Dragon-shaped rocker arm screen printing machine

Abstract

The dragon-shaped rocker arm screen printing machine comprises a rack, the rack is provided with a receiving body assembly, the receiving body assembly comprises a wing plate piece, the lower portion of the wing plate piece is rotationally provided with a steering adjusting assembly fixedly arranged on the rack, the front end of the wing plate piece is provided with a scraping arm preset connector, and 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] The invention relates to the technical field of screen printing, in particular to a dragon-shaped rocker arm screen printing machine. Background Art

[0002] Screen printing equipment is a special machine used to realize the printing process. Its principle is to use a scraper to print ink from the image area pre-made on the screen plate onto the substrate. The equipment that achieves this purpose is called screen printing equipment.

[0003] The existing screen printing equipment is mainly divided into two categories according to the structure: swing arm screen printer and vertical lifting screen printer. There are two types of swing arm screen printers, one is a small swing arm screen printer for small area screen printing, and the other is an oblique arm screen printer for large area screen printing. Because the above two types of swing arm screen printers cannot be compatible with large and small areas at the same time, and the large area oblique arm screen printer has too high manufacturing cost and poor safety, the small swing arm screen printer cannot be effectively expanded to a larger area printing specification due to structural reasons, and the two have poor versatility.

[0004] In summary, the existing swing-arm screen printing machines have the problem of poor versatility. Summary of the invention

[0005] In order to overcome the above-mentioned shortcomings, the present invention aims to provide a dragon-shaped rocker arm screen printing machine with a technical solution to solve the above-mentioned problems.

[0006] To achieve the above object, the present invention provides the following technical solutions: A dragon-shaped rocker arm screen printer comprises a frame, a receiving body assembly is arranged on the frame, the receiving body assembly comprises a wing plate, a steering adjustment assembly fixedly arranged on the frame is rotatably arranged at the lower part of the wing plate; The front end of the wing plate is provided with a scraper arm preset interface, and a scraper arm mechanism is fixed on the scraper arm preset interface; The wing plate is provided with a net arm connecting assembly below the preset interface of the scraper arm, and the net arm connecting assembly is connected with a net arm mechanism; A bridge member extending backward is fixed on the mesh arm connection assembly, and a receiving body off-mesh mechanism is provided in the middle of the wing plate member, and the receiving body off-mesh mechanism includes a clutch assembly and a driving mechanism arranged on the wing plate member, and the clutch assembly and the bridge member are linked to control the opening and closing action between the scraper arm mechanism and the mesh arm mechanism; A swing docking area is provided at the lower end of the rear side of the wing plate, and a swing mechanism fixed on the frame is docked on the swing docking area; An adjustable lifting workbench is arranged below the net arm mechanism, and the swing mechanism and the steering adjustment component are linked and cooperated to control the opening and closing between the net arm mechanism and the adjustable lifting workbench.

[0007] As a further solution of the present invention: The clutch assembly includes a cam rotating shaft member rotatably mounted on the wing plate member and a cam member fixedly mounted on the cam rotating shaft member, and the cam member is in a downward pressing transmission fit with the upper end surface of the bridging member; The driving mechanism includes an external power source or a manual operation unit for driving the rotation of the clutch assembly.

[0008] As a further solution of the present invention: The clutch assembly includes an eccentric wheel shaft member rotatably mounted on the wing plate member and an eccentric wheel member fixedly mounted on the eccentric wheel shaft member, and the eccentric wheel is in a jacking transmission fit with the lower end surface of the bridging member; The driving mechanism includes an external power source or a manual operation unit for driving the rotation of the eccentric wheel member.

[0009] As a further solution of the present invention: The clutch assembly includes a limiting rod member rotatably mounted at one end on the wing plate member, and a tongue fastener fixedly provided on the bridging member and engaged with the limiting rod member; The driving mechanism includes an external power source or a manual operation unit for driving the rotation of the limiting rod member.

[0010] As a further solution of the present invention: A slide bar chute is provided on the bridging member, a slide bar member is provided in the slide bar chute, a retaining piece is provided at the upper end of the slide bar member, an abutting block engaged with the eccentric wheel member is fixedly provided at the lower end of the slide bar member, a convex platform member is formed on the upper end surface of the abutting block, and an auxiliary limiting member for making the eccentric wheel member and the abutting block in an abutting fit is connected to the abutting block.

[0011] As a further solution of the present invention: The swinging mechanism includes a power member, a slide table driven by the power member, and a pull arm assembly rotatably connected to the slide table, and the power member drives the slide table to reciprocate in the up and down direction; One end of the pull arm assembly is rotatably connected to the slide table, the other end of the pull arm assembly is rotatably connected to the swinging docking area, and the swinging docking area and the steering adjustment assembly form a swing arm kinematic pair under the action of the pull arm assembly.

[0012] As a further solution of the present invention: The scraping arm mechanism includes a module frame fixedly provided on the preset interface of the scraping arm in a single-end fixed form; A module slide table assembly and a stroke adjustment assembly for adjusting the front and rear displacement of the module slide table assembly are provided in the module frame. A bridge plate is provided in the module slide table assembly. When the printing head assembly is in the most forward position, the bridge plate extends out of the range of the module frame.

[0013] As a further solution of the present invention: A printing head support plate is provided at the front end of the bridge plate. The printing head assembly includes a scraping blade assembly, a back-inking blade assembly provided on the printing head support plate, and a double-stroke cylinder for driving the scraping blade assembly and the back-inking blade assembly. Every two groups of double-stroke cylinders are respectively arranged on both sides of the module frame.

[0014] As a further solution of the present invention: the adjustable lifting workbench includes a workbench member and a lifting adjustment component arranged under the workbench member, the lifting adjustment component includes an adjustable lifting support arm, the frame is provided with a dovetail slide module, the workbench member is fixedly provided with a workbench bracket that slides with the dovetail slide module, the upper end of the adjustable lifting support arm is supported and transferred to the workbench bracket, and the lower end of the adjustable lifting support arm is screwed and matched with the frame.

[0015] As a further solution of the present invention: a first elastic connection unit is provided on the back side of the receiving body assembly, and second elastic connection units are respectively provided on both sides of the swing docking area, one end of the first elastic connection unit is fixedly connected to the back side of the receiving body assembly, and the other end of the first elastic connection unit is fixedly connected to the frame, one end of the second elastic connection unit is fixedly connected to the swing docking area, and the other end of the second elastic connection unit is fixedly connected to the frame.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The dragon-shaped rocker arm screen printing machine of the present invention solves the employment problem by creating simple application conditions. Through the simplified machine adjustment, the standardized interface design of "scraper arm preset interface", "screen arm connection component" and the "steering adjustment component" can fine-tune the angle of the wing plate, so that the replacement of scraper arms and screen arms of different specifications and the conventional machine adjustment of angle, pressure, etc. become faster, more standardized and easier to master; at the same time, the operation threshold is lowered, the equipment operation is simplified (especially the efficient loading and unloading) and the difficulty of machine adjustment is reduced, so that the professional skill requirements for operators are relatively reduced. Operators can take up their posts after relatively simple training and can efficiently operate equipment of different specifications. This directly alleviates the dependence of the screen printing industry on highly skilled workers and the pain points of "difficulty in employing and recruiting workers", and provides enterprises with a more stable and economical employment solution; The dragon-shaped rocker arm screen printing machine's technical solution, through its unique "wing plate-scraper arm / screen arm interface-bridge off-grid-swing docking" integrated design, achieves wide compatibility and low-cost expansion of the printing area of screen printing equipment while maintaining the main structure unchanged. At the same time, it significantly improves the loading and unloading efficiency, reduces manufacturing costs, and enhances inherent safety. Ultimately, by simplifying the operation and adjustment process, it provides a practical technical basis for solving the industry's employment problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural stereogram of a printing state of an embodiment of the present invention; Figure 2 It is a three-dimensional diagram of the internal structure of an embodiment of the present invention in a printing state; Figure 3 This is a structural stereogram of a net-lifting state in one embodiment of the present invention; Figure 4It is a three-dimensional internal structure diagram of the lifting net state of an embodiment of the present invention; Figure 5 It is a three-dimensional structure diagram of the off-net state of an embodiment of the present invention; Figure 6 It is a three-dimensional internal structure diagram of the net-closed state of an embodiment of the present invention; Figure 7 It is a three-dimensional structure diagram of the printing state of another embodiment of the present invention; Figure 8 It is a three-dimensional internal structure diagram of the printing state of another embodiment of the present invention; Figure 9 It is another three-dimensional internal structure diagram of the printing state of another embodiment of the present invention; Figure 10 It is a three-dimensional structure diagram of the printing state of yet another embodiment of the present invention; Figure 11 It is a three-dimensional internal structure diagram of the printing state of yet another embodiment of the present invention; The reference numerals and names in the figure are as follows: Frame - 101, receiving body assembly - 102, wing plate member - 103, steering adjustment assembly - 104, scraping arm preset interface - 105, scraping arm mechanism - 106, net arm connection assembly - 107, net arm mechanism - 108, bridging member - 109, receiving body off-net mechanism - 110, clutch assembly - 111, driving mechanism - 112, swing docking area - 113, swing mechanism - 114, adjustable lifting workbench - 115, cam rotating shaft member - 116, cam member - 117, power member - 121, sliding table - 122, pulling arm assembly - 123, module frame - 124, module sliding table assembly - 125, stroke adjustment assembly - 126, bridge plate - 127, printing head assembly - 128, printing head support plate - 129, ink scraping knife assembly - 130, ink return knife assembly - 131, double-stroke cylinder - 132, workbench member - 133, lifting adjustment assembly - 134, adjustable lifting support arm - 135, dovetail sliding table module - 136, workbench support - 137, first elastic connection unit - 138, second elastic connection unit - 139, eccentric wheel shaft member - 160, eccentric wheel member - 161, slide bar chute - 162, slide bar member - 163, retaining piece - 164, abutting block - 165, auxiliary limiting member - 166, boss member - 167, limiting bar member - 171, tongue fastener - 172. Detailed implementation manners

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figures 1-11 , a dragon-shaped swing arm screen printing machine, including a frame 101, on which an acceptor assembly 102 is provided. The acceptor assembly 102 includes a wing plate member 103. A steering adjustment assembly 104 fixed on the frame 101 is rotatably provided at the lower part of the wing plate member 103; A scraping arm preset interface 105 is provided at the front end of the wing plate member 103, and a scraping arm mechanism 106 is fixed on the scraping arm preset interface 105; A screen arm connection assembly 107 is provided below the scraping arm preset interface 105 on the wing plate member 103, and a screen arm mechanism 108 is connected to the screen arm connection assembly 107; A bridging member 109 extending backward is fixed on the screen arm connection assembly 107. An acceptor off-contact mechanism 110 is provided in the middle of the wing plate member 103. The acceptor off-contact mechanism 110 includes a clutch assembly 111 and a driving mechanism 112 provided on the wing plate member 103. The clutch assembly 111 is linked and cooperated with the bridging member 109 to control the opening and closing actions between the scraping arm mechanism 106 and the screen arm mechanism 108; A swing docking area 113 is provided at the lower rear end of the wing plate member 103, and a swing mechanism 114 fixed on the frame 101 is docked on the swing docking area 113; An adjustable lifting workbench 115 is provided below the screen arm mechanism 108. The swing mechanism 114 and the steering adjustment assembly 104 are linked and cooperated to control the opening and closing between the screen arm mechanism 108 and the adjustable lifting workbench 115; Through the innovative structural integration and linkage design, the dragon-shaped swing arm screen printing machine of the present invention fundamentally solves the core problems of the existing swing arm screen printing machines, such as poor versatility, high cost, low efficiency, and insufficient safety, and realizes the unity of high adaptability, low-cost expansion, high efficiency, and high safety: The dragon-shaped rocker arm screen printer of the present invention has excellent versatility and flexible expandability. First, it is compatible with large and small areas. The "receiving body component 102" is used as the core bearing platform, combined with the "scraper arm preset interface 105", "net arm connection component 107" and the adjustable "swing docking area 113", to provide a stable and flexibly configurable foundation for the scraper arm mechanism 106 and the net arm mechanism 108. This design allows the same main structure (frame 101, receiving body component 102) to be seamlessly adapted to the screen printing needs from smaller areas (such as A4, A3) to larger areas (such as A1, A0 or even larger) by replacing the scraper arm mechanism 106 and the net arm mechanism 108 of different lengths and adjusting the screen size, breaking the specification barrier between small rocker arm machines and large oblique arm machines; The dragon-shaped rocker arm screen printer of the present invention can be expanded through low-cost modularization. The key lies in "not changing the main structure". The frame 101, the receiving body assembly 102, the swing mechanism 114 and the like form the core frame. To expand the printing area, it is only necessary to replace or lengthen the scraper arm mechanism 106, the screen arm mechanism 108 and the corresponding screen and other modular components in a targeted manner. 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. The dragon-shaped swing arm screen printer of the present invention can efficiently load and unload materials. Unlike the vertical lifting screen printer that requires the entire printing platform to be lifted, this solution is based on the swing arm principle. The scraper and screen are installed on the swingable receiving body component 102; when printing, the scraper / screen component swings to the top of the substrate to work; after printing is completed, they are quickly lifted up and swung backward to make way for the substrate area, so that the operator can take and place the substrate very quickly and without obstacles, without waiting for the platform to be lifted, which greatly shortens the single-piece printing cycle and improves the overall production efficiency; The dragon-shaped rocker arm screen printer of the present invention can greatly optimize the cost and safety, and has obvious advantages in manufacturing cost. Compared with the oblique arm screen printer that must adopt a complex, bulky and expensive structure to adapt to a large area, this solution cleverly uses the "bridge 109" to transmit the power of the "receiving body off-screen mechanism 110" (including the clutch assembly 111 and the driving mechanism 112) to the screen arm connecting assembly 107 to control the opening and closing of the screen. This structure is relatively more compact and lightweight, and the required material cost and processing complexity are lower, which effectively reduces the initial manufacturing cost of large-area screen printing equipment; The adjustable lifting workbench 115 can adjust the height in real time according to printing substrates of different thicknesses (such as thin paper cards, thick acrylics or curved workpieces), ensuring that the best printing gap (screen distance) is always maintained between the screen and the printing substrate; this solves the problems of overprinting of thin materials or missed printing of thick materials caused by fixed workbenches in traditional equipment, and significantly improves printing clarity and ink layer uniformity; the lifting of the workbench is linked with the opening and closing of the screen arm, enabling the pressure of the screen on the printing substrate during the scraping process to achieve dynamic self - adaptation, avoiding the risks of local ghosting or screen breakage caused by uneven or inconsistent thickness of the printing substrate; through the linkage mechanism, the operator only needs to adjust the height of the workbench or select a preset opening and closing position of the screen arm, and can synchronously trigger the matching of the opening and closing angle of the screen arm and the position of the workbench, simplifying the complex process of separately adjusting the screen distance, off - contact height, and workbench height in traditional equipment into a single - step operation, improving the machine - setup efficiency; at the same time, seamless loading and unloading can be achieved. When printing is completed, the swing mechanism 114 drives the entire wing plate member 103 to lift (open and close the screen arm), forming a larger unobstructed operation space, and the operator can quickly pick up and place the printing substrate; when starting printing, the workbench accurately rises to the preset height, and the screen arm closes synchronously, realizing a zero - waiting connection of the "pick - up / place - printing" actions; The situation of operators being crushed can be reduced through mechanical interlocking. In one embodiment, a linkage protection mechanism is set up, and through program - set linkage design, it is ensured that the screen arm cannot close when the workbench has not descended to a safe position; conversely, the workbench cannot rise when the screen arm is not fully opened. This rigid interlocking mechanism completely eliminates the risk of the operator's hand being squeezed by the screen frame or the squeegee; The inherent safety of the dragon - shaped swing - arm screen printer of the present invention is greatly improved. Firstly, in terms of structural stability, the screen arm mechanism 108 is directly and stably installed on the wing plate member 103 through the "screen arm connection component 107" and is linked with the off - contact mechanism through the "bridging member 109". The support and movement path of the entire squeegee - screen system are more stable and reliable, reducing the risks of vibration and deformation that may be brought by the long - cantilever structure of large - scale inclined - arm machines; at the same time, the dragon - shaped swing - arm screen printer of the present invention has controllable movement control. The "swing mechanism 114" and the "steering adjustment component 104" ensure that the wing plate member 103 and the entire suspension assembly move within a preset trajectory and angle range. The "receiver off - contact mechanism 110" stably controls the opening and closing actions (off - contact height, angle) of the screen through a cam, avoiding potential safety hazards caused by manual intervention or uncontrollable movement. The optimization of the overall design reduces the risk points for operators to be exposed to moving parts; The dragon-shaped swing arm screen printing machine of the present invention solves the labor problem by creating simple application conditions. Through the simplification of machine adjustment, standardized interface designs such as "scraper arm preset interface 105" and "screen arm connection component 107", and the fine-tuning ability of the "steering adjustment component 104" for the angle of the wing plate part 103, it makes the replacement of scraper arms and screen plates of different specifications and the conventional machine adjustment of angles, pressures, etc. faster, more standardized, and easier to master. At the same time, it reduces the operation threshold. The simplification of equipment operation (especially efficient loading and unloading) and the reduction of machine adjustment difficulty reduce the professional skill requirements for operators relatively. Operators can be on duty after relatively simple training and can operate equipment of different specifications efficiently, which directly alleviates the dependence of the screen printing industry on highly skilled workers and the pain points of "difficulty in employing workers and recruiting workers", and provides a more stable and economical labor solution for enterprises; Through its unique "wing plate part - scraper arm / screen arm interface - bridging off-contact - swinging docking" integrated design, the technical solution of this dragon-shaped swing arm screen printing machine realizes the wide compatibility and low-cost expansion of screen printing equipment in terms of printing area while keeping the main structure unchanged. At the same time, it significantly improves the loading and unloading efficiency, reduces the manufacturing cost, enhances the inherent safety, and finally provides a practical technical basis for solving the labor problem in the industry by simplifying the operation and machine adjustment processes.

[0020] In the embodiment of the present invention, the clutch assembly 111 includes a cam rotating shaft part 116 rotatably installed on the wing plate part 103 and a cam part 117 fixedly installed on the cam rotating shaft part 116. The cam part 117 is in a downward pressing transmission fit with the upper end surface of the bridging part 109; The driving mechanism 112 includes an external power source or a manual operation unit for driving the clutch assembly 111 to rotate; In the dragon-shaped swing arm screen printing machine of the present invention, the clutch assembly 111 is composed of a cam member 117 fixed on the cam rotating shaft member 116, and the cam member 117 directly abuts and cooperates with the bridging member 109. At the same time, the driving mechanism 112 is compatible with an external power source and a manual operation unit, bringing multiple significant advantages: First, it strengthens the structural rigidity and ensures the operation quality. The cam member 117 is fixedly installed on the rotating shaft member to form an integral rigid structure, and transmits power through direct and rigid abutment with the bridging member 109 (instead of flexible connection or indirect transmission), effectively eliminating transmission clearance and elastic deformation, and ensuring the synchronization and stability of the off-net (opening) and on-net (tightening) actions of the mesh arm mechanism 108, providing a solid mechanical foundation for printing quality (such as on-net consistency, ink layer uniformity); Second, it significantly improves the operating reliability. This rigid abutment and cooperation structure has strong anti-interference ability, is not easily affected by vibration or load changes, has a high action repetition efficiency, significantly reduces the failure rate caused by wear, loosening or failure of transmission components, and improves the reliability and durability of the equipment during long-term operation; Third, it enhances the flexibility and safety of the operation mode. The dual-mode design of the driving mechanism 112 is the key - the external power source (such as a motor) supports automated continuous production and improves efficiency; the manual operation unit (such as a handwheel) provides a reliable operation means during power failure, debugging, maintenance or emergency situations. The operator can safely control the opening and closing state of the mesh arm without relying on electricity (for example, when replacing the screen plate, cleaning or dealing with jammed materials), greatly enhancing the inherent safety of the equipment and its adaptability to sudden working conditions; Fourth, it facilitates maintenance and debugging. The structure of the clutch assembly 111 is clear and direct, and its working state (such as the contact point between the cam profile and the bridging member 109) is easy to observe and adjust. Combined with the manual operation mode, the daily maintenance, parameter calibration and fault diagnosis of the equipment are more intuitive and convenient.

[0021] In an embodiment of the present invention, the clutch assembly 111 includes an eccentric wheel shaft member 160 rotatably installed on the wing plate member 103 and an eccentric wheel member 161 fixedly installed on the eccentric wheel shaft member 160. The eccentric wheel 161 is in a lifting transmission cooperation with the lower end surface of the bridging member 109; The driving mechanism 112 includes an external power source or a manual operation unit for rotating the eccentric wheel member 161; In one embodiment, a slide bar chute 162 is formed on the bridging member 109. A slide bar member 163 is arranged in the slide bar chute 162. A stop piece 164 is arranged at the upper end of the slide bar member 163. An abutting block 165 that abuts and cooperates with the eccentric wheel member 161 is fixedly arranged at the lower end of the slide bar member 163. A boss member 167 is formed on the upper end surface of the abutting block 165. An auxiliary limiting member 166 for making the eccentric wheel member 161 abut and cooperate with the abutting block 165 is connected to the abutting block 165.

[0022] The baffle 164 is used to restrain the sliding rod member 163, so that the bridging member 109 and the abutting block 165 are always in mutual contact. With the physical guidance of the convex platform member 167, during the rotation of the eccentric wheel member 161, the convex platform member 167 slides and fits in the slide groove 162 of the slide rod. At the same time, the abutting block 165 abuts and cooperates with the eccentric wheel member 161, thereby controlling the swing of the bridging member 109, and thus controlling the synchronization and stability of the actions of the net arm mechanism 108 leaving the net (opening) and closing the net (tightening); 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 abutting block 165 are always in mutual contact; When the eccentric wheel member 161 rotates, it pushes the abutting block 165 to move along the chute. Its gradually changing curvature design enables the bridging member 109 to obtain an off-net acceleration curve that is fast first and then slow, ensuring a gentle and smooth off-net process and preventing damage to the net; The double-drive interfaces of the external power source motor and the handwheel of the manual operation unit are retained. In case of sudden power failure, the net arm can be manually released through the handwheel for emergency net replacement, net washing and other machine adjustment operations, reducing the downtime; The auxiliary limiting member can be replaced separately to prevent the eccentric wheel member from separating from the abutting block.

[0023] In the embodiment of the present invention, the clutch assembly 111 includes a limiting rod member 171 rotatably installed at one end on the wing plate member 103, and a tongue fastener 172 fixedly provided on the bridging member 109 and buckled and cooperated with the limiting rod member; The driving mechanism 112 includes an external power source or a manual operation unit for driving the limiting rod member 171 to rotate; In the dragon-shaped swing arm screen printing machine of the present invention, the limiting rod member 171 and the tongue fastener 172 are rigidly buckled in a hook shape (non-frictional contact) to form a mechanical forced locking. When the net arm is closed, the limiting rod member rotates to the clamping position, bearing a large-mass pulling force, completely eliminating the risk of accidental opening and closing during operation, and meeting the requirements of heavy-duty operation; The limiting rod member only needs to rotate a small amplitude to complete locking / release, and the operation efficiency is higher; The hard alloy tongue fastener and the quenched limiting rod form a metal interlocking pair, which has a long service life and good repeatability of the opening and closing positions of the net arm; Through the buckling and cooperation of the limiting rod member 171 and the tongue fastener 172, the opening and closing control of the net arm mechanism 108 is simplified. Only by swinging the limiting rod member 171 can the net arm mechanism 108 be opened, and then by lifting the net arm mechanism 108 to reset the bridge plate member to the predetermined position and buckling and cooperating the limiting rod member 171 and the tongue fastener 172, the net arm mechanism 108 can be tightened, saving production costs. At the same time, the operation threshold is reduced. The simplification of the equipment operation and the reduction of the machine adjustment difficulty relatively reduce the professional skill requirements for the operator, lower the post ability standard, and reduce the labor cost.

[0024] In an embodiment of the present invention, the swing mechanism 114 includes a power member 121, a slide table 122 driven by the power member 121, and a pull arm assembly 123 rotatably connected to the slide table 122. The power member 121 drives the slide table 122 to reciprocate in the vertical direction; 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 kinematic pair under the action of the pull arm assembly 123; In the dragon-shaped swing arm screen printing machine of the present invention, through the integrated design of driving the slide table 122 to move up and down by the power member 121, the double-ended rotating pull arm assembly 123, and the swing arm kinematic pair, the optimization of structural reliability, energy efficiency, and safety dimensions is achieved; First of all, the slide table 122 is strictly restricted to move linearly in the vertical direction (realized by precision guide rails or guide columns), eliminating lateral offset or torsional deformation, and ensuring the purity of the power transmission direction from the source; 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 member 103. The linear displacement of the slide table 122 is converted into a constant circular arc swing of the wing plate member 103 through the lever principle. By calculating the pull arm length and the hinge point position, the repeated positioning of the swing angle can be realized, ensuring that the scraper and the screen plate fall at the same position each time, reducing defects such as inaccurate overprinting and ink splashing caused by trajectory deviation. At the same time, the swing angle can be adjusted by adjusting the pull arm length and the hinge point position; When the swing is blocked (such as when an operator's hand is accidentally placed under the screen plate), the swing of the screen arm mechanism 108 is more gentle than the vertical lift of a vertical lift screen printing machine, so the operator has sufficient time to react, greatly improving operation safety; In one embodiment, when the swing is blocked (such as when the screen plate collides with a foreign object), the vertical movement of the slide table 122 is blocked, triggering a pressure sensor, and the power member 121 stops immediately to avoid forced overload damage to the mechanical structure; The double rotating pairs of the pull arm assembly 123 adopt self-lubricating bearings or needle bearings, reducing the friction coefficient, and efficiently converting the vertical driving force of the power member 121 (such as a servo motor or a cylinder) into a swing torque; Physical stoppers are provided at the upper and lower limit positions of the slide table 122 to forcibly limit the maximum swing angle of the wing plate member 103 (such as 0° - 70°) to prevent over-travel impact; The slide table 122 can be directly adapted to electric push rods, servo electric cylinders, gas-liquid booster cylinders, etc., and users can flexibly select according to cost and precision requirements.

[0025] In an embodiment of the present invention, the scraping arm mechanism 106 includes a module frame 124, and the module frame 124 is fixedly arranged on the scraping arm preset interface 105 in a single-end fixed form; Inside the module frame 124, there is a module slide table assembly and a stroke adjustment assembly 126 for adjusting the front-back displacement of the module slide table assembly. A bridge plate 127 is arranged in the module slide table assembly. When the print head assembly 128 is at the foremost position, the bridge plate 127 extends outside the range of the module frame 124. When the print head module is at the foremost position, the entire print head module is outside the range of the module frame of the pneumatic module, so that the module body occupies as little working space as possible, which is convenient for the operator to pick up and place the printing substrate, reducing both its occupied space and not affecting its adjustment and use. At the same time, the double-stroke cylinders on the print head support plate are arranged on both sides of the top surface to avoid the collision between the cylinders and the pneumatic module when the print head module moves back and forth. In one embodiment, the length of the bridge block is greater than the length of the slide base to ensure that when the print head module is at the foremost position, the entire print head module is outside the range of the module frame of the pneumatic module. In the dragon-shaped swing arm screen printing machine of the present invention, the squeegee arm mechanism 106 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. With the precise 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 realizes high-quality front-back positioning, thus greatly improving the stability of the squeegee pressure and the printing trajectory. The single-end fixation of the module frame 124 eliminates the cumulative error of multi-node installation, ensuring the overall rigidity of the scraping system. Combined with the zero-clearance linear motion of the slide table 125 assembly, the print head has no drift vibration during the scraping process, ensuring the uniformity of the ink layer. At the same time, the rapid adjustment of printing parameters can be realized. The stroke adjustment assembly 126 can directly control the horizontal displacement of the print head assembly 128, and different sizes of printing plates can be adapted or the starting and ending positions of the squeegee can be corrected without disassembling parts, improving the machine adjustment efficiency. The modular design enables the overall squeegee arm mechanism 106 to be quickly disassembled, assembled and replaced. The enclosed slide table 125 assembly isolates the erosion of dust and ink, prolonging the service life of key transmission components. At the same time, the standardized interface of the bridge plate 127 supports the plug-and-play upgrade of the print head assembly 128, significantly reducing the later maintenance cost and production stoppage loss.

[0026] In the embodiment of the present invention, a print head support plate 129 is arranged at the front end of the bridge plate 127. The print head assembly 128 includes a scraping knife assembly 130, an ink-returning knife assembly 131 arranged on the print head support plate 129, and a double-stroke cylinder 132 for driving the scraping knife assembly 130 and the ink-returning knife assembly 131. Every two groups of double-stroke cylinders 132 are respectively placed on both sides of the module frame 124. In the dragon-shaped swing arm screen printing machine of the present invention, the print head assembly 128 is driven by a double-sided double-stroke cylinder 132 and an integrated ink scraping / inking knife design, which improves the printing quality, efficiency and reliability. First, the double-sided symmetrically arranged double-stroke cylinders 132 (each group contains an independent air circuit) drive the ink scraping knife and the inking knife assembly 131 in a synchronous push-pull mode, ensuring that the knife body remains horizontal throughout the movement, eliminating the inclination or vibration caused by single-point drive, and controlling the ink scraping pressure deviation within the tolerance range, completely solving the problems of uneven ink layer and dot deformation; Second, the double-stroke cylinder 132 supports the segmented intelligent control of the ink scraping / inking action (such as fast forward - working feed - fast return), shortening the single printing cycle, and through programming, the short stroke (local ink replenishment) or long stroke (full-width printing) can be customized without mechanical modification to adapt to the production of multiple varieties; At the same time, the modular print head support plate 129 integrates the ink scraping / inking double knives, avoiding the assembly error of the traditional split structure, improving the anti-pollution ability of the enclosed cylinder, and cooperating with the quick-disassembly structure of the bridge plate 127, compressing the knife group replacement and maintenance time, greatly reducing the production stoppage loss, and at the same time eliminating the safety risk of manual knife adjustment.

[0027] In the embodiment of the present invention, the adjustable lifting workbench 115 includes a workbench member 133 and a lifting adjustment assembly 134 provided below the workbench member 133. The lifting adjustment assembly 134 includes an adjustable lifting arm 135. A dovetail slide module 136 is provided on the frame 101. A workbench support 137 slidably engaged with the dovetail slide module 136 is fixedly provided on the workbench member 133. The upper end of the adjustable lifting arm 135 is supported and connected to the workbench support 137, and the lower end of the adjustable lifting arm 135 is screwed and engaged with the frame 101; Through the innovative structure of guiding by the dovetail slide module 136, screw connection support of the adjustable lifting arm 135 and modular support connection, the dragon-shaped swing arm screen printing machine of the present invention realizes the optimization of the height adjustment of the printed material. First, the combination of rigidity and stability is realized. The self-locking fit of the inclined surface between the dovetail slide module 136 and the workbench support 137 eliminates the lateral play. The adjustable lifting arm 135 is rigidly screwed to the frame 101 through threads, forming an anti-twisting triangular support structure to ensure the consistency of the screen distance for material printing; Rotating the lifting arm can drive the workbench support 137 to move vertically along the dovetail guide rail (with high adjustment resolution), and different thicknesses of printed materials can be quickly adapted without auxiliary tools, improving the machine adjustment efficiency; The mechanical self-locking structure automatically maintains the position when powered off, eliminating the risks of equipment damage and personal injury caused by accidental settlement, and at the same time, the modular structure shortens the overall replacement time.

[0028] In an embodiment of the present invention, a first elastic connection unit 138 is provided on the back side of the receiving body assembly 102, and second elastic connection units 139 are respectively arranged on both sides of the swinging docking area 113. One end of the first elastic connection unit 138 is fixedly connected to the back side of the receiving body assembly 102, and the other end of the first elastic connection unit 138 is fixedly connected to the machine frame 101. One end of the second elastic connection unit 139 is fixedly connected to the swinging docking area 113, and the other end of the second elastic connection unit 139 is fixedly connected to the machine frame 101; Through the dual elastic structure of setting the first elastic connection unit 138 on the back side of the receiving body assembly 102 and symmetrically arranging the second elastic connection units 139 on both sides of the swinging docking area 113, the dragon-shaped rocker arm screen printing machine of the present invention realizes the intelligent self-resetting and essential safety upgrade of the equipment in the non-operating state: the first elastic unit directly connects the receiving body assembly 102 and the machine frame 101 to provide the main lifting force to drive the wing plate member 103 to automatically lift; the second elastic units are symmetrically arranged on both sides, precisely restricting the swinging trajectory while assisting in lifting to eliminate the risk of eccentric load; the two cooperate to form a three-dimensional elastic support system to ensure that the receiving body assembly 102 (including the squeegee arm / screen arm mechanism 108) automatically returns to the safe inclination angle (natural lifting state) when the machine stops, solving safety hazards such as the falling of the squeegee and the collision of the screen caused by the omission of manual reset; a "fail-safe" protection mechanism is constructed on the premise of low-cost additional consumption, greatly reducing the difficulty of operator safety training and the equipment supervision burden.

[0029] In one embodiment, through bionic industrial design, the dragon-shaped rocker arm screen printing machine of the present invention innovatively integrates the mechanical layouts of the machine frame, the receiving body assembly and the squeegee arm mechanism into the shape of a "dragon head", realizing the deep integration of function and aesthetics, and the brand recognition and market competitiveness are improved. The unique dragon head contour (the machine frame is the dragon neck support structure, the receiving body assembly forms the skull contour, and the squeegee arm mechanism is shaped like a protruding dragon jaw) breaks the stereotype of traditional screen printing equipment, improves the visual recognition, and helps the enterprise establish a differentiated brand image in the high-end equipment market; The streamline curved surface of the dragon head shape naturally guides the operator's line of sight to focus on the core printing area. The arc-shaped squeegee arm mechanism reduces the sense of oppression in the working space, and cooperates with the rear-tilted "dragon neck" machine frame to reserve sufficient operation channels, reducing the operation fatigue; Converting the cold mechanical state into a cultural symbol, it conforms to the upgrading trend of Chinese intelligent manufacturing aesthetics. At the same time, it improves the user's trust and operation pleasure through morphological psychology, indirectly promoting the growth of the high-value space of the equipment.

[0030] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A dragon-shaped swing arm screen printing machine, characterized in that, It comprises a frame (101), a receiving body assembly (102) is arranged on the frame (101), the receiving body assembly (102) comprises a wing plate member (103), and a steering adjustment assembly (104) fixedly arranged on the frame (101) is rotatably arranged at the lower part of the wing plate member (103); A scraper arm preset interface (105) is provided at the front end of the wing plate member (103), and a scraper arm mechanism (106) is fixedly provided on the scraper arm preset interface (105); A net arm connection assembly (107) is provided on the wing plate member (103) below the scraper arm preset interface (105), and a net arm mechanism (108) is connected to the net arm connection assembly (107); A rearwardly extending bridge member (109) is fixedly provided on the net arm connection assembly (107); a receiving body off-net mechanism (110) is provided in the middle of the wing plate member (103); the receiving body off-net mechanism (110) comprises a clutch assembly (111) and a driving mechanism (112) provided on the wing plate member (103); the clutch assembly (111) and the bridge member (109) are linked to control the opening and closing action between the scraper arm mechanism (106) and the net arm mechanism (108); A swing docking area (113) is provided at the rear lower end of the wing plate member (103), and a swing mechanism (114) fixedly mounted on the frame (101) is docked on the swing docking area (113); An adjustable lifting workbench (115) is provided below the net arm mechanism (108), and the swing mechanism (114) and the steering adjustment assembly (104) are linked to control the opening and closing between the net arm mechanism (108) and the adjustable lifting workbench (115).

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

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

4. A dragon-shaped swing arm screen printing machine according to claim 1, characterized in that, The clutch assembly (111) comprises a limiting rod (171) with one end rotatably mounted on the wing plate (103), and a tongue fastener (172) is fixedly provided on the bridge member (109) and is engaged with the limiting rod; The driving mechanism (112) comprises an external power source or a manual operation unit for driving the limiting rod (171) to rotate.

5. A dragon-shaped swing arm screen printing machine according to claim 3, characterized in that, A slide bar groove (162) is provided on the bridge member (109), a slide bar member (163) is provided in the slide bar groove (162), a blocking piece (164) is provided at the upper end of the slide bar member (163), an abutment block (165) abutting against the eccentric wheel member (161) is fixedly provided at the lower end of the slide bar member (163), a boss member (167) is formed on the upper end surface of the abutment block (165), and an auxiliary limiting member (166) is connected to the abutment block (165) so that the eccentric wheel member (161) and the abutment block (165) abut against each other.

6. A dragon-shaped swing arm screen printing machine according to any one of claims 1-5, characterized in that, The swing mechanism (114) comprises a power member (121), a slide table (122) driven by the power member (121), and a pull arm assembly (123) rotatably connected to the slide table (122), wherein the power member (121) drives the slide table (122) to reciprocate in an up-and-down direction; One end of the pulling arm assembly (123) is rotatably connected to the slide (122), and the other end of the pulling 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 kinematic pair under the action of the pulling arm assembly (123).

7. A dragon-shaped swing arm screen printing machine according to claim 6, characterized in that, The scraper arm mechanism (106) comprises a module frame (124), and the module frame (124) is fixedly mounted on the scraper arm preset interface (105) in a single-end fixed manner; A module slide assembly (125) and a stroke adjustment assembly (126) for adjusting the front and rear displacement of the module slide assembly (125) are arranged in the module slide assembly (125). A bridge plate (127) is arranged in the module slide assembly (125). A print head assembly (128) is arranged at the front end of the bridge plate (127). When the print head assembly (128) is at the frontmost position, the bridge plate (127) extends out of the module frame.

8. The dragon-shaped swing arm screen printing machine according to claim 7, characterized in that, A print head support plate (129) is provided at the front end of the bridge plate (127). The print head assembly (128) comprises an ink scraper assembly (130) and an ink return knife assembly (131) arranged on the print head support plate (129), and a double-stroke cylinder (132) for driving the ink scraper assembly (130) and the ink return knife assembly (131). Each two sets of double-stroke cylinders (132) are respectively placed on both sides of the module frame (124).

9. A dragon-shaped swing arm screen printing machine according to claim 1 or 2 or 3 or 4 or 5 or 7 or 8, characterized in that, The adjustable lifting workbench (115) comprises a workbench member (133) and a lifting adjustment assembly (134) arranged below the workbench member (133); the lifting adjustment assembly (134) comprises an adjustable lifting support arm (135); a dovetail slide module (136) is arranged on the frame (101); a workbench bracket (137) slidably matched with the dovetail slide module (136) is fixedly arranged on the workbench member (133); the upper end of the adjustable lifting support arm (135) is supported and transferred with the workbench bracket (137); and the lower end of the adjustable lifting support arm (135) is screwed and matched with the frame (101).

10. A dragon-shaped swing arm screen printing machine according to claim 9, characterized in that, The back side of the receiving component (102) is provided with a first elastic connection unit (138), and second elastic connection units (139) are respectively arranged on both sides of the swing docking area (113). One end of the first elastic connection unit (138) is fixedly connected to the back side of the receiving component (102), the other end of the first elastic connection unit (138) is fixedly connected to the frame (101), one end of the second elastic connection unit (139) is fixedly connected to the swing docking area (113), and the other end of the second elastic connection unit (139) is fixedly connected to the frame (101).

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