A stirring device for printing circuit board ink

By designing a mixing device with a clamping structure and a driving mechanism, the problems of high labor intensity and spillage during ink bucket handling were solved, achieving an efficient and safe ink mixing process.

CN224573617UActive Publication Date: 2026-07-31CHANGZHOU PC SPECIALTIES
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGZHOU PC SPECIALTIES
Filing Date
2025-06-23
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

In the existing technology, the handling of ink canisters for printed circuit boards is labor-intensive and ink is prone to spillage, causing inconvenience during the handling process.

Method used

A stirring device including a clamping structure, a sealing cap, and a driving mechanism was designed. By clamping the ink container, the sealing cap and stirring blades are used to stir the ink in the ink container, avoiding repeated handling and reducing ink spillage.

Benefits of technology

It reduces labor intensity, decreases the possibility of ink spillage, and improves the efficiency and safety of ink mixing.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the technical field of printed circuit board (PCB) production equipment, specifically to a stirring device for PCB ink. The device includes a base with a C-shaped structure. A clamping structure for holding an ink container is mounted on the base. A support plate is fixedly connected to the top of the base. A sealing cover is slidably fitted onto the outside of the support plate. A positioner for positioning the sealing cover is mounted on the support plate. A rotating shaft passes through the sealing cover. Several stirring blades are fixedly connected to the bottom of the rotating shaft. A rubber sleeve is fixedly connected to the top of the sealing cover, fitting over the rotating shaft with an interference fit. A drive mechanism for driving the rotating shaft to lift and rotate is mounted on the support plate. This device eliminates the need for repeated handling of the ink container, reducing labor intensity and minimizing the possibility of ink spillage during handling.
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Description

Technical Field

[0001] This utility model relates to the field of printed circuit board production equipment technology, and in particular to a stirring device for printing circuit board ink. Background Technology

[0002] Printed circuit boards (PCBs) are the providers of electrical connections for electronic components. Screen printing is an essential and crucial step in PCB manufacturing. To achieve high fidelity in image reproduction, the ink must possess good viscosity and suitable thixotropy; therefore, the ink must be thoroughly and carefully stirred manually or mechanically before use.

[0003] In the prior art, Chinese patent CN210356798U discloses an ink mixer for printed circuit board processing, which can place existing ink buckets in the box for direct mixing. It is worth considering that although it does not require pouring and taking out the ink, it is still necessary to move the ink bucket into or out of the box. Repeatedly moving the ink bucket is labor-intensive, and the ink is also easy to spill during the process, which has certain limitations. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a stirring device for printed circuit board ink, so as to solve the problems of high labor intensity from repeatedly moving ink buckets and the easy spillage of ink during the moving process.

[0005] To achieve the above objectives, this utility model provides a stirring device for printed circuit board ink, comprising a base, the base being a C-shaped structure, a clamping structure for holding an ink container mounted on the base, a support plate fixedly connected to the top of the base, a sealing cover slidably fitted onto the outside of the support plate, and a positioner for positioning the sealing cover mounted on the support plate; a rotating shaft passing through the sealing cover, a plurality of stirring blades fixedly connected to the bottom end of the rotating shaft, a rubber sleeve fixedly connected to the top of the sealing cover, the rubber sleeve being fitted onto the outside of the rotating shaft, and the rubber sleeve and the rotating shaft being interference-fitted; and a drive mechanism for driving the rotating shaft to lift and rotate is mounted on the support plate.

[0006] Preferably, the driving mechanism includes a lifting seat that is slidably sleeved outside the support plate, a servo motor is fixedly connected to the top of the lifting seat, the top of the rotating shaft is fixedly connected to the output end of the servo motor, a first hydraulic telescopic rod is fixedly connected to the top of the support plate, and the telescopic end of the first hydraulic telescopic rod is fixedly connected to the top of the lifting seat.

[0007] Preferably, the positioner includes a fixed plate fixedly mounted on the support plate, and the fixed plate is located below the sealing cover. At least two lead screws are fixedly connected to the bottom of the sealing cover, the lead screws pass through the fixed plate, and nuts located below the fixed plate are sleeved on the outside of the lead screws.

[0008] Preferably, the clamping structure includes two guide bars disposed above the base, and an arc-shaped clamping plate is fixedly connected to one end of each guide bar that is close to each other. Two support blocks are fixedly connected to the top of the base. The support blocks are provided with guide grooves that are adapted to the guide bars, and the guide bars pass through the corresponding guide grooves. A presser for pressing the two guide bars is provided on the base.

[0009] Preferably, the presser includes two second hydraulic telescopic rods fixedly installed on the top of the base. The telescopic ends of the second hydraulic telescopic rods are fixedly connected to a pressing frame, and the pressing frame is in contact with the corresponding guide strip.

[0010] Preferably, the bottom of the base is fixedly connected with several casters.

[0011] The beneficial effects of this utility model are as follows: The ink bucket is clamped by the clamping structure, so that the base is fixedly connected to the ink bucket. The drive mechanism drives the rotating shaft to move downward. The rotating shaft drives the rubber sleeve and the sealing cap to move downward relative to the support plate through friction until the sealing cap abuts against the top of the ink bucket, thus sealing the ink bucket. The stirring blade is inserted into the ink bucket. The position of the ink bucket is positioned by the positioner to prevent the sealing cap from shaking vertically relative to the ink bucket. The drive mechanism drives the rotating shaft and the stirring blade to rotate. The drive mechanism also drives the rotating shaft to move back and forth vertically. The rotating shaft slides relative to the rubber sleeve and the sealing cap. The ink in the ink bucket is stirred by the rotating and lifting stirring blade. There is no need to repeatedly move the ink bucket, which reduces labor intensity and reduces the possibility of ink spillage caused by moving the ink bucket. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the locator in an embodiment of the present invention; Figure 3 This is a schematic diagram showing the disassembled structure of the guide bar and support block in an embodiment of this utility model; Figure 4This is a schematic diagram of the press frame in an embodiment of the present utility model.

[0014] The diagram is marked as follows: 1. Base; 2. Support plate; 3. Rotating shaft; 4. Rubber sleeve; 5. Sealing cover; 6. Stirring blade; 7. Lifting seat; 8. Servo motor; 9. First hydraulic telescopic rod; 10. Fixing plate; 11. Lead screw; 12. Nut; 13. Guide bar; 14. Support block; 15. Guide groove; 16. Arc-shaped clamp; 17. Second hydraulic telescopic rod; 18. Pressing frame; 19. Casters. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0016] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0017] This specification provides one or more embodiments of a stirring device for printed circuit board ink, such as... Figure 1 and Figure 2As shown, the device includes a base 1, which has a C-shaped structure. A clamping structure for holding the ink container is mounted on the base 1. A support plate 2 is fixedly connected to the top of the base 1. A sealing cover 5 is slidably fitted onto the outside of the support plate 2. A positioner for positioning the sealing cover 5 is mounted on the support plate 2. A rotating shaft 3 passes through the sealing cover 5. Several stirring blades 6 are fixedly connected to the bottom end of the rotating shaft 3. A rubber sleeve 4 is fixedly connected to the top of the sealing cover 5. The rubber sleeve 4 is fitted onto the outside of the rotating shaft 3, and the rubber sleeve 4 and the rotating shaft 3 are interference-fitted. A drive mechanism for driving the rotating shaft 3 to lift, lower, and rotate is mounted on the support plate 2. The operator drives the base 1 to move so that the base 1 is fitted onto the outside of the ink container, and the clamping structure holds the ink container so that the base 1 is positioned relative to the ink container. The ink container is fixedly connected. A drive mechanism drives the rotating shaft 3 to move downwards. The rotating shaft 3 drives the rubber sleeve 4 and the sealing cap 5 to move downwards relative to the support plate 2 through friction until the sealing cap 5 abuts against the top of the ink container, sealing the ink container. The stirring blade 6 is inserted into the ink container. The position of the ink container is positioned by a positioner to prevent the sealing cap 5 from shaking vertically relative to the ink container. The drive mechanism drives the rotating shaft 3 and the stirring blade 6 to rotate, and the drive mechanism drives the rotating shaft 3 to move back and forth vertically. The rotating shaft 3 slides relative to the rubber sleeve 4 and the sealing cap 5. The rotating and lifting stirring blade 6 stirs the ink in the ink container. There is no need to repeatedly move the ink container, which reduces labor intensity and reduces the possibility of ink spillage caused by moving the ink container.

[0018] In embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the drive mechanism includes a lifting seat 7 slidably sleeved outside the support plate 2. A servo motor 8 is fixedly connected to the top of the lifting seat 7. The top end of the rotating shaft 3 is fixedly connected to the output end of the servo motor 8. A first hydraulic telescopic rod 9 is fixedly connected to the top of the support plate 2, and the telescopic end of the first hydraulic telescopic rod 9 is fixedly connected to the top of the lifting seat 7. The positioner includes a fixing plate 10 fixedly installed on the support plate 2, and the fixing plate 10 is located below the sealing cover 5. At least two lead screws 11 are fixedly connected to the bottom of the sealing cover 5. The lead screws 11 pass through the fixing plate 10, and the outside of the lead screws 11 is sleeved with a device located below the fixing plate 10. The square nut 12; the lifting seat 7 is driven to move vertically relative to the support plate 2 by the first hydraulic telescopic rod 9. The lifting seat 7 can then be driven to move vertically by the rotating shaft 3 by the servo motor 8. The rotating shaft 3 is driven to rotate by the servo motor 8, which in turn drives the stirring blade 6 to rotate. When the rotating shaft 3 drives the rubber sleeve 4 and the sealing cover 5 to move down synchronously through friction, the sealing cover 5 drives the screw 11 to slide relative to the fixed plate 10. When the sealing cover 5 abuts against the top of the ink barrel, the operator drives the nut 12 to rotate so that the top of the nut 12 abuts against the bottom of the fixed plate 10, thereby fixing the sealing cover 5 relative to the ink barrel.

[0019] In embodiments of this utility model, such as Figure 1 , Figure 3 and Figure 4 As shown, the clamping structure includes two guide bars 13 positioned above the base 1. An arc-shaped clamping plate 16 is fixedly connected to the adjacent ends of both guide bars 13. Two support blocks 14 are fixedly connected to the top of the base 1. Each support block 14 has a guide groove 15 adapted to the guide bars 13, and the guide bars 13 pass through the corresponding guide grooves 15. The base 1 is equipped with a presser for pressing the two guide bars 13. The presser includes two second hydraulic telescopic rods 17 fixedly installed on the top of the base 1. A pressing frame 18 is fixedly connected to the telescopic end of each second hydraulic telescopic rod 17, and the pressing frame 18 contacts the corresponding guide bar 13. Several casters 19 are fixedly connected to the bottom of the base 1. The operator drives the base 1 to move via the casters 19, so that the base 1 is fitted over the ink container. According to the specifications of the ink bucket, the operator drives one of the guide bars 13 and the arc-shaped clamp 16 to move, adjusting the initial position of the corresponding arc-shaped clamp 16. After the position of the arc-shaped clamp 16 is adjusted, the operator drives the corresponding pressing frame 18 to move through the second hydraulic telescopic rod 17, so that the pressing frame 18 presses the guide bar 13, thus fixing the corresponding guide bar 13 and arc-shaped clamp 16 relative to the base 1. The operator then drives the other guide bar 13 and arc-shaped clamp 16 to move. When the two arc-shaped clamps 16 clamp the ink bucket, the operator drives the pressing frame 18 to move through the corresponding second hydraulic telescopic rod 17, and the pressing frame 18 presses the remaining guide bar 13, thus completing the fixing of the two arc-shaped clamps 16 and the clamping and fixing of the ink bucket by the two arc-shaped clamps 16.

[0020] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0021] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A stirring device for printed wiring board ink comprising a base (1), characterized in that, The base (1) is a C-shaped structure. A clamping structure for holding ink barrels is installed on the base (1). A support plate (2) is fixedly connected to the top of the base (1). A sealing cover (5) is slidably fitted on the outside of the support plate (2). A positioner for positioning the sealing cover (5) is installed on the support plate (2). A rotating shaft (3) passes through the sealing cover (5). Several stirring blades (6) are fixedly connected to the bottom of the rotating shaft (3). A rubber sleeve (4) is fixedly connected to the top of the sealing cover (5). The rubber sleeve (4) is fitted on the outside of the rotating shaft (3). The rubber sleeve (4) and the rotating shaft (3) are interference-fitted. A drive mechanism for driving the rotating shaft (3) to lift and rotate is installed on the support plate (2).

2. The stirring device for a printed wiring board ink according to claim 1, wherein The driving mechanism includes a lifting seat (7) that is slidably sleeved outside the support plate (2). A servo motor (8) is fixedly connected to the top of the lifting seat (7). The top of the rotating shaft (3) is fixedly connected to the output end of the servo motor (8). A first hydraulic telescopic rod (9) is fixedly connected to the top of the support plate (2), and the telescopic end of the first hydraulic telescopic rod (9) is fixedly connected to the top of the lifting seat (7).

3. The stirring device for a printed wiring board ink according to claim 1, wherein The positioner includes a fixed plate (10) fixedly installed on the support plate (2), and the fixed plate (10) is located below the sealing cover (5). At least two screw rods (11) are fixedly connected to the bottom of the sealing cover (5). The screw rods (11) pass through the fixed plate (10), and the screw rods (11) are fitted with nuts (12) located below the fixed plate (10).

4. The printed wiring board ink stirring device according to claim 1, wherein The clamping structure includes two guide bars (13) set above the base (1). An arc-shaped clamp (16) is fixedly connected to one end of the two guide bars (13) that are close to each other. Two support blocks (14) are fixedly connected to the top of the base (1). The support blocks (14) are provided with guide grooves (15) that are adapted to the guide bars (13), and the guide bars (13) pass through the corresponding guide grooves (15). The base (1) is provided with a presser for pressing the two guide bars (13).

5. The printed wiring board ink stirring device according to claim 4, wherein The presser includes two second hydraulic telescopic rods (17) fixedly installed on the top of the base (1). The telescopic ends of the second hydraulic telescopic rods (17) are fixedly connected to the press frame (18), and the press frame (18) and the corresponding guide strip (13) are in contact.

6. The printed wiring board ink stirring device according to claim 1, wherein The bottom of the base (1) is fixedly connected with several casters (19).