CN112339427B

CN112339427B - Ink feeding anti-blocking mechanism for slow and continuous regulation of color printing machine body

Info

Publication number: CN112339427B
Application number: CN202011073615.9A
Authority: CN
Inventors: 牛志清
Original assignee: Guangdong Artech Printing Corp ltd
Current assignee: GUANGDONG ARTECH PRINTING Corp.,Ltd.
Priority date: 2020-10-10
Filing date: 2020-10-10
Publication date: 2021-12-07
Anticipated expiration: 2040-10-10
Also published as: CN112339427A

Abstract

The invention discloses an ink feeding anti-blocking mechanism for the slow and continuous regulation of a color printer body, which comprises an ink feeding port, a micro motor, an electromagnet, a protective shell, a pressing block switch and a heating element, wherein the top of the ink feeding port is fixedly provided with an inner pipe and an outer pipe, the inner pipe is positioned on the inner side of the outer pipe, the outer walls of the left side and the right side of the ink feeding port are fixedly provided with a shell, the inner parts of the ink feeding port and the shell are respectively and movably provided with a ball and an impeller, the ball and a central shaft of the impeller are fixedly connected, the central shaft end of the impeller positioned on the outer side of the shell is fixedly provided with a first gear, and the micro motor is fixedly arranged on the outer side walls of the ink feeding port and the shell. This ink feeding anti-blocking mechanism that color printing machine body slowly lasts regulation and control can change the velocity of flow and the flow of printing ink under natural state and artificial regulation and control effect, reduces the use wearing and tearing of ink feeding mechanism, prevents the jam that printing ink appears when using, can dredge the jam.

Description

Ink feeding anti-blocking mechanism for slow and continuous regulation of color printing machine body

Technical Field

The invention relates to the related technical field of color printing, in particular to an ink feeding anti-blocking mechanism for slowly and continuously regulating and controlling a color printing machine body.

Background

The color printing is a process method for forming colored characters and images by utilizing ink with different hues through a conversion form step, various patterns with different hues are formed by utilizing a repeated printing process, in the ink printing process equipment, in order to realize continuous flow guiding and accurate use of the ink and avoid the use waste of leakage of the ink, a specific ink pipeline is required to be arranged to realize the application of the ink, and the mixing change and color difference of the ink hues caused by mutual permeation and doping of different inks are avoided while the flow guiding of the ink is carried out.

However, the existing color printing body ink pipeline has the following problems when in use:

1. the flow rate of the ink is inconvenient to control when the ink is used, the internal structure is seriously abraded easily due to the flow rate problem when the ink is used for a long time, the flow rate and the flow rate are inconvenient to change by manual use, the ink is excessive when the ink is used, the use waste is caused, and the forming effect of printing is influenced;

2. the device is limited by the self components of the ink and the influence of the external environment temperature, when the device is used for a long time, the continuous circulation of the ink is easy to cause the blockage of the inside of a pipeline, the ink feeding function and the structure of the device are damaged, the dredging in the inside of the structure when the circulation of the ink is blocked is inconvenient, and the defect of use and the conventional use obstacle exist.

In order to solve the problems, innovative design is urgently needed on the basis of the original ink pipeline of the color printing machine body.

Disclosure of Invention

The invention aims to provide an ink inlet anti-blocking mechanism for slowly and continuously regulating a color printing machine body, and aims to solve the problems that the flow rate of ink is inconvenient to control when an ink pipeline of the color printing machine body is used, the internal structure is seriously abraded due to the flow rate problem easily during long-term use, the flow rate and the circulation are inconvenient to change by people, too much ink is used during use, the use waste is caused, the printing forming effect is influenced, the influence of the components of the ink and the external environment temperature is limited, the continuous circulation of the ink is easy to cause the blockage in the pipeline during long-term use, the ink inlet function and the structure of the device are damaged, the blockage in the structure is inconvenient to dredge when the ink circulation is blocked, and the use defect and the conventional use obstacle exist.

In order to achieve the purpose, the invention provides the following technical scheme: an ink feeding anti-blocking mechanism capable of continuously regulating and controlling the slow speed of a color printing machine body comprises an ink feeding port, a micro motor, an electromagnet, a protective shell, a press block switch and a heating element, wherein an inner pipe and an outer pipe are fixedly installed at the top of the ink feeding port, the inner pipe is positioned on the inner side of the outer pipe, shells are fixedly installed on the outer walls of the left side and the right side of the ink feeding port respectively, a ball and an impeller are movably installed inside the ink feeding port and the shells respectively, the ball is fixedly connected with a middle shaft of the impeller, a first gear is fixed at the middle shaft end of the impeller positioned on the outer side of the shell, guide pipes are connected between the top and the inner pipe of the shell as well as between the bottom of the shell and the ink feeding port in a penetrating manner, a liquid tank is arranged on the outer wall of the ball, the micro motor is fixedly installed on the outer side walls of the ink feeding port and the shells, a second gear is sleeved on the output shaft end of the micro motor, and a one-way bearing is installed at the joint of the middle shaft end of the second gear and the micro motor, and the second gear is meshed with the first gear.

Preferably, the inner tube and the outer tube are vertically and coaxially distributed, the inner tube and the outer tube are both made of nickel-containing stainless steel, and the lower end of the inner tube is connected with the inside of the ink inlet port in a penetrating manner.

Preferably, a relative rotation structure is arranged between the ball and the inner part of the ink inlet port, the ball and the middle shaft of the impeller are fixedly installed and arranged in a transverse and coaxial mode, the outer edge of the impeller is connected with the inner wall of the shell in a sliding fit mode, and the impeller and the flow guide pipe are distributed in a vertical staggered mode.

Preferably, the electromagnet is fixedly installed at the bottom between the inner pipe and the outer pipe, the electromagnet and the micro motor are located in the same circuit, a lantern ring is movably installed between the inner pipe and the outer pipe, a sliding groove is formed in the inner side wall of the inner pipe, a pushing ring is movably installed in the inner pipe, a positioning block is fixed on the outer wall of the pushing ring, and the positioning block is arranged inside the sliding groove.

Preferably, all embedded installing the sealing rubber circle on the inside wall and the lateral wall of the lantern ring, and all set up the sealed sliding connection who laminates between lantern ring and inner tube and the outer tube to embedded installing the magnet piece on the inside wall of the lantern ring, the bottom of the lantern ring is the same with the magnetism setting between the electro-magnet top moreover, and the electro-magnet is the loop configuration setting simultaneously.

Preferably, the inside wall of promotion ring sets up to serration structure, and promotes the locating piece and the spout and the magnet piece in the ring outside and be the one-to-one setting to constitute horizontal block, vertical sliding connection between locating piece and the spout, magnetic adsorption is connected between locating piece and the magnet piece moreover.

Preferably, the protective shell is installed at the upper position of the outer wall of the shell in an embedded mode, the press block switch is installed between the protective shell and the shell in a penetrating mode, the conductive copper sheets are fixed to one end, located at the protective shell, of the press block switch and the inner wall of the bottom of the protective shell, and the elastic piece is fixedly connected between the press block switch and the protective shell.

Preferably, one end of the press block switch, which is positioned on the inner side of the shell, is of an isosceles triangular structure, the press block switch and the protective shell form a penetrating relative telescopic structure, and the maximum retraction length of the press block switch and the protective shell is equal to the distance between the conductive copper sheets.

Preferably, the conductive copper sheet is electrically connected with the heating element, the heating element is fixedly arranged on the outer wall of the outer tube above the protective shell, and the inner wall of the heating element is fixedly arranged with the outer wall of the outer tube in a sticking manner.

Compared with the prior art, the invention has the beneficial effects that: the ink feeding anti-blocking mechanism with the slow and continuous regulation function for the color printing machine body can change the flow speed and the flow of ink under the natural state and the artificial regulation function, reduce the use abrasion of the ink feeding mechanism, prevent the ink from being blocked during use and dredge the blockage;

1. the impeller and the guide pipe are directly arranged in a vertically staggered manner, and the spiral distributed liquid tank structure on the outer wall of the ball is arranged, so that when ink circulates, the impeller and the ball perform synchronous rotary motion, the ink is conducted, meanwhile, the abrasion of the ink with too high flow rate is avoided, meanwhile, under the mutual meshing between the first gear and the second gear, the unidirectional slipping and unidirectional damping action of the unidirectional bearing, the first gear and the second gear in a natural state are meshed with each other to rotate, the flow rate of the ink is controlled, and the micro motor is installed, under the damping action of the unidirectional bearing, the rotating speed and the rotating direction of the impeller and the ball are changed through the first gear and the second gear, so that the manual use and control of the flow rate of the ink is achieved;

2. under the electrical connection action of the micro motor and the electromagnet, the micro motor and the electromagnet are synchronously opened and closed, due to the action of magnetic repulsion force between the electromagnet and the lantern ring and the action of magnetic adsorption force between the magnet block on the lantern ring and the positioning block on the push ring, the synchronous ascending motion of the lantern ring and the push ring is controlled, the synchronous descending motion of the lantern ring and the push ring is realized by the gas sealing treatment between the top of the lantern ring and the outer pipe and the inner pipe and the structural action of the triangular end of the telescopically installed press block switch, the work starting of a heating element when the lantern ring extrudes the press block switch is realized, the gas is heated by the heating element, the installation arrangement of the lantern ring and the push ring is changed by the expansion and contraction of the gas, and the synchronous descending motion of the lantern ring and the push ring can also be realized, the synchronous reciprocating ascending and descending motion action of the lantern ring and the push ring is realized, and the ink is effectively and quickly dredged in time by the push ring, the ink is prevented from being blocked at a local position during ink feeding.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic view of the structure of the draft tube of the present invention viewed from above;

FIG. 3 is a side view of the impeller mounting structure of the present invention;

FIG. 4 is a schematic view of a second gear and first gear transmission of the present invention;

FIG. 5 is a schematic front cross-sectional view of the inner and outer tubes of the present invention;

FIG. 6 is a schematic top view of the push ring assembly of the present invention.

In the figure: 1. an ink inlet port; 2. an inner tube; 3. an outer tube; 4. a housing; 5. a ball bearing; 6. an impeller; 7. a liquid bath; 8. a flow guide pipe; 9. a first gear; 10. a micro motor; 11. a second gear; 12. a one-way bearing; 13. an electromagnet; 14. a collar; 15. a chute; 16. a push ring; 17. positioning blocks; 18. a magnet block; 19. a protective shell; 20. a press block switch; 21. an elastic member; 22. a conductive copper sheet; 23. a heating element.

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, the present invention provides a technical solution: an ink feeding anti-blocking mechanism for continuously regulating and controlling the slow speed of a color printing machine body comprises an ink feeding port 1, an inner tube 2, an outer tube 3, a shell 4, balls 5, an impeller 6, a liquid tank 7, a flow guide tube 8, a first gear 9, a micro motor 10, a second gear 11, a one-way bearing 12, an electromagnet 13, a lantern ring 14, a sliding chute 15, a pushing ring 16, a positioning block 17, a magnet block 18, a protective shell 19, a press block switch 20, an elastic piece 21, a conductive copper sheet 22 and a heating element 23, wherein the inner tube 2 and the outer tube 3 are fixedly installed at the top of the ink feeding port 1, the inner tube 2 is positioned at the inner side of the outer tube 3, the shell 4 is fixedly installed on the outer walls of the left side and the right side of the ink feeding port 1, the balls 5 and the impeller 6 are movably installed inside the ink feeding port 1 and the shell 4 respectively, the balls 5 and the impeller 6 are fixedly connected between the center axes, the first gear 9 is fixed on the center axis of the impeller 6 positioned at the outer side of the shell 4, and all through connections have honeycomb duct 8 between the top of shell 4 and inner tube 2 and bottom and the ink inlet port 1, seted up cistern 7 on the outer wall of ball 5 simultaneously, micro motor 10 fixed mounting is on the lateral wall of ink inlet port 1 and shell 4, and micro motor 10's output shaft pot head is equipped with second gear 11, and one-way bearing 12 is installed to the axis end junction of second gear 11 and micro motor 10, and the meshing is connected between second gear 11 and the first gear 9.

Inner tube 2 and outer tube 3 are vertical coaxial distribution, and inner tube 2 and outer tube 3 are the stainless steel material constitution of nickeliferous to the lower extreme of inner tube 2 and the inside through connection who advances black port 1 make inner tube 2 and outer tube 3 accomplish the back in the equipment, and the stable slip of the lantern ring 14 of being convenient for carries out switching on of printing ink, and inner tube 2 and outer tube 3 can not cause and the magnetism between adsorb each other.

Set up to the relative revolution mechanic of laminating between ball 5 and the inside of ink inlet port 1, and be horizontal coaxial fixed mounting setting between ball 5 and the axis of impeller 6, and be connected for gliding laminating between the outer edge of impeller 6 and the inner wall of shell 4, and vertical dislocation distribution between impeller 6 and the honeycomb duct 8, when making the circulation of 8 internal carrying out printing ink, the printing ink velocity of flow in the honeycomb duct 8 can take ball 5 and impeller 6 to carry out synchronous rotation, realize under the conventional state, the restriction of printing ink velocity of flow, reduce its circulation speed.

Electromagnet 13 fixed mounting is in the bottom between inner tube 2 and outer tube 3, and electromagnet 13 and micro motor 10 are located same circuit to movable mounting has lantern ring 14 between inner tube 2 and the outer tube 3, has seted up spout 15 on the inside wall of inner tube 2 in addition, and movable mounting has push ring 16 in the inner tube 2, and is fixed with locating piece 17 on push ring 16's the outer wall, and locating piece 17 sets up in the inside of spout 15, makes electromagnet 13 push lantern ring 14 and push ring 16 carry out the position shift change.

All embedded installing the sealing rubber circle on the inside wall and the lateral wall of lantern ring 14, and all set up the sealed sliding connection who laminates between lantern ring 14 and inner tube 2 and the outer tube 3 to embedded installing magnet piece 18 on the inside wall of lantern ring 14, and the magnetism between the bottom of lantern ring 14 and the electro-magnet 13 top sets up the same, and electro-magnet 13 is the setting of loop configuration simultaneously, utilizes the magnetism repulsion force between lantern ring 14 and the electro-magnet 13, changes the mounted position of lantern ring 14.

The inside wall that promotes ring 16 sets up to serration structure, and the locating piece 17 and spout 15 and the magnet piece 18 that promote the ring 16 outside are the one-to-one setting, and constitute horizontal block between locating piece 17 and the spout 15, vertical sliding connection, and magnetic adsorption connects between locating piece 17 and the magnet piece 18, through the magnetic adsorption power between locating piece 17 and the magnet piece 18, make locating piece 17 and magnet piece 18 both carry out the change of synchronous position removal, make to promote ring 16 and carry out stable position removal change, carry out the promotion of printing ink, prevent the emergence of printing ink jam problem.

The protective shell 19 is installed on the upper position of the outer wall of the shell 4 in an embedded mode, the press block switch 20 is installed between the protective shell 19 and the shell 4 in a penetrating mode, the press block switch 20 is located at one end of the protective shell 19 and on the inner wall of the bottom of the protective shell 19, the conductive copper sheets 22 are fixed on the conductive copper sheets, the elastic piece 21 is fixedly connected between the press block switch 20 and the protective shell 19, and the heating element 23 is controlled to be opened and closed through the telescopic motion of the press block switch 20.

The pressing block switch 20 is located at one end of the inner side of the shell 4 and is arranged in an isosceles triangle structure, the pressing block switch 20 and the protective shell 19 form a penetrating relative telescopic structure, the maximum retraction length of the pressing block switch 20 and the protective shell 19 is equal to the distance between the conductive copper sheets 22, the position of the lantern ring 14 is moved to change the telescopic positioning state of the pressing block switch 20, and the effect of closing a circuit where the conductive copper sheets 22 are located is achieved.

The conductive copper sheets 22 are electrically connected with the heating element 23, the heating element 23 is fixedly arranged on the outer wall of the outer tube 3 above the protective shell 19, and the inner wall of the heating element 23 and the outer wall of the outer tube 3 are fixedly arranged in a sticking manner, so that the heating element 23 works and heats, gas is heated, and the lantern ring 14 is pushed to change the position of the lantern ring.

The working principle is as follows: when the ink-feeding anti-blocking mechanism with the slow speed continuously regulated and controlled by the color printing machine body is used, firstly, as shown in the figures 1-4, when the pipeline performs ink-feeding flow guide in a natural state, ink flows through the inner pipe 2 and the ink-feeding port 1 in sequence and is guided and discharged for use, the ink in the inner pipe 2 can be distributed into the shell 4 through the flow guide pipe 8, because the vertical staggered distribution is formed between the connection part of the flow guide pipe 8 and the shell 4 and the central shaft of the impeller 6, the impeller 6 generates rotary motion due to the flow impact of the ink, simultaneously, the ball 5 and the impeller 6 synchronously rotate, the rotation of the two blocks the flow rate of the ink, the flow of the ink is buffered, the flow rate is reduced, the use abrasion degree of the whole structure of the pipeline is reduced, meanwhile, the liquid groove 7 structure on the outer wall of the ball 5 is arranged, and the ball 5 can be driven to rotate by the self impact of the ink, the slow ink delivery is completed by utilizing the gap between the ball 5 and the ink inlet port 1 and the action of the liquid tank 7, at this time, as shown in fig. 4, the first gear 9 and the impeller 6 rotate anticlockwise, the second gear 11 rotates clockwise through the meshing transmission between the first gear 9 and the second gear 11, and the second gear 11 and the micro-motor 10 are installed through the one-way bearing 12, at this time, the one-way bearing 12 rotates and slips, so that the second gear 11 and the output shaft of the micro-motor 10 can rotate relatively statically, and when the circulation flow rate and the flow rate of the ink need to be artificially controlled, only the micro-motor 10 needs to be started, so that the micro-motor 10 works and the one-way bearing 12 performs one-way limiting, the purpose of synchronous working and rotation of the micro-motor 10 and the second gear 11 is achieved, and the first gear 9, the impeller 6 and the ball 5 are driven to rotate, the flow speed and the flow quantity of the ink are changed by controlling the rotation speed of the ink;

according to fig. 1 and 5-6, when the micro motor 10 is started, the electromagnet 13 in the same circuit of the micro motor 10 works to generate magnetic force, the position of the lantern ring 14 is changed by utilizing the magnetic repulsion effect between the electromagnet 13 and the lantern ring 14, so that the lantern ring 14 slides away from the electromagnet 13, a pore is arranged at the joint of the electromagnet 13 and the outer pipe 3, so that the space between the inner pipe 2 and the outer pipe 3 and below the lantern ring 14 is not in a sealed state at the moment, gas can freely enter and exit, and the space between the inner pipe 2 and the outer pipe 3 and above the lantern ring 14 is sealed, when the lantern ring 14 moves upwards, the gas in the top space is compressed, and due to the magnetic adsorption connection of the magnet block 18 and the positioning block 17 embedded on the inner side wall of the lantern ring 14, the positioning block 17 is clamped and slides with the chute 15, the push ring 16 is driven to move vertically, and the movement of the push ring 16 and the fine tooth structure action of the inner wall are utilized, pushing the ink in the inner tube 2 to complete blocking and dredging of the ink, and along with the upward movement of the lantern ring 14, the lantern ring 14 extrudes the triangular end of the press block switch 20, so that the press block switch 20 stretches under the action of the protective shell 19, when the elastic part 21 deforms, the conductive copper sheets 22 are in mutual contact to close a circuit where the heating element 23 is located, the heating element 23 works to generate heat energy, so that the gas between the inner tube 2 and the outer tube 3 and the lantern ring 14 expands, the lantern ring 14 pushes downwards under the change of the air pressure, meanwhile, the push ring 16 also moves and changes the position, when the lantern ring 14 does not press the press block switch 20 any more, the heating element 23 stops working, the heating element 23 also can heat the ink in the inner tube 2, and the ink also can take away the heat energy of the expanding gas among the inner tube 2, the outer tube 3 and the lantern ring 14, so that the gas shrinks, the lantern ring 14 moves upwards again under the action of the electromagnet 13, and the lantern ring 14 and the pushing ring 16 are lifted and lowered back and forth under the repeated action, so that continuous anti-blocking and dredging of the ink are performed.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a color press organism is slowed down and is lasted into black anti-blocking mechanism of regulation and control, includes into black port (1), micro motor (10), electro-magnet (13), protecting crust (19), briquetting switch (20) and heating element (23), its characterized in that: the ink inlet port (1) is fixedly provided with an inner tube (2) and an outer tube (3) at the top, the inner tube (2) is positioned at the inner side of the outer tube (3), the outer walls of the left side and the right side of the ink inlet port (1) are fixedly provided with a shell (4), the inner parts of the ink inlet port (1) and the shell (4) are respectively and movably provided with a ball (5) and an impeller (6), the ball (5) and the impeller (6) are fixedly connected with each other, the impeller (6) is fixedly provided with a first gear (9) at the middle shaft end positioned at the outer side of the shell (4), a guide tube (8) is respectively communicated between the top of the shell (4) and the inner tube (2) and between the bottom of the shell (4) and the ink inlet port (1), meanwhile, the outer wall of the ball (5) is provided with a liquid tank (7), the micro motor (10) is fixedly arranged on the outer side wall of the shell (4), and a second gear (11) is sleeved at the output shaft end of the micro motor (10), a one-way bearing (12) is arranged at the joint of the second gear (11) and the middle shaft end of the micro motor (10), and the second gear (11) is meshed with the first gear (9);

the inner pipe (2) and the outer pipe (3) are vertically and coaxially distributed, the inner pipe (2) and the outer pipe (3) are both made of nickel-containing stainless steel materials, and the lower end of the inner pipe (2) is communicated with the interior of the ink inlet port (1);

a relatively rotating structure which is attached to the inside of the ink inlet port (1) is arranged between the ball (5) and the inside of the ink inlet port, the ball (5) and a middle shaft of the impeller (6) are fixedly installed and arranged in a transverse and coaxial mode, the outer edge of the impeller (6) is connected with the inner wall of the shell (4) in a sliding attaching mode, and the impeller (6) and the flow guide pipe (8) are distributed in a vertically staggered mode;

the electromagnet (13) is fixedly arranged at the bottom between the inner tube (2) and the outer tube (3), the electromagnet (13) and the micro motor (10) are located in the same circuit, a lantern ring (14) is movably arranged between the inner tube (2) and the outer tube (3), a sliding groove (15) is formed in the inner side wall of the inner tube (2), a pushing ring (16) is movably arranged in the inner tube (2), a positioning block (17) is fixed on the outer wall of the pushing ring (16), and the positioning block (17) is arranged inside the sliding groove (15);

sealing rubber rings are embedded in the inner side wall and the outer side wall of the lantern ring (14), the inner pipe (2) and the outer pipe (3) are in sealed sliding connection in a fit mode, a magnet block (18) is embedded in the inner side wall of the lantern ring (14), the bottom of the lantern ring (14) is the same as the top of the electromagnet (13) in magnetic arrangement, and the electromagnet (13) is arranged in an annular structure;

the protective shell (19) is embedded in the upper position of the outer wall of the outer pipe (3), a press block switch (20) is arranged between the protective shell (19) and the outer pipe (3) in a penetrating mode, conductive copper sheets (22) are fixed on one end of the protective shell (19) and the inner wall of the bottom of the protective shell (19) of the press block switch (20), and an elastic piece (21) is fixedly connected between the press block switch (20) and the protective shell (19);

the pressing block switch (20) is located at one end of the inner side of the outer pipe (3) and is arranged in an isosceles triangular structure, the pressing block switch (20) and the protective shell (19) form a penetrating relative telescopic structure, the maximum retraction length of the pressing block switch (20) and the protective shell (19) is equal to the distance between the conductive copper sheets (22), the conductive copper sheets (22) are electrically connected with the heating element (23), and the heating element (23) is fixedly installed on the outer wall of the outer pipe (3) above the protective shell (19).

2. The ink feeding and blocking preventing mechanism for the color printing machine body to regulate and control the slow speed continuously as claimed in claim 1, is characterized in that: the inner side wall of the pushing ring (16) is of a fine-toothed structure, positioning blocks (17) on the outer side of the pushing ring (16) are arranged in a one-to-one correspondence mode with the sliding grooves (15) and the magnet blocks (18), the positioning blocks (17) are in transverse clamping connection with the sliding grooves (15) and are in vertical sliding connection, and the positioning blocks (17) are in magnetic adsorption connection with the magnet blocks (18).

3. The ink feeding and blocking preventing mechanism for the color printing machine body to regulate and control the slow speed continuously as claimed in claim 1, is characterized in that: the inner wall of the heating element (23) and the outer wall of the outer tube (3) are fixedly arranged in a sticking way.