front blocking component. The rear pushing component includes the rear length fixing block 51 and the rear pushing cylinder 52. The rear length fixing block 51 moves in the front-rear direction under the drive of the rear pushing cylinder 52 to push the water inlet pipe onto the positioning table 1. The front blocking component includes a front blocking block 53 and a front blocking cylinder 54. The front blocking block 53 is located between the positioning table 1 and the stamping component, and the front blocking block 53 reciprocates in the radial direction under the drive of the front blocking cylinder 54. Specifically, with the above structure, the length of the V-shaped groove can be extended, leaving the position behind for the staff to place the water inlet pipe, so that the pressing and fixing component can be staggered, improving the safety of the staff's operation. After the staff places the water inlet pipe into the V-shaped groove, the front blocking cylinder 54 drives the front blocking block 53 to move, so that the front blocking block 53 faces the V-shaped groove in the front-rear direction. Then the rear pushing cylinder 52 drives the rear length fixing block 51 to push forward, so that the front end of the water inlet pipe abuts against the front blocking block 53 and the rear end of the water inlet pipe abuts against the rear length fixing block 51, thereby fixing the position of the water inlet pipe in the front-rear direction to ensure the production quality of the water inlet pipe. After the water inlet pipe is positioned, the pressing cylinder 21 drives the fixing member 22 to press and fix the water inlet pipe, and the front blocking cylinder 54 drives the front blocking block 53 to reset, making room for the stamping component to stamp the water inlet pipe.

[0036] Further, the port forming device for the water inlet pipe in the gas water heater further includes a jacking component, which is arranged below the V-shaped groove. The jacking component includes a jacking plate 61 and a jacking cylinder 62 drivingly connected to the jacking plate 61. The jacking plate 61 makes a reciprocating lifting motion under the drive of the jacking cylinder 62. The bottom of the V-shaped groove is hollowed out so that the jacking plate 61 can jack out the water inlet pipe, facilitating the staff to take out the water inlet pipe.

[0037] Further, the jacking plate 61 is inclined. An inclined slide plate 63 and a collecting basket 64 are sequentially arranged on the downhill side of the jacking plate 61. After the jacking plate 61 jacks up the water inlet pipe too high, since the jacking plate 61 is inclined and the surface of the jacking plate 61 is a slope, the water inlet pipe will slide down along the surface of the jacking plate 61, pass through the inclined slide plate 63 on the way and then fall to the collecting basket 64, completing the automatic unloading work of the water inlet pipe.

[0038] The present invention is not limited to the above embodiments. If various modifications or deformations of the present invention do not depart from the spirit and scope of the present invention, and if these modifications and deformations fall within the scope of the claims of the present invention and equivalent technical scope, then the present invention also intends to include these modifications and deformations.

Claims

1. A port forming device for the water inlet pipe in a gas water heater, characterized in that Including: A positioning table having a V-shaped groove for placing a water inlet pipe; A rear fixed-length block is provided at the rear side of the V-shaped groove. The rear end of the water inlet pipe abuts against the surface of the rear fixed-length block, and the front end of the water inlet pipe protrudes out of the V-shaped groove; A downward pressing and fixing assembly including a downward pressing cylinder and a fixing member. The fixing member is located above the V-shaped groove, and the downward pressing cylinder drives the fixing member to move up and down to press the water inlet pipe; A stamping assembly located at the front end of the positioning table. The stamping assembly includes a stamping driving device, a flaring stamping head, a necking stamping head, and a forming stamping head. The flaring stamping head, the necking stamping head, and the forming stamping head sequentially stamp the water inlet pipe under the action of the stamping driving device; 2. The port forming device for the water inlet pipe in a gas water heater according to claim 1, wherein The stamping assembly further includes a base and a stamping seat; the stamping driving device includes a lifting electric cylinder and a stamping cylinder; The stamping seat is vertically movably arranged on the base through a guide rail and a slider; The flaring stamping head, the necking stamping head, and the forming stamping head are sequentially spaced apart from top to bottom on the stamping seat; The lifting electric cylinder is fixedly installed on the base and is drivingly connected to the stamping seat; the stamping cylinder drives the base to make a reciprocating linear movement along the length direction of the water inlet pipe; 3. The port forming device for the water inlet pipe in the gas water heater according to claim 2, characterized in that, Three grooves are provided on the stamping seat, corresponding to the flaring stamping head, the necking stamping head, and the forming stamping head for insertion respectively; Threaded holes communicating with the grooves are provided on the surface of the stamping seat. By connecting with the threaded holes through screw fasteners, the end of the screw fastener presses against the flaring stamping head or the necking stamping head or the forming stamping head in the groove; 4. The port forming device for the water inlet pipe in a gas water heater according to claim 1, characterized in that, It further includes a length positioning assembly for positioning the water inlet pipe in the front-back direction. The length positioning assembly includes a rear pushing assembly and a front blocking assembly. The rear pushing assembly includes the rear fixed-length block and a rear pushing cylinder. The rear fixed-length block moves in the front-back direction under the drive of the rear pushing cylinder to push the water inlet pipe onto the positioning table; the front blocking assembly includes a front blocking block and a front blocking cylinder. The front blocking block is located between the positioning table and the stamping assembly, and the front blocking block moves reciprocally in the radial direction under the drive of the front blocking cylinder; 5. The port forming device for the water inlet pipe in a gas water heater according to claim 1, characterized in that, It further includes a jacking assembly arranged below the V-shaped groove; the jacking assembly includes a jacking plate and a jacking cylinder drivingly connected to the jacking plate. The jacking plate makes a reciprocating up-and-down movement under the drive of the jacking cylinder; the bottom of the V-shaped groove is hollowed out so that the jacking plate jacks out the water inlet pipe; 6. The port forming device for the water inlet pipe in a gas water heater according to claim 5, characterized in that, The jacking plate is inclined; an inclined sliding plate and a receiving basket are sequentially arranged on the downhill side of the jacking plate.