阅读说明：本技术 一种扇形丝网印刷机的印刷装置及印刷机 (Printing device of fan-shaped screen printing machine and printing machine ) 是由 吴福富 吴子斌 于 2020-12-02 设计创作，主要内容包括：本发明公开了,一种扇形丝网印刷机的印刷装置,印刷装置包括印刷支架、印刷座、印刮机构及网板机构,印刮机构与网板机构均安装在印刷座上,印刷座设置有托架,托架上安装有电机安装板和第一旋转电机；网板机构具体包括弧形印刷网板、夹持装置、横梁及轴向连接板；轴向连接板与横梁固定连接,轴向连接板固定安装在旋转块上；印刮机构安装在弧形印刷网板的上方,印刮机构包括印刮固定架、印刮调节块及印刮执行单元；印刮执行单元进一步包括刮墨刀及回墨刀；本发明还涉及一种印刷机；本发明的印刮的运动轨迹为圆弧状,从而使得印刷区域为扇形,配合弧形丝印网板,将图文印刷到圆锥形物体上,具有结构简单、印刷精度高、自动化程度高且效率高的特点。(The invention discloses a printing device of a fan-shaped screen printing machine, which comprises a printing support, a printing seat, a printing scraping mechanism and a screen plate mechanism, wherein the printing scraping mechanism and the screen plate mechanism are both arranged on the printing seat; the screen plate mechanism specifically comprises an arc-shaped printing screen plate, a clamping device, a cross beam and an axial connecting plate; the axial connecting plate is fixedly connected with the cross beam and is fixedly arranged on the rotating block; the printing and scraping mechanism is arranged above the arc-shaped printing screen plate and comprises a printing and scraping fixing frame, a printing and scraping adjusting block and a printing and scraping execution unit; the printing and scraping execution unit further comprises a scraping blade and a return blade; the invention also relates to a printing machine; the printing scraper has an arc-shaped movement track, so that a printing area is in a fan shape, and pictures are printed on a conical object by matching with an arc-shaped silk screen plate.)

1. A printing device of a fan-shaped screen printing machine is characterized by comprising a printing support, a printing seat, a printing scraping mechanism and a screen plate mechanism, wherein two ends of the printing seat are arranged on the inner side of the printing support;

the printing and scraping mechanism and the screen plate mechanism are both arranged on a printing seat, the printing seat is provided with a bracket, a motor mounting plate and a first rotating motor are arranged on the bracket, the first rotating motor is fixedly arranged on the motor mounting plate, and the output end of the first rotating motor is connected with a rotating block;

the screen plate mechanism specifically comprises an arc-shaped printing screen plate, a clamping device, a cross beam and an axial connecting plate; the clamping device comprises a screen frame clamp and an adjusting clamp, two ends of the arc-shaped printing screen plate are respectively clamped by the screen frame clamp, the screen frame clamp is connected with the adjusting clamp, and the adjusting clamp is installed on the cross beam;

the axial connecting plate is fixedly connected with the cross beam and is fixedly arranged on the rotating block;

the printing and scraping mechanism is arranged above the arc-shaped printing screen plate and comprises a printing and scraping fixing frame, a printing and scraping adjusting block and a printing and scraping execution unit, and the printing and scraping fixing frame is arranged on the printing seat;

the printing and scraping execution unit further comprises a scraping blade and a returning blade, and the upper parts of the scraping blade and the returning blade are respectively and correspondingly connected with a scraping cylinder and a returning cylinder.

2. The fan-shaped screen printing machine according to claim 1, wherein a printing and scraping rod is arranged on the printing and scraping fixing frame, the printing and scraping adjusting block is mounted on the printing and scraping rod, and a third screw rod is connected between the printing and scraping adjusting block and the printing and scraping execution unit.

3. The printing device of the sector screen printing machine according to claim 1 or 2, further comprising an adjusting hand wheel connected to an input end of a reducer mounted on the printing support; the two end plates of the printing seat are respectively provided with a rack, the output end of the speed reducer is connected with a transmission rod with gears at two ends, and the racks are meshed with the gears.

4. The printing unit of the sector screen printing machine according to claim 1, wherein a first lead screw is further connected between the motor mounting plate and the bracket, and the first lead screw is used for adjusting the relative distance between the motor mounting plate and the bracket.

5. The printing unit of the sector screen printing machine according to claim 4, wherein a second screw is mounted between the axial connection plate and the rotation block, the second screw being used to adjust the relative distance between the axial connection plate and the rotation block.

6. A printing machine comprising a printing unit of a sector screen printing machine according to any one of claims 1 to 5.

Technical Field

The invention relates to the field of printing equipment, in particular to a printing device of a fan-shaped screen printing machine for printing conical products and a printing machine.

Background

Screen printing consists of five major elements, namely a screen plate, a squeegee blade, ink, a printing table, and a substrate. The basic principle of screen printing is as follows: the basic principle that the meshes of the image-text part and the non-image-text part of the screen printing plate are ink-permeable and ink-impermeable is utilized for printing.

Screen printing is widely used because of its advantages of wide application, good quality, low cost, etc. However, the existing screen printer can only satisfy the printing of cylindrical or planar objects, but does not have a good solution for the surface printing of conical objects, and usually, the screen printer for cylindrical objects is adopted for cutting and adjusting after printing, so that the problems of low printing precision, easy deformation of patterns and low efficiency exist.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides the printing device of the fan-shaped screen printing machine, the movement track of the printing scraper is arc-shaped, so that the printing area is fan-shaped, and the pictures and texts are printed on the conical object by matching with the arc-shaped screen printing screen plate. The method is realized by the following technical scheme:

a printing device of a fan-shaped screen printing machine is characterized by comprising a printing support, a printing seat, a printing scraping mechanism and a screen plate mechanism, wherein two ends of the printing seat are arranged on the inner side of the printing support; the printing and scraping mechanism and the screen plate mechanism are both installed on the printing seat, the printing seat is provided with a bracket, a motor installation plate and a first rotating motor are installed on the bracket, the first rotating motor is fixedly installed on the motor installation plate, and the output end of the first rotating motor is connected with a rotating block.

The screen plate mechanism specifically comprises an arc-shaped printing screen plate, a clamping device, a cross beam and an axial connecting plate; the clamping device comprises a screen frame clamp and an adjusting clamp, two ends of the arc-shaped printing screen are clamped by the screen frame clamp respectively, the screen frame clamp is connected with the adjusting clamp, and the adjusting clamp is installed on the cross beam.

The axial connecting plate is fixedly connected with the cross beam and is fixedly arranged on the rotating block; the printing and scraping mechanism is arranged above the arc-shaped printing screen plate and comprises a printing and scraping fixing frame, a printing and scraping adjusting block and a printing and scraping execution unit, and the printing and scraping fixing frame is arranged on the printing seat; the printing and scraping execution unit further comprises a scraping blade and a returning blade, and the upper parts of the scraping blade and the returning blade are respectively and correspondingly connected with a scraping cylinder and a returning cylinder.

Preferably, a printing and scraping rod is arranged on the printing and scraping fixing frame, the printing and scraping adjusting block is installed on the printing and scraping rod, and a third screw rod is connected between the printing and scraping adjusting block and the printing and scraping execution unit;

preferably, the printing device further comprises an adjusting hand wheel, the adjusting hand wheel is connected with an input end of a speed reducer, and the speed reducer is installed on the printing support; the two end plates of the printing seat are respectively provided with a rack, the output end of the speed reducer is connected with a transmission rod with gears at two ends, and the racks are meshed with the gears.

Preferably, a first screw rod is further connected between the motor mounting plate and the bracket, and the first screw rod is used for adjusting the relative distance between the motor mounting plate and the bracket.

Preferably, a second screw rod is installed between the axial connecting plate and the rotating block, and the second screw rod is used for adjusting the relative distance between the axial connecting plate and the rotating block.

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

the printing device that this technical scheme adopted has arc printing otter board, can rotate during the printing for the printing region is fan-shaped, to the screen printing of conical flask, has realized that the printing precision is high, degree of automation is high and efficient effect.

Drawings

FIG. 1 is a perspective view of the overall construction of a sector-shaped screen printing machine of the present invention;

FIG. 2 is an elevational view of the overall construction of the fan-shaped screen printing machine of the present invention;

FIG. 3 is an enlarged view of a portion of the invention at A in FIG. 2;

FIG. 4 is a perspective view of a portion of the construction of the fan-shaped screen printing press of the present invention;

FIG. 5 is a front elevational view, in partial construction, of the sector screen printing press of the present invention;

FIG. 6 is a block diagram of the top nozzle actuator of the present invention;

FIG. 7 is a block diagram of the transfer actuator of the present invention;

FIG. 8 is one of the structural views of the printing apparatus of the present invention;

FIG. 9 is a second block diagram of the printing apparatus of the present invention;

FIG. 10 is a third block diagram of a printing apparatus according to the present invention;

FIG. 11 is a fourth structural view of the printing apparatus of the present invention.

Description of reference numerals:

1 main supporting frame, 2 main motor, 3 top nozzle clamping device, 31 first cam, 32 first swing arm, 33 first section arm, 34 first cross bar, 35 first crank arm, 36 first connecting block, 37 first slide bar, 38 top nozzle mounting frame, 39 top nozzle, 4 transmission device, 41 second cam, 42 second swing arm, 43 second section arm, 44 telescopic arm, 45 transmission plate, 46 transmission bracket, 47 transmission swing arm, 48 first mechanical gripper, 49 second mechanical gripper, 5 printing device, 51 printing bracket, 52 printing seat, 521 bracket, 522 first rotating motor, 523 motor mounting plate, 524 rotating block, 525 first lead screw, 526 second lead screw, 527 transmission rod, 53 printing and scraping mechanism, 531 printing and scraping fixing frame, 532 printing and scraping adjusting block, 533 ink scraping knife, 534 ink returning knife, third lead screw, 54 screen plate mechanism, 541 arc printing screen plate, 542 screen frame clamp, 543 adjusting clamp, 544 beam, 545 axial connecting plate, 55 adjusting handwheel, 56 reducer, 6 printing position clamping frame, 61 printing position rotating top plate, 62 printing position driven top plate, 63 second rotating motor, 7 supporting top block, 8 supporting top plate, 9 feeding mechanical arm and 10 discharging mechanical arm.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In a preferred embodiment of the present invention, as shown in fig. 1-2, a sector-shaped screen printing machine includes a main support frame 1, a main motor 2, a top nozzle holding device 3, a transfer device 4, a printing station holding frame 6, and a printing device 5; the main motor 2, the top nozzle clamping device 3, the conveying device 4, the printing position clamping frame 6 and the printing device 5 are all arranged on the main supporting frame 1.

As shown in fig. 3-4, the tip holding device 3 includes a first cam 31, and the transfer device 4 includes a second cam 41; the main motor 2 transmits power to the tip holding device 3 and the transmitting device 4 through the first cam 31 and the second cam 41, respectively; after the conveying device 4 conveys the product to be printed to the printing position clamping frame 6, the conveying device 4 continues to convey the printed product out; the nozzle holding device 3 is used for supporting the product to be printed in the transmission process.

In practical applications, the main motor 2 transmits the driving force to the first cam 31 and the second cam 41 through a chain or a belt, a sprocket or a pulley, and a shaft-like component, wherein the specific transmission component is a common mode in the art, is not the core invention point of the present invention, and is not described in detail.

As shown in fig. 8-11, the printing device 5 includes a printing support 51, a printing seat 52, a printing scraping mechanism 53 and a screen mechanism 54, the printing support 51 is fixedly connected with the main support frame 1, and both ends of the printing seat 52 are installed inside the printing support 51;

the printing and scraping mechanism 53 and the screen mechanism 54 are both mounted on the printing seat 52, the printing seat 52 is provided with a bracket 521, a motor mounting plate 523 and a first rotating motor 522 are mounted on the bracket 521, the first rotating motor 522 is fixedly mounted on the motor mounting plate 523, and the output end of the first rotating motor 522 is connected with a rotating block 524;

the screen plate mechanism 54 specifically comprises an arc-shaped printing screen plate 541, a clamping device, a cross beam 544 and an axial connecting plate 545; the clamping device comprises a frame clamp 542 and an adjusting clamp 543, two ends of the arc-shaped printing screen 541 are respectively clamped by the frame clamp 542, the frame clamp 542 is connected with the adjusting clamp 543, and the adjusting clamp 543 is mounted on the cross beam 544. Specifically, the frame clamp 542 and the adjusting clamp 543 may be hinged or ball-jointed, so that the frame clamp 542 can be adjusted universally, so as to adjust the angle of the arc-shaped printing screen 541, and the adjusting clamp 543 may move on the cross beam 544 to adapt to the arc-shaped printing screens 541 with different sizes.

The axial connecting plate 545 is fixedly connected to the cross beam 544, and the axial connecting plate 545 is fixedly mounted on the rotary block 524. The printing and scraping mechanism 53 is installed above the arc-shaped printing screen 541, the printing and scraping mechanism 53 comprises a printing and scraping fixing frame 531, a printing and scraping adjusting block 532 and a printing and scraping execution unit, the printing and scraping fixing frame 531 is installed on the printing seat 52, a printing and scraping rod is arranged on the printing and scraping fixing frame 531, the printing and scraping adjusting block 532 is installed on the printing and scraping rod, and a third screw rod 535 is connected between the printing and scraping adjusting block 532 and the printing and scraping execution unit.

The printing and scraping execution unit further comprises a scraping blade 533 and an ink return blade 534, and the upper parts of the scraping blade 533 and the ink return blade 534 are respectively and correspondingly connected with a scraping cylinder and an ink return cylinder.

Specifically, as shown in fig. 3-4, the tip mouth clamping device 3 further includes a first swing arm 32, a first joint arm 33, a first cross rod 34, a first crank arm 35, a first connecting block 36, and a tip mouth executing mechanism, the middle portion of the first swing arm 32 is hinged to the main support frame 1, one end of the first swing arm 32 abuts against the first cam 31, the other end of the first swing arm 32 is hinged to one end of the first joint arm 33, and the other end of the first joint arm 33 is hinged to the first cross rod 34.

The middle part of the first crank arm 35 is hinged with the main support frame 1, one end of the first crank arm 35 is hinged with the first cross rod 34, the other end of the first crank arm 35 is arranged in an opening of the first connecting block 36, and the first connecting block 36 is fixedly arranged on the top nozzle executing mechanism.

Specifically, as shown in fig. 6, the top nozzle actuator includes a first slide rod 37, a top nozzle mounting bracket 38, and a plurality of top nozzles 39, the top nozzle mounting bracket 38 is fixedly mounted on the first slide rod 37, and the plurality of top nozzles are mounted side by side on the top nozzle mounting bracket 38.

The function of the top nozzle clamping device 3 is as follows: under the driving of the first cam 31, the first cross rod 34 is made to reciprocate transversely through the power transmission of the first swing arm 32 and the first knuckle arm 33, so that the first crank arm 35 drives the first connecting block 36 to reciprocate longitudinally, and as the first connecting block 36 is fixedly connected with the first sliding rod 37, the first sliding rod 37 drives the top nozzle executing mechanism to reciprocate, that is, the top nozzle 39 is made to reciprocate under the driving of the first cam 31.

Specifically, the main support frame 1 is further provided with a plurality of supporting top blocks 7 matched with the top nozzles 39, and a supporting top plate 8, wherein the supporting top blocks 7 or the supporting top plate 8 and the top nozzles 39 are used for clamping products to be printed. The supporting top block 7 is located at the feeding position of a product to be printed, the supporting top blocks 7 are multiple, and the supporting top plate 8 and the supporting top blocks 7 are located at the same horizontal position.

Specifically, the printing device 5 further includes an adjusting handwheel 55, the adjusting handwheel 55 is connected with an input end of a speed reducer 56, and the speed reducer 56 is mounted on the printing support 51; the two end plates of the printing seat 52 are respectively provided with a rack, the output end of the reducer 56 is connected with a transmission rod 527, the two ends of which are provided with gears, and the rack is meshed with the gears, so that the height of the printing seat 52 is adjusted through the adjusting hand wheel 55.

Specifically, as shown in fig. 9 and 11, a first screw 525 is further connected between the motor mounting plate 523 and the bracket 521, and the first screw 525 is used for adjusting a relative distance between the motor mounting plate 523 and the bracket 521; a second lead screw 526 is installed between the axial connecting plate 545 and the rotating block 524, and the second lead screw 526 is used for adjusting the relative distance between the axial connecting plate 545 and the rotating block 524. The motor mounting plate 523 and the bracket 521 are both provided with threaded holes matched with the first screw rod 525, and the axial connecting plate 545 and the rotating block 524 are provided with threaded holes matched with the second screw rod 526, so that two screw rod mechanisms are formed.

Through the arrangement, when the first rotating motor 522 drives the rotating block 524 to rotate, the arc-shaped printing screen 541 is driven to rotate; because the first screw rod 525 can adjust the relative distance between the motor mounting plate 523 and the bracket 521, the adjustment of the rotation center is realized after the position of the first rotating motor 522 is moved; because the position of the screen plate mechanism 54 is changed at the same time after the first lead screw 525 is adjusted, the second lead screw 526 has the following functions: by adjusting the relative distance between the axial connecting plate 545 and the rotating block 524, the position of the screen mechanism 54 is restored to the original position, so that the screen printing operation is performed conveniently, that is, by the cooperation of the first lead screw 525 and the second lead screw 526, the rotation center of the arc-shaped printing screen 541 is changed, and the position of the arc-shaped printing screen 541 is not changed.

Specifically, the conveying device 4 further comprises a second swing arm 42, a second knuckle arm 43, a telescopic arm 44 and a conveying executing mechanism, wherein the middle part of the second swing arm 42 is hinged to the main supporting frame 1, one end of the swing arm of the second swing arm 42 is abutted to the first cam 31, and the other end of the swing arm of the second swing arm 42 is hinged to one end of the second knuckle arm 43; one end of the telescopic arm 44 is hinged with one end of the second swing arm 42, and the other end of the telescopic arm 44 is mounted on the main supporting frame.

Specifically, as shown in fig. 7, the conveying actuator includes at least two conveying plates 45, at least two conveying brackets 46, and at least two conveying swing arms 47, the conveying plates 45 are fixedly mounted on the conveying swing arms 47, the conveying brackets 46 are mounted on the main support frame 1, and one end of each conveying swing arm 47 is hinged to the conveying bracket 46.

Further, the other end of the second link arm 43 drives the transfer swing arm 47 to swing reciprocally.

In order to place a product to be printed, the conveying plate 45 is provided with a plurality of supporting openings, and the supporting openings can be in a V shape, a U shape or a circular arc shape.

With the arrangement, the conveying device 4 is driven by the second cam 41, and the conveying swing arm 47 realizes rotary reciprocating motion through the transmission of the second swing arm 42, the second knuckle arm 43 and the telescopic arm 44, so that the conveying plate 45 finally moves left and right and moves up and down.

The left and right movement of the conveying plate 45 realizes that the product to be printed moves along the direction from the feeding end to the discharging end, and the moving process from bottom to top of the conveying plate 45 realizes that the product to be printed is placed in the supporting opening.

The description of the transfer process is made in connection with the above-mentioned tip mouth 39 and the supporting top block 7 or the supporting top plate 8:

in the initial stage, the product to be printed is placed in the a-th supporting opening of the conveying plate 45, the conveying plate 45 moves from left to right and from bottom to top, and at the moment, the product to be printed is clamped by the b-th top nozzle 39 and the b-th supporting top block 7 due to the fact that the top nozzle 39 continuously reciprocates longitudinally under the action of the first cam 31; then, after the conveying plate 45 returns back in a reciprocating cycle, the top nozzle 39 also reciprocates once, the product to be printed falls down from the b-th top nozzle 39 and is placed into the a + 1-th supporting opening of the conveying plate 45, and then is clamped by the b + 1-th top nozzle 39 and the b + 1-th supporting top block 7, so that the product to be printed moves forward by one top nozzle position along the direction from feeding to discharging; it should be noted that the supporting top block 7 is located behind the supporting top plate 8, and the product to be printed at the rear end is clamped between the top nozzle 39 and the supporting top plate 8.

Specifically, as shown in fig. 7, a first mechanical gripper 48 and a second mechanical gripper 49 are installed at the middle of one of the transfer plates 45, respectively on both sides of the printing station holder 6.

Specifically, as shown in fig. 5, the printing position holding frame 6 includes a printing position rotating top plate 61 and a printing position driven top plate 62, the printing position rotating top plate 61 is driven by a second rotating motor 63, the second rotating motor 63 drives the printing position rotating top plate 61 to rotate through a belt pulley, and the printing position driven top plate 62 is fixedly connected with the top nozzle mounting frame 38.

When waiting to print the product and being centre gripping on printing position holding frame 6, the rotation through printing position rotatory roof 61 drives the rotation of waiting to print the product for its surface can be by multi-angle silk screen printing.

In order to improve the functions of the invention, a feeding manipulator 9 and a discharging manipulator 10 are respectively arranged on two sides of the main support frame 1, the feeding manipulator 9 is used for clamping a product to be printed and then placing the product on the conveying plate 45, and the discharging manipulator 10 is used for unloading the printed product from the conveying plate 45 of the fan-shaped screen printing machine of the invention and placing the product in a storage device. The feeding robot 9 and the discharging robot 10 are obtained from the prior art and will not be described in detail since they are not the original point of the present invention.

The working principle of the technical scheme is as follows: the feeding manipulator 9 continuously places the product to be printed on the supporting opening of the conveying plate 45, the first cam 31 drives the top nozzle 39 to do longitudinal reciprocating motion under the driving of the main motor 2, the second cam 41 drives the conveying plate 45 to do rotary reciprocating motion, the product to be printed gradually moves forwards under the clamping of the top nozzle 39 and the supporting top block 7 or the supporting top plate 8 until the product to be printed is moved to the first mechanical gripper 48, and the product to be printed by the first mechanical gripper 48 is conveyed to the printing position clamping frame 6; at this time, the printing device 5 starts to work, the arc-shaped printing screen 541 rotates relative to a pivot under the driving of the first rotating motor 522, the doctor blade 533 is in contact with the arc-shaped printing screen 541, and the second rotating motor 63 drives the supporting top block 7 to rotate, so as to drive the product to be printed to rotate, so as to print the pattern on the arc-shaped printing screen 541 on the product.

Subsequently, the second mechanical gripper 49 receives the printed products from the printing station gripping frame 6 and delivers them onto the transfer plate 45, and the printed products are transported to the end of the transfer plate 45 under intermittent gripping of the top nozzle 39 and the supporting top plate 8 by the rotary reciprocating movement of the transfer plate 45 and finally discharged by the discharging robot 10.

The above are merely preferred embodiments of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.