CN114234541A - 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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- CN114234541A CN114234541A CN202111536890.4A CN202111536890A CN114234541A CN 114234541 A CN114234541 A CN 114234541A CN 202111536890 A CN202111536890 A CN 202111536890A CN 114234541 A CN114234541 A CN 114234541A
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- door seal
- structural member
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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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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
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- General Engineering & Computer Science (AREA)
- 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 which is integrated into a frame shape, the integral door seal structural member is formed by welding the end part of a transverse door seal structural member and the end part of a longitudinal door seal structural member, and the welding processing method of the integral door seal structural member comprises the following steps: beveling, processing a U-shaped through opening, aligning the door seal structural part with the material loading, inserting and blocking the shielding piece, welding, heating, die assembling and die stripping. The invention solves the problems that the vent hole at the welding part of the existing refrigerator door seal structural member is easy to be blocked and the welding adhesion occurs, can effectively eliminate the negative pressure in the refrigerator door seal structural member, ensures that the refrigerator door seal structural member after welding has good air discharge performance, and can not be blocked due to the welding adhesion.
Description
Technical Field
The invention relates to the field of refrigerator door seal structural members and corresponding welding processing methods, in particular to a door seal structural member for a refrigerator and a welding processing method thereof.
Background
The door seal structure of the refrigerator is a key part for enabling the refrigerator door body to be tightly attached and contacted with the refrigerator liner. The door sealing structure of the refrigerator is generally frame-shaped, so that the door sealing structure can be stably installed in the clamping groove on the inner side of the corresponding refrigerator door body. The door seal structure of the refrigerator has different use conditions, and the door seal structure of the refrigerator has no magnetic strip inside. The existing refrigerator door seal structural member is easy to collapse and deform in the actual use process, and corresponding reinforcing supports need to be designed and processed in the door seal structural member of the refrigerator door seal structural member. However, after the existing refrigerator door seal structural member is integrally welded and formed, because a cavity is formed in the door seal structural member, air is contained in the cavity, and after the door seal structural member is actually welded, processed and formed, the air discharging performance of the refrigerator door seal structural member is poor, so that the air in the refrigerator door seal structural member cannot be discharged in time, negative pressure can be generated in the refrigerator door seal structural member frequently, the refrigerator door body with the frame-shaped door seal structural member arranged on the inner side is not closed tightly, and the refrigerator door body generates a condensation leakage phenomenon;
in addition, partly current freezer door seals structure is in order to solve the condensation phenomenon of leaking, can punch at the welded junction of freezer door seals structure and process there is the exhaust aperture, but these processing have the door to seal the structure of exhaust aperture, when the whole frame shape door seals structure product of follow-up welding one-tenth finished product, because welding process design is unreasonable, do not match the welding shielding piece that has the correspondence, make the exhaust aperture easily take place to block up, the exhaust aperture is as an organic whole with whole door seals the structure welding adhesion even, make the exhaust aperture can not play the exhaust effect. Therefore, the company starts from the design of the internal structure of the refrigerator door seal structural member, researches and designs a welding processing method corresponding to the refrigerator door seal structural member again, and aims to solve the problems in the conventional refrigerator door seal structural member and welding processing.
Disclosure of Invention
The invention provides a door seal structural member for a refrigerator and a welding processing method thereof, which can solve the problems of the existing refrigerator door seal structural member, can effectively prevent the door seal structural member from collapsing and deforming integrally, solves the problems that the vent hole at the welding position of the existing refrigerator door seal structural member is easy to block and welding adhesion occurs, can effectively eliminate the negative pressure in the refrigerator door seal structural member, ensures that the refrigerator door seal structural member after welding processing has good air discharge performance, can not block due to welding adhesion, and is suitable for being popularized and used in the manufacture of refrigerator door seal structural member products made of various materials such as PVC, TPE, TPEE and the like.
The technical scheme adopted by the invention is as follows:
a door sealing structure for a refrigerator comprises an integral door sealing structure, wherein the integral door sealing structure is in a frame shape and is formed by welding the end part of a transverse door sealing structure and the end part of a longitudinal door sealing structure, the door sealing structure is a structure with a cavity, an arc sealing surface is arranged at the upper top part of the door sealing structure, an S-shaped support is arranged at the inner side of the lower part of the arc sealing surface, the upper part of the S-shaped support is connected with the lower part of the arc sealing surface into a whole, a transverse middle supporting connecting surface is arranged at the lower part of the S-shaped support, side-by-side hollow air chambers are arranged at the lower part of the transverse middle supporting connecting surface, a bottom support connecting surface is arranged at the bottom of each hollow air chamber, an outer convex clamping part is arranged at the right side of the bottom support connecting surface, the integral door sealing structure can be stably embedded in a clamping groove of a refrigerator door body through the outer convex clamping part, the side-by side hollow air chambers can increase the supporting stability of the door sealing structure, and the S-shaped support and the side-by side hollow air chambers can prevent the door sealing structure from collapsing and deforming, ensures that the whole door sealing structural member is upright, full and uneasy to deform,
the outer side of the right side face of the door sealing structural member is provided with a first sealing and pasting part and a second sealing and pasting part, and the first sealing and pasting part and the second sealing and pasting part can enable the outer side of the right side face of the door sealing structural member to be in sealing fit with a contact area of the inner side of the refrigerator door body;
the sealed two belows in company of portion that pastes are provided with the U-shaped oral area of wearing, the U-shaped oral area of wearing is inwards passed a door and is sealed the structure right flank from sealed two belows in company of portion, and the U-shaped oral area of wearing passes the inside S type support of a structure along oblique top, and the U-shaped portion of wearing can not pass the left surface and the arc seal face of a structure, and the U-shaped portion of wearing can effectively eliminate the inside negative pressure of whole door seal structure after the welding, ensures that the freezer door seal structure air discharge after the welding process is good.
In order to ensure that this type of door seals the structure and in actual welding process into whole frame shape door and seal the structure and produce the finished product, the U-shaped on the door seals the structure and wears mouthful portion can not blockked up, also can not seal the structure welding adhesion as an organic whole with whole door, further, to the welding process method of this type of door seals the structure, carried out whole improvement optimal design, its concrete step is:
step one, beveling: the cutting device is used for carrying out beveling processing on the end parts of the transverse door seal structural member and the longitudinal door seal structural member, so that the end part of the transverse door seal structural member and the end part of the longitudinal door seal structural member are processed into 45-degree slope surfaces, and the 45-degree slope surface of the end part of the transverse door seal structural member and the 45-degree slope surface of the end part of the longitudinal door seal structural member are ensured to be correspondingly matched with each other;
step two, processing the U-shaped penetrating part: using a piercing processing device to process U-shaped piercing parts below the second sealing and attaching parts on the outer sides of the right side surfaces of the transverse door sealing structural part and the longitudinal door sealing structural part, ensuring that the U-shaped piercing parts penetrate through the right side surfaces of the door sealing structural part from the lower parts of the second sealing and attaching parts to the inner side, and penetrating through the S-shaped supports in the door sealing structural part along the oblique upper part but not penetrating through the left side surface and the arc sealing surface of the door sealing structural part;
step three, aligning and feeding the door seal structural part: correspondingly placing the processed transverse door seal structural member and the processed longitudinal door seal structural member at a feeding position of a welding mould in door seal welding equipment, and ensuring that a 45-degree slope surface at the end part of the transverse door seal structural member is correspondingly matched with a 45-degree slope surface at the end part of the longitudinal door seal structural member;
step four, inserting the shielding piece into the shielding piece: a shielding piece is inserted into the U-shaped penetrating opening part at the 45-degree slope surface of the end part of the transverse door seal structural member, or a shielding piece is inserted into the U-shaped penetrating opening part at the 45-degree slope surface of the end part of the longitudinal door seal structural member, at the moment, the transverse door seal structural member and the longitudinal door seal structural member can be ensured not to deform due to the U-shaped penetrating opening part through the support of the shielding piece,
starting a clamping and die assembly on the door seal welding equipment, correspondingly clamping the transverse door seal structural member and the longitudinal door seal structural member at the feeding position of a welding die, and correspondingly enabling a shielding piece to be inserted into a U-shaped through opening part at a 45-degree slope surface on the transverse door seal structural member to be mutually matched with the 45-degree slope surface at the end part of the longitudinal door seal structural member, or enabling a shielding piece to be inserted into the U-shaped through opening part at the 45-degree slope surface at the end part of the longitudinal door seal structural member to be mutually matched with the 45-degree slope surface at the end part of the transverse door seal structural member;
step five, welding, heating and die assembly: opening a heating button of a welding mould on door seal welding equipment, welding and heating a shielding piece inserted into a U-shaped through opening part at a 45-degree slope surface on a transverse door seal structural member and the 45-degree slope surface at the end part of a longitudinal door seal structural member, or welding and heating a shielding piece inserted into the U-shaped through opening part at the 45-degree slope surface at the end part of the longitudinal door seal structural member and the 45-degree slope surface at the end part of the transverse door seal structural member, wherein the shielding piece inserted into the U-shaped through opening part can block the transverse door seal structural member or the excess material of the longitudinal door seal structural member which is melted at high temperature, one side processed with the U-shaped through opening part cannot be adhered to the corresponding 45-degree slope surface due to the blocking effect of the material and the shielding piece, and the 45-degree slope surface on the transverse door seal structural member without the U-shaped through opening part can be welded to the 45-degree slope surface at the end part of the longitudinal door seal structural member into a whole, therefore, the transverse door seal structural part and the longitudinal door seal structural part are not adhered to each other in the U-shaped penetrating opening part;
step six, demolding: open a door and seal welding equipment and make the detached button of welding mould, make the welding mould on the welding equipment separately, from after the welding heating adhesion the mouth part is worn to the U-shaped of horizontal door seal structure or take out in the mouth part is worn to the U-shaped of vertical door seal structure and shelter from the piece, like this horizontal door seal structure with 45 slope departments that vertical door seal structure corresponds can form the U-shaped mouth part of wearing, and the U-shaped mouth part of wearing enables whole door seal structure exhaust property after the welding process 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 behind the freezer door body, can not be because of the inside negative pressure of whole door seal structure, and make the freezer door body close not tight and produce the condensation phenomenon.
In order to enable the shielding piece to be matched with the U-shaped through opening part and enable the shielding piece to effectively block welding excess materials and prevent the welding excess materials from entering the U-shaped through opening part to cause blockage, the shielding piece is further optimally designed in the welding processing process of the door seal structural member, wherein the shielding piece is integrally spoon-shaped, the lower part of the shielding piece is provided with a heat insulation part, and the heat insulation part can block the excess materials of the transverse door seal structural member or the longitudinal door seal 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 piece are matched with those of the U-shaped opening part, so that the heat insulation part at the lower part of the shielding piece can be ensured to be inserted into the U-shaped opening part.
In order to meet the requirement of welding the door seal structural member into a finished product of the integral frame-shaped door seal structural member, the door seal welding equipment and the corresponding welding mould used in the welding process of the door seal structural member can meet the requirement of welding the door seal structural member into the finished product of the integral frame-shaped door seal structural member, further, the welding mould on the door seal welding equipment is provided with a heating iron, when the welding heating is carried out, the temperature range of the heating iron on the welding mould is 750-800 ℃, the time for welding heating is 3-4 s, and the power of the door seal welding equipment is 2.5 KW.
In order to ensure that this type of door seals the structure and welds into whole frame shape door and seals the structure and produce the finished product after, whole frame shape door seals the structure and produces the finished product and install when the inboard draw-in groove of the freezer door that corresponds, whole frame shape door seals the structure and produces between finished product and the freezer door body draw-in groove inner wall sealed laminating nature good, furtherly, the lower part outside of evagination block portion is equipped with C shape laminating portion, and C shape laminating portion can improve sealed laminating nature between the lower bottom of evagination block portion and the freezer door body draw-in groove inner wall.
In order to weld into whole frame shape door at this type of door and seal the structure and produce the finished product after, whole frame shape door seals the structure and produces the finished product and install when the draw-in groove of corresponding freezer door body inboard, in order to further improve the sealing performance between whole frame shape door seals the structure and produces finished product and the freezer inner bag, further, the inboard of door seals the structure left surface is equipped with reinforcing leaflet portion, and reinforcing leaflet portion can further improve the sealing performance between door seals the structure and the freezer inner bag.
Compared with the prior art, the door seal structural part for the refrigerator and the corresponding welding processing method have the following beneficial effects:
the door seal structural part for the refrigerator is characterized in that an S-shaped support is arranged in a cavity structural body of a door seal main structural part, a transverse middle supporting and connecting surface is arranged at the lower part of the S-shaped support, and parallel hollow air chambers are arranged at the lower part of the transverse middle supporting and connecting surface, so that the S-shaped support and the parallel hollow air chambers can effectively prevent the door seal structural part from collapsing and deforming;
2, a U-shaped through opening is processed below a second sealing and attaching part on the door sealing structural member for the refrigerator, the U-shaped through opening penetrates through the right side surface of the door sealing structural member from the lower part of the second sealing and attaching part to the inside, the U-shaped through opening penetrates through an S-shaped support in the door sealing structural member along the oblique upper part, the U-shaped through opening cannot penetrate through the left side surface and the arc-shaped sealing surface of the door sealing structural member, and in the process of welding the door sealing structural member for the refrigerator into an integral frame-shaped door sealing structural member to produce a finished product, a shielding sheet is inserted into the U-shaped through opening, so that welding remainders can be effectively blocked by the shielding sheet, and the welding remainders are prevented from entering the U-shaped through opening to cause blockage; the heat insulation part at the lower part of the shielding piece can effectively avoid the welding adhesion of the whole door seal structural member into a whole, so that the finished product of the whole frame door seal structural member after welding processing is good in air discharge performance, the U-shaped penetrating part cannot be blocked due to the welding adhesion, the negative pressure inside the refrigerator door seal structural member can be effectively eliminated by the U-shaped penetrating part, the refrigerator door body provided with the frame door seal structural member is ensured to be tightly closed, and the phenomenon of condensation leakage and condensation of the refrigerator door body is prevented.
Drawings
Fig. 1 is a route chart of a welding process of a door seal structural member for a refrigerator, which is disclosed by the invention;
fig. 2 is a schematic side perspective view of a door seal structural member for a refrigerator and a welding method thereof, wherein after a part of the door seal structural member for the refrigerator is processed in a beveling manner, the part of the door seal structural member close to the beveling surface is close to the beveling surface;
fig. 3 is a schematic diagram of a welding mold of the door seal structural member for the refrigerator and door seal welding equipment, a heating iron on the welding mold, and a shielding piece placing location area in the invention before welding;
fig. 4 is a schematic diagram of a welding mold of the door seal structural member for the refrigerator and the door seal welding device, a heating iron on the welding mold, and a shielding piece placing location in the welding process;
FIG. 5 is a front schematic view of a door seal structure for a refrigerator and a welding method thereof, according to the invention, after welding, the whole frame-shaped door seal structure is produced;
fig. 6 is an overall perspective view of a door seal structural member for a refrigerator and a welding method thereof, according to the invention, a shielding sheet used in the welding process is shown;
fig. 7 is a schematic front view of a shielding sheet used in a welding process of a door seal structure for a refrigerator and a welding method thereof.
Remarks to
1. Clamping and die assembly; 2. a shielding sheet; 201. a heat insulating portion; 3. a door seal structure; 301. an arc-shaped sealing surface; an S-shaped support; 303. a transverse middle support connecting surface; 304. a hollow air chamber; 305. a convex clamping part; 306. a second sealing and attaching part; 307. a first sealing and attaching part; 308, a C-shaped fit; 309. a reinforcement leaflet section; 4. welding the mold; 5. heating iron; 6, a U-shaped piercing part; 7. an integral door seal structure; 701. a transverse door seal structure; 702. a longitudinal door seal structure; 8. and (4) feeding.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The present invention will be described in further detail with reference to examples and specific embodiments.
As shown in fig. 1 to 5, a door seal structure for a refrigerator comprises an integral door seal structure 7, wherein the integral door seal structure 7 is a frame-shaped integral structure, the integral door seal structure 7 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-shaped seal surface 301, the inner side of the lower part of the arc-shaped seal surface 301 is provided with an S-shaped support 302, the upper part of the S-shaped support 302 and the lower part of the arc-shaped seal surface 301 are connected into a whole, the lower part of the S-shaped support 302 is provided with a transverse middle support connecting surface 303, the lower part of the transverse middle support connecting surface 303 is provided with side-by-side hollow air chambers 304, the bottom of the hollow air chambers 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 can enable the integral door seal structure 7 to be stably embedded in a clamping groove of a refrigerator door body, the parallel hollow air chambers 304 can increase the support stability of the door seal structural member 3, the S-shaped support 302 and the parallel hollow air chambers 304 can prevent the door seal structural member 3 from collapsing and deforming, ensure that the whole door seal structural member 7 stands upright, is full and is not easy to deform,
the outside of the right side surface of the door seal structural member 3 is provided with a first sealing and attaching part 307 and a second sealing and attaching part 306, and the first sealing and attaching part 307 and the second sealing and attaching part 306 can enable the outside of the right side surface of the door seal structural member 3 to be in sealing and attaching with a contact area of the inside of the refrigerator door body;
the sealed two 306 below of portion of linking of pasting is provided with U-shaped portion of wearing a mouthful 6, and U-shaped portion of wearing a mouthful 6 passes door seal structure 3 right flank inwards from sealed two 306 below of portion of pasting, and U-shaped portion of wearing a mouthful 6 passes the inside S type support 302 of door seal structure 3 along oblique top, and U-shaped portion of wearing a mouthful 6 can not pass the left surface and the arc seal face 301 of door seal structure 3, and U-shaped portion of wearing a mouthful 6 can effectively eliminate the inside negative pressure of whole door seal structure 7 after the welding, ensures that the freezer door seal structure 3 air discharge after the welding process is good.
In order to ensure that this type of door seals structure 3 when actual welding processing becomes whole frame shape door and seals structure 7 and produces the finished product, U-shaped on the door seals structure 3 and wears mouthful portion 6 can not blockked up, also can not seal 7 welding adhesion as an organic whole with whole door, further, to the welding process method of this type of door seals structure 3, carried out whole improvement optimal design, its concrete step is:
step one, beveling: the end parts of the transverse door seal structural member 701 and the longitudinal door seal structural member 702 are obliquely cut by using a cutting device, so that the end parts of the transverse door seal structural member 701 and the longitudinal door seal structural member 702 are processed into 45-degree slope surfaces, and the 45-degree slope surfaces of the end parts of the transverse door seal structural member 701 and the 45-degree slope surfaces of the end parts of the longitudinal door seal structural member 702 are ensured to be correspondingly matched with each other;
step two, processing the U-shaped penetrating part 6: a U-shaped through part 6 is processed below the second sealing and attaching part 306 of the outer side of the right side face of the transverse door sealing structural part 701 and the longitudinal door sealing structural part 702 by using a through processing device, so that the U-shaped through part 6 is ensured to penetrate through the right side face of the door sealing structural part 3 from the lower part of the second sealing and attaching part 306 to the inside, the U-shaped through part 6 penetrates through the S-shaped support 302 in the door sealing structural part 3 along the oblique upper part, but cannot penetrate through the left side face and the arc-shaped sealing face 301 of the door sealing structural part 3;
step three, aligning and feeding the door seal structural part 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 mold 4 in door seal welding equipment, and ensuring that a 45-degree slope surface at the end part of the transverse door seal structural member 701 can be correspondingly matched with a 45-degree slope surface at the end part of the longitudinal door seal structural member 702;
step four, inserting and blocking the shielding piece 2: a shielding piece 2 is inserted into the U-shaped through opening part 6 at the 45-degree slope surface of the end part of the transverse door seal structural member 701, or a shielding piece 2 is inserted into the U-shaped through opening part 6 at the 45-degree slope surface of the end part of the longitudinal door seal structural member 702, at this time, the support of the shielding piece 2 can ensure that the transverse door seal structural member 701 and the longitudinal door seal structural member 702 cannot deform due to the U-shaped through opening part 6,
starting a clamping and die assembly 1 on the door seal welding equipment, correspondingly clamping the transverse door seal structural member 701 and the longitudinal door seal structural member 702 at a feeding position 8 of a welding die 4, and correspondingly enabling a shielding piece 2 inserted into a U-shaped through opening part 6 at a 45-degree slope surface on the transverse door seal structural member 701 to be mutually matched with the 45-degree slope surface at the end part of the longitudinal door seal structural member 702, or enabling a shielding piece 2 inserted into the U-shaped through opening part 6 at the 45-degree slope surface at the end part of the longitudinal door seal structural member 702 to be mutually matched with the 45-degree slope surface at the end part of the transverse door seal structural member 701;
step five, welding, heating and die assembly: opening a heating button of a welding mould 4 on the door seal welding equipment, welding and heating a shielding piece 2 inserted into a U-shaped through opening part 6 at a 45-degree slope surface on the transverse door seal structural member 701 and the 45-degree slope surface at the end part of the longitudinal door seal structural member 702, or welding and heating a shielding piece 2 inserted into the U-shaped through opening part 6 at the 45-degree slope surface on the end part of the longitudinal door seal structural member 702 and the 45-degree slope surface on the end part 701 of the transverse door seal structural member, wherein the shielding piece 2 is inserted into the U-shaped through opening part 6 at the moment, so that the transverse door seal structural member 701 or the excess material of the longitudinal door seal structural member 702 which is melted at high temperature can be blocked, and due to the blocking effect of the material and the shielding piece 2, the U-shaped through opening part 6 cannot be adhered to the corresponding 45-degree slope surface on one side of the transverse door seal structural member 701, and the 45-degree slope surface on the end part of the longitudinal door seal structural member 702 at other parts without the U-shaped through opening part 6 can be adhered to the 45-degree slope surface on the transverse door seal structural member 701 The slope surfaces are welded and adhered into a whole, so that the transverse door seal structural member 701 and the longitudinal door seal structural member 702 are not adhered to each other inside the U-shaped through opening part 6;
step six, demolding: open door and seal welding equipment and make welding mould 4 detached button, make welding mould 4 on the welding equipment separately, after the welding heating adhesion the U-shaped portion 6 of wearing of horizontal door seal structure 701 or take out shielding piece 2 in the U-shaped portion 6 of wearing of vertical door seal structure 702 horizontal door seal structure 701 with 45 slopes department that vertical door seal structure 702 corresponds can form U-shaped portion 6 of wearing, and U-shaped portion 6 of wearing enables whole door seal structure 7 air discharge after the welding process 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 freezer door body, can not make the freezer door body close not tightly and produce the condensation phenomenon because of the inside negative pressure of whole door seal structure 7.
In order to enable the shielding piece 2 to be matched with the U-shaped through opening part 6, the shielding piece 2 can effectively block welding excess materials, and the welding excess materials are prevented from entering the U-shaped through opening part 6 to cause blockage, furthermore, the shielding piece 2 used in the welding processing process of the door seal structural member 3 is optimally designed, wherein the shielding piece 2 is integrally spoon-shaped, the lower part of the shielding piece 2 is provided with a heat insulation part 201, and the heat insulation part 201 can block the excess materials of the transverse door seal structural member 701 or the longitudinal door seal 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 piece 2 are matched with the shape and size of the U-shaped through opening 6, so that the heat insulation part 201 at the lower part of the shielding piece 2 can be ensured to be inserted into the U-shaped through opening 6.
In order to meet the requirement that the door seal welding equipment and the corresponding welding mould 4 used by the door seal structural part 3 in the welding process can be used for welding the door seal structural part 3 into a whole frame-shaped door seal structural part 7 finished product, further, the welding mould 4 on the door seal welding equipment is provided with a heating iron 5, when welding and heating are carried out, the temperature range of the heating iron 5 on the welding mould 4 is 750-800 ℃, the time for welding and heating is 3-4 s, and the power of the door seal welding equipment is 2.5 KW.
In order to ensure that this type of door seals structure 3 and welds into whole frame shape door and seals structure 7 and produce the finished product after, whole frame shape door seals structure 7 and produces the finished product and install in the inboard draw-in groove of the freezer door body that corresponds, whole frame shape door seals structure 7 and produces between finished product and the freezer door body draw-in groove inner wall sealed laminating nature good, furtherly, the lower part outside of evagination block portion 305 is equipped with C shape laminating portion 308, and C shape laminating portion 308 can improve sealed laminating nature between the lower bottom of evagination block portion 305 and the freezer door body draw-in groove inner wall.
In order to weld this type of door and seal structure 3 and become whole frame shape door and seal structure 7 and produce the finished product after, whole frame shape door seals structure 7 and produces the finished product and install in the inboard draw-in groove of the freezer door body that corresponds, in order to further improve whole frame shape door seals structure 7 and produce the sealing performance between finished product and the freezer inner bag, further, the inboard of door seals structure 3 left surface is equipped with reinforcing leaflet portion 309, and reinforcing leaflet portion 309 can further improve the sealing performance between door seals structure 3 and the freezer inner bag.
Example 1:
referring to fig. 1 to 7, a door seal structure for a refrigerator, comprising an integral door seal structure 7, wherein the integral door seal structure 7 is a frame-shaped integral structure, the integral door seal structure 7 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-shaped seal surface 301, the inner side of the lower part of the arc-shaped seal surface 301 is provided with an S-shaped support 302, the upper part of the S-shaped support 302 and the lower part of the arc-shaped seal surface 301 are connected into a whole, the lower part of the S-shaped support 302 is provided with a transverse middle support connecting surface 303, the lower part of the transverse middle support connecting surface 303 is provided with parallel hollow air chambers 304, the bottom of the hollow air chambers 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 parallel hollow air chambers 304 can increase the support stability of the door seal structural member 3, the S-shaped support 302 and the parallel hollow air chambers 304 can prevent the door seal structural member 3 from collapsing and deforming, ensure that the whole door seal structural member 7 stands upright, is full and is not easy to deform,
the outside of the right side surface of the door seal structural member 3 is provided with a first sealing and attaching part 307 and a second sealing and attaching part 306, and the first sealing and attaching part 307 and the second sealing and attaching part 306 can enable the outside of the right side surface of the door seal structural member 3 to be in sealing and attaching with a contact area of the inside of the refrigerator door body;
the U-shaped penetrating part 6 is arranged below the second sealing and adhering part 306, the U-shaped penetrating part 6 penetrates through the right side face of the door seal structural part 3 from the lower side of the second sealing and adhering part 306 to the inside, the U-shaped penetrating part 6 penetrates through the S-shaped support 302 inside the door seal structural part 3 along the oblique upper side, the U-shaped penetrating part 6 cannot penetrate through the left side face and the arc seal face 301 of the door seal structural part 3, the U-shaped penetrating part 6 can effectively eliminate negative pressure inside the whole door seal structural part 7 after welding, and good air exhaust performance of the refrigerator door seal structural part 3 after welding is ensured.
The welding processing method of the door seal structural member 3 is subjected to overall improvement and optimization design, and comprises the following specific steps:
step one, beveling: the end parts of the transverse door seal structural member 701 and the longitudinal door seal structural member 702 are obliquely cut by using a cutting device, so that the end parts of the transverse door seal structural member 701 and the longitudinal door seal structural member 702 are processed into 45-degree slope surfaces, and the 45-degree slope surfaces of the end parts of the transverse door seal structural member 701 and the 45-degree slope surfaces of the end parts of the longitudinal door seal structural member 702 are ensured to be correspondingly matched with each other;
step two, processing the U-shaped penetrating part 6: u-shaped through parts 6 are processed below the second sealing and attaching parts 306 of the outer sides of the right side surfaces of the transverse door sealing structural part 701 and the longitudinal door sealing structural part 702 by using through processing equipment, so that the U-shaped through parts 6 penetrate through the right side surface of the door sealing structural part 3 from the lower part of the second sealing and attaching parts 306 to the inside, the U-shaped through parts 6 penetrate through the S-shaped support 302 in the door sealing structural part 3 along the oblique upper part, but cannot penetrate through the left side surface and the arc-shaped sealing surface 301 of the door sealing structural part 3;
step three, aligning and feeding the door seal structural part 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 mould 4 in door seal welding equipment to ensure that a 45-degree slope surface at the end part of the transverse door seal structural member 701 can be correspondingly matched with a 45-degree slope surface at the end part of the longitudinal door seal structural member 702;
step four, inserting and blocking the shielding piece 2: the shielding piece 2 is inserted into the U-shaped through opening 6 at the 45-degree slope of the end of the transverse door seal structural member 701, or the shielding piece 2 is inserted into the U-shaped through opening 6 at the 45-degree slope of the end of the longitudinal door seal structural member 702, at this time, the support of the shielding piece 2 can ensure that the transverse door seal structural member 701 and the longitudinal door seal structural member 702 cannot deform due to the U-shaped through opening 6,
starting a clamping and die assembly 1 on the door seal welding equipment, correspondingly clamping a transverse door seal structural member 701 and a longitudinal door seal structural member 702 at a feeding part 8 of a welding die 4, inserting a shielding sheet 2 into a U-shaped through opening part 6 at a 45-degree slope surface on the transverse door seal structural member 701, and correspondingly matching the 45-degree slope surface at the end part of the longitudinal door seal structural member 702, or inserting a shielding sheet 2 into the U-shaped through opening part 6 at the 45-degree slope surface at the end part of the longitudinal door seal structural member 702, and correspondingly matching the 45-degree slope surface at the end part of the transverse door seal structural member 701;
step five, welding, heating and die assembly: a heating button of a welding mould 4 on the door seal welding equipment is opened, a shielding plate 2 is inserted into a U-shaped through opening part 6 at a 45-degree slope surface on a transverse door seal structural member 701 and is welded and heated with the 45-degree slope surface at the end part of a longitudinal door seal structural member 702, or a shielding plate 2 is inserted into the U-shaped through opening part 6 at the 45-degree slope surface on the end part of the longitudinal door seal structural member 702 and is welded and heated with the 45-degree slope surface at the end part 701 of the transverse door seal structural member, at the moment, the shielding plate 2 is inserted into the U-shaped through opening part 6 and can block the transverse door seal structural member 701 or the residual material of the longitudinal door seal structural member 702 which is melted at high temperature, one side of the U-shaped through opening part 6 is processed, due to the blocking effect of the small amount of materials and the shielding plate 2, the U-shaped through opening part 6 cannot be adhered with the corresponding 45-degree slope surface, and the 45-degree slope surface on the transverse door seal structural member 701 without the U-shaped through opening part 6 can be welded and adhered with the 45-degree slope surface at the end part of the longitudinal door seal structural member 702 into a whole, therefore, the transverse door seal structural member 701 and the longitudinal door seal structural member 702 are not adhered to each other inside the U-shaped through opening part 6;
step six, demolding: the button for separating the welding mold 4 by opening the door seal welding equipment is used for separating the welding mold 4 on the welding equipment, and the shielding piece 2 is taken out from the U-shaped through part 6 of the transverse door seal structural member 701 or the U-shaped through part 6 of the longitudinal door seal structural member 702 after welding, heating and adhesion, so that the U-shaped through part 6 can be formed at the 45-degree slope surface corresponding to the transverse door seal structural member 701 and the longitudinal door seal structural member 702, the U-shaped through part 6 can enable the whole door seal structural member 7 after welding to have good air exhaust performance, the negative pressure inside the whole door seal structural member 7 after welding is effectively eliminated, and the phenomenon that condensation is generated when the whole door seal structural member 7 is installed on a refrigerator door body and used without closing the refrigerator door body due to the negative pressure inside the whole door seal structural member 7 is avoided;
wherein: the whole shielding sheet 2 is 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 excess materials of the high-temperature molten transverse door seal structural component 701 or longitudinal door seal structural component 702;
the shape and size of the heat insulation part 201 at the lower part of the shielding piece 2 are matched with the shape and size of the U-shaped through opening 6, so that the heat insulation part 201 at the lower part of the shielding piece 2 can be ensured to be inserted into the U-shaped through opening 6.
The welding die 4 on the door seal welding equipment is provided with the heating iron 5, when welding heating is carried out, the temperature range of the heating iron 5 on the welding die 4 is 750-800 ℃, the time for welding heating is 3-4 s, and the power of the door seal welding equipment is 2.5 KW.
Example 2:
referring to fig. 1 to 7, and particularly to fig. 2, the overall part of a door seal structure for a refrigerator and the specific steps of the welding method for the door seal structure 3 are the same as those in embodiment 1, except that: the setting is in the horizontal well support of 4 lower parts of S type support even face 6, the lower part that holds in the palm even face 6 in the horizontal is equipped with cavity air chamber 10 side by side, the quantity of cavity air chamber 10 side by side can be one or two or three or four, wherein the quantity of cavity air chamber 10 side by side most preferably is four, and simultaneously, in order to ensure that this type of door seals structure 3 welds into whole frame shape door seal structure 7 and produces the finished product after, whole frame shape door seal structure 7 produces the finished product and installs when in the draw-in groove of the inboard freezer door body that corresponds, sealed laminating nature is good between whole frame shape door seal structure 7 product and the freezer door body draw-in groove inner wall, the lower part outside of evagination block portion 305 is equipped with C shape laminating portion 308, C shape laminating portion 308 can improve sealed laminating nature between the lower bottom of evagination block portion 305 and the freezer door body draw-in groove inner wall.
Example 3:
referring to fig. 1 to 7, and particularly to fig. 2, the overall part of a door seal structure for a refrigerator and the specific steps of the welding method for the door seal structure 3 are the same as those in embodiment 1, except that: the setting is in the violently of 4 lower parts of S type support and is held in the palm even face 6 in the cross, the lower part that holds in the palm even face 6 in the cross is equipped with cavity air chamber 10 side by side, the quantity of cavity air chamber 10 side by side can be one or two or three or four, wherein most preferably the quantity of cavity air chamber 10 side by side is four, and simultaneously, in order to after this type door seals structure 3 welds into whole frame shape door seals structure 7 product, when whole frame shape door seals structure 7 product is installed in the draw-in groove of corresponding freezer door body inboard, in order to further improve the sealing performance between whole frame shape door seals structure 7 product and the freezer inner bag, the inboard of door seals structure 3 left surface is equipped with reinforcing leaflet portion 309, reinforcing leaflet portion 309 can further improve the sealing performance between door seals structure 3 and the freezer inner bag.
The invention can effectively prevent the door seal structural member 3 from collapsing and deforming integrally, solves the problems that the vent hole at the welding position of the existing refrigerator door seal structural member is easy to block and the welding adhesion occurs, can effectively eliminate the negative pressure in the refrigerator door seal structural member, ensures that the refrigerator door seal structural member after welding processing has good air discharge performance, and the vent hole can not be blocked due to welding adhesion, and is suitable for being popularized and used in the manufacture of refrigerator door seal structural member products made of various materials such as PVC, TPE, TPEE and the like.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications are all within the scope of the present invention.
Claims (6)
1. A door sealing structure for a refrigerator comprises an integral door sealing structure, wherein the integral door sealing structure is in a frame shape and is formed by welding the end part of a transverse door sealing structure and the end part of a longitudinal door sealing structure, the door sealing structure is a structure with a cavity, an arc sealing surface is arranged at the upper top part of the door sealing structure, an S-shaped support is arranged at the inner side of the lower part of the arc sealing surface, the upper part of the S-shaped support is connected with the lower part of the arc sealing surface into a whole, a transverse middle supporting connecting surface is arranged at the lower part of the S-shaped support, side-by-side hollow air chambers are arranged at the lower part of the transverse middle supporting connecting surface, a bottom support connecting surface is arranged at the bottom of each hollow air chamber, an outer convex clamping part is arranged at the right side of the bottom support connecting surface, the integral door sealing structure can be stably embedded in a clamping groove of a refrigerator door body through the outer convex clamping part, the side-by side hollow air chambers can increase the supporting stability of the door sealing structure, and the S-shaped support and the side-by side hollow air chambers can prevent the door sealing structure from collapsing and deforming, ensures that the whole door sealing structural member is upright, full and uneasy to deform,
the outer side of the right side face of the door sealing structural member is provided with a first sealing and pasting part and a second sealing and pasting part, and the first sealing and pasting part and the second sealing and pasting part can enable the outer side of the right side face of the door sealing structural member to be in sealing fit with a contact area of the inner side of the refrigerator door body;
the refrigerator door seal structure is characterized in that a U-shaped penetrating part is arranged below the sealing and attaching part II, the U-shaped penetrating part penetrates through the right side face of the door seal structure inwards from the lower part of the sealing and attaching part II, the U-shaped penetrating part penetrates through the S-shaped support inside the door seal structure along the oblique upper part, the U-shaped penetrating part cannot penetrate through the left side face and the arc seal face of the door seal structure, the U-shaped penetrating part can effectively eliminate negative pressure inside the whole door seal structure after welding, and good air discharge performance of the refrigerator door seal structure after welding is ensured.
2. The welding processing method of the door seal structure for the refrigerator according to claim 1, comprising the following steps:
1) beveling: the cutting device is used for carrying out beveling processing on the end parts of the transverse door seal structural member and the longitudinal door seal structural member, so that the end part of the transverse door seal structural member and the end part of the longitudinal door seal structural member are processed into 45-degree slope surfaces, and the 45-degree slope surface of the end part of the transverse door seal structural member and the 45-degree slope surface of the end part of the longitudinal door seal structural member are ensured to be correspondingly matched with each other;
2) processing a U-shaped penetrating part: using a piercing processing device to process U-shaped piercing parts below the second sealing and attaching parts on the outer sides of the right side surfaces of the transverse door sealing structural part and the longitudinal door sealing structural part, ensuring that the U-shaped piercing parts penetrate through the right side surfaces of the door sealing structural part from the lower parts of the second sealing and attaching parts to the inner side, and penetrating through the S-shaped supports in the door sealing structural part along the oblique upper part but not penetrating through the left side surface and the arc sealing surface of the door sealing structural part;
3) door seals structure aligns the material loading: correspondingly placing the processed transverse door seal structural member and the processed longitudinal door seal structural member at a feeding position of a welding mould in door seal welding equipment, and ensuring that a 45-degree slope surface at the end part of the transverse door seal structural member is correspondingly matched with a 45-degree slope surface at the end part of the longitudinal door seal structural member;
4) the shielding piece is inserted and blocked: a shielding piece is inserted into the U-shaped penetrating opening part at the 45-degree slope surface of the end part of the transverse door seal structural member, or a shielding piece is inserted into the U-shaped penetrating opening part at the 45-degree slope surface of the end part of the longitudinal door seal structural member, at the moment, the transverse door seal structural member and the longitudinal door seal structural member can be ensured not to deform due to the U-shaped penetrating opening part through the support of the shielding piece,
starting a clamping and die assembly on the door seal welding equipment, correspondingly clamping the transverse door seal structural member and the longitudinal door seal structural member at the feeding position of a welding die, and correspondingly enabling a shielding piece to be inserted into a U-shaped through opening part at a 45-degree slope surface on the transverse door seal structural member to be mutually matched with the 45-degree slope surface at the end part of the longitudinal door seal structural member, or enabling a shielding piece to be inserted into the U-shaped through opening part at the 45-degree slope surface at the end part of the longitudinal door seal structural member to be mutually matched with the 45-degree slope surface at the end part of the transverse door seal structural member;
5) welding, heating and die assembly: opening a heating button of a welding mould on door seal welding equipment, welding and heating a shielding piece inserted into a U-shaped through opening part at a 45-degree slope surface on a transverse door seal structural member and the 45-degree slope surface at the end part of a longitudinal door seal structural member, or welding and heating a shielding piece inserted into the U-shaped through opening part at the 45-degree slope surface at the end part of the longitudinal door seal structural member and the 45-degree slope surface at the end part of the transverse door seal structural member, wherein the shielding piece inserted into the U-shaped through opening part can block the transverse door seal structural member or the excess material of the longitudinal door seal structural member which is melted at high temperature, one side processed with the U-shaped through opening part cannot be adhered to the corresponding 45-degree slope surface due to the blocking effect of the material and the shielding piece, and the 45-degree slope surface on the transverse door seal structural member without the U-shaped through opening part can be welded to the 45-degree slope surface at the end part of the longitudinal door seal structural member into a whole, therefore, the transverse door seal structural part and the longitudinal door seal structural part are not adhered to each other in the U-shaped penetrating opening part;
6) demolding: open a door and seal welding equipment and make the detached button of welding mould, make the welding mould on the welding equipment separately, from after the welding heating adhesion the mouth part is worn to the U-shaped of horizontal door seal structure or take out in the mouth part is worn to the U-shaped of vertical door seal structure and shelter from the piece, like this horizontal door seal structure with 45 slope departments that vertical door seal structure corresponds can form the U-shaped mouth part of wearing, and the U-shaped mouth part of wearing enables whole door seal structure exhaust property after the welding process 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 behind the freezer door body, can not be because of the inside negative pressure of whole door seal structure, and make the freezer door body close not tight and produce the condensation phenomenon.
3. The novel door seal structural member for the refrigerator as claimed in claim 2, wherein the shielding sheet is spoon-shaped as a whole, and a heat insulating portion is provided at a lower portion of the shielding sheet, and the heat insulating portion can block excess materials of the transverse door seal structural member or the longitudinal door seal structural member which are melted at a high temperature;
the shape and the size of the heat insulation part at the lower part of the shielding piece are matched with those of the U-shaped opening part, so that the heat insulation part at the lower part of the shielding piece can be ensured to be inserted into the U-shaped opening part.
4. The novel door seal structure for the refrigerator as claimed in claim 2, wherein the welding mold on the door seal welding equipment has a heating iron, when welding and heating are performed, the temperature range of the heating iron on the welding mold is 750-800 ℃, the time for welding and heating is 3-4 s, and the power of the door seal welding equipment is 2.5 KW.
5. The novel door seal structure for the refrigerator as claimed in claim 1, wherein a C-shaped fitting portion is provided on the outer side of the lower portion of the protruding engaging portion, and the C-shaped fitting portion can improve the sealing fit between the lower bottom of the protruding engaging portion and the inner wall of the groove of the refrigerator door body.
6. The novel door seal structure for the refrigerator as claimed in claim 1, wherein the door seal structure has a reinforcing leaf portion on the inner side of the left side surface, and the reinforcing leaf portion can further improve the sealing performance between the door seal structure and the refrigerator inner container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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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| Publication Number | Publication Date |
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| CN114234541A true CN114234541A (en) | 2022-03-25 |
| CN114234541B CN114234541B (en) | 2023-06-06 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1401961A (en) * | 2001-08-21 | 2003-03-12 | 株式会社东芝 | Magnetic filler sealing member structure of refrigerator door |
| CN101107488A (en) * | 2005-01-25 | 2008-01-16 | 利布赫尔家用器具奥克森豪森股份有限公司 | Refrigerator and/or freezer |
| CN102564021A (en) * | 2012-02-01 | 2012-07-11 | 济南宇翔制冷设备有限公司 | Refrigerator door and processing method thereof |
| 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 |
| US20190093941A1 (en) * | 2016-05-26 | 2019-03-28 | Hefei Hualing Co.,Ltd. | Door seal and refrigeration container having same |
| 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 |
-
2021
- 2021-12-15 CN CN202111536890.4A patent/CN114234541B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1401961A (en) * | 2001-08-21 | 2003-03-12 | 株式会社东芝 | Magnetic filler sealing member structure of refrigerator door |
| CN101107488A (en) * | 2005-01-25 | 2008-01-16 | 利布赫尔家用器具奥克森豪森股份有限公司 | Refrigerator and/or freezer |
| CN102564021A (en) * | 2012-02-01 | 2012-07-11 | 济南宇翔制冷设备有限公司 | Refrigerator door and processing method thereof |
| US20190093941A1 (en) * | 2016-05-26 | 2019-03-28 | Hefei Hualing Co.,Ltd. | Door seal and refrigeration container having same |
| 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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| CN114234541B (en) | 2023-06-06 |
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