Hot melting welding heating mold

Abstract

A hot melting welding heating die is used for protecting a non-welding part of a to-be-welded piece. The hot melting welding heating mold comprises a heating mold body and a cooling device. The heating mold body is at least provided with a first contact part and a second contact part, the first contact part is used for being in contact with a first welding part for melting a to-be-welded piece, the second contact part is used for being in contact with a second welding part for melting the to-be-welded piece, and a first interval is formed between the first contact part and the second contact part; the cooling device comprises a cooling piece, and the cooling piece is arranged in the first interval and protrudes out of the first contact portion and the second contact portion so as to cool a to-be-cooled portion, in bridge connection with the first welding portion and the second welding portion, of the to-be-welded piece.

Description

Technical Field

[0001] The utility model relates to a hot plate welding technology, in particular to a hot melt welding heating mould. Background Art

[0002] The lampshade and lamp holder of a car lamp are often connected by hot plate welding. When the heated mold contacts and melts the welding area of ​​the lampshade, the high temperature damages the non-welding area of ​​the lampshade, causing the non-welding area of ​​the lampshade to turn white or foggy, which damages the appearance of the lampshade. Utility Model Content

[0003] The utility model aims to provide a hot melt welding heating mold for protecting the non-welding part of a workpiece to be welded.

[0004] According to an embodiment of the utility model, the hot melt welding heating mold includes a heating mold body and a cooling device; the heating mold body is at least provided with a first contact portion and a second contact portion, the first contact portion is used to contact and melt the first welding portion of the workpiece to be welded, the second contact portion is used to contact and melt the second welding portion of the workpiece to be welded, and a first interval is set between the first contact portion and the second contact portion; the cooling device includes a cooling member, the cooling member is arranged in the first interval, and protrudes from the first contact portion and the second contact portion to cool the portion to be cooled that bridges the first welding portion and the second welding portion in the workpiece to be welded.

[0005] In one or more embodiments, the cooling member is spaced apart from the heating mold body.

[0006] In one or more embodiments, the cooling member is configured to have a second interval from the portion to be cooled so as to cool the portion to be cooled in a non-contact manner.

[0007] In one or more embodiments, the second interval is 0.5 to 1.5 mm.

[0008] In one or more embodiments, a first cooling channel and a second cooling channel are arranged in the cooling member, the first cooling channel and the second cooling channel have the same shape, cooling medium of the same temperature flows through the first cooling channel and the second cooling channel, the cooling medium flows in a first direction in the first cooling channel, and the cooling medium flows in a second direction in the second cooling channel, and the second direction is the opposite of the first direction.

[0009] In one or more embodiments, the cooling member includes a first half and a second half, the first half is located between the second half and the first contact portion, the second half is located between the first half and the second contact portion, the joint surface of the first half is provided with a first half groove and a second half groove, the joint surface of the second half is provided with a first half groove and a second half groove, the joint surface of the first half is joined with the joint surface of the second half, the first half groove of the first half is connected with the first half groove of the second half to form a first groove, the second half groove of the first half is connected with the second half groove of the second half to form a second groove, the first cooling channel includes a first cooling pipe, the second cooling channel includes a second cooling pipe, the first cooling pipe is arranged in the first groove, and the second cooling pipe is arranged in the second groove.

[0010] In one or more embodiments, the first half and the second half sandwich the first cooling tube and the second cooling tube.

[0011] In one or more embodiments, the hot melt welding heating mold also includes a seat, the heating mold body is fixed to the seat, the cooling element is fixed to the seat by a bracket, the bracket is positionally fixed to the seat, and the cooling element is positionally fixed to the bracket.

[0012] In one or more embodiments, the bracket includes a support and a support rod, the support is provided with a waist-shaped hole fixedly connected to the seat body, and the support is provided with a waist-shaped hole fixedly connected to the support rod.

[0013] In one or more embodiments, the cooling member is provided with a waist-shaped hole to fixedly connect the support rod.

[0014] The embodiments of the present invention have at least the following beneficial effects:

[0015] The cooling member is arranged at the first interval, between the first contact portion and the second contact portion, so as to cool the portion to be cooled between the first welding portion and the second welding portion, and the cooling member protrudes from the first contact portion and the second contact portion, so that the distance between the cooling member and the portion to be cooled is smaller than the distance between the first contact portion and the second contact portion and the portion to be cooled, so as to cool the portion to be cooled and prevent the high temperature of the first contact portion and the second contact portion from damaging the non-welding area of ​​the portion to be welded. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and other features, properties and advantages of the present invention will become more apparent through the following description in conjunction with the accompanying drawings and embodiments, in which:

[0017] Figure 1 An oblique view of a heated mold for hot melt welding contacting and melting the workpiece to be welded;

[0018] Figure 2A cross-sectional view of a heated mold for hot melt welding contacting and melting the workpiece to be welded;

[0019] Figure 3 for Figure 2 A partial enlarged view of the middle A;

[0020] Figure 4 An oblique view of the mold being heated for hot melt welding

[0021] Figure 5 for Figure 4 A partial enlarged view of

[0022] Reference numerals:

[0023] 1- Heating mold body;

[0024] 2- Cooling device;

[0025] 3-Parts to be welded;

[0026] 4- first contact portion;

[0027] 5- second contact portion;

[0028] 6- first welding part;

[0029] 7- second welding part;

[0030] 8- Cooling element;

[0031] 9-cooling section;

[0032] 10 - second interval;

[0033] 11- first cooling channel;

[0034] 12- second cooling channel;

[0035] 13-first half;

[0036] 14-second half;

[0037] 15 - first half slot;

[0038] 16 - second half slot;

[0039] 17- first slot;

[0040] 18 - second slot;

[0041] 19- first cooling pipe;

[0042] 20- second cooling pipe;

[0043] 21-Body;

[0044] 22-Stand;

[0045] 23- support;

[0046] 24- support rod;

[0047] 25- waist-shaped hole;

[0048] 26-First interval. DETAILED DESCRIPTION

[0049] Reference will now be made in detail to embodiments of the present invention, one or more examples of which are shown in the accompanying drawings. Each example is provided to explain the present invention, rather than to limit the present invention. In fact, it will be apparent to those skilled in the art that various modifications and variations may be made in the present invention without departing from the scope or spirit of the present invention. For example, a feature shown or described as part of one embodiment may be used together with another embodiment to produce yet another embodiment. Therefore, the present invention is intended to cover these modifications and variations that fall within the scope of the appended claims and their equivalents.

[0050] It should be noted that these and other subsequent drawings are only examples and are not drawn in proportion, and should not be used as a limitation on the actual scope of protection required by the present utility model.

[0051] The terms "first", "second", etc. may be used interchangeably to distinguish one feature from another, and are not intended to mean that each feature must be located as shown in the figures in each embodiment.

[0052] like Figure 2 and Figure 3 As shown, the hot melt welding heating mold includes a heating mold body 1 and a cooling device 2, which is used for hot plate welding of a workpiece 3 to be welded, and the workpiece 3 to be welded can be a plastic part. The heating mold body 1 is at least provided with a first contact portion 4 and a second contact portion 5, and a first interval 26 is provided between the first contact portion 4 and the second contact portion 5, which is used to contact and melt the first welding portion 6 and the second welding portion 7 separated in the workpiece 3 to be welded, respectively. The first contact portion 4 contacts the first welding portion 6 of the workpiece 3 to be welded to melt the material of the first welding portion 6, so that the first welding portion 6 can be connected and fixed with another workpiece to be welded, and the second contact portion 5 contacts the second welding portion 7 of the workpiece 3 to be welded to melt the second welding portion 7, so that the second welding portion 7 can be connected and fixed with another workpiece to be welded.

[0053] like Figure 2 and Figure 3As shown, during hot plate welding, the hot melt welding heating mold can be in a conventional horizontal position, the heating mold body 1 is horizontally arranged, the first contact portion 4 and the second contact portion 5 are protrusions protruding upward from the main body of the heating mold body 1, the welded part 3 can be a lampshade of a vehicle lamp, the first welding portion 6 can be a welding rib of the bottom plate of the lampshade when the lamp is installed on the vehicle, and the second welding portion 7 can be a welding rib of the top plate of the lampshade when the lamp is installed on the vehicle, further combined with Figure 1 The lampshade is buckled on the upper side of the heating mold body 1 and supported by the heating mold body 1, the opening between the bottom plate and the top plate of the lampshade faces the first contact part 4 and the second contact part 5, the first welding part 6 contacts and is supported on the upper side of the first contact part 4, and the second welding part 7 contacts and is supported on the upper side of the second contact part 5. The following orientation description is based on Figure 2 and Figure 3 The conventional posture of the hot melt welding heating mold shown is when the hot melt welding heating mold is in a posture other than the conventional posture, the orientation description should be adaptively adjusted as the posture changes.

[0054] like Figure 2 and Figure 3 As shown, the cooling device 2 is a cooling member 8, and the cooling member 8 is used to cool the portion to be cooled 9 bridging the first welding portion 6 and the second welding portion 7 in the workpiece 3 to be welded, and the portion to be cooled 9 is located between the first welding portion 6 and the second welding portion 7. The cooling member 8 is arranged in the first interval 26, and is located between the first contact portion 4 and the second contact portion 5, so that the cooling member 8 is located between the first welding portion 6 and the second welding portion 7, thereby cooling the portion to be cooled 9 between the first welding portion 6 and the second welding portion 7, and the cooling member 8 protrudes from the first contact portion 4 and the second contact portion 5, so that the distance between the cooling member 8 and the portion to be cooled 9 is smaller than the distance between the first contact portion 4 and the second contact portion 5 and the portion to be cooled 9, thereby cooling the portion to be cooled 9 and avoiding the high temperature of the first contact portion 4 and the second contact portion 5 from damaging the non-welding area of ​​the workpiece 3 to be welded.

[0055] like Figure 2 and Figure 3As shown, the portion to be cooled 9 can be the light-transmitting side wall of the lampshade when the vehicle lamp is installed on the vehicle, connecting the bottom plate and the top plate of the lampshade, and located between the bottom plate and the top plate of the lampshade. In the aforementioned conventional usage posture, the first interval 26 between the first welding portion 6 and the second welding portion 7 is a lateral interval, and the cooling member 8 is located between the first contact portion 4 and the second contact portion 5 in the lateral direction, so that the cooling member 8 is located between the bottom plate and the top plate of the lampshade in the lateral direction, thereby cooling the light-transmitting side wall of the lampshade between the bottom plate and the top plate of the lampshade in the lateral direction, and the cooling member 8 protrudes to the upper side of the first contact portion 4 and the second contact portion 5, so that the cooling member 8 is closer to the light-transmitting side wall of the lampshade than the first contact portion 4 and the second contact portion 5, thereby cooling the light-transmitting side wall of the lampshade, avoiding the high temperature of the first contact portion 4 and the second contact portion 5 from damaging the light-transmitting side wall of the lampshade, causing the light-transmitting side wall of the lampshade to appear white, foggy and other problems, which damages the appearance of the lampshade.

[0056] The first contact portion 4 and the second contact portion 5 may be independent components that are not connected to each other. Figure 3 As shown, the first contact portion 4 and the second contact portion 5 may also be connected at both ends perpendicular to the paper surface, so that the first contact portion 4 and the second contact portion 5 are connected into an integral component, and the first interval 26 is enclosed by the first contact portion 4 and the second contact portion 5 .

[0057] like Figure 3 As shown, a gap can be set between the cooling member 8 and the heating mold body 1 to avoid heat conduction between the heating mold body 1 and the cooling member 8, thereby reducing the mutual temperature influence between the heating mold body 1 and the cooling member 8. In the conventional use posture described above, the cooling member 8 has a lateral gap with the first contact portion 4, a lateral gap with the second contact portion 5, and a vertical gap with the lower heating mold body 1.

[0058] like Figure 3 As shown, a second interval 10 can be provided between the cooling member 8 and the portion to be cooled 9, and the cooling member 8 cools the portion to be cooled 9 without contact, so as to prevent the cooling member 8 from contacting the portion to be cooled 9 and damaging the portion to be cooled 9. When the portion to be cooled 9 is the light-transmitting side wall of the lampshade of the vehicle lamp, the second interval 10 prevents the cooling member 8 from scratching or bumping the light-transmitting side wall of the lampshade, thereby damaging the appearance of the lampshade. In the conventional use posture mentioned above, the second interval 10 is the vertical interval between the cooling member 8 and the portion to be cooled 9.

[0059] like Figure 3 As shown, the second interval 10 may be in the range of 0.5 to 1.5 mm to prevent the cooling element 8 from being too far away from the portion to be cooled 9 and causing insufficient cooling effect. Further, the second interval 10 may be 1 mm.

[0060] like Figures 3 to 5As shown, the cooling member 8 may be provided with a first cooling channel 11 and a second cooling channel 12 inside, and cooling medium is passed through the first cooling channel 11 and the second cooling channel 12, so that the cooling member 8 has a lower temperature and cooling capacity. The cooling member 8 may be made of aluminum. The first cooling channel 11 and the second cooling channel 12 have the same shape, so that the cooling medium in the first cooling channel 11 and the second cooling channel 12 has the same or similar flow process, and the cooling medium of the same temperature is introduced into the first cooling channel 11 and the second cooling channel 12, so that the temperature of the high temperature end of the first cooling channel 11 is the same as or close to the temperature of the high temperature end of the second cooling channel 12, and the temperature of the low temperature end of the first cooling channel 11 is the same as or close to the temperature of the low temperature end of the second cooling channel 12, and the cooling medium in the first cooling channel 11 flows in a first direction, and the cooling medium in the second cooling channel 12 flows in a second direction, and the second direction is the opposite of the first direction, so that the high temperature end of the first cooling channel 11 and the low temperature end of the second cooling channel 12 are located at the same end, and the low temperature end of the first cooling channel 11 and the high temperature end of the second cooling channel 12 are located at the same end, thereby making the temperatures of the two ends of the cooling member 8 the same or close, avoiding a large temperature difference at the two ends of the cooling member 8, which leads to uneven cooling of the part 9 to be cooled or insufficient cooling of a part of the part 9 to be cooled. The first cooling channel 11 and the second cooling channel 12 may have the same circular cross-section and extend along paths parallel to each other, thereby having the same shape and the same or similar size.

[0061] like Figures 3 to 5 As shown, the cooling member 8 may also be provided with a first half 13 and a second half 14, the joint surface of the first half 13 joints with the joint surface of the second half 14 to form the cooling member 8, the first half 13 and the second half 14 may be fixed by bolts, the first half 13 is located between the second half 14 and the first contact portion 4, the second half 14 is located between the first half 13 and the second contact portion 5, the joint surface of the first half 13 faces the second contact portion 5, and the joint surface of the second half 14 faces the first contact portion 4. In the aforementioned conventional usage posture, the first half 13 may be half of the cooling member 8 in the lateral direction, and the second half 14 may be the other half of the cooling member 8 in the lateral direction, and the joint surfaces of the first half 13 and the second half 14 are perpendicular to the lateral direction. As shown in FIG. Figure 3As shown, the joint surfaces of the first half 13 and the second half 14 may be provided with a first half groove 15 and a second half groove 16. After the first half 13 and the second half 14 are joined, the first half groove 15 of the first half 13 and the first half groove 15 of the second half 14 are joined to form a first groove 17, and the second half groove 16 of the first half 13 and the second half groove 16 of the second half 14 are joined to form a second groove 18. In the aforementioned conventional usage posture, the first half groove 15 may be half of the first groove 17 in the horizontal direction, and the second half groove 16 may be half of the second groove 18 in the horizontal direction. The first half groove 15 and the second half groove 16 may have a semicircular cross-section, so that the first groove 17 and the second groove 18 formed by the joint have a circular cross-section, and the first groove 17 may be located on the vertical side of the second groove 18. As shown Figure 4 and Figure 5 As shown, a first cooling pipe 19 can be arranged in the first groove 17, and a second cooling pipe 20 can be arranged in the second groove 18. Cooling medium is passed through the first cooling pipe 19 and the second cooling pipe 20, so that the cooling element 8 has a lower temperature and has cooling capacity. The first half 13 and the second half 14 are convenient to be joined and assembled, and the first half groove 15 and the second half groove 16 are convenient to be processed on the joint surface of the first half 13 and the joint surface of the second half 14, so that the first cooling pipe 19 and the second cooling pipe 20 are convenient to be assembled in the first groove 17 and the second groove 18, and the first cooling pipe 19 and the second cooling pipe 20 have no joints and are not easy to leak.

[0062] like Figures 3 to 5 As shown, the first half 13 and the second half 14 can clamp the first cooling tube 19 and the second cooling tube 20, so as to fix the first cooling tube 19 and the second cooling tube 20, with a simple structure and convenient assembly, and the wall surface of the first groove 17 is close to the first cooling tube 19, and the wall surface of the second groove 18 is close to the second cooling tube 20, so that the cooling medium can reduce the temperature of the cooling member 8 through heat conduction, and the cooling effect on the cooling member 8 is good. The first cooling tube 19 and the second cooling tube 20 can have a circular cross section, so as to be clamped by the first groove 17 and the second groove 18 with a circular cross section and close to the wall surface of the first groove 17 and the second groove 18.

[0063] like Figure 1 as well as Figures 3 to 5 As shown, the cooling member 8 can be extended into an arc shape to match the first interval 26 between the first contact portion 4 and the second contact portion 5 and the portion to be cooled 9 of the welded part 3. In the aforementioned conventional usage posture, the arc-shaped top wall of the cooling member 8 maintains a uniform second interval 10 with the portion to be cooled 9, and the first cooling channel 11 and the second cooling channel 12 extend along the same arc in the cooling member 8, thereby maintaining a uniform distance from the arc-shaped top wall of the cooling member 8, thereby enabling the cooling member 8 to have the same cooling capacity at each position in the extension direction.

[0064] like Figure 1 and Figure 4 As shown, the hot melt welding heating mold can also be provided with a seat body 21, which can be a seat plate. In the conventional use posture mentioned above, the seat plate is horizontal. The heating mold body 1 is fixed to the seat body 21. The heating mold body 1 can be as shown in FIG. Figure 1 The cooling member 8 is fixed to the base 21 by bolts as shown. The cooling member 8 is fixed to the base 21 by a bracket 22, and the bracket 22 is fixed to the base 21 in an adjustable manner. The cooling member 8 is fixed to the bracket 22 in an adjustable manner, so that the fixing position of the cooling member 8 can be adjusted so that the cooling member 8 has the aforementioned interval with the heating mold body 1 and the welded member 3.

[0065] like Figure 4 As shown, the bracket 22 may be provided with a support 23 and a support rod 24. The support 23 is provided with a waist-shaped hole 25 to be fixedly connected to the seat body 21. The support 23 is thus fixed to the seat body 21 in an adjustable manner. The support 23 is provided with a waist-shaped hole 25 to be fixedly connected to the support rod 24. The support rod 24 is thus fixed to the support 23 in an adjustable manner. The cooling member 8 supported by the support rod 24 is thus adjustable in position. In the aforementioned conventional usage posture, the base plate of the support 23 is horizontal and supported by the seat body 21. The base plate of the support 23 may be provided with a waist-shaped hole 25 and fixed to the seat body 21 by bolts. The long axis of the waist-shaped hole 25 on the base plate of the support 23 may extend laterally. The vertical plate of the support 23 extends vertically. The support rod 24 may extend laterally. The vertical plate of the support 23 may be provided with a waist-shaped hole 25 and fixed to the support rod 24 by bolts. The long axis of the waist-shaped hole 25 on the vertical plate of the support 23 may extend vertically. Further combined Figure 1 and Figure 2 The support rod 24 can extend into the heating mold body 1 to connect to the cooling member 8 located in the first interval 26.

[0066] like Figure 4 and Figure 5 As shown, the cooling member 8 can be provided with a waist-shaped hole 25 to fix the connecting rod 24, so that the cooling member 8 can be fixed to the supporting rod 24 in an adjustable position. The supporting rod 24 can be extended into the waist-shaped hole 25 of the cooling member 8 and fixed by bolts. In the aforementioned conventional usage posture, the long axis of the waist-shaped hole 25 of the cooling member 8 can extend vertically.

[0067] Although the present invention is disclosed as above by the embodiments, it is not intended to limit the present invention. Any person skilled in the art may make possible changes and modifications without departing from the spirit and scope of the present invention.

Claims

1. A hot melt welding heating mold, characterized in that include: A heating mold body (1) is provided with at least a first contact portion (4) and a second contact portion (5), wherein the first contact portion (4) is used to contact and melt a first welding portion (6) of a workpiece (3) to be welded, and the second contact portion (5) is used to contact and melt a second welding portion (7) of the workpiece (3) to be welded, and a first gap (26) is provided between the first contact portion (4) and the second contact portion (5); as well as The cooling device (2) comprises a cooling member (8), wherein the cooling member (8) is arranged in the first interval (26) and protrudes from the first contact portion (4) and the second contact portion (5) to cool a portion to be cooled (9) in the welded part (3) that bridges the first welding portion (6) and the second welding portion (7).

2. The hot melt welding heating mold according to claim 1, characterized in that: The cooling element (8) is spaced apart from the heating mold body (1).

3. The hot melt welding heating mold according to claim 1, characterized in that: The cooling member (8) is configured to have a second interval (10) with the portion to be cooled (9) so as to cool the portion to be cooled (9) in a non-contact manner.

4. The hot melt welding heating mold according to claim 3, characterized in that: The second interval (10) is 0.5-1.5 mm.

5. The hot melt welding heating mold according to claim 1, characterized in that: A first cooling channel (11) and a second cooling channel (12) are arranged in the cooling element (8); the first cooling channel (11) and the second cooling channel (12) have the same shape; a cooling medium of the same temperature flows into the first cooling channel (11) and the second cooling channel (12); the cooling medium flows in a first direction in the first cooling channel (11); and the cooling medium flows in a second direction in the second cooling channel (12); the second direction is opposite to the first direction.

6. The hot melt welding heating mold according to claim 5, characterized in that: The cooling member (8) comprises a first half portion (13) and a second half portion (14), wherein the first half portion (13) is located between the second half portion (14) and the first contact portion (4), and the second half portion (14) is located between the first half portion (13) and the second contact portion (5), a first half groove (15) and a second half groove (16) are arranged on a joint surface of the first half portion (13), and a first half groove (15) and a second half groove (16) are arranged on a joint surface of the second half portion (14), and the joint surface of the first half portion (13) is joined to the joint surface of the second half portion (14). The first half groove (15) of the first half part (13) and the first half groove (15) of the second half part (14) are connected to form a first groove (17), the second half groove (16) of the first half part (13) and the second half groove (16) of the second half part (14) are connected to form a second groove (18), the first cooling channel (11) includes a first cooling pipe (19), the second cooling channel (12) includes a second cooling pipe (20), the first cooling pipe (19) is arranged in the first groove (17), and the second cooling pipe (20) is arranged in the second groove (18).

7. The hot melt welding heating mold according to claim 6, characterized in that: The first half (13) and the second half (14) clamp the first cooling tube (19) and the second cooling tube (20).

8. The hot melt welding heating mold according to claim 2 or 4, characterized in that: The hot melt welding heating mold also includes a base (21), the heating mold body (1) is fixed to the base (21), the cooling element (8) is fixed to the base (21) by a bracket (22), the bracket (22) is fixed to the base (21) in an adjustable position, and the cooling element (8) is fixed to the bracket (22) in an adjustable position.

9. The hot melt welding heating mold according to claim 8, characterized in that: The support (22) comprises a support seat (23) and a support rod (24); the support seat (23) is provided with a waist-shaped hole (25) for fixedly connecting to the seat body (21); and the support seat (23) is provided with a waist-shaped hole (25) for fixedly connecting to the support rod (24).

10. The hot melt welding heating mold according to claim 9, characterized in that: The cooling element (8) is provided with a waist-shaped hole (25) for fixedly connecting the support rod (24).

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