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CN-114963505-B - Production process of water heater and water heater

CN114963505BCN 114963505 BCN114963505 BCN 114963505BCN-114963505-B

Abstract

S1, inserting a foaming adhesive tape into a shell of the water heater, and expanding the foaming adhesive tape through a shape follow-up device so as to enable the foaming adhesive tape to be attached to the side wall of a cavity formed between the shell and a cushion layer on an end cover of the water heater; S2, placing the inner container in the foaming adhesive tape and supporting the inner container on the cushion layer, and S3, injecting foaming materials between the foaming adhesive tape and the inner container for foaming. According to the production process of the water heater, the foaming adhesive tape is spread by the shape following device and is attached to the side wall of the cavity, so that the foaming material can fill the cavity by relying on the gravity action of the foaming adhesive tape, the phenomenon of a cavity is avoided, and the recess of the shell of the water heater is avoided. The water heater can avoid the cavity between the shell and the cushion layer, improves the overall strength of the water heater, and avoids the phenomenon that the shell is sunken due to collision.

Inventors

  • XU WEIPING
  • XIE JUZHI

Assignees

  • 青岛经济技术开发区海尔热水器有限公司
  • 海尔智家股份有限公司

Dates

Publication Date
20260508
Application Date
20210223

Claims (6)

  1. 1. The production process of the water heater is characterized by comprising the following steps of: s1, a foaming adhesive tape (2) is sleeved in a shell (1) of the water heater, and the foaming adhesive tape (2) is spread by a shape follow-up device (100), so that the foaming adhesive tape (2) is attached to the side wall of a cavity (5) formed between the shell (1) and a cushion layer (4) on an end cover (3) of the water heater; S2, placing the liner (6) in the foaming adhesive tape (2) and supporting the liner on the cushion layer (4); s3, injecting foaming materials between the foaming adhesive tape (2) and the inner container (6) for foaming; The shape following device (100) comprises a pressing piece, wherein the pressing piece extends into the foaming adhesive tape (2) from one end of the foaming adhesive tape (2) provided with an opening and moves along the axial direction of the shell (1) so as to press the foaming adhesive tape (2) into the cavity (5) and enable the foaming adhesive tape (2) to be attached to the side wall of the cavity (5); The pressing member includes: The connecting piece is of a circular ring structure and The arc-shaped pieces are arranged at intervals in the circumferential direction of the connecting piece, so that the arc-shaped pieces are spliced to form a discontinuous annular structure.
  2. 2. The production process of the water heater according to claim 1, wherein in step S1, the foaming tape (2) is attached to the entire inner wall of the housing (1) in the axial direction thereof.
  3. 3. The process for producing a water heater according to claim 1, wherein said shape-following device (100) further comprises: and the output end of the driving device is connected with the pressing piece and drives the pressing piece to move along the axial direction of the shell (1).
  4. 4. A process for the production of a water heater according to any one of claims 1 to 3, characterized in that the form-following device (100) is taken out of the housing (1) before the liner (6) is placed in the foam tape (2).
  5. 5. A production process of a water heater according to any one of claims 1-3, wherein in step S2, an end cap of the housing (1) not provided with the end cap (3) is provided with a cover plate, and a receiving space is formed between the cover plate, the foaming tape (2) and the inner container (6).
  6. 6. The process for producing a water heater according to claim 5, wherein in step S3, foaming material is injected into the accommodating space to foam.

Description

Production process of water heater and water heater Technical Field The invention relates to the technical field of water heaters, in particular to a production process of a water heater and the water heater. Background In the process of producing the water storage type electric water heater, the common steps are that an end cover is arranged on a shell, then a foaming adhesive tape is sleeved on the outer side of the inner container, then the inner container and the foaming adhesive tape are placed in the shell, and foaming materials are filled between the foaming adhesive tape and the inner container for foaming. Because the foaming material is too big in the strength when foaming, can lead to the foaming material to warp the end cover top, consequently can place the thicker bed course of thickness between end cover and inner bag, because the setting of bed course makes appear the cavity between casing and the bed course, when filling the foaming material, the foaming material relies on gravity to enter into between foaming sticky tape and the inner bag and flow downwards, but because the cavity volume is less, simply rely on the gravity effect of foaming material can't strut the foaming sticky tape for the foaming sticky tape can't laminate with the inner wall of cavity, and then makes appear the cavity between casing and the foaming sticky tape, makes the position of cavity appear sunkenly because of the collision easily in the casing transportation of water heater. Therefore, there is a need to design a water heater and a production process thereof to avoid the generation of cavities. Disclosure of Invention The invention aims to provide a production process of a water heater and the water heater, which solve the technical problem that a cavity is easily formed during foaming due to the fact that a cushion layer is arranged on an end cover to cause the cavity to be formed between the end cover and a shell. To achieve the purpose, the invention adopts the following technical scheme: the invention provides a production process of a water heater, which comprises the following steps: S1, embedding a foaming adhesive tape in a shell of a water heater, and expanding the foaming adhesive tape through a shape follow-up device so as to enable the foaming adhesive tape to be attached to the side wall of a cavity formed between the shell and a cushion layer on an end cover of the water heater; S2, placing the liner in the foaming adhesive tape and supporting the liner on the cushion layer; s3, injecting foaming materials between the foaming adhesive tape and the inner container for foaming. According to the production process of the water heater, the foaming adhesive tape is sleeved in the shell of the water heater and is spread by the shape follow device, so that the foaming adhesive tape is attached to the side wall of the cavity formed between the shell and the cushion layer on the end cover of the water heater, then the liner is placed in the foaming adhesive tape and is supported on the cushion layer, the foaming material is injected between the foaming adhesive tape and the liner for foaming, and the foaming adhesive tape is spread by the shape follow device and attached to the side wall of the cavity, so that the foaming material can fill the cavity by means of the gravity action of the foaming adhesive tape, the phenomenon of a cavity is avoided, and the situation that the shell is sunken due to collision when the water heater is transported is avoided. As a preferable mode of the production process of the water heater, in step S1, the foaming tape is attached to the entire inner wall of the housing in the axial direction thereof. The foaming adhesive tape is attached to the whole inner wall of the shell along the axial direction of the foaming adhesive tape, so that the injection of foaming materials is prevented from being influenced. As a preferable scheme of the production process of the water heater, the shape following device comprises a pressing piece, wherein the pressing piece stretches into the foaming adhesive tape from one end of the foaming adhesive tape, which is provided with an opening, and moves along the axial direction of the shell so as to press the foaming adhesive tape into the cavity and enable the foaming adhesive tape to be attached to the side wall of the cavity. The pressing piece of the follow-up device can extend into the foaming adhesive tape from one end of the opening of the foaming adhesive tape and move along the axial direction of the shell so as to press the foaming adhesive tape into the cavity, and the foaming adhesive tape is attached to the side wall of the cavity so as to prevent the cavity from forming a cavity in the foaming stage. As a preferable scheme of the production process of the water heater, the shape following device further comprises: And the output end of the driving device is connected with the pressing piece and drives the pressing piece to move alo