Hot stamping equipment for car lamp

Abstract

The utility model relates to the field of car lamp dies, in particular to a hot stamping device for a car lamp, which comprises an upper die heating bottom plate, a lower die tool bottom plate, a positioning pin and a locking plate, a hot stamping block is detachably assembled on the upper die heating bottom plate, and a hot stamping die contacted with the upper surface of the car lamp is formed on the hot stamping block. A bottom block is detachably assembled on the lower die tool bottom plate, a bottom die making contact with the lower surface of the automobile lamp is formed on the bottom block, the positioning pin is vertically arranged and detachably assembled between the hot stamping die and the bottom die and penetrates through the automobile lamp, and the locking plate is detachably assembled on the upper die heating bottom plate and the lower die tool bottom plate. And the hot stamping block and the bottom block are pressed on the corresponding upper die heating bottom plate and the lower die tool bottom plate. The technical problems that in the prior art, hot stamping equipment cannot achieve precise positioning at a time, repeated debugging time is long, and batches are unstable are solved.

Description

Technical Field

[0001] The utility model relates to the field of vehicle lamp moulds, in particular to a hot stamping device for vehicle lamps. Background Art

[0002] In the automotive lighting industry, a layer of metal or pigment film is hot stamped on the decorative ring and other interior parts of the automotive lighting to achieve the purpose of decoration or marking. At present, the industry generally uses electric heating plate punching, locks the hot stamping silicone head on the electric heating plate, and uses the hole guide pillars on both sides of the bottom mold tooling for positioning, combined with a pneumatic lifter to realize the hot stamping manufacturing process. This method is mostly used for parts with simple patterns and low positioning requirements. For example, patent number CN203305648U, the equipment, when it is necessary to hot stamp the horizontal surface of the substrate, the X-axis servo system controls the workbench to move left and right to hot stamp the horizontal surface of the substrate, and the Z-axis servo system is added to control the up and down movement of the heating rubber roller, and the X-axis servo system is added to control the left and right movement of the workbench. Under the joint action of the Z-axis servo system and the X-axis servo system, one-time hot stamping of flat and non-flat products is achieved. For example, patent number CN109049960A, the device, by setting a curved working surface on the hot stamping part, the driving part drives the hot stamping part to move along a preset direction so that the curved working surface fits with the curved surface of the product to perform the hot stamping operation. This arrangement allows the curved working surface of the hot stamping part to adapt to products with curved surfaces of corresponding curvature.

[0003] It is undeniable that the manufacturing principle of pneumatic / servo hot stamping is very simple, but there have always been drawbacks in the precise positioning and debugging of the upper and lower molds. Traditional hot stamping uses electric heating plate punching, locks the hot stamping silicone head on the electric heating plate, and uses the hole guides on both sides of the bottom mold tooling to position. For parts with high requirements for hot stamping appearance and complex patterns, it is impossible to achieve precise positioning at one time, and there will be problems such as long repeated debugging time and unstable batches.

[0004] For example: (1) The method of locking the upper mold hot stamping rubber head is to lock it by punching holes on the electric heating plate and the upper mold hot stamping rubber head. The holes are evenly distributed and there is a certain distance between adjacent holes. There are certain limitations on the pattern hot stamping area and it cannot be flexibly locked. The effective utilization area of ​​the electric heating plate is relatively low; (2) The upper and lower molds are positioned by using the guide pins of the positioning holes on both sides of the bottom mold positioning tooling. Since the two guide pins are the same length, the upper and lower molds are in air-space alignment. The upper mold hot stamping rubber head cannot directly contact the part and needs to be fine-tuned during pre-pressing. Therefore, the positioning and debugging time is long; (3) The traditional hot stamping bottom mold is not fully supported by contour copying. During the hot stamping pressing process, the part will shake slightly, resulting in a jagged appearance or uneven boundaries. Summary of the invention

[0005] In order to solve the technical problems in the prior art that the hot stamping equipment cannot achieve accurate positioning in one go, has a long time for repeated debugging, and has unstable batches, the present application proposes a hot stamping equipment for car lights to solve the above technical problems.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] The utility model provides a hot stamping equipment for a vehicle lamp, comprising: an upper mold heating base plate, on which a hot stamping block is detachably mounted, and on which a hot stamping die in contact with the upper surface of a vehicle lamp part is formed; a lower mold tooling base plate, on which a bottom block is detachably mounted, and on which a bottom mold in contact with the lower surface of the vehicle lamp part is formed; a positioning pin, which is vertically arranged, detachably mounted between the hot stamping die and the bottom mold, and passes through the vehicle lamp part; a locking plate, which is detachably mounted on the upper mold heating base plate and the lower mold tooling base plate, and presses the hot stamping block and the bottom block onto the corresponding upper mold heating base plate and the lower mold tooling base plate.

[0008] Furthermore, the hot stamping die is formed in the middle of the hot stamping block and protrudes toward the vehicle lamp part; the bottom die is formed in the middle of the bottom block and protrudes toward the vehicle lamp part.

[0009] Furthermore, the upper mold heating bottom plate and the lower mold tooling bottom plate are provided with assembly holes at four corners, and the locking piece is assembled at the assembly holes by bolts.

[0010] Furthermore, the upper section of the positioning pin is inserted into the hot stamping die, the middle section of the positioning pin passes through the vehicle lamp part, and the lower section of the positioning pin is inserted into the bottom die.

[0011] Furthermore, the hot stamping die is provided with a first positioning hole for the upper section of the positioning pin to be inserted into.

[0012] Furthermore, a second positioning hole for inserting the lower section of the positioning pin is provided on the bottom mold.

[0013] Based on the above technical solution, the technical effects that can be achieved by the utility model are:

[0014] The hot stamping equipment for car lights of the utility model adopts a locking piece to lock the hot stamping block and the bottom block on the corresponding upper mold heating bottom plate and the lower mold tooling bottom plate, and is not limited to the previous method of selecting suitable fixing holes on multiple fixing holes to achieve adjustment of fixed distances and fixed angles in the horizontal direction. Flexible locking at any distance and any angle in the horizontal direction can be achieved, and for patterns with larger areas, the effective area of ​​the electric heating plate can be maximized; the hot stamping equipment for car lights of the utility model inserts positioning pins between the hot stamping mold, the car light parts, and the bottom mold, and when the upper and lower molds are aligned, the positioning pins are inserted between the car light parts. Punching a hole on the top can shorten the length of the positioning pin, and precise alignment is achieved through the positioning pin, so that the upper and lower molds are close to the car light parts; in the hot stamping equipment for car lights of the utility model, the hot stamping mold is formed on the hot stamping block, and the bottom mold is formed on it, so as to form a full support for the imprinting mold and the bottom mold, especially the bottom mold, during the hot stamping pressing process, the car light parts have no obvious shaking, and the appearance of jagged edges or uneven boundaries can be improved; in summary, the hot stamping equipment for car lights of the utility model solves the technical problems that the hot stamping equipment in the prior art cannot achieve precise positioning at one time, and there will be long repeated debugging time and unstable batches. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the hot stamping process of the hot stamping equipment for vehicle lights of the utility model;

[0016] Figure 2 A schematic diagram of the main parts of the upper mold heating base plate of the hot stamping equipment for vehicle lamps of the utility model;

[0017] Figure 3 It is a schematic diagram of the main parts of the bottom plate of the lower die tooling of the hot stamping equipment for the vehicle lamp of the utility model;

[0018] Figure 4 The utility model is a schematic diagram of the structure of the locking piece of the hot stamping equipment for the vehicle lamp.

[0019] Among them: a-headlight parts; 1-upper die heating base plate, 11-hot stamping block, 12-hot stamping die, 13-first positioning hole; 2-lower die tooling base plate, 21-bottom block, 22-bottom die, 23-second positioning hole; 3-locating pin; 4-locking plate, 41-assembly hole, 42-bolt. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0021] like Figure 1-4 As shown, the utility model provides a hot stamping equipment for a vehicle lamp, comprising an upper mold heating base plate 1, a lower mold tooling base plate 2, a positioning pin 3 and a locking piece 4. A hot stamping block 11 is detachably mounted on the upper mold heating base plate 1, and a hot stamping die 12 in contact with the upper surface of the vehicle lamp is formed on the hot stamping block 11. A bottom block 21 is detachably mounted on the lower mold tooling base plate 2, and a bottom die 22 in contact with the lower surface of the vehicle lamp is formed on the bottom block 21. The positioning pin 3 is vertically arranged and detachably mounted between the hot stamping die 12 and the bottom die 22, and passes through the vehicle lamp. The locking piece 4 is detachably mounted on the upper mold heating base plate 1 and the lower mold tooling base plate 2, and the hot stamping block 11 and the bottom block 21 are pressed onto the corresponding upper mold heating base plate 1 and the lower mold tooling base plate 2.

[0022] Specifically, the hot stamping die 12 is formed in the middle of the hot stamping block 11 and protrudes toward the headlight part a; the bottom die 22 is formed in the middle of the bottom block 21 and protrudes toward the headlight part a, thereby ensuring that the hot stamping die 12 and the bottom die 22 are fully supported, especially the bottom die 22. The bottom die 22 adopts contoured full support. During the hot stamping pressing process, the headlight part a has no obvious shaking, which can improve the appearance of jagged or uneven boundaries.

[0023] In a specific implementation of the present invention, assembly holes 41 are opened on four corners of the upper mold heating base plate 1 and the lower mold tooling base plate 2 , and the locking pieces 4 are assembled at the assembly holes 41 by bolts 42 .

[0024] In a specific implementation of the present invention, the upper section of the positioning pin 3 is inserted into the hot stamping die 12 , the middle section of the positioning pin 3 passes through the vehicle lamp part a, and the lower section of the positioning pin 3 is inserted into the bottom die 22 .

[0025] Specifically, the hot stamping die 12 is provided with a first positioning hole 13 for the upper section of the positioning pin 3 to be inserted into.

[0026] Specifically, a second positioning hole 23 for inserting the lower section of the positioning pin 3 is formed on the bottom mold 22 .

[0027] The patent of this utility model has the following purpose: the upper mold heating base plate 1 is to make the upper and lower molds more accurately positioned and locked more flexibly, so as to save debugging time and maximize the use of the effective area of ​​the heating plate; the lower mold tooling base plate 2 is to achieve contour hot stamping of samples with complex structures, and the bottom adopts full support to reduce the occurrence of jagged edges or uneven boundaries of hot stamping, so as to achieve the best hot stamping effect.

[0028] Figure 1 It is a schematic diagram of the hot stamping process. The hot stamping mold 12 and the bottom mold 22 are assisted in positioning with the positioning pins 3. When the upper and lower molds are aligned, holes are punched on the surface of the headlight part a to shorten the length of the positioning pins 3. After positioning, it is placed in the hot stamping equipment. The locking piece 4 is used to fix the hot stamping block 11 and the bottom block 21 on the upper mold heating base plate 1 and the lower mold tooling base plate 2 respectively to achieve precise positioning.

[0029] Figure 2 This is a schematic diagram of the main parts of the upper mold heating base plate 1. The main material is aluminum plate, which mainly includes a hot stamping block 11 and a hot stamping mold 12. The hot stamping mold 12 adopts a contoured structure. Two first positioning holes 13 are punched on the hot stamping mold 12 for inserting the upper section of the positioning pin 3. The outer side is wrapped with high-temperature resistant silicone leather with a hardness of 90°A.

[0030] Figure 3 It is a schematic diagram of the main parts of the bottom plate 2 of the lower mold tooling. The material is aluminum plate, which mainly includes a bottom block 21 and a bottom mold 22. The bottom mold 22 adopts a contoured structure, and two second positioning holes 23 for inserting the lower section of the positioning pin 3 are punched on the bottom mold 22 to cooperate with the positioning pin 3 to assist in positioning.

[0031] Figure 4 It is a structural schematic diagram of the locking plate 4. Holes are punched around the upper mold heating base plate 1 and the lower mold tooling base plate 2. The locking plate 4 is locked to the corresponding upper mold heating base plate 1 and the lower mold tooling base plate 2 by screws, and the gaskets of the screws can be made in various length and width specifications to meet the positioning requirements of upper and lower mold base plates of different sizes.

[0032] Traditional hot stamping equipment mainly uses internal punching of the upper die hot stamping head for positioning, and uses guide pillars and the lower die positioning tooling to assist in positioning. However, this positioning method is rough and takes a long time to debug in actual production. The lower die positioning tooling uses local support from the bottom, and the parts will shake slightly during hot stamping, resulting in a jagged appearance or uneven boundaries.

[0033] The hot stamping equipment for vehicle lights of the utility model adopts a locking piece 4 to lock the hot stamping block 11 and the bottom block 21 on the corresponding upper mold heating bottom plate 1 and the lower mold tooling bottom plate 2, without being limited to the previous method of selecting suitable fixing holes on multiple fixing holes to achieve adjustment of fixed distances and fixed angles in the horizontal direction. Flexible locking at any distance and any angle in the horizontal direction can be achieved, and for patterns with larger areas, the effective area of ​​the electric heating plate can be maximized; the hot stamping equipment for vehicle lights of the utility model inserts the positioning pins 3 between the hot stamping mold 12, the vehicle light part a, and the bottom mold 22, and when the upper and lower molds are aligned, the positioning pins 3 are inserted between the vehicle light part a Punching a hole on the top can shorten the length of the locating pin 3, and accurate alignment is achieved through the locating pin 3, so that the upper and lower molds are close to the car light part a; in the hot stamping equipment for car lights of the utility model, the hot stamping mold 12 is formed on the hot stamping block 11, and the bottom mold 22 is formed on it, so as to form a full support for the stamping mold and the bottom mold 22, especially the bottom mold 22. During the hot stamping pressing process, the car light part a has no obvious shaking, and the jagged appearance or uneven boundaries can be improved; in summary, the hot stamping equipment for car lights of the utility model solves the technical problems that the hot stamping equipment in the prior art cannot achieve accurate positioning at one time, and there will be long repeated debugging time and unstable batches.

[0034] It should be understood that the specific embodiments described above are only used to explain the present invention, and are not used to limit the present invention. Obvious changes or modifications derived from the spirit of the present invention are still within the scope of protection of the present invention.

Claims

1. A hot stamping equipment for vehicle lamps, characterized in that: include: An upper mold heating base plate (1), on which a hot stamping block (11) is detachably mounted, and on which a hot stamping die (12) in contact with the upper surface of the vehicle lamp part (a) is formed; A lower die tooling bottom plate (2), on which a bottom block (21) is detachably mounted, and on which a bottom die (22) in contact with a lower surface of a vehicle lamp component (a) is formed; A positioning pin (3), the positioning pin (3) is arranged vertically, is detachably assembled between the hot stamping die (12) and the bottom die (22), and passes through the vehicle lamp part (a); A locking plate (4), wherein the locking plate (4) is detachably mounted on the upper mold heating base plate (1) and the lower mold tooling base plate (2), and the hot stamping block (11) and the bottom block (21) are pressed onto the corresponding upper mold heating base plate (1) and the lower mold tooling base plate (2).

2. The hot stamping equipment for vehicle lamps according to claim 1, characterized in that: The hot stamping die (12) is formed in the middle of the hot stamping block (11) and protrudes toward the vehicle lamp part (a); the bottom die (22) is formed in the middle of the bottom block (21) and protrudes toward the vehicle lamp part (a).

3. The hot stamping equipment for vehicle lamps according to claim 1, characterized in that: Assembly holes (41) are provided on the four corners of the upper mold heating base plate (1) and the lower mold tooling base plate (2), and the locking plate (4) is assembled at the assembly holes (41) by means of bolts (42).

4. The hot stamping equipment for vehicle lamps according to claim 1, characterized in that: The upper section of the positioning pin (3) is inserted into the hot stamping die (12), the middle section of the positioning pin (3) passes through the vehicle lamp part (a), and the lower section of the positioning pin (3) is inserted into the bottom die (22).

5. The hot stamping equipment for vehicle lamps according to claim 4, characterized in that: The hot stamping die (12) is provided with a first positioning hole (13) for the upper section of the positioning pin (3) to be inserted.

6. The hot stamping equipment for vehicle lamps according to claim 4, characterized in that: The bottom mold (22) is provided with a second positioning hole (23) for the lower section of the positioning pin (3) to be inserted.

Images