Dragon-shaped rocker arm screen printing machine

Abstract

The utility model discloses a dragon-shaped rocker arm screen printing machine which comprises a machine frame, a receiving body assembly is arranged on the machine frame, the receiving body assembly comprises a wing plate piece, a steering adjusting assembly fixedly arranged on the machine frame is arranged on the lower portion of the wing plate piece in a rotating mode, and a scraping arm preset connector is arranged at the front end of the wing plate piece. A scraping arm mechanism is fixedly arranged on the scraping arm preset connector, a net arm connecting assembly is arranged on the wing plate piece and located below the scraping arm preset connector, and a net arm mechanism is connected to the net arm connecting assembly. According to the dragon-shaped rocker arm screen printing machine, through the unique integrated design of the receiving body assembly, the scraping arm / screen arm connector, bridging off-screen and swinging butt joint, on the premise that the main body structure is kept unchanged, wide compatibility and low-cost expansion of screen printing equipment on the printing area are achieved; and meanwhile, the feeding and discharging efficiency is remarkably improved, the manufacturing cost is reduced, the operation safety is enhanced, and finally the industrial labor use problem is solved by simplifying the operation and machine adjustment process.

Description

Technical Field

[0001] This utility model relates to the field of screen printing technology, specifically a dragon-shaped rocker arm screen printing machine. Background Technology

[0002] Screen printing equipment is a specialized machine used to achieve the printing process. Its principle is to use a squeegee to transfer ink from the graphic area on the screen to the substrate. The equipment that achieves this purpose is called screen printing equipment.

[0003] Existing screen printing equipment is mainly divided into two categories based on its structure: swing-arm screen printing machines and vertical lifting screen printing machines. Swing-arm screen printing machines are further subdivided into two types: small swing-arm screen printing machines for small-area screen printing and angled-arm screen printing machines for large-area screen printing. However, these two types of swing-arm screen printing machines cannot simultaneously handle both large and small areas. Furthermore, large-area angled-arm screen printing machines have excessively high manufacturing costs and poor safety, while small swing-arm screen printing machines, due to their structure, cannot be effectively expanded to accommodate larger areas. Therefore, the two types have poor versatility.

[0004] In summary, existing swing-arm screen printing machines suffer from poor versatility. Utility Model Content

[0005] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution for a dragon-shaped rocker arm screen printing machine that can solve the above problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A dragon-shaped rocker arm screen printing machine includes a frame, on which a receiving body assembly is provided. The receiving body assembly includes a wing plate, and a steering adjustment assembly fixed to the frame is rotatably provided at the lower part of the wing plate.

[0008] The front end of the wing plate is provided with a scraper arm preset interface, and a scraper arm mechanism is fixedly installed on the scraper arm preset interface.

[0009] The wing plate is provided with a net arm connecting assembly below the scraper arm preset interface, and a net arm mechanism is connected to the net arm connecting assembly.

[0010] A rearwardly extending bridging component is fixed on the net arm connecting assembly, and a receiving body off-net mechanism is provided in the middle of the wing plate. The receiving body off-net mechanism includes a clutch assembly and a drive mechanism provided on the wing plate. The clutch assembly and the bridging component work together to control the opening and closing action between the scraping arm mechanism and the net arm mechanism.

[0011] The lower rear end of the wing plate is provided with a swing docking area, and a swing mechanism fixed on the frame is docked on the swing docking area;

[0012] An adjustable lifting platform is provided below the net arm mechanism. The swing mechanism and the steering adjustment component work together to control the opening and closing of the net arm mechanism and the adjustable lifting platform.

[0013] As a further embodiment of this utility model: the clutch assembly includes a cam shaft rotatably mounted on the wing plate and a cam fixedly mounted on the cam shaft, wherein the cam engages with the upper end face of the bridging component in a downward transmission manner.

[0014] The drive mechanism includes an external power source or a manual operation unit for driving the clutch assembly to rotate.

[0015] As a further embodiment of this utility model: the clutch assembly includes an eccentric wheel shaft rotatably mounted on the wing plate and an eccentric wheel fixedly mounted on the eccentric wheel shaft, wherein the eccentric wheel and the lower end face of the bridge component are engaged in a lifting transmission.

[0016] The drive mechanism includes an external power source or a manual operation unit for driving the eccentric wheel to rotate.

[0017] As a further embodiment of this utility model: the clutch assembly includes a limiting rod that is rotatably mounted on the wing plate, and the bridging member is fixedly provided with a tongue fastener that engages with the limiting rod;

[0018] The drive mechanism includes an external power source or a manual operation unit for driving the limit rod to rotate.

[0019] As a further embodiment of this utility model: a sliding rod groove is provided on the bridging component, a sliding rod component is provided in the sliding rod groove, a baffle is provided at the upper end of the sliding rod component, and an abutment block is fixedly provided at the lower end of the sliding rod component to abut against the eccentric wheel component. A boss is formed on the upper surface of the abutment block, and an auxiliary limiting component is connected to the abutment block to make the eccentric wheel component abut against the abutment block.

[0020] As a further embodiment of this utility model: the swing mechanism includes a power component, a slide table driven by the power component, and a pull arm assembly rotatably connected to the slide table. The power component drives the slide table to reciprocate in the up-down direction.

[0021] One end of the pull arm assembly is rotatably connected to the slide table, and the other end of the pull arm assembly is rotatably connected to the swing docking area. The swing docking area and the steering adjustment assembly form a swing arm motion pair under the action of the pull arm assembly.

[0022] As a further embodiment of this utility model: the scraper arm mechanism includes a module frame, which is fixedly mounted on the preset interface of the scraper arm in a single-end fixed manner;

[0023] The module frame is equipped with a module slide assembly and a stroke adjustment assembly for adjusting the forward and backward displacement of the module slide assembly. The module slide assembly is equipped with a bridge plate, and the front end of the bridge plate is equipped with a print head assembly. When the print head assembly is in the foremost position, the bridge plate extends beyond the range of the module frame.

[0024] As a further embodiment of this utility model: the front end of the bridge plate is provided with a printing head support plate, and the printing head assembly includes a doctor blade assembly, a return blade assembly and a double-stroke cylinder for driving the doctor blade assembly and the return blade assembly, which are provided on the printing head support plate. Each pair of double-stroke cylinders is placed on both sides of the module frame.

[0025] As a further embodiment of this utility model: the adjustable lifting worktable includes a worktable component and a lifting adjustment assembly located below the worktable component. The lifting adjustment assembly includes an adjustable lifting support arm. A dovetail slide module is provided on the frame. A worktable bracket that slides with the dovetail slide module is fixed on the worktable component. The upper end of the adjustable lifting support arm is connected to the worktable bracket for support and rotation. The lower end of the adjustable lifting support arm is screwed to the frame.

[0026] As a further embodiment of this utility model: a first elastic connecting unit is provided on the back side of the receiving body assembly, and a second elastic connecting unit is provided on both sides of the swing docking area. One end of the first elastic connecting unit is fixedly connected to the back side of the receiving body assembly, and the other end of the first elastic connecting unit is fixedly connected to the frame. One end of the second elastic connecting unit is fixedly connected to the swing docking area, and the other end of the second elastic connecting unit is fixedly connected to the frame.

[0027] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0028] This utility model of a dragon-shaped rocker arm screen printing machine solves labor shortages by creating simplified application conditions. Through simplified machine setup, standardized interface designs such as the "scraper arm preset interface" and "screen arm connection component," as well as the "steering adjustment component's" ability to fine-tune the angle of the wing plates, it makes changing different specifications of scraper arms and screen arms, as well as routine adjustments such as angle and pressure, faster, more standardized, and easier to master. At the same time, it lowers the operating threshold. The simplification of equipment operation (especially efficient loading and unloading) and the reduction in setup difficulty lower the professional skill requirements for operators. Operators can be trained relatively simply and can operate different specifications of equipment efficiently. This directly alleviates the screen printing industry's reliance on highly skilled workers and the pain points of "labor shortages and recruitment difficulties," providing enterprises with a more stable and economical labor solution.

[0029] This dragon-shaped rocker arm screen printing machine technology solution, through its unique integrated design of "wing plate component - scraper arm / screen arm interface - bridging off-screen - swing docking", achieves wide compatibility and low-cost expansion of the printing area of ​​the screen printing equipment while maintaining the main structure unchanged. At the same time, it significantly improves loading and unloading efficiency, reduces manufacturing costs, enhances inherent safety, and ultimately provides a practical technical foundation for solving the industry's labor shortage problem by simplifying the operation and machine adjustment process. Attached Figure Description

[0030] Figure 1 This is a three-dimensional structural view of the printing state of one embodiment of the present invention;

[0031] Figure 2 This is a perspective view of the internal structure of an embodiment of the present invention in its printed state;

[0032] Figure 3 This is a three-dimensional structural view of a net-lifting state according to an embodiment of this utility model;

[0033] Figure 4 This is a perspective view of the internal structure of the net in a raised state according to an embodiment of the present invention;

[0034] Figure 5 This is a three-dimensional structural view of an embodiment of the present invention in its off-grid state;

[0035] Figure 6 This is a perspective view of the internal structure of the mesh in a combined state according to an embodiment of the present invention;

[0036] Figure 7 This is a three-dimensional structural view of the printing state of another embodiment of the present invention;

[0037] Figure 8 This is a perspective view of the internal structure in the printing state of another embodiment of this utility model;

[0038] Figure 9 This is another perspective view of the internal structure of the printing state of another embodiment of this utility model;

[0039] Figure 10 This is a three-dimensional structural view of the printing state of another embodiment of the present invention;

[0040] Figure 11 This is a perspective view of the internal structure of the printed state in another embodiment of the present invention;

[0041] The reference numerals and names in the figure are as follows:

[0042] Frame-101, Receiving Body Assembly-102, Wing Plate Part-103, Steering Adjustment Assembly-104, Scraper Arm Preset Interface-105, Scraper Arm Mechanism-106, Net Arm Connection Assembly-107, Net Arm Mechanism-108, Bridging Part-109, Receiving Body Off-Net Mechanism-110, Clutch Assembly-111, Drive Mechanism-112, Swinging Docking Area-113, Swinging Mechanism-114, Adjustable Lifting Worktable-115, Cam Shaft Part-116, Cam Part-117, Power Component-121, Slide Table-122, Pull Arm Assembly-123, Module Frame-124, Module Slide Table Assembly-125, Stroke Adjustment Assembly-126 Bridge plate-127, Print head assembly-128, Print head support plate-129, Squeegee assembly-130, Ink return blade assembly-131, Double stroke cylinder-132, Worktable component-133, Lifting adjustment component-134, Adjustable lifting support arm-135, Dovetail slide module-136, Worktable bracket-137, First elastic connection unit-138, Second elastic connection unit-139, Eccentric wheel axle component-160, Eccentric wheel component-161, Slide bar groove-162, Slide bar component-163, Baffle plate-164, Abutment block-165, Auxiliary limiting component-166, Boss component-167, Limiting rod component-171, Tongue buckle component-172. Detailed Implementation

[0043] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0044] Please see Figure 1-11 A dragon-shaped rocker arm screen printing machine includes a frame 101, on which a receiving body assembly 102 is provided. The receiving body assembly 102 includes a wing plate 103, and a steering adjustment assembly 104 fixed to the frame 101 is rotatably provided at the lower part of the wing plate 103.

[0045] The front end of the wing plate 103 is provided with a scraper arm preset interface 105, and a scraper arm mechanism 106 is fixedly provided on the scraper arm preset interface 105.

[0046] The wing plate 103 is provided with a net arm connecting assembly 107 below the scraper arm preset interface 105, and a net arm mechanism 108 is connected to the net arm connecting assembly 107.

[0047] A rearwardly extending bridging member 109 is fixed on the net arm connecting assembly 107, and a receiving body net-off mechanism 110 is provided in the middle of the wing plate member 103. The receiving body net-off mechanism 110 includes a clutch assembly 111 and a drive mechanism 112 provided on the wing plate member 103. The clutch assembly 111 and the bridging member 109 are linked and cooperated to control the opening and closing action between the scraping arm mechanism 106 and the net arm mechanism 108.

[0048] The lower rear end of the wing plate 103 is provided with a swing docking area 113, and a swing mechanism 114 fixed on the frame 101 is docked on the swing docking area 113.

[0049] Below the net arm mechanism 108 is an adjustable lifting worktable 115. The swing mechanism 114 and the steering adjustment component 104 are linked together to control the opening and closing between the net arm mechanism 108 and the adjustable lifting worktable 115.

[0050] This utility model of a dragon-shaped swing arm screen printing machine fundamentally solves the core problems of existing swing arm screen printing machines, such as poor versatility, high cost, low efficiency, and insufficient safety, through innovative structural integration and linkage design. It achieves a balance of high adaptability, low-cost expansion, high efficiency, and high safety.

[0051] This utility model of a dragon-shaped rocker arm screen printing machine has excellent versatility and flexible expandability. First, it can be compatible with both small and large areas. The "receiving body assembly 102" serves as the core support platform. Combined with the "scraper arm preset interface 105", "screen arm connection assembly 107" and adjustable "swing docking area 113", it provides a stable and flexibly configurable foundation for the scraper arm mechanism 106 and the screen arm mechanism 108. This design allows for seamless adaptation to screen printing needs ranging from smaller areas (such as A4, A3) to larger areas (such as A1, A0 or even larger) on the same main structure (frame 101, receiving body assembly 102) by replacing the scraper arm mechanism 106 and the screen arm mechanism 108 of different lengths and adjusting the screen size. This breaks down the specification barriers between small rocker arm machines and large slanted arm machines.

[0052] This utility model of dragon-shaped rocker arm screen printing machine can be expanded in a low-cost modular way. The key is that it does not change the main structure. The core framework consists of the frame 101, the receiving body assembly 102, the swing mechanism 114, etc. Expanding the printing area only requires replacing or lengthening the scraper arm mechanism 106, the screen arm mechanism 108 and the corresponding screen and other modular components. There is no need to redesign and manufacture the expensive overall frame 101 or the complex motion mechanism, which significantly reduces the cost and complexity of upgrading or expanding the specifications of the equipment.

[0053] This utility model of a dragon-shaped rocker arm screen printing machine enables efficient loading and unloading. Unlike vertical lifting screen printing machines that require the entire printing platform to be raised and lowered, this solution is based on the principle of a rocker arm. The squeegee and screen are mounted on a swingable receiving assembly 102. During printing, the squeegee / screen assembly swings above the substrate to work. After printing, they quickly swing upward and backward to raise the substrate area. This allows the operator to quickly and easily pick up and place the substrate without waiting for the platform to rise and fall, greatly shortening the printing cycle per piece and improving overall production efficiency.

[0054] This utility model of a dragon-shaped rocker arm screen printing machine can significantly optimize cost and safety, and has a clear advantage in manufacturing cost. Compared with the inclined arm screen printing machine, which must adopt a complex, bulky and expensive structure to adapt to large areas, this solution cleverly uses the "bridging component 109" to transmit the power of the "receiving body off-screen mechanism 110" (including clutch component 111 and drive mechanism 112) to the screen arm connecting component 107 to control the opening and closing of the screen. This structure is relatively more compact and lightweight, and requires lower material costs and processing complexity, effectively reducing the initial manufacturing cost of large-area screen printing equipment.

[0055] The adjustable lifting worktable 115 can adjust its height in real time according to the thickness of the substrate (such as thin cardboard, thick acrylic, or curved workpieces), ensuring that the screen and the substrate always maintain the optimal printing gap (screen distance). This solves the problem of over-pressing thin materials or missing printing on thick materials caused by the fixed worktable in traditional equipment, significantly improving printing clarity and ink layer uniformity. The lifting of the worktable is linked to the opening and closing of the screen arm, enabling the pressure of the screen on the substrate during the printing process to dynamically adapt, avoiding the risk of localized false printing or screen breakage due to unevenness or thickness of the substrate. Through the linkage mechanism, the operator only needs to adjust the worktable. By selecting the height or preset screen opening and closing position, the opening and closing angle of the screen arm and the position of the worktable can be simultaneously triggered, simplifying the complex process of adjusting the screen distance, screen height and worktable height step by step in traditional equipment into a single operation, thus improving the efficiency of machine adjustment. At the same time, it can achieve seamless connection of loading and unloading. When printing is finished, the swing mechanism 114 drives the wing plate 103 to lift up as a whole (screen arm opening and closing), forming a larger unobstructed operating space, and the operator can quickly pick up and put down the printing substrate. When printing is started, the worktable is precisely raised to the preset height and the screen arm closes synchronously, realizing zero-wait connection of the "picking up and putting down - printing" action.

[0056] Mechanical interlocks can reduce the risk of workers being crushed. In one embodiment, a linkage protection mechanism is set up. The linkage design is set up through the program to ensure that the net arm cannot close when the work platform is not lowered to a safe position; conversely, the work platform cannot rise when the net arm is not fully open. This rigid interlock mechanism completely eliminates the risk of the operator's hands being crushed by the net frame or scraper.

[0057] The inherent safety of this dragon-shaped rocker arm screen printing machine is significantly improved. Firstly, in terms of structural stability, the screen arm mechanism 108 is directly and securely mounted on the wing plate 103 through the "screen arm connecting component 107" and linked with the screen-off mechanism through the "bridging component 109". The support and movement path of the entire squeegee-screen system are more stable and reliable, reducing the risk of vibration and deformation that may be caused by the long cantilever structure of large inclined arm machines. At the same time, this dragon-shaped rocker arm screen printing machine has controllable motion control. The "swing mechanism 114" and the "steering adjustment component 104" ensure that the wing plate 103 and the entire suspension assembly move within the preset trajectory and angle range. The "receiving body screen-off mechanism 110" controls the opening and closing action of the screen (screen-off height and angle) through a cam, avoiding safety hazards caused by manual intervention or uncontrollable movement. The overall design optimization reduces the risk points of operators being exposed to moving parts.

[0058] This utility model of a dragon-shaped rocker arm screen printing machine solves labor shortages by creating simplified application conditions. Through simplified machine setup, standardized interface designs such as the "scraper arm preset interface 105" and the "screen arm connecting component 107," as well as the "steering adjustment component 104's" ability to fine-tune the angle of the wing plate 103, make changing different specifications of scraper arms and screen arms, as well as routine adjustments such as angle and pressure, faster, more standardized, and easier to master. Simultaneously, it lowers the operational threshold. The simplification of equipment operation (especially efficient loading and unloading) and the reduction in setup difficulty lower the professional skill requirements for operators. Operators can be trained relatively simply and can efficiently operate different specifications of equipment. This directly alleviates the screen printing industry's reliance on highly skilled workers and the pain points of "labor shortages and recruitment difficulties," providing enterprises with a more stable and economical labor solution.

[0059] This dragon-shaped rocker arm screen printing machine technology solution, through its unique integrated design of "wing plate component - scraper arm / screen arm interface - bridging off-screen - swing docking", achieves wide compatibility and low-cost expansion of the printing area of ​​the screen printing equipment while maintaining the main structure unchanged. At the same time, it significantly improves loading and unloading efficiency, reduces manufacturing costs, enhances inherent safety, and ultimately provides a practical technical foundation for solving the industry's labor shortage problem by simplifying the operation and machine adjustment process.

[0060] In this embodiment of the present invention, the clutch assembly 111 includes a cam shaft 116 rotatably mounted on the wing plate 103 and a cam 117 fixedly mounted on the cam shaft 116. The cam 117 is in a downward transmission engagement with the upper end face of the bridging member 109.

[0061] The drive mechanism 112 includes an external power source or a manual operation unit for driving the clutch assembly 111 to rotate.

[0062] In this utility model of a dragon-shaped rocker arm screen printing machine, the clutch assembly 111 is composed of a cam 117 fixed on the cam shaft 116, and the cam 117 directly abuts against the bridging component 109. Simultaneously, the drive mechanism 112 is compatible with both external power sources and manual operation units, bringing several significant advantages: First, it strengthens structural rigidity and ensures operational quality. The cam 117 is fixedly mounted on the shaft to form an integral rigid structure, and transmits power through direct, rigid contact with the bridging component 109 (rather than flexible connection or indirect transmission), effectively eliminating transmission gaps and elastic deformation. This ensures the synchronization and stability of the screen arm mechanism 108's screen opening (opening) and closing (tightening) actions, providing a solid mechanical foundation for printing quality (such as screen consistency and ink layer uniformity). Second, it significantly improves operational reliability. This rigid contact structure has strong anti-interference capabilities, is not easily affected by vibration or load changes, and has high repeatability. This significantly reduces the failure rate caused by wear, loosening, or failure of transmission components, improving the long-term reliability and durability of the equipment. Thirdly, it enhances the flexibility and safety of the operating mode. The dual-mode design of the drive mechanism 112 is key—an external power source (such as a motor) supports automated continuous production, improving efficiency; while the manual operation unit (such as a handwheel) provides a reliable means of operation in case of power failure, debugging, maintenance, or emergencies. Operators can safely control the opening and closing state of the screen arm without relying on electricity (for example, when changing the screen, cleaning, or handling jammed materials), greatly improving the inherent safety of the equipment and its adaptability to sudden working conditions. Fourthly, it facilitates maintenance and debugging. The structure of the clutch assembly 111 is clear and straightforward, and its working state (such as the contact point between the cam profile and the bridging component 109) is easy to observe and adjust. Combined with the manual operation mode, it makes the daily maintenance, parameter calibration, and fault diagnosis of the equipment more intuitive and convenient.

[0063] In this embodiment of the present invention, the clutch assembly 111 includes an eccentric wheel shaft 160 rotatably mounted on the wing plate 103 and an eccentric wheel 161 fixedly mounted on the eccentric wheel shaft 160. The eccentric wheel 161 is in a lifting transmission engagement with the lower end face of the bridge member 109.

[0064] The drive mechanism 112 includes an external power source or a manual operation unit for rotating the eccentric wheel 161.

[0065] In one embodiment, the bridging member 109 is provided with a sliding rod groove 162, and a sliding rod member 163 is provided in the sliding rod groove 162. A baffle 164 is provided at the upper end of the sliding rod member 163, and an abutment block 165 is fixedly provided at the lower end of the sliding rod member 163 to abut against the eccentric wheel member 161. A boss member 167 is formed on the upper surface of the abutment block 165, and an auxiliary limiting member 166 is connected to the abutment block 165 to make the eccentric wheel member 161 abut against the abutment block 165.

[0066] The baffle 164 is used to constrain the sliding rod 163, so that the bridging member 109 and the abutment block 165 are always in contact with each other. With the physical guidance of the boss member 167, the boss member 167 slides in the sliding groove 162 of the sliding rod during the rotation of the eccentric wheel member 161. At the same time, the abutment block 165 abuts with the eccentric wheel member 161, thereby controlling the swing of the bridging member 109, thereby controlling the synchronization and stability of the net arm mechanism 108's net leaving (opening) and net closing (tightening) actions.

[0067] In one embodiment, the auxiliary limiting member 166 covers the surface of the eccentric wheel member 161, so that the eccentric wheel member 161 and the abutment block 165 are always in contact with each other.

[0068] When the eccentric wheel 161 rotates, it pushes the abutment block 165 to move along the groove. Its gradual curvature design enables the bridging component 109 to obtain a net-leaving acceleration curve that is fast at first and then slow, ensuring a gentle and smooth net-leaving process and preventing damage to the net.

[0069] It retains dual drive interfaces for the external power source motor and the manual operation unit handwheel. In the event of a sudden power outage, the net arm can be manually released via the handwheel for emergency net replacement, net washing and other machine adjustment operations, reducing downtime.

[0070] The auxiliary limiting component can be replaced separately to prevent the eccentric wheel from detaching from the abutment block.

[0071] In this embodiment of the present invention, the clutch assembly 111 includes a limiting rod 171 rotatably mounted on the wing plate 103 at one end, and a tongue fastener 172 that engages with the limiting rod is fixed on the bridging member 109.

[0072] The drive mechanism 112 includes an external power source or a manual operation unit for driving the limit rod 171 to rotate.

[0073] In this utility model of dragon-shaped rocker arm screen printing machine, the limiting rod 171 and the tongue fastener 172 adopt a hook-type rigid fastening (non-friction contact) to form a mechanical forced locking. When the screen arm is closed, the limiting rod rotates to the locking position to withstand a large mass pull-out force, completely eliminating the risk of accidental opening and closing during operation and meeting the requirements of heavy load operation.

[0074] The limiting lever only needs to be rotated slightly to lock / release, resulting in higher work efficiency;

[0075] The hard alloy tongue fastener and the quenched limit rod form a metal interlocking pair, which has a long service life and good repeatability of the opening and closing position of the mesh arm;

[0076] The opening and closing control of the net arm mechanism 108 is simplified by engaging the limiting rod 171 with the tongue fastener 172. The net arm mechanism 108 can be opened simply by swinging the limiting rod 171. Then, by raising the net arm mechanism 108, the bridge plate is reset to the predetermined position. Engaging the limiting rod 171 with the tongue fastener 172 completes the tightening of the net arm mechanism 108. This saves production costs and lowers the operating threshold. The simplification of equipment operation and the reduction of adjustment difficulty reduce the professional skill requirements for operators, thereby lowering the job competency standards and reducing labor costs.

[0077] In this embodiment of the present invention, the swing mechanism 114 includes a power component 121, a slide 122 driven by the power component 121, and a pull arm assembly 123 rotatably connected to the slide 122. The power component 121 drives the slide 122 to reciprocate in the up-down direction.

[0078] One end of the pull arm assembly 123 is rotatably connected to the slide table 122, and the other end of the pull arm assembly 123 is rotatably connected to the swing docking area 113. The swing docking area 113 and the steering adjustment assembly 104 form a swing arm motion pair under the action of the pull arm assembly 123.

[0079] This utility model of a dragon-shaped rocker arm screen printing machine achieves optimization in structural reliability, energy efficiency, and safety through the integrated design of a power component 121 driving the slide table 122 to lift and lower, a double-end rotating pull arm assembly 123, and a swing arm motion pair. First, the slide table 122 is strictly limited to linear motion in the up and down direction (achieved through precision guide rails or guide columns), eliminating lateral offset or torsional deformation and ensuring the purity of the power transmission direction from the source.

[0080] Secondly, one end of the pull arm assembly 123 is rotatably connected to the slide table 122, and the other end is rotatably connected to the swing docking area 113 of the wing plate 103. The linear displacement of the slide table 122 is converted into the constant circular arc swing of the wing plate 103 through the lever principle. By calculating the length of the pull arm and the position of the hinge point, the repeated positioning of the swing angle can be achieved, ensuring that the squeegee and the screen are in the same position each time they fall, reducing defects such as misregistration and ink splatter caused by trajectory deviation. At the same time, the swing angle can be adjusted by adjusting the length of the pull arm and the position of the hinge point.

[0081] When the swing is obstructed (such as when the operator's hand is accidentally placed under the screen), the swing of the screen arm mechanism 108 is more gradual than the vertical lifting of the vertical lifting screen printing machine, so the operator has enough time to react, greatly improving the safety of the operation.

[0082] In one embodiment, when the swing is obstructed (such as when the screen collidees with a foreign object), the vertical movement of the slide table 122 is obstructed, triggering the pressure sensor, and the power component 121 stops immediately to avoid damage to the mechanical structure due to forced overload.

[0083] The double rotating joint of the pull arm assembly 123 adopts self-lubricating bearings or needle roller bearings, which reduces the coefficient of friction and efficiently converts the vertical driving force of the power component 121 (such as a servo motor or cylinder) into swing torque.

[0084] Physical stops are set at the upper and lower limit positions of the slide table 122 to forcibly limit the maximum swing angle of the wing plate 103 (such as 0°~70°) and prevent overtravel impact;

[0085] The slide 122 can be directly adapted to electric push rods, servo electric cylinders, pneumatic-hydraulic booster cylinders, etc., and users can flexibly select the appropriate configuration based on cost and precision requirements.

[0086] In this embodiment of the present invention, the scraper arm mechanism 106 includes a module frame 124, which is fixedly mounted on the scraper arm preset interface 105 in a single-end fixed manner.

[0087] The module frame 124 is provided with a module slide assembly and a stroke adjustment assembly 126 for adjusting the front and rear displacement of the module slide assembly. The module slide assembly is provided with a bridge plate 127. The front end of the bridge plate 127 is provided with a print head assembly 128. When the print head assembly 128 is in the foremost position, the bridge plate 127 extends out of the module frame 124.

[0088] When the print head module is in its forward position, the entire print head module is outside the module frame of the pneumatic module, minimizing the space occupied by the module body and facilitating the operator's handling of the printing substrate. This reduces its space occupation without affecting its adjustment and use. Simultaneously, the double-stroke cylinders on the print head support plate are positioned on both sides of the top surface to prevent collisions between the cylinders and the pneumatic module during the print head module's forward and backward movement.

[0089] In one embodiment, the length of the bridge block is greater than the length of the slide block, so as to ensure that when the print head module is in the foremost position, the entire print head module is outside the module frame of the pneumatic module.

[0090] The scraper arm mechanism 106 of this dragon-shaped rocker arm screen printing machine adopts a single-end fixed module frame 124 integrated with a slide table 125 adjustment system. The module frame 124 is rigidly anchored to a preset interface to form a stable base. Combined with the precision guidance of the internal module slide table assembly and the stepless displacement control of the stroke adjustment assembly, the print head assembly 128 carried by the bridge plate 127 achieves high-quality front-to-back positioning, thereby significantly improving the stability of the scraper pressure and printing trajectory. The single-end fixed module frame 124 eliminates the cumulative error of multi-node installation, ensuring the overall rigidity of the scraper system. This, combined with the zero-backlash linear motion of the slide table 125 assembly, further enhances the system's stability. This design ensures that the print head is free from drift and vibration during the printing process, guaranteeing ink uniformity. Simultaneously, it enables rapid adjustment of printing parameters. The stroke adjustment component 126 can directly control the horizontal displacement of the print head assembly 128, allowing for adaptation to different screen sizes or correction of the squeegee's start and end positions without disassembling parts, thus improving machine setup efficiency. The modular design allows for quick disassembly and replacement of the squeegee arm mechanism 106. The enclosed slide 125 isolates the print head assembly from dust and ink corrosion, extending the lifespan of key transmission components. Furthermore, the standardized interface of the bridge plate 127 supports plug-and-play upgrades of the print head assembly 128, significantly reducing subsequent maintenance costs and downtime losses.

[0091] In this embodiment of the present invention, the front end of the bridge plate 127 is provided with a print head support plate 129, and the print head assembly 128 includes a doctor blade assembly 130, a return blade assembly 131 and a double-stroke cylinder 132 for driving the doctor blade assembly 130 and the return blade assembly 131, which are respectively placed on both sides of the module frame 124.

[0092] The printhead assembly 128 of this dragon-shaped rocker arm screen printing machine is driven by dual-sided double-stroke cylinders 132 and features an integrated doctor blade / return blade design, which improves printing quality, efficiency, and reliability. Firstly, the dual-stroke cylinders 132 (each with an independent air path) drive the doctor blade and return blade assembly 131 in a synchronous push-pull mode, ensuring the blade remains horizontal throughout its movement, eliminating tilting or vibration caused by single-point drive, and controlling the doctor blade pressure deviation within tolerance range, thus completely solving the problems of uneven ink layer and dot deformation. Secondly, the dual-stroke cylinders... The 132 supports segmented intelligent control of the scraping / returning ink action (such as fast advance-working advance-fast retraction), shortening the single printing cycle. It can also be programmed to customize short strokes (partial ink replenishment) or long strokes (full-width printing), adapting to multi-variety production without mechanical modification. Meanwhile, the modular printhead support plate 129 integrates the scraping / returning ink dual blades, avoiding the assembly errors of the traditional split structure. The closed cylinder improves the anti-contamination capability. Combined with the quick-release structure of the bridge plate 127, it reduces the time for blade replacement and maintenance, significantly reducing downtime losses, and eliminating the safety risks of manual blade adjustment.

[0093] In this embodiment of the utility model, the adjustable lifting worktable 115 includes a worktable component 133 and a lifting adjustment component 134 disposed below the worktable component 133. The lifting adjustment component 134 includes an adjustable lifting support arm 135. The frame 101 is provided with a dovetail slide module 136. The worktable component 133 is fixedly provided with a worktable support 137 that slides with the dovetail slide module 136. The upper end of the adjustable lifting support arm 135 is supported and connected to the worktable support 137, and the lower end of the adjustable lifting support arm 135 is screwed to the frame 101.

[0094] This utility model of a dragon-shaped rocker arm screen printing machine achieves optimized height adjustment of the printing substrate through an innovative structure of dovetail slide module 136 for guidance, adjustable lifting support arm 135 for screw support, and modular bracket conversion. First, it achieves a combination of rigidity and stability. The inclined self-locking cooperation between the dovetail slide module 136 and the worktable bracket 137 eliminates lateral movement. The adjustable lifting support arm 135 is rigidly screwed to the frame 101 through threads to form an anti-torsion triangular support structure, ensuring the consistency of screen spacing in material printing.

[0095] The rotating lifting arm can drive the worktable support 137 to move vertically along the dovetail guide rail (high adjustment resolution), which can quickly adapt to substrates of different thicknesses without the need for auxiliary tools, thus improving the efficiency of machine adjustment; the mechanical self-locking structure automatically maintains the position when the power is off, eliminating the risk of equipment damage and personal injury caused by accidental settlement, while the modular structure shortens the overall replacement time.

[0096] In this embodiment of the present invention, a first elastic connecting unit 138 is provided on the back side of the receiving body assembly 102, and a second elastic connecting unit 139 is provided on both sides of the swing docking area 113. One end of the first elastic connecting unit 138 is fixedly connected to the back side of the receiving body assembly 102, and the other end of the first elastic connecting unit 138 is fixedly connected to the frame 101. One end of the second elastic connecting unit 139 is fixedly connected to the swing docking area 113, and the other end of the second elastic connecting unit 139 is fixedly connected to the frame 101.

[0097] This utility model of a dragon-shaped rocker arm screen printing machine achieves intelligent self-reset and intrinsic safety upgrades in non-operational states through a dual elastic architecture: a first elastic connecting unit 138 is set on the back side of the receiving body assembly 102, and a second elastic connecting unit 139 is symmetrically set on both sides of the swing docking area 113. The first elastic unit directly connects the receiving body assembly 102 and the frame 101, providing the main lift to drive the wing plate 103 to automatically lift. The second elastic unit is symmetrically arranged on both sides, which accurately constrains the swing trajectory while assisting in lifting, eliminating the risk of off-center loading. The two work together to form a three-dimensional elastic support system, ensuring that the receiving body assembly 102 (including the scraper arm / screen arm mechanism 108) automatically returns to a safe tilt angle (naturally lifted state) when the machine stops, solving safety hazards such as scraper falling and screen collision caused by manual reset negligence. Under the premise of low cost and increased consumption, a "fail-safe" protection mechanism is constructed, which greatly reduces the difficulty of operator safety training and the burden of equipment supervision.

[0098] In one embodiment, the dragon-shaped rocker arm screen printing machine of this utility model, through biomimetic industrial design, innovatively integrates the mechanical layout of the frame, receiving body components and scraping arm mechanism into the shape of a "dragon head", achieving a deep integration of function and aesthetics, and boosting brand recognition and market competitiveness. The unique dragon head outline (the frame is a dragon neck support structure, the receiving body components form the skull outline, and the scraping arm mechanism resembles a protruding dragon jaw) breaks the stereotype of traditional screen printing equipment, enhances visual recognition, and helps enterprises establish a differentiated brand image in the high-end equipment market.

[0099] The streamlined curves of the dragon head shape naturally guide the operator's eye to focus on the core printing area, while the arc-shaped scraper mechanism reduces the feeling of oppression in the working space. Combined with the backward-tilting "dragon neck" frame, it provides ample operating passage and reduces operator fatigue.

[0100] Transforming cold, mechanical objects into cultural symbols aligns with the aesthetic upgrade trend of "Made in China 2025" and enhances user trust and operational enjoyment through morphological psychology, indirectly driving the growth of high-value space in equipment.

[0101] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A dragon-shaped rocker arm screen printing machine, characterized in that, Includes a frame (101), on which a receiving body assembly (102) is provided, the receiving body assembly (102) includes a wing plate (103), and a steering adjustment assembly (104) fixed to the frame (101) is rotatably provided on the lower part of the wing plate (103). The front end of the wing plate (103) is provided with a scraper arm preset interface (105), and a scraper arm mechanism (106) is fixed on the scraper arm preset interface (105). The wing plate (103) is provided with a net arm connecting assembly (107) below the scraper arm preset interface (105), and a net arm mechanism (108) is connected to the net arm connecting assembly (107). A rearwardly extending bridging member (109) is fixed on the net arm connecting assembly (107), and a receiving body net-off mechanism (110) is provided in the middle of the wing plate member (103). The receiving body net-off mechanism (110) includes a clutch assembly (111) and a drive mechanism (112) provided on the wing plate member (103). The clutch assembly (111) and the bridging member (109) work together to control the opening and closing action between the scraping arm mechanism (106) and the net arm mechanism (108). The lower rear end of the wing plate (103) is provided with a swing docking area (113), and a swing mechanism (114) fixed on the frame (101) is docked on the swing docking area (113). An adjustable lifting platform (115) is provided below the net arm mechanism (108). The swing mechanism (114) and the steering adjustment component (104) work together to control the opening and closing between the net arm mechanism (108) and the adjustable lifting platform (115).

2. The dragon-shaped rocker arm screen printing machine according to claim 1, characterized in that, The clutch assembly (111) includes a cam shaft (116) rotatably mounted on the wing plate (103) and a cam (117) fixedly mounted on the cam shaft (116), wherein the cam (117) is in a downward transmission engagement with the upper end face of the bridge member (109); The drive mechanism (112) includes an external power source or manual operation unit for driving the clutch assembly (111) to rotate.

3. The dragon-shaped rocker arm screen printing machine according to claim 1, characterized in that, The clutch assembly (111) includes an eccentric wheel shaft (160) rotatably mounted on the wing plate (103) and an eccentric wheel (161) fixedly mounted on the eccentric wheel shaft (160). The eccentric wheel (161) is in a lifting transmission engagement with the lower end face of the bridge member (109). The drive mechanism (112) includes an external power source or manual operation unit for driving the eccentric wheel (161) to rotate.

4. A dragon-shaped rocker arm screen printing machine according to claim 1, characterized in that, The clutch assembly (111) includes a limiting rod (171) rotatably mounted on the wing plate (103) at one end, and a tongue fastener (172) that engages with the limiting rod is fixed on the bridging member (109). The drive mechanism (112) includes an external power source or manual operation unit for driving the limit rod (171) to rotate.

5. A dragon-shaped rocker arm screen printing machine according to claim 3, characterized in that, The bridging component (109) is provided with a sliding rod groove (162), and a sliding rod component (163) is provided in the sliding rod groove (162). A baffle (164) is provided at the upper end of the sliding rod component (163), and an abutment block (165) is fixedly provided at the lower end of the sliding rod component (163) to abut against the eccentric wheel component (161). A boss component (167) is formed on the upper end surface of the abutment block (165), and an auxiliary limiting component (166) is connected to the abutment block (165) to make the eccentric wheel component (161) abut against the abutment block (165).

6. A dragon-shaped rocker arm screen printing machine according to any one of claims 1-5, characterized in that, The swing mechanism (114) includes a power component (121), a slide (122) driven by the power component (121), and a pull arm assembly (123) rotatably connected to the slide (122). The power component (121) drives the slide (122) to reciprocate in the up and down direction. One end of the pull arm assembly (123) is rotatably connected to the slide (122), and the other end of the pull arm assembly (123) is rotatably connected to the swing docking area (113). The swing docking area (113) and the steering adjustment assembly (104) form a swing arm motion pair under the action of the pull arm assembly (123).

7. A dragon-shaped rocker arm screen printing machine according to claim 6, characterized in that, The scraper arm mechanism (106) includes a module frame (124), which is fixed to the scraper arm preset interface (105) in a single-end fixed form; The module frame (124) is provided with a module slide assembly (125) and a stroke adjustment assembly (126) for adjusting the front and rear displacement of the module slide assembly (125). A bridge plate (127) is provided in the module slide assembly (125). A print head assembly (128) is provided at the front end of the bridge plate (127). When the print head assembly (128) is in the foremost position, the bridge plate (127) extends out of the module frame.

8. A dragon-shaped rocker arm screen printing machine according to claim 7, characterized in that, The front end of the bridge plate (127) is provided with a print head support plate (129). The print head assembly (128) includes a doctor blade assembly (130), a return blade assembly (131) and a double-stroke cylinder (132) for driving the doctor blade assembly (130) and the return blade assembly (131) on the print head support plate (129). Each pair of double-stroke cylinders (132) is placed on both sides of the module frame (124).

9. A dragon-shaped rocker arm screen printing machine according to claim 1, 2, 3, 4, 5, 7, or 8, characterized in that, The adjustable lifting worktable (115) includes a worktable component (133) and a lifting adjustment component (134) located below the worktable component (133). The lifting adjustment component (134) includes an adjustable lifting arm (135). A dovetail slide module (136) is provided on the frame (101). A worktable support (137) that slides with the dovetail slide module (136) is fixed on the worktable component (133). The upper end of the adjustable lifting arm (135) is connected to the worktable support (137) for support and transfer. The lower end of the adjustable lifting arm (135) is screwed to the frame (101).

10. A dragon-shaped rocker arm screen printing machine according to claim 9, characterized in that, The back of the receiving body assembly (102) is provided with a first elastic connecting unit (138), and the two sides of the swing docking area (113) are respectively provided with a second elastic connecting unit (139). One end of the first elastic connecting unit (138) is fixedly connected to the back of the receiving body assembly (102), and the other end of the first elastic connecting unit (138) is fixedly connected to the frame (101). One end of the second elastic connecting unit (139) is fixedly connected to the swing docking area (113), and the other end of the second elastic connecting unit (139) is fixedly connected to the frame (101).

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