A circuit board solder paste printing device

Abstract

The utility model relates to circuit board tin printing device technical field, and disclose a kind of circuit board tin printing device, including support, the fixed connection of printing plate of support upper side, the scraper of the printing plate upper side setting and the board piece of the printing plate inside setting, the support upper side is provided with positioning docking mechanism and unloading mechanism, the unloading mechanism is arranged in positioning docking mechanism side, the positioning docking mechanism includes a plurality of docking grooves, the docking groove is all set in printing plate interior, the printing plate interior is provided with a plurality of loading and unloading, the support interior is provided with a plurality of sliding slots, a plurality of the sliding slot inside sliding connection has positioning frame, the positioning frame upper end is fixedly connected with a plurality of top plate, the unloading mechanism is used to send board piece to printing slot mouth interior and carry out docking or send out printed board piece, avoid the multiple steps needed for loading and unloading, the positioning docking mechanism is used to carry out synchronous storage and auxiliary ejection to a plurality of board piece, improve the device practicability.

Description

Technical Field

[0001] This utility model relates to the technical field of circuit board solder paste printing equipment, specifically a circuit board solder paste printing equipment. Background Technology

[0002] Solder paste printing on circuit boards is a crucial step in surface mount technology (SMT). Its core purpose is to transfer a precise amount of solder paste onto designated pads on the circuit board using a pre-made stencil. The process begins with a metal stencil etched with patterned openings, each corresponding to a pad on the circuit board. During printing, the stencil is aligned and fixed to the circuit board, and a squeegee forces the solder paste to roll across the stencil surface and fill the openings. As the stencil separates from the circuit board, the solder paste adheres to the pads, forming the defined pattern. The quality of this transferred pattern directly determines the reliability of subsequent component placement and electrical connections after reflow soldering. Therefore, extremely high precision, consistency, and cleanliness are required during printing, forming the foundation of the entire assembly process.

[0003] Before printing on the board, it is usually necessary to open the printed circuit board, place the PCB board inside the slot, and then snap the printed circuit board in place or lock it with a threaded structure. The disassembly and assembly process requires multiple steps, which affects work efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a circuit board solder paste printing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a circuit board solder paste printing device, comprising a support, a printing plate fixedly connected to the upper side of the support, a scraper disposed on the upper side of the printing plate, and a plate disposed on the inner side of the printing plate. The upper side of the support is provided with a positioning docking mechanism and a material unloading mechanism, and the material unloading mechanism is disposed on one side of the positioning docking mechanism.

[0006] The positioning and docking mechanism includes multiple docking slots, all of which are formed inside the printed circuit board. The printed circuit board has multiple loading and unloading ports inside, and the support has multiple sliding grooves inside. Positioning frames are slidably connected inside the multiple sliding grooves. Multiple top plates are fixedly connected to the upper ends of the positioning frames. Sliding cylinders are slidably connected to the outer walls of the multiple top plates. Traction springs are fixedly connected between the inner walls of the sliding cylinders and the lower surfaces of the top plates. A storage seat is fixedly connected to the upper end of each sliding cylinder. A push rod is fixedly connected to the upper surface of each of the upper top plates. The push rods extend through the storage seats and into their interiors. A push plate is fixedly connected to the upper surface of each push rod, and the push plate is slidably connected to the storage seat.

[0007] Preferably, the lower side of the slide cylinder has a groove with a thickness greater than that of the top plate.

[0008] Preferably, the storage base has a groove inside that is thicker than the plate and the push plate.

[0009] Preferably, the upper structure of the positioning frame is arranged to coincide with the center of each loading and unloading port.

[0010] Preferably, the unloading mechanism includes a piston cylinder and a sliding sleeve. The sliding sleeve is fixedly connected to the output end of the piston cylinder. The piston cylinder is fixedly connected to the lower side of the positioning frame. The sliding sleeve is slidably connected to the outer wall of the middle positioning frame. A pneumatic cylinder is fixedly connected to the lower surface near the loading / unloading port. A return spring is fixedly connected inside the pneumatic cylinder. A partition is fixedly connected to the side of the return spring near the positioning frame. The partition is slidably connected inside the pneumatic cylinder. A pull rod structure is fixedly connected to the side of the partition away from the positioning frame. The pull rod structure is slidably and sealingly connected to the pneumatic cylinder. A buffer spring is fixedly connected to one side of the partition. A buffer plate is fixedly connected to one side of the buffer spring. The buffer plate is fixedly connected to the sliding sleeve through a rod-like structure. A flow divider is fixedly connected to the side of the pneumatic cylinder away from the positioning frame. A pneumatic pipe is connected to the flow divider and communicates with the interior of the piston cylinder.

[0011] Preferably, the forming end of the pneumatic cylinder is positioned to correspond to the middle loading and unloading port.

[0012] Preferably, a pressure supply port is provided on one side of the air cylinder.

[0013] Compared with the prior art, the present invention provides a circuit board solder paste printing device, which has the following beneficial effects:

[0014] 1. The unloading mechanism is used to deliver the printed plates into the printing slot for docking or to deliver the printed plates. This mechanism uses a rising positioning frame to press the slide cylinder and the plates against each other, making it easy for the plates to fit against the inner wall of the docking slot, avoiding multiple steps of locking the plates. At the same time, the mechanism applies negative pressure inside the air cylinder to drive the partition plate to move. The partition plate movement causes the piston cylinder to contract, which in turn causes the top plate to push the receiving seat out of the docking slot with the help of the traction spring. Simultaneously, the contraction of the return spring sends the entire receiving seat to the loading and unloading port. Users can directly take out the printed plates and install new plates. After releasing the air pressure inside the air cylinder, the return spring pushes the plates back into the loading and unloading port, thus avoiding multiple steps required for loading and unloading.

[0015] 2. The positioning and docking mechanism is used to simultaneously store and assist in ejecting multiple plates. This mechanism uses a positioning frame that slides inside the slide cylinder to press the plate and the printing plate together. After the positioning frame moves down, the traction spring pulls the plate into the storage seat, which is convenient to cooperate with the unloading mechanism to directly complete the loading and unloading work and improves the practicality of the device. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0019] Figure 3 This is a schematic diagram of a half-section of the present invention;

[0020] Figure 4 This is a schematic diagram of the positioning frame in this utility model;

[0021] Figure 5 This is a schematic diagram of the reset spring in this utility model.

[0022] In the diagram: 1. Support; 2. Printing plate; 3. Scraper; 4. Positioning and docking mechanism; 401. Docking groove; 402. Loading and unloading port; 403. Slide groove; 404. Positioning frame; 405. Top plate; 406. Slide cylinder; 407. Traction spring; 408. Storage seat; 409. Top rod; 410. Push plate; 5. Unloading mechanism; 501. Piston cylinder; 502. Sliding sleeve; 503. Air cylinder; 504. Return spring; 505. Partition plate; 506. Buffer spring; 507. Buffer plate; 508. Diverter; 509. Air pipe; 6. Plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] Example 1:

[0026] Please see Figure 1-5 This utility model provides a technical solution: a circuit board solder paste printing device, including a support 1, a printing plate 2 fixedly connected to the upper side of the support 1, a scraper 3 provided on the upper side of the printing plate 2 and a plate 6 provided on the inner side of the printing plate 2, and a positioning docking mechanism 4 and an unloading mechanism 5 provided on the upper side of the support 1, with the unloading mechanism 5 located on one side of the positioning docking mechanism 4.

[0027] This mechanism is used for quick positioning, clamping, and direct removal of the plate 6. It eliminates the need for disassembling and assembling the plate 6, thus improving work efficiency. Simultaneously, this mechanism facilitates simultaneous printing of multiple plates 6. The positioning and docking mechanism 4 includes multiple docking slots 401, all of which are located inside the printing plate 2. The printing plate 2 has multiple loading and unloading ports 402 inside. The support 1 has multiple sliding grooves 403 inside, and positioning frames 404 are slidably connected within these grooves 403. The upper end of the positioning frame 404 is fixed. Multiple top plates 405 are connected, and slide cylinders 406 are slidably connected to the outer walls of the multiple top plates 405. Traction springs 407 are fixedly connected between the inner wall of the slide cylinders 406 and the lower surface of the top plates 405. Storage seats 408 are fixedly connected to the upper ends of the slide cylinders 406. Push rods 409 are fixedly connected to the upper surface of the upper top plates 405. Push rods 409 extend through the storage seats 408 and into the interior of the storage seats 408. Push plates 410 are fixedly connected to the upper surface of the push rods 409. Push plates 410 are slidably connected to the storage seats 408.

[0028] Furthermore, a groove 403 with a thickness greater than that of the top plate 405 is provided on the lower side of the slide cylinder 406.

[0029] Furthermore, the storage base 408 has a groove inside that is thicker than the plate 6 and the push plate 410.

[0030] Furthermore, the upper structure of the positioning frame 404 is respectively set to coincide with the center of each loading and unloading port 402.

[0031] Example 2:

[0032] This mechanism is used for the storage or ejection of plate 6, which enhances the flexibility of the device. (See attached image.) Figure 1-5 Furthermore, in conjunction with Embodiment 1, the unloading mechanism 5 includes a piston cylinder 501 and a sliding sleeve 502. The sliding sleeve 502 is fixedly connected to the output end of the piston cylinder 501. The piston cylinder 501 is fixedly connected to the lower side of the positioning frame 404. The sliding sleeve 502 is slidably connected to the outer wall of the middle positioning frame 404. A pneumatic cylinder 503 is fixedly connected to the lower surface of the side near the loading / unloading port 402. A return spring 504 is fixedly connected inside the pneumatic cylinder 503. A partition plate 505 is fixedly connected to the side of the return spring 504 near the positioning frame 404. The partition plate 505 is slidably connected to the pneumatic cylinder 503. Inside the pressure cylinder 503, a pull rod structure is fixedly connected to the side of the partition 505 away from the positioning frame 404. The pull rod structure is slidably connected to the pressure cylinder 503 in a sealed manner. A buffer spring 506 is fixedly connected to one side of the partition 505. A buffer plate 507 is fixedly connected to one side of the buffer spring 506. The buffer plate 507 is fixedly connected to the sliding sleeve 502 through a rod-shaped structure. A diverter 508 is fixedly connected to the side of the pressure cylinder 503 away from the positioning frame 404. A pressure pipe 509 is connected to the diverter 508. The pressure pipe 509 is connected to the inside of the piston cylinder 501.

[0033] Furthermore, the end of the air cylinder 503 is positioned to correspond to the middle loading / unloading port 402.

[0034] Furthermore, a pressure supply port is connected to one side of the air cylinder 503. In this device, the piston cylinder 501 will lower the position of the storage seat 408. The user can set the section between the loading and unloading port 402 and the docking groove 401 as a slope structure so that the storage seat 408 can easily take out the plate 6. The user can also directly take out the plate 6 with tools.

[0035] In actual operation, when this device is in use, the return spring 504 is in a contracted state, and the piston cylinder 501 is filled with air pressure. The piston cylinder 501 drives the positioning frame 404 away from the sliding sleeve 502. The user uses tools such as tweezers or a suction cup to install the plate 6 inside the multiple storage seats 408. Then, the user releases the pull rod, the return spring 504 releases its elastic force, and the displacement of the partition 505 causes the air pressure inside the piston cylinder 501 to decrease. At this time, the air pressure cylinder 503 drives the multiple storage seats 408 to approach and abut against the lower surface of the printing plate 2 until they slide into the printing plate 2. As the return spring 504 continues to move and stretches the traction spring 407, the plate 6 is brought into contact with the lower surface of the printing plate 2, and printing can then be performed on the plate 6. After printing is completed, the user can pull the lever. At this time, the buffer spring 506 extends while the traction spring 407 loses its thrust and retracts. The plate 6 is hidden inside the storage seat 408. As the air pressure inside the piston cylinder 501 increases, the distance between the sliding sleeve 502 and the positioning frame 404 increases, which allows the positioning frame 404 to drive the storage seat 408 away from the printing plate 2. Then the buffer spring 506 returns to its state. The user can continue to pull the partition 505 to make the storage seat 408 reach the loading and unloading port 402 and start the next printing cycle. The device has a simple structure and principle and can complete the feeding, positioning and clamping, withdrawal and reaching the loading and unloading port 402 of the plate 6 through simple actions, so that the device eliminates complicated disassembly and clamping steps.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A circuit board solder paste printing apparatus, comprising a support (1), a printed circuit board (2) fixedly connected to the upper side of the support (1), a scraper (3) disposed on the upper side of the printed circuit board (2), and a plate (6) disposed on the inner side of the printed circuit board (2), characterized in that: The support (1) is provided with a positioning docking mechanism (4) and a unloading mechanism (5) on its upper side, and the unloading mechanism (5) is located on one side of the positioning docking mechanism (4); The positioning and docking mechanism (4) includes multiple docking slots (401), all of which are located inside the printing plate (2). The printing plate (2) has multiple loading and unloading ports (402) inside. The support (1) has multiple sliding grooves (403) inside. Positioning frames (404) are slidably connected inside the multiple sliding grooves (403). Multiple top plates (405) are fixedly connected to the upper end of the positioning frames (404), and sliding cylinders (406) are slidably connected to the outer walls of the multiple top plates (405). A traction spring (407) is fixedly connected between the inner wall of the slide cylinder (406) and the lower surface of the top plate (405). A storage seat (408) is fixedly connected to the upper end of the slide cylinder (406). A push rod (409) is fixedly connected to the upper surface of the top plate (405). The push rod (409) extends through the storage seat (408) and into the interior of the storage seat (408). A push plate (410) is fixedly connected to the upper surface of the push rod (409). The push plate (410) is slidably connected to the storage seat (408).

2. The circuit board solder paste printing apparatus according to claim 1, characterized in that: The slide cylinder (406) has a groove (403) on its lower side with a thickness greater than that of the top plate (405).

3. The circuit board solder paste printing apparatus according to claim 1, characterized in that: The storage base (408) has a groove inside that is thicker than the plate (6) and the push plate (410).

4. The circuit board solder paste printing apparatus according to claim 1, characterized in that: The upper structure of the positioning frame (404) is respectively set to coincide with the center of each loading and unloading port (402).

5. The circuit board solder paste printing apparatus according to claim 1, characterized in that: The unloading mechanism (5) includes a piston cylinder (501) and a sliding sleeve (502). The sliding sleeve (502) is fixedly connected to the output end of the piston cylinder (501). The piston cylinder (501) is fixedly connected to the lower side of the positioning frame (404). The sliding sleeve (502) is slidably connected to the outer wall of the middle positioning frame (404). A pneumatic cylinder (503) is fixedly connected to the lower surface of the side near the loading / unloading port (402). A return spring (504) is fixedly connected inside the pneumatic cylinder (503). A partition plate (505) is fixedly connected to the side of the return spring (504) near the positioning frame (404). The partition plate (505) is slidably connected inside the pneumatic cylinder (503). In the part, a pull rod structure is fixedly connected to the side of the partition (505) away from the positioning frame (404). The pull rod structure is slidably connected to the pneumatic cylinder (503). A buffer spring (506) is fixedly connected to one side of the partition (505). A buffer plate (507) is fixedly connected to one side of the buffer spring (506). The buffer plate (507) is fixedly connected to the sliding sleeve (502) through a rod-shaped structure. A diverter (508) is fixedly connected to the side of the pneumatic cylinder (503) away from the positioning frame (404). A pneumatic pipe (509) is connected to the diverter (508). The pneumatic pipe (509) is connected to the inside of the piston cylinder (501).

6. The circuit board solder paste printing apparatus according to claim 5, characterized in that: The end of the forming of the air cylinder (503) is positioned to correspond to the middle loading and unloading port (402).

7. The circuit board solder paste printing apparatus according to claim 5, characterized in that: A pressure supply port is connected to one side of the air cylinder (503).

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