CN112622436A

CN112622436A - Printing equipment places board with ink horn that has auto-lock fixed establishment

Info

Publication number: CN112622436A
Application number: CN202110001698.9A
Authority: CN
Inventors: 赵永艳
Original assignee: Individual
Current assignee: Zhuhai Shengchang Printing Co ltd
Priority date: 2021-01-04
Filing date: 2021-01-04
Publication date: 2021-04-09
Anticipated expiration: 2041-01-04
Also published as: CN112622436B

Abstract

The invention relates to the technical field of self-locking of ink cartridges of printing machines, in particular to an ink cartridge placing plate with a self-locking fixing mechanism for printing equipment. According to the invention, by arranging the semicircular arc fixing plate and the penetrating insertion groove, after the replaced ink box main body is inserted into the movable metal plate, a worker can further fix the ink box main body by unfolding the semicircular arc fixing plate to one side so as to insert the semicircular arc fixing plate into the penetrating insertion groove, so that the situation that the ink box main body is deviated due to shaking in the normal printing process of the device main body is avoided, and the device main body can still take ink from the ink box main body after the movable metal plate with the replaced ink box main body is inserted into the printer main body, so that the device main body can perform normal printing without ink break.

Description

Printing equipment places board with ink horn that has auto-lock fixed establishment

Technical Field

The invention relates to the technical field of self-locking of ink cartridges of printing machines, in particular to an ink cartridge placing plate with a self-locking fixing mechanism for printing equipment.

Background

A printer is a machine that prints text and images. Modern printing presses typically consist of mechanisms for plating, inking, stamping, feeding (including folding), etc. The working principle is as follows: the characters and images to be printed are made into printing plate, then it is mounted on the printing machine, then the ink is coated on the position of the characters and images on the printing plate by manual or printing machine, then it is directly or indirectly transferred on the paper or other printing material (such as textile, metal plate, plastics, leather, wood plate, glass and ceramic) so as to reproduce the same printed matter as the printing plate. The invention and the development of the printing machine play an important role in the propagation of human civilization and culture.

And present most printing machines are at the in-process that uses, because the machine can produce great vibrations at the moving in-process, thereby make the ink horn of installing in the device exist with the device in set up connect the condition that the china ink mouth breaks away from each other to appear, thereby lead to the unable normal operating of device, make the staff need overhaul, thereby increase staff's work burden, and printing machine that can't use still can influence staff's work efficiency, consequently need design a printing apparatus and place the board with the ink horn that has auto-lock fixed establishment and solve above-mentioned problem.

Disclosure of Invention

The invention aims to provide an ink box placing plate with a self-locking fixing mechanism for printing equipment, which solves the problems that in the using process of most of the existing printing machines in the background art, the ink box arranged in the device is separated from an ink receiving port arranged in the device due to the fact that the machine generates large vibration in the operation process, the device cannot normally operate, workers need to overhaul, the workload of the workers is increased, and the working efficiency of the workers is affected by the printing machine which cannot be used.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a printing equipment places board with ink horn that has auto-lock fixed establishment, includes the device main part, the device main part includes the printing machine main part, the inside slidable mounting of printing machine main part has the removal metal sheet, the bottom of removing the metal sheet is installed supplementary connecting block, and the quantity of supplementary connecting block is two, the metal mounting panel is installed on the top of removing the metal sheet, and the quantity of metal mounting panel is four, the internally mounted of printing machine main part has fixed establishment, it has the ink horn main part to remove metal sheet internally mounted, the removal metal sheet internally mounted of ink horn main part bottom has ink horn positioning mechanism.

Preferably, the mounting groove has all been seted up at the both ends of metal mounting panel, the inside of mounting groove all evenly installs the centre gripping spring, the metal grip block is all installed to the one side that the centre gripping spring kept away from each other.

Preferably, metal sliding blocks are installed at the bottom ends of the auxiliary connecting blocks, sliding grooves are formed in one side, close to the metal sliding blocks, of the printing machine main body, and the metal sliding blocks extend to the inside of the sliding grooves.

Preferably, fixed establishment includes the arc moving slot, the inside slidable mounting of printing machine main part has the semicircle fixed plate, fixed auxiliary block is all installed at the both ends of semicircle fixed plate, the metal sliding block is installed to the one side that fixed auxiliary block kept away from each other, the sliding tray has all been seted up to the inside one side that is close to the metal sliding block of printing machine main part, and the metal sliding block extends to the inside of sliding tray, the ink horn main part top is close to one side of semicircle fixed plate and has been seted up and run through the insertion groove, semicircle fixed plate extensible to the inside of running through the insertion groove.

Preferably, fixed spring is all installed at the both ends of one side of semicircle fixed plate, metal hemisphere is all installed to fixed spring's the other end, run through insertion groove one side and all seted up the metal fixed block with one side of printing machine main part, and metal hemisphere extensible to the inside of metal fixed block.

Preferably, ink horn positioning mechanism includes the holding down plate, the removal metal sheet internally mounted of ink horn main part bottom has the holding down plate, the telescopic link is installed to the bottom of holding down plate, and the quantity of telescopic link is three and is connected with the bottom of printing machine main part, the surface of telescopic link all cup joints and installs first suit spring, the holding down plate bottom of telescopic link both sides all installs the slope depression bar, the slope depression bar is kept away from the removal metal sheet inside of one side each other and all is installed the location and is lifted the pole, the location is lifted the top of pole and is all installed the location carriage release lever.

Preferably, the surface of arc moving groove cup joints and installs fixed movable plate, the location carriage release lever surface on fixed movable plate top cup joints and installs the second cup joint spring, the location carriage release lever surface on second cup joint spring top all cup joints and installs and run through the locating plate, the inside metal installation piece that all installs of removal metal sheet on location carriage release lever top, the inside of metal installation piece all installs the promotion spring, the promotion spring is close to one side each other and all installs the location and promotes the piece, the location promotes the piece and keeps away from one side that promotes the spring and all install the metal stopper, the spacing groove has all been seted up to one side that the ink horn main part both sides are close to the metal stopper, and the metal stopper extends to the inside of spacing groove.

Preferably, the bottom ends of the positioning lifting rods are provided with positioning moving blocks, one sides of the positioning moving blocks are provided with return springs, and the other ends of the return springs are connected with the inner wall of the movable metal plate.

Preferably, the auxiliary propelling balls are arranged on one sides, close to each other, of the positioning moving rods penetrating through the top ends of the positioning plates.

Compared with the prior art, the invention has the beneficial effects that:

1. through being provided with metal sliding block and spout, the staff passes through the mutual cooperation between spout and the metal sliding block to make things convenient for the staff to come to remove the metal sheet and send into and can take out from the printing machine main part, thereby come to make that the staff can be more convenient send into the staff and change to the inside ink horn main part of printing machine main part.

2. Through being provided with the metal mounting panel, mounting groove and clamping spring, a plurality of metal mounting panels of installation on removing the metal sheet, elastic action through clamping spring, from place a plurality of ink horn main parts on removing the metal sheet to the staff and injecing, make this that the staff can be accurate come to install the ink horn main part to required place go, with this avoid can appear the ink horn main part can not carry out normal connection with the department of connecing the china ink mouth in the printing machine main part when the device main part carries out normal work, lead to the device main part can not carry out the condition emergence of normal use and printing.

3. Through being provided with the semicircle fixed plate and running through the insertion groove, the staff inserts the ink horn main part after having changed to the removal metal sheet back in, the accessible expandes the semicircle fixed plate to one side, thereby insert the semicircle fixed plate to running through in the insertion groove, from carrying out further fixed to the ink horn main part that the staff placed, thereby avoid carrying out the rocking that normally prints the in-process and cause in the device main part, can lead to the condition emergence that the skew takes place for the ink horn main part, thereby let the removal metal sheet after having changed the ink horn main part insert to the printing machine main part after, the device main part still can follow the ink horn main part and get black, thereby make the device main part can carry out normal printing and can not appear the condition of disconnected black.

4. Through being provided with the holding down plate, the pole is lifted in the location, the location carriage release lever, metal stopper and spacing groove, the staff is when carrying out the change of ink horn main part, the ink horn main part is pressed to the accessible, thereby make the location lift the pole and drive the location carriage release lever and mutually support with the metal stopper, thereby make metal stopper card go into to the spacing groove in, fix the ink horn main part that the staff put into from coming, come to carry out and fix the ink horn main part that the staff changed with this, from sending into the in-process of printing machine main part with the ink horn main part after, avoid the ink horn main part to take place the skew, lead to inside unable normal transportation of the inside ink of ink horn main part to the printing machine main part, lead to the unable efficient of carrying out of printing machine main part to print, make staff's working.

Drawings

FIG. 1 is a schematic, elevational, partial cross-sectional view of the structure of the present invention;

FIG. 2 is a schematic top view partially in cross section of the structure of the present invention;

FIG. 3 is a schematic top view of the fixing mechanism of the present invention;

FIG. 4 is a schematic cross-sectional front view of the positioning mechanism of the ink cartridge of the present invention;

FIG. 5 is an enlarged view of a portion of the structure A of FIG. 1 according to the present invention;

fig. 6 is a partially enlarged view of the structure at B in fig. 2 according to the present invention.

In the figure: 100. a device main body; 110. a printer main body; 111. moving the metal plate; 112. an auxiliary connecting block; 113. a metal slider; 114. a chute; 115. an ink cartridge main body; 116. a metal mounting plate; 117. mounting grooves; 118. a clamping spring; 119. a metal clamping block; 200. a fixing mechanism; 210. an arc-shaped moving groove; 211. a semicircular arc fixing plate; 212. a metal sliding block; 213. fixing the auxiliary block; 214. a sliding groove; 215. penetrating through the insertion groove; 216. fixing the spring; 217. a metal hemisphere; 218. a metal fixing block; 300. an ink cartridge positioning mechanism; 310. a lower pressing plate; 311. a telescopic rod; 312. a first nesting spring; 313. inclining the lower pressing rod; 314. positioning the lifting rod; 315. positioning a moving block; 316. a return spring; 317. fixing the moving plate; 318. a second sleeving connection spring; 319. the positioning plate penetrates through the positioning plate; 320. positioning the movable rod; 321. a metal mounting block; 322. a push spring; 323. positioning a pushing block; 324. a metal stopper; 325. a limiting groove; 326. the propelling ball is assisted.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, an embodiment of the present invention is shown:

an ink box placing plate with a self-locking fixing mechanism for printing equipment comprises a device main body 100, wherein the device main body 100 comprises a printer main body 110, a movable metal plate 111 is slidably arranged in the printer main body 110, an auxiliary connecting block 112 is arranged at the bottom end of the movable metal plate 111, the number of the auxiliary connecting blocks 112 is two, the bottom ends of the auxiliary connecting blocks 112 are all provided with metal sliding blocks 113, one side of the interior of the printing machine main body 110 close to the metal sliding blocks 113 is all provided with a sliding chute 114, and the metal sliding block 113 extends to the inside of the sliding slot 114, the worker can slide the metal sliding block 113 through the mutual fit between the sliding slot 114 and the metal sliding block 113, thereby facilitating the worker to take the moving metal plate 111 in and out of the printer main body 110, thereby allowing the worker to more conveniently replace the cartridge main body 115, which the worker has introduced into the interior of the printer main body 110.

Furthermore, the top end of the movable metal plate 111 is provided with four metal mounting plates 116, two ends of each metal mounting plate 116 are provided with a mounting groove 117, the inside of each mounting groove 117 is uniformly provided with a clamping spring 118, one side of each clamping spring 118 away from each other is provided with a metal clamping block 119, the inside of the movable metal plate 111 between the metal clamping blocks 119 is provided with an ink cartridge main body 115, the inside of the printer main body 110 is provided with a fixing mechanism 200, the inside of the movable metal plate 111 at the bottom end of the ink cartridge main body 115 is provided with an ink cartridge positioning mechanism 300, the metal mounting plates 116 mounted on the movable metal plate 111 limit the ink cartridge main bodies 115 placed on the movable metal plate 111 by the elastic force of the clamping springs 118, so that the worker can accurately mount the ink cartridge main bodies 115 to a required place, therefore, the situation that the ink box main body 115 can not be normally connected with the ink receiving port on the printing machine main body 110 when the device main body 100 normally works, and the device main body 100 can not be normally used and printed can be avoided.

Further, the fixing mechanism 200 includes an arc moving slot 210, a semi-arc fixing plate 211 is slidably installed inside the printer main body 110, fixing auxiliary blocks 213 are installed at both ends of the semi-arc fixing plate 211, a metal sliding block 212 is installed at a side where the fixing auxiliary blocks 213 are far away from each other, a sliding slot 214 is formed at a side inside the printer main body 110 close to the metal sliding block 212, the metal sliding block 212 extends into the sliding slot 214, a through insertion slot 215 is formed at a side of the top end of the ink cartridge main body 115 close to the semi-arc fixing plate 211, the semi-arc fixing plate 211 extends into the through insertion slot 215, fixing springs 216 are installed at both ends of a side of the semi-arc fixing plate 211, metal hemispheres 217 are installed at the other ends of the fixing springs 216, metal fixing blocks 218 are formed at a side of the through insertion slot 215 and a side of the printer main body 110, after the worker inserts the replaced ink cartridge main body 115 into the movable metal plate 111, the semicircular arc fixing plate 211 can be unfolded to one side by the worker, so that the semicircular arc fixing plate 211 is inserted into the penetrating insertion groove 215, and the ink cartridge main body 115 placed by the worker is further fixed, so that the shaking caused in the normal printing process of the device main body 100 is avoided, the situation that the ink cartridge main body 115 is deviated is caused, and after the movable metal plate 111 with the replaced ink cartridge main body 115 is inserted into the printer main body 110, the device main body 100 can still take ink from the ink cartridge main body 115, so that the device main body 100 can normally print without ink break.

Further, the ink cartridge positioning mechanism 300 includes a lower pressing plate 310, the lower pressing plate 310 is installed inside the movable metal plate 111 at the bottom of the ink cartridge main body 115, the bottom end of the lower pressing plate 310 is installed with a telescopic rod 311, and the number of the telescopic rods 311 is three and connected with the bottom end of the printing machine main body 110, the outer surfaces of the telescopic rods 311 are all sleeved with a first sleeving spring 312, the bottom ends of the lower pressing plates 310 at both sides of the telescopic rod 311 are all installed with an inclined lower pressing rod 313, the insides of the movable metal plate 111 at the side where the inclined lower pressing rods 313 are far away from each other are all installed with a positioning lifting rod 314, the bottom ends of the positioning lifting rods 314 are all installed with a positioning moving block 315, one side of the positioning moving block 315 is all installed with a return spring 316, the other end of the return spring 316 is all connected with the inner wall of the movable metal plate 111, the top ends of, the outer surface of the positioning moving rod 320 at the top end of the fixed moving plate 317 is sleeved with a second sleeving spring 318, the outer surfaces of the positioning moving rods 320 at the top ends of the second sleeving springs 318 are sleeved with through positioning plates 319, the sides, close to each other, of the positioning moving rods 320 at the top ends of the positioning plates 319 are all provided with auxiliary pushing balls 326, the inside of the moving metal plate 111 at the top end of the positioning moving rod 320 is all provided with metal mounting blocks 321, the inside of each metal mounting block 321 is provided with a pushing spring 322, the sides, close to each other, of the pushing springs 322 are all provided with a positioning pushing block 323, one side, far away from the pushing spring 322, of the positioning pushing block 323 is all provided with a metal stopper 324, one sides, close to the metal stoppers 324, of the two sides of the ink box main body 115 are all provided with a stopper slot 325, and the metal stoppers 324, therefore, the positioning lifting rod 314 drives the positioning moving rod 320 to be matched with the metal limiting block 324, so that the metal limiting block 324 is clamped into the limiting groove 325, the ink box main body 115 placed by a worker is fixed, the ink box main body 115 replaced by the worker is fixed, and then the ink box main body 115 is sent into the printing machine main body 110, so that the ink box main body 115 is prevented from being deviated, ink in the ink box main body 115 cannot be normally transported into the printing machine main body 110, the printing machine main body 110 cannot perform efficient printing, and the working strength of the worker is increased.

The working principle is as follows: when the device main body 100 is used for too long time and no ink exists in the ink box main body 115, the worker moves the semi-arc fixing plate 211 to one side, the worker can conveniently replace the ink box main body 115 sent into the printer main body 110 by the worker through the mutual matching between the sliding groove 114 and the metal sliding block 113, so that the worker can conveniently send the movable metal plate 111 into the printer main body 110 and take the movable metal plate 111 out of the printer main body 110, the worker can more conveniently replace the ink box main body 115 sent into the printer main body 110, the semi-arc fixing plate 211 is stored into the printer main body 110, the worker can outwards pull the movable metal plate 111 out, the worker can upwards lift the ink box main body 115, the metal limiting block 324 is separated from the limiting groove 325, the worker can lift the originally fixed ink box main body 115, and the ink box main body 115 can be replaced without being replaced by the worker After the plate 111 is placed, the worker presses the ink cartridge main body 115 downwards, so that the inclined pressing rod 313 pushes the positioning lifting rod 314 to move to one side in the process of moving the lower pressing plate 310 downwards, the positioning moving rod 320 moves upwards, the auxiliary pushing ball 326 mounted on the positioning moving rod 320 pushes the metal limit block 324 towards the limit groove 325, so that the metal limit block 324 and the limit groove 325 are matched with each other, the ink cartridge placed by the worker is fixed, when the ink cartridge main body 115 in the metal plate 111 is taken out and moved, the worker can move the ink cartridge main body 115 upwards, so that the elastic force of the first set spring 312 acts, the inclined pressing rod 313 cannot push the positioning lifting rod 314, so that the positioning lifting rod 314 is pushed by the positioning lifting rod 314 to move the positioning lifting rod 314 towards the telescopic rod 311 Therefore, the second sleeving spring 318 drives the positioning moving rod 320 to move downwards, so that the pushing spring 322 moves the metal limit block 324 in a direction away from the limit groove 325, and the metal limit block 324 is completely separated from the metal limit block 324, so that an operator can take out the ink cartridge main body 115 placed on the movable metal plate 111, and the ink cartridge main body 115 is replaced, and then the ink cartridge main body 115 is sent to the printing machine main body 110, so that the ink cartridge main body 115 is prevented from being deviated, ink inside the ink cartridge main body 115 cannot be normally transported to the printing machine main body 110, efficient printing cannot be performed on the printing machine main body 110, and the working strength of the operator is increased.

After the worker presses the ink cartridge main body 115 to fix the ink cartridge main body 115, the worker feeds the movable metal plate 111 with the ink cartridge main body 115 into the printer main body 110, and then moves the semi-arc fixing plate 211 to one side, so that the semi-arc fixing plate 211 is clamped into the through insertion slot 215, and the metal hemisphere 217 is matched with the metal fixing block 218 on the ink cartridge main body 115, so as to limit the position of the placed ink cartridge main body 115, thereby preventing the ink cartridge main body 115 from being shifted in position during the normal use of the device main body 100, which results in the situation that the device cannot normally discharge ink, and when the worker replaces the ink cartridge main body 115, the metal mounting plates 116 mounted on the movable metal plate 111 classify the ink cartridge main bodies 115 placed by the worker, the two metal clamping blocks 119 push towards the middle, so that the ink box main body 115 placed by the worker is positioned, the worker can conveniently and accurately enter the through insertion groove 215 formed in the ink box main body 115 in the process of closing the semi-arc fixing plate 211, the worker can conveniently fix the ink box main body 115 stored in the printer main body 110, the situation that the semi-arc fixing plate 211 cannot be inserted into the through insertion groove 215 is avoided, the worker can conveniently fix the replaced ink box main body 115, the shaking caused in the normal printing process of the device main body 100 is avoided, the situation that the ink box main body 115 deviates is caused, and the movable metal plate 111 after replacing the ink box main body 115 is inserted into the printer main body 110, the apparatus main body 100 can still take out ink from the cartridge main body 115, thereby enabling the apparatus main body 100 to perform normal printing without ink break.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a printing apparatus places board with ink horn that has auto-lock fixed establishment, includes device main part (100), its characterized in that: device main part (100) is including printing machine main part (110), the inside slidable mounting of printing machine main part (110) has removal metal sheet (111), remove the bottom of metal sheet (111) and install supplementary connecting block (112), and the quantity of supplementary connecting block (112) is two, metal mounting panel (116) is installed on the top of removing metal sheet (111), and the quantity of metal mounting panel (116) is four, the internally mounted of printing machine main part (110) has fixed establishment (200), it has ink horn main part (115) to remove metal sheet (111) internally mounted, the removal metal sheet (111) internally mounted of ink horn main part (115) bottom has ink horn positioning mechanism (300).

2. The ink cartridge placing plate having a self-locking fixing mechanism for a printing apparatus according to claim 1, wherein: mounting groove (117) have all been seted up at the both ends of metal mounting panel (116), clamping spring (118) are all evenly installed to the inside of mounting groove (117), metal grip block (119) are all installed to the one side that clamping spring (118) kept away from each other.

3. The ink cartridge placing plate having a self-locking fixing mechanism for a printing apparatus according to claim 1, wherein: metal sliding blocks (113) are all installed to the bottom of supplementary connecting block (112), inside one side that is close to metal sliding blocks (113) of printing machine main part (110) has all seted up spout (114), and metal sliding blocks (113) extend to the inside of spout (114).

4. The ink cartridge placing plate having a self-locking fixing mechanism for a printing apparatus according to claim 3, wherein: fixing mechanism (200) include arc moving groove (210), the inside slidable mounting of printer main part (110) has semicircle fixed plate (211), fixed auxiliary block (213) are all installed at the both ends of semicircle fixed plate (211), metal sliding block (212) are installed to the one side that fixed auxiliary block (213) kept away from each other, inside one side of being close to metal sliding block (212) of printer main part (110) has all seted up sliding tray (214), and metal sliding block (212) extend to the inside of sliding tray (214), one side that ink horn main part (115) top is close to semicircle fixed plate (211) has seted up and has run through insertion groove (215), semicircle fixed plate (211) extensible to the inside that runs through insertion groove (215).

5. The ink cartridge placing plate having a self-locking fixing mechanism for a printing apparatus according to claim 4, wherein: fixed spring (216) are all installed at the both ends of one side of semicircle fixed plate (211), metal hemisphere (217) are all installed to the other end of fixed spring (216), metal fixed block (218) have all been seted up with one side of printing machine main part (110) to run through insertion groove (215) one side, and metal hemisphere (217) extensible to the inside of metal fixed block (218).

6. The ink cartridge placing plate having a self-locking fixing mechanism for a printing apparatus according to claim 1, wherein: the ink box positioning mechanism (300) comprises a lower pressing plate (310), the lower pressing plate (310) is arranged inside a movable metal plate (111) at the bottom end of an ink box main body (115), telescopic rods (311) are arranged at the bottom end of the lower pressing plate (310), the number of the telescopic rods (311) is three, the telescopic rods are connected with the bottom end of the printer main body (110), first sleeving springs (312) are installed on the outer surface of each telescopic rod (311) in a sleeved mode, inclined lower pressing rods (313) are installed at the bottom ends of the lower pressing plates (310) on two sides of each telescopic rod (311), positioning lifting rods (314) are installed inside the movable metal plate (111) on one side, which is far away from each other, and positioning movable rods (320) are installed at the top ends of the positioning lifting rods (314).

7. The ink cartridge placing plate having a self-locking fixing mechanism for a printing apparatus according to claim 4, wherein: the outer surface of the arc-shaped moving groove (210) is sleeved with a fixed moving plate (317), the outer surface of a positioning moving rod (320) at the top end of the fixed moving plate (317) is sleeved with a second sleeving spring (318), the outer surface of the positioning moving rod (320) at the top end of the second sleeving spring (318) is sleeved with a penetrating positioning plate (319), metal installation blocks (321) are installed inside a movable metal plate (111) at the top end of the positioning moving rod (320), pushing springs (322) are installed inside the metal installation blocks (321), positioning pushing blocks (323) are installed on one sides of the pushing springs (322) close to each other, metal limit blocks (324) are installed on one sides of the positioning pushing blocks (323) far away from the pushing springs (322), limit grooves (325) are formed on one sides of the ink box main body (115) close to the metal limit blocks (324), and the metal stopper (324) extends to the inside of the stopper groove (325).

8. The ink cartridge placing plate having a self-locking fixing mechanism for a printing apparatus according to claim 6, wherein: the bottom end of the positioning lifting rod (314) is provided with a positioning moving block (315), one side of the positioning moving block (315) is provided with a return spring (316), and the other end of the return spring (316) is connected with the inner wall of the movable metal plate (111).

9. The ink cartridge placing plate having a self-locking fixing mechanism for a printing apparatus according to claim 7, wherein: and auxiliary propelling balls (326) are arranged on one sides, close to each other, of the positioning moving rods (320) penetrating through the top ends of the positioning plates (319).