CN210309578U

CN210309578U - Spiral groove type ink supply pump

Info

Publication number: CN210309578U
Application number: CN201920275673.6U
Authority: CN
Inventors: 项建龙; 卢伟毅; 葛赛均
Original assignee: Hangzhou Cron Machinery & Electronics Co ltd
Current assignee: Hangzhou Cron Machinery & Electronics Co ltd
Priority date: 2019-03-05
Filing date: 2019-03-05
Publication date: 2020-04-14
Anticipated expiration: 2029-03-05

Abstract

The utility model relates to a printing supplies black equipment technical field, concretely relates to helicla flute formula supplies black pump, which comprises a pump body, be equipped with the columniform rotation chamber that is used for transmitting printing ink in the pump body, rotation chamber one side has the accent that the cooperation set up, the pump body sets up the ink inlet and the ink outlet of intercommunication rotation chamber, ink inlet corresponds the setting with the ink outlet, accent department has the sealing plug that seals rotation chamber, rotation chamber is equipped with and cooperates and be columniform rotary rod with rotation chamber, the chamber of storing up has been seted up on the rotary rod, store up the ink chamber and advance the ink outlet, ink outlet position corresponds, the rotary rod is close to the sealing plug and passes the sealing plug through the rotation axis and be connected with external driving system, a cavity has between the tip of rotary rod and the sealing plug, the pump body sets. This ink supply pump can guide the seepage, makes the seepage printing ink of ink supply pump flow back to into the china ink mouth to avoid printing ink to leak other positions via the sealing plug, lead to influencing the life of ink supply pump.

Description

Spiral groove type ink supply pump

Technical Field

The utility model relates to a printing ink supply equipment technical field, concretely relates to helicla flute formula supplies black pump.

Background

The ink is a stable coarse dispersion system composed of pigment as disperse phase and binder as continuous phase. Wherein the pigment imparts color to the ink and the binder provides the necessary transfer and drying properties of the ink. The color properties, flow properties, drying properties are the most basic and important properties of the ink. In addition, various resistances and stabilities of the ink are technical indicators relating to printing. Besides the main agent, the ink also comprises various additives as auxiliary agents for improving the performance of the ink and adjusting the printability of the ink. The pigment in the ink is a solid colored substance in the form of fine powder, and can be in the form of irregular shapes such as spheres, flakes and the like, and the diameter of the pigment particles is generally in the range of 10-7 to 10-5m microns.

In a digital accurate ink supply system of a printing machine, the input and the output of ink are realized mainly by the axial piston motion and the rotation of an injection shaft in an injection shaft sleeve, the motion of the injection shaft is realized by a motor, at least more than one seal is arranged at the inlet of the injection shaft to carry out sealing treatment on the injection shaft, but due to the particle toner characteristic of the ink, the elastic material is worn after running for a period of time; and by adopting hard wear-resistant materials, movement gaps exist, ink can leak reversely, and parts of a movement mechanism can be damaged along with the increase of leakage, so that the pump fails.

Generally, an ink supply pump adopted by the existing ink supply system has an ink leakage problem, the service life of the ink pump is reduced due to the leakage of the ink, and particularly the ink leakage problem in an injection pump is difficult to solve for the injection pump.

For example, chinese patent publication No. 107696704a, 2018-02-16, discloses an ink pump that is configured to clean leaked ink by providing a cleaning system to reduce damage to the ink pump by the leaked ink, which is not fundamentally eliminated. Therefore, the problem of leakage of the ink pump is still a key problem to be solved urgently in the ink supply system equipment.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a helicla flute formula ink supply pump in order to solve the problem that the ink supply pump in the present ink supply system has the printing ink seepage to lead to influencing equipment life.

In order to achieve the purpose of the utility model, the utility model adopts the following technical scheme:

the utility model provides a helicla flute formula supplies black pump, includes the pump body, is equipped with the columniform rotation chamber that is used for transmitting printing ink in the pump body, and rotation chamber one side has the accent that the cooperation set up, and accent department has the sealing plug that seals rotation chamber, and the sealing plug has a cavity in accent department, and the pump body sets up the seepage passageway with this cavity intercommunication.

Preferably, a cylindrical rotating rod matched with the rotating cavity is arranged in the rotating cavity, a cavity is arranged between the end part of the rotating rod close to the cavity opening and the sealing plug, and the leakage channel is communicated with the cavity.

Preferably, the pump body is provided with an ink inlet and an ink outlet which are communicated with the rotary cavity, the ink inlet and the ink outlet are correspondingly arranged, the rotary rod is provided with an ink storage cavity, and the ink storage cavity corresponds to the ink inlet and the ink outlet.

Preferably, the leakage channel communicates with the outside of the pump body.

Preferably, an ink inlet channel is arranged between the ink inlet and the rotary cavity on the pump body, and the leakage channel is communicated with the ink inlet channel.

Preferably, the rotary cavity is horizontally arranged, and the ink inlet is positioned at the upper part or the top of the pump body and is communicated with the rotary cavity through the ink inlet channel; the ink outlet is positioned at the lower part or the bottom of the pump body and is communicated with the rotary cavity through an ink outlet channel.

Preferably, the pump further comprises a precession device which is positioned outside the pump body and is used for enabling the rotating rod to reciprocate relative to the cavity opening.

Preferably, the precession device includes guide base and precession base, and the precession base gomphosis sets up in guide base and with guide base cooperation, and the rotation axis passes the precession base, and the precession base rotates along with the axle, and precession base outer wall is equipped with and encircles and form closed curvilinear figure guiding groove, and guide base is equipped with the guide piece with guiding groove complex.

Preferably, the curve fluctuation range of the guide groove is 1-3 mm.

Preferably, the rotating rod is connected with an external power system through a sealing plug by the rotating shaft near the cavity end.

Compared with the prior art, the utility model, beneficial effect is: can guide the seepage of confession china ink pump, make the seepage printing ink of confession china ink pump flow back to into the china ink mouth to avoid printing ink to leak other positions via the sealing plug, lead to influencing the life of confession china ink pump, it is further, can improve the operating performance of confession china ink pump from the on the other hand, and improve work efficiency.

Drawings

Fig. 1 is a schematic structural view of a pump body of the present invention;

FIG. 2 is a schematic structural view of the pump body cooperating with the rotary rod of the present invention;

fig. 3 is a schematic structural view of the rotary rod of the present invention;

fig. 4 is an end view of the rotary rod of the present invention;

FIG. 5 is a schematic diagram of the pump body fitting external structure of the present invention;

fig. 6 is a schematic structural view of the precession device of the present invention;

fig. 7 is a schematic structural view of the precession base and the rotation shaft according to the present invention;

fig. 8 is a partial schematic structural view of the contact surface between the guide base and the screw base according to the present invention.

In the figure: 401 pump body, 402 rotating cavity, 403 cavity opening, 404 ink inlet, 405 ink outlet, 406 sealing plug, 407 ink storage cavity, 408 leakage channel, 409 ink inlet channel, 410 rotating rod, 411 rotating shaft, 412 ink outlet channel, 413 screwing device, 414 guide base, 415 screwing base, 416 guide groove, 417 guide piece, 418 leakage cavity.

Detailed Description

The technical solution of the present invention is further described and illustrated by the following specific embodiments.

Example (b):

the spiral groove type ink supply pump is shown in fig. 1-8, and specifically comprises a pump body 401, a cylindrical rotating cavity 402 for transferring ink is arranged in the pump body 401, the rotating cavity 402 is a main working cavity, a cavity opening 403 is arranged on one side of the rotating cavity 402 in a matching mode, the cavity opening 403 is used for enabling components in the rotating cavity 402 to be in contact with the outside, a sealing plug 406 for sealing the rotating cavity 402 is arranged at the cavity opening 403, and the sealing plug 406 changes the rotating cavity 402 from semi-closed to closed.

An ink inlet 404 and an ink outlet 405 which are communicated with the rotary cavity 402 are arranged on the pump body 401, the ink inlet 404 and the ink outlet 405 are correspondingly arranged, and particularly the ink inlet 404 and the ink outlet 405 are correspondingly arranged so as to facilitate ink inlet and ink outlet.

A cylindrical rotating rod 410 which is matched with the rotating cavity 402 is arranged in the rotating cavity 402, and the matching arrangement is used for ensuring that ink cannot leak from a gap between the rotating rod 410 and the rotating cavity 402; the rotating rod 410 transfers the ink in the ink inlet 404 to the ink outlet 405 through the rotating action, specifically, an ink storage chamber 407 is opened on the rotating rod 410, the ink storage chamber 407 is a gap opened on the cylindrical rotating rod 410 along the cylindrical side wall thereof, and the gap is used as a space for temporarily storing the ink. The ink storage cavity 407 corresponds to the positions of the ink inlet 404 and the ink outlet 405, and only if the ink storage cavity 407 corresponds to the ink inlet 404, the ink storage cavity 407 can be used as a carrying cavity, and ink is noticed from the ink inlet 404 to the ink outlet 405.

One end of the rotating rod 410 close to the cavity opening 403 is connected through a rotating shaft 411, the rotating shaft 411 penetrates through the sealing plug 406 to be connected with an external power system, the external power system provides power, the rotating rod 410 is driven to rotate through the rotating shaft 411, and under the rotation of the rotating rod 410, ink is transferred from the ink inlet 404 to the ink outlet 405 through the ink storage cavity 407. Of course, an ink inlet channel 409 is provided between the ink inlet 404 and the rotary chamber 402 in the pump body 401, and the ink inlet 404 communicates with the rotary chamber 402 through the ink inlet channel 409.

Specifically, a cavity is formed between the end of the rotating rod 410 close to the sealing plug 406 and the sealing plug 406, and the cavity is used for storing ink leaked from the gap between the rotating rod 410 and the rotating cavity 402, and meanwhile, a leakage passage 408 communicated with the cavity is arranged on the pump body 401 and guides the ink out. Because a cavity is provided, which is actually the leakage cavity 418, leaked ink can be stored by introducing the leakage cavity 418, and the leakage channel 408 is provided to release the pressure in the leakage cavity 418, so that the pressure of the ink in the leakage cavity 418 to the space between the rotating shaft 411 and the sealing plug 406 is greatly reduced, and after the pressure is reduced, the degree of leakage of the ink from the space between the rotating shaft 411 and the sealing plug 406 is greatly reduced. The leakage cavity 418 is therefore designed to avoid ink leakage from between the rotation shaft 411 and the sealing plug 406 by releasing the pressure.

One way is to connect the leakage channel 408 with the outside of the pump body 401, and since the external pressure is 0, the purpose of releasing the pressure is achieved after the leakage channel is connected with the outside.

Another way is to connect the leakage channel 408 with the ink inlet channel 409, and since the pressure in the ink inlet channel 409 is relatively very small, the pressure in the leakage cavity 418 can be greatly released after the leakage channel 408 is connected with the ink inlet channel 409, so as to achieve the purpose of releasing the pressure.

Specifically, as shown in fig. 1 and 2, the rotating cavity 402 is horizontally arranged, and the ink inlet 404 is located at the top of the pump body 401 and is communicated with the rotating cavity 402 through an ink inlet channel 409; the ink outlet 405 is located at a lower portion or bottom of the pump body 401 and communicates with the rotation chamber 402 through an ink outlet passage 412.

On the basis, in order to improve the conveying effect of the rotating rod 410, the ink supply pump further comprises a precession device 413 which is positioned outside the pump body 401 and is used for promoting the rotating rod 410 to reciprocate, a thrust force can be formed by promoting the rotating rod 410 to reciprocate horizontally, the thrust force can promote the ink in the ink storage cavity 407 to be separated from the ink outlet channel 412 when the rotating rod 410 rotates at a high speed, and a vacuum is formed in the ink storage cavity 407, so that after the rotating rod 410 rotates, the ink in the ink storage cavity 407 is sucked into the ink inlet channel 409, the whole circulation is completed, and the purpose of conveying the ink is achieved.

Specifically, the precession device 413 includes a guide base 414 and a precession base 415, the precession base 415 is embedded in the guide base 414 and is disposed in cooperation with the guide base 414, the rotation shaft 411 passes through the precession base 415, the precession base 415 rotates along with the rotation shaft, a curve-shaped guide groove 416 formed in a surrounding manner is disposed on an outer wall of the precession base 415, and the guide base 414 is disposed with a guide 417 in cooperation with the guide groove 416. The guide piece 417 is fitted into the guide groove 416, and when the screw base 415 rotates, the guide piece 417 changes the position of the screw base 415 by the curved guide groove 416. That is, when the power system drives the rotating shaft 411 to rotate, the screw base 415 rotates along with the shaft, and since the screw base 415 is provided with the curved guide groove 416, the screw base 415 reciprocates along the axial direction of the rotating shaft 411 along the curve of the guide groove 416 in cooperation with the guide piece 417 of the guide base 414 engaged therewith. The reciprocating motion of the screw-in base 415 drives the reciprocating motion of the rotating shaft 411, and further drives the reciprocating motion of the rotating rod 410, which is represented by the change of the relative position of the ink storage chamber 407 to the ink outlet channel 412, and the change will form a certain pressure to force the ink in the ink storage chamber 407 to be removed.

How much ink in the ink reservoir 407 escapes is related to the reciprocating amplitude of the rotating lever 410, that is, the reciprocating amplitude of the precession base 415, that is, the ink supply efficiency of the ink supply pump is related to the reciprocating amplitude of the precession base 415. The amplitude of the reciprocation of the precession base 415 is related to the amplitude of the curve fluctuation of the guide groove 416, which is adjusted according to actual needs, where the amplitude of the curve fluctuation of the guide groove 416 is set to 1-3 mm.

With the above structure, the ink can be transferred from the ink inlet 404 to the ink outlet 405 by the rotation of the rotation lever 410, and the leakage path 408 is provided, so that the ink supply pump is ensured not to leak the ink at the joint of the sealing plug 406 and the rotation lever 411.

Although the present invention has been disclosed in the preferred embodiments, it is not intended to limit the present invention, and any person skilled in the art can use the above-mentioned method and technical contents to make possible changes and modifications to the technical solution of the present invention without departing from the spirit and scope of the present invention, therefore, any simple modification, equivalent changes and modifications made to the above embodiments by the technical substance of the present invention all belong to the protection scope of the technical solution of the present invention.

Claims

1. The spiral groove type ink supply pump is characterized by comprising a pump body (401), wherein a cylindrical rotary cavity (402) used for transmitting ink is arranged in the pump body (401), one side of the rotary cavity (402) is provided with a cavity opening (403) which is arranged in a matched mode, a sealing plug (406) used for sealing the rotary cavity (402) is arranged at the cavity opening (403), a cavity is formed in the sealing plug (406) at the cavity opening (403), and a leakage channel (408) communicated with the cavity is arranged in the pump body (401).

2. The spiral groove type ink supply pump according to claim 1, wherein a cylindrical rotating rod (410) is disposed in the rotating chamber (402), the rotating rod (410) is engaged with the rotating chamber (402), a cavity is formed between the end of the rotating rod (410) near the chamber opening (403) and the sealing plug (406), and the leakage passage (408) is communicated with the cavity.

3. The spiral groove type ink supply pump according to claim 2, wherein the pump body (401) is provided with an ink inlet (404) and an ink outlet (405) which are communicated with the rotary cavity (402), the ink inlet (404) and the ink outlet (405) are correspondingly arranged, the rotary rod (410) is provided with an ink storage cavity (407), and the ink storage cavity (407) corresponds to the positions of the ink inlet (404) and the ink outlet (405).

4. A spiral groove type ink supply pump according to claim 1, 2 or 3, wherein the leakage passage (408) is communicated with the outside of the pump body (401).

5. The spiral groove type ink supply pump according to claim 3, wherein an ink inlet passage (409) is provided between the ink inlet (404) and the rotary chamber (402) on the pump body (401), and the leakage passage (408) communicates with the ink inlet passage (409).

6. The spiral groove type ink supply pump according to claim 3 or 5, wherein the rotary chamber (402) is horizontally arranged, the ink inlet (404) is positioned at the upper part or top of the pump body (401) and is communicated with the rotary chamber (402) through the ink inlet channel (409); the ink outlet (405) is positioned at the lower part or bottom of the pump body (401) and is communicated with the rotating cavity (402) through an ink outlet channel (412).

7. A spiral groove type ink supply pump according to claim 1, 2, 3 or 5, further comprising a precession device (413) located outside the pump body (401) for urging the rotary rod (410) to reciprocate relative to the chamber opening (403).

8. The spiral groove type ink supply pump according to claim 7, wherein the precession device (413) comprises a guide base (414) and a precession base (415), the precession base (415) is embedded in the guide base (414) and is matched with the guide base (414), the rotating shaft (411) passes through the precession base (415), the precession base (415) rotates along with the rotating shaft, a curve-shaped guide groove (416) which is formed in a closed surrounding manner is arranged on the outer wall of the precession base (415), and the guide base (414) is provided with a guide piece (417) matched with the guide groove (416).

9. The spiral groove type ink supply pump according to claim 8, wherein the curved fluctuation range of the guide groove (416) is 1-3 mm.

10. A spiral groove type ink supply pump according to claim 2 or 3, wherein the end of the rotary rod (410) near the cavity opening (403) is connected with the external power system through the rotary shaft (411) and the sealing plug (406).