Hot stamping device for automobile ornament decoration strip

Abstract

The invention relates to the technical field of hot stamping devices, in particular to a hot stamping device for an automobile ornament decoration strip, which comprises a working table, a mounting frame is arranged on the working table, a sliding groove is formed in the mounting frame, a guide groove is formed in the sliding groove, and a separation assembly for blowing away hot stamping foil on the decoration strip is arranged in the guide groove in a sliding manner. A hydraulic telescopic device for driving the separation assembly to slide along the sliding groove is arranged on the workbench, an air pump device for blowing air to the separation assembly is further arranged on the workbench, a reciprocating assembly for driving the separation assembly to rotate in a reciprocating mode is further arranged on the mounting frame, the separation assembly comprises a fixing pipe, and an air blowing pipe is rotationally connected to the outside of the fixing pipe; the air blowing pipe achieves reciprocating oblique downward and oblique upward blowing of the air blowing opening through the reciprocating assembly, the effect of enhancing wind power on the bonding position of the hot stamping foil and the decoration strip is achieved, fluctuation of the hot stamping foil is promoted, and the separation speed of the hot stamping foil is increased.

Description

Technical Field

[0001] The invention relates to the technical field of hot stamping devices, in particular to a hot stamping device for automobile decorative strips. Background Art

[0002] Car trim strips are body protection strips or interior trim strips used on cars. They increase the beauty of the side of the car body, are highly consistent with the curvature of the car body, are durable and do not deform; at the same time, they provide effective protection for the car body paint that is easily bumped when the car door is opened and closed. The basic principle of hot stamping of car trim strips is to use the hot stamping head (heating plate) to make the temperature of the upper tire mold (silicone mold), hot stamping film and hot stamping parts reach an appropriate range (usually 190~200 degrees Celsius) when they are in contact, and at the same time apply enough pressure to make the hot stamping mold fully contact with the hot stamping parts. In this way, the adhesive layer, metal layer (aluminum or chrome) 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 searching, a hot stamping device for automobile decorative strips disclosed in publication number CN118832956A includes a workbench, a shell assembly is arranged at the upper end of the workbench, a hot stamping assembly is arranged on the inner surface of the 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; the above invention can achieve the hot stamping of automobile decorative strips while collecting the waste film in time through the movement process of the shell assembly, hot stamping assembly, film collecting assembly, cleaning assembly and blowing assembly during processing, and can also clean and blow the automobile decorative strips before hot stamping.

[0004] When the decorative strip is hot stamped, after the upper pressing plate is raised, the hot stamping paper needs to be lifted up by a scraper rod or manually to separate the hot stamping paper from the decorative strip. Then, the hot stamping strip after heating and pressing by the upper pressing plate is still largely adhered to the decorative strip. The traditional method of using a scraper rod cannot adapt to the curvature of the decorative strip, which easily leads to a certain adhesion between the decorative strip and the hot stamping paper. At the same time, in the process of separating the hot stamping paper from the decorative strip, the hot stamping paper and the decorative strip are not cooled and solidified, so the hot stamping mark at the hot stamping location is easily lifted up 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 automobile decorative strips. Summary of the invention

[0006] In order to solve the problems raised in the background technology, the purpose of the present invention is to provide a hot stamping device for automobile decorative strips, which cooperates with a separation component and an air pump device. When the hot stamping is completed, the air pump device provides gas to the air blow pipe in the separation component, and the wind force acts on the adhesion between the hot stamping paper and the decorative strip through the air blow port; secondly, in conjunction with the sliding connection between the slider and the guide groove, the slider can slide in the guide groove, drive the separation component to move along the decorative strip, so that the air blow port can cover the hot stamping area in the entire length direction of the decorative strip; then, in conjunction with the reciprocating component, the air blow pipe is driven to realize the reciprocating rotation of the air blow port, and the first driven gear and the second driven gear are respectively engaged with the reciprocating gear. As the slider moves forward, the air blow pipe can be driven to rotate reciprocally to change the direction of the air blow port from obliquely upward to obliquely downward; finally, a baffle is set at the open end of the air blow port, and the baffle can rotate inside the air blow port to further adjust the angle change of the wind force, so as to enhance the effect of the wind force on the adhesion position of the hot stamping paper and the decorative strip, promote the fluctuation of the hot stamping paper, and accelerate its separation speed.

[0007] To achieve the above-mentioned purpose, the present invention provides a hot stamping device for automobile decorative strips, which includes a workbench, a bracket is arranged on the workbench, 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, hot stamping paper is rolled up on the hot stamping device, a lower pressing plate adapted to the upper pressing plate is arranged on the workbench and located directly below the upper pressing plate, the hot stamping paper passes over the lower pressing plate, and the lower pressing plate is used to place the decorative strip to be hot stamped; Preferably, a mounting frame is provided on the workbench, a slide groove is provided on the mounting frame, a guide groove is provided in the slide groove, a separation component for blowing off the hot stamping paper on the decorative strip is slidably provided in the guide groove, a hydraulic telescopic device for driving the separation component to slide along the slide groove is provided on the workbench, an air pump device for blowing air to the separation component is also provided on the workbench, and a reciprocating component for driving the separation component to reciprocate is also provided on the mounting frame; Wherein, the separation component includes a fixed tube, a blowing tube is rotatably connected to the outside of the fixed tube, a flat blowing port is arranged on the blowing tube, the blowing port opening faces the lower pressure plate, and an air outlet matched with the blowing port is arranged on the side of the fixed tube adjacent to the lower pressure plate, the blowing port is connected with the fixed tube through the air outlet, the fixed tube is connected with the air pump device, the blowing tube is connected with the reciprocating component, and the blowing tube realizes reciprocating oblique downward and oblique upward blowing of the blowing port through the reciprocating component.

[0008] As a further improvement of the technical solution, an upper fixing plate and a lower fixing plate are symmetrically fixed at the upper and lower ends of the slide groove on one side of the mounting frame away from the lower pressure plate, and a support plate is fixed on the other side of the mounting frame.

[0009] As a further improvement of the present technical solution, the separation component also 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 to the guide groove through the ball bearings, a fixing rod is fixedly connected to the slider, an end of the fixing rod away from the slider is fixedly connected to one end of the fixed tube, and the other end of the fixed tube is connected to the air pump device; a support ring is rotatably connected to the end of the blowing tube adjacent to the guide groove, the support ring is fitted with the support plate, and the support ring is fixedly connected to the telescopic end of the hydraulic telescopic device.

[0010] As a further improvement of the present technical solution, the length of the blowing outlet is adapted to the width of the lower pressure plate, the opening end of the blowing outlet is rotatably connected to a baffle, the width of the baffle is adapted to the width of the blowing outlet, and the baffle is used to accelerate the angle transformation of the wind blown out from the blowing outlet.

[0011] 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.

[0012] As a further improvement of the technical solution, the rotational connection between the blowing pipe and the fixed pipe is sealed.

[0013] Preferably, the reciprocating assembly comprises a first rack, the first rack is fixedly connected to the lower fixed plate, and a first driving gear is meshed on the first rack; It also includes a second rack, which is fixedly connected to the bottom end of the upper fixed plate, and the teeth of the first rack face upwards, and the teeth of the second rack face downwards, a second driving gear is meshed on the second rack, and a first connecting rod is fixedly connected to the second driving gear, and a first driven gear is fixedly connected to an end of the first connecting rod away from the second driving gear, the first driven gear is meshed with one side of a reciprocating gear, the reciprocating gear is fixedly connected to the blowing pipe, and a second driven gear is meshed on the other side of the reciprocating gear, the second driven gear is fixedly connected to one end of the second connecting rod, and the other end of the second connecting rod is fixedly connected to the first driving gear; The second connecting rod and the first connecting rod are rotatably connected to two sides of the sliding block respectively.

[0014] As a further improvement of the present technical solution, the toothed portions of the outer peripheries 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 at an angle less than 180 degrees.

[0015] Preferably, in an initial state, the air outlet opening is in an obliquely upward direction.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In the hot stamping device for automobile decorative strips, a flat air blowing port is arranged on the air blowing port through the cooperation of the air blowing pipe and the reciprocating assembly, and the air blowing port is reciprocated and blown obliquely downward and obliquely upward through the reciprocating assembly (including a first rack, a first driving gear, a second rack, a second driving gear, a first connecting rod, a first driven gear, a reciprocating gear, a second driven gear and a second connecting rod), so that the air blowing port can blow to the adhesion between the hot stamping paper and the decorative strip at multiple angles, accelerate the cooling and solidification of the hot stamping, and at the same time increase the fluctuation of the hot stamping paper, which is conducive to the smooth separation of the hot stamping paper and the decorative strip; secondly, by setting a baffle, the open end of the air blowing port is rotatably connected to the baffle, and the baffle is used to accelerate the angle change of the wind blown out of the air blowing port. The existence of the baffle accelerates the angle change of the wind blown out of the air blowing port, so that the wind force can act more flexibly on the adhesion between the hot stamping paper and the decorative strip and on the hot stamping paper, thereby improving the efficiency and quality of the separation of the hot stamping paper from the decorative strip.

[0017] 2. In the hot stamping device for automobile decorative strips, through the connecting design of the fixed tube, the air blowing tube and the air outlet, the air pump device inputs gas into the fixed tube, and then sends wind into the air blowing port through the air outlet, ensuring the continuous and stable supply of wind force, providing sufficient wind force support for the air blowing port, and helping to achieve the smooth separation of the hot stamping paper and the decorative strip; secondly, through the meshing design of the gears in the reciprocating component, the first driven gear and the second driven gear are respectively meshed with the reciprocating gear, and the rotation of the gears is driven by the sliding of the slider to achieve the reciprocating motion of the air blowing tube, so that the wind direction of the air blowing port can be continuously changed, which is more adapted to the separation requirements of the hot stamping paper of decorative strips with different curvatures, and improves the applicability and flexibility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the lower pressing plate of the present invention; Figure 3 This is a structural schematic diagram of the mounting frame of the present invention; Figure 4 The second structural schematic diagram of the mounting frame of the present invention; Figure 5 It is a structural cross-sectional view of the mounting frame of the present invention; Figure 6 is a partial structural schematic diagram of the first driven gear of the present invention; Figure 7 It is a structural schematic diagram of the reciprocating assembly of the present invention; Figure 8 It is a structural explosion diagram of the air blowing pipe of the present invention; Fig. 9It is a structural front view of the air blowing pipe of the present invention; Fig.10 This is a schematic diagram of the working state of the air blowing pipe of the present invention; Fig.11 The second schematic diagram of the working state of the air blowing pipe of the present invention.

[0019] The meaning of each number in the figure is: 1. Workbench; 2. Bracket; 3. Upper pressing plate; 4. Lower pressing plate; 5. Hot stamping device; 6. Mounting frame; 7. Reciprocating assembly; 8. Separation assembly; 9. Hydraulic telescopic device; 10. Air pump device; 61. slide groove; 62. guide groove; 63. lower fixing plate; 64. upper fixing plate; 65. support plate; 71. first rack; 72. first drive gear; 73. second rack; 74. second drive gear; 75. first connecting rod; 76. first driven gear; 77. reciprocating gear; 78. second connecting rod; 79. second driven gear; 81. Fixed tube; 82. Air blowing tube; 83. Support ring; 84. Air blowing port; 85. Baffle; 86. Air outlet; 87. Fixed rod; 88. Sliding block; 89. Ball bearing. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] After the existing hot stamping equipment has gilded the decorative strips, it is necessary to separate the gilding paper from the decorative strips by a scraper or manually. This process is affected by the curvature of the decorative strips, and because the gilding paper is not solidified, it is easy for the gilding paper to stick to the decorative strips, resulting in separation failure, affecting product quality.

[0022] To this end, the present invention provides a hot stamping device for automobile decorative strips, see Figure 1 As shown, 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, hot stamping paper is rolled up on the hot stamping device 5, and a lower pressing plate 4 adapted to the upper pressing plate 3 is arranged on the workbench 1 just below the upper pressing plate 3, the hot stamping paper passes over the lower pressing plate 4, and the lower pressing plate 4 is used to place the decorative strip to be hot stamped.

[0023] For details, see Figure 1-Figure 5As shown, a mounting frame 6 is provided on the workbench 1, a slide groove 61 is provided on the mounting frame 6, 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, a hydraulic telescopic device 9 for driving the separation component 8 to slide along the slide groove 61 is provided on the workbench 1, an air pump device 10 for blowing air to the separation component 8 is also provided on the workbench 1, and a reciprocating component 7 for driving the separation component 8 to reciprocate is also provided on the mounting frame 6; Among them, see Figure 7-Figure 9 As shown, the separation component 8 includes a fixed tube 81, and the fixed tube 81 is rotatably connected to a blow pipe 82. The blow pipe 82 is provided with a flat blow port 84. The flat blow port 84 can increase the wind force and make the wind force more concentrated on the adhesion between the gilding paper and the decorative strip. Moreover, since the lower pressing plate 4 has a certain width, the flat blow port 84 can directly and evenly act on the adhesion between the entire lower pressing plate 4 and the gilding paper. If the structure is porous or multiple blow ports 84, it is better than the flat blow port 84 of the present invention. For a structure with a blowing port 84 whose width is adapted to the width of the lower pressure plate 84, it is impossible to achieve uniform wind force acting on the adhesion; the blowing port 84 opens toward the lower pressure plate 4, and a side of the fixed tube 81 adjacent to the lower pressure plate 4 is provided with an air outlet 86 adapted to the blowing port 84, the blowing port 84 is connected to the fixed tube 81 through the air outlet 86, the fixed tube 81 is connected to the air pump device 10, the blowing pipe 82 is connected to the reciprocating component 7, and the blowing pipe 82 realizes the reciprocating oblique downward and oblique upward blowing of the blowing port 84 through the reciprocating component 7.

[0024] An upper fixing plate 64 and a lower fixing plate 63 are symmetrically fixedly disposed at the upper and lower ends of the slide slot 61 on one side of the mounting frame 6 away from the lower pressing plate 4 , and a supporting plate 65 is fixedly disposed on the other side of the mounting frame 6 .

[0025] For further information, see Figure 5 and Figure 7-Figure 9 As shown, the separation assembly 8 also includes a slider 88, and a plurality of balls 89 are rotatably connected at the upper and lower ends of the slider 88. The slider 88 is slidably connected in the guide groove 62 through the balls 89. A fixing rod 87 is fixedly connected to the slider 88, and one 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 one end of the blowing pipe 82 adjacent to the guide groove 62, and the support ring 83 is fitted with the support plate 65, and the support ring 83 is fixedly connected to the telescopic end of the hydraulic telescopic device 9, so that the support ring 83 can be pushed by the telescopic movement of the hydraulic telescopic device 9, thereby making the entire separation assembly 8 move forward; It is worth mentioning that the length of the blowing port 84 is adapted to the width of the lower pressure plate 4, and the opening end of the blowing port 84 is rotatably connected with a baffle 85, the width of the baffle 85 is adapted to the width of the blowing port 84, and the length of the baffle 85 is also adapted to the length of the blowing port 84, and the baffle 85 is used to accelerate the angle of the wind blown out from the blowing port 84; in this way, when the blowing port 84 blows out wind, the wind acts on the baffle 85, which will cause the baffle 85 to rotate in the blowing port 84, thereby Fig. 9 It can also be seen that the wind blowing out from the air outlet 84 is accelerated thereby changing its angle; moreover, the size of the air outlet 86 is adapted to the rotatable angle of the air outlet 84; in the initial state, the opening of the air outlet 84 is in an oblique upward direction, and the air outlet 84 will not rotate to a vertical downward or vertical upward angle, thereby ensuring that the wind blown out from the air outlet 84 acts efficiently on the adhesion between the gilded paper and the decorative strip and on the gilded paper; if it is directed vertically upward, excessive wind force will be caused to the gilded paper, resulting in damage to the gilded paper; if it is directed vertically downward, the wind force will not act on the adhesion between the decorative strip and the gilded paper; moreover, the rotating connection between the air pipe 82 and the fixed pipe 81 is sealed, so that the rotation of the air pipe 82 will not cause air leakage.

[0026] For further information, see Figure 3-Figure 5 As shown, the reciprocating assembly 7 includes a first rack 71, which is fixedly connected to the lower fixed plate 63, and a first driving gear 72 is meshed on the first rack 71; the reciprocating assembly 7 also includes a second rack 73, which is fixedly connected to the bottom end of the upper fixed plate 64, and the teeth of the first rack 71 face upwards, and the teeth of the second rack 73 face downwards, and a second driving gear 74 is meshed on the second rack 73, and a first connecting rod 75 is fixedly connected to the second driving gear 74, and the end of the first connecting rod 75 away from the second driving gear 74 is fixedly connected to the first driven gear 76, and the first driven gear 76 is meshed with one side of a reciprocating gear 77, and the reciprocating gear 77 is fixedly connected to the blowing pipe 82, and the other side of the reciprocating gear 77 is meshed with a second driven gear 79, and the second driven gear 79 is meshed with the second driven gear 79. The driven gear 79 is fixedly connected to one end of the second connecting rod 78, and the other end of the second connecting rod 78 is fixedly connected to the first driving gear 72; it should also be noted that the second connecting rod 78 and the first connecting rod 75 are rotatably connected to the two sides of the slider 88, so that combined with the scene in which the slider 88 slides in the guide 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, and because the first driving gear 72 is meshed with the first rack 71 with the teeth facing forward, and the second driving gear 74 is meshed with the second driving gear 74 with the teeth facing downward, the first driven gear 76 and the second driven gear 79 can be realized. Reciprocating motion of the blowing pipe 82 can be achieved by the forward movement of the slider 88, that is, see Figure 6As shown, the forward movement of the slider 88 can drive the first driven gear 76 and the second driven gear 79 to mesh with the reciprocating gear 77 respectively in a timely manner, thereby realizing that the air outlet 84 can rotate from the obliquely upward opening state to the obliquely downward rotating state, and then restore the initial state and so on. This mechanical reciprocating structure is more stable than the motor and does not need to be adjusted frequently; The cam 85 engages with the second driven gear 79 and the second driven gear 79, and the cam 86 engages with the second driven gear 79. The cam 85 engages with the first driven gear 76 and the second driven gear 79, and the cam 86 engages with the second driven gear 79. The cam 86 engages with the second driven gear 79 and the second driven gear 79, and the cam 86 engages with the second driven gear 79. The cam 86 engages with the second driven gear 79 and the second driven gear 79, and the cam 86 engages with the second driven gear 79. The cam 86 engages with the second driven gear 79, and the second driven gear 79 engages with the second driven gear 79. The cam 86 engages with the second driven gear 79, and the second driven gear 79 engages with the second driven gear 79. The cam 86 engages with the second driven gear 79, and the second driven gear 79 engages with the second driven gear 79.

[0027] In addition, see Figure 6 As shown, the outer teeth of the first driven gear 76 and the second driven gear 79 are smooth, the first driven gear 76 and the second driven gear 79 have the same number of teeth, and 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, so that the wind direction of the air outlet 84 will not rotate to vertically upward or vertically downward. The present invention mainly aims to keep the wind direction of the air outlet 84 in the range of obliquely upward and obliquely downward. This is more conducive to the wind acting on the adhesion between the hot stamping paper and the decorative strip and on the hot stamping paper. Acting on the adhesion can accelerate the cooling and solidification of the hot stamping, which is convenient for the separation of the hot stamping paper. Acting on the hot stamping paper can accelerate the fluctuation of the hot stamping paper (see Fig.11 As can be seen), the detachment of the gilded paper from the decorative strip is assisted, and such a setting can also enhance the applicability of the blowing port 84, in addition to helping the detachment of the gilded paper from the decorative strip of the structural style of the lower pressing plate 4 in the attached figure, as Figure 10-11 As shown, it can also handle the separation of hot stamping paper from decorative strips with other curvatures, because the wind direction of the air outlet 84 is changeable, and there is a baffle 85 to accelerate the change of wind direction, so that it can adapt to the separation scenarios of hot stamping paper and decorative strips in more dimensional positions, while the traditional scraper rod cannot adapt to the separation of decorative strips and hot stamping paper with this curvature.

[0028] Specific working principle: The decorative strip to be stamped is placed on the lower pressing plate 4, and then the lower pressing plate 4 is moved to the bottom of 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 the upper pressing plate 3 is started to stamp the upper decorative strip. The upper pressing plate 3 is pressed down to drive the hot stamping paper to the decorative strip. After a period of time, the hot stamping is completed. Then the upper pressing plate 3 is raised. After the rise, the hot stamping paper is still attached to the decorative strip. At this time, the hydraulic expansion device 9 and the air pump device 10 are started; The hydraulic telescopic device 9 drives the slider 88 to slide in the guide groove 62 through the support ring 83, and then the slider 88 slides to drive the first connecting rod 75 and the second connecting rod 78 to slide in the slide groove 61. After that, the first connecting rod 75 slides to drive the first driving gear 72 to rotate on the first rack 71, and the second connecting rod 78 slides to drive the second driving gear 74 to rotate on the second rack 73. The first driving gear 72 and the second driving gear 74 rotate in opposite directions, and then the corresponding second driven gear 79 and the first driven gear 76 also rotate in opposite directions. Figure 6 For example, when the air blowing tube 82 moves forward, the second driving gear 74 drives the first driven gear 76 to rotate clockwise, and the first driven gear 76 drives the reciprocating gear 77 to rotate counterclockwise, thereby driving the air blowing tube 82 to rotate counterclockwise; At this time, the air pump device 10 inputs gas into the fixed pipe 81, and then sends air into the blowing port 84 through the air outlet 86. Fig. 9 The shaded part in the middle is the air outlet 86 area, and then the air is sent out through the baffle 85 in the air outlet 84. The air outlet 84 is gradually adjusted from the oblique upward state to the oblique downward direction through the above steps. During this process, the air outlet 84 continues to move forward, blowing off the hot stamping strip adhered to the decorative strip, while accelerating the cooling and solidification of the hot stamping. In addition, since 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 during this process, and the curvature of the decorative strip is added. Therefore, the one-way wind is not conducive to the separation of the hot stamping paper. Under the action of 85, the change of the angle of the wind blown out of the blowing port 84 is accelerated, and the fluctuation state of the adhesion position of the hot stamping paper and the decorative strip is accelerated, which is more conducive to the separation of the hot stamping paper and the decorative strip. At the same time, it can also protect the decorative strip to prevent the hot stamping material from being separated by the hot stamping paper before it is completely solidified on the decorative strip, thereby 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 forward direction of the separation component 8. If the axial direction of the lower pressing plate 4, that is, the decorative strip, is perpendicular to the separation component 8 or has other angles, refer to Figure 10-11 As shown in the situation, the wind direction adjustment of the baffle 85 and the air outlet 84 is more effective in separating the hot stamping paper with a changing curvature, so that the wind force can act on the adhesion between the hot stamping paper and the decorative strip in multiple dimensions, while the traditional scraper rod structure cannot achieve the effect of separating the hot stamping paper as flexibly as this changing wind force.

[0029] Then, as the slider 88 continues to move forward, when the first driven gear 76 is disengaged from the reciprocating gear 77, 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, Figure 6 , the second driven gear 79 rotates counterclockwise, driving the reciprocating gear 77 to rotate clockwise, so that the opening direction of the air outlet 84 gradually recovers from obliquely downward to obliquely upward. In this way, the wind direction of the air outlet 84 can be changed not only to the adhesion between the gilding paper and the decorative strip, but also to the gilding paper, so that the gilding paper increases the fluctuation, thereby assisting the detachment of the adhesion between the gilding paper and the decorative strip, and then until the second driven gear 79 disengages from the reciprocating gear 77, and then continue to repeat the above process, and repeat this cycle to realize the change of the direction of the air outlet of the air outlet 84 from obliquely upward to obliquely downward, thereby accelerating the cooling and solidification of the gilding part of the decorative strip and the smooth detachment of the gilding paper and the decorative strip.

[0030] It is worth mentioning that the length of the guide groove 62 is sufficient for the entire separation component 8 to achieve reciprocating rotation at least twice. Of course, if a smoother hot stamping paper separation process is required, the frequency of reciprocating rotation of the separation component 8 can be appropriately increased. Then the size of the first drive gear 72 and the second drive gear 74 can be adjusted to achieve that when the separation component 8 moves along the guide groove 62, the first drive gear 72 and the second drive gear 74 can rotate more circles when moving on the corresponding racks.

[0031] This effectively solves the problem that after the existing hot stamping equipment has gilded the decorative strip, the hot stamping paper needs to be separated from the decorative strip by a scraper or manually. This process is affected by the curvature of the decorative strip, and because the hot stamping paper is not solidified, it is easy for the hot stamping paper and the decorative strip to stick together, resulting in separation failure, affecting product quality.

[0032] 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 descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached 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 rotate in opposite directions as the fixed tube (81) reciprocates and slides. 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). The outer teeth of the first driven gear (76) and the second driven gear (79) are smooth.

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: 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).

5. The hot stamping device for automobile trim strips according to claim 4, 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.

6. The hot stamping device for automobile trim strips according to claim 4, characterized in that: The rotational connection between the air blowing pipe (82) and the fixed pipe (81) is sealed.

7. 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.

8. The hot stamping device for automobile trim strips according to claim 7, 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.

9. 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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