Printing device

Abstract

The application relates to the printing technical field and particularly discloses a printing device. The printing device comprises a conveying mechanism for conveying a workpiece, a positioning mechanism arranged on the conveying mechanism and used for positioning the workpiece, a printing mechanism comprising a fixing base, a printing assembly, a clamping assembly and a driving assembly, the fixing base is connected to the positioning mechanism, the printing assembly comprises a sliding base and a printing piece, the sliding base is slidingly connected to the fixing base, the printing piece is arranged at one end of the sliding base close to the conveying mechanism, the clamping assembly is connected to the fixing base, the clamping assembly is used for clamping the sliding base to limit the movement of the sliding base close to the conveying mechanism, the driving assembly is connected to the fixing base, the driving assembly is used for driving the clamping assembly to rotate away from the sliding base, so that the sliding base drives the printing piece to move towards the conveying mechanism, and then the printing piece abuts against the workpiece, and the driving assembly is also used for driving the sliding base to move away from the conveying mechanism. The printing device can automatically print the workpiece, and the printing precision is high and the stability is good.

Description

Technical Field

[0001] This application relates to the field of printing technology, and more specifically to a printing apparatus. Background Technology

[0002] In industries such as electronics manufacturing, packaging, and printing, it is often necessary to print traceable QR codes, brand logos, technical parameters, and other graphic information on the surface of workpieces (such as printed circuit boards, casings, and labels). Current production lines primarily rely on manual or semi-automatic methods: operators first place the workpiece at the printing station, then use a hand-held squeegee or start a semi-automatic screen printing machine to complete the printing, followed by manual unloading. This method has the following drawbacks: high human involvement, cycle time per piece is greatly affected by operator skill level, resulting in low overall efficiency; printing quality is highly dependent on operator skill, and novices are prone to producing defective products such as ghosting, ink shortages, and misalignment; labor and training costs are continuously rising, and it does not align with the trend of production line flexibility and unmanned upgrades. Utility Model Content

[0003] In view of the above, it is necessary to propose a printing device that can automatically print on workpieces with high printing accuracy and good stability.

[0004] This application provides a printing apparatus, including: a transmission mechanism for transmitting a workpiece along a first direction; a positioning mechanism disposed on the transmission mechanism for positioning the workpiece; and a printing mechanism including a fixed base, a printing component, a snap-fit ​​component, and a driving component. The fixed base is connected to the side of the positioning mechanism away from the transmission mechanism. The printing component includes a sliding seat and a printed element. The sliding seat is slidably connected to the fixed base along a second direction perpendicular to the first direction. The printed element is disposed at one end of the sliding seat near the transmission mechanism. The snap-fit ​​component is connected to the fixed base and disposed adjacent to the sliding seat along the first direction. The snap-fit ​​component is used to snap the sliding seat to restrict the sliding seat from moving closer to the transmission mechanism. The driving component is connected to the fixed base and disposed on the side of the snap-fit ​​component away from the sliding seat. The driving component is used to drive the snap-fit ​​component to rotate away from the sliding seat, so that the sliding seat drives the printed element to move toward the transmission mechanism, thereby causing the printed element to abut against the workpiece. The driving component is also used to drive the sliding seat to move away from the transmission mechanism along the second direction.

[0005] The aforementioned printing apparatus uses a conveying mechanism to transport workpieces, a positioning mechanism to position the workpieces on the conveying mechanism, and a printing mechanism to print on the workpieces on the conveying mechanism. During printing, the workpiece is fixed below the printing mechanism by the positioning mechanism. The drive component drives the locking component to release the sliding seat of the printing component. The sliding seat moves the printed part toward the workpiece until it touches the workpiece, completing the printing. Then, the drive component drives the sliding seat away from the workpiece, and the locking component locks the sliding seat after it moves away from the workpiece, restricting its movement toward the conveying mechanism. This reliably locks the printing component in the non-printing state, preventing accidental drops. After the positioning mechanism releases the workpiece, the conveying mechanism transports the printed workpiece backward and moves the next workpiece below the printing mechanism. This printing apparatus can automatically print on workpieces. During printing, the positioning mechanism positions the workpiece, resulting in high printing accuracy. The sliding seat moves the printed part to touch the workpiece, avoiding overpressure and ghosting caused by direct drive sources such as cylinders directly driving the printed part to touch the workpiece, thus ensuring good printing stability.

[0006] In some embodiments, the sliding seat is provided with a snap-fit ​​protrusion, which is located at one end of the sliding seat near the transmission mechanism and near the snap-fit ​​assembly. The snap-fit ​​assembly includes a snap-fit ​​member and a first elastic member. The snap-fit ​​member is rotatably connected to the fixed seat about a third direction perpendicular to the first direction and the second direction. The snap-fit ​​member includes a snap-fit ​​portion and a toggle portion disposed opposite to each other. The snap-fit ​​portion is located near the transmission mechanism and is adapted to the snap-fit ​​protrusion. The snap-fit ​​portion is used to abut against the snap-fit ​​protrusion to restrict the movement of the sliding seat near the transmission mechanism. The toggle portion is located away from the transmission mechanism and tilted towards the drive assembly. The drive assembly is used to push the toggle portion to rotate near the sliding seat to drive the snap-fit ​​portion to rotate away from the snap-fit ​​protrusion. The first elastic member is located on the side of the snap-fit ​​portion opposite to the snap-fit ​​protrusion and is used to push the snap-fit ​​portion to move near the sliding seat.

[0007] In some embodiments, the snap-fit ​​protrusion has a first inclined surface on the side away from the transmission mechanism. The first inclined surface gradually approaches the sliding seat in a direction away from the transmission mechanism. The snap-fit ​​portion has a second inclined surface adapted to the first inclined surface. When the driving component drives the sliding seat away from the transmission mechanism, the snap-fit ​​protrusion pushes against the second inclined surface through the first inclined surface to make the snap-fit ​​portion move away from the snap-fit ​​protrusion.

[0008] In some embodiments, the drive assembly includes a rotary drive member and a first drive rod. The rotary drive member is connected to the fixed base, and the first drive rod is connected to the rotary drive member. The extension direction of the first drive rod is perpendicular to the third direction, and the first drive rod corresponds to the position of the actuating part in the third direction. The rotary drive member is used to drive the first drive rod to rotate around the third direction, so that when the first drive rod abuts the actuating part, it pushes the actuating part closer to the sliding base.

[0009] In some embodiments, the sliding seat further includes a push-off protrusion disposed on the side of the sliding seat near the snap-fit ​​assembly, and the push-off protrusion and the snap-fit ​​protrusion are spaced apart along a direction away from the transmission mechanism; the driving assembly further includes a second driving rod connected to the rotary driving member and disposed adjacent to the first driving rod along the third direction, the second driving rod corresponding to the position of the push-off protrusion in the third direction, the extension direction of the second driving rod being perpendicular to the third direction, and the extension direction of the second driving rod intersecting the extension direction of the first driving rod, the second driving rod being used to rotate around the third direction under the drive of the rotary driving member, so as to drive the push-off protrusion to move away from the transmission mechanism, thereby driving the sliding seat and the printed part to move away from the transmission mechanism.

[0010] In some embodiments, the printing mechanism further includes a limiting pin connected to the fixed base and disposed near the side of the sliding seat opposite to the snap-fit ​​assembly. A limiting protrusion is provided on the side of the sliding seat opposite to the snap-fit ​​assembly. The limiting protrusion is disposed opposite to the limiting pin along the first direction. The limiting pin abuts against the limiting protrusion when the sliding seat moves toward the transmission mechanism to limit the sliding seat. The printing mechanism also includes a second elastic member, one end of which abuts against the side of the sliding seat opposite to the transmission mechanism, and the other end of which abuts against the fixed base. The second elastic member is used to push the sliding seat toward the transmission mechanism.

[0011] In some embodiments, the positioning mechanism includes a support base and a stop assembly. The support base is connected to the transmission mechanism. The stop assembly includes a stop drive and a stop member. The stop drive is connected to the support base, and the stop member is connected to the stop drive. The stop drive is used to drive the stop member closer to or further away from the transmission mechanism to stop or release the workpiece.

[0012] In some embodiments, the positioning mechanism further includes a first sensor and a second sensor. The first sensor is connected to the support base and disposed on the front side of the stop drive member along the first direction. The first sensor is used to detect the position of the workpiece. The second sensor is disposed on the side of the stop member used to abut against the workpiece. The second sensor is used to detect whether the stop member abuts against the workpiece.

[0013] In some embodiments, the positioning mechanism further includes two guide members, both of which are disposed on the side of the support base near the transmission mechanism. The two guide members are spaced apart along a third direction perpendicular to the first direction and the second direction. Each of the two guide members has a guide portion at the end away from the stop drive member. The two guide portions gradually approach each other along the first direction. The two guide members are used to guide the workpiece.

[0014] In some embodiments, the positioning mechanism further includes a pushing component, which includes a pushing drive and a pushing member. The pushing drive is connected to the support and disposed near one of the guides. The pushing member is connected to the pushing drive and is used to drive the pushing member to move along the third direction, so that the pushing member pushes the workpiece against the other guide, thereby positioning the workpiece in the third direction. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the printing apparatus provided in an embodiment of this application.

[0016] Figure 2 for Figure 1 The diagram shows a partial structural schematic of the positioning mechanism and printing mechanism of the printing apparatus.

[0017] Figure 3 for Figure 1 A schematic diagram of the printing mechanism of the printing apparatus shown before printing.

[0018] Figure 4 for Figure 3 The diagram shows the state of the printing mechanism during printing.

[0019] Figure 5 for Figure 4 The diagram shows the state of the printing mechanism when it is reset.

[0020] Explanation of main component symbols: Printing device 100, transmission mechanism 10, positioning mechanism 20, support base 21, stop assembly 22, stop drive 221, stop 222, first sensor 23, second sensor 24, guide 25, guide part 251, pushing assembly 26, pushing drive 261, pushing part 262, printing mechanism 30, fixed base 31, printing assembly 32, sliding base 321, snap-fit ​​protrusion 3211, first inclined surface 3211a, pushing protrusion 3212, limiting protrusion 3213, printed part 322, snap-fit ​​assembly 33, snap-fit ​​part 331, snap-fit ​​part 3311, second inclined surface 3311a, actuating part 3312, first elastic element 332, drive assembly 34, rotation drive 341, first drive rod 342, second drive rod 343, limiting pin 35, second elastic element 36, workpiece 200. Detailed Implementation

[0021] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0022] In the description of this application, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, it should be noted that "a plurality of" means two or more, unless otherwise explicitly specified.

[0023] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a connection that allows communication between the two components; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0024] The embodiments of this application will be further described below with reference to the accompanying drawings. To facilitate understanding and explanation of the embodiments of this application, a three-dimensional coordinate system is established in some of the drawings, with the X-axis direction as the first direction, the Z-axis direction as the second direction, and the Y-axis direction as the third direction. The X-axis direction, Y-axis direction, and Z-axis direction are perpendicular to each other.

[0025] Please see Figure 1 , Figure 2 and Figure 3 This application provides a printing apparatus 100 for printing on a workpiece 200, which can be the casing, circuit board, or outer packaging of an electronic product, etc. The printing content can include QR codes, product logos, parameter information, etc. The printing apparatus 100 includes a transmission mechanism 10, a positioning mechanism 20, and a printing mechanism 30.

[0026] Specifically, the transmission mechanism 10 is used to transmit the workpiece 200 along the first direction. The transmission mechanism 10 can be a production line device that can transmit the workpiece 200 along the first direction. The specific structure is not limited here.

[0027] The positioning mechanism 20 is mounted on the transmission mechanism 10 and is used to position the workpiece 200. It can be understood that when the transmission mechanism 10 transmits the workpiece 200 to the corresponding position of the positioning mechanism 20, the positioning mechanism 20 can position the workpiece 200. After printing is completed, the positioning mechanism 20 releases the workpiece 200, and the transmission mechanism 10 continues to transmit the workpiece 200.

[0028] The printing mechanism 30 includes a fixed base 31, a printing component 32, a snap-fit ​​component 33, and a drive component 34. The fixed base 31 is connected to the side of the positioning mechanism 20 away from the transmission mechanism 10. The printing component 32 includes a sliding base 321 and a printed element 322. The sliding base 321 is slidably connected to the fixed base 31 along a second direction. The printed element 322 is disposed at the end of the sliding base 321 near the transmission mechanism 10. The snap-fit ​​component 33 is connected to the fixed base 31 and is disposed adjacent to the sliding base 321 along a first direction. The snap-fit ​​component 33 is used to snap the sliding base 321 to restrict the movement of the sliding base 321 near the transmission mechanism 10. Please refer to [link to relevant documentation]. Figure 4 and Figure 5 The drive assembly 34 is connected to the fixed base 31 and is located on the side of the snap-fit ​​assembly 33 away from the sliding base 321. The drive assembly 34 is used to drive the snap-fit ​​assembly 33 to rotate away from the sliding base 321, so that the sliding base 321 drives the printed part 322 to move toward the transmission mechanism 10, thereby causing the printed part 322 to abut against the workpiece 200. The drive assembly 34 is also used to drive the sliding base 321 to move away from the transmission mechanism 10 in a second direction.

[0029] The fixed base 31 is generally a plate-shaped structure, extending along the second direction. The sliding base 321 is also generally a plate-shaped structure, and the sliding base 321 and the fixed base 31 can be slidably connected via a slide rail or similar structure. The printing component 322 may include an ink cartridge and a print head. The ink cartridge provides printing ink to the print head, which can print the desired pattern onto the workpiece 200. By providing a locking component 33, the printing component 32 can be reliably locked in the non-printing state, preventing it from accidentally falling due to gravity or vibration, thus ensuring stability in standby mode. When printing is required, the drive component 34 first precisely drives the locking component 33 to release the lock. Subsequently, the sliding base 321 and the printing component 322 can move towards the workpiece 200 under the action of gravity. This ensures that the downward pressing action of the printing component 322 is both rapid and does not damage the workpiece 200 or the printing component 322 due to overshoot caused by active drive, thus ensuring the stability and consistency of printing pressure.

[0030] The printing apparatus 100 provided in this application embodiment can transport a workpiece 200 via a transmission mechanism 10, position the workpiece 200 on the transmission mechanism 10 via a positioning mechanism 20, and print on the workpiece 200 on the transmission mechanism 10 via a printing mechanism 30. During printing, the workpiece 200 is fixed below the printing mechanism 30 by the positioning mechanism 20. The drive component 34 drives the locking component 33 to release the sliding seat 321 of the printing component 32. The sliding seat 321 drives the printed part 322 to move toward the workpiece 200 until the printed part 322 abuts against the workpiece 200, completing the printing of the workpiece 200. Then, the drive component 34 drives the sliding seat 321 away from the workpiece 200. The locking component 33 can lock the sliding seat 321 away from the workpiece 200 to restrict the movement of the sliding seat 321 toward the transmission mechanism 10, thereby reliably locking the printing component 32 in the non-printing state and preventing it from falling accidentally. After the positioning mechanism 20 releases the workpiece 200, the transmission mechanism 10 transmits the printed workpiece 200 backward and moves the next workpiece 200 below the printing mechanism 30. The printing apparatus 100 provided in this embodiment can automatically print on the workpiece 200. During printing, the positioning mechanism 20 positions the workpiece 200, resulting in high printing accuracy. During printing, the sliding seat 321 drives the printed part 322 to abut against the workpiece 200, avoiding overpressure, ghosting, and other phenomena caused by direct drive sources such as cylinders directly driving the printed part 322 to abut against the workpiece 200, thus ensuring good printing stability.

[0031] In some embodiments, see Figure 1 and Figure 3The sliding seat 321 is provided with a snap-fit ​​protrusion 3211, which is located at one end of the sliding seat 321 near the transmission mechanism 10 and near the snap-fit ​​component 33. The latching assembly 33 includes a latching member 331 and a first elastic member 332. The latching member 331 is rotatably connected to the fixed base 31 about a third direction perpendicular to the first and second directions. The latching member 331 includes a latching portion 3311 and a toggle portion 3312 disposed opposite to each other. The latching portion 3311 is disposed close to the transmission mechanism 10 and is adapted to the latching protrusion 3211. The latching portion 3311 is used to abut against the latching protrusion 3211 to restrict the movement of the sliding base 321 close to the transmission mechanism 10. The toggle portion 3312 is disposed away from the transmission mechanism 10 and is inclined toward the drive assembly 34. The drive assembly 34 is used to push the toggle portion 3312 to rotate close to the sliding base 321 to drive the latching portion 3311 to rotate away from the latching protrusion 3211. The first elastic member 332 is disposed on the side of the latching portion 3311 away from the latching protrusion 3211. The first elastic member 332 is used to push the latching portion 3311 to move close to the sliding base 321.

[0032] The engaging portion 3311 is generally a block or plate-shaped structure. It can extend under the engaging protrusion 3211 to engage with the engaging protrusion 3211 of the sliding seat 321. The actuating portion 3312 is generally a rod-shaped structure. When the engaging portion 3311 engages with the engaging protrusion 3211, the actuating portion 3312 tilts towards the drive assembly 34. Thus, when the drive assembly 34 drives the actuating portion 3312 to move closer to the sliding seat 321, the actuating portion 3312 can avoid contact with the sliding seat 321, preventing the engaging member 331 from failing to rotate. The first elastic member 332 can be a spring, etc. It is understood that one end of the first elastic member 332 abuts against the side of the engaging portion 3311 away from the sliding seat 321, and the other end abuts against the fixed seat 31, or the support seat 21 mentioned below. Thus, by providing the first elastic element 332, the drive assembly 34 can push the latching part 3311 back to its original position after releasing the toggle part 3312.

[0033] In some embodiments, see Figure 1 , Figure 3 and Figure 5The snap-fit ​​protrusion 3211 has a first inclined surface 3211a on the side facing away from the transmission mechanism 10. The first inclined surface 3211a gradually approaches the sliding seat 321 in a direction away from the transmission mechanism 10. The snap-fit ​​part 3311 has a second inclined surface 3311a that matches the first inclined surface 3211a. When the drive assembly 34 drives the sliding seat 321 away from the transmission mechanism 10, the snap-fit ​​protrusion 3211 pushes against the second inclined surface 3311a through the first inclined surface 3211a, causing the snap-fit ​​part 3311 to move away from the snap-fit ​​protrusion 3211. It can be understood that after the drive assembly 34 drives the snap-fit ​​part 3311 to rotate away from the snap-fit ​​protrusion 3211, the snap-fit ​​part 331 releases the sliding seat 321, and the sliding seat 321 drives the printed part 322 to move toward the workpiece 200, thereby printing on the workpiece 200. To improve work efficiency, the drive assembly 34 continues to move and releases the actuating part 3312. The first elastic member 332 pushes the locking part 3311 toward the sliding seat 321, and the locking part 3311 abuts against the side of the sliding seat 321. After printing, the drive assembly 34 drives the sliding seat 321 away from the workpiece 200. During the movement of the sliding seat 321 away from the workpiece 200, the first inclined surface 3211a abuts against the second inclined surface 3311a. Through the cooperation of the inclined surfaces, the locking part 3311 is pushed away from the locking protrusion 3211, so that the locking part 3311 avoids the locking protrusion 3211 until the first inclined surface 3211a and the second inclined surface 3311a are misaligned. Under the push of the first elastic member 332, the locking part 3311 moves to the underside of the locking protrusion 3211 and then locks against the locking protrusion 3211.

[0034] In some embodiments, see Figure 3 and Figure 4The driving assembly 34 includes a rotary driving member 341 and a first driving rod 342. The rotary driving member 341 is connected to the fixed base 31, and the first driving rod 342 is connected to the rotary driving member 341. The extension direction of the first driving rod 342 is perpendicular to the third direction, and the first driving rod 342 corresponds to the position of the actuating part 3312 in the third direction. The rotary driving member 341 is used to drive the first driving rod 342 to rotate around the third direction, so that when the first driving rod 342 abuts against the actuating part 3312, it pushes the actuating part 3312 closer to the sliding seat 321. The rotary driving member 341 can be a rotary cylinder, a rotary motor, etc. In this embodiment, the snap-fit ​​assembly 33 is disposed on the right side of the printing assembly 32, and the driving assembly 34 is disposed on the right side of the snap-fit ​​assembly 33. Therefore, the rotary driving member 341 drives the first driving rod 342 to rotate clockwise around the third direction. In other embodiments, for example, the latching component 33 is disposed on the left side of the printing component 32, and the driving component 34 is disposed on the left side of the latching component 33. The rotational drive 341 can drive the first drive rod 342 to rotate counterclockwise around a third direction. By driving the first drive rod 342 to rotate through the rotational drive 341, it pushes against the actuating part 3312. This rotational motion control is precise and the stroke is stable, which can ensure that the amplitude and force of each unlocking action are consistent, thereby improving the repeatability and reliability of the printing process.

[0035] In some embodiments, see Figure 3 and Figure 5The sliding seat 321 also includes a push protrusion 3212, which is disposed on the side of the sliding seat 321 near the snap-fit ​​assembly 33, and the push protrusion 3212 and the snap-fit ​​protrusion 3211 are spaced apart along the direction away from the transmission mechanism 10. The drive assembly 34 also includes a second drive rod 343, which is connected to the rotary drive member 341 and is adjacent to the first drive rod 342 along a third direction. The second drive rod 343 corresponds to the push protrusion 3212 in the third direction. The extension direction of the second drive rod 343 is perpendicular to the third direction and intersects with the extension direction of the first drive rod 342. The second drive rod 343 is used to rotate around the third direction under the drive of the rotary drive member 341 to drive the push protrusion 3212 away from the transmission mechanism 10, thereby driving the sliding seat 321 and the printed part 322 away from the transmission mechanism 10. Immediately, the length of the second drive rod 343 is greater than the length of the first drive rod 342. By arranging the first drive rod 342 (responsible for unlocking) and the second drive rod 343 (responsible for lifting) side by side on the output shaft of the same rotary drive member 341, a single power source can drive two completely different actions sequentially and in stages. In the first stage of rotation, the first drive rod 342 first contacts and actuates the actuating part 3312 of the latching member 331, thereby unlocking. In the second stage of rotation, after printing is completed, the second drive rod 343 contacts and pushes the abutment protrusion 3212 of the sliding seat 321, thereby lifting the sliding seat 321.

[0036] In some embodiments, see Figure 1 and Figure 4 The printing mechanism 30 also includes a limiting pin 35, which is connected to the fixed base 31 and located near the sliding base 321 on the side opposite to the latching assembly 33. The sliding base 321 on the side opposite to the latching assembly 33 has a limiting protrusion 3213, which is positioned opposite to the limiting pin 35 along a first direction. The limiting pin 35 abuts against the limiting protrusion 3213 when the sliding base 321 moves toward the transmission mechanism 10, thus limiting the sliding base 321. Through the interaction of the limiting pin 35 and the limiting protrusion 3213 on the sliding base 321, the final downward position of the printed part 322 can be limited. Regardless of the speed of the unlocking action of the drive assembly 34 or the magnitude of the falling inertia of the printing assembly 32, the final downward depth of the printed part 322 is strictly limited by the contact surface between the limiting pin 35 and the limiting protrusion 3213. This ensures consistent downward depth for each print, thereby guaranteeing consistent printing pressure, which is crucial for achieving stable and uniform printing quality. It can also prevent overpressure, effectively avoiding problems such as damage to the workpiece 200, deformation of the printed part 322, or blurry printing patterns caused by excessive pressure on the printed part 322.

[0037] The printing mechanism 30 also includes a second elastic element 36. One end of the second elastic element 36 abuts against the side of the sliding seat 321 opposite to the transmission mechanism 10, and the other end abuts against the fixed seat 31. The second elastic element 36 is used to push the sliding seat 321 closer to the transmission mechanism 10. The second elastic element 36 can be a spring, etc., and provides a controllable and flexible active downward pressure for the falling movement of the printing assembly 32. By selecting springs with different elastic coefficients, the pressure when the printed part 322 contacts the workpiece 200 can be precisely set and adjusted to best suit the current process requirements. At the moment of printing contact, the spring can provide a buffer and maintain a relatively constant pressure, which helps the ink to transfer evenly. It is gentler and more stable than pure gravity impact, thus significantly improving the consistency of printing quality. The sliding seat 321 may experience frictional resistance when moving on the fixed seat 31. The positive force provided by the second elastic element 36 can ensure that the sliding seat 321 can fall reliably and quickly after being unlocked, avoiding problems such as jamming, slow falling or uneven falling caused by resistance, and improving the reliability of equipment operation.

[0038] In some embodiments, see Figure 1 and Figure 2 The positioning mechanism 20 includes a support base 21 and a stop assembly 22. The support base 21 is connected to the transmission mechanism 10. The stop assembly 22 includes a stop drive 221 and a stop 222. The stop drive 221 is connected to the support base 21, and the stop 222 is connected to the stop drive 221. The stop drive 221 drives the stop 222 to move closer to or further away from the transmission mechanism 10 to stop or release the workpiece 200. The support base 21 is generally a plate-like structure, mounted above the transmission mechanism 10. It can be understood that the fixed seat 31 of the printing mechanism 30 is connected to the support base 21. The support base 21 may have through holes for the sliding seat 321 and the printed workpiece 322 to move. The stop drive 221 can be a cylinder, etc., and the stop 222 can be a block or plate-like structure. When the workpiece 200 needs to stop printing, the stop 222 extends; after printing is completed, the stop 222 retracts, releasing the workpiece 200. The stop 222 provides a clear mechanical stopping surface, ensuring that the workpiece 200 is stopped in exactly the same position every time, providing a highly repeatable reference position for subsequent printing processes.

[0039] In some embodiments, see Figure 1 and Figure 2The positioning mechanism 20 also includes a first sensor 23 and a second sensor 24. The first sensor 23 is connected to the support base 21 and disposed on the front side of the stop drive member 221 along a first direction. The first sensor 23 is used to detect the position of the workpiece 200. The second sensor 24 is disposed on the side of the stop member 222 that abuts against the workpiece 200. The second sensor 24 is used to detect whether the stop member 222 abuts against the workpiece 200. The first sensor 23 can be an infrared sensor, etc., and is disposed facing the front side of the stop member 222 to detect whether the workpiece 200 has reached a predetermined approximate area. The second sensor 24 can be a contact switch, etc., used to detect whether the workpiece 200 abuts against the stop member 222 to determine the accurate position of the workpiece 200.

[0040] In some embodiments, see Figure 1 and Figure 2 The positioning mechanism 20 also includes two guide members 25, both of which are located on the side of the support base 21 near the transmission mechanism 10. The two guide members 25 are spaced apart along a third direction. Each guide member 25 has a guide portion 251 at its end away from the stop drive member 221. The two guide portions 251 gradually approach each other along a first direction. The two guide members 25 are used to guide the workpiece 200. The two spaced-apart guide members 25 form a funnel-shaped guide channel. Regardless of any deviation in the third direction when the workpiece 200 comes from the transmission mechanism 10, the front end of the workpiece 200 will be guided to the center position of the channel by the guide portion 251 when it enters the gradually converging guide portion 251. This ensures that the workpiece 200 is constrained within a smaller, controllable range in the third direction before contacting the stop member 222, facilitating subsequent precise positioning. In automated transmission, the workpiece 200 inevitably experiences slight skew or positional deviation; the presence of the guide members 25 compensates for this inconsistency between transmission and incoming materials. Even if workpiece 200 is not perfectly aligned with the center, it can still be successfully guided into the correct positioning area, improving the reliability and stability of the entire equipment operation and reducing the accuracy requirements of the upstream transmission links.

[0041] In some embodiments, see Figure 1 and Figure 2The positioning mechanism 20 also includes a pushing assembly 26, which includes a pushing drive 261 and a pushing member 262. The pushing drive 261 is connected to the support base 21 and is positioned near one of the guide members 25. The pushing member 262 is connected to the pushing drive 261. The pushing drive 261 drives the pushing member 262 to move in a third direction, so that the pushing member 262 pushes the workpiece 200 against the other guide member 25, thereby positioning the workpiece 200 in the third direction. The pushing drive 261 can be a cylinder, etc., and the pushing member 262 can be a rod-shaped or plate-shaped structure. To prevent interference between the pushing member 262 and the guide member 25, the guide member 25 positioned near the pushing drive 261 can have a through hole, allowing the pushing member 262 to pass through the through hole and push the workpiece 200 between the two guide members 25. By setting the pushing assembly 26, the workpiece 200 can be accurately positioned in a third direction, improving printing accuracy and thus printing quality.

[0042] The operation of the printing apparatus 100 provided in this embodiment is roughly as follows: First, the transfer mechanism 10 transfers the workpiece 200. When the workpiece 200 moves to the position of the two guide members 25, it is guided towards the center by the guide portions 251 of the two guide members 25. When the workpiece 200 moves to a position close to the stop assembly 22 and the first sensor 23 detects the workpiece 200, the transfer mechanism 10 stops moving. The stop drive member 221 drives the stop member 222 to move toward the transfer mechanism 10 until the stop member 222 corresponds to the workpiece 200 in the first direction. Then the transfer mechanism 10 continues to transfer the workpiece 200 until the workpiece 200 abuts against the stop member 222. After the second sensor 24 detects the workpiece 200, the transfer mechanism 10 stops running. The push drive member 261 drives the push member 262 to push the workpiece 200 against the guide member 25, thereby positioning the workpiece 200 in a third direction.

[0043] Then, the rotary drive 341 drives the first drive rod 342 and the second drive rod 343 to rotate. The first drive first pushes the actuating part 3312 of the latching part 331 closer to the sliding seat 321, thereby causing the latching part 3311 to rotate away from the latching protrusion 3211 of the sliding seat 321. The second elastic member 36 pushes the sliding seat 321 towards the transmission mechanism 10, and the sliding seat 321 drives the printed part 322 towards the workpiece 200 until the printed part 322 abuts against the workpiece 200 to complete the printing. During printing, the limiting protrusion 3213 of the sliding seat 321 abuts against the limiting pin 35, thereby limiting the distance between the sliding seat 321 and the printed part 322 moving towards the workpiece 200, so as to improve printing consistency and printing quality.

[0044] Next, the rotary drive 341 continues to drive the first drive rod 342 and the second drive rod 343 to rotate. The first drive rod 342 disengages from the actuating part 3312, and the second actuating rod abuts against the pushing protrusion 3212 of the sliding seat 321, thereby driving the sliding seat 321 and the printed part 322 away from the workpiece 200 in the second direction. During the movement of the sliding seat 321 away from the workpiece 200, the first inclined surface 3211a abuts against the second inclined surface 3311a. Through the inclined surface cooperation, the locking part 3311 is pushed away from the locking protrusion 3211, so that the locking part 3311 avoids the locking protrusion 3211, until the first inclined surface 3211a and the second inclined surface 3311a are misaligned, and the locking part 3311 moves to the underside of the locking protrusion 3211 under the pushing of the first elastic member 332. When the second drive rod 343 disengages from the push protrusion 3212, the locking protrusion 3211 of the sliding seat 321 abuts against the locking part 3311, thereby completing the locking of the sliding seat 321.

[0045] Finally, the push drive 261 drives the pusher 262 away from the workpiece 200, the stop drive 221 drives the stop 222 to retract to avoid the printed workpiece 200, and the transmission mechanism 10 can continue to transmit the workpiece 200.

[0046] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be embraced within this application.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and scope of the technical solutions of this application.

Claims

1. A printing apparatus, characterized in that, include: A transmission mechanism for transmitting a workpiece along a first direction; A positioning mechanism, disposed on the transmission mechanism, is used to position the workpiece; and A printing mechanism includes a fixed base, a printing component, a snap-fit ​​component, and a driving component. The fixed base is connected to the side of the positioning mechanism away from the transmission mechanism. The printing component includes a sliding base and a printed element. The sliding base is slidably connected to the fixed base along a second direction perpendicular to the first direction. The printed element is disposed at the end of the sliding base near the transmission mechanism. The snap-fit ​​component is connected to the fixed base and disposed adjacent to the sliding base along the first direction. The snap-fit ​​component is used to snap the sliding base to restrict the sliding base from moving closer to the transmission mechanism. The driving component is connected to the fixed base and disposed on the side of the snap-fit ​​component away from the sliding base. The driving component is used to drive the snap-fit ​​component to rotate away from the sliding base, so that the sliding base drives the printed element to move toward the transmission mechanism, thereby causing the printed element to abut against the workpiece. The driving component is also used to drive the sliding base to move away from the transmission mechanism along the second direction.

2. The printing apparatus as claimed in claim 1, characterized in that, The sliding seat is provided with a snap-fit ​​protrusion, which is located at one end of the sliding seat near the transmission mechanism and near the snap-fit ​​component; The latching assembly includes a latching member and a first elastic member. The latching member is rotatably connected to the fixed base about a third direction perpendicular to the first and second directions. The latching member includes a latching portion and a toggle portion disposed opposite to each other. The latching portion is disposed near the transmission mechanism and adapted to the latching protrusion. The latching portion is used to abut against the latching protrusion to restrict the movement of the sliding seat near the transmission mechanism. The toggle portion is disposed away from the transmission mechanism and inclined towards the driving assembly. The driving assembly is used to push the toggle portion to rotate near the sliding seat to drive the latching portion to rotate away from the latching protrusion. The first elastic member is disposed on the side of the latching portion away from the latching protrusion. The first elastic member is used to push the latching portion to move near the sliding seat.

3. The printing apparatus as claimed in claim 2, characterized in that, The snap-fit ​​protrusion has a first inclined surface on the side away from the transmission mechanism. The first inclined surface gradually approaches the sliding seat in a direction away from the transmission mechanism. The snap-fit ​​portion has a second inclined surface that matches the first inclined surface. When the driving component drives the sliding seat away from the transmission mechanism, the snap-fit ​​protrusion pushes against the second inclined surface through the first inclined surface to make the snap-fit ​​portion move away from the snap-fit ​​protrusion.

4. The printing apparatus as claimed in claim 2, characterized in that, The driving assembly includes a rotary drive member and a first drive rod. The rotary drive member is connected to the fixed base, and the first drive rod is connected to the rotary drive member. The extension direction of the first drive rod is perpendicular to the third direction, and the first drive rod corresponds to the position of the actuating part in the third direction. The rotary drive member is used to drive the first drive rod to rotate around the third direction, so that when the first drive rod abuts the actuating part, it pushes the actuating part closer to the sliding base.

5. The printing apparatus as claimed in claim 4, characterized in that, The sliding seat further includes a push protrusion, which is disposed on the side of the sliding seat near the snap-fit ​​assembly, and the push protrusion and the snap-fit ​​protrusion are spaced apart in a direction away from the transmission mechanism; The driving assembly further includes a second driving rod, which is connected to the rotary driving member and is disposed adjacent to the first driving rod along the third direction. The second driving rod corresponds to the position of the abutting protrusion in the third direction. The extension direction of the second driving rod is perpendicular to the third direction and intersects with the extension direction of the first driving rod. The second driving rod is used to rotate around the third direction under the drive of the rotary driving member to drive the abutting protrusion away from the transmission mechanism, thereby causing the sliding seat and the printed part to move away from the transmission mechanism.

6. The printing apparatus as claimed in claim 1, characterized in that, The printing mechanism further includes a limiting pin, which is connected to the fixed base and disposed near the side of the sliding seat away from the snap-fit ​​assembly. The side of the sliding seat away from the snap-fit ​​assembly is provided with a limiting protrusion, which is disposed opposite to the limiting pin along the first direction. The limiting pin is used to abut against the limiting protrusion when the sliding seat moves toward the transmission mechanism to limit the sliding seat. The printing mechanism further includes a second elastic element, one end of which abuts against the side of the sliding seat away from the transmission mechanism, and the other end of which abuts against the fixed seat. The second elastic element is used to push the sliding seat closer to the transmission mechanism.

7. The printing apparatus as claimed in claim 1, characterized in that, The positioning mechanism includes a support base and a stop assembly. The support base is connected to the transmission mechanism. The stop assembly includes a stop drive and a stop member. The stop drive is connected to the support base, and the stop member is connected to the stop drive. The stop drive is used to drive the stop member to move closer to or away from the transmission mechanism to stop or release the workpiece.

8. The printing apparatus as claimed in claim 7, characterized in that, The positioning mechanism further includes a first sensor and a second sensor. The first sensor is connected to the support base and disposed on the front side of the stop drive member along the first direction. The first sensor is used to detect the position of the workpiece. The second sensor is disposed on the side of the stop member that abuts against the workpiece. The second sensor is used to detect whether the stop member abuts against the workpiece.

9. The printing apparatus as claimed in claim 7, characterized in that, The positioning mechanism further includes two guide members, both of which are disposed on the side of the support base near the transmission mechanism. The two guide members are spaced apart along a third direction perpendicular to the first direction and the second direction. Each of the two guide members has a guide portion at the end away from the stop drive member. The two guide portions gradually move closer together along the first direction. The two guide members are used to guide the workpiece.

10. The printing apparatus as claimed in claim 9, characterized in that, The positioning mechanism further includes a pushing component, which includes a pushing drive and a pushing member. The pushing drive is connected to the support base and disposed near one of the guide members. The pushing member is connected to the pushing drive and is used to drive the pushing member to move along the third direction, so that the pushing member pushes the workpiece to the other guide member, thereby positioning the workpiece in the third direction.

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