CN209904207U

CN209904207U - Belt wheel type pad printing machine

Info

Publication number: CN209904207U
Application number: CN201822140977.XU
Authority: CN
Inventors: 陈超
Original assignee: Dongguan Xuan Chi Intelligent Technology Co Ltd
Current assignee: Dongguan Xuan Chi Intelligent Technology Co Ltd
Priority date: 2018-12-19
Filing date: 2018-12-19
Publication date: 2020-01-07
Anticipated expiration: 2028-12-19

Abstract

The utility model discloses a belt wheel formula bat printing machine, this bat printing machine include the frame and be located platemaking platform, profile modeling tool, printing mechanism in the frame, wherein: the plate printing table is detachably arranged on the rack, and a pit for storing ink is formed in the plate printing table; the profiling jig is used for fixing a workpiece to be printed; the printing mechanism is including being used for following absorb printing ink on the ink pad platform and will printing ink is printed to printing portion on the work piece with be used for the drive printing portion round trip in the ink pad platform with first drive assembly between the profile modeling tool, printing portion includes that a plurality of rotatable roller and cover establish a plurality of epaxial bat printing area. The utility model discloses a carry out high accuracy processing to full-size, single curved surface, many curved surfaces product, the precision is high, the stable performance.

Description

Belt wheel type pad printing machine

Technical Field

The utility model relates to a lithography apparatus field, concretely relates to belt pulley formula bat printing machine.

Background

Pad printing machines are printing devices that were introduced into China in the last 80 th century. The pad printing machine adopts indirect concave rubber head printing technology, and is suitable for plastic cement, toys, glass, metal, ceramic, electronics, IC encapsulation and the like. It is a main method for printing and decorating the surface of various objects. The printing machine can be used for printing on products with small areas and concave-convex surfaces, has obvious advantages, makes up for the defects of screen printing, and therefore develops rapidly in recent years.

At present, yellow light spraying (spraying and exposure developing) is used for processing in the market, the processing cost is high, the yield is low, the precision is poor, and the method cannot be applied to high-precision processing of full-size, single-curved-surface and multi-curved-surface products.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a band pulley formula bat printing machine aims at solving the problem that lithography apparatus can't be applicable to the high accuracy processing of full-size, single curved surface, many curved surfaces product among the prior art.

In order to achieve the above object, the utility model provides a belt wheel formula bat printing machine, this bat printing machine include the frame and be located platemaking platform, profile modeling tool, printing mechanism in the frame, wherein:

the plate printing table is detachably arranged on the rack, and a pit for storing ink is formed in the plate printing table;

the profiling jig is used for fixing a workpiece to be printed;

the printing mechanism is including being used for following absorb printing ink on the ink pad platform and will printing ink is printed to printing portion on the work piece with be used for the drive printing portion round trip in the ink pad platform with first drive assembly between the profile modeling tool, printing portion includes that a plurality of rotatable roller and cover establish a plurality of epaxial bat printing area.

Preferably, the first drive assembly comprises:

the first guide rail is arranged on the rack;

the first X-axis sliding block is connected with the first guide rail in a sliding mode along the X-axis direction;

the first Z-axis sliding block is connected with the first X-axis sliding block in a sliding mode along the Z-axis direction, the X-axis direction is perpendicular to the Z-axis direction, the roll shafts are rotatably mounted on the first Z-axis sliding block, and the motor is fixed on the first Z-axis sliding block.

Preferably, the pad printing machine further comprises a scraper mechanism, wherein the scraper mechanism comprises a second driving assembly and a cutter connected with the output end of the second driving assembly, and the cutter can move along the ink placing surface of the plate printing table under the driving of the second driving assembly so as to brush ink flatly.

Preferably, the second drive assembly comprises:

the second guide rail is arranged on the rack;

the second X-axis sliding block is connected with the second guide rail in a sliding mode along the X-axis direction;

and the second Z-axis sliding block is in sliding connection with the second X-axis sliding block along the Z-axis direction, the X-axis direction is vertical to the Z-axis direction, and the cutter is arranged on the second Z-axis sliding block.

Preferably, the transfer printing belt comprises an elastic substrate layer and a silica gel layer arranged on the substrate layer.

Preferably, the motion transmission mode of the transfer printing belt and the roller shaft surface is friction transmission.

The utility model discloses technical scheme stores printing ink through adopting the type platform to set up the pit and forms and treat the printing pattern, and the bat printing area moves type platform department along type platform surface walking, absorbs printing ink, has absorbed and has moved work piece department again after the printing ink, along the work piece surface walking, with printing ink printing to the work piece on to the realization is to full-size, single curved surface, the high accuracy processing of many curved surfaces product.

Drawings

FIG. 1 is a schematic structural view of an embodiment of a belt wheel type pad printing machine according to the present invention;

FIG. 2 is a schematic structural view of FIG. 1 in another operating state;

FIG. 3 is a schematic structural view of another embodiment of the belt wheel type pad printing machine of the present invention;

FIG. 4 is a schematic structural view of FIG. 3 in another operating state;

fig. 5 is a schematic structural view of another embodiment of the roll shaft and the pad printing belt of the present invention.

Detailed Description

In the following, the embodiments of the present invention will be described in detail with reference to the accompanying drawings, and it is obvious that the embodiments are only some embodiments, not all embodiments, of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The utility model provides a belt wheel formula bat printing machine, referring to fig. 1 and 2, this bat printing machine includes frame 10 and is located the type platform 20, profile modeling tool 30, the printing mechanism 40 on frame 10.

Wherein the cliche 20 is detachably mounted on the frame 10, and the cliche is provided with pits for storing ink, which constitute a pattern to be printed, such as various patterns, or date, production lot, etc. The ink is added to the pad 20 in the following ways: the manipulator ejects ink along the pit area of the plate pad 20; the ink is brushed on the whole surface by using an oil cup (a scraper is matched with the oil cup) and the ink residue on other surfaces except the pits is ensured not to be left; the bottom of the pit corresponding to the plateform 20 is provided with an ink injection hole, and ink is injected from the bottom; other addition modes are also possible and are not described in detail herein. After the ink is applied to the pad 20, it is typically necessary to scrape the ink with a doctor blade to evenly distribute the ink within the depressions. Specifically, the ink is printed on the plate table 20 (without concave pits on the plane) by scraping the ink with a scraper inside the steel mesh plate (similar to a screen printing method), and then the ink is adsorbed by the printing mechanism 40 to be printed on the product. It is also possible to print ink on the printing mechanism 40 using the principle of printing.

The profiling fixture 30 is used for fixing a workpiece 50 to be printed, wherein the workpiece 50 can be glass, plastic and the like; the copying jig 30 is manufactured in accordance with the shape of the workpiece 50 so as to place the workpiece 50; it is possible that the profiling jig 30 has a receiving groove for placing the workpiece 50 so as to hold the workpiece 50 against displacement.

The printing mechanism 40 includes a printing portion 41 for sucking ink from the cliche plate 20 and printing the ink on the workpiece 50, and a first driving unit (not shown) for driving the printing portion 41 to and from between the cliche plate 20 and the copying jig 30, and the printing portion 41 includes a plurality of rotatable roller shafts 41a and a transfer belt 41b fitted over the plurality of roller shafts 41 a. The printing mechanism 40 is a moving mechanism, and the plate table 20 and the copying jig 30 are fixed. The first driving assembly has freedom degrees in two directions of an X axis and a Z axis and can be respectively driven by a motor. It is possible that the printing portion 41 is moved in the X-axis and Z-axis directions by the driving of the first driving unit, the Z-axis applies a pressure downward to the product, and the pad printing belt 41b is moved by a frictional force generated between the product and the pad printing belt 41 b. It is also possible to directly drive the roller shaft 41a to rotate by using a motor, an output shaft of the motor is connected to the roller shaft 41a, and the roller shaft 41a rotates to drive the transfer belt 41b to rotate. The plurality of rollers 41a move the transfer belt 41b on the plate table 20 to suck ink and on the workpiece 50 to print ink. The plurality of rollers 41a can adjust the pitch thereof and can adjust the tightness of the transfer belt 41 b. The roller shafts 41a here may be provided in two, such as fig. 3 and 4; three can also be provided, such as fig. 1 and 2; four, such as 5 … … in FIG. 5, can be provided, which is not described in detail herein. The motor is a servo motor with high precision, and the rotating speed, the position and the like of the roll shaft can be accurately controlled. After the ink is printed on the workpiece 50, the ink can be dried by adopting drying modes such as infrared, ultraviolet, hot printing and the like, so that the ink is prevented from being bonded with dust, and meanwhile, the ink is prevented from flowing or being in bad points.

The first driving assembly may be a combination of a rodless cylinder and a robot, a slider of the rodless cylinder is connected to a base of the robot to drive the robot to move in a horizontal direction, and the printing portion 41 is mounted on an execution end of the robot. It is possible that the printing portion 41 is fixed to a mounting frame, for example, a roller 41a is rotatably provided on the mounting frame, a motor for controlling the rotation of the roller 41a is fixed to the mounting frame, and a robot arm is responsible for controlling the vertical movement of the printing portion 41.

In a preferred embodiment, the first drive assembly comprises: a first guide rail disposed on the frame 10; a first X-axis slider slidably coupled to the first guide rail along an X-axis direction (as shown in FIG. 1); the first Z-axis sliding block is connected with the first X-axis sliding block in a sliding mode along the Z-axis direction (as shown in figure 1), the X-axis direction is perpendicular to the Z-axis direction, the plurality of roller shafts are rotatably installed on the first Z-axis sliding block, and the motor is fixed on the first Z-axis sliding block.

In this embodiment, the first guide rail is horizontally installed on the frame 10, the first X-axis slider is slidably engaged with the first guide rail, and it is possible to provide a motor at one end of the first guide rail, an output shaft of the motor is connected to a ball screw through a coupling, a nut on the ball screw is fixed to the first X-axis slider, and the horizontal reciprocating motion of the printing portion 41 is realized by driving of the motor. Similarly, the first X-axis slider is further provided with a guide rail, and the first Z-axis slider is slidably engaged with the guide rail, and it is possible that a motor is disposed at one end of the first X-axis slider, an output shaft of the motor is connected to a ball screw through a coupling, a nut on the ball screw is fixed to the first Z-axis slider, and the vertical reciprocating motion of the printing portion 41 is realized by the driving of the motor.

The first Z-axis slider can not only complete the curve-following path in cooperation with the first X-axis slider, but also control the pressing force (compression amount) of the transfer tape 41b, thereby controlling the printing effect.

In a preferred embodiment, as shown in fig. 3 and 4, the pad printing machine further comprises a scraper mechanism 60, the scraper mechanism 60 comprising a second driving assembly (not shown) and a cutter 61 connected to an output end of the second driving assembly, the cutter 61 being movable along the ink placement surface of the plate table 20 under the driving of the second driving assembly to brush the ink.

In this embodiment, the second drive assembly can also adopt the mode of no pole cylinder and manipulator combination, and the slider of no pole cylinder is connected with the base of manipulator, drives the manipulator and moves on the horizontal direction, and cutter 61 installs on the execution of manipulator is terminal, and the manipulator is responsible for controlling the motion of cutter 61 in the vertical direction.

In a preferred embodiment, the second drive assembly comprises: a second guide rail disposed on the frame 10; the second X-axis sliding block is connected with the second guide rail in a sliding manner along the X-axis direction; and the second Z-axis sliding block is in sliding connection with the second X-axis sliding block along the Z-axis direction, the X-axis direction is vertical to the Z-axis direction, and the cutter is arranged on the second Z-axis sliding block.

In this embodiment, similar to the first driving assembly, the second guide rail of the second driving assembly is horizontally installed on the frame 10, and the second X-axis slider is slidably engaged with the second guide rail, and it is possible to provide a motor at one end of the second guide rail, an output shaft of the motor is connected to a ball screw through a coupling, a nut on the ball screw is fixed on the second X-axis slider, and the horizontal reciprocating motion of the tool 61 is realized by the driving of the motor. Similarly, a guide rail is further arranged on the second X-axis sliding block, the second Z-axis sliding block is in sliding fit with the guide rail, and possibly, a motor is arranged at one end of the second X-axis sliding block, an output shaft of the motor is connected with a ball screw through a coupling, a nut on the ball screw is fixed on the second Z-axis sliding block, and the vertical reciprocating motion of the cutter 61 is realized through the driving of the motor.

In a preferred embodiment, the pad printing tape 41b includes an elastic substrate layer and a silicone layer disposed on the substrate layer.

In this embodiment, the base material layer may be a woven fabric having elasticity. The silica gel layer can be laid on the base material layer through materials such as adhesive. The silicone layer of the transfer tape 41b is hollowed out corresponding to a portion not to be printed, so as to reduce the area in contact with the product. The part not to be printed is removed, and the part to be printed is left, the shape of which is consistent with the pattern to be printed, and the specific shape is set according to the use requirement, which is not limited herein. Of course, the silicone layer of the pad printing tape 41b may be formed without a void, and the entire silicone layer may be moved on the plate table 20 to absorb ink and perform printing.

In a preferred embodiment, the motion transmission manner between the pad printing belt 41b and the surface of the roller 41a is friction transmission, which can increase the friction between the roller 41a and the pad printing belt 41b to prevent the slip. It is possible that a toothed engaging portion is provided on the surface of the roller shaft 41a, and the inner surface of the pad printing belt 41b engages with the engaging portion.

What just go up be the utility model discloses a part or preferred embodiment, no matter be characters or the drawing can not consequently restrict the utility model discloses the scope of protection, all with the utility model discloses a holistic thought down, utilize the equivalent structure transform that the contents of the description and the drawing do, or direct/indirect application all includes in other relevant technical field the utility model discloses the within range of protection.

Claims

1. The utility model provides a band pulley formula bat printing machine, its characterized in that includes the frame and is located platemaking platform, profile modeling tool, printing mechanism in the frame, wherein:

the profiling jig is used for fixing a workpiece to be printed;

2. The belt wheel pad printer as in claim 1, wherein the first drive assembly comprises:

the first guide rail is arranged on the rack;

the first Z-axis sliding block is connected with the first X-axis sliding block in a sliding mode along the Z-axis direction, the X-axis direction is perpendicular to the Z-axis direction, the roll shafts are rotatably installed on the first Z-axis sliding block, and the motor is fixed on the first Z-axis sliding block.

3. The belt wheel pad printer as in claim 1, further comprising a squeegee mechanism including a second drive assembly and a blade coupled to an output of the second drive assembly, the blade being movable along the ink-receiving surface of the pad bed under the drive of the second drive assembly to flush the ink.

4. The belt wheel pad printer as in claim 3, wherein the second drive assembly comprises:

the second guide rail is arranged on the rack;

5. The belt wheel pad printer of claim 1, wherein the pad printing belt includes an elastic substrate layer and a silicone layer disposed on the substrate layer.

6. The belt wheel pad printer as in claim 1, wherein the motion transmission of the pad belt to the roller surface is a friction transmission.