CN211280177U

CN211280177U - Pad printing equipment

Info

Publication number: CN211280177U
Application number: CN201922181467.1U
Authority: CN
Inventors: 张贤龙
Original assignee: Blty Hunan Technology Co ltd
Current assignee: Blty Hunan Technology Co ltd
Priority date: 2019-12-09
Filing date: 2019-12-09
Publication date: 2020-08-18
Anticipated expiration: 2029-12-09

Abstract

The utility model discloses a pad printing device, which comprises a cabinet body, a preheating device, a pressing reciprocating device and a centering positioning device, wherein the preheating device comprises a rubber head preheating mechanism positioned above a bearing plate and an air flow heating mechanism positioned below the rubber head preheating mechanism; the airflow heating mechanism comprises a first shell, a first filtering module, a heating module and a guide plate, wherein the first filtering module is arranged at the bottom of the first shell, the heating module and the guide plate are both arranged in the first shell, and the heating module is arranged below the guide plate; the rubber head preheating mechanism comprises a preheating cavity, a heat-resistant fan and a second filtering module, the preheating cavity is arranged on the bearing plate, the heat-resistant fan and the second filtering module are both arranged in the preheating cavity, and the heat-resistant fan is arranged at the bottom of the preheating cavity. The utility model provides a pad printing equipment is glued the head to the pad printing and is lastingly stabilized, heat uniformly, lets glue overhead printing ink accelerate to solidify to the certain degree for the deinking is more complete during the printing, the china ink layer thickness is more even, thereby has improved the printing effect of pattern greatly.

Description

Pad printing equipment

Technical Field

The utility model relates to a lithography apparatus technical field especially relates to a bat printing equipment.

Background

The pad printing machine is a kind of printing equipment, and is applicable to plastic cement, toy, glass, metal, ceramic, electronic and IC sealing, etc., and the pad printing technology is one of the main methods for printing and decorating the surface of various objects at present, and has the advantages of simple process, etc. When the pad printing machine works, the oil cup is filled with ink and then pressed on the surface of the pattern steel plate, the pattern to be printed is etched on the pattern steel plate, then the oil cup moves back and forth on the surface of the pattern steel plate to enable the ink to be filled in the etched area of the pattern of the steel plate and scrape off the redundant ink, and then the pad printing pattern ink on the steel plate is printed on a product through the pad printing rubber head in the follow-up operation. In the process, the rubber head needs to be continuously heated to ensure the uniformity of the printing ink, so that the printing patterns on the template can be completely transferred and printed on the object to be printed. The existing preheating device mainly heats the introduced compressed air and blows hot air to the rubber head through an air exhaust. However, the heating and exhausting method has the following problems: hot air is blown to the rubber head through the universal pipe, the direction of air flow is difficult to control, and the blowing direction can swing randomly; meanwhile, the blown hot air has large local wind speed and high and uncontrollable temperature, so that the heating of the rubber head is uneven.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a bat printing equipment aims at solving above-mentioned problem.

In order to achieve the above object, the utility model provides a pad printing device, include:

the cabinet body is provided with a bearing plate in the middle;

the preheating device is connected with the bearing plate and comprises a rubber head preheating mechanism positioned above the bearing plate and an airflow heating mechanism positioned below the bearing plate; the airflow heating mechanism comprises a first shell, a first filtering module, a heating module and a guide plate, wherein the first filtering module is arranged at the bottom of the first shell, the heating module and the guide plate are both arranged in the first shell, and the heating module is arranged below the guide plate; the rubber head preheating mechanism comprises a preheating cavity, a heat-resistant fan and a second filtering module, the preheating cavity is arranged on the bearing plate, the heat-resistant fan and the second filtering module are both arranged in the preheating cavity, the heat-resistant fan is arranged at the bottom of the preheating cavity, and the second filtering module is arranged above the heat-resistant fan;

the pressing reciprocating device is arranged on the bearing plate and is positioned on one side of the preheating device;

and the centering positioning device is arranged on the bearing plate and is relatively positioned on the other side of the preheating device.

Preferably, the pressing reciprocating device comprises a first machine table, a pressing mechanism and a reciprocating mechanism; wherein,

the pressing mechanism comprises a pressing plate, a plurality of pressing connecting plates and at least one pair of driving cylinders, the projection of the driving cylinders on the plane where the first machine table is located on two sides of the first machine table, the driving cylinders are perpendicular to the plane where the first machine table is located, the rod ends of the driving cylinders are connected with the pressing connecting plates, the pressing connecting plates and the pressing plate are located above the first machine table, and the rodless cavities of the driving cylinders are connected with an air pressure digital display meter;

the reciprocating mechanism is arranged in the first machine table and comprises a servo driving motor and a transmission module, and the servo driving motor is connected with the driving cylinder through the transmission module.

Preferably, the pressing mechanism comprises a cylinder mounting plate, and the cylinder mounting plate is connected with the driving cylinder; the transmission module comprises a screw rod, and the servo driving motor is connected with the air cylinder mounting plate through the screw rod.

Preferably, the centering device comprises: the device comprises a second shell, a profiling positioning jig, a lifting carrying platform, an X-axis positioning adjusting module, a Y-axis positioning adjusting module and a lifting cylinder; the profiling positioning jig is arranged on the second shell, the profiling positioning jig, the lifting platform deck, the X-axis positioning adjusting module, the Y-axis positioning adjusting module and the lifting cylinder are all arranged in the second shell, two ends of the lifting cylinder are respectively connected with the inner wall of the second shell and the lifting platform deck, and the X-axis positioning adjusting module and the Y-axis positioning adjusting module are all arranged on the lifting platform deck.

Preferably, the X-axis positioning adjustment module comprises a plurality of pairs of positioning rods, an X-axis cylinder and a transmission unit, the X-axis cylinder is connected with the positioning rods through the transmission unit, and the positioning rods are perpendicular to the lifting carrying platform; the Y-axis positioning and adjusting module comprises a plurality of pairs of positioning rods, a Y-axis cylinder and a transmission unit, the Y-axis cylinder is connected with the positioning rods through the transmission unit, and the positioning rods are perpendicular to the lifting carrying platform.

Preferably, the side of profile modeling positioning jig be provided with the multichannel with the spout of locating lever adaptation.

Preferably, the heating module comprises a plurality of heating pipes which are arranged in parallel, and the heating pipes are inserted and fixed on one side of the first shell.

Preferably, the airflow heating mechanism further comprises a plurality of air guide pipes, the air guide pipes are fixedly inserted into one side of the first shell, the inlet ends of the air guide pipes are externally connected with a compressed air source, and the outlet ends of the air guide pipes face the pad printing rubber head.

Preferably, the guide plate is of a U-shaped structure which is sunken towards the heating module, and air guide openings are formed in plate bodies on two sides of the guide plate.

Preferably, an air filtering device is arranged at the top of the cabinet body.

In the technical scheme of the utility model, the pad printing equipment comprises a cabinet body, a preheating device, a pressing reciprocating device and a centering positioning device, wherein the preheating device comprises a rubber head preheating mechanism positioned above a bearing plate and an airflow heating mechanism positioned below the bearing plate; the airflow heating mechanism comprises a first shell, a first filtering module, a heating module and a guide plate, wherein the first filtering module is arranged at the bottom of the first shell, the heating module and the guide plate are both arranged in the first shell, and the heating module is arranged below the guide plate; the rubber head preheating mechanism comprises a preheating cavity, a heat-resistant fan and a second filtering module, the preheating cavity is arranged on the bearing plate, the heat-resistant fan and the second filtering module are both arranged in the preheating cavity, the heat-resistant fan is arranged at the bottom of the preheating cavity, and the second filtering module is arranged above the heat-resistant fan. When the pad printing machine works, the heat-resistant fan in the preheating device operates to enable the airflow to generate centrifugal force, external cold air enters the first shell after being filtered for the first time from the bottom of the cabinet body through the first filtering module of the airflow heating mechanism, the cold airflow is heated by the heating module and then enters the rubber head preheating mechanism through the guide plate, hot airflow is discharged from the upper part of the preheating cavity to heat the rubber head after being filtered for the second time through the heat-resistant fan and the second filtering module, the hot airflow is stable in wind direction and flow speed, the rubber head can be uniformly heated, ink on the rubber head is accelerated to solidify to a certain degree, deinking is more complete during printing, the thickness of an ink layer is more uniform, and the printing effect of patterns is greatly improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural view of a pad printing apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 from another perspective;

fig. 3 is a schematic structural view of a preheating device according to an embodiment of the present invention;

FIG. 4 is a schematic view of the internal structure of FIG. 3;

fig. 5 is an exploded view of a press shuttle according to an embodiment of the present invention;

FIG. 6 is a schematic view of the internal structure of FIG. 5;

fig. 7 is an exploded view of the centering device according to an embodiment of the present invention;

fig. 8 is an internal structural view of fig. 7.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Cabinet body	320	Pressing mechanism
110	Bearing plate	321	Pressing plate
				120	Rubber head	322	Press connecting plate
130	Air filter	323	Driving cylinder
				200	Preheating device	324	Cylinder mounting plate
210	Glue head and preheat mechanism	330	Reciprocating mechanism
				211	Preheating cavity	400	Centering positioning device
212	Heat-resisting fan	410	Second shell
				213	Second filter module	420	Profiling positioning jig
220	Airflow heating mechanism	421	Sliding chute
				221	First shell	430	Lifting carrying platform
222	First filter module	440	X-axis positioning adjustment module
				223	Heating tube	450	Y-axis positioning and adjusting module
224	Flow guide plate	460	Lifting cylinder
				225	Air guide pipe	470	Positioning rod
300	Press reciprocating device	500	Oil cup
				310	First machine	600	Pattern steel plate

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.

Referring to fig. 1 to 8, in an embodiment of the present invention, the pad printing apparatus includes: the cabinet 100, the preheating device 200, the press reciprocating device 300 and the centering device 400. The middle part of the cabinet 100 is provided with a bearing plate 110, and the pressing reciprocating device 300 and the centering device 400 are both arranged on the bearing plate 110 and respectively located at two sides of the preheating device 200. The pressing reciprocating device 300 is mainly used for controlling the pressing and reciprocating actions of the oil cup 500 on the pattern steel plate 600, so that the ink can be uniformly filled in the etching area of the pattern steel plate 600; the preheating device 200 is mainly used for stably and uniformly blowing heated air flow onto the pad printing rubber head 120, so that the ink on the rubber head 120 is accelerated to solidify to a certain degree, deinking is more complete during printing, and the thickness of an ink layer is more uniform; the centering device 400 is mainly used for precisely positioning the product to be printed, so as to ensure that the printed pattern is not deflected or shifted.

Specifically, as shown in fig. 3 and 4, the preheating device 200 includes a rubber head preheating mechanism 210 located above the carrying plate 110 and an air flow heating mechanism 220 located below the carrying plate 110, and an air flow hole (not shown) is formed in the carrying plate 110 between the rubber head preheating mechanism 210 and the air flow heating mechanism 220 for hot air to pass through; the airflow heating mechanism 220 includes a first casing 221, a first filtering module 222, a heating module and a guide plate 224, the first filtering module 222 is disposed at the bottom of the first casing 221, the heating module and the guide plate 224 are both disposed in the first casing 221, and the heating module is disposed below the guide plate 224; the glue head preheating mechanism 210 comprises a preheating cavity 211, a heat-resisting fan 212 and a second filtering module 213, the preheating cavity 211 is arranged on the bearing plate, the heat-resisting fan 212 and the second filtering module 213 are both arranged in the preheating cavity 211, the heat-resisting fan 212 is arranged at the bottom of the preheating cavity 211, and the second filtering module 213 is arranged above the heat-resisting fan 212. When the pad printing machine works, the heat-resistant fan 212 in the preheating device 200 operates to enable the airflow to generate centrifugal force, external cold air enters the first shell 221 after being subjected to primary filtration from the bottom of the cabinet 100 through the first filtering module 222 of the airflow heating mechanism 220, the cold airflow is heated by the heating module and then enters the rubber head preheating mechanism 210 through the guide plate 224, hot airflow is discharged from the upper part of the preheating cavity 211 to heat the rubber head 120 after being subjected to secondary filtration sequentially through the heat-resistant fan 212 and the second filtering module 213, the wind direction and the flow rate of the hot airflow are stable, the rubber head 120 can be uniformly heated, and the printing effect of patterns is greatly improved.

In the pad printing device provided by the embodiment, after being started, the ink cup 500 is pressed on the surface of the pattern steel plate 600 to move back and forth under the action of the pressing and reciprocating device 300, so that ink filling of an etched area of the pattern steel plate 600 is completed, and redundant ink on the steel plate is scraped; and then the rubber head 120 moves above the pattern steel plate 600, is reset after being pressed downwards to take ink, then moves above the preheating cavity 211 of the preheating device 200, is pressed downwards to preheat the rubber head 120, is reset after being preheated for a certain time and reaches the centering positioning device 400 to be pressed upwards and downwards, and is reset after the transfer printing of the product to be printed is carried out, so that the transfer printing operation is completed.

Specifically, as shown in fig. 5 and 6, the pressing reciprocating device 300 includes a first machine 310, a pressing mechanism 320, and a reciprocating mechanism 330; the pressing mechanism 320 comprises a pressing plate 321, a plurality of pressing connecting plates 322 and at least one pair of driving cylinders 323, the projection of the driving cylinders 323 on the plane of the first machine table 310 is positioned at two sides of the first machine table 310, the driving cylinders 323 are perpendicular to the plane of the first machine table 310, the rod ends of the driving cylinders 323 are connected with the pressing connecting plates 322, and the pressing connecting plates 322 and the pressing plates 321 are both positioned above the first machine table 310; the reciprocating mechanism 330 is disposed in the first machine 310, the reciprocating mechanism 330 includes a servo driving motor (not shown) and a transmission module (not shown), both of which are mounted in the first machine 310, and the servo driving motor is connected to the driving cylinder 323 through the transmission module; the oil cup 500 is connected with the bottom side of the pressing plate 321; wherein, the rodless cavity of the driving cylinder 323 is connected with a gas pressure digital display meter (not shown in the figure).

The pressing reciprocating device 300 provided by the embodiment mainly realizes the pressing contact between the oil cup 500 and the pattern steel plate 600 through the pressing mechanism 320, and realizes the relative reciprocating movement between the oil cup 500 and the pattern steel plate 600 through the reciprocating mechanism 330. Specifically, the pressing mechanism 320 includes a pressing plate 321, a pressing connecting plate 322 and driving cylinders 323, the rod ends of the driving cylinders 323 at the two sides are respectively connected with the corresponding pressing connecting plate 322, and the pressing connecting plates 322 at the two sides are connected with the pressing plate 321 in the middle, where the pressing plate 321 is mainly used for mounting and fixing the oil cup 500.

It should be noted that the driving cylinder 323 in this embodiment is disposed perpendicular to the first machine table 310, and the projection of the driving cylinder 323 on the plane of the first machine table 310 is located on two sides of the first machine table 310, that is, the driving cylinder 323 may be installed on two sides of the first machine table 310 as shown in fig. 5 of this embodiment; or above the first machine table 310, and the projection of the driving cylinder 323 on the plane of the first machine table 310 is also located at two sides of the first machine table 310, at this time, the driving cylinder 323 can be fixed on the internal structure of the cabinet 100 of the pad printing machine.

In addition, a gas pressure digital display meter is connected and arranged in a rodless cavity of the driving cylinder 323, so that a gas pressure value in the cylinder can be accurately acquired, the real-time contact pressure between the oil cup 500 and the pattern steel plate 600 is obtained, and the adjustment is facilitated according to the situation. For example, the oil cup 500 can appear wearing and tearing in service, and then the clearance between oil cup 500 and the pattern steel sheet 600 can increase, and the contact pressure value between the two can reduce, just can follow the change of pressure value in the atmospheric pressure digital display table this moment, and the basic degree of change reduces the clearance of oil cup 500 and pattern steel sheet 600, perhaps changes oil cup 500. Furthermore, the air pressure digital display meter can be connected with the PLC, when the pressure value is reduced to a preset value, the PLC sends out an alarm to inform maintenance personnel to adjust or directly replace the oil cup 500.

As shown in fig. 6, the reciprocating mechanism 330 in this embodiment is driven by the servo driving motor to drive the driving cylinder 323 to reciprocate through the transmission module. The servo driving motor is simple and convenient to control, stable in action operation and high in stroke precision, and under the driving of the servo driving motor, the oil cup 500 connected with the driving cylinder 323 can accurately and smoothly complete ink coating and ink scraping work, so that the transfer printing effect is guaranteed.

The driving cylinder 323 in the pressing reciprocating device 300 is combined with the air pressure digital display meter to enable the oil cup 500 to be accurately and adjustably pressed on the surface of the steel plate, and then the oil cup 500 is controlled by the servo driving motor to reciprocate along the surface of the steel plate, so that the whole reciprocating process of the oil cup 500 is smooth, accurate and controllable, the coating uniformity of ink on the steel plate pattern is greatly improved, and the transfer printing quality of a product is obviously improved; meanwhile, the phenomenon that the magnetic attraction force generated by the magnetic block in the existing device adsorbs metal particles in the printing ink can be avoided, so that the printing effect of the printing ink after transfer printing and baking is influenced.

Specifically, the transmission module includes a screw rod, for example, the pressing mechanism 320 includes a cylinder mounting plate 324, the cylinder mounting plate 324 is connected to the driving cylinder 323, and the servo driving motor is connected to the cylinder mounting plate 324 through the screw rod.

Preferably, a buffer block is disposed between the pressing plate 321 and the pressing connecting plate 322, and when the pressing plate 321 is driven to descend by the driving cylinder 323 connected to the pressing connecting plate 322, the oil cup 500 is driven to press on the pattern steel plate 600. The buffer block is arranged between the pressing plate 321 and the pressing connecting plate 322, so that the vibration can be reduced, and the service life of the mechanism can be prolonged.

Specifically, as shown in fig. 7 and 8, the centering device 400 provided in the present embodiment includes: the second shell 410, the profiling positioning jig 420, the lifting carrying platform 430, the X-axis positioning adjusting module 440, the Y-axis positioning adjusting module 450 and the lifting cylinder 460; the profiling positioning jig 420 is arranged on the second housing 410, the profiling positioning jig 420, the lifting carrying platform 430, the X-axis positioning adjustment module 440, the Y-axis positioning adjustment module 450 and the lifting cylinder 460 are all arranged in the second housing 410, two ends of the lifting cylinder 460 are respectively connected with the inner wall of the second housing 410 and the lifting carrying platform 430, and the X-axis positioning adjustment module 440 and the Y-axis positioning adjustment module 450 are all arranged on the lifting carrying platform 430; the X-axis positioning adjustment module 440 includes a plurality of pairs of positioning rods 470, an X-axis cylinder (not shown) and a transmission unit (not shown), the X-axis cylinder is connected to the positioning rods 470 through the transmission unit, and the positioning rods 470 are perpendicular to the lifting platform 430; the Y-axis positioning adjustment module 450 includes a plurality of pairs of positioning rods 470, Y-axis cylinders (not shown) and transmission units (not shown), the Y-axis cylinders are connected to the positioning rods 470 through the transmission units, and the positioning rods 470 are perpendicular to the lifting platform 430; the side of the profiling positioning fixture 420 is provided with a plurality of sliding grooves 421 adapted to the positioning rods 470.

In the present embodiment, the profiling positioning fixture 420 in the centering device 400 is mainly used for carrying workpieces with similar shapes and primarily limiting the workpieces to be printed. The second housing 410 has a substantially square box shape, the copying positioning jig 420 is fixed to the top of the second housing 410 by bolts, and other components are accommodated in the second housing 410. The positioning of the workpiece to be printed is accomplished by the X-axis positioning adjustment module 440 and the Y-axis positioning adjustment module 450. Specifically, the positioning of the workpiece is accomplished by clamping and securing a plurality of pairs of positioning rods 470, such as: the horizontal direction in fig. 1 is the X-axis direction, and the vertical direction is the Y-axis direction, wherein the X-axis positioning adjustment module 440 has a pair of positioning rods 470 for clamping and positioning two ends (shorter two sides) of the workpiece, and the Y-axis positioning adjustment module 450 has two pairs of positioning rods 470 for clamping and positioning two sides (longer two sides) of the workpiece, although the number of the positioning rods 470 in the X/Y-axis direction may be set according to practical situations, and is not limited herein. In addition, the X axis direction and the Y axis direction in the present embodiment are only for description, and are not specific limitations on the direction and position thereof.

The operation of the centering device 400 provided in this embodiment is substantially as follows:

1. a loading stage: a workpiece to be pad-printed is firstly placed into a cavity of the profiling positioning jig 420 through a manual or automatic manipulator, the lifting cylinder 460 supports the lifting carrier 430 to a predetermined height, and the X-axis positioning adjustment module 440 and the Y-axis positioning adjustment module 450 which are arranged on the lifting carrier 430 also rise to the predetermined height, so that the positioning rod 470 of the X/Y-axis positioning adjustment module also extends out of the chute 421 of the profiling positioning jig 420 to rise to a position to be positioned;

2. and a positioning adjusting stage: the Y-axis cylinder works, the transmission unit drives four positioning rods 470 (such as two pairs of vertical positioning rods 470 in fig. 1) to clamp two sides of the workpiece to be pad-printed, and the X-axis cylinder also drives two positioning rods 470 (such as a pair of transverse positioning rods 470 in fig. 1) to clamp two ends of the workpiece to be pad-printed through the transmission unit, so that centering positioning adjustment is realized, and positioning can be completed by one operation or multiple operations according to actual conditions;

3. an unloading stage: after the adjusting and positioning step is completed, the X-axis cylinder and the Y-axis cylinder respectively contract to the initial positions, then the lifting cylinder 460 descends, the lifting carrying platform 430, the X-axis positioning adjusting module 440 and the Y-axis positioning adjusting module 450 integrally descend, and the workpiece to be pad-printed starts to be printed.

In addition, as shown in fig. 4, the heating module of the preheating device 200 further includes a plurality of heating pipes 223 arranged in parallel, and the heating pipes 223 are inserted and fixed to one side of the first shell 221. The heating pipe 223 in this embodiment is preferably an electric heating pipe, and the heating manner includes, but is not limited to, resistance wires, far infrared rays, and the like. As a preferable mode, the airflow heating mechanism 220 further includes a plurality of air guiding pipes 225, the air guiding pipes 225 are inserted and fixed on one side of the first casing 221, an inlet end of the air guiding pipe 225 is externally connected with a compressed air source, and an outlet end of the air guiding pipe 225 faces the pad printing head 120. Here, a second air heating method is provided, in which a compressed air source (not shown) is externally connected to the air duct 225 to heat the cold compressed air flowing in the duct by the heating pipe 223, and then the hot air is directly blown to the pad printing head 120 from the outlet end to continuously heat the head 120.

Preferably, as shown in fig. 1, an FFU air filtering device 130 is disposed at the top of the cabinet 100 to filter the cold air outside the cabinet 100 and deliver the filtered air to the electric control assembly area and the pad printing operation area. The cold air passing through the electric control assembly area is used for cooling the electric control assembly which generates heat, and then the air is exhausted out of the equipment through the exhaust fan at the bottom of the cabinet body 100. Meanwhile, cold air reaches the working area (including the preheating device 200, the centering device 400 and the like) through the pad printing operation area to cool the temperature of the working area, and then the air is conveyed into the bottom box of the cabinet body 100 below the bearing plate 110 through the exhaust fan and finally exhausted by the exhaust fan at the bottom of the cabinet body 100. Therefore, the cleanliness of the pad printing execution device can be ensured, and the temperature of the pad printing working area is kept in the optimal range of 18-23 ℃.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims

1. A pad printing apparatus, comprising:

the cabinet body is provided with a bearing plate in the middle;

2. The pad printing apparatus of claim 1, wherein the press shuttle includes a first table, a press mechanism, and a shuttle mechanism; wherein,

3. The pad printing apparatus of claim 2, wherein the press mechanism includes a cylinder mounting plate coupled to the drive cylinder; the transmission module comprises a screw rod, and the servo driving motor is connected with the air cylinder mounting plate through the screw rod.

4. The pad printing apparatus of claim 1, wherein the centering device comprises: the device comprises a second shell, a profiling positioning jig, a lifting carrying platform, an X-axis positioning adjusting module, a Y-axis positioning adjusting module and a lifting cylinder; the profiling positioning jig is arranged on the second shell, the profiling positioning jig, the lifting platform deck, the X-axis positioning adjusting module, the Y-axis positioning adjusting module and the lifting cylinder are all arranged in the second shell, two ends of the lifting cylinder are respectively connected with the inner wall of the second shell and the lifting platform deck, and the X-axis positioning adjusting module and the Y-axis positioning adjusting module are all arranged on the lifting platform deck.

5. The pad printing apparatus according to claim 4, wherein the X-axis positioning adjustment module comprises a plurality of pairs of positioning rods, an X-axis cylinder and a transmission unit, the X-axis cylinder is connected to the positioning rods through the transmission unit, and the positioning rods are perpendicular to the lifting carrier; the Y-axis positioning and adjusting module comprises a plurality of pairs of positioning rods, a Y-axis cylinder and a transmission unit, the Y-axis cylinder is connected with the positioning rods through the transmission unit, and the positioning rods are perpendicular to the lifting carrying platform.

6. The pad printing device according to claim 5, wherein a plurality of sliding grooves matched with the positioning rods are formed in the side edges of the profiling positioning jig.

7. The pad printing apparatus of claim 1, wherein the heating module comprises a plurality of parallel heating tubes, and the heating tubes are inserted and fixed to one side of the first housing.

8. The pad printing device according to claim 4, wherein the airflow heating mechanism further comprises a plurality of air guide pipes, the air guide pipes are inserted and fixed on one side of the first shell, an inlet end of each air guide pipe is externally connected with a compressed air source, and an outlet end of each air guide pipe faces the pad printing rubber head.

9. The pad printing apparatus according to any one of claims 1 to 8, wherein the deflector has a U-shaped structure recessed toward the heating module, and air guide openings are formed in both side plates of the deflector.

10. Pad printing device according to any one of claims 1 to 8, wherein the top of the cabinet is provided with an air filtering means.