A metal plate structure member paint surface texture heat transfer printing device and heat transfer printing method

Abstract

The application discloses a kind of metal plate structural member paint surface texture heat transfer printing device and heat transfer printing method, metal plate structural member paint surface texture heat transfer printing device includes support table, scratch film pressing mechanism and heating mechanism, the upper end of support table is spaced into film area and heating area along front-back direction, scratch film pressing mechanism and heating mechanism are all suspended in the upper of support table, and scratch film pressing mechanism is located just above film area, heating mechanism is located just above heating area, metal plate structural member with transfer film is horizontally placed on support table, and first in film area by scratch film pressing mechanism the transfer film of groove texture on metal plate structural member is scratched and is pressed to be consistent with groove wall, then metal plate structural member is transferred to heating area, and by heating mechanism on the transfer film of metal plate structural member heating to make the pattern on transfer film transfer to metal plate structural member, it does not need to be scratched artificially, and work efficiency is high.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of metal plate structure processing equipment, and particularly relates to a metal plate structure paint surface texture hot transfer printing device and a hot transfer printing method. BACKGROUND

[0002] Hot transfer printing is a common metal surface coating technology, which is a process method and process of transferring the pattern on the printing plate to the printing material. At present, the metal plate structure pattern transfer mainly adopts hot stamping, which is to attach the wet transfer paper to the metal plate structure treated with primer, and then to transfer the pattern on the transfer paper to the metal plate structure by heating and pressing. After that, the transfer paper is removed to complete the transfer printing. However, for the groove pattern on the surface of the metal plate structure, the transfer film will form a striped bubble at the groove pattern, that is, the transfer film does not contact the groove wall at this position, and the pattern on the corresponding hot transfer film at the groove pattern cannot be transferred to the metal plate structure. At this time, it is usually necessary to manually hold a tool to cut the hot transfer film at the groove, and then press it to fit on the groove wall, but the operation efficiency is low. SUMMARY

[0003] In order to solve the above technical problems, the purpose of the present application is to provide a metal plate structure paint surface texture hot transfer printing device with simple structure and high automation.

[0004] In order to achieve the above purpose, the technical scheme of the present application is as follows: a metal plate structure paint surface texture hot transfer printing device, comprising a support table, a scratch film pressing mechanism and a heating mechanism, the upper end of the support table is divided into a film scratching area and a heating area along the front and back direction, the scratch film pressing mechanism and the heating mechanism are both suspended above the support table, the scratch film pressing mechanism is located directly above the film scratching area, and the heating mechanism is located directly above the heating area, the metal plate structure with transfer film is placed horizontally on the support table, and the transfer film at the groove of the metal plate structure is cut and pressed to fit with the groove wall by the scratch film pressing mechanism in the film scratching area, and then the metal plate structure is transferred to the heating area, and the transfer film on the metal plate structure is heated by the heating mechanism to transfer the pattern on the transfer film to the metal plate structure.

[0005] The beneficial effects of the above technical scheme are that the metal plate structure with transfer film can be placed on the film scratching area of the support table, the hot transfer film at the groove is scratched and pressed by the scratch film pressing mechanism according to the pre-set scratch track, which does not need to be scratched manually and has high work efficiency, and the metal plate structure after scratch processing can be pushed to the heating area for heating to transfer the pattern on the hot transfer film to the metal plate structure.

[0006] In the above technical solution, the upper end of the support platform is equipped with rolling elements at even intervals in both the film-cutting area and the heating area, and the upper end of the rolling elements protrudes from the upper end of the support platform.

[0007] The beneficial effect of the above technical solution is that it makes it easier and less strenuous to move the metal plate structural components back and forth on the support platform.

[0008] The heating mechanism described in the above technical solution includes a top plate, a telescopic component, and a heating plate. The top plate is a square plate that is horizontally suspended directly above the heating area. The top plate is connected to the upper edge of the support platform via multiple first support legs. The heating plate is horizontally placed between the heating area and the top plate. The telescopic component is installed on the top plate with its telescopic end facing downwards and connected to the heating plate. The heat radiation surface of the heating plate faces downwards to heat the upper end of the metal plate structure in the heating area. The telescopic component is used to adjust the distance between the heating plate and the metal plate structure.

[0009] The beneficial effects of the above technical solution are: its structure is simple, and when the heating plate is reset, it does not affect the movement of the metal plate structure to the heating area. When the heating plate moves down to the metal plate structure under the drive of the telescopic component, the heat loss during heating is minimized.

[0010] The above technical solution includes four telescopic components, which are respectively installed in the middle of the lower end of the top plate and are arranged in a rectangular shape. The telescopic end of each telescopic component is connected to the corresponding upper end of the heating plate. The four telescopic components extend or retract synchronously to drive the heating plate to move downward or upward.

[0011] The beneficial effect of the above technical solution is that it provides excellent support.

[0012] The telescopic component described in the above technical solution is a hydraulic cylinder, a telescopic pneumatic cylinder, or a telescopic electric cylinder.

[0013] The advantages of the above technical solution are that it has a simple structure and is easy to control.

[0014] The scratching and pressing mechanism described in the above technical solution includes a four-degree-of-freedom moving part and a scratching and pressing assembly. The four-degree-of-freedom moving part is suspended directly above the scratching area with its driving end facing downwards. The scratching and pressing assembly is installed on the driving end of the four-degree-of-freedom moving part. The scratching and pressing assembly has a scratching blade and a pressing wheel, with the blade of the scratching blade facing downwards. The four-degree-of-freedom moving part is used to drive the scratching and pressing assembly to move in three dimensions and rotate horizontally in the scratching area, so that the scratching blade can scratch the transfer film at the groove on the metal plate structure, and the pressing wheel can press the transfer film at the groove to the exhaust and adhere it to the groove wall.

[0015] The advantages of the above technical solution are: its structure is simple, and the scratching and pressing assembly is driven by a four-degree-of-freedom moving part to move flexibly in the space above the metal plate structure. At the same time, the scratching and pressing assembly can be flexibly rotated according to the direction of the texture, so that it can scratch and press the grooves of complex patterns.

[0016] The four-degree-of-freedom moving component in the above technical solution includes a three-dimensional moving component and a rotary driving component. The lower edge of the three-dimensional moving component is connected to the edge of the scribing area through multiple second support legs. The driving end of the three-dimensional moving component faces downward. The rotary driving component is installed on the driving end of the three-dimensional moving component, and the driving end of the rotary driving component faces downward and is connected to the scribing and pressing assembly in a transmission connection.

[0017] The beneficial effects of the above technical solution are: its structure is simple, so that the three-dimensional moving part can drive the rotating driving part to move the scratching and pressing assembly in three dimensions in space, and the rotating driving part can drive the scratching and pressing assembly to rotate to adjust the position of the pressing wheel relative to the scratching knife.

[0018] The scratching and pressing assembly described in the above technical solution also includes a fine-tuning telescopic component. The fine-tuning telescopic component is installed on the driving end of the rotary drive component, with the telescopic end of the fine-tuning telescopic component facing downwards. The scratching blade is installed at the telescopic end of the fine-tuning telescopic component, with its blade facing downwards. The wheel seat of the pressing wheel is connected to the fine-tuning telescopic component.

[0019] The beneficial effect of the above technical solution is that the vertical position of the scratching knife can be finely adjusted by the micro-adjustment telescopic component to ensure that the blade of the scratching knife only acts on the heat transfer film and does not come into contact with the metal surface of the metal plate structure.

[0020] The fine-tuning telescopic component in the above technical solution includes a cylinder, a rod, a spring, an electromagnetic component, and an electromagnetic worktable. The electromagnetic worktable is horizontally installed in the scribing area of ​​the support platform, and the rolling component of the scribing area is located around the electromagnetic worktable. The cylinder is vertically arranged, and the rod is vertically arranged in the middle of the cylinder, with both ends penetrating the cylinder and extending out of the cylinder. A retaining ring is provided on the rod inside the cylinder. The spring is placed inside the cylinder and sleeved on the rod, located above the retaining ring. The scribing knife is installed at the lower end of the rod. The electromagnetic component is installed on the rod and located below the cylinder. The driving end of the rotary drive and the wheel seat of the pressure wheel are both connected to the cylinder. The cylinder is made of a non-magnetic material. The ends of the electromagnetic worktable and the electromagnetic component with the same magnetic poles are close to each other. The magnetic force of the electromagnetic worktable tends to drive the electromagnetic component to move the rod and the scribing knife upward against the elastic force of the spring.

[0021] The beneficial effects of the above technical solution are as follows: the spring applies a downward force to the rod, while the electromagnetic worktable applies an upward force to the rod through the electromagnetic component. By adjusting the magnetic force of the electromagnetic worktable and / or the magnetic force of the electromagnetic component, the vertical position of the rod can be precisely adjusted, thereby adjusting the position of the scrubbing knife.

[0022] The second objective of this invention is to provide a simple method for heat transfer printing of metal plate structural parts.

[0023] To achieve the above objectives, the technical solution of the present invention is as follows: a heat transfer method for metal plate structural components, which uses the heat transfer device for paint texture of metal plate structural components as described above, and includes the following steps:

[0024] Step 1: Apply heat transfer film evenly to both sides of the metal plate structure beforehand;

[0025] Step 2: Place the metal plate structure processed in Step 1 horizontally on the support platform in the scribing area, and position the metal plate structure in the scribing area;

[0026] Step 3: The scratching and pressing mechanism scratches open the heat transfer film at the groove of the metal plate structure and presses it to fit the groove wall;

[0027] Step 4: Push the metal plate structure to the heating area and position it. The heating mechanism heats the upper end of the metal plate structure. After the heat transfer film on the metal plate structure is heated, stop heating.

[0028] Step 5: Remove the metal plate structure from the support platform, flip it over, and repeat steps 1-4 to process the heat transfer film on the other side of the metal plate structure. After the heat transfer film on both sides of the metal plate structure is transferred, remove the metal plate structure from the support platform.

[0029] The advantages of the above technical solution are that it is easy to operate, highly automated, and efficient. Attached Figure Description

[0030] Figure 1 The image shows an elevation view of the metal plate structure heat transfer device for paint texture of metal plate structure according to an embodiment of the present invention, which includes a metal plate structure.

[0031] Figure 2 This is a simplified structural diagram of the scratch-pressing mechanism described in an embodiment of the present invention;

[0032] Figure 3 This is a schematic diagram of the structure of the fine-tuning telescopic component described in an embodiment of the present invention;

[0033] Figure 4This is an elevation view of the heat transfer device for paint texture on metal plate structural parts according to an embodiment of the present invention.

[0034] In the figure: 1 Support platform, 11 Scribing area, 12 Heating area, 13 Rolling component, 2 Scribing and pressing mechanism, 21 Four-degree-of-freedom moving component, 22 Scribing and pressing assembly, 221 Scribing knife, 222 Pressing wheel, 223 Fine-tuning telescopic component, 2231 Cylinder, 2232 Rod, 2233 Spring, 2234 Electromagnetic component, 2235 Electromagnetic worktable, 2236 Retaining ring, 23 Second support leg, 3 Heating mechanism, 31 Top plate, 32 Telescopic component, 33 Heating plate, 34 First support leg, 4 Metal plate structural component. Detailed Implementation

[0035] The principles and features of the present invention are described below. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0036] Example 1

[0037] like Figures 1-4 As shown, this embodiment provides a heat transfer device for paint texture on metal plate structural parts, including a support platform 1, a scratching and pressing mechanism 2, and a heating mechanism 3. The upper end of the support platform 1 is divided into a scratching area 11 and a heating area 12 along the front-to-back direction. The scratching and pressing mechanism 2 and the heating mechanism 3 are both suspended above the support platform 1, with the scratching and pressing mechanism 2 located directly above the scratching area 11 and the heating mechanism 3 located directly above the heating area 12. A metal plate structural part 4 with a transfer film is placed horizontally on the support platform 1, and the scratching and pressing mechanism 2 first transfers the transfer film at the grooves on the metal plate structural part 4 in the scratching area 11. The metal plate structure 4 is cut and pressed to fit the groove wall, and then transferred to the heating zone 12. The heating mechanism 3 heats the transfer film on the metal plate structure 4 so that the pattern on the transfer film is transferred to the metal plate structure 4. In this way, the metal plate structure with the transfer film can be placed on the scribing area of ​​the support table. The scribing and pressing mechanism 2 scratches and presses the heat transfer film at the groove according to the preset scribing trajectory. It does not require manual scribing and has high work efficiency. After the scribing treatment, the metal plate structure can be pushed to the heating zone for heating so that the pattern on the heat transfer film is transferred to the metal plate structure.

[0038] In the above technical solution, the upper end of the support platform 1 is evenly fitted with rolling elements 13 in both the sizing area 11 and the heating area 12 (the rolling elements can be rollers or balls; if they are rollers, their axles are set in the left-right direction, and the rollers rotate back and forth). The upper end of the rolling elements 13 protrudes from the upper end of the support platform 1, which makes it easier and less strenuous to push the metal plate structure back and forth on the support platform.

[0039] The heating mechanism 3 described in the above technical solution includes a top plate 31, a telescopic member 32, and a heating plate 33. The top plate 31 is a square plate, which is horizontally suspended directly above the heating zone 12. The top plate 31 is connected to the upper edge of the support platform 1 through multiple first support legs 34. The heating plate 33 is horizontally placed between the heating zone 12 and the top plate 31. The telescopic member 32 is installed on the top plate 31, with its telescopic end facing downward and connected to the heating plate 33. The heat radiation surface of the heating plate 33 faces downward (i.e., the heating element of the heating plate is located at its lower end, and its main heat is mainly diffused downward). The heating plate 33 heats the upper part of the metal plate structure 4 in the heating zone 12. An insulating coating (such as a hollow ceramic microsphere nano-ceramic heat-insulating coating) can be applied to the back of the heating plate to reduce heat loss. The telescopic component 32 adjusts the distance between the heating plate 33 and the metal plate structure 4. Its simple structure ensures that the heating plate does not affect the movement of the metal plate structure to the heating zone when it is reset, and minimizes heat loss when the heating plate moves down close to the metal plate structure under the drive of the telescopic component. The heating temperature of the heating plate on the metal plate structure can be within the heat transfer temperature range of the heat transfer film (depending on the specific heat transfer film). The size of the heating plate is comparable to the size of the metal plate structure.

[0040] The above technical solution provides four telescopic components 32, which are respectively installed in the middle of the lower end of the top plate 31 and are arranged in a rectangular shape. The telescopic end of each telescopic component 32 is connected to the corresponding position of the upper end of the heating plate 33. The four telescopic components 32 extend or retract synchronously to drive the heating plate 33 to move downward or upward, and the support effect is good.

[0041] The telescopic component 32 described in the above technical solution is a hydraulic cylinder, a telescopic pneumatic cylinder, or a telescopic electric cylinder, which has a simple structure and is easy to control.

[0042] The scratching and pressing mechanism 2 described in the above technical solution includes a four-degree-of-freedom moving member 21 and a scratching and pressing assembly 22. The four-degree-of-freedom moving member 21 is suspended directly above the scratching area 11, with its driving end facing downwards. The scratching and pressing assembly 22 is mounted on the driving end of the four-degree-of-freedom moving member 21. The scratching and pressing assembly 22 has a scratching blade 221 and a pressing wheel 222, with the blade of the scratching blade 221 facing downwards. The four-degree-of-freedom moving member 21 is used to drive the scratching and pressing assembly 22 in the scratching area 11. The scribing area 11 moves in three dimensions and rotates horizontally so that the scribing blade 221 cuts open the transfer film at the groove on the metal plate structure 4, and the pressing roller 222 presses the transfer film at the groove down to the exhaust and adheres it to the groove wall. Its structure is simple. In this way, the scribing and pressing assembly is driven by a four-degree-of-freedom moving part to move flexibly in the space above the metal plate structure. At the same time, the scribing and pressing assembly can also be flexibly rotated according to the direction of the pattern so that it can scribing and pressing the groove with complex patterns.

[0043] The four-degree-of-freedom moving component 21 in the above technical solution includes a three-dimensional moving component (which can directly adopt an existing XYZ three-axis electric slide, whose drive end can move in three dimensions in front-back, left-right and up-down) and a rotary drive component (the rotary floating component can adopt a servo motor. It should be noted that the rotation range of the drive end of the rotary drive component is 360° (it can rotate in both directions within this angle), that is, it cannot continuously rotate too large an angle in one direction, otherwise the wire of the electromagnetic component will become tangled). The lower edge of the three-dimensional moving component is connected to the edge of the scribing area 11 through multiple second support legs 23. The drive end of the three-dimensional moving component faces downward. The rotary drive component is installed on the drive end of the three-dimensional moving component. The drive end of the rotary drive component faces downward and is connected to the scribing and pressing assembly 22 through transmission. Its structure is simple. In this way, the three-dimensional moving component can drive the rotary drive component to move the scribing and pressing assembly in three dimensions in space, while the rotary drive component drives the scribing and pressing assembly to rotate to adjust the position of the pressing wheel relative to the scribing blade.

[0044] The scratching and pressing assembly 22 described in the above technical solution also includes a fine-tuning telescopic component 223. The fine-tuning telescopic component 223 is installed on the driving end of the rotary drive component, with the telescopic end of the fine-tuning telescopic component 223 facing downwards. The scratching blade 221 is installed at the telescopic end of the fine-tuning telescopic component 223 with its blade facing downwards. The wheel seat of the pressing wheel 222 is connected to the fine-tuning telescopic component 223. In this way, the fine-tuning telescopic component can finely adjust the vertical position of the scratching blade to ensure that the blade of the scratching blade only acts on the heat transfer film and does not contact the metal surface of the metal plate structure.

[0045] The fine-tuning telescopic component 223 in the above technical solution includes a cylinder 2231, a rod 2232, a spring 2233, an electromagnetic component 2234, and an electromagnetic worktable 2235. The electromagnetic worktable 2235 is horizontally installed in the scribing area 11 of the support platform 1, and the rolling component 13 of the scribing area 11 is located around the electromagnetic worktable 2235. The cylinder 2231 is vertically arranged, and the rod 2232 is vertically arranged in the middle of the cylinder 2231, with both ends penetrating the cylinder 2231 and extending out of the cylinder 2231 (the rod can also move up and down relative to the cylinder). A retaining ring 2236 is provided on the rod 2232 inside the cylinder 2231. The spring 2233 is placed inside the cylinder 2231 and sleeved on the rod 2232, and is located above the retaining ring 2236. The scribing knife 221 is installed... The electromagnetic component 2234 is mounted on the lower end of the rod 2232 and located below the cylinder 2231. The driving end of the rotary drive and the wheel seat of the pressure roller 222 are both connected to the cylinder 2231. The cylinder 2231 is made of a non-magnetic material. The electromagnetic worktable 2235 and the end of the electromagnetic component with the same magnetic pole are close to each other. The magnetic force of the electromagnetic worktable 2235 tends to drive the electromagnetic component 2234 to drive the rod 2232 and the scratching knife 221 to move upward against the elastic force of the spring 2233. Thus, the spring applies a downward force to the rod, while the electromagnetic worktable applies an upward force to the rod through the electromagnetic component. By adjusting the magnetic force of the electromagnetic worktable and / or the magnetic force of the electromagnetic component, the vertical position of the rod can be finely adjusted, thereby adjusting the position of the scratching knife.

[0046] When the electromagnetic worktable and electromagnetic components are not powered, the rod body is pressed against the bottom wall of the cylinder by the retaining ring under the action of the spring, and the lower end of the scratching knife is flush with the lower end of the pressure roller.

[0047] When the electromagnetic worktable and electromagnetic components are energized, the electromagnetic worktable drives the electromagnetic components to move the rod slightly upward, creating a height difference between the lower end of the scratching blade and the lower end of the pressure roller. This height difference is less than the depth of the groove (the lower end of the pressure roller presses into the groove, while the lower end of the scratching blade scratches the heat transfer film at the groove opening). The scratching blade is preferably a conical component (its cone tip points downward and forms the cutting edge of the scratching blade). The function of the rotary drive component is to rotate the scratching and pressure roller assembly. This ensures that when the scratching and pressure roller assembly moves horizontally, the pressure roller is always behind the scratching blade's movement trajectory, i.e., scratching occurs first, and then the pressure roller presses the heat transfer film down until it adheres to the groove wall.

[0048] In this embodiment, the support platform and the scratch-pressing assembly (all components except the spring and the pressing wheel) can be made of non-magnetic materials, such as aluminum alloy, while the spring is made of steel, the pressing wheel can be made of silicone, the electromagnetic component is an electromagnet located at the lower end of the rod, the size of the electromagnetic worktable is slightly smaller than the size of the metal plate structure, and when the electromagnetic worktable is energized, it can magnetically attract the metal plate structure to position it.

[0049] Preferably, the upper end of the cylinder can be thickened so that when the rod moves up and down to its maximum stroke, the upper end of the rod is always located inside the top wall of the cylinder (the upper end of the cylinder is coaxially fixedly connected to the driving end of the rotary drive component, and the rod and the cylinder can also be coaxially distributed).

[0050] When the electromagnetic component is energized (provided that the electromagnetic worktable is not energized), the force exerted by its magnetic force on the four-degree-of-freedom moving component must be less than the elastic force of the spring. At this time, the force can be ignored (it is insufficient to overcome the elastic force of the spring and compress the spring to contract).

[0051] Example 2

[0052] This embodiment provides a heat transfer method for metal plate structural components, which uses the heat transfer device for paint texture of metal plate structural components as described in Embodiment 1, and includes the following steps:

[0053] Step 1: Apply heat transfer film evenly to both sides of the metal plate structural component 4 beforehand;

[0054] Step 2: Place the metal plate structural component 4 processed in Step 1 horizontally on the support platform 1 in the scribing area 11, and position the metal plate structural component 4 in the scribing area 11.

[0055] Step 3: The scratching and pressing mechanism 2 scratches open the heat transfer film at the groove on the metal plate structural component 4 and presses it to fit the groove wall;

[0056] Step 4: Push the metal plate structure 4 to the heating zone 12 and position it (positioning is done by the staff using measuring rulers and other tools to ensure that the four corners of the metal plate structure are in the scratched area). The heating mechanism 3 heats the upper end of the metal plate structure 4. After the heat transfer film on the metal plate structure 4 is heated, the heating is stopped.

[0057] Step 5: Remove the metal plate structure 4 from the support platform 1, flip it over, and repeat steps 1-4 to process the heat transfer film on the other side of the metal plate structure 4. After the heat transfer film on both sides of the metal plate structure 4 is completed, remove the metal plate structure 4 from the support platform 1. This method is simple to operate, highly automated, and efficient.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A heat transfer device for paint texture on metal plate structural parts, characterized in that, The assembly includes a support platform (1), a scratching and pressing mechanism (2), and a heating mechanism (3). The upper end of the support platform (1) is divided into a scratching area (11) and a heating area (12) along the front-back direction. The scratching and pressing mechanism (2) and the heating mechanism (3) are both suspended above the support platform (1), with the scratching and pressing mechanism (2) located directly above the scratching area (11) and the heating mechanism (3) located directly above the heating area (12). A metal plate structure (4) with a transfer film is placed horizontally on the support platform (1). First, the scratching and pressing mechanism (2) scratches and presses the transfer film on the groove of the metal plate structure (4) in the scratching area (11) until it adheres to the groove wall. Then, the metal plate structure (4) is transferred to the heating area (12), and the heating mechanism (3) heats the transfer film on the metal plate structure (4) to make the transfer film adhere to the groove wall. The pattern on the metal plate structure (4) is transferred to the metal plate structure (4); the scratching and pressing mechanism (2) includes a four-degree-of-freedom moving part (21) and a scratching and pressing assembly (22). The four-degree-of-freedom moving part (21) is suspended directly above the scratching area (11) with its driving end facing downward. The scratching and pressing assembly (22) is mounted on the driving end of the four-degree-of-freedom moving part (21). The scratching and pressing assembly (22) has a scratching blade (221) and The pressure roller (222) and the blade of the scratching knife (221) face downwards. The four-degree-of-freedom moving member (21) is used to drive the scratching and pressing assembly (22) to move in three dimensions and rotate horizontally in the scratching area (11) so that the scratching knife (221) can cut open the transfer film at the groove on the metal plate structure (4), and the pressure roller (222) can press the transfer film at the groove down to the exhaust and adhere to the groove wall.

2. The heat transfer device for paint texture on metal plate structural parts according to claim 1, characterized in that, The upper end of the support platform (1) is equipped with rolling elements (13) evenly spaced in both the sizing area (11) and the heating area (12), and the upper end of the rolling elements (13) protrudes from the upper end of the support platform (1).

3. The heat transfer device for paint texture on metal plate structural parts according to claim 1, characterized in that, The heating mechanism (3) includes a top plate (31), a telescopic member (32), and a heating plate (33). The top plate (31) is a square plate that is horizontally suspended above the heating area (12). The top plate (31) is connected to the upper edge of the support platform (1) through multiple first support legs (34). The heating plate (33) is horizontally placed between the heating area (12) and the top plate (31). The telescopic member (32) is installed on the top plate (31) with its telescopic end facing down and connected to the heating plate (33). The heat radiation surface of the heating plate (33) faces down to heat the upper end of the metal plate structure (4) of the heating area (12). The telescopic member (32) is used to adjust the distance between the heating plate (33) and the metal plate structure (4).

4. The heat transfer device for paint texture on metal plate structural parts according to claim 3, characterized in that, There are four telescopic components (32). The four telescopic components (32) are respectively installed in the middle of the lower end of the top plate (31) and are distributed in a rectangular shape. The telescopic end of each telescopic component (32) is connected to the upper end of the heating plate (33) in a transmission connection. The four telescopic components (32) extend or retract synchronously to drive the heating plate (33) to move downward or upward.

5. The heat transfer device for paint texture on metal plate structural parts according to claim 4, characterized in that, The telescopic component (32) is a hydraulic cylinder, a telescopic air cylinder, or a telescopic electric cylinder.

6. The heat transfer apparatus for paint texture of metal plate structural parts according to any one of claims 1 to 5, characterized in that, The four-degree-of-freedom moving part (21) includes a three-dimensional moving part and a rotary driving part. The lower edge of the three-dimensional moving part is connected to the edge of the scribing area (11) through multiple second support legs (23). The driving end of the three-dimensional moving part (211) faces downward. The rotary driving part is installed on the driving end of the three-dimensional moving part. The driving end of the rotary driving part faces downward and is connected to the scribing and pressing assembly (22) in a transmission connection.

7. The heat transfer device for paint texture on metal plate structural parts according to claim 6, characterized in that, The scratching and pressing assembly (22) also includes a fine-tuning telescopic component (223), which is installed on the driving end of the rotary drive component. The telescopic end of the fine-tuning and pressing component (223) faces downward. The scratching blade (221) is installed at the telescopic end of the fine-tuning and pressing component (223) with its blade facing downward. The wheel seat of the pressing wheel (222) is connected to the fine-tuning and pressing component (223).

8. The heat transfer device for paint texture on metal plate structural parts according to claim 7, characterized in that, The fine-tuning telescopic component (223) includes a cylinder (2231), a rod (2232), a spring (2233), an electromagnetic component (2234), and an electromagnetic worktable (2235). The electromagnetic worktable (2235) is horizontally installed in the scribing area (11) of the support platform (1), and the rolling element (13) of the scribing area (11) is located at the periphery of the electromagnetic worktable (2235). The cylinder (2231) is vertically arranged, and the rod (2232) is vertically arranged in the middle of the cylinder (2231), with both ends penetrating the cylinder (2231) and extending out of the cylinder (2231). A retaining ring (2236) is provided on the rod (2232) inside the cylinder (2231). The spring (2233) is placed in the cylinder (2231). 31) The inner sleeve is placed on the rod (2232) and located above the retaining ring (2236). The scratching knife (221) is installed at the lower end of the rod (2232). The electromagnetic component (2234) is installed on the rod (2232) and located below the cylinder (2231). The driving end of the rotary drive and the wheel seat of the pressure roller (222) are both connected to the cylinder (2231). The cylinder (2231) is a non-magnetic component. The electromagnetic worktable (2235) and the end with the same magnetic pole of the electromagnetic component are close to each other. The magnetic force of the electromagnetic worktable (2235) tends to drive the electromagnetic component (2234) to drive the rod (2232) and the scratching knife (221) to move upward against the elastic force of the spring (2233).

9. A method for heat transfer printing on metal plate structural components, characterized in that, The metal plate structural component paint texture heat transfer printing device as described in any one of claims 1-8 is used for processing, including the following steps: Step 1: Apply heat transfer film evenly to both sides of the metal plate structural component (4) beforehand; Step 2: Place the metal plate structure (4) processed in Step 1 horizontally on the support platform (1) in the scribing area (11), and position the metal plate structure (4) in the scribing area (11); Step 3: The scratching and pressing mechanism (2) scratches open the heat transfer film at the groove on the metal plate structure (4) and presses it to fit the groove wall; Step 4: Push the metal plate structure (4) to the heating zone (12) and position it. The heating mechanism (3) heats the upper end of the metal plate structure (4). After the heat transfer film on the metal plate structure (4) is heated, stop heating. Step 5: Remove the metal plate structure (4) from the support platform (1), flip it over, and repeat steps 1-4 to process the heat transfer film on the other side of the metal plate structure (4). After the heat transfer film on both sides of the metal plate structure (4) is transferred, remove the metal plate structure (4) from the support platform (1).

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