Dual-power heat transfer printing machine
By combining dual motors and optimizing control logic, the heat transfer machine solves the problems of laborious operation, insufficient pressure, and unreasonable structure of existing equipment, achieving efficient and stable transfer results and wide adaptability, making it suitable for female users and personalized customization needs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- YIWUSHI TAILE MECHANICAL EQUIP CO LTD
- Filing Date
- 2026-02-02
- Publication Date
- 2026-04-28
AI Technical Summary
Existing heat transfer machines suffer from problems such as cumbersome and laborious operation, insufficient pressure, unstable transfer effect, high energy consumption, loud noise, short motor life and unreasonable structural design, making it difficult to meet the needs of female users and personalized customization.
The system employs a dual-motor combined drive system, including an idle motor and a booster motor, combined with a parallelogram orientation mechanism and a three-point locking mechanism, to achieve efficient and precise pressure control and self-locking stability. It optimizes motor selection and control logic, reduces energy consumption, and improves equipment adaptability.
It achieves low power consumption, high pressure, and fully automatic transfer printing, adapts to products of different thicknesses, reduces equipment and transportation costs, improves the equipment's versatility and functional expandability, and solves the problems of head warping and poor adaptability to power grid environments.
Smart Images
Figure CN121928853A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of heat transfer printing machine technology, and in particular to a dual-power heat transfer printing machine. Background Technology
[0002] Heat transfer printing, as a highly efficient pattern transfer process, is widely used for surface decoration of various materials such as ceramics, metals, and fabrics. It is mainly divided into two categories: sublimation heat transfer printing and patterned film heat transfer printing. The former achieves pattern penetration through the sublimation properties of disperse dyes, while the latter completes pattern adhesion by utilizing the thermal melting effect of the adhesive layer of the heat transfer film. Both rely on the core process conditions of heating and pressurization, which places high demands on the pressure stability, ease of operation, and adaptability of the equipment.
[0003] Currently, heat transfer equipment on the market is mainly divided into two categories: manual and electric. Although manual heat transfer machines can achieve pressure output of over 375KG through mechanical structure, their operation relies on manual drive, requiring high physical strength from operators. Furthermore, the equipment is cumbersome and labor-intensive, making it difficult to meet the needs of an increasingly female user group and personalized production scenarios. With the market's increasing demand for automation, electric heat transfer machines are gradually emerging. However, limited by the pricing system of older equipment in the industry, new models need to strictly control costs, resulting in limited motor selection. Existing electric equipment mostly uses 24V DC motors, with a maximum load current of 7.5A, requiring a high-current switching power supply. This not only results in high control costs and loud operating noise, but also generally insufficient pressure output due to limitations in power and torque, leading to poor stability of the transfer effect.
[0004] Existing electric equipment suffers from several structural defects. First, its power transmission efficiency is low. Most systems use a screw-driven direct-drive force point structure, which increases screw friction resistance with higher pressure, leading to high motor energy loss, rapid component wear, and susceptibility to stalling, thus shortening its lifespan. Second, the lever arm design is unreasonable, with the cantilever swinging around the fulcrum at an angle of up to 20 degrees, resulting in a power arm to resistance arm ratio of only 1.2, making it difficult to amplify pressure. Third, it lacks reliable self-locking capability, relying on the internal meshing resistance of the motor reduction head for braking at pressure peaks. This can easily cause the screw to retract and pressure to be lost due to back thrust, affecting transfer quality. Fourth, there is a functional contradiction. The heating plate needs to complete an opening and closing stroke of ≥50mm within 6-9 seconds to ensure efficiency and operational safety, but the low-power motor's torque is increased by deceleration, which reduces the speed, leading to a contradiction between stroke and efficiency. At the same time, the traditional three-point locking structure requires manual adjustment to adapt to products of different thicknesses, conflicting with automation requirements and severely impacting user experience.
[0005] Manual heat transfer machines mostly use the lever principle to apply pressure. Although they can easily reach the pressure requirement of 375KG and are suitable for a transfer area of 38cm×38cm, meeting industrial-grade transfer standards, these machines are cumbersome and laborious to operate, requiring a high level of physical strength from the operators.
[0006] Existing electric heat transfer machines generally suffer from the fatal flaw of insufficient pressure. For a standard transfer area of 38cm×38cm, most products have a pressure of less than 90KG, and even the best-performing products can only reach 220KG, which is far from the 375KG standard required for stable transfer. At the same time, the lack of pressure will directly lead to extremely unstable transfer results, which not only reduces the bonding strength between the pattern and the substrate, but also easily causes problems such as color banding and blurry patterns, which seriously restricts the application expansion of electric heat transfer machines in the field of personalized customization.
[0007] In addition, existing equipment pressure control mostly relies on fuzzy current regulation, which is greatly affected by power grid fluctuations and cannot meet the precise pressure requirements of special products such as foaming products, which require around 175KG. In order to ensure the vertical lifting of the heating plate, some models extend the machine head to the center of the heating plate, resulting in unbalanced force and the machine head tilting upwards, further aggravating the problem of uneven pressure.
[0008] Based on existing technologies, a dual-power heat transfer machine is proposed to solve the above-mentioned technical problems and achieve the goals of low power consumption, high pressure, full automation, and wide compatibility of heat transfer equipment. Summary of the Invention
[0009] The purpose of this invention is to solve the aforementioned technical problems by providing a dual-power heat transfer machine. This invention addresses the issues of existing manual heat transfer machines, which are cumbersome and laborious to operate, demanding high physical strength from operators and unsuitable for the increasingly female-dominated home user group. Existing electric heat transfer machines suffer from cost constraints, limited motor selection leading to insufficient pressure and highly unstable transfer results. They also exhibit drawbacks such as high energy consumption, high noise levels, and short motor and screw lifespans. Similar products rely on current fuzzy adjustment for pressure control, resulting in low precision and unsuitability for transfer scenarios requiring specific pressure, such as foaming processes. Furthermore, they have poor adaptability to power grid environments, some have unreasonable structural designs, and the heating plate lifting mechanism is prone to warping. Additionally, the machines occupy a large space, leading to high transportation costs. This invention also addresses the issue of expanding the functionality of existing equipment. To address the issue of weak performance and difficulty in meeting diverse user customization needs, innovative methods such as optimizing motor selection, upgrading the three-point locking mechanism and converting it to motor drive, dual-motor collaborative working mode, incorporating a parallelogram orientation mechanism and a concealed structure have been implemented. These methods control equipment costs and energy consumption while easily achieving a pressure of 500KG, far exceeding standard requirements. This results in precise pressure control and self-locking stability, adapting to different types of transfer products, improving the intelligence and efficiency of equipment operation, and enabling independent adaptation to products of different thicknesses. It also shortens opening and closing time, enhances structural stability and spatial adaptability, solves the problem of machine head tilting and reduces transportation costs, improves environmental adaptability and functional expandability, is compatible with harsh power grid environments, and can be customized with high-frequency vibration functionality.
[0010] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: a dual-power heat transfer machine, comprising a dual motor unit, a positioning mechanism, a three-point locking mechanism, a worktable, a heating plate, and a control system. The dual motor unit is the power source of the equipment, including an idle motor responsible for the rapid start and stop of the heating plate and a booster motor for high-voltage output. The idle motor is fixedly installed on the positioning mechanism, and its power output end is connected to the heating plate to drive the heating plate to open and close rapidly. The booster motor is fixedly installed on the top of the heating plate, and its power output direction is consistent with the pressure direction of the heating plate. The three-point locking mechanism is fixedly installed in the rear area of the worktable, and its power input end is hinged to the rear end of the positioning mechanism. The control system is integrated and installed on the protective shell of the equipment outside the positioning mechanism, and is electrically connected to the idle motor, the booster motor, and the three-point locking mechanism respectively through wires.
[0011] Preferably, the positioning mechanism includes a parallelogram orientation mechanism for ensuring the parallel lifting and lowering of the heating plate and a connecting rod for synchronous transmission; the positioning mechanism is symmetrically arranged with two sets of parallelogram orientation mechanisms along the width direction of the equipment, and the corresponding nodes of the two sets of parallelogram orientation mechanisms are hinged to the two ends of the connecting rod respectively, so that the two sets of orientation mechanisms form a rigid whole that moves synchronously, ensuring that the heating plate remains horizontal during the lifting and lowering process.
[0012] Preferably, the three-point locking mechanism includes a locking link for force transmission and a locking gear for transmission; the top end of the locking link is hinged to the rear section of the positioning mechanism, and its bottom is integrally formed with teeth, which mesh with the locking gear to form a gear transmission pair; the central shaft of the locking gear is fixedly connected to a motor located on the outside, and the motor directly drives the locking gear to rotate, thereby driving the locking link to rise and fall for adjustment.
[0013] Preferably, the locking link is a three-section force transmission structure, including a first positioning link, a second transmission link, a third locking link, and a fourth transmission suspension; the two ends of the second transmission link are respectively hinged to the lower end of the first positioning link and the upper end of the third locking link to form a finely adjustable force transmission mechanism; the lower side of the third locking link has teeth adapted to the locking gear; the upper end of the first positioning link is hinged and fixed to the rear end of the fourth transmission suspension; the front end of the fourth transmission suspension is connected to the positioning mechanism; and a lever fulcrum is provided on the fourth transmission suspension.
[0014] Preferably, the transmission ratio between the locking gear and the bottom teeth of the third locking link is 1:3, the transmission ratio between the second transmission link and the first positioning link is 1:2, and the transmission ratio of the fourth transmission suspension before and after the lever fulcrum is 1:1.5.
[0015] Preferably, the three-point locking mechanism further includes a power reversing gear, a lever arm amplifying cantilever, a rear micro switch for stroke detection, and a front micro switch; the lower end of the cantilever is connected to the top center of the heating plate, and its upper end is fixed coaxially with the gear; a driving gear is fixed on the power output shaft of the idle motor, which meshes with the gear on the cantilever to realize the transmission of power from the motor to the cantilever; the rear micro switch and the front micro switch are both fixedly installed on the cantilever, with the rear micro switch installed on the rear side of the cantilever and the front micro switch installed on the front side of the cantilever. The detection end of the rear micro switch faces the bottom end face of the idle motor, and the detection end of the front micro switch faces the top end face of the heating plate, used to detect the lifting stroke of the heating plate and feed it back to the control system.
[0016] Preferably, the cantilever includes a core force-transmitting screw and a force-balancing guide post; the screw is coaxially disposed in the middle of the cantilever, and its lower end is threadedly connected to the top of the heating plate; the two guide posts are symmetrically distributed on both sides of the screw, and their two ends are respectively hinged to the body of the cantilever and the top of the heating plate; the circular teeth are fixedly sleeved on the upper end of the screw and form a meshing transmission with the drive circular teeth of the idle motor;
[0017] The cantilever and the top of the heating plate have a travel distance that is consistent with the opening and closing distance of the front micro switch. This is used to trigger the front micro switch when the heating plate presses the product. After the heating plate is retracted, the front micro switch is automatically disconnected due to the cantilever rising and the heating plate descending under its own weight.
[0018] Preferably, the control system includes a core control circuit, a human-machine interface display screen, and touch input buttons; the control circuit is electrically connected to the display screen and touch buttons respectively to realize parameter display and command input; the control circuit is also electrically connected to the idle motor, booster motor, front micro switch and rear micro switch respectively through control wires to form a complete control closed loop.
[0019] Preferably, the worktable includes a guiding sliding rail, a transmission belt, a set of sliding wheels, and a drive motor. The sliding rail is fixedly installed on one side of the bottom of the worktable in the front-to-back direction for limiting and guiding the movement of the worktable. The worktable is slidably fixed to the sliding rail via pulleys at the bottom, and its fixed end is connected to the equipment frame. The transmission belt is installed on the other side of the bottom of the worktable in the front-to-back direction. The set of sliding wheels is installed on the rear side of the transmission belt and includes three fixed wheels and one synchronous wheel. The three fixed wheels are installed on both sides of the synchronous wheel, two of which mesh with the synchronous wheel, and the other fixed wheel is located at the tail end. The transmission belt passes through the middle part where the fixed wheels and the synchronous wheel mesh. The drive motor is installed above the synchronous wheel to drive the synchronous wheel to rotate. The synchronous wheel drives the transmission belt and the fixed wheels to rotate, causing the worktable surface to be pulled back and forth along the sliding rail for picking up and placing products to be transferred. The drive motor is controlled by a control circuit.
[0020] The working method applied to the heat transfer machine includes the following steps:
[0021] Step 1: After powering on and starting the equipment, the control system will automatically initialize. Select the transfer process and set the corresponding parameters using the touch buttons. The parameters will be displayed on the screen in real time.
[0022] Step 2: The control circuit controls the drive motor to work. The drive motor makes the synchronous pulley rotate and drives the transmission belt to push the worktable outward along the sliding guide rail. Place the product to be transferred in the center of the worktable, cover it with transfer paper or heat transfer film, and then the drive motor reverses to push the worktable back into position, so that the worktable and the heating plate are precisely aligned.
[0023] Step 3: Start the equipment. The control system controls the idle motor to work. The idle motor drives the cantilever to swing and lower the upper heating plate by meshing with the cantilever teeth. The parallelogram orientation mechanism ensures that the upper heating plate descends horizontally through synchronous linkage with the linkage, completing a 50mm stroke within 6-7 seconds.
[0024] Step 4: When the heating plate touches the product or workbench, the front micro switch is triggered and sends a signal to the control system. The control system stops the idle motor and starts the booster motor. Through the four-stage power amplification of the three-point locking mechanism, the locking link and screw are linked, so that the heating plate is subjected to a preset high pressure and self-locked by the three-point locking mechanism.
[0025] Step 5: After the pressure is increased and locked, the heating plate starts heating. The control system monitors and dynamically fine-tunes the pressure and temperature parameters in real time through the control circuit.
[0026] Step Six: After the preset transfer time ends, the control system controls the booster motor to run in reverse to unlock, and the idle motor to work in reverse to drive the heating plate to rise and reset. After the heating plate is fully raised, the micro switch closes, the idle motor stops, and the pull-out worktable completes the part removal.
[0027] The beneficial effects of this invention are:
[0028] 1. This invention achieves dual optimization of cost and energy consumption by optimizing motor selection and control logic. It uses a 220V / 110V booster motor (40W, 2.5rpm) and a no-load motor (6-10W, 50rpm), with a load current of only 63mA and a stall current of 105mA, eliminating the need for a high-current switching power supply. Compared to similar products using a 24V DC motor (maximum load current 7.5A), control costs are significantly reduced. Simultaneously, the motor has low power consumption and high energy efficiency. In no-load mode, the screw only pushes the heating plate; in boost mode, it remains stationary to reduce frictional resistance. This avoids the high energy loss and rapid wear problems caused by the screw pushing the pressurization process throughout the process, as seen in similar products. Furthermore, the low-power motor operates without noise, significantly reducing stall frequency. Combined with reduced screw wear, the service life of the motor and screw is significantly extended compared to similar products, further reducing subsequent maintenance costs for users.
[0029] 2. Addressing the pain point of insufficient pressure in similar electric heat transfer machines, this invention, on the one hand, adopts the market-proven three-point locking principle and upgrades it to motor drive. Combined with the optimization of the cantilever movement space by the idle motor, the swing angle is reduced from 20 degrees in similar products to 5 degrees, increasing the ratio of power arm to resistance arm from only 1.2 in similar products to 1.55. Furthermore, through motor deceleration, the cooperation of circular and sector gears, the cooperation of the three-point structure force arm, and the extension of the cantilever power arm, the power is amplified four times, ultimately enabling the resistance point pressure to easily reach 500KG, far exceeding the standard requirement of 375KG, thus solving the problem of unstable transfer effect. On the other hand, the pressure control method relies on the three-point self-locking structure to adjust the pressure by controlling the swing angle of the cantilever. The error is small and it is not affected by the current. It can not only meet the high pressure requirements of most products, but also accurately control the transfer pressure of foamed patterns at about 175KG to avoid excessive foaming and shedding. Compared with the fuzzy control of similar products that rely on current, the pressure stability and adaptability are significantly improved.
[0030] 3. This invention optimizes the operation process and efficiency through dual-motor collaboration and sensor linkage. The idle motor has a high speed, completing a 50mm stroke in just 6-7 seconds to achieve rapid closure of the heating plate, solving the problem of low opening and closing efficiency in similar products. At the same time, the idle motor and the booster motor work together efficiently. When the heating plate is not in contact with the workpiece, the idle motor drives it quickly, only needing to overcome its own weight, with low torque requirements. After contact, the micro switch automatically triggers the idle motor to stop and the booster motor to start, achieving a seamless connection between rapid opening and closing and precise boosting. This effectively resolves the problem between the opening and closing time and distance of the heating plate and the output speed of the booster motor. For transfer products of different thicknesses, the equipment can automatically identify and switch motors through limit sensors, eliminating the need for manual parameter adjustment, greatly reducing the operating threshold, and making it especially suitable for home users, mainly women, thus improving the universality of the equipment.
[0031] 4. Structurally, this invention adopts a parallelogram principle orientation mechanism, and with the cantilever fulcrum moved back closer to the machine body and away from the center of the heating plate, it ensures that the heating plate is always parallel to the worktable during the lifting and lowering process, and shortens the force arm of the machine head. This solves the problem of the machine head tilting when the heating plate is pressed down due to the offset of the force point in similar products, and improves the structural stability of the transfer process.
[0032] 5. This invention provides stable and controllable force at the locking point during pressure control, ensuring normal operation even in harsh power grid environments, demonstrating stronger power grid adaptability compared to similar DC motor drive equipment. In terms of core functionality, the sandwich heating plate, referencing flexible heating plates, improves heating uniformity and heat transfer efficiency; simultaneously, it reserves space for functional expansion, allowing for customization of the high-frequency vibration motor function to adapt to more transfer scenarios based on customer needs. Stable basic performance and on-demand functional expansion not only meet the core requirements of personalized heat transfer but also address the customized needs of different industries and products, broadening the equipment's application scope. Attached Figure Description
[0033] Figure 1 This is a schematic diagram of the overall structure of the present invention;
[0034] Figure 2 This is a schematic diagram of the overall structure of the present invention during pressing;
[0035] Figure 3 This is a schematic diagram of the internal structure of the present invention. Figure 1 ;
[0036] Figure 4 This is a schematic diagram of the internal structure of the present invention. Figure 2 ;
[0037] Figure 5 This is a schematic diagram of the internal structure of the present invention. Figure 3 ;
[0038] Figure 6 This is a schematic diagram of the internal structure of the present invention. Figure 4 ;
[0039] Figure 7 This is a schematic diagram of the connection between the cantilever and the heating plate of the present invention;
[0040] Figure 8 This is a structural schematic diagram of the contact position between the cantilever and the upper surface of the present invention;
[0041] Figure 9 This is a schematic diagram of the worktable of the present invention.
[0042] In the diagram: 1. Dual motor unit; 11. Idle motor; 12. Boost motor; 2. Positioning structure; 21. Parallelogram orientation mechanism; 22. Linkage rod; 3. Three-point locking mechanism; 31. Locking link; 311. First positioning link; 312. Second transmission link; 313. Third locking link; 314. Fourth transmission suspension rod; 32. Locking gear; 34. Circular gear; 35. Cantilever; 351. Screw; 352. Guide post; 36. Rear micro switch; 37. Front micro switch; 4. Worktable; 41. Sliding guide rail; 42. Transmission belt; 43. Sliding wheel group; 44. Drive motor; 5. Heating plate; 6. Control system; 61. Control circuit; 62. Display screen; 63. Touch button. Detailed Implementation
[0043] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0044] like Figure 1-9 As shown, the present invention discloses a dual-power heat transfer machine, comprising a dual-motor unit 1, a positioning mechanism 2, a three-point locking mechanism 3, a worktable 4, a heating plate 5, and a control system 6. The dual-motor unit 1 is the power source of the equipment, including an idle motor 11 responsible for the rapid start and stop of the heating plate and a booster motor 12 for high-pressure output. The idle motor 11 is fixedly installed on the positioning mechanism 2, and its power output end is connected to the heating plate 5 to drive the heating plate 5 to open and close rapidly. The booster motor 12 is fixedly installed on the top of the heating plate 5, and its power output direction is consistent with the pressure direction of the heating plate 5. The three-point locking mechanism 3 is fixedly installed in the rear area of the worktable 4, and its power input end is hinged to the rear end of the positioning mechanism 2. The control system 6 is integrated on the protective shell of the equipment outside the positioning mechanism 2, and is electrically connected to the idle motor 11, the booster motor 12, and the three-point locking mechanism 3 through wires.
[0045] The dual-motor division of labor precisely solves the problems of inability to open and close quickly and high voltage output. The idle motor 11, with its high speed, enables the heating plate to complete a 50mm stroke opening and closing in 6-7 seconds, only overcoming the weight of the heating plate itself, thus ensuring operational efficiency and safety. The booster motor 12, with its low speed and three-point locking mechanism 3, achieves high voltage output. The low-power configuration does not require a high-power switching power supply. Compared with similar 24V DC motors, the control cost is reduced and the operating energy consumption is reduced.
[0046] The booster motor 12 is installed on the top of the heating plate 5 with the power direction consistent with the pressure direction, resulting in the shortest force transmission path and the lowest power loss. Combined with the articulated force transmission of the three-point locking mechanism 3 and the positioning mechanism 2, it achieves a maximum pressure output of 500KG, far exceeding the industry's 375KG process requirement, and the pressure output is stable, solving the problems of insufficient pressure and unstable transfer effect of electric equipment. The booster motor 12 can generate vibration after being pressed into place. The vibration can enhance the transfer ability of the pattern under heating and improve the transfer effect.
[0047] The control system is integrated and forms an electrical connection control closed loop, ensuring precise synchronization of actions such as motor switching, pressure regulation, and mechanism locking, avoiding human operation errors, and is suitable for female users and novice operators, thus lowering the barrier to entry for using the equipment.
[0048] The positioning mechanism 2 includes a parallelogram orientation mechanism 21 for ensuring the parallel lifting and lowering of the heating plate and a connecting rod 22 for synchronous transmission. The positioning mechanism 2 is symmetrically arranged with two sets of parallelogram orientation mechanisms 21 along the width direction of the equipment. The corresponding nodes of the two sets of parallelogram orientation mechanisms 21 are hinged to the two ends of the connecting rod 22 respectively, so that the two sets of orientation mechanisms form a rigid whole that moves synchronously, ensuring that the heating plate 5 remains horizontal during the lifting and lowering process.
[0049] The geometric characteristics of the parallelogram mechanism ensure that the heating plate 5 remains parallel to the worktable 4 during the lifting and lowering process, solving the problems of force imbalance and head tilting caused by the extension of the printing head to the center of the heating plate. This reduces the pressure error at each point on the transfer surface and improves the pressure uniformity compared to traditional models, effectively avoiding defects such as local blurring of patterns and insufficient adhesion.
[0050] Two sets of parallelogram orientation mechanisms 21 are linked synchronously through connecting rods 22 to form a symmetrical force structure, which disperses the lateral stress when the heating plate 5 outputs high pressure and avoids deformation or damage to the positioning mechanism 2; at the same time, the rigid connection design ensures that the mechanism moves without jamming and improves the stability of equipment operation.
[0051] The three-point locking mechanism 3 includes a locking link 31 for force transmission and a locking gear 32 for transmission; the top end of the locking link 31 is hinged to the rear end of the positioning mechanism 2, and its bottom is integrally formed with teeth, which mesh with the locking gear 32 to form a gear transmission pair; the central shaft of the locking gear 32 is fixedly connected to a motor located on the outside, and the locking gear 32 is directly driven to rotate by the motor, thereby driving the locking link 31 to rise and fall for adjustment.
[0052] Compared to traditional screw drives, gear meshing significantly reduces power loss, ensuring precise lifting and lowering of the locking linkage 31 during adjustment. It can be used for initial position calibration of equipment, fine-tuning of pressure thresholds, or to cope with emergency scenarios such as sudden power outages, thereby improving equipment adaptability and reliability.
[0053] The rigid structure of the gear transmission enables stable positioning of the locking link 31. Combined with the self-locking characteristic of the three-point locking mechanism 3, it effectively resists the back thrust during high-pressure transfer, preventing pressure loss due to the retraction of the locking link 31 and ensuring constant pressure during the transfer process. The locking link 31 is a three-section force transmission structure, including a first positioning link 311, a second transmission link 312, a third locking link 313, and a fourth transmission suspension 314. The two ends of the second transmission link 312 are respectively hinged to the lower end of the first positioning link 311 and the upper end of the third locking link 313 to form a fine-tunable force transmission mechanism. The lower side of the third locking link 313 has teeth that are adapted to the locking gear 32. The upper end of the first positioning link 311 is hinged and fixed to the rear end of the fourth transmission suspension 314. The front end of the fourth transmission suspension 314 is connected to the positioning mechanism, and a lever fulcrum is provided on the fourth transmission suspension 314.
[0054] The transmission ratio between the locking gear 32 and the bottom teeth of the third locking link 313 is 1:3, the transmission ratio between the second transmission link 312 and the first positioning link 311 is 1:2, and the transmission ratio between the fourth transmission suspension 314 before and after the lever fulcrum is 1:1.5.
[0055] The three-section hinge structure not only has a certain degree of flexible adjustment capability, but also a controllable locking effect.
[0056] The three-point locking mechanism 3 also includes a power reversing gear 34, a lever arm amplifying cantilever 35, a stroke detection rear micro switch 36, and a front micro switch 37. The lower end of the cantilever 35 is connected to the top center of the heating plate 5, and its upper end is coaxially fixed with the gear 34. A drive gear is fixed on the power output shaft of the idle motor 11, which meshes with the gear 34 on the cantilever 35 to realize the transmission of power from the motor to the cantilever 35. The rear micro switch 36 and the front micro switch 37 are both fixedly installed on the cantilever 35. The rear micro switch 36 is installed on the rear side of the cantilever 35, and the front micro switch 37 is installed on the front side of the cantilever 35. The detection end of the rear micro switch 36 faces the bottom end face of the idle motor 11, and the detection end of the front micro switch 36 faces the top end face of the heating plate 5. The micro switches are used to detect the lifting stroke of the heating plate 5 and feed it back to the control system 6.
[0057] The meshing transmission of the circular gear 34 can achieve precise conversion of power direction, ensuring that the rotational power of the idle motor 11 is smoothly converted into the swinging power of the cantilever 35, driving the heating plate 5 to rise and fall at a uniform speed, avoiding tilting or shaking of the heating plate 5. Compared with belt drive, the transmission accuracy is improved.
[0058] The front micro switch 37 and the rear micro switch 36 detect the heating plate's 5-stroke movement in real time, enabling fully automatic adaptation of products with different thicknesses. This eliminates the need for manual adjustment of the thickness knob, improving operational efficiency and solving the problem of manually adjusting the thickness in the traditional three-point locking structure.
[0059] The cantilever 35 includes a core force-transmitting screw 351 and a force-balancing guide post 352; the screw 351 is coaxially arranged in the middle of the cantilever 35, and its lower end is threadedly connected to the top of the heating plate 5; two guide posts 352 are symmetrically distributed on both sides of the screw 351, and their two ends are respectively hinged to the body of the cantilever 35 and the top of the heating plate 5; the circular teeth 34 are fixedly sleeved on the upper end of the screw 351, and form a meshing transmission with the drive circular teeth of the idle motor 11.
[0060] The symmetrically distributed guide posts 352 can balance the lateral torque generated when the screw 351 transmits force, avoid bending and deformation of the screw 351 or eccentric tilting of the heating plate 5, and ensure that the heating plate 5 is subjected to uniform force when high voltage is output.
[0061] The threaded connection between the screw 351 and the heating plate 5 enhances the stability of the fixation, allowing it to withstand 500KG of high pressure without loosening. Combined with the hinged buffer of the guide post 352, it further improves the overall load-bearing capacity of the cantilever 35.
[0062] The circular tooth 34 is coaxially fixed with the screw 351, and the power is directly transmitted to the screw 351, reducing intermediate transmission links, minimizing power loss, and improving the energy utilization rate of the motor.
[0063] The cantilever 35 has a travel distance at the top of the heating plate 5, which is consistent with the opening and closing distance of the front micro switch 37. This travel distance is used to trigger the front micro switch 37 when the heating plate 5 presses the product. After the heating plate 5 is retracted, the front micro switch 37 is automatically disconnected due to the rise of the cantilever 35 and the descent of the heating plate 5 under its own weight. Figure 8 As shown, a resistance block is provided on the upper surface of the cantilever 35. When not in use, the resistance block does not contact the upper surface due to the weight of the heating plate 5. The resistance block is a gear-shaped block with an arc groove. The top of the resistance block retains burrs during laser cutting. When the idle motor 11 reverses and the cantilever touches the upper surface with the resistance block, friction is generated to counteract the thrust generated when the motor decelerates, preventing damage to the deceleration head. At the same time, a limit screw is fixed on the upper surface. The nut of the limit screw protrudes outward and engages with the arc groove of the resistance block, further increasing the friction and resistance of the resistance block and preventing the resistance block from loosening and rotating.
[0064] The control system 6 includes a core control circuit 61, a human-machine interface display screen 62, and operation input touch buttons 63. The control circuit 61 is electrically connected to the display screen 62 and the touch buttons 63 to realize parameter display and command input. The control circuit 61 is also electrically connected to the idle motor 11, the booster motor 12, the front micro switch 37, and the rear micro switch 36 through control wires to form a complete control closed loop.
[0065] The closed-loop control enables fully automated operation of the equipment. Users can set pressure parameters, transfer time, and temperature parameters via touch button 63. The display screen 62 shows the equipment's operating status in real time. The operation is convenient and requires no professional skills.
[0066] Integrated design reduces circuit redundancy, lowers the probability of circuit failure, facilitates inspection and maintenance, and improves the overall reliability of the equipment.
[0067] The workbench 4 includes a guide sliding rail 41, a transmission belt 42, a set of sliding wheels 43, and a drive motor 44. The sliding rail 41 is fixedly installed on one side of the bottom of the workbench 4 in the front-back direction for limiting and guiding the movement of the workbench 4. The workbench 4 is slidably fixed to the sliding rail 41 by pulleys at the bottom, and its fixed end is connected to the equipment frame. The transmission belt 42 is installed on the other side of the bottom of the workbench 4 in the front-back direction. The set of sliding wheels 43 is installed on the rear side of the transmission belt 42 and includes three fixed wheels and one synchronous wheel. The three fixed wheels are installed on both sides of the synchronous wheel, two of which mesh with the synchronous wheel, and the other fixed wheel is located at the tail end. The transmission belt 42 passes through the middle part where the fixed wheels and the synchronous wheel mesh. The drive motor 44 is installed above the synchronous wheel to drive the synchronous wheel to rotate. The synchronous wheel drives the transmission belt 42 and the fixed wheels to rotate, causing the workbench 4 to be pulled back and forth along the track of the sliding rail 41 for picking up and placing products to be transferred. The drive motor 44 is connected and controlled by the control circuit 61.
[0068] When the present invention is in operation, the power is first turned on to start the equipment and the control system 6 is automatically initialized; the transfer process is selected by touch button 63 and the corresponding parameters are set. The parameters are displayed on the display screen 62 in real time for easy viewing and calibration.
[0069] The control circuit 61 controls the drive motor 44 to work. The drive motor 44 makes the synchronous pulley rotate and drives the transmission belt 42 to move and push the worktable 4 outward along the sliding guide rail 41. The product to be transferred is placed in the center of the worktable 4. After covering it with transfer paper or heat transfer film, the drive motor 44 reverses to push the worktable 4 back into position, so that the worktable 4 is precisely aligned with the heating plate 5.
[0070] When the equipment is started, the control system 6 issues a command, and the idle motor 11 starts working. Through the meshing of the drive gear and the gear 34 on the cantilever 35, the cantilever 35 is driven to swing, driving the upper heating plate 51 to descend rapidly. The two sets of parallelogram orientation mechanisms 21 are linked synchronously through the connecting rod 22 to ensure that the upper heating plate 51 always descends horizontally, completing a 50mm stroke within 6-7 seconds.
[0071] When the heating plate 5 touches the product or workbench 4, the top micro switch 37 is triggered and immediately sends a signal to the control system 6. The system instantly stops the idle motor 11 and starts the booster motor 12. Through the four-stage power amplification of the three-point locking mechanism 3, the locking link 31 and the screw 351 are linked. The heating plate 5 applies a preset high pressure to the product, and the three-point locking mechanism 3 automatically locks itself to ensure stable pressure without leakage.
[0072] While the pressure is increased and locked, the heating plate 5 starts heating and continues to work according to the preset temperature and time; the control system 6 monitors the pressure and temperature parameters in real time and dynamically fine-tunes them through the control circuit 61 to ensure that the parameters accurately match the process requirements and are not affected by power grid fluctuations; the symmetrically distributed guide posts 352 balance the lateral stress of the screws 351 to prevent the heating plate from tilting and ensure uniform pressure on the transfer surface.
[0073] After the preset transfer time ends, the control system 6 issues a pressure relief command, the booster motor 12 reverses, the three-point locking mechanism 3 unlocks, the idle motor 11 reverses, and drives the heating plate 5 to rise and reset quickly; after the heating plate 5 is fully raised, the rear micro switch 36 closes, the idle motor 11 stops working, the worktable 4 is pulled out again, the transfer paper / transfer film is removed, the product that has been transferred is taken out, and the transfer effect is checked.
[0074] If continuous operation is required, repeat steps 2-6.
[0075] The various embodiments in the specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.
[0076] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A dual-power heat transfer machine, comprising a dual-motor unit (1), a positioning mechanism (2), a three-point locking mechanism (3), a worktable (4), a heating plate (5), and a control system (6), characterized in that: The dual-motor unit (1) is the power source of the equipment, including an idle motor (11) responsible for the rapid start and stop of the heating plate and a booster motor (12) for high-voltage output; the idle motor (11) is fixedly installed on the positioning mechanism (2), and its power output end is connected to the heating plate (5) to drive the heating plate (5) to open and close quickly; the booster motor (12) is fixedly installed on the top of the heating plate (5), and its power output direction is consistent with the pressure direction of the heating plate (5); the three-point locking mechanism (3) is fixedly installed in the rear area of the workbench (4), and its power input end is hinged to the rear end of the positioning mechanism (2); the control system (6) is integrated on the equipment protective shell outside the positioning mechanism (2), and it is electrically connected to the idle motor (11), the booster motor (12) and the three-point locking mechanism (3) through wires respectively.
2. The dual-power heat transfer machine according to claim 1, characterized in that: The positioning mechanism (2) includes a parallelogram orientation mechanism (21) for ensuring the parallel lifting and lowering of the heating plate and a connecting rod (22) for synchronous transmission. The positioning mechanism (2) is symmetrically arranged with two sets of parallelogram orientation mechanisms (21) along the width direction of the equipment. The corresponding nodes of the two sets of parallelogram orientation mechanisms (21) are hinged at both ends of the connecting rod (22) so that the two sets of orientation mechanisms form a rigid whole that moves synchronously, ensuring that the heating plate (5) remains horizontal during the lifting and lowering process.
3. The dual-power heat transfer machine according to claim 1, characterized in that: The three-point locking mechanism (3) includes a locking link (31) for force transmission and a locking gear (32) for transmission. The top end of the locking link (31) is hinged to the rear end of the positioning mechanism (2), and its bottom is integrally formed with teeth. The teeth mesh with the locking gear (32) to form a gear transmission pair. The central shaft of the locking gear (32) is fixedly connected to a motor located on the outside. The motor directly drives the locking gear (32) to rotate, thereby driving the locking link (31) to rise and fall for adjustment.
4. The dual-power heat transfer machine according to claim 4, characterized in that: The locking link (31) is a three-section force transmission structure, including a first positioning link (311), a second transmission link (312), a third locking link (313), and a fourth transmission suspension (314). The two ends of the second transmission link (312) are respectively hinged to the lower end of the first positioning link (311) and the upper end of the third locking link (313) to form a finely adjustable force transmission mechanism. The lower side of the third locking link (313) is a toothed part adapted to the locking gear (32). The upper end of the first positioning link (311) is hinged and fixed to the rear end of the fourth transmission suspension (314). The front end of the fourth transmission suspension (314) is connected to the positioning mechanism. A lever fulcrum is provided on the fourth transmission suspension (314).
5. The dual-power heat transfer machine according to claim 1, characterized in that: The transmission ratio between the locking gear (32) and the bottom teeth of the third locking link (313) is 1:3, the transmission ratio between the second transmission link (312) and the first positioning link (311) is 1:2, and the transmission ratio between the fourth transmission suspension (314) before and after the lever fulcrum is 1:1.
5.
6. The dual-power heat transfer machine according to claim 1, characterized in that: The three-point locking mechanism (3) also includes a power reversing gear (34), a lever arm amplification cantilever (35), a stroke detection rear micro switch (36), and a front micro switch (37); the lower end of the cantilever (35) is connected to the top center of the heating plate (5), and its upper end is coaxially fixed with the gear (34); a driving gear is fixed on the power output shaft of the idle motor (11), and the driving gear meshes with the gear (34) on the cantilever (35) to realize the power from the motor to the cantilever (35). The transmission of the micro switch (36) and the front micro switch (37) are both fixedly installed on the cantilever (35). The rear micro switch (36) is installed on the rear side of the cantilever (35), and the front micro switch (37) is installed on the front side of the cantilever (35). The detection end of the rear micro switch (36) faces the bottom end face of the idle motor (11), and the detection end of the front micro switch (36) faces the top end face of the heating plate (5). It is used to detect the lifting stroke of the heating plate (5) and feed it back to the control system (6).
7. The dual-power heat transfer machine according to claim 6, characterized in that: The cantilever (35) includes a core force-transmitting screw (351) and a force-balancing guide post (352); the screw (351) is coaxially disposed in the middle of the cantilever (35), and its lower end is threadedly connected to the top of the heating plate (5); the two guide posts (352) are symmetrically distributed on both sides of the screw (351), and their two ends are respectively hinged to the body of the cantilever (35) and the top of the heating plate (5); the round teeth (34) are fixedly sleeved on the upper end of the screw (351) and form a meshing transmission with the drive round teeth of the idle motor (11); The cantilever (35) and the top of the heating plate (5) are provided with a travel distance, which is consistent with the opening and closing distance of the front micro switch (37). The front micro switch (37) is triggered when the heating plate (5) presses the product. After the heating plate (5) is retracted, the front micro switch (37) is automatically disconnected due to the rise of the cantilever (35) and the descent of the heating plate (5) by its own weight.
8. The dual-power heat transfer machine according to claim 1 or 6, characterized in that: The control system (6) includes a core control circuit (61), a human-machine interactive display screen (62), and operation input touch buttons (63); the control circuit (61) is electrically connected to the display screen (62) and the touch buttons (63) respectively to realize parameter display and command input; the control circuit (61) is also electrically connected to the idle motor (11), the booster motor (12), the front micro switch (37) and the micro switch (36) respectively through control wires to form a complete control closed loop.
9. The dual-power heat transfer machine according to claim 8, characterized in that: The workbench (4) includes a guide sliding rail (41), a transmission belt (42), a set of sliding wheels (43), and a drive motor (44). The sliding rail (41) is fixedly installed on one side of the bottom of the workbench (4) in the front-back direction for limiting and guiding the movement of the workbench (4). The workbench (4) is slidably fixed to the sliding rail (41) through pulleys at the bottom, and its fixed end is connected to the equipment frame. The transmission belt (42) is installed on the other side of the bottom of the workbench (4) in the front-back direction, and the set of sliding wheels (43) is installed on the transmission belt (42). On the rear side, there are three fixed wheels and one synchronous wheel. The three fixed wheels are installed on both sides of the synchronous wheel. Two of the fixed wheels mesh with the synchronous wheel, and the other fixed wheel is located at the tail end. The transmission belt (42) passes through the middle part where the fixed wheels and the synchronous wheel mesh. The drive motor (44) is installed above the synchronous wheel to drive the synchronous wheel to rotate. The synchronous wheel drives the transmission belt (42) and the fixed wheels to rotate, which drives the worktable (4) to move back and forth along the sliding guide rail (41) for picking up and putting down products to be transferred. The drive motor (44) is connected and controlled by the control circuit (61).
10. A working method applied to the aforementioned dual-power heat transfer machine, characterized in that, Specifically, the following steps are included: Step 1: After the power is turned on and the equipment is started, the control system (6) will automatically initialize. Select the transfer process and set the corresponding parameters through the touch button (63). The parameters are displayed on the display screen (62) in real time. Step 2: The control circuit (61) controls the drive motor (44) to work. The drive motor (44) makes the synchronous wheel rotate and drives the transmission belt (42) to move and push the worktable (4) outward along the sliding guide rail (41). Place the product to be transferred in the center of the worktable (4), cover it with transfer paper or heat transfer film, and then push the worktable (4) back to its original position by reversing the drive motor (44) so that the worktable (4) and the heating plate (5) are precisely aligned. Step 3: Start the equipment. The control system (6) controls the idle motor (11) to work. The idle motor (11) drives the cantilever (35) to swing through the meshing of the drive round teeth and the round teeth (34) of the cantilever (35) to make the upper heating plate (51) descend. The parallelogram orientation mechanism (21) ensures that the upper heating plate (51) descends horizontally through the linkage (22). The 50mm stroke is completed within 6-7 seconds. Step 4: When the heating plate (5) touches the product or workbench (4), the front micro switch (37) is triggered and sends a signal to the control system (6). The control system (6) stops the idle motor (11) and starts the booster motor (12). Through the four-stage power amplification of the three-point locking mechanism (3), the locking link (31) and the screw (351) are linked, so that the heating plate (5) is subjected to a preset high voltage and is self-locked by the three-point locking mechanism (3). Step 5: After the pressure is increased and locked, the heating plate (5) starts heating, and the control system (6) monitors and dynamically fine-tunes the pressure and temperature parameters in real time through the control circuit (61). Step 6: After the preset transfer time is over, the control system (6) controls the booster motor (12) to run in reverse to unlock, the idle motor (11) works in reverse to drive the heating plate (5) to rise and reset, after the heating plate (5) is fully raised, the micro switch (36) closes, the idle motor (11) stops, and the worktable (4) is pulled out to complete the part removal.