CN114234541B - Door seal structural member for refrigerator and welding processing method thereof - Google Patents
Door seal structural member for refrigerator and welding processing method thereof Download PDFInfo
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- CN114234541B CN114234541B CN202111536890.4A CN202111536890A CN114234541B CN 114234541 B CN114234541 B CN 114234541B CN 202111536890 A CN202111536890 A CN 202111536890A CN 114234541 B CN114234541 B CN 114234541B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/02—Doors; Covers
- F25D23/028—Details
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
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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
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- Refrigerator Housings (AREA)
Abstract
The invention discloses a door seal structural member for a refrigerator and a welding processing method thereof, wherein the door seal structural member for the refrigerator comprises an integral door seal structural member, the integral door seal structural member is in a frame shape integrated body, the integral door seal structural member is formed by welding the end parts of a transverse door seal structural member and the end parts of a longitudinal door seal structural member, and the welding processing method of the integral door seal structural member comprises the following steps: chamfering, machining a U-shaped through part, aligning and feeding door sealing structural parts, inserting shielding sheets, welding, heating, closing the die, and withdrawing the die. The invention solves the problems that the vent holes at the welding part of the existing refrigerator door sealing structural member are easy to be blocked and welded and adhered, can effectively eliminate the negative pressure in the refrigerator door sealing structural member, ensures that the welded refrigerator door sealing structural member has good air exhaust performance, and the vent holes cannot be blocked due to the welded and adhered structure.
Description
Technical Field
The invention relates to the field of refrigerator door seal structural parts and corresponding welding processing methods, in particular to a door seal structural part for a refrigerator and a welding processing method thereof.
Background
The door seal structure of the refrigerator is a key component for closely attaching and contacting the refrigerator door body and the refrigerator liner. The door seal structure of the refrigerator is generally overall frame-shaped, so that the door seal structure can be stably arranged in the clamping groove on the inner side of the corresponding refrigerator door body. The door seal structure of the refrigerator is provided with no magnetic strip inside because of different use conditions. The existing refrigerator door seal structural member is easy to collapse and deform in the actual use process, and corresponding reinforcing supports are required to be designed and processed in the door seal structural member of the refrigerator door seal structural member. However, after the whole welding and forming of the existing refrigerator door sealing structural member, as the cavity is formed in the door sealing structural member and air exists in the cavity, after the actual welding and forming, the welded and processed refrigerator door sealing structural member has poor air exhaust property, so that the air in the refrigerator door sealing structural member cannot be timely exhausted, negative pressure is often generated in the refrigerator door sealing structural member, and the refrigerator door body with the frame-shaped door sealing structural member arranged on the inner side is closed inaccurately, so that the refrigerator door body is leaked and condensed;
in addition, in order to solve the phenomenon of condensation dew leakage, part of the existing refrigerator door seal structural members can be punched and processed with small exhaust holes at the welding positions of the refrigerator door seal structural members, but when the door seal structural members with small exhaust holes are welded into an integral frame-shaped door seal structural member product in the follow-up process, due to unreasonable welding process design, no corresponding welding shielding piece is matched, the small exhaust hole Kong Yifa is blocked, and even the small exhaust holes are welded and adhered with the integral door seal structural member into a whole, so that the small exhaust holes cannot play a role in exhaust. Therefore, the company starts with the internal structural design of the refrigerator door seal structural member, and newly develops and designs a welding processing method corresponding to the refrigerator door seal structural member so as to solve the problems of the conventional refrigerator door seal structural member and the common existing welding processing.
Disclosure of Invention
In order to solve the problems, the invention provides the door seal structure for the refrigerator and the welding processing method thereof, which can solve the problems of the existing door seal structure for the refrigerator, can effectively prevent the door seal structure from collapsing and deforming, solve the problems of easy blockage of exhaust holes at the welding position of the existing door seal structure for the refrigerator and welding adhesion, can effectively eliminate negative pressure in the door seal structure for the refrigerator, ensure good exhaust performance of the door seal structure after welding processing, prevent the exhaust holes from being blocked due to welding adhesion, and are suitable for popularization and use in manufacturing products of the door seal structure for the refrigerator of various materials such as PVC, TPE, TPEE.
The technical scheme adopted by the invention is as follows:
the door seal structure part for the refrigerator comprises an integral door seal structure part, wherein the integral door seal structure part is in a frame shape and is formed by welding the end part of a transverse door seal structure part and the end part of a longitudinal door seal structure part, the door seal structure part is a structure body with a cavity, the upper top part of the door seal structure part is provided with an arc sealing surface, the inner side of the lower part of the arc sealing surface is provided with an S-shaped support, the upper part of the S-shaped support and the lower part of the arc sealing surface are mutually connected into a whole, the lower part of the S-shaped support is provided with a transverse middle support connecting surface, the lower part of the transverse middle support connecting surface is provided with side-by-side hollow air chambers, the bottom of each hollow air chamber is provided with a bottom support connecting surface, the right side of the bottom support connecting surface is provided with an outer convex clamping part, the outer convex clamping part can enable the integral door seal structure part to be stably embedded in a clamping groove of a refrigerator door body, the side-by-side hollow air chamber can increase the supporting stability of the door seal structure part, the S-shaped support and the side hollow air chamber can prevent the door seal structure part from collapsing and deforming, the integral door seal structure part is ensured to be full and not to deform easily,
the outer side of the right side surface of the door sealing structure member is provided with a first sealing attaching part and a second sealing attaching part, and the first sealing attaching part and the second sealing attaching part can enable the outer side of the right side surface of the door sealing structure member to be in sealing fit with a contact area of the inner side of the refrigerator door body;
the U-shaped perforating part is arranged below the second sealing attaching part and penetrates through the right side face of the door sealing structural part inwards from the lower side of the second sealing attaching part, the U-shaped perforating part penetrates through the S-shaped support inside the door sealing structural part along the oblique upper side, the U-shaped perforating part cannot penetrate through the left side face and the arc sealing face of the door sealing structural part, the U-shaped perforating part can effectively eliminate negative pressure inside the whole door sealing structural part after welding, and good air exhaust performance of the door sealing structural part of a refrigerator after welding processing is ensured.
In order to ensure that the U-shaped through hole part on the door seal structural member can not be blocked and can not be welded and adhered with the integral door seal structural member into a whole when the door seal structural member is actually welded and processed into an integral frame-shaped door seal structural member product, the welding processing method of the door seal structural member is further subjected to integral improvement and optimization design, and the specific steps are as follows:
step one, chamfering: the end parts of the transverse door seal structural part and the longitudinal door seal structural part are subjected to beveling by using a cutting device, so that the end parts of the transverse door seal structural part and the longitudinal door seal structural part are processed into 45-degree inclined surfaces, and the 45-degree inclined surfaces of the end parts of the transverse door seal structural part and the 45-degree inclined surfaces of the end parts of the longitudinal door seal structural part are ensured to be matched with each other correspondingly;
step two, machining a U-shaped through part: a U-shaped perforating part is processed below the second sealing and attaching part on the outer side of the right side surface of the transverse door sealing structural member and the longitudinal door sealing structural member by using perforating processing equipment, so that the U-shaped perforating part penetrates through the right side surface of the door sealing structural member inwards from the lower side of the second sealing and attaching part, penetrates through an S-shaped support in the door sealing structural member along the obliquely upper side, and cannot penetrate through the left side surface and the arc sealing surface of the door sealing structural member;
thirdly, aligning and feeding door sealing structural members: correspondingly placing the processed transverse door seal structural member and the processed longitudinal door seal structural member at a feeding position of a welding die in door seal welding equipment, so as to ensure that a 45-degree slope surface of the end part of the transverse door seal structural member can be matched with a 45-degree slope surface of the end part of the longitudinal door seal structural member;
step four, shielding sheet inserting and blocking: a shielding sheet is inserted into the U-shaped through part at the 45-degree slope surface of the end part of the transverse door sealing structural part, or the shielding sheet is inserted into the U-shaped through part at the 45-degree slope surface of the end part of the longitudinal door sealing structural part, at the moment, the support of the shielding sheet can ensure that the transverse door sealing structural part and the longitudinal door sealing structural part cannot deform due to the U-shaped through part,
starting clamping and closing the door seal welding equipment, so that the transverse door seal structural member and the longitudinal door seal structural member at the feeding position of the welding mould are correspondingly clamped, and the U-shaped through hole part at the 45-degree slope surface of the transverse door seal structural member is internally inserted into a shielding sheet to be correspondingly matched with the 45-degree slope surface of the end part of the longitudinal door seal structural member, or the U-shaped through hole part at the 45-degree slope surface of the end part of the longitudinal door seal structural member is internally inserted into a shielding sheet to be correspondingly matched with the 45-degree slope surface of the end part of the transverse door seal structural member;
step five, welding, heating and die closing: opening a heating button of a welding mould on door seal welding equipment, welding and heating a shielding sheet inserted into a U-shaped through part at a 45-degree slope surface on the transverse door seal structural member and a 45-degree slope surface at the end part of the longitudinal door seal structural member, or welding and heating a shielding sheet inserted into a U-shaped through part at a 45-degree slope surface on the end part of the longitudinal door seal structural member and a 45-degree slope surface at the end part of the transverse door seal structural member, wherein the shielding sheet inserted into the U-shaped through part can block the transverse door seal structural member or the residual material of the longitudinal door seal structural member which is melted at high temperature, and the U-shaped through part cannot be adhered to the corresponding 45-degree slope surface due to the blocking effect of the shielding sheet on one side with the U-shaped through part, and the other parts without the U-shaped through part can be welded and adhered to the 45-degree slope surface at the end part of the longitudinal door seal structural member into a whole, so that the transverse door seal structural member and the interior of the U-shaped through part on the longitudinal door seal structural member cannot be adhered to each other;
step six, die stripping: opening door seal welding equipment makes the divided button of welding mould, makes the welding mould on the welding equipment separate, follow the welding heat adhesion after the U-shaped perforating part of horizontal door seal structure or in the U-shaped perforating part of vertical door seal structure take out the piece that shelters from, in this way horizontal door seal structure with the 45 slope department that corresponds of vertical door seal structure can form U-shaped perforating part, and U-shaped perforating part enables the whole door seal structure after the welding process and arranges gas property good, effectively eliminates the inside negative pressure of whole door seal structure after the welding, prevents that whole door seal structure from installing when using after the refrigerator door body, can not be because the inside negative pressure of whole door seal structure, and makes the refrigerator door body not tightly produce the condensation phenomenon.
In order to enable the shielding sheet to be matched with the U-shaped through hole, the shielding sheet can effectively block welding residual materials and prevent the welding residual materials from entering the U-shaped through hole to cause blockage, and furthermore, the shielding sheet used in the welding processing process of the door sealing structural member is optimally designed, wherein the whole shielding sheet is spoon-shaped, the lower part of the shielding sheet is provided with a heat insulation part, and the heat insulation part can block the residual materials of the transverse door sealing structural member or the longitudinal door sealing structural member which are melted at high temperature;
the shape and the size of the heat insulation part at the lower part of the shielding sheet are matched with those of the U-shaped through hole, so that the heat insulation part at the lower part of the shielding sheet can be inserted into the U-shaped through hole.
In order to meet the requirements of welding the door seal structural members into an integral frame-shaped door seal structural member product by using door seal welding equipment and corresponding welding dies in the welding processing process, further, the welding dies on the door seal welding equipment are provided with heating irons, the temperature range of the heating irons on the welding dies is 750-800 ℃ when welding and heating is carried out, the time for welding and heating is 3-4 s, and the power of the door seal welding equipment is 2.5KW.
In order to ensure that after the door seal structural members are welded into the integral frame-shaped door seal structural member finished product, when the integral frame-shaped door seal structural member finished product is installed in the corresponding clamping groove on the inner side of the refrigerator door body, the integral frame-shaped door seal structural member finished product has good sealing fit with the inner wall of the clamping groove of the refrigerator door body, and furthermore, the outer side of the lower part of the outer convex clamping part is provided with a C-shaped fit part, and the C-shaped fit part can improve the sealing fit between the lower bottom of the outer convex clamping part and the inner wall of the clamping groove of the refrigerator door body.
In order to further improve the sealing performance between the integral frame-shaped door seal structural member product and the refrigerator liner when the integral frame-shaped door seal structural member product is arranged in the clamping groove on the inner side of the corresponding refrigerator door body after the integral frame-shaped door seal structural member product is welded into the integral frame-shaped door seal structural member product, further, the inner side of the left side surface of the door seal structural member is provided with a reinforcing lobular part, and the reinforcing lobular part can further improve the sealing performance between the door seal structural member and the refrigerator liner.
Compared with the prior art, the door sealing structural member for the refrigerator and the welding processing method corresponding to the door sealing structural member have the beneficial effects that:
the door seal structure for the refrigerator is characterized in that an S-shaped support is arranged in a cavity structure body of a main structure member of the door seal, a transverse middle support connecting surface is arranged at the lower part of the S-shaped support, and side-by-side hollow air chambers are arranged at the lower part of the transverse middle support connecting surface, so that the S-shaped support and the side-by-side hollow air chambers can effectively prevent collapse deformation of the door seal structure member;
2, a U-shaped through hole is formed below a second sealing joint part on the door sealing structural part for the refrigerator, the U-shaped through hole penetrates through the right side surface of the door sealing structural part inwards from the lower part of the second sealing joint part, the U-shaped through hole penetrates through an S-shaped support inside the door sealing structural part along the obliquely upper part, the U-shaped through hole cannot penetrate through the left side surface and an arc sealing surface of the door sealing structural part, and in the process of welding the door sealing structural part for the refrigerator into an integral frame-shaped door sealing structural part product, a shielding piece is inserted into the U-shaped through hole, so that welding residues can be effectively blocked by the shielding piece, and the welding residues are prevented from entering the U-shaped through hole to cause blockage; the heat insulation part at the lower part of the shielding sheet can effectively avoid the welding and adhesion of the whole door seal structural member as a whole, ensure that the finished product of the welded and processed whole frame-shaped door seal structural member has good air exhaust performance, the U-shaped through part can not be blocked due to the welding and adhesion, the U-shaped through part can effectively eliminate the negative pressure inside the refrigerator door seal structural member, ensure that the refrigerator door body provided with the frame-shaped door seal structural member is tightly closed, and prevent the refrigerator door body from generating condensation leakage.
Drawings
Fig. 1 is a diagram of a welding process route of a door seal structure for a refrigerator and a welding process method thereof;
FIG. 2 is a schematic side view of a door seal structure for a refrigerator and a welding method thereof, wherein after a part of the door seal structure for the refrigerator is subjected to beveling, the door seal structure is adjacent to a bevel part;
FIG. 3 is a schematic diagram of a welding mold of a welding device for a door seal structure member and a door seal for a refrigerator, heating iron on the welding mold, and a shielding sheet placement area before welding;
fig. 4 is a schematic diagram of a welding mold of a welding device for a door seal structure member and a door seal for a refrigerator, heating iron on the welding mold, and a shielding sheet placement area in the welding process;
FIG. 5 is a schematic front view of a finished product of an integral frame-shaped door seal structure after welding, according to the door seal structure for a refrigerator and the welding method thereof;
fig. 6 is a schematic perspective view of a whole of a shielding sheet used in welding process, which is a door seal structure for a refrigerator and a welding process method thereof;
fig. 7 is a schematic front view of a whole of a shielding sheet used in welding process, showing a door seal structure for a refrigerator and a welding process method thereof.
Remarks description
1. Clamping and closing; 2. a shielding sheet; 201. a heat insulating part; 3. a door seal structure; 301. an arc-shaped sealing surface; s-shaped support; 303. a transverse middle support connecting surface; 304. a hollow air chamber; 305. a convex clamping part; 306. sealing and attaching the second connecting part; 307. sealing the first connecting part; c-shaped abutment; 309. enhancing the leaflet; 4. welding a die; 5. heating iron; 6.U shaped through opening; 7. an integral door seal structural member; 701. a transverse door seal structure; 702. a longitudinal door seal structure; 8. and a feeding position.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden on the person of ordinary skill in the art based on the embodiments of the invention, are within the scope of the invention.
The present invention will be described in further detail with reference to examples and embodiments.
As shown in fig. 1 to 5, a door seal structure for a refrigerator comprises an integral door seal structure 7, the integral door seal structure 7 is in a frame shape and is formed by welding the end part of a transverse door seal structure 701 and the end part of a longitudinal door seal structure 701, the door seal structure 3 is a structure with a cavity, the upper top of the door seal structure 3 is provided with an arc sealing surface 301, the inner side of the lower part of the arc sealing surface 301 is provided with an S-shaped support 302, the upper part of the S-shaped support 302 is connected with the lower part of the arc sealing surface 301 into a whole, the lower part of the S-shaped support 302 is provided with a transverse middle supporting connecting surface 303, the lower part of the transverse middle supporting connecting surface 303 is provided with a side-by-side hollow air chamber 304, the bottom of the hollow air chamber 304 is provided with a bottom supporting connecting surface, the right side of the bottom supporting connecting surface is provided with an outer protruding clamping part 305, the outer protruding clamping part 305 can enable the integral door seal structure 7 to be stably embedded in a clamping groove of a refrigerator door body, the side supporting stability of the door seal structure 3 can be increased, the S-shaped support 302 and the side hollow air chamber 304 can prevent the door seal structure 3 from collapsing and the full door seal structure 3 from being deformed,
the outer side of the right side surface of the door sealing structural member 3 is provided with a first sealing attaching part 307 and a second sealing attaching part 306, and the first sealing attaching part 307 and the second sealing attaching part 306 can enable the outer side of the right side surface of the door sealing structural member 3 to be in sealing attachment with the contact area of the inner side of the refrigerator door body;
the U-shaped perforating part 6 is arranged below the second sealing attaching part 306, the U-shaped perforating part 6 penetrates through the right side face of the door sealing structural part 3 inwards from the lower side of the second sealing attaching part 306, the U-shaped perforating part 6 penetrates through the S-shaped support 302 inside the door sealing structural part 3 along the obliquely upper side, the U-shaped perforating part 6 cannot penetrate through the left side face and the arc-shaped sealing face 301 of the door sealing structural part 3, the U-shaped perforating part 6 can effectively eliminate negative pressure inside the whole door sealing structural part 7 after welding, and good air exhaust performance of the refrigerator door sealing structural part 3 after welding processing is ensured.
In order to ensure that the U-shaped through hole 6 on the door seal structural member 3 is not blocked and is not welded and adhered with the integral door seal structural member 7 into a whole when the door seal structural member 3 is actually welded and processed into a finished product of the integral frame-shaped door seal structural member 7, the welding processing method of the door seal structural member 3 is subjected to integral improvement and optimization design, and the specific steps are as follows:
step one, chamfering: the end parts of the transverse door seal structural part 701 and the longitudinal door seal structural part 702 are subjected to beveling by using a cutting device, so that the end parts of the transverse door seal structural part 701 and the end parts of the longitudinal door seal structural part 702 are processed into 45-degree inclined surfaces, and the 45-degree inclined surfaces of the end parts of the transverse door seal structural part 701 can be matched with the 45-degree inclined surfaces of the end parts of the longitudinal door seal structural part 702 correspondingly;
step two, processing a U-shaped through part 6: a U-shaped perforating part 6 is processed below the second sealing attaching part 306 on the outer side of the right side surface of the transverse door sealing structural part 701 and the longitudinal door sealing structural part 702 by using perforating processing equipment, so that the U-shaped perforating part 6 penetrates through the right side surface of the door sealing structural part 3 inwards from the lower side of the second sealing attaching part 306, and the U-shaped perforating part 6 penetrates through the S-shaped support 302 in the door sealing structural part 3 along the obliquely upper side but cannot penetrate through the left side surface of the door sealing structural part 3 and the arc-shaped sealing surface 301;
thirdly, aligning and feeding the door sealing structural member 3: correspondingly placing the processed transverse door seal structural member 701 and the processed longitudinal door seal structural member 702 at a feeding position 8 of a welding die 4 in door seal welding equipment, so as to ensure that a 45-degree slope surface at the end part of the transverse door seal structural member 701 can be matched with a 45-degree slope surface at the end part of the longitudinal door seal structural member 702;
step four, the shielding sheet 2 is inserted and blocked: the shielding sheet 2 is inserted into the U-shaped through part 6 at the 45-degree slope surface of the end part of the transverse door sealing structural part 701, or the shielding sheet 2 is inserted into the U-shaped through part 6 at the 45-degree slope surface of the end part of the longitudinal door sealing structural part 702, at this time, the support of the shielding sheet 2 can ensure that the transverse door sealing structural part 701 and the longitudinal door sealing structural part 702 cannot be deformed due to the U-shaped through part 6,
starting a clamping die 1 on a door seal welding device, so that the transverse door seal structural member 701 and the longitudinal door seal structural member 702 of a feeding part 8 of a welding die 4 are correspondingly clamped, and a shielding sheet 2 is inserted into a U-shaped through part 6 at a 45-degree slope surface of the transverse door seal structural member 701 to be correspondingly matched with a 45-degree slope surface of the end part of the longitudinal door seal structural member 702, or a shielding sheet 2 is inserted into a U-shaped through part 6 at a 45-degree slope surface of the end part of the longitudinal door seal structural member 702 to be correspondingly matched with a 45-degree slope surface of the end part of the transverse door seal structural member 701;
step five, welding, heating and die closing: opening a heating button of a welding mould 4 on a door seal welding device, welding and heating a shielding sheet 2 and a 45-degree inclined surface of the end part of a longitudinal door seal structural part 702 in a U-shaped through part 6 at the 45-degree inclined surface of the transverse door seal structural part 701, or welding and heating a shielding sheet 2 and a 45-degree inclined surface of the end part of the longitudinal door seal structural part 701 in a U-shaped through part 6 at the 45-degree inclined surface of the end part of the longitudinal door seal structural part 702, wherein the shielding sheet 2 can be inserted into the U-shaped through part 6 to block the residual materials of the transverse door seal structural part 701 or the longitudinal door seal structural part 702 which are melted at high temperature, and the side with the U-shaped through part 6 can not be adhered to the corresponding 45-degree inclined surface of the end part of the longitudinal door seal structural part 702 due to the blocking effect of the shielding sheet 2, and the 45-degree inclined surface of the other parts without the U-shaped through part 6 on the transverse door seal structural part 701 can be welded and adhered to the 45-degree inclined surface of the end part of the longitudinal door seal structural part 702 integrally, so that the non-adhered to the longitudinal door seal structural part 702 and the longitudinal door seal structural part 702 can be ensured;
step six, die stripping: opening the button that door seal welding equipment made welding mould 4 separate, make welding mould 4 on the welding equipment separate, follow the welding heat adhesion after the U-shaped through-hole 6 of horizontal door seal structure 701 or in the U-shaped through-hole 6 of vertical door seal structure 702 take out and shelter from piece 2, in like this horizontal door seal structure 701 with the 45 slope department that vertical door seal structure 702 corresponds can form U-shaped through-hole 6, U-shaped through-hole 6 can make the whole door seal structure 7 after the welding process exhaust gas nature good, effectively eliminates the inside negative pressure of whole door seal structure 7 after the welding, prevents that whole door seal structure 7 from installing when using behind the refrigerator door body, can not be because the inside negative pressure of whole door seal structure 7, and make the refrigerator door body not tightly produce the phenomenon of condensation.
In order to enable the shielding sheet 2 to be matched with the U-shaped through part 6, the shielding sheet 2 can effectively block welding residual materials and prevent the welding residual materials from entering the U-shaped through part 6 to cause blockage, and furthermore, the shielding sheet 2 used in the welding process of the door sealing structural member 3 is optimally designed, wherein the shielding sheet 2 is integrally spoon-shaped, the lower part of the shielding sheet 2 is provided with a heat insulation part 201, and the heat insulation part 201 can block the residual materials of the transverse door sealing structural member 701 or the longitudinal door sealing structural member 702 which are melted at high temperature;
the shape and size of the heat insulation part 201 at the lower part of the shielding sheet 2 are matched with those of the U-shaped through hole part 6, so that the heat insulation part 201 at the lower part of the shielding sheet 2 can be inserted into the U-shaped through hole part 6.
In order to meet the requirements of welding the door seal structural member 3 into an integral frame-shaped door seal structural member 7 product by using door seal welding equipment and a corresponding welding mold 4 in the welding processing process of the door seal structural member 3, further, the welding mold 4 on the door seal welding equipment is provided with heating iron 5, when welding heating is carried out, the temperature range of the heating iron 5 on the welding mold 4 is 750-800 ℃, the time for welding heating is 3-4 s, and the power of the door seal welding equipment is 2.5KW.
In order to ensure that after the door seal structural member 3 is welded into the finished product of the integral frame-shaped door seal structural member 7, when the finished product of the integral frame-shaped door seal structural member 7 is installed in the corresponding clamping groove on the inner side of the refrigerator door body, the sealing fit between the finished product of the integral frame-shaped door seal structural member 7 and the inner wall of the clamping groove of the refrigerator door body is good, further, a C-shaped fitting part 308 is arranged on the outer side of the lower part of the outer protruding clamping part 305, and the sealing fit between the lower bottom of the outer protruding clamping part 305 and the inner wall of the clamping groove of the refrigerator door body can be improved by the C-shaped fitting part 308.
In order to further improve the sealing performance between the finished product of the integral frame-shaped door seal structural member 7 and the refrigerator liner when the finished product of the integral frame-shaped door seal structural member 7 is arranged in the clamping groove on the inner side of the corresponding refrigerator door body after the finished product of the integral frame-shaped door seal structural member 7 is welded to the door seal structural member 3, furthermore, the inner side of the left side surface of the door seal structural member 3 is provided with a reinforcing small leaf 309, and the reinforcing small leaf 309 can further improve the sealing performance between the door seal structural member 3 and the refrigerator liner.
Example 1:
referring to fig. 1 to 7, a door seal structure for a refrigerator comprises an integral door seal structure 7, wherein the integral door seal structure 7 is in a frame shape and is formed by welding the end part of a transverse door seal structure 701 and the end part of a longitudinal door seal structure 701, the door seal structure 3 is a structure with a cavity, an arc-shaped sealing surface 301 is arranged at the upper top of the door seal structure 3, an S-shaped support 302 is arranged at the inner side of the lower part of the arc-shaped sealing surface 301, the upper part of the S-shaped support 302 is connected with the lower part of the arc-shaped sealing surface 301 into a whole, a transverse middle support connecting surface 303 is arranged at the lower part of the S-shaped support 302, a side-by-side hollow air chamber 304 is arranged at the lower part of the transverse middle support connecting surface 303, a bottom of the hollow air chamber 304 is provided with a bottom support connecting surface, the right side of the bottom support connecting surface is provided with an outer convex clamping part 305, the outer convex clamping part 305 can enable the integral door seal structure 7 to be stably embedded in a clamping groove of a refrigerator door body, the side-by-side hollow air chamber 304 can increase the support stability of the door seal structure 3, the S-shaped support 302 and the hollow air chamber 304 can prevent the vertical door seal structure 3 from collapsing, the side-by-side hollow air chamber 304 is ensured that the integral door seal structure 7 is not easy to deform,
the outer side of the right side surface of the door sealing structural member 3 is provided with a first sealing attaching part 307 and a second sealing attaching part 306, and the first sealing attaching part 307 and the second sealing attaching part 306 can enable the outer side of the right side surface of the door sealing structural member 3 to be in sealing attachment with the contact area of the inner side of the refrigerator door body;
the U-shaped perforating part 6 is arranged below the second sealing attaching part 306, the U-shaped perforating part 6 penetrates through the right side surface of the door sealing structural part 3 inwards from the lower side of the second sealing attaching part 306, the U-shaped perforating part 6 penetrates through the S-shaped support 302 inside the door sealing structural part 3 along the obliquely upper side, the U-shaped perforating part 6 cannot penetrate through the left side surface and the arc-shaped sealing surface 301 of the door sealing structural part 3, the U-shaped perforating part 6 can effectively eliminate negative pressure inside the whole door sealing structural part 7 after welding, and good air exhaust performance of the refrigerator door sealing structural part 3 after welding processing is ensured.
The welding processing method of the door seal structural member 3 carries out integral improvement and optimization design, and comprises the following specific steps:
step one, chamfering: the end parts of the transverse door seal structural part 701 and the longitudinal door seal structural part 702 are subjected to beveling by using a cutting device, so that the end parts of the transverse door seal structural part 701 and the end parts of the longitudinal door seal structural part 702 are processed into 45-degree inclined surfaces, and the 45-degree inclined surfaces of the end parts of the transverse door seal structural part 701 can be matched with the 45-degree inclined surfaces of the end parts of the longitudinal door seal structural part 702 correspondingly;
step two, processing a U-shaped through part 6: a U-shaped perforating part 6 is processed below the second sealing attaching part 306 on the outer side of the right side of the transverse door sealing structural part 701 and the longitudinal door sealing structural part 702 by using perforating processing equipment, so that the U-shaped perforating part 6 penetrates through the right side of the door sealing structural part 3 inwards from the lower side of the second sealing attaching part 306, and the U-shaped perforating part 6 penetrates through the S-shaped support 302 in the door sealing structural part 3 along the inclined upper side but cannot penetrate through the left side of the door sealing structural part 3 and the arc-shaped sealing surface 301;
thirdly, aligning and feeding the door sealing structural member 3: correspondingly placing the processed transverse door seal structural member 701 and the processed longitudinal door seal structural member 702 at a feeding position 8 of a welding die 4 in door seal welding equipment, so as to ensure that a 45-degree slope surface at the end part of the transverse door seal structural member 701 can be matched with a 45-degree slope surface at the end part of the longitudinal door seal structural member 702;
step four, the shielding sheet 2 is inserted and blocked: the shielding sheet 2 is inserted into the U-shaped through part 6 at the 45-degree slope surface at the end part of the transverse door seal structural part 701, or the shielding sheet 2 is inserted into the U-shaped through part 6 at the 45-degree slope surface at the end part of the longitudinal door seal structural part 702, at this time, the support of the shielding sheet 2 can ensure that the transverse door seal structural part 701 and the longitudinal door seal structural part 702 cannot be deformed due to the U-shaped through part 6,
starting a clamping die 1 on the dock seal welding equipment, so that a transverse dock seal structural member 701 and a longitudinal dock seal structural member 702 of a feeding part 8 of a welding die 4 are correspondingly clamped, a shielding sheet 2 is inserted into a U-shaped through part 6 at a 45-degree slope surface of the transverse dock seal structural member 701 and a 45-degree slope surface of the end part of the longitudinal dock seal structural member 702 are correspondingly matched with each other, or the shielding sheet 2 is inserted into a U-shaped through part 6 at the 45-degree slope surface of the end part of the longitudinal dock seal structural member 702 and a 45-degree slope surface of the end part of the transverse dock seal structural member 701 are correspondingly matched with each other;
step five, welding, heating and die closing: opening a heating button of a welding mould 4 on a door seal welding device, welding and heating a shielding sheet 2 inserted into a U-shaped through part 6 at a 45-degree slope surface on a transverse door seal structural part 701 and a 45-degree slope surface at the end part of a longitudinal door seal structural part 702, or welding and heating a shielding sheet 2 inserted into a U-shaped through part 6 at a 45-degree slope surface on the end part of a longitudinal door seal structural part 702 and a 45-degree slope surface on the end part of a transverse door seal structural part 701, wherein the shielding sheet 2 inserted into the U-shaped through part 6 can block the transverse door seal structural part 701 or the residual material of the longitudinal door seal structural part 702 which is melted at high temperature, and the U-shaped through part 6 cannot be adhered with the corresponding 45-degree slope surface due to the blocking effect of the shielding sheet 2, so that the part of the U-shaped through part 6 can be adhered with the 45-degree slope surface on the transverse door seal structural part 701 and the 45-degree slope surface on the end part 702 of the longitudinal door seal structural part 702 can be welded and adhered integrally, and the inner parts of the U-shaped through part 6 on the transverse door seal structural part 701 and the longitudinal door seal structural part 702 can be ensured not to be adhered together;
step six, die stripping: opening a button of the door seal welding equipment for separating the welding dies 4, separating the welding dies 4 on the welding equipment, and taking out the shielding piece 2 from the U-shaped through hole part 6 of the transverse door seal structural member 701 or the U-shaped through hole part 6 of the longitudinal door seal structural member 702 after welding, wherein the U-shaped through hole part 6 can be formed at a 45-degree slope surface corresponding to the longitudinal door seal structural member 702 of the transverse door seal structural member 701, the U-shaped through hole part 6 can enable the welded integral door seal structural member 7 to have good air exhaust performance, the negative pressure in the welded integral door seal structural member 7 is effectively eliminated, and the phenomenon that the refrigerator door body is not tightly closed due to the negative pressure in the integral door seal structural member 7 when the integral door seal structural member 7 is installed in a refrigerator door body is used is avoided;
wherein: the shielding sheet 2 is spoon-shaped as a whole, the lower part of the shielding sheet 2 is provided with a heat insulation part 201, and the heat insulation part 201 can separate the residual materials of the transverse door sealing structural member 701 or the longitudinal door sealing structural member 702 which are melted at high temperature;
the shape and size of the heat insulating part 201 at the lower part of the shielding sheet 2 are matched with those of the U-shaped through hole part 6, so that the heat insulating part 201 at the lower part of the shielding sheet 2 can be inserted into the U-shaped through hole part 6.
The welding mould 4 on the door seal welding equipment is provided with heating iron 5, the temperature range of the heating iron 5 on the welding mould 4 is 750-800 ℃ when the welding heating is carried out, the time for the welding heating is 3-4 s, and the power of the door seal welding equipment is 2.5KW.
Example 2:
referring to fig. 1 to 7, and in particular fig. 2, the whole part of a door seal structure for a refrigerator and the specific steps of the welding processing method for the door seal structure 3 are the same as those of example 1, except that: the horizontal middle support connecting surface 6 arranged at the lower part of the S-shaped support 4, the lower part of the horizontal middle support connecting surface 6 is provided with a plurality of side-by-side hollow air chambers 10, the number of the side-by-side hollow air chambers 10 can be one or two or three or four, the most preferred number of the side-by-side hollow air chambers 10 is four, and meanwhile, in order to ensure that the door seal structural member 3 is welded into an integral frame door seal structural member 7 product, when the integral frame door seal structural member 7 product is arranged in a clamping groove at the inner side of a corresponding refrigerator door body, the sealing fit between the integral frame door seal structural member 7 product and the inner wall of the clamping groove of the refrigerator door body is good, the outer side of the lower part of the outer convex clamping portion 305 is provided with a C-shaped fit portion 308, and the sealing fit between the lower bottom of the outer convex clamping portion 305 and the inner wall of the clamping groove of the refrigerator door body can be improved by the C-shaped fit portion 308.
Example 3:
referring to fig. 1 to 7, and in particular fig. 2, the whole part of a door seal structure for a refrigerator and the specific steps of the welding processing method for the door seal structure 3 are the same as those of example 1, except that: the transverse middle support connecting surface 6 is arranged at the lower part of the S-shaped support 4, the lower part of the transverse middle support connecting surface 6 is provided with side-by-side hollow air chambers 10, the number of the side-by-side hollow air chambers 10 can be one or two or three or four, the most preferred number of the side-by-side hollow air chambers 10 is four, and meanwhile, in order to weld the door seal structural member 3 into an integral frame door seal structural member 7 product, when the integral frame door seal structural member 7 product is arranged in a clamping groove on the inner side of a corresponding refrigerator door body, in order to further improve the sealing performance between the integral frame door seal structural member 7 product and the refrigerator liner, the inner side of the left side surface of the door seal structural member 3 is provided with a reinforcing small leaf 309, and the reinforcing small leaf 309 can further improve the sealing performance between the door seal structural member 3 and the refrigerator liner.
The invention can effectively prevent the collapse deformation of the door seal structural member 3, solves the problems that the vent holes at the welding position of the existing refrigerator door seal structural member are easy to be blocked and welded and adhered, can effectively eliminate the negative pressure in the refrigerator door seal structural member, ensures that the welded and processed refrigerator door seal structural member has good air exhaust performance, prevents the vent holes from being blocked due to the welded and adhered, and is suitable for being popularized and used in manufacturing the refrigerator door seal structural member products of various materials such as PVC, TPE, TPEE.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and improvements could be made by those skilled in the art without departing from the inventive concept, which falls within the scope of the present invention.
Claims (6)
1. The welding processing method of the door seal structural member for the refrigerator is characterized by comprising the following specific steps of:
1) Chamfering: the end parts of the transverse door seal structural part and the longitudinal door seal structural part are subjected to beveling by using a cutting device, so that the end parts of the transverse door seal structural part and the longitudinal door seal structural part are processed into 45-degree inclined surfaces, and the 45-degree inclined surfaces of the end parts of the transverse door seal structural part and the 45-degree inclined surfaces of the end parts of the longitudinal door seal structural part are ensured to be matched with each other correspondingly;
2) Processing a U-shaped through part: a U-shaped perforating part is processed below the second sealing and attaching part on the outer side of the right side surface of the transverse door sealing structural member and the longitudinal door sealing structural member by using perforating processing equipment, so that the U-shaped perforating part penetrates through the right side surface of the door sealing structural member inwards from the lower side of the second sealing and attaching part, penetrates through an S-shaped support in the door sealing structural member along the obliquely upper side, and cannot penetrate through the left side surface and the arc sealing surface of the door sealing structural member;
3) Door seal structural member alignment feeding: correspondingly placing the processed transverse door seal structural member and the processed longitudinal door seal structural member at a feeding position of a welding die in door seal welding equipment, so as to ensure that a 45-degree slope surface of the end part of the transverse door seal structural member can be matched with a 45-degree slope surface of the end part of the longitudinal door seal structural member;
4) The shielding sheet is inserted and blocked: a shielding sheet is inserted into the U-shaped through part at the 45-degree slope surface of the end part of the transverse door sealing structural part, or the shielding sheet is inserted into the U-shaped through part at the 45-degree slope surface of the end part of the longitudinal door sealing structural part, at the moment, the support of the shielding sheet can ensure that the transverse door sealing structural part and the longitudinal door sealing structural part cannot deform due to the U-shaped through part,
starting clamping and closing the door seal welding equipment, so that the transverse door seal structural member and the longitudinal door seal structural member at the feeding position of the welding mould are correspondingly clamped, and the U-shaped through hole part at the 45-degree slope surface of the transverse door seal structural member is internally inserted into a shielding sheet to be correspondingly matched with the 45-degree slope surface of the end part of the longitudinal door seal structural member, or the U-shaped through hole part at the 45-degree slope surface of the end part of the longitudinal door seal structural member is internally inserted into a shielding sheet to be correspondingly matched with the 45-degree slope surface of the end part of the transverse door seal structural member;
5) Welding, heating and die closing: opening a heating button of a welding mould on door seal welding equipment, welding and heating a shielding sheet inserted into a U-shaped through part at a 45-degree slope surface on the transverse door seal structural member and a 45-degree slope surface at the end part of the longitudinal door seal structural member, or welding and heating a shielding sheet inserted into a U-shaped through part at a 45-degree slope surface on the end part of the longitudinal door seal structural member and a 45-degree slope surface at the end part of the transverse door seal structural member, wherein the shielding sheet inserted into the U-shaped through part can block the transverse door seal structural member or the residual material of the longitudinal door seal structural member which is melted at high temperature, and the U-shaped through part cannot be adhered to the corresponding 45-degree slope surface due to the blocking effect of the shielding sheet on one side with the U-shaped through part, and the other parts without the U-shaped through part can be welded and adhered to the 45-degree slope surface at the end part of the longitudinal door seal structural member into a whole, so that the transverse door seal structural member and the interior of the U-shaped through part on the longitudinal door seal structural member cannot be adhered to each other;
6) And (3) die stripping: opening door seal welding equipment makes the divided button of welding mould, makes the welding mould on the welding equipment separate, follow the welding heat adhesion after the U-shaped perforating part of horizontal door seal structure or in the U-shaped perforating part of vertical door seal structure take out the piece that shelters from, in this way horizontal door seal structure with the 45 slope department that corresponds of vertical door seal structure can form U-shaped perforating part, and U-shaped perforating part enables the whole door seal structure after the welding process and arranges gas property good, effectively eliminates the inside negative pressure of whole door seal structure after the welding, prevents that whole door seal structure from installing when using after the refrigerator door body, can not be because the inside negative pressure of whole door seal structure, and makes the refrigerator door body not tightly produce the condensation phenomenon.
2. The door seal structure for the refrigerator manufactured by the welding processing method according to claim 1, which is characterized by comprising an integral door seal structure, wherein the integral door seal structure is in a frame shape and is formed by welding the end part of a transverse door seal structure and the end part of a longitudinal door seal structure, the door seal structure is a structure with a cavity, an arc-shaped sealing surface is arranged at the upper top of the door seal structure, an S-shaped support is arranged at the inner side of the lower part of the arc-shaped sealing surface, the upper part of the S-shaped support and the lower part of the arc-shaped sealing surface are connected into a whole, a transverse middle support connecting surface is arranged at the lower part of the S-shaped support, a side-by-side hollow air chamber is arranged at the lower part of the transverse middle support connecting surface, a bottom support connecting surface is arranged at the bottom of the hollow air chamber, an outer convex clamping part is arranged at the right side of the bottom support connecting surface, the outer convex clamping part can enable the integral door seal structure to be stably embedded in a clamping groove of a refrigerator door body, the side-by-side hollow air chamber can increase the supporting stability of the door seal structure, the S-shaped support and the side hollow air chamber can prevent the door seal structure from collapsing and deforming, the whole door seal structure is ensured to be upright and full and not easy to deform,
the outer side of the right side surface of the door sealing structure member is provided with a first sealing attaching part and a second sealing attaching part, and the first sealing attaching part and the second sealing attaching part can enable the outer side of the right side surface of the door sealing structure member to be in sealing fit with a contact area of the inner side of the refrigerator door body;
the U-shaped perforating part is arranged below the second sealing attaching part and penetrates through the right side face of the door sealing structural part inwards from the lower side of the second sealing attaching part, the U-shaped perforating part penetrates through the S-shaped support inside the door sealing structural part along the oblique upper side, the U-shaped perforating part cannot penetrate through the left side face and the arc sealing face of the door sealing structural part, the U-shaped perforating part can effectively eliminate negative pressure inside the whole door sealing structural part after welding, and good air exhaust performance of the door sealing structural part of a refrigerator after welding processing is ensured.
3. The door seal structure for refrigerator according to claim 2, wherein the shielding sheet is integrally formed in a spoon shape, and a heat insulation part is provided at a lower part of the shielding sheet, and the heat insulation part can block the excess material of the transverse door seal structure or the longitudinal door seal structure which is melted at a high temperature;
the shape and the size of the heat insulation part at the lower part of the shielding sheet are matched with those of the U-shaped through hole, so that the heat insulation part at the lower part of the shielding sheet can be inserted into the U-shaped through hole.
4. The door seal structure for a refrigerator according to claim 2, wherein the welding mold of the door seal welding device is provided with heating iron, the temperature range of the heating iron on the welding mold is 750-800 ℃ when welding heating is carried out, the time for welding heating is 3-4 s, and the power of the door seal welding device is 2.5KW.
5. The door seal structure for a refrigerator according to claim 2, wherein the outer side of the lower part of the outer convex clamping part is provided with a C-shaped attaching part, and the C-shaped attaching part can improve the sealing attaching performance between the lower bottom of the outer convex clamping part and the inner wall of the clamping groove of the door body of the refrigerator.
6. The door seal structure for a refrigerator according to claim 2, wherein the inner side of the left side surface of the door seal structure is provided with a reinforcing small leaf part, and the reinforcing small leaf part can further improve the sealing performance between the door seal structure and the refrigerator liner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202111536890.4A CN114234541B (en) | 2021-12-15 | 2021-12-15 | Door seal structural member for refrigerator and welding processing method thereof |
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| CN202111536890.4A CN114234541B (en) | 2021-12-15 | 2021-12-15 | Door seal structural member for refrigerator and welding processing method thereof |
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| CN114234541B true CN114234541B (en) | 2023-06-06 |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003065664A (en) * | 2001-08-21 | 2003-03-05 | Toshiba Corp | Magnetic gasket structure of refrigerator door |
| CN100565055C (en) * | 2005-01-25 | 2009-12-02 | 利布赫尔家用器具奥克森豪森股份有限公司 | A kind of refrigeration and/or refrigerating plant |
| CN102564021B (en) * | 2012-02-01 | 2013-10-30 | 济南宇翔制冷设备有限公司 | Refrigerator door and processing method thereof |
| CN106052266B (en) * | 2016-05-26 | 2018-06-22 | 合肥华凌股份有限公司 | A kind of door seal and the Refrigerating container with the door seal |
| CN206919512U (en) * | 2017-06-29 | 2018-01-23 | 青岛新材料科技工业园发展有限公司 | Refrigerator door seal |
| CN211120231U (en) * | 2019-12-09 | 2020-07-28 | 安徽万朗磁塑股份有限公司 | Take Z type brace rod sealing door to seal |
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