Hot melting cooling device

Abstract

The utility model discloses a hot melting cooling device which comprises a welding die, the welding die comprises two half dies which are symmetrically arranged, a cooling groove is formed in one side, close to the other half die, of each half die, each half die is provided with a welding cavity, one end of each welding cavity is communicated with the corresponding cooling groove, and a cavity collision surface is arranged at a port of each welding cavity. The cavity collision face is located in the cooling groove and is annular, and the inner side of the cavity collision face forms a port of the welding cavity. And the two half molds are closed, so that the two cooling grooves form a cooling channel, the two welding cavities are communicated, and the collision surfaces of the two cavities abut against each other. The welding die is provided with an air inlet channel to be communicated with the cooling channel, and the welding die is provided with an exhaust channel to be communicated with the cooling channel. According to the hot melting cooling device, burrs can be rapidly cooled, so that the burrs are conveniently trimmed, product explosion is prevented, and the yield of products is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of welding equipment, in particular to a hot-melt cooling device. Background Art

[0002] The magnetic door seals used in household appliances such as refrigerators are composed of soft plastic and a plastic strip with a single-sided magnetic force. The plastic strip is inserted into the door seal, and the two door seals are fixed together by welding. Usually, the two door seals are inserted into two mold cavities respectively, and one end of the door seal protrudes from the mold. When one end of the door seal is heated to a molten state, the two molds are brought together to weld the two door seals together, and burrs will be generated at the weld. Due to the high local temperature, the product is easily torn and broken during the process of opening the mold to cut the burrs, or it may cause secondary burrs on the product, requiring secondary trimming, which is time-consuming and labor-intensive. Utility Model Content

[0003] The utility model aims to solve one of the technical problems in the related art at least to a certain extent. To this end, the utility model provides a hot melt cooling device.

[0004] The present invention provides a hot melt cooling device, which comprises:

[0005] A welding mold comprises two symmetrically arranged half molds, wherein a cooling groove is provided on one side of the half mold close to the other half mold, and the half mold is provided with a welding cavity, one end of the welding cavity is connected to the cooling groove and a cavity collision surface is provided at its port, the cavity collision surface is located in the cooling groove, the cavity collision surface is annular and its inner side constitutes the port of the welding cavity; the two half molds are closed so that the two cooling grooves constitute a cooling channel, the two welding cavities are connected and the two cavity collision surfaces abut;

[0006] The welding mold is provided with an air inlet channel and an air exhaust channel connected to the cooling channel.

[0007] According to the hot melt cooling device of the embodiment of the utility model, at least the following technical effects are achieved: two door seals are respectively inserted into the welding cavities of two half molds, one end of the door seal is heated to a molten state, the two half molds are closed to weld the two door seals, burrs are generated at the welding point and heat is transferred to the collision surface of the cavity, gas enters the cooling channel through the air inlet channel, the gas cools the collision surface of the cavity and the gas carrying heat is discharged through the exhaust channel. The hot melt cooling device can quickly cool burrs, so as to facilitate trimming of burrs and prevent product explosion, thereby improving the product yield.

[0008] According to some embodiments of the present invention, the cooling groove is provided with a notch to penetrate the side wall of the half mold, and the two half molds are molded together so that the two notches constitute the exhaust channel.

[0009] According to some embodiments of the present invention, the half mold is provided with a plurality of welding cavities arranged at intervals, and the plurality of welding cavities of one half mold corresponds one to one with the plurality of welding cavities of another half mold.

[0010] According to some embodiments of the utility model, a first stop is provided between two adjacent cavity collision surfaces of the same half mold, and the two half molds are clamped so that the first stop of one half mold fits with the first stop of the other half mold.

[0011] According to some embodiments of the utility model, in the same half mold, a second stop is provided between the cavity collision surface located on one side and the groove wall of the cooling groove, and the two half molds are clamped so that the second stop of one half mold fits with the second stop of the other half mold, and the first stop and the second stop cooperate together to separate the cooling channel into a first channel and a second channel, and the first channel and the second channel are connected.

[0012] According to some embodiments of the present invention, the intake passage is communicated with the first passage, and the exhaust passage is communicated with the second passage.

[0013] According to some embodiments of the utility model, the two half molds are provided with the air intake channel, and the half molds are provided with multiple air intake branch pipes. The air intake channel is respectively connected to the multiple air intake branch pipes, and one end of the air intake branch pipe is connected to the cooling groove.

[0014] According to some embodiments of the utility model, the welding mold is provided with a connecting channel, the connecting channel is communicated with the air inlet channel, and a plug is detachably connected to the connecting channel to seal the connecting channel.

[0015] According to some embodiments of the present invention, the air intake channel extends along a first direction, the connecting channel extends along a second direction, and the first direction is perpendicular to the second direction.

[0016] According to some embodiments of the utility model, the half mold includes a front mold and a rear mold, the front mold and the rear mold are detachably connected, the rear side of the front mold is provided with a first groove, the front side of the rear mold is provided with a second groove, and the front mold and the rear mold are connected to form the welding cavity.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 It is a schematic diagram of the structure of the hot melt cooling device of some embodiments of the utility model;

[0020] Figure 2 is an exploded view of a hot melt cooling device of some embodiments of the utility model;

[0021] Figure 3 is a cross-sectional view of a hot melt cooling device of some embodiments of the utility model;

[0022] Figure 4 It is a schematic diagram of the structure of the half mold of some embodiments of the utility model;

[0023] Figure 5 It is an exploded view of half molds of some embodiments of the utility model.

[0024] Figure Number:

[0025] Welding mold 100, half mold 110, front mold 120, rear mold 130, first groove 141, second groove 142, cooling groove 150, notch 151, welding cavity 160, cavity collision surface 170, first stopper 181, second stopper 182;

[0026] The cooling channel 200 , the first channel 201 , the second channel 202 , the air intake channel 210 , the air intake branch pipe 211 , the exhaust channel 220 , the connecting channel 230 , and the door seal 240 . DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] In the description of the present utility model, the meaning of "more than" is more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0030] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0031] The following is a further description of the embodiments of the present invention in conjunction with the accompanying drawings.

[0032] According to some embodiments of the present invention, referring to Figures 1 to 4 The hot melt cooling device includes a welding mold 100, and the welding mold 100 includes two half molds 110 symmetrically arranged in the left and right directions. A cooling groove 150 is provided on one side of the half mold 110 close to the other half mold 110. The half mold 110 is provided with a welding cavity 160, one end of the welding cavity 160 is connected to the cooling groove 150 and a cavity collision surface 170 is provided at its port, and the other end of the welding cavity 160 passes through the half mold 110, and the cavity collision surface 170 is located in the cooling groove 150, and the cavity collision surface 170 is annular, and the inner side of the cavity collision surface 170 constitutes the port of the welding cavity 160. After the two half molds 110 are molded, the two cooling grooves 150 together constitute a cooling channel 200, the two welding cavities 160 are connected, and the two cavity collision surfaces 170 abut against each other. The welding mold 100 is provided with an air inlet channel 210 to communicate with the cooling channel 200 , and the welding mold 100 is provided with an air exhaust channel 220 to communicate with the cooling channel 200 .

[0033] Reference Figure 3 and Figure 4When two door seals 240 need to be welded, one door seal 240 is inserted from right to left into the welding cavity 160 of the half mold 110 on the right side, and the other door seal 240 is inserted from left to right into the welding cavity 160 of the half mold 110 on the left side. The left end of the door seal 240 on the right side extends 2 to 3 mm to the left of the cavity collision surface 170, and the right end of the door seal 240 on the left side extends 2 to 3 mm to the right of the cavity collision surface 170. When one end of the door seal 240 located at the cavity collision surface 170 is heated to a molten state, the two half molds 110 are closed, the cavity collision surfaces 170 of the two half molds 110 abut against each other, and the two partial door seals 240 extending out of the cavity collision surface 170 are quickly joined, so that the heated ends of the two door seals 240 are welded, burrs are generated at the weld, and the edge material penetrates into the cooling channel 200 through the gap between the two cavity collision surfaces 170, and the heat is transferred to the cavity collision surface 170. The gas enters the cooling channel 200 through the air inlet channel 210, and the gas cools the cavity collision surface 170 and the edge material. The gas carrying the heat is then discharged through the exhaust channel 220, thereby completing the cooling of the burr for subsequent processing. The hot melt cooling device can quickly cool the burr, so as to trim the burr and prevent the product from bursting, thereby improving the product yield.

[0034] Preferably, refer to Figure 3 The welding cavity 160 and the half mold 110 form an angle of 45 degrees, and the two welding cavities 160 are connected to each other at a right angle.

[0035] Preferably, refer to Figure 4 The cavity collision surface 170 is based on the cross-sectional profile of the product being thickened outward by about 0.7mm-1mm and having a height of about 1.5mm-2mm. The end face of the cavity collision surface 170 is at an angle of about 45 degrees to the outer peripheral surface profile. During the collision and closing process of the two half molds 110, a space can be created for the molten edge material to be discharged, that is, the edge material enters the cooling channel 200.

[0036] Further, see Figure 1 and Figure 4 The cooling groove 150 is provided with a notch 151 to penetrate the side wall of the half mold 110. The two half molds 110 are molded together so that the two notches 151 constitute the exhaust channel 220. The exhaust channel 220 formed in this way can avoid the need to drill holes in the half mold 110 to form the exhaust channel 220. The notch 151 can be formed together when the half mold 110 is manufactured.

[0037] Further, see Figure 4The half mold 110 is provided with a plurality of welding cavities 160 spaced apart in the up-and-down direction. The plurality of welding cavities 160 of one half mold 110 correspond one-to-one to the plurality of welding cavities 160 of the other half mold 110, so that a plurality of pairs of door seals 240 can be welded together, thereby improving work efficiency.

[0038] According to some embodiments of the present invention, referring to Figure 4 In the same half mold 110, a first stopper 181 is provided between two adjacent cavity collision surfaces 170. The two half molds 110 are clamped so that the first stopper 181 of one half mold 110 fits with the first stopper 181 of the other half mold 110 to ensure that the gas in the cooling channel 200 can stably pass through the multiple cavity collision surfaces 170, thereby preventing the gas from directly flowing away between two of the cavity collision surfaces 170, causing some of the remaining cavity collision surfaces 170 to be unable to be cooled.

[0039] Further, see Figure 4 In the same half mold 110, a second stopper 182 is provided between the uppermost cavity collision surface 170 and the upper groove wall of the cooling groove 150. The two half molds 110 are molded so that the second stopper 182 of one half mold 110 fits with the second stopper 182 of the other half mold 110. The first stopper 181 and the second stopper 182 cooperate to separate the cooling channel 200 into a first channel 201 and a second channel 202. The air intake channel 210 is connected to the first channel 201, the air exhaust channel 220 is connected to the second channel 202, and the lower end of the first channel 201 is connected to the lower end of the second channel 202. After the gas in the air inlet channel 210 enters the first channel 201, it flows downward to bypass the cavity collision surface 170 located at the lowermost side and then enters the second channel 202. The exhaust channel 220 is connected to the upper groove wall of the cooling groove 150 to ensure that the gas flows along a "U" shape as a whole, ensuring that the gas can stably pass through multiple cavity collision surfaces 170 to evenly cool the burrs.

[0040] Further, see Figure 4 The two half molds 110 are each provided with an air inlet channel 210, and the half mold 110 is provided with a plurality of air inlet branches 211, and the air inlet channel 210 is respectively connected to the plurality of air inlet branches 211, and one end of the air inlet branch 211 is connected to the cooling groove 150. The plurality of air inlet branches 211 can ensure that the gas can quickly and evenly fill the cooling channel 200.

[0041] According to some embodiments of the present invention, referring to Figure 4The welding mold 100 is provided with a connecting channel 230, which is connected to the air inlet channel 210. A plug is detachably connected to the connecting channel 230 to block the connecting channel 230. When the gas flow needs to be increased, gas can be added into the cooling channel 200 through the connecting channel 230, and impurities in the cooling channel 200 can also be cleaned through the connecting channel 230 to avoid blockage of the cooling channel 200. The air inlet channel 210 extends along a first direction, and the connecting channel 230 extends along a second direction, and the first direction is perpendicular to the second direction. The first direction is the front-to-back direction, and the second direction is the up-down direction.

[0042] According to some embodiments of the present invention, referring to Figure 5 The half mold 110 includes a front mold 120 and a rear mold 130, the front mold 120 and the rear mold 130 are detachably connected, the rear side of the front mold 120 is provided with a first groove 141, the front side of the rear mold 130 is provided with a second groove 142, and the front mold 120 and the rear mold 130 are connected to form a welding cavity 160. When the welded door seal 240 needs to be demolded, the front mold 120 and the rear mold 130 of the two half molds 110 are separated from each other in the front-to-back direction.

[0043] In the description of this specification, the description with reference to the term "some embodiments" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0044] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A hot melt cooling device, characterized in that: include: A welding mold (100) comprises two symmetrically arranged half molds (110), wherein a cooling groove (150) is provided on one side of the half mold (110) close to the other half mold (110), and the half mold (110) is provided with a welding cavity (160), one end of the welding cavity (160) is connected to the cooling groove (150) and a cavity collision surface (170) is provided at its end, the cavity collision surface (170) is located in the cooling groove (150), the cavity collision surface (170) is annular and its inner side constitutes the end of the welding cavity (160); the two half molds (110) are combined so that the two cooling grooves (150) constitute a cooling channel (200), the two welding cavities (160) are connected and the two cavity collision surfaces (170) are abutted; The welding mold (100) is provided with an air intake channel (210) and an air exhaust channel (220) which are connected to the cooling channel (200).

2. The hot melt cooling device according to claim 1, characterized in that: The cooling groove (150) is provided with a notch (151) to penetrate the side wall of the half mold (110), and the two half molds (110) are molded together so that the two notches (151) form the exhaust channel (220).

3. The hot melt cooling device according to claim 1, characterized in that: The half mold (110) is provided with a plurality of welding cavities (160) arranged at intervals, and the plurality of welding cavities (160) of one half mold (110) corresponds one-to-one to the plurality of welding cavities (160) of another half mold (110).

4. The hot melt cooling device according to claim 3, characterized in that: A first stopper (181) is provided between two adjacent cavity collision surfaces (170) of the same half mold (110), and the two half molds (110) are molded together so that the first stopper (181) of one half mold (110) fits with the first stopper (181) of the other half mold (110).

5. The hot melt cooling device according to claim 4, characterized in that: In the same half mold (110), a second stopper (182) is provided between the cavity collision surface (170) located on one side and the groove wall of the cooling groove (150); the two half molds (110) are joined so that the second stopper (182) of one half mold (110) and the second stopper (182) of the other half mold (110) fit each other; the first stopper (181) and the second stopper (182) cooperate to separate the cooling channel (200) into a first channel (201) and a second channel (202); the first channel (201) and the second channel (202) are connected.

6. The hot melt cooling device according to claim 5, characterized in that: The intake passage (210) is in communication with the first passage (201), and the exhaust passage (220) is in communication with the second passage (202).

7. The hot melt cooling device according to claim 1, characterized in that: The two half molds (110) are each provided with the air intake channel (210), and the half mold (110) is provided with a plurality of air intake branch pipes (211). The air intake channel (210) is respectively connected to the plurality of air intake branch pipes (211), and one end of the air intake branch pipe (211) is connected to the cooling groove (150).

8. The hot melt cooling device according to claim 1, characterized in that: The welding mold (100) is provided with a connecting channel (230), the connecting channel (230) is in communication with the air inlet channel (210), and a plug is detachably connected to the connecting channel (230) to seal the connecting channel (230).

9. The hot melt cooling device according to claim 8, characterized in that: The air inlet channel (210) extends along a first direction, and the connecting channel (230) extends along a second direction, and the first direction is perpendicular to the second direction.

10. The hot melt cooling device according to claim 1, characterized in that: The half mold (110) comprises a front mold (120) and a rear mold (130), wherein the front mold (120) and the rear mold (130) are detachably connected, a first groove (141) is provided on the rear side of the front mold (120), and a second groove (142) is provided on the front side of the rear mold (130), and the front mold (120) and the rear mold (130) are connected to form the welding cavity (160).

Images