Ink filling device capable of accurately adding ink

By using a synchronous clamping mechanism and a precise quantitative ink delivery mechanism, and by using a micrometer to control the ink extraction volume of the cylinder, the problem of inaccurate ink addition in existing technologies has been solved, achieving precise control of ink addition to the pen barrel and improving the yield rate.

CN223864588UActive Publication Date: 2026-02-03SHANGHAI BAIJIN PEN MFG CO LTD
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Patent Information

Application Number
CN202520491468.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-19
Publication Date
2026-02-03
Estimated Expiration
2035-03-19

AI Technical Summary

Technical Problem

Existing ink filling devices are not precise enough in controlling the amount of ink added, resulting in a decrease in the yield rate and problems with the writing length not meeting the requirements.

Method used

It adopts a synchronous clamping mechanism and a precise quantitative ink delivery mechanism, including an ink supply component, an ink filling component and an ink volume control component. It uses a micrometer to control the ink drawing volume of the cylinder, and combines an adjustable stroke cylinder and an ink storage bladder to achieve precise control of the ink filling volume.

Benefits of technology

It achieves precise control over ink filling of the pen, avoids pen shaking during ink filling, and improves the yield rate and consistency of writing length.

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Abstract

The utility model discloses an ink filling device capable of adding ink accurately, and belongs to the field of stationery production. A synchronous clamping mechanism for synchronously clamping and fixing the penholder when ink is added to the penholder is mounted on the base station; an accurate quantitative ink conveying mechanism for accurately adding ink to the pen holder is mounted on the base station; the precise quantitative ink conveying mechanism comprises an ink supply assembly, an ink adding assembly and an ink amount control assembly. The ink supply assembly and the ink adding assembly are both connected with the base station, and the ink supply assembly and the ink adding assembly are both connected with the ink quantity control assembly; the ink adding assembly is connected with the synchronous clamping mechanism. The ink supply assembly is used for extracting and supplying ink; the ink adding assembly is used for adding ink to the pen holder, and the ink amount control assembly is used for controlling the ink adding amount. By means of the mode, the micrometer is adopted to control the ink pumping amount of the air cylinder, and the effect of accurately controlling the ink conveying amount is achieved.
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Description

Technical Field

[0001] This utility model relates to the field of stationery production, specifically to an ink filling device for precise ink filling. Background Technology

[0002] The ink filling device industry is showing a positive development trend in terms of technological innovation, market demand, competitive landscape, and future trends. Ink technology is constantly improving, and filling technology is continuously being optimized to meet the needs for filling accuracy and environmental performance. With the continuous progress of technology and the continuous development of the market, the ink market will usher in a broader application prospect and market space.

[0003] Chinese patent CN221562596U discloses an ink filling device, including an intermediate seal, a connecting member, a pipette, and a second cavity for containing ink to be filled into an ink container. The intermediate seal seals the connecting member, which allows the second cavity to communicate with the atmosphere. The ink contained in the second cavity can be transferred to the ink container through the pipette. During the ink filling process, the connecting member is sealed. After the filling process is completed, before the ink container is completely separated from the pipette, the seal of the connecting member is released, and the second cavity is connected to the atmosphere through the connecting member. With this configuration, after the ink filling process is completed and the ink container is removed, before the ink container is completely separated from the pipette, the connecting member allows the second cavity to communicate with the atmosphere, maintaining pressure balance with atmospheric pressure. This prevents ink from overflowing through the pipette, thus avoiding both soiling the ink filling device and wasting ink. However, this device still has the following problems:

[0004] Inaccurate control of ink addition can lead to deviations in ink addition, affecting the yield rate and causing issues such as unqualified writing lengths in the products.

[0005] Based on this, the present invention designs an ink filling device with precise ink filling to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides an ink filling device with precise ink filling.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A precise ink filling device, including a base;

[0009] The base is equipped with a synchronous clamping mechanism for simultaneously clamping and fixing the pen barrel when ink is added;

[0010] The base is equipped with a precision quantitative ink delivery mechanism for accurately adding ink to the pen barrel;

[0011] The precise quantitative ink dispensing mechanism includes an ink supply component, an ink filling component, and an ink volume control component; both the ink supply component and the ink filling component are connected to the base, and both are connected to the ink volume control component; the ink filling component is connected to the synchronous clamping mechanism; the ink supply component is used to extract and supply ink; the ink filling component is used to add ink to the pen barrel, and the ink volume control component is used to control the amount of ink added.

[0012] Furthermore, the ink supply assembly includes an ink supply tube and a blocking cylinder; the ink supply tube is fixedly connected to the rear end of the base, the drive end of the blocking cylinder abuts against the ink supply tube, and the blocking cylinder is fixedly connected to the base; one end of the ink supply tube is connected to the ink volume control assembly, and the other end of the ink supply tube is connected to the ink supply device.

[0013] Furthermore, the ink filling assembly includes an ink filling cylinder and an ink filling head; the ink filling cylinder is fixedly connected to the base; the drive end of the ink filling cylinder is fixedly connected to the ink filling head, and the ink filling cylinder is connected to the ink volume control assembly; the drive end of the ink filling cylinder is connected to the synchronous clamping mechanism, and the ink filling cylinder is a stroke adjustable cylinder.

[0014] Furthermore, the ink volume control component includes a micrometer and an ink reservoir; the quick-drive ratchet on the front side of the micrometer is rotatably connected to the drive end of the ink filling cylinder, and the fixed sleeve of the micrometer is fixedly connected to the piston rod of the ink filling cylinder; the rear end of the ink filling cylinder is threadedly connected to the ink reservoir via a threaded sleeve; the ink reservoir is fixedly connected to the micrometer screw of the micrometer, and the rear end of the ink reservoir is connected to the ink supply tube; the piston rod of the ink filling cylinder is hollow, and both ends of the piston rod are connected to the ink reservoir and the ink filling head, respectively.

[0015] Furthermore, the synchronous clamping mechanism includes a driving component, a lifting component, a limiting component, and a fixing component; the driving component is connected to the driving end of the ink filling cylinder; the driving component is connected to the lifting component, and the limiting component is connected to the driving component; the limiting component is connected to the fixing component; the fixing component is connected to the base; the driving component is used to drive the lifting component, the lifting component is used to lift the fixing component to clamp and fix the pen barrel, and the limiting component is used to limit the fixing component.

[0016] Furthermore, the drive assembly includes a drive plate, a first rotating shaft, a connecting rod, and a second rotating shaft; the drive plate is fixedly connected to the drive end of the ink filling cylinder, the lower end of the drive plate is fixedly connected to the first rotating shaft, both the left and right ends of the first rotating shaft are rotatably connected to a connecting rod, and the end of the connecting rod not connected to the first rotating shaft is rotatably connected to the second rotating shaft.

[0017] Furthermore, the lifting assembly includes a lifting plate and a lifting roller; the two lifting plates are arranged symmetrically on the left and right; the lower end of the lifting plate is fixedly connected to the base, and a lifting groove is provided on the lifting plate for limiting the sliding of the second rotating shaft; a lifting roller for lifting the fixed assembly is sleeved in the middle of the second rotating shaft.

[0018] Furthermore, the fixing assembly includes an upper clamping plate and a lower clamping plate; the upper clamping plate is fixedly connected to the base; both the front and rear ends of the lower clamping plate are connected to the limiting assembly; and the lower end of the lower clamping plate abuts against the lifting roller.

[0019] Compared with the prior art, the advantages of this utility model are as follows: 1. This utility model uses a micrometer to control the ink extraction volume of the cylinder to achieve precise control of the ink supply volume.

[0020] 2. This utility model can simultaneously clamp and fix the pen barrel when adding ink, avoiding pen barrel shaking due to asynchronous clamping. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This utility model provides a three-dimensional ink filling device for precise ink filling. Figure 1 ;

[0023] Figure 2 This is a front view of an ink filling device with precise ink dispensing according to the present invention;

[0024] Figure 3 This is a partial perspective view of an ink filling device with precise ink dispensing according to the present invention;

[0025] Figure 4 This is a perspective view of the pen barrel and upper clamping plate of a precise ink filling device according to the present invention.

[0026] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0027] Figure 6 This is a left view of an ink filling device with precise ink dispensing according to the present invention;

[0028] Figure 7 For along Figure 6 A partial 3D view after a section has been removed along the BB direction.

[0029] The labels in the diagram represent:

[0030] 1. Base; 2. Precision quantitative ink delivery mechanism; 21. Ink supply assembly; 211. Ink supply tube; 212. Blocking cylinder; 22. Ink filling assembly; 221. Ink filling cylinder; 222. Ink filling head; 23. Ink volume control assembly; 231. Micrometer; 232. Ink reservoir; 3. Synchronous clamping mechanism; 31. Drive assembly; 311. Drive plate; 312. Rotating shaft one; 313. Connecting rod; 314. Rotating shaft two; 32. Lifting assembly; 321. Lifting plate; 322. Lifting groove; 323. Lifting roller; 33. Limiting assembly; 331. Fixing plate; 332. Limiting slide bar; 34. Fixing assembly; 341. Upper clamping plate; 342. Lower clamping plate. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0032] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0033] Example 1: In some embodiments, please refer to the accompanying drawings. Figures 1-7 A precise ink filling device, comprising a base 1;

[0034] The base 1 is equipped with a synchronous clamping mechanism 3 for simultaneously clamping and fixing the pen barrel when ink is added to it;

[0035] The base 1 is equipped with a precision quantitative ink delivery mechanism 2 for precisely adding ink to the pen barrel;

[0036] The precise quantitative ink dispensing mechanism 2 includes an ink supply component 21, an ink filling component 22, and an ink volume control component 23; both the ink supply component 21 and the ink filling component 22 are connected to the base 1, and both are connected to the ink volume control component 23; the ink filling component 22 is connected to the synchronous clamping mechanism 3; the ink supply component 21 is used to extract and supply ink; the ink filling component 22 is used to add ink to the pen barrel, and the ink volume control component 23 is used to control the amount of ink added;

[0037] In this utility model, the pen barrel is conveyed to the left by a stepper conveyor (not shown in the figure). When the pen barrel is conveyed to the front end of the ink filling component 22, the ink supply component 21 accurately supplies ink under the control of the ink quantity control component 23. Then, the ink filling component 22 adds ink to the pen barrel. At the same time as adding ink, the synchronous clamping mechanism 3 controls the synchronous clamping and fixing of the pen barrel, so as to achieve precise control of the amount of ink added to the pen barrel and synchronously fix the pen barrel while adding ink.

[0038] The ink supply assembly 21 includes an ink supply tube 211 and a blocking cylinder 212; the ink supply tube 211 is fixedly connected to the rear end of the base 1, the driving end of the blocking cylinder 212 abuts against the ink supply tube 211, and the blocking cylinder 212 is fixedly connected to the base 1; one end of the ink supply tube 211 is connected to the ink volume control assembly 23, and the other end of the ink supply tube 211 is connected to the ink supply device.

[0039] The ink filling assembly 22 includes an ink filling cylinder 221 and an ink filling head 222; the ink filling cylinder 221 is fixedly connected to the base 1; the drive end of the ink filling cylinder 221 is fixedly connected to the ink filling head 222, and the ink filling cylinder 221 is connected to the ink volume control assembly 23; the drive end of the ink filling cylinder 221 is connected to the synchronous clamping mechanism 3; the ink filling cylinder 221 is a stroke adjustable cylinder.

[0040] The ink volume control component 23 includes a micrometer 231 and an ink reservoir 232. The micrometer 231 employs mature technologies in the field and consists of a quick-drive ratchet, a micrometer spool, an adjusting nut, a fixed sleeve, micrometer spool scale, fixed sleeve scale, a baseline, and a micrometer screw. The quick-drive ratchet on the front side of the micrometer 231 is rotatably connected to the drive end of the ink filling cylinder 221, and the fixed sleeve of the micrometer 231 is fixedly connected to the piston rod of the ink filling cylinder 221. The rear end of the ink filling cylinder 221 is threadedly connected to the ink reservoir 232. The ink reservoir 232 is fixedly connected to the micrometer screw of the micrometer 231, and the rear end of the ink reservoir 232 is connected to the ink supply tube 211. The piston rod of the ink filling cylinder 221 is hollow, and both ends of the piston rod are connected to the ink reservoir 232 and the ink filling head 222, respectively.

[0041] In this invention, rotating the fast-drive ratchet at the front end of the micrometer 231 causes the micrometer screw at the rear end of the micrometer 231 to rotate and extend or retract synchronously. The micrometer screw at the rear end of the micrometer 231 drives the ink reservoir 232 to move on the piston rod of the ink filling cylinder 221. At the same time, the larger the space occupied by the piston rod of the ink filling cylinder 221 inside the ink reservoir 232, the smaller the ink storage capacity of the ink reservoir 232, and vice versa. After adjusting the ink storage capacity of the ink reservoir 232, the ink supply tube 211 adds ink to the ink reservoir 232. After it is full, the drive end of the blocking cylinder 212 moves to block the ink supply tube 211 from supplying ink. Then, the ink filling cylinder 221 drives the ink filling head 222 to move forward and insert it into the pen barrel to add ink to the pen barrel. The amount of ink added is the ink storage capacity of the ink reservoir 232, thus achieving precise control of the ink filling amount through the micrometer 231.

[0042] The synchronous clamping mechanism 3 includes a drive component 31, a lifting component 32, a limiting component 33, and a fixing component 34; the drive component 31 is connected to the drive end of the ink filling cylinder 221; the drive component 31 is connected to the lifting component 32, and the limiting component 33 is connected to the drive component 31; the limiting component 33 is connected to the fixing component 34; the fixing component 34 is connected to the base 1; the drive component 31 is used to drive the lifting component 32, the lifting component 32 is used to lift the fixing component 34 to clamp and fix the pen barrel, and the limiting component 33 is used to limit the fixing component 34;

[0043] The drive assembly 31 includes a drive plate 311, a first rotating shaft 312, a connecting rod 313, and a second rotating shaft 314. The drive plate 311 is fixedly connected to the drive end of the ink filling cylinder 221. The lower end of the drive plate 311 is fixedly connected to the first rotating shaft 312. Both the left and right ends of the first rotating shaft 312 are rotatably connected to a connecting rod 313. The end of the connecting rod 313 that is not connected to the first rotating shaft 312 is rotatably connected to the second rotating shaft 314.

[0044] The lifting assembly 32 includes a lifting plate 321 and a lifting roller 323; the two lifting plates 321 are symmetrically arranged on the left and right; the lower end of the lifting plate 321 is fixedly connected to the base 1, and a lifting groove 322 is provided on the lifting plate 321 for limiting the sliding of the second rotating shaft 314; a lifting roller 323 for lifting the fixed assembly 34 is sleeved in the middle of the second rotating shaft 314;

[0045] The limiting component 33 includes a fixing plate 331 and a limiting slide bar 332; two sets of fixing plates 331 are symmetrically distributed in front and behind the fixing component 34, each set of fixing plates 331 includes two fixing plates 331, which are distributed vertically, and the fixing plates 331 are fixedly connected to the base 1; the ends of each set of fixing plates 331 that are close to each other are respectively fixedly connected to the upper and lower ends of the same limiting slide bar 332;

[0046] The fixing assembly 34 includes an upper clamping plate 341 and a lower clamping plate 342; the upper clamping plate 341 is fixedly connected to the base 1; the front and rear ends of the lower clamping plate 342 are respectively limited and slidably connected to two limiting slide rods 332; the lower end of the lower clamping plate 342 abuts against the lifting roller 323.

[0047] In this invention, when adding ink, the ink-adding cylinder 221 pushes the drive plate 311 forward. The drive plate 311 pushes the connecting rod 313 to move through the first rotating shaft 312. The connecting rod 313 pushes the second rotating shaft 314 to slide against the lifting plate 321 under the limit of the lifting groove 322. At the same time, it drives the lifting roller 323 to lift the lower clamping plate 342 upward. Under the limit of the limiting slide rod 332, the lower clamping plate 342 cooperates with the upper clamping plate 341 to clamp and fix the pen barrel, thereby realizing the synchronous fixation of the pen barrel when adding ink.

[0048] Preferably, a spring is fitted on the limiting slide bar 332, with the upper end of the spring fixedly connected to the lower end of the fixing plate 331 and the lower end of the spring fixedly connected to the upper end of the lower clamping plate 342, thereby reducing the reset time of the lower clamping plate 342 and avoiding affecting the feeding of the stepper conveyor.

[0049] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A precise ink filling device, comprising a base (1), characterized in that: It also includes a precise quantitative ink delivery mechanism (2) and a synchronous clamping mechanism (3); The base (1) is equipped with a synchronous clamping mechanism (3) for simultaneously clamping and fixing the pen barrel when ink is added; The base (1) is equipped with a precision quantitative ink delivery mechanism (2) for precisely adding ink to the pen barrel; The precise quantitative ink delivery mechanism (2) includes an ink supply component (21), an ink filling component (22), and an ink quantity control component (23); the ink supply component (21) and the ink filling component (22) are both connected to the base (1), and the ink supply component (21) and the ink filling component (22) are both connected to the ink quantity control component (23); the ink filling component (22) is connected to the synchronous clamping mechanism (3); the ink supply component (21) is used to extract and supply ink; the ink filling component (22) is used to add ink to the pen barrel, and the ink quantity control component (23) is used to control the amount of ink added.

2. The ink filling device with precise ink filling according to claim 1, characterized in that, The ink supply assembly (21) includes an ink supply tube (211) and a blocking cylinder (212); the ink supply tube (211) is fixedly connected to the rear end of the base (1), the driving end of the blocking cylinder (212) abuts against the ink supply tube (211), and the blocking cylinder (212) is fixedly connected to the base (1); one end of the ink supply tube (211) is connected to the ink volume control assembly (23), and the other end of the ink supply tube (211) is connected to the ink supply device.

3. The ink filling device with precise ink filling according to claim 2, characterized in that, The ink filling assembly (22) includes an ink filling cylinder (221) and an ink filling head (222); the ink filling cylinder (221) is fixedly connected to the base (1); the drive end of the ink filling cylinder (221) is fixedly connected to the ink filling head (222), and the ink filling cylinder (221) is connected to the ink volume control assembly (23); the drive end of the ink filling cylinder (221) is connected to the synchronous clamping mechanism (3), and the ink filling cylinder (221) is a stroke adjustable cylinder.

4. The ink filling device for precise ink filling according to claim 3, characterized in that, The ink volume control component (23) includes a micrometer (231) and an ink reservoir (232); the quick-drive ratchet on the front side of the micrometer (231) is rotatably connected to the drive end of the ink filling cylinder (221), and the fixed sleeve of the micrometer (231) is fixedly connected to the piston rod of the ink filling cylinder (221); the rear end of the ink filling cylinder (221) is threadedly connected to the ink reservoir (232); the ink reservoir (232) is fixedly connected to the micrometer screw of the micrometer (231), and the rear end of the ink reservoir (232) is connected to the ink supply tube (211); the piston rod of the ink filling cylinder (221) is hollow, and the two ends of the piston rod of the ink filling cylinder (221) are respectively connected to the ink reservoir (232) and the ink filling head (222).

5. The ink filling device for precise ink filling according to claim 3, characterized in that, The synchronous clamping mechanism (3) includes a drive component (31), a lifting component (32), a limiting component (33), and a fixing component (34); the drive component (31) is connected to the drive end of the ink filling cylinder (221); the drive component (31) is connected to the lifting component (32), the limiting component (33) is connected to the drive component (31); the limiting component (33) is connected to the fixing component (34); the fixing component (34) is connected to the base (1); the drive component (31) is used to drive the lifting component (32), the lifting component (32) is used to lift the fixing component (34) to clamp and fix the pen barrel, and the limiting component (33) is used to limit the fixing component (34).

6. The ink filling device for precise ink filling according to claim 5, characterized in that, The drive assembly (31) includes a drive plate (311), a first rotating shaft (312), a connecting rod (313), and a second rotating shaft (314). The drive plate (311) is fixedly connected to the drive end of the ink filling cylinder (221). The lower end of the drive plate (311) is fixedly connected to the first rotating shaft (312). Both the left and right ends of the first rotating shaft (312) are rotatably connected to a connecting rod (313). The end of the connecting rod (313) that is not connected to the first rotating shaft (312) is rotatably connected to the second rotating shaft (314).

7. The ink filling device for precise ink addition according to claim 6, characterized in that, The lifting assembly (32) includes a lifting plate (321) and a lifting roller (323); the two lifting plates (321) are arranged symmetrically on the left and right; the lower end of the lifting plate (321) is fixedly connected to the base (1), and a lifting groove (322) is provided on the lifting plate (321) for limiting the sliding of the second rotating shaft (314); a lifting roller (323) for lifting the fixed assembly (34) is sleeved in the middle of the second rotating shaft (314).

8. The ink filling device for precise ink filling according to claim 7, characterized in that, The fixing component (34) includes an upper clamping plate (341) and a lower clamping plate (342); the upper clamping plate (341) is fixedly connected to the base (1); both the front and rear ends of the lower clamping plate (342) are connected to the limiting component (33); the lower end of the lower clamping plate (342) abuts against the lifting roller (323).

Citation Information

Patent Citations

  • Ink filling device

    CN221562596U