Concave surface heat transfer printing machine

Abstract

The utility model relates to the technical field of heat transfer printing, and discloses a concave surface heat transfer printing machine which comprises a machine frame arranged on the ground, a heat transfer printing component arranged on the machine frame and a film frame arranged on the machine frame, the film frame comprises a film collecting component and a film releasing component, and the film collecting component and the film releasing component are both arranged on the machine frame. The heat transfer printing component is located between the film collecting component and the film releasing component, and heat transfer printing films are arranged on the film collecting component and the film releasing component. The adjustable placing table is arranged on the rack, is positioned below the heat transfer printing component and is used for placing the concave surface heat transfer printing component; and the printing film tightness adjusting piece is arranged on the rack, is connected with the thermal transfer printing film and is used for adhering the thermal transfer printing film to the surface of the concave surface thermal transfer printing component when the thermal transfer printing component moves downwards. According to the concave surface heat transfer printing machine, the problems of tensile deformation and wrinkles caused by improper tightness of a printing film in traditional equipment are effectively solved, and the appearance quality and the market competitiveness of a transfer printing product are further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal transfer, in particular to a concave thermal transfer machine. Background Art

[0002] With the continuous development of industrial production, thermal transfer technology, as an efficient and environmentally friendly pattern printing method, has been widely used in all walks of life, especially in the fields of personalized customization, decoration manufacturing and consumer product packaging. It has shown great potential. Traditional thermal transfer machines are mainly suitable for pattern transfer of flat or simple curved objects. However, with the increasingly diversified market demand today, the demand for high-quality thermal transfer of products with complex concave structures (such as automotive interiors, sports equipment accessories, personalized tableware, etc.) is growing. Therefore, it is particularly important to develop a device that can efficiently and accurately complete the concave thermal transfer task. This equipment can not only meet the market's demand for personalized and customized product appearance, but also significantly improve production efficiency and reduce production costs. It is an important development direction in the field of thermal transfer technology.

[0003] There are many types of thermal transfer machines on the market, but most of them focus on applications on flat or simple curved surfaces. When facing products with complex concave structures, their performance is significantly limited. Due to the non-planarity of its surface shape, concave thermal transfer puts higher requirements on the lamination process of the printed film, and more precise control and adjustment must be achieved to ensure the complete reproduction and clear presentation of the pattern. However, when processing concave thermal transfer, traditional thermal transfer machines often use a fixed printing film transmission mechanism, which causes the printed film to always remain taut and lacks dynamic adaptability according to the specific shape and size changes of the concave workpiece. This design limitation makes the printed film susceptible to uneven stretching or wrinkles in the concave area during the thermal transfer process, especially in areas where the curve changes sharply. The problem is more serious. Uneven stretching will not only cause pattern deformation, but may also affect color consistency; and the appearance of wrinkles directly destroys the continuity of the pattern, further exacerbating the risk of color distortion. The two work together to seriously reduce the appearance quality of the transferred product, thereby affecting its market competitiveness and value. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] The utility model aims to effectively avoid the stretching deformation and wrinkle problems caused by improper tightness of the printing film in traditional equipment, further improve the appearance quality and market competitiveness of the transfer product, and proposes a concave heat transfer machine.

[0006] (II) Technical solution

[0007] The technical solution of the utility model to solve the above technical problems is as follows:

[0008] A concave heat transfer machine comprises a frame placed on the ground and a heat transfer component arranged on the frame.

[0009] A film frame is arranged on the frame, wherein the film frame comprises a film collecting component and a film placing component, both of which are arranged on the frame, and a thermal transfer component is located between the film collecting component and the film placing component, and thermal transfer printing films are arranged on the film collecting component and the film placing component;

[0010] An adjustable placement table is arranged on the frame and located below the thermal transfer component, and is used to place the concave thermal transfer component;

[0011] The printing film tension adjusting member is arranged on the frame and connected with the thermal transfer printing film. It is used to stick the thermal transfer printing film to the surface of the concave thermal transfer component when the thermal transfer component moves downward to complete the thermal transfer of the concave thermal transfer component.

[0012] On the basis of the above technical solution, the present invention can also be improved as follows.

[0013] Furthermore, the adjustable placement table includes:

[0014] A vertical adjustment member is arranged on the frame;

[0015] a transverse adjustment member, disposed on the movable end of the vertical adjustment member; and

[0016] The placement plate is arranged on the movable end of the transverse adjustment member, and the position of the placement plate can be adjusted under the driving of the vertical adjustment member and the transverse adjustment member to adapt to the thermal transfer component.

[0017] Furthermore, the vertical adjustment member includes:

[0018] The base plate is fixedly mounted on the frame and is vertically distributed as a whole;

[0019] The threaded seat is fixedly mounted on a side surface of the base plate away from the frame, and is perpendicular to the base plate;

[0020] A threaded rod, threadedly connected to the inner side of the threaded seat;

[0021] A handle fixedly mounted on one end of the threaded rod; and

[0022] The lifting rod is fixedly installed at the axis center of the surface of the side of the handle away from the threaded rod, and can move synchronously with the displacement of the handle.

[0023] Furthermore, the lateral adjustment member includes:

[0024] The base is connected to the other end of the jacking rod through a bearing;

[0025] A transverse sliding seat is fixedly mounted on a side surface of the base away from the jacking rod;

[0026] A sliding member, slidably connected to the inner side of the transverse sliding seat and fixedly connected to the placement plate on the other side surface, wherein the sliding member can slide and move transversely along the length of the transverse sliding seat;

[0027] A connecting plate fixedly mounted on the surface of the transverse sliding seat; and

[0028] The limiting screw is threadedly connected to the connecting plate, and one end portion thereof abuts against the sliding member to limit and fix the position of the sliding member.

[0029] Furthermore, the printing film tension adjusting member comprises:

[0030] Two cross bars are respectively fixedly installed on the surfaces of the film collecting component and the film placing component;

[0031] The mounting seat is fixedly mounted on the surface of the crossbar and is arranged perpendicular to the crossbar;

[0032] An electric push rod is fixedly mounted on the surface of the mounting base, with its output end facing a side away from the mounting base; and

[0033] The film supporting member is fixedly mounted on the output end of the electric push rod and is interconnected with the thermal transfer printing film. The film supporting member can be driven by the electric push rod to tighten or loosen the thermal transfer printing film to adapt to the thermal transfer of the thermal transfer component.

[0034] Furthermore, the film supporting member includes:

[0035] The first movable seat is fixedly mounted on the output end of the electric push rod;

[0036] A low support rod is fixedly mounted on the surface of the first movable seat and is vertically arranged with the first movable seat;

[0037] A second movable seat is fixedly mounted on a side surface of the first movable seat and can be displaced synchronously with the movement of the first movable seat; and

[0038] The high support rod is fixedly mounted on the surface of the second movable seat and is vertically arranged with the second movable seat. There is a certain gap between the low support rod and the high support rod, and the thermal transfer printing film can pass through the gap.

[0039] Furthermore, a limit pile is fixedly installed on one side surface of the cross bar, and a sliding hole matched with the limit pile is opened on the surface of the second movable seat, wherein the limit pile is located on the inner side of the sliding hole.

[0040] Furthermore, two limiting rings are fixedly installed on the outside of the low support rod, wherein the distance between the two limiting rings is adapted to the width of the thermal transfer printing film.

[0041] (III) Beneficial effects

[0042] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0043] By setting up the synergistic effect of the film collecting component and the film releasing component, the smooth transmission of the printed film during the thermal transfer process is ensured, the generation of stretching deformation and wrinkles is reduced, thereby improving the integrity and clarity of the transfer pattern. Secondly, the setting of the adjustable placement table is specially designed for concave thermal transfer components. This platform not only firmly supports the workpiece, but also allows fine-tuning according to the specific shape and size of the workpiece to ensure the precise alignment between the thermal transfer component and the concave workpiece. This high degree of flexibility and adaptability enables this equipment to meet the thermal transfer needs of various complex concave structures, greatly improving production efficiency and transfer quality. Finally, the introduction of the printing film tension adjustment part can adjust the tightness of the printing film in real time according to the shape change of the concave workpiece when the thermal transfer component moves down, ensuring that the printing film can fit tightly and evenly on the surface of the concave workpiece. This dynamic adjustment mechanism effectively avoids the stretching deformation and wrinkle problems caused by improper tightness of the printing film in traditional equipment, further improving the appearance quality and market competitiveness of the transfer product. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 This is a schematic diagram of the front view connection structure of the utility model;

[0045] Figure 2 This is a schematic diagram of the overall connection structure of the utility model;

[0046] Figure 3 This is a schematic diagram of the connection structure between the vertical adjustment member and the horizontal adjustment member of the utility model;

[0047] Figure 4 This is a schematic diagram of the connection structure between the transverse adjustment member and the placement plate of the utility model;

[0048] Figure 5 This is a schematic diagram of the connection structure between the film placing component and the printing film tension adjusting component of the utility model;

[0049] Figure 6 This is a schematic diagram of the connection structure between the film-releasing component and the crossbar of the utility model;

[0050] Figure 7 It is a schematic diagram of the connection structure of the membrane supporting member of the utility model.

[0051] In the figure: 1. frame; 2. thermal transfer component; 3. film frame; 31. film collecting component; 32. film placing component; 4. adjustable placement table; 41. vertical adjustment member; 411. base plate; 412. threaded seat; 413. threaded rod; 414. handle; 415. lifting rod; 42. horizontal adjustment member; 421. base; 422. horizontal sliding seat; 423. sliding member; 424. connecting plate; 425. limiting screw; 43. placement plate; 5. printing film tension adjustment member; 51. cross bar; 52. mounting seat; 53. electric push rod; 54. film supporting member; 541. first movable seat; 542. low support rod; 543. second movable seat; 544. high support rod; 6. limit ring. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0053] Combination Figure 1-Figure 7 As shown, a concave heat transfer machine of the utility model comprises a frame 1 placed on the ground, and a heat transfer component 2 arranged on the frame 1.

[0054] The film frame 3 is arranged on the frame 1, wherein the film frame 3 includes a film collecting component 31 and a film placing component 32, both of which are arranged on the frame 1, and the thermal transfer component 2 is located between the film collecting component 31 and the film placing component 32, and the film collecting component 31 and the film placing component 32 are provided with thermal transfer printing films;

[0055] An adjustable placement table 4 is arranged on the frame 1 and is located below the thermal transfer component 2, and is used for placing the concave thermal transfer component;

[0056] The printing film tension adjusting member 5 is arranged on the frame 1 and connected with the thermal transfer printing film. It is used to stick the thermal transfer printing film to the surface of the concave thermal transfer component when the thermal transfer component 2 moves downward to complete the thermal transfer of the concave thermal transfer component.

[0057] The concave thermal transfer machine is installed as a whole on a frame 1 on the ground, providing a stable support foundation for the whole equipment. A thermal transfer component 2 is arranged on the frame 1, which is the core component for performing thermal transfer action. A film rack 3 is also designed, and the film rack 3 includes a film collecting component 31 and a film placing component 32, both of which are firmly installed on the frame 1 and are located on both sides of the thermal transfer component 2 to form a channel for transmitting thermal transfer printing film. Thermal transfer printing films are pre-installed on the film collecting component 31 and the film placing component 32. These printing films will be selected and prepared according to the needs of concave thermal transfer. When concave thermal transfer is required, the concave thermal transfer component to be transferred is first placed on the adjustable placement table 4. The placement table is designed with an adjustment mechanism, which can be fine-tuned according to the shape and size of the concave workpiece to ensure that the workpiece maintains a stable position during the thermal transfer process. The placement table is located below the thermal transfer component 2, which provides accurate workpiece positioning for the thermal transfer process. As the thermal transfer operation begins, the thermal transfer Driven by the control system, the printing component 2 moves downward along a preset trajectory. At this time, the printing film tension adjustment part 5 begins to play a role. It is closely connected with the thermal transfer printing film. According to the downward movement speed of the thermal transfer component 2 and the shape change of the concave workpiece, the tightness of the printing film is adjusted in real time. This dynamic adjustment process ensures that the printing film can fit tightly and evenly on the surface of the concave workpiece, avoiding the stretching deformation and wrinkling problems caused by improper tightness of the printing film. When the thermal transfer component 2 contacts the concave workpiece and applies appropriate pressure and temperature, the pattern on the thermal transfer printing film will be accurately transferred to the surface of the workpiece. After the transfer is completed, the thermal transfer component 2 returns to its initial position, and the film collecting component 31 and the film releasing component 32 continue to work together to prepare a new printing film for the next thermal transfer operation. Through the above working principle, the concave thermal transfer machine realizes high-quality and high-efficiency thermal transfer of products with complex concave structures, meeting the market demand for personalized and customized product appearance.

[0058] In a preferred embodiment, the present invention can be further configured as follows: Figures 1 to 7 As shown; the adjustable placement table 4 includes:

[0059] A vertical adjustment member 41 is provided on the frame 1;

[0060] A transverse adjustment member 42 is disposed on the moving end of the vertical adjustment member 41; and

[0061] The placement plate 43 is arranged on the movable end of the transverse adjustment member 42. The position of the placement plate 43 can be adjusted under the drive of the vertical adjustment member 41 and the transverse adjustment member 42 to adapt to the thermal transfer component 2. The vertical adjustment member 41 is arranged on the frame 1 as the vertical adjustment basis of the entire placement table. By controlling the vertical adjustment member 41, the position of the placement plate 43 can be adjusted in the vertical direction. Secondly, the transverse adjustment member 42 is arranged on the movable end of the vertical adjustment member 41, that is, after the vertical adjustment member 41 completes the vertical position adjustment, the transverse adjustment member 42 is responsible for further fine-tuning in the horizontal direction. The transverse adjustment member 42 A precise mechanical transmission mechanism is also used to ensure accurate control of the position of the placement plate 43. Finally, the placement plate 43 is arranged on the movable end of the lateral adjustment member 42. It is a component that directly contacts and supports the concave workpiece. Under the joint action of the vertical adjustment member 41 and the lateral adjustment member 42, the placement plate 43 can be flexibly adjusted in position in three-dimensional space to adapt to concave thermal transfer components of different shapes and sizes. This high flexibility and adaptability enables the equipment to cope with the transfer needs of various complex concave workpieces, ensuring that the thermal transfer component 2 can accurately and stably contact the workpiece, thereby achieving high-quality transfer effects.

[0062] In a preferred embodiment, the present invention can be further configured as follows: Figures 1 to 7 As shown; the vertical adjustment member 41 comprises:

[0063] The base plate 411 is fixedly mounted on the frame 1 and is vertically distributed as a whole;

[0064] The threaded seat 412 is fixedly mounted on a side surface of the base plate 411 away from the frame 1, and is perpendicular to the base plate 411;

[0065] A threaded rod 413, threadedly connected to the inner side of the threaded seat 412;

[0066] A handle 414 is fixedly mounted on one end of the threaded rod 413; and

[0067] The lifting rod 415 is fixedly installed on the axis of the side surface of the handle 414 away from the threaded rod 413, and can move synchronously with the displacement of the handle 414. The vertical adjustment member 41 is mainly composed of a base plate 411, a threaded seat 412, a threaded rod 413, a handle 414 and a lifting rod 415. They cooperate with each other to realize the vertical adjustment function. The base plate 411 is fixedly installed on the frame 1 as the basic component of the vertical adjustment member 41. The base plate 411 is vertically distributed as a whole. The base plate 411 not only provides a stable support for other components, but also ensures the linearity and stability of the vertical adjustment. Then, the threaded seat 412 is fixedly installed on the side surface of the base plate 411 away from the frame 1, and is perpendicular to the base plate 411. The threaded seat 412 is provided with a thread inside for threaded connection with the threaded rod 413, thereby realizing the conversion of rotation into The function of linear motion, the threaded rod 413 is connected to the inner side of the threaded seat 412 through a thread, and its rotational motion will be converted into linear motion along the axial direction of the threaded seat 412. This design allows the threaded rod 413 to move up and down accurately under control. In order to facilitate the control of the rotation of the threaded rod 413, the handle 414 is fixedly installed on one side end of the threaded rod 413. The user can drive the threaded rod 413 to rotate in the threaded seat 412 by rotating the handle 414, thereby realizing vertical adjustment. Finally, the lifting rod 415 is fixedly installed on the axis of the surface of the side of the handle 414 away from the threaded rod 413. Its design allows the lifting rod 415 to move synchronously with the displacement of the handle 414 and the threaded rod 413. During the vertical adjustment process, the placement plate 43 is driven to be adjusted vertically by its up and down movement to adapt to concave thermal transfer components of different heights.

[0068] In a preferred embodiment, the present invention can be further configured as follows: Figures 1 to 7 As shown; the lateral adjustment member 42 comprises:

[0069] The base 421 is connected to the other end of the lifting rod 415 through a bearing;

[0070] A transverse sliding seat 422 is fixedly mounted on a side surface of the base 421 away from the lifting rod 415;

[0071] The sliding member 423 is slidably connected to the inner side of the transverse sliding seat 422 and the other side surface is fixedly connected to the placement plate 43, wherein the sliding member 423 can slide and move transversely along the length of the transverse sliding seat 422;

[0072] A connecting plate 424 is fixedly mounted on the surface of the transverse sliding seat 422; and

[0073] The limiting screw 425 is threadedly connected to the connecting plate 424, and one end thereof abuts against the sliding member 423 to limit and fix the position of the sliding member 423. The transverse adjustment member 42 is mainly composed of a base 421, a transverse sliding seat 422, a sliding member 423, a connecting plate 424 and a limiting screw 425, which work together to realize the transverse adjustment function. The base 421 is connected to the other end of the lifting rod 415 through a bearing. This design enables the transverse adjustment member 42 to move synchronously with the vertical movement of the lifting rod 415, thereby ensuring that the reference point of the transverse adjustment remains consistent during the vertical adjustment process. Then, the transverse sliding seat 422 is fixedly installed on the side surface of the base 421 away from the lifting rod 415, which provides a stable and smooth sliding track for The sliding member 423 moves laterally, and the sliding member 423 is slidably connected to the inner side of the transverse sliding seat 422, and its other side surface is fixedly connected to the placement plate 43. This design enables the sliding member 423 to slide laterally along the length direction of the transverse sliding seat 422, thereby driving the placement plate 43 to be adjusted laterally. In order to control the sliding position of the sliding member 423, the connecting plate 424 is fixedly installed on the surface of the transverse sliding seat 422, and the limiting screw 425 is threadedly connected to the connecting plate 424, and one side end thereof abuts against the sliding member 423. When it is necessary to fix the position of the sliding member 423, it is only necessary to rotate the limiting screw 425 so that its end is tightly abutted against the sliding member 423, so as to lock the sliding member 423 and thereby fix the transverse position of the placement plate 43.

[0074] In a preferred embodiment, the present invention can be further configured as follows: Figures 1 to 7 As shown; the printing film tension adjusting member 5 comprises:

[0075] Two cross bars 51 are respectively fixedly mounted on the surfaces of the film collecting component 31 and the film placing component 32;

[0076] The mounting seat 52 is fixedly mounted on the surface of the cross bar 51 and is perpendicular to the cross bar 51;

[0077] An electric push rod 53 is fixedly mounted on the surface of the mounting seat 52, with its output end facing a side away from the mounting seat 52; and

[0078] The film supporting member 54 is fixedly mounted on the output end of the electric push rod 53 and is interconnected with the thermal transfer printing film. It can tighten or relax the thermal transfer printing film under the drive of the electric push rod 53 to adapt to the thermal transfer of the thermal transfer component 2. The printing film tension adjustment member 5 is mainly composed of a cross bar 51, a mounting seat 52, an electric push rod 53 and a film supporting member 54, which cooperate with each other to achieve precise adjustment of the tension of the thermal transfer printing film. First, the cross bar 51 is used as a supporting and fixing basic component, and there are two of them, which are fixedly mounted on the surfaces of the film collecting component 31 and the film releasing component 32 respectively. The two cross bars 51 are respectively located on both sides of the thermal transfer printing film transmission path, providing a stable installation foundation for subsequent adjustment components. Then, the mounting seat 52 is fixedly mounted on the surface of the cross bar 51 and is arranged perpendicular to the cross bar 51. The design of the mounting seat 52 enables the electric push rod 53 to be installed at a suitable angle and position so as to effectively tension the thermal transfer printing film Adjustment, the electric push rod 53 is fixedly mounted on the surface of the mounting seat 52 as a driving component, and its output end is facing the side away from the mounting seat 52, that is, toward the direction of the thermal transfer printing film. The electric push rod 53 can switch between the extension and contraction states by receiving the control signal, thereby realizing precise control of the position of the film support member 54. Finally, the film support member 54 is fixedly mounted on the output end of the electric push rod 53 and is interconnected with the thermal transfer printing film. The design of the film support member 54 enables it to move with the extension and contraction of the electric push rod 53, thereby applying a tightening or relaxing force to the thermal transfer printing film. During the thermal transfer process, when the thermal transfer component 2 descends and contacts the concave workpiece, the electric push rod 53 will be shortened accordingly, so that the film support member 54 no longer drives the thermal transfer printing film to tighten, so as to ensure that the printing film can fit tightly to the surface of the workpiece; and when the thermal transfer is completed, the electric push rod 53 will extend, so that the film support member 54 tightens the thermal transfer printing film, so as to facilitate the subsequent film collection and release operations.

[0079] In a preferred embodiment, the present invention can be further configured as follows: Figures 1 to 7 As shown; the film support member 54 comprises:

[0080] The first movable seat 541 is fixedly mounted on the output end of the electric push rod 53;

[0081] The low support rod 542 is fixedly mounted on the surface of the first movable seat 541 and is perpendicular to the first movable seat 541;

[0082] The second movable seat 543 is fixedly mounted on the side surface of the first movable seat 541 and can be displaced synchronously with the movement of the first movable seat 541; and

[0083] The high support rod 544 is fixedly mounted on the surface of the second movable seat 543, and is perpendicular to the second movable seat 543. There is a certain gap between the low support rod 542 and the high support rod 544, and the thermal transfer printing film can pass through the gap. The film support member 54 is mainly composed of the first movable seat 541, the low support rod 542, the second movable seat 543 and the high support rod 544. They cooperate with each other to form an adjustable film support structure. First, the first movable seat 541 is fixedly mounted on the electric push rod as the basic component of the film support member 54. 53, as the electric push rod 53 is extended and retracted, the first movable seat 541 will move accordingly, thereby driving the entire film support member 54 to adjust its position. Then, the low support rod 542 is fixedly installed on the surface of the first movable seat 541 and is arranged perpendicular to the first movable seat 541. The main function of the low support rod 542 is to provide a stable support point for supporting the lower part of the thermal transfer printing film to prevent it from sagging or shaking during the transmission process. The second movable seat 543 is fixedly installed on the side surface of the first movable seat 541. Its design makes the first movable seat 543 The second movable seat 543 can be displaced synchronously with the movement of the first movable seat 541. This design ensures that the relative position relationship between the low support rod 542 and the high support rod 544 remains unchanged when the film support member 54 moves. The high support rod 544 is fixedly installed on the surface of the second movable seat 543 and is perpendicular to the second movable seat 543. The high support rod 544 is located above the low support rod 542 and has a certain gap between it and the low support rod 542. This gap is specially designed for thermal transfer printing film. The printing film can pass through this gap and be held by the low support rod. The rod 542 and the high support rod 544 jointly support and tighten. During the thermal transfer process, when the electric push rod 53 is extended, the first movable seat 541 and the second movable seat 543 will move upward synchronously, thereby applying a tightening force to the thermal transfer printing film passing through. On the contrary, when the electric push rod 53 is shortened, the first movable seat 541 and the second movable seat 543 will move downward synchronously to relax the tension on the printing film. In this way, the film support member 54 can achieve precise adjustment of the tension of the thermal transfer printing film to meet the transfer requirements of different thermal transfer components 2 and concave workpieces.

[0084] In a preferred embodiment, the present invention can be further configured as follows: Figures 1 to 7As shown; a limit pile is fixedly installed on the surface of one side of the cross bar 51, and a sliding hole adapted to the limit pile is opened on the surface of the second movable seat 543, wherein the limit pile is located on the inner side of the sliding hole. Firstly, the cross bar 51 is a basic component for support and guidance, and its stability is crucial to the performance of the entire printing film tension adjustment member 5. A limit pile is fixedly installed on the surface of one side of the cross bar 51, and these limit piles provide precise guidance and limitation for the sliding of the second movable seat 543. Then, the second movable seat 543 is a key component in the film support member 54, and a sliding hole adapted to the limit pile is opened on its surface. The shape, size and position of these sliding holes are They have been carefully designed to ensure that they can slide tightly with the limit piles. When the second movable seat 543 is displaced synchronously with the movement of the first movable seat 541, the sliding hole will slide smoothly along the surface of the limit pile, ensuring the stability and linearity of the second movable seat 543 during movement, avoiding problems such as uneven tension or damage to the printed film due to offset or shaking. Secondly, the cooperation between the limit piles and the sliding holes limits the moving range of the second movable seat 543, thereby preventing excessive movement or derailment. Finally, this design also simplifies the structure of the film support member 54, reduces the difficulty of manufacturing and assembly, and improves the overall reliability and durability.

[0085] In a preferred embodiment, the present invention can be further configured as follows: Figures 1 to 7 As shown; two limit rings 6 are fixedly installed on the outside of the low support rod 542, and the distance between the two limit rings 6 is adapted to the width of the thermal transfer printing film. The low support rod 542 is a key supporting component in the film support member 54. Its design must not only take into account the supporting function for the printing film, but also the precise control of the position of the printing film. For this reason, two limit rings 6 are fixedly installed on the outside of the low support rod 542. The positions and spacings of the two limit rings 6 are carefully calculated and designed to ensure that they can closely match the width of the thermal transfer printing film. Specifically, the distance between the two limit rings 6 is set to match the width of the thermal transfer printing film. This means that when the printing film passes over the low support rod 542, its two side edges will be just limited by the two limit rings 6, thereby avoiding lateral displacement or shaking of the printing film during transmission. This limiting effect not only ensures the stability of the printing film during the thermal transfer process, but also improves the accuracy and consistency of the transfer.

[0086] The specific working principle of the concave heat transfer machine of the utility model is as follows:

[0087] When the concave thermal transfer machine is working, first ensure that the frame 1 is firmly placed on the ground, and the thermal transfer component 2 installed thereon is located between the film collecting component 31 and the film placing component 32, forming a complete thermal transfer working environment. The film collecting component 31 and the film placing component 32 are components of the film frame 3, and the thermal transfer printing film laid thereon is the medium of the thermal transfer process. Before starting the thermal transfer, according to the specific size and shape of the concave thermal transfer component to be transferred, the position of the placement plate 43 is accurately adjusted through the adjustable placement table 4. This process involves the coordinated work of the vertical adjustment member 41 and the lateral adjustment member 42. The operator drives the threaded rod 413 to rotate in the threaded seat 412 by rotating the handle 414, thereby realizing the up and down movement of the lifting rod 415, that is, vertical adjustment; then, by adjusting the position of the limiting screw 425 on the connecting plate 424, the fixing of the sliding member 423 is loosened, so that the sliding member 423 can slide freely on the lateral sliding seat 422, and the purpose of lateral adjustment is achieved, until the placement plate 43 is adjusted to the optimal position, and the limiting screw 425 is tightened again to fix the position. After adjusting the placement plate 43, prepare for the thermal transfer operation. At this time, the printing film tension adjustment member 5 begins to play a role. The two cross bars 51 are respectively fixed on the film receiving component 31 and the film placing component 32 to provide support for subsequent adjustments. The mounting seat 52 is installed perpendicular to the cross bar 51, and the electric push rod 53 fixed thereon serves as a power source, and drives the movement of the film supporting member 54 through the expansion and contraction of its output end. As the electric push rod 53 extends, the first movable seat 541 drives the low support rod 542, the second movable seat 543 and the high support rod 544 to move downward synchronously. In this process, the gap between the low support rod 542 and the high support rod 544 tightens the thermal transfer printing film to ensure that it is tightly attached to the concave thermal transfer component to be transferred. In particular, the two limiting rings 6 outside the low support rod 542 limit the width of the thermal transfer printing film to prevent it from shifting or shaking during the transmission process. At the same time, when the second movable seat 543 moves with the first movable seat 541, the sliding holes on its surface slide along the limiting piles on the cross bar 51, ensuring the stability and accuracy of the entire film support member 54 during the movement.

[0088] When the thermal transfer process starts, the thermal transfer member 2 first slowly descends, and its initial contact point falls precisely on the thermal transfer film. As the thermal transfer member 2 continues to move downward, a carefully designed linkage mechanism is activated: the electric push rod 53 begins to shorten its output end under the command of the control system. This action is transmitted through the film support member 54 installed on the output end of the electric push rod 53. The film support member 54 includes a low support rod 542 and a high support rod 544. The gap between them is originally close to the thermal transfer printing film. At this time, the electric push rod 53 is pressed against the film support member 54. Under the push of the rod 53, further tension is applied to the thermal transfer printing film, so that it is closely attached to the surface of the concave thermal transfer component to be transferred. When the thermal transfer component 2 slowly descends, it first gently contacts the thermal transfer film to prepare for the next thermal transfer process. As the thermal transfer component 2 continues to move downward, the electric push rod 53 begins to shorten the length of its output end. This action is transmitted through the film support member 54, so that the thermal transfer film originally tightened by the low support rod 542 and the high support rod 544 is more closely attached to the surface of the workpiece. During this process, the limiting ring 6 outside the low support rod 542 ensures the stability of the thermal transfer film in the width direction, prevents deviation, and ensures the accuracy of transfer. Once the thermal transfer film is in close contact with the surface of the workpiece, the thermal transfer process officially begins. The pattern or text is transferred from the thermal transfer film to the workpiece through the heat and pressure released by the thermal transfer component 2. After the thermal transfer is completed, the system starts the automatic control again, and the electric push rod 53 extends in the opposite direction, driving the film support member 54 to rise as a whole, thereby releasing the thermal transfer film. The tensioning force separates the film from the workpiece, preparing for the next thermal transfer cycle. The entire thermal transfer process, from the descent of the thermal transfer component, the tension and bonding of the thermal transfer film, the execution of the thermal transfer process, to the final release and rise of the film, is achieved through the precise coordination and highly automated control of the internal components of the concave thermal transfer machine, ensuring the efficient and accurate transfer of the concave thermal transfer component. This design not only improves production efficiency, but also ensures transfer quality, meeting the dual needs of precision and efficiency in modern industrial production.

[0089] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0090] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A concave heat transfer machine, comprising a frame (1) placed on the ground, and a heat transfer component (2) arranged on the frame (1), characterized in that: A film frame (3) is arranged on the frame (1), wherein the film frame (3) comprises a film collecting component (31) and a film placing component (32), both of which are arranged on the frame (1), and a thermal transfer component (2) is located between the film collecting component (31) and the film placing component (32), and thermal transfer printing films are arranged on the film collecting component (31) and the film placing component (32); An adjustable placement table (4) is arranged on the frame (1) and is located below the thermal transfer component (2), and is used to place the concave thermal transfer component; The printing film tension adjusting member (5) is arranged on the frame (1) and is interconnected with the thermal transfer printing film. It is used to attach the thermal transfer printing film to the surface of the concave thermal transfer component when the thermal transfer component (2) moves downward, so as to complete the thermal transfer of the concave thermal transfer component.

2. A concave heat transfer machine according to claim 1, characterized in that: The adjustable placement table (4) comprises: A vertical adjustment member (41) is arranged on the frame (1); A transverse adjustment member (42) is disposed on the movable end of the vertical adjustment member (41); and The placement plate (43) is arranged on the movable end of the transverse adjustment member (42). The position of the placement plate (43) can be adjusted under the drive of the vertical adjustment member (41) and the transverse adjustment member (42) to adapt to the thermal transfer component (2).

3. A concave heat transfer machine according to claim 2, characterized in that: The vertical adjustment member (41) comprises: The base plate (411) is fixedly mounted on the frame (1) and is vertically distributed as a whole; The threaded seat (412) is fixedly mounted on a side surface of the base plate (411) away from the frame (1), and is arranged perpendicular to the base plate (411); A threaded rod (413) threadedly connected to the inner side of the threaded seat (412); A handle (414) is fixedly mounted on one end of the threaded rod (413); and The lifting rod (415) is fixedly mounted on the axis center of the surface of one side of the handle (414) away from the threaded rod (413), and can move synchronously with the displacement of the handle (414).

4. A concave heat transfer machine according to claim 3, characterized in that: The lateral adjustment member (42) comprises: The base (421) is connected to the other end of the lifting rod (415) through a bearing; A transverse sliding seat (422) is fixedly mounted on a side surface of the base (421) away from the lifting rod (415); A sliding member (423) is slidably connected to the inner side of the transverse sliding seat (422) and the other side surface is fixedly connected to the placement plate (43), wherein the sliding member (423) can slide and displace transversely along the length of the transverse sliding seat (422); A connecting plate (424) fixedly mounted on the surface of the transverse sliding seat (422); and The limiting screw rod (425) is threadedly connected to the connecting plate (424), and one end portion thereof abuts against the sliding member (423) to limit and fix the position of the sliding member (423).

5. The concave heat transfer machine according to claim 1, characterized in that: The printing film tension adjusting member (5) comprises: Two cross bars (51) are respectively fixedly mounted on the surfaces of the film collecting component (31) and the film placing component (32); A mounting seat (52) is fixedly mounted on the surface of the crossbar (51) and is arranged perpendicular to the crossbar (51); An electric push rod (53) is fixedly mounted on the surface of the mounting seat (52), with its output end facing a side away from the mounting seat (52); and The film support member (54) is fixedly mounted on the output end of the electric push rod (53) and is interconnected with the thermal transfer printing film. The film support member (54) can be driven by the electric push rod (53) to tighten or loosen the thermal transfer printing film to adapt to the thermal transfer of the thermal transfer component (2).

6. A concave heat transfer machine according to claim 5, characterized in that: The film supporting member (54) comprises: A first movable seat (541) is fixedly mounted on the output end of the electric push rod (53); A low support rod (542) is fixedly mounted on the surface of the first movable seat (541) and is vertically disposed with respect to the first movable seat (541); The second movable seat (543) is fixedly mounted on the side surface of the first movable seat (541) and can be displaced synchronously with the movement of the first movable seat (541); and The high support rod (544) is fixedly mounted on the surface of the second movable seat (543) and is vertically arranged with respect to the second movable seat (543). There is a certain gap between the low support rod (542) and the high support rod (544), and the thermal transfer printing film can pass through the gap.

7. A concave heat transfer machine according to claim 6, characterized in that: A limit pile is fixedly mounted on one side surface of the cross bar (51), and a sliding hole matching the limit pile is opened on the surface of the second movable seat (543), wherein the limit pile is located inside the sliding hole.

8. A concave heat transfer machine according to claim 7, characterized in that: Two limiting rings (6) are fixedly mounted on the outside of the low support rod (542), wherein the distance between the two limiting rings (6) is adapted to the width of the thermal transfer printing film.

Images