A hot stamping device for automotive ornament trim

Abstract

The present invention relates to the technical field of hot stamping devices. Specifically, it relates to a hot stamping device for automotive ornament strips, which includes a workbench. An installation frame is arranged on the workbench. A chute is provided on the installation frame, and a guiding groove is provided in the chute. A separating component for blowing off the hot stamping paper on the ornament strip is slidably arranged in the guiding groove. A hydraulic telescopic device for driving the separating component to slide along the chute is arranged on the workbench. An air pump device for blowing air to the separating component is also arranged on the workbench. A reciprocating component for driving the separating component to rotate reciprocally is further arranged on the installation frame. The separating component includes a fixed pipe, and a blowing pipe is rotatably connected to the outside of the fixed pipe. The blowing pipe realizes the reciprocating blowing of the air outlet obliquely downward and obliquely upward through the reciprocating component, so as to enhance the effect of the wind force on the adhesion position of the hot stamping paper and the ornament strip, promote the fluctuation of the hot stamping paper, and accelerate its detachment speed.

Description

Technical Field

[0001] The present invention relates to the technical field of hot stamping devices, and specifically, to a hot stamping device for automotive ornament strips. Background Art

[0002] Automotive ornament strips are body protection strips or interior strips used on automobiles, which enhance the aesthetic feeling of the vehicle body side, fit well with the body arc, and are durable and non-deformable. At the same time, they provide effective protection for the vehicle body paint that is easily bumped when the door is opened and closed. The basic principle of hot stamping automotive ornament strips is that through the action of a hot stamping head (heating plate), the temperature when the upper mold (silicone mold), the hot stamping film, and the hot stamping part come into contact reaches an appropriate range (usually 190 - 200 degrees Celsius), and at the same time, sufficient pressure is applied to make the hot stamping mold and the hot stamping part fully contact. In this way, the adhesive layer, metal layer (aluminum or chromium), and protective layer of the hot stamping film will remain on the hot stamping feature surface of the hot stamping part, completing the hot stamping process.

[0003] After retrieval, a hot stamping device for automotive decorative strips disclosed in CN118832956A includes a workbench, an outer shell assembly is arranged at the upper end of the workbench, a hot stamping assembly is arranged on the inner surface of the outer shell assembly, a film collecting assembly is arranged at the lower end of the hot stamping assembly, and a cleaning assembly is arranged on the left side of the film collecting assembly; through the movement process of structures such as the outer shell assembly, the hot stamping assembly, the film collecting assembly, the cleaning assembly, and the air blowing assembly during processing, the above invention can not only perform hot stamping on automotive decorative strips, but also timely collect the waste film after hot stamping, and can also clean and blow air on the automotive decorative strips before hot stamping.

[0004] When performing hot stamping on ornament strips, after the upper pressure plate rises, it is necessary to lift the hot stamping paper by a scraping rod or manually, so that the hot stamping paper is separated from the ornament strip. At this time, the hot stamping strip after heating and being pressed by the upper pressure plate still has a large adhesion to the ornament strip. The traditional method using a scraping rod cannot adapt to the arc of the ornament strip, which easily causes a certain adhesion between the ornament strip and the hot stamping paper. At the same time, during the process of separating the hot stamping paper from the ornament strip, since the hot stamping paper and the ornament strip are not cooled and solidified, the hot stamping mark at the hot stamping place is easily lifted during the separation process, resulting in hot stamping failure. Even if air cooling or natural cooling is used, the cooling and separation processes are carried out separately.

[0005] Based on this, the present invention discloses a hot stamping device for automotive ornament strips. Summary of the Invention

[0006] To solve the problems raised in the background art, the object of the present invention is to provide a hot stamping device for automotive ornament strips. Through the cooperation of the separation component and the air pump device, when the hot stamping is completed, the air pump device supplies gas to the air blowing pipe in the separation component, and the wind force acts on the adhesion between the hot stamping paper and the ornament strip through the air blowing port. Secondly, with the sliding connection between the slider and the guide groove, the slider can slide in the guide groove, driving the separation component to move along the ornament strip, so that the air blowing port can cover the hot stamping area in the entire length direction of the ornament strip. Then, combined with the reciprocating component driving the air blowing pipe to achieve the reciprocating rotation of the air blowing port, the first driven gear and the second driven gear are respectively engaged with the reciprocating gear. As the slider advances, it can drive the air blowing pipe to rotate reciprocally, changing the direction of the air blowing port from obliquely upward to obliquely downward. Finally, a baffle is arranged at the opening end of the air blowing port, and the baffle can rotate inside the air blowing port to further adjust the angular change of the wind force, so as to enhance the effect of the wind force on the adhesion position between the hot stamping paper and the ornament strip, promote the fluctuation of the hot stamping paper, and accelerate its separation speed.

[0007] To achieve the above object, the present invention provides a hot stamping device for automotive ornament strips, which includes a workbench. A bracket is arranged on the workbench, and an upper pressing plate is arranged on the bracket. Hot stamping devices are arranged on both sides of the upper pressing plate on the bracket. A roll of hot stamping paper is wound on the hot stamping device. A lower pressing plate adapted to the upper pressing plate is arranged directly below the upper pressing plate on the workbench. The hot stamping paper passes above the lower pressing plate, and the lower pressing plate is used to place the ornament strip to be hot stamped.

[0008] Preferably, an installation frame is arranged on the workbench. A chute is opened on the installation frame, and a guide groove is opened in the chute. A separation component for blowing off the hot stamping paper on the ornament strip is slidably arranged in the guide groove. A hydraulic telescopic device for driving the separation component to slide along the chute is arranged on the workbench. An air pump device for blowing air to the separation component is also arranged on the workbench. A reciprocating component for driving the separation component to rotate reciprocally is also arranged on the installation frame.

[0009] Among them, the separation component includes a fixed pipe. An air blowing pipe is rotatably connected to the outside of the fixed pipe. A flat air blowing port is arranged on the air blowing pipe. The opening of the air blowing port faces the lower pressing plate. An air outlet adapted to the air blowing port is opened on one side of the fixed pipe close to the lower pressing plate. The air blowing port is communicated with the fixed pipe through the air outlet. The fixed pipe is communicated with the air pump device. The air blowing pipe is connected to the reciprocating component, and the air blowing pipe realizes the reciprocating blowing of the air blowing port obliquely downward and obliquely upward through the reciprocating component.

[0010] As a further improvement of the technical solution, upper fixing plates and lower fixing plates are symmetrically and fixedly arranged at the upper and lower ends of the sliding groove on one side of the mounting frame away from the lower pressing plate, and a support plate is fixedly arranged on the other side of the mounting frame.

[0011] As a further improvement of the technical solution, the separation assembly further includes a slider. A plurality of ball bearings are rotatably connected to the upper and lower ends of the slider. The slider is slidably connected in the guide groove through the ball bearings. A fixing rod is fixedly connected to the slider. One end of the fixing rod away from the slider is fixedly connected to one end of the fixing pipe. The other end of the fixing pipe is communicated with the air pump device; a support ring is rotatably connected to one end of the blowing pipe adjacent to the guide groove. The support ring is attached to the support plate, and the support ring is fixedly connected to the telescopic end of the hydraulic telescopic device.

[0012] As a further improvement of the technical solution, the length of the air outlet is adapted to the width of the lower pressing plate. A baffle is rotatably connected to the opening end of the air outlet. The width of the baffle is adapted to the width of the air outlet. The baffle is used for accelerating and changing the angle of the air blown out from the air outlet.

[0013] Preferably, the size of the air outlet is adapted to the rotatable angle of the air outlet, and the air outlet will not rotate to a vertically downward or vertically upward angle.

[0014] As a further improvement of the technical solution, the rotating connection between the blowing pipe and the fixing pipe is sealed.

[0015] Preferably, the reciprocating assembly includes a first rack which is fixedly connected to the lower fixing plate, and a first driving gear is engaged with the first rack;

[0016] It further includes a second rack which is fixedly connected to the bottom end of the upper fixing plate, and the teeth of the first rack face upward while the teeth of the second rack face downward. A second driving gear is engaged with the second rack. A first connecting rod is fixedly connected to the second driving gear. One end of the first connecting rod away from the second driving gear is fixedly connected to a first driven gear. The first driven gear is engaged with one side of a reciprocating gear. The reciprocating gear is fixedly connected to the blowing pipe. The other side of the reciprocating gear is engaged with a second driven gear. The second driven gear is fixedly connected to one end of a second connecting rod. The other end of the second connecting rod is fixedly connected to the first driving gear;

[0017] The second connecting rod and the first connecting rod are respectively rotatably connected to both sides of the slider.

[0018] As a further improvement of the technical solution, the toothed portions of the outer peripheral parts of the first driven gear and the second driven gear are smooth, and the toothed portions of the first driven gear and the second driven gear drive the reciprocating gear to rotate by an angle less than 180 degrees.

[0019] Preferably, in the initial state, the opening of the air blowing port is in an obliquely upward direction state.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] 1. In the hot stamping device for automotive ornament trim strips, through the cooperation of the air blowing pipe and the reciprocating assembly, the air blowing pipe is provided with a flat air blowing port, and the reciprocating assembly (including the first rack, the first driving gear, the second rack, the second driving gear, the first connecting rod, the first driven gear, the reciprocating gear, the second driven gear and the second connecting rod) is used to realize the reciprocating oblique downward and oblique upward blowing of the air blowing port, so that the air blowing port can blow towards the adhesion part of the hot stamping paper and the trim strip at multiple angles, accelerating the cooling and solidification of the hot stamping, and at the same time increasing the fluctuation of the hot stamping paper, which helps the smooth separation of the hot stamping paper and the trim strip; Secondly, by setting the baffle plate, the opening end of the air blowing port is rotatably connected with the baffle plate, and the baffle plate is used to accelerate the angle transformation of the air blown out from the air blowing port. The presence of the baffle plate accelerates the angle transformation of the air blown out from the air blowing port, so that the wind force can act more flexibly on the adhesion part of the hot stamping paper and the trim strip and the hot stamping paper, improving the efficiency and quality of the separation of the hot stamping paper and the trim strip.

[0022] 2. In the hot stamping device for automotive ornament trim strips, through the communication design of the fixed pipe, the air blowing pipe and the air outlet, the air pump device inputs the gas into the fixed pipe, and then sends the wind into the air blowing port through the air outlet, ensuring the continuous and stable supply of the wind force, providing sufficient wind force support for the air blowing port, and helping to realize the smooth separation of the hot stamping paper and the trim strip; Secondly, through the meshing design of the gears in the reciprocating assembly, the first driven gear and the second driven gear are respectively meshed with the reciprocating gear, and the rotation of the gear is driven by the sliding of the slider to realize the reciprocating movement of the air blowing pipe, so that the wind direction of the air blowing port can be continuously changed, more adapting to the hot stamping paper separation requirements of trim strips with different arcs, and improving the applicability and flexibility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is the overall structural schematic diagram of the present invention;

[0024] Figure 2 is the structural schematic diagram of the lower pressing plate of the present invention;

[0025] Figure 3 is the first structural schematic diagram of the mounting frame of the present invention;

[0026] Figure 4The second structural schematic diagram of the mounting bracket of the present invention;

[0027] Figure 5 The structural sectional view of the mounting bracket of the present invention;

[0028] Figure 6 The partial structural schematic diagram of the first driven gear of the present invention;

[0029] Figure 7 The structural schematic diagram of the reciprocating assembly of the present invention;

[0030] Figure 8 The structural explosion diagram of the blowing pipe of the present invention;

[0031] Figure 9 The front view of the structural diagram of the blowing pipe of the present invention;

[0032] Figure 10 The first working state schematic diagram of the blowing pipe of the present invention;

[0033] Figure 11 The second working state schematic diagram of the blowing pipe of the present invention.

[0034] The meanings of each label in the figure are as follows:

[0035] 1, workbench; 2, bracket; 3, upper pressing plate; 4, lower pressing plate; 5, hot stamping device; 6, mounting bracket; 7, reciprocating assembly; 8, separating assembly; 9, hydraulic telescopic device; 10, air pump device;

[0036] 61, chute; 62, guiding groove; 63, lower fixing plate; 64, upper fixing plate; 65, support plate;

[0037] 71, first rack; 72, first driving gear; 73, second rack; 74, second driving gear; 75, first connecting rod; 76, first driven gear; 77, reciprocating gear; 78, second connecting rod; 79, second driven gear;

[0038] 81, fixed pipe; 82, blowing pipe; 83, support ring; 84, blowing port; 85, baffle; 86, air outlet; 87, fixed rod; 88, slider; 89, ball. Detailed implementation manners

[0039] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0040] After the existing hot stamping equipment gilds the decorative strip, it is necessary to separate the gilding paper from the decorative strip by means of a scraping rod or manually. In this process, it is affected by the arc of the decorative strip, and since the gilding paper is not cured, it is easy to cause adhesion between the gilding paper and the decorative strip, resulting in failure of separation and affecting the product quality.

[0041] For this reason, the present invention provides a hot stamping device for automotive decorative strips, as shown in Figure 1 Figure 5. It includes a workbench 1, a bracket 2 is arranged on the workbench 1, an upper pressing plate 3 is arranged on the bracket 2, hot stamping devices 5 are arranged on both sides of the upper pressing plate 3 on the bracket 2, a gilding paper is wound on the hot stamping device 5, and a lower pressing plate 4 adapted to the upper pressing plate 3 is arranged directly below the upper pressing plate 3 on the workbench 1. The gilding paper passes above the lower pressing plate 4, and the lower pressing plate 4 is used to place the decorative strip to be hot stamped.

[0042] Specifically, as shown in Figures 1 - 5 Figure 10. An installation frame 6 is arranged on the workbench 1. A chute 61 is opened on the installation frame 6, a guide groove 62 is opened in the chute 61, and a separation component 8 for blowing off the gilding paper on the decorative strip is slidably arranged in the guide groove 62. A hydraulic telescopic device 9 for driving the separation component 8 to slide along the chute 61 is arranged on the workbench 1. An air pump device 10 for blowing air to the separation component 8 is also arranged on the workbench 1. A reciprocating component 7 for driving the separation component 8 to rotate reciprocally is also arranged on the installation frame 6;

[0043] Among them, as shown in Figures 7 - 9 Figure 14. The separation component 8 includes a fixed pipe 81. A blowing pipe 82 is rotatably connected to the outside of the fixed pipe 81. A flat blowing port 84 is arranged on the blowing pipe 82. The flat blowing port 84 can increase the wind force and make the wind force act more concentratedly on the adhesion part between the gilding paper and the decorative strip. Moreover, since the lower pressing plate 4 has a certain width, this flat blowing port 84 can directly and evenly act on the adhesion part between the entire lower pressing plate 4 and the gilding paper. If it is a structure with multiple holes or multiple blowing ports 84, compared with the structure of the flat blowing port 84 adopted in the present invention and with a width adapted to the width of the lower pressing plate 84, it is impossible to achieve uniform wind force acting on the adhesion part; the blowing port 84 opens towards the lower pressing plate 4. An air outlet 86 adapted to the blowing port 84 is opened on one side of the fixed pipe 81 close to the lower pressing plate 4. The blowing port 84 is communicated with the fixed pipe 81 through the air outlet 86. The fixed pipe 81 is communicated with the air pump device 10. The blowing pipe 82 is connected to the reciprocating component 7, and the blowing port 84 of the blowing pipe 82 reciprocates obliquely downward and obliquely upward through the reciprocating component 7.

[0044] Among them, upper fixing plates 64 and lower fixing plates 63 are symmetrically fixed at the upper and lower ends of the chute 61 on one side of the installation frame 6 away from the lower pressing plate 4, and a support plate 65 is fixed on the other side of the installation frame 6.

[0045] Further, referring to Figure 5 and Figures 7 - 9 As shown, the separation component 8 further includes a slider 88. A number of ball bearings 89 are rotatably connected to the upper and lower ends of the slider 88. The slider 88 is slidably connected in the guide groove 62 through the ball bearings 89. A fixed rod 87 is fixedly connected to the slider 88. One end of the fixed rod 87 away from the slider 88 is fixedly connected to one end of a fixed tube 81. The other end of the fixed tube 81 is communicated with the air pump device 10; A support ring 83 is rotatably connected to one end of the air blowing pipe 82 adjacent to the guide groove 62. The support ring 83 is in contact with the support plate 65. The support ring 83 is fixedly connected to the telescopic end of the hydraulic telescopic device 9. In this way, the telescopic movement of the hydraulic telescopic device 9 can push the support ring 83, and then make the entire separation component 8 move forward;

[0046] It is worth mentioning that the length of the air blowing port 84 is adapted to the width of the lower pressing plate 4. A baffle 85 is rotatably connected to the open end of the air blowing port 84. The width of the baffle 85 is adapted to the width of the air blowing port 84, and the length of the baffle 85 is also adapted to the length of the air blowing port 84. The baffle 85 is used for accelerating the angle change of the air blown out from the air blowing port 84; In this way, when the air is blown out from the air blowing port 84, the air acts on the baffle 85, which will cause the baffle 85 to rotate in the air blowing port 84, from Figure 9 It can also be seen that the angle change of the air blown out from the air blowing port 84 is accelerated; Moreover, the size of the air outlet 86 is adapted to the rotatable angle of the air blowing port 84. In the initial state, the opening of the air blowing port 84 is in the obliquely upward direction state, and the air blowing port 84 will not rotate to the vertically downward or vertically upward angles. In this way, it can ensure that the air blown out from the air blowing port 84 acts efficiently on the adhesion part of the bronzing paper and the decorative strip and on the bronzing paper. If it is vertically upward, it will cause excessive wind force on the bronzing paper, resulting in damage to the bronzing paper. If it is vertically downward, the wind force will not act on the adhesion part of the decorative strip and the bronzing paper; And, the rotating connection part of the air blowing pipe 82 and the fixed tube 81 is sealed, so that the rotation of the air blowing pipe 82 will not cause air leakage.

[0047] Furthermore, referring to Figures 3 - 5As shown in the figure, the reciprocating assembly 7 includes a first rack 71, which is fixedly connected to the lower fixing plate 63. A first driving gear 72 is engaged with the first rack 71. The reciprocating assembly 7 further includes a second rack 73, which is fixedly connected to the bottom end of the upper fixing plate 64. The teeth of the first rack 71 face upward, and the teeth of the second rack 73 face downward. A second driving gear 74 is engaged with the second rack 73. A first connecting rod 75 is fixedly connected to the second driving gear 74. One end of the first connecting rod 75 away from the second driving gear 74 is fixedly connected to a first driven gear 76. The first driven gear 76 is engaged with one side of a reciprocating gear 77. The reciprocating gear 77 is fixedly connected to the air blowing pipe 82. The other side of the reciprocating gear 77 is engaged with a second driven gear 79. The second driven gear 79 is fixedly connected to one end of a second connecting rod 78. The other end of the second connecting rod 78 is fixedly connected to the first driving gear 72. Additionally, it should be noted that the second connecting rod 78 and the first connecting rod 75 are respectively rotatably connected to both sides of the slider 88. Combining the above scenario where the slider 88 slides in the guiding groove 62, the forward movement of the slider 88 can drive the second connecting rod 78 and the first connecting rod 75 on both sides to move forward synchronously. Since the first driving gear 72 is engaged with the first rack 71 with teeth facing upward, and the second driving gear 74 is engaged with the second rack 73 with teeth facing downward, the reverse rotation of the first driven gear 76 and the second driven gear 79 can be achieved. This design can realize the reciprocating movement of the air blowing pipe 82 through the forward movement of the slider 88, that is, refer to Figure 6 As shown in the figure, the forward movement of the slider 88 can drive the first driven gear 76 and the second driven gear 79 to be respectively engaged with the reciprocating gear 77 in a timely manner, so as to realize the rotation of the air blowing port 84 from the obliquely upward opening state to the obliquely downward rotation state, and then return to the initial state and repeat this process. This mechanical reciprocating structure is more stable than a motor and does not require frequent adjustment;

[0048] Moreover, it should also be noted that during this reciprocating process, there is a certain gap (that is, the reciprocating gear 77 is not engaged with both driven gears) during the stage from when the first driven gear 76 disengages from the reciprocating gear 77 to when the second driven gear 79 engages with the reciprocating gear 77. This gap is exactly the time to increase the acting force. If the air blowing port 84 is blowing obliquely upward at this time, the acting time staying on the hot stamping paper can be increased during this stage. Then, in cooperation with the baffle 85, the wind force acting area on the hot stamping paper can be expanded, providing assistance before the disengagement for the wind force to act on the adhesion area between the decorative strip and the hot stamping paper when the air blowing port 84 is obliquely downward, so that there is a pre-disengagement stage between the hot stamping paper and the decorative strip as a buffer, making the subsequent disengagement easier and safer. If the air blowing port 84 is obliquely downward at this time, due to the paving of the previous pre-disengagement stage, the acting time can be increased during this stage to improve the disengagement efficiency and speed.

[0049] In addition, it should be supplemented that, refer toFigure 6 As shown, the toothed portions of the peripheral parts of the first driven gear 76 and the second driven gear 79 are smooth. The number of toothed parts of the first driven gear 76 and the second driven gear 79 is the same, and the angle by which the first driven gear 76 and the second driven gear 79 drive the reciprocating gear 77 to rotate is less than 180 degrees. This can ensure that the wind direction of the air outlet 84 will not rotate to be vertically upward or vertically downward. The main purpose of the present invention is to keep the wind direction of the air outlet 84 within the range of obliquely upward and obliquely downward for rotational transformation, which is more conducive to the wind force acting on the adhesion area between the hot stamping paper and the decorative strip and on the hot stamping paper. Acting on the adhesion area can accelerate the cooling and solidification of the hot stamping to facilitate the detachment of the hot stamping paper, and acting on the hot stamping paper can accelerate the fluctuation of the hot stamping paper (see Figure 11 as can be seen), assisting in the detachment of the hot stamping paper from the decorative strip. Moreover, such a setting can also enhance the applicability of the air outlet 84. In addition to helping the detachment of the hot stamping paper of the decorative strip with the structural style of the lower pressing plate 4 in the attached drawing, as Figures 10 - 11 shown, it can also handle the detachment of the hot stamping paper of decorative strips with other curvatures. Because the wind direction of the air outlet 84 is variable, and there is also a baffle 85 to accelerate the change of the wind direction, enabling it to adapt to the detachment scenarios of hot stamping paper and decorative strips in more dimensional positions. The traditional scraping rod cannot adapt to the separation of such curved decorative strips and hot stamping paper.

[0050] Specific working principle:

[0051] Place the decorative strip to be hot stamped on the lower pressing plate 4, and then move the lower pressing plate 4 to directly below the upper pressing plate 3. At this time, the hot stamping paper on the hot stamping device 5 is located above the decorative strip. Then start the upper pressing plate 3 to perform hot stamping on the decorative strip. The upper pressing plate 3 presses down to drive the lower hot stamping paper onto the decorative strip. After a period of time, the hot stamping is completed. Then the upper pressing plate 3 rises. After rising, the hot stamping paper still adheres to the decorative strip. At this time, start the hydraulic telescopic device 9 and the air pump device 10;

[0052] The hydraulic telescopic device 9 drives the slider 88 to slide in the guide groove 62 through the support ring 83. Then the sliding of the slider 88 drives the first connecting rod 75 and the second connecting rod 78 to also slide in the chute 61. After that, the sliding of the first connecting rod 75 drives the first driving gear 72 to rotate on the first rack 71, and the sliding of the second connecting rod 78 drives the second driving gear 74 to rotate on the second rack 73. The rotation directions of the first driving gear 72 and the second driving gear 74 are opposite, and thus the rotation directions of the corresponding second driven gear 79 and the first driven gear 76 are also opposite. For Figure 6 example, as the air blowing pipe 82 advances, the second driving gear 74 drives the first driven gear 76 to rotate clockwise. At this time, the first driven gear 76 drives the reciprocating gear 77 to rotate counterclockwise, thereby driving the air blowing pipe 82 to rotate counterclockwise;

[0053] At this time, the air pump device 10 inputs gas into the fixed pipe 81, and then sends the wind into the air outlet 86 through the air outlet 86, Figure 9 The shaded part in Figure 9 is the area of the air outlet 86. Then, the wind is sent out through the baffle 85 in the air outlet 84. The air outlet 84 is gradually adjusted from the obliquely upward state to the obliquely downward direction through the above steps. During this process, the air outlet 84 is still moving forward, blowing the hot stamping strip adhered to the decorative strip away, while accelerating the cooling and solidification of the hot stamping. And because the air outlet 84 is moving forward, the hot stamping paper adhered to the decorative strip is in a fluctuating state under the wind force. Coupled with the curvature of the decorative strip, the one-way wind is not conducive to the detachment of the hot stamping paper. Under the action of the baffle 85, the angle change of the wind blown out by the air outlet 84 is accelerated, and the fluctuating state of the adhesion position of the hot stamping paper and the decorative strip is accelerated, which is more conducive to the detachment of the hot stamping paper and the decorative strip. At the same time, it can also play a role in protecting the decorative strip, preventing the hot stamping material from being detached by the hot stamping paper before it is completely solidified on the decorative strip, affecting the hot stamping effect of the decorative strip. In addition, in the attached drawings of the present invention, the axial direction of the lower pressing plate 4 is parallel to the advancing direction of the separating assembly 8. If the axial direction of the lower pressing plate 4, that is, the decorative strip, is perpendicular to the separating assembly 8 or has other angles, refer to Figures 10 - 11 As shown in Figures 10 - 11 , then the baffle 85 and the wind direction adjustment of the air outlet 84 are more powerful for the detachment of the hot stamping paper with such a curved change, so that the wind force can act on the adhesion between the hot stamping paper and the decorative strip in multiple dimensions. The structure of the traditional scraping rod cannot achieve the effect of detaching the hot stamping paper as flexibly as this variable wind force.

[0054] Then, as the slider 88 continues to move forward, when the first driven gear 76 disengages from the reciprocating gear 77, at this time, the second driven gear 79 will gradually engage with the reciprocating gear 77. Since the rotation direction of the second driven gear 79 is different from that of the first driven gear 76, therefore, referring to Figure 6 As shown in Figure 6 , the second driven gear 79 rotates counterclockwise, driving the reciprocating gear 77 to rotate clockwise. Thus, the opening direction of the air outlet 84 gradually returns from the obliquely downward state to the obliquely upward state. In this way, the changing wind direction of the air outlet 84 can not only blow against the adhesion between the hot stamping paper and the decorative strip, but also blow onto the hot stamping paper, causing the hot stamping paper to increase fluctuations, thereby assisting in the detachment of the adhesion between the hot stamping paper and the decorative strip. After that, until the second driven gear 79 disengages from the reciprocating gear 77, and then continue to repeat the above process, so on and so forth, realizing the transformation of the air outlet direction of the air outlet 84 from obliquely upward to obliquely downward, accelerating the cooling and solidification of the hot stamping part of the decorative strip and the smooth detachment of the hot stamping paper and the decorative strip.

[0055] It is worth mentioning that the length of the guiding groove 62 is such that the entire separating assembly 8 can achieve at least two reciprocating rotations. Of course, if a smoother process for the release of the hot stamping paper is required, the frequency of the reciprocating rotation of the separating assembly 8 can be appropriately increased. Then, the sizes of the first driving gear 72 and the second driving gear 74 can be adjusted so that when the separating assembly 8 advances along the guiding groove 62, the first driving gear 72 and the second driving gear 74 can rotate more circles when moving on the corresponding racks.

[0056] Furthermore, it effectively solves the problem that in the existing hot stamping equipment, after hot stamping the decorative strip, the hot stamping paper needs to be separated from the decorative strip by means of a scraping rod or manually. During this process, it is affected by the curvature of the decorative strip, and since the hot stamping paper is not cured, it is easy to cause adhesion between the hot stamping paper and the decorative strip, resulting in failure of separation and affecting the product quality.

[0057] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hot stamping device for automobile decorative strips, comprising a workbench (1), a bracket (2) being arranged on the workbench (1), an upper pressing plate (3) being arranged on the bracket (2), hot stamping devices (5) being arranged on both sides of the upper pressing plate (3) on the bracket (2), hot stamping paper being rolled up on the hot stamping devices (5), a lower pressing plate (4) matching the upper pressing plate (3) being arranged on the workbench (1) just below the upper pressing plate (3), characterized in that: The workbench (1) is provided with a mounting frame (6), the mounting frame (6) is provided with a slide groove (61), a guide groove (62) is provided in the slide groove (61), a separation component (8) for blowing off the hot stamping paper on the decorative strip is slidably provided in the guide groove (62); the mounting frame (6) is also provided with a reciprocating component (7) for driving the separation component (8) to reciprocate; The separation component (8) comprises a fixed tube (81), the fixed tube (81) is rotatably connected to an air blowing tube (82), the air blowing tube (82) is provided with a flat air blowing port (84), the air blowing tube (82) is connected to the reciprocating component (7), and the air blowing tube (82) enables the air blowing port (84) to reciprocate and blow obliquely downward and obliquely upward through the reciprocating component (7); The reciprocating assembly (7) comprises a first driving gear (72) and a second driving gear (74) which are rotated in opposite directions as the fixed tube (81) reciprocates and slides, and the first driving gear (72) and the second driving gear (74) are respectively arranged on a first driven gear (76) and a second driven gear (79), the first driven gear (76) and the second driven gear (79) are respectively meshed with two sides of a reciprocating gear (77) fixed on the blowing tube (82), and the outer teeth of the first driven gear (76) and the second driven gear (79) are smooth; The length of the air blowing port (84) is matched to the width of the lower pressure plate (4); the opening end of the air blowing port (84) is rotatably connected to a baffle (85); the width of the baffle (85) is matched to the width of the air blowing port (84); the baffle (85) is used to accelerate the angle of the air blown out from the air blowing port (84).

2. The hot stamping device for automobile trim strips according to claim 1, characterized in that: An upper fixing plate (64) and a lower fixing plate (63) are symmetrically fixedly provided at the upper and lower ends of the slide groove (61) on one side of the mounting frame (6) away from the lower pressing plate (4), and a supporting plate (65) is fixedly provided on the other side of the mounting frame (6).

3. The hot stamping device for automobile trim strips according to claim 2, characterized in that: The workbench (1) is provided with a hydraulic telescopic device (9) for driving the separation component (8) to slide along the slide groove (61), and the workbench (1) is also provided with an air pump device (10) for blowing air into the separation component (8); The separation assembly (8) further comprises a slider (88), wherein the slider (88) is rotatably connected to a plurality of balls (89) at the upper and lower ends thereof, the slider (88) is slidably connected to the guide groove (62) via the balls (89), a fixing rod (87) is fixedly connected to the slider (88), an end of the fixing rod (87) away from the slider (88) is fixedly connected to one end of the fixing pipe (81), and the other end of the fixing pipe (81) is connected to the air pump device (10); a support ring (83) is rotatably connected to the end of the blowing pipe (82) adjacent to the guide groove (62), the support ring (83) is in contact with the support plate (65), and the support ring (83) is fixedly connected to the telescopic end of the hydraulic telescopic device (9).

4. The hot stamping device for automobile trim strips according to claim 3, characterized in that: An air outlet (86) adapted to the air outlet (84) is provided on one side of the fixed tube (81) adjacent to the lower pressure plate (4); the size of the air outlet (86) is adapted to the rotatable angle of the air outlet (84), and the air outlet (84) will not rotate to a vertically downward or vertically upward angle.

5. The hot stamping device for automobile trim strips according to claim 3, characterized in that: The rotational connection between the air blowing pipe (82) and the fixed pipe (81) is sealed.

6. The hot stamping device for automobile trim strips according to claim 3, characterized in that: The reciprocating assembly (7) comprises a first rack (71), the first rack (71) being fixedly connected to the lower fixed plate (63), and the bottom of the first driving gear (72) being meshed with the first rack (71); It also includes a second rack (73), the second rack (73) is fixedly connected to the bottom end of the upper fixed plate (64), the teeth of the first rack (71) are facing upwards, the teeth of the second rack (73) are facing downwards, the top of the second driving gear (74) is meshed with the second rack (73), the second driving gear (74) is fixedly connected to a first connecting rod (75), one end of the first connecting rod (75) away from the second driving gear (74) is fixedly connected to a first driven gear (76), the first driven gear (76) is meshed with one side of a reciprocating gear (77), the other side of the reciprocating gear (77) is meshed with a second driven gear (79), the second driven gear (79) is fixedly connected to one end of a second connecting rod (78), and the other end of the second connecting rod (78) is fixedly connected to the first driving gear (72); The second connecting rod (78) and the first connecting rod (75) are rotatably connected to two sides of the sliding block (88) respectively.

7. The hot stamping device for automobile trim strips according to claim 6, characterized in that: The toothed portions of the first driven gear (76) and the second driven gear (79) drive the reciprocating gear (77) to rotate at an angle less than 180 degrees.

8. The hot stamping device for automobile trim strips according to claim 1, characterized in that: In the initial state, the air blowing port (84) is opened in an obliquely upward direction.

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