CN214239983U

CN214239983U - Pad printing machine

Info

Publication number: CN214239983U
Application number: CN202022602555.7U
Authority: CN
Inventors: 龙兵
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-10
Filing date: 2020-11-10
Publication date: 2021-09-21
Anticipated expiration: 2030-11-10

Abstract

The application provides a pad printing machine. The pad printing machine comprises a machine body, a positioning mechanism, a rotary driving mechanism, a pad printing device and a blanking mechanism; the positioning mechanism comprises a turntable and a plurality of positioning assemblies, the turntable is rotationally connected to the machine body, and each positioning assembly is used for positioning a workpiece; the rotary driving mechanism is arranged on the machine body, and the power output end of the rotary driving mechanism is connected with the rotary disc; the pad printing device comprises a base, an oil pan mechanism, a sliding seat, a first driving assembly, a second driving assembly, a scraper mechanism and a printing head mechanism; the base is arranged adjacent to the machine body; the sliding seat is connected with the base in a sliding manner; the first driving assembly is arranged on the base, and the power output end of the first driving assembly is connected with the sliding seat; the second driving assembly is arranged on the sliding seat, and the power output end of the second driving assembly is connected with the printing head mechanism. Therefore, the process that the pad printing machine continuously performs pad printing on the printed object is realized, and the pad printing efficiency of the pad printing machine on a single printed object is greatly improved.

Description

Pad printing machine

Technical Field

The utility model relates to a lithography apparatus's technical field especially relates to a bat printing machine.

Background

Pad printing belongs to one of special printing modes and can print characters, graphics and images on the surface of an irregular object. The principle of pad printing machine is that the pattern to be printed is made into intaglio by means of film plate-making process, then the intaglio is transferred on the printed matter by means of special silica gel printing head, and according to the material quality of product the special-purpose printing ink can be prepared so as to ensure the quality of the printed matter. The pad printing machine is applicable to industries: the plastic industry, the toy industry, the glass industry, the metal industry, the electronic industry, the sports goods, the stationery industry, the optical industry and the like.

The traditional pad printing machine can only pad print a certain number of printed objects at one time to obtain a batch of pad printed products. And when the pad printing of the printed object on the clamping positioning seat is finished, the machine needs to be stopped. Namely, the product after pad printing is manually unloaded from the clamping positioning seat, then the machine is stopped, and a new printed object is manually clamped, so that the pad printing machine performs the intermittent pad printing process on the printed object, and the pad printing efficiency of the pad printing machine on the single printed object is lower.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the weak point among the prior art, provide a bat printing machine to the higher bat printing efficiency of single quilt seal thing.

The purpose of the utility model is realized through the following technical scheme:

a pad printer comprising:

a body;

the positioning mechanism comprises a turntable and a plurality of positioning assemblies, the turntable is rotationally connected to the machine body, the plurality of positioning assemblies are distributed at intervals along the circumferential direction of the turntable, and each positioning assembly is used for positioning a workpiece;

the rotary driving mechanism is arranged on the machine body, and a power output end of the rotary driving mechanism is connected with the rotary disc;

the pad printing device comprises a base, an oil pan mechanism, a sliding seat, a first driving assembly, a second driving assembly, a scraper mechanism and a printing head mechanism; the base is arranged adjacent to the machine body; the oil pan mechanism is arranged on the base and is provided with ink grooves for respectively containing ink and a steel plate; the sliding seat is connected to the base in a sliding manner; the first driving assembly is arranged on the base, and the power output end of the first driving assembly is connected with the sliding seat; the second driving assembly is arranged on the sliding seat, the power output end of the second driving assembly is connected with the printing head mechanism, and an included angle is formed between the power output direction of the second driving assembly and the power output direction of the first driving assembly; the scraper mechanism is arranged on the sliding seat, and part of the scraper mechanism is positioned in the ink groove and used for scraping ink on the surface of the steel plate; the printing head mechanism is used for stamping the pattern of the steel plate on the workpiece;

the blanking mechanism is arranged on the machine body and is close to the rotary table, and the blanking mechanism is used for taking out the workpiece on the positioning assembly when the positioning assembly rotates to a position corresponding to the blanking mechanism along with the rotary table.

In one embodiment, the power output direction of the second drive assembly is perpendicular to the power output direction of the first drive assembly.

In one embodiment, each positioning assembly comprises a sliding base, a sliding base body and a clamp, the sliding base is arranged on the rotary table, the sliding base body is connected to one surface of the sliding base, which is far away from the rotary table, in a sliding mode, the clamp is connected to the sliding base body, and the clamp is used for positioning the workpiece.

In one embodiment, the sliding seat main body comprises a first sliding seat and a second sliding seat, the first sliding seat is connected with the second sliding seat in a sliding manner, the first sliding seat is connected with the sliding base in a sliding manner, and the clamp is connected to one side of the second sliding seat, which is far away from the first sliding seat.

In one embodiment, the blanking mechanism comprises a fixed seat, a sliding seat, a third driving assembly, a mounting seat, a fourth driving assembly and a taking and placing assembly; the fixed seat is connected with the machine body; the sliding seat is connected with the fixed seat in a sliding manner, the third driving assembly is arranged on the sliding seat, and the power output end of the third driving assembly is connected with the fixed seat; the mounting seat is connected to the sliding seat; the fourth driving assembly is connected to the mounting seat; the taking and placing assembly is arranged at the power output end of the fourth driving assembly and used for taking out the workpiece on the positioning assembly when the positioning assembly rotates to the position corresponding to the blanking mechanism along with the turntable.

In one embodiment, the mounting seat is movably connected to the sliding seat.

In one embodiment, the mounting seat is rotatably connected to the sliding seat; the blanking mechanism further comprises a locking piece, an arc-shaped groove is formed in the mounting seat, a connecting hole is formed in the sliding seat, and the locking piece is arranged in the arc-shaped groove and the connecting hole in a penetrating mode respectively.

In one embodiment, the scraper mechanism comprises a driving source, a fixing frame and a scraper component, wherein the driving source is arranged on the sliding seat, the power output end of the driving source is connected with the fixing frame, the scraper component is arranged on the fixing frame, and the scraper component is partially positioned in the ink groove and used for scraping off ink on the surface of the steel plate.

In one embodiment, the fixing frame comprises a fixing main frame and a first guide rod which are connected, the sliding seat is provided with a first sliding groove, the first guide rod is located in the first sliding groove and is in sliding connection with the sliding seat, a power output shaft of the driving source is connected with the fixing main frame, and the scraper assembly is connected with the fixing main frame.

In one embodiment, the print head mechanism includes a connecting slide seat, a print head body and a rubber head, the connecting slide seat is connected with the power shaft of the second driving assembly, the print head seat is connected with the connecting slide seat, the print head body is connected with the print head seat, the rubber head is connected with the print head body, and the rubber head is used for imprinting the pattern of the steel plate on the workpiece.

Compared with the prior art, the utility model discloses at least, following advantage has:

1. the rotary table is rotationally connected to the base body, the at least two positioning assemblies are arranged on the rotary table, each positioning assembly positions a workpiece, namely a printed object, when the rotary driving mechanism drives the rotary table to rotate relative to the machine body so that one positioning assembly corresponds to the pad printing device, the first driving assembly drives the sliding seat to slide relative to the base, the sliding seat drives the scraper mechanism to scrape ink on the surface of a steel plate in the ink tank, and the print head mechanism moves to any position in a vertical space due to an included angle formed between the power output direction of the second driving assembly and the power output direction of the first driving assembly so that the print head mechanism can imprint patterns of the steel plate on the workpiece, and the pad printing machine can pad the workpiece;

2. when one of the positioning assemblies is in a position corresponding to the pad printing device, the printing head mechanism can be used for impressing the pattern of the steel plate on the workpiece, and simultaneously clamping the workpieces of other positioning assemblies; after the workpiece on the current positioning assembly is imprinted, the rotary driving mechanism drives the rotary table to continuously rotate relative to the machine body, so that the next positioning assembly on the rotary table corresponds to the pad printing device, and the imprinted workpiece can be taken out of the positioning assembly through the blanking mechanism and clamped again.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic view of a pad printing machine according to an embodiment;

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

FIG. 3 is a cross-sectional view taken along line A-A of the pad printer of FIG. 2;

FIG. 4 is a partial schematic view of the pad printer of FIG. 1 from yet another perspective;

FIG. 5 is a schematic view of a positioning assembly of the positioning mechanism of the pad printer shown in FIG. 4;

FIG. 6 is a partial schematic view of the pad printer of FIG. 4;

FIG. 7 is a partial schematic view of the pad printer of FIG. 1 from yet another perspective;

FIG. 8 is a partial schematic view of the pad printer of FIG. 7;

FIG. 9 is a partial schematic view of a further perspective of the pad printer of FIG. 1;

FIG. 10 is a partial schematic view of the pad printer of FIG. 9;

FIG. 11 is a partial schematic view of a further perspective of the pad printer of FIG. 1;

FIG. 12 is a partial schematic view of the pad printer of FIG. 1.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 3, a pad printing machine 10 according to an embodiment includes a machine body 100, a positioning mechanism 200, a rotation driving mechanism 300, and a pad printing device 400. The positioning mechanism 200 includes a turntable 210 and at least two positioning assemblies 220, the turntable 210 is rotatably connected to the machine body 100, and the at least two positioning assemblies 220 are disposed on the turntable 210. The rotation driving mechanism 300 is disposed on the machine body 100, and a power output end of the rotation driving mechanism 300 is connected to the turntable 210, so that the rotation driving mechanism 300 drives the turntable 210 to rotate relative to the machine body 100. As shown in fig. 4 and 5, each positioning assembly 220 is used to position the workpiece 20. In the present embodiment, all the positioning assemblies 220 are disposed on the turntable 210 and distributed along the circumferential direction of the turntable 210. The pad printing device 400 is disposed adjacent to the turntable 210, such that any one of the positioning assemblies 220 can rotate with the turntable 210 relative to the machine body 100 to a position corresponding to the pad printing device 400.

As shown in fig. 4 and 6, in one embodiment, the pad printing apparatus 400 includes a base 410, a shoe 420, an oil pan mechanism 430, a first drive assembly 440, a second drive assembly 450, a squeegee mechanism 460, and a print head mechanism 470. The base 410 is disposed adjacent to the body 100, and the sliding seat 420 is slidably connected to the base 410. The oil pan mechanism 430 is provided on the base 410, and the oil pan mechanism 430 is opened with ink tanks 432 for containing ink and a steel plate, respectively. In this embodiment, ink and a steel plate are contained in the ink tank 432, and the steel plate is soaked in the ink. The first driving assembly 440 is disposed on the base 410, and a power output end of the first driving assembly 440 is connected to the sliding seat 420, so that the sliding seat 420 is driven by the first driving assembly 440 to slide relative to the base 410. The second driving assembly 450 is disposed on the sliding seat 420, and a power output end of the second driving assembly 450 is connected to the print head mechanism 470, such that the second driving assembly 450 drives the print head mechanism 470 to move relative to the sliding seat 420.

As shown in fig. 6, the power output direction of the second driving assembly 450 is angled with respect to the power output direction of the first driving assembly 440, such that the print head mechanism 470 moves in the plane of the power output direction of the first driving assembly 440 and the power output direction of the second driving assembly 450. The scraper mechanism 460 is disposed on the sliding seat 420, and the scraper mechanism 460 is partially disposed in the ink tank 432 for scraping the ink on the surface of the steel plate, so that the pattern on the surface of the steel plate is exposed within a predetermined time. The print head mechanism 470 is used to imprint a pattern of the steel plate on the workpiece 20. When the scraper mechanism 460 scrapes off ink on the surface of the steel plate, the pattern on the surface of the steel plate is exposed within a predetermined time, and the first driving assembly 440 and the second driving assembly 450 cooperate to move the printing head mechanism 470 between the steel plate and the workpiece 20, so as to print the pattern on the workpiece 20.

In the pad printing machine 10, because the turntable 210 is rotationally connected to the base, and the at least two positioning assemblies 220 are disposed on the turntable 210, each positioning assembly 220 positions the workpiece 20, that is, the object to be printed, when the rotary driving mechanism 300 drives the turntable 210 to rotate relative to the machine body 100, so that one of the positioning assemblies 220 corresponds to the pad printing device 400, the first driving assembly 440 drives the sliding seat 420 to slide relative to the base 410, so that the sliding seat 420 drives the scraper mechanism 460 to scrape off the ink on the surface of the steel plate in the ink tank 432, and because an included angle exists between the power output direction of the second driving assembly 450 and the power output direction of the first driving assembly 440, the printing head mechanism 470 moves to any position in a vertical space, so that the printing head 470 can imprint the pattern of the steel plate on the workpiece 20, thereby enabling the pad printing machine 10 to perform pad printing on the workpiece 20; when one of the positioning assemblies 220 corresponds to the pad printing device 400, the print head mechanism 470 can print the pattern of the steel plate on the workpiece 20, and can clamp the workpieces 20 of the other positioning assemblies 220; after the workpiece 20 on the current positioning assembly 220 is imprinted, the rotary driving mechanism 300 drives the rotary disc 210 to rotate continuously relative to the machine body 100, so that the next positioning assembly 220 on the rotary disc 210 corresponds to the pad printing device 400, and the imprinted workpiece 20 can be taken out of the positioning assembly 220 to clamp a new workpiece 20 again, thereby realizing the process of continuously pad printing the object to be printed by the pad printing machine 10, and greatly improving the pad printing efficiency of the pad printing machine 10 on a single object to be printed. In this embodiment, the rotation driving mechanism 300 is a rotation telescopic cylinder 532, and in other embodiments, the rotation driving mechanism 300 may also be a rotation motor or other power source.

As shown in fig. 6, in one embodiment, the power output direction of the second driving assembly 450 is perpendicular to the power output direction of the first driving assembly 440, so that the printing head mechanism 470 moves in a vertical direction with respect to the machine body 100, and the scraper mechanism 460 moves in a vertical direction with respect to the oil pan mechanism 430, so that the scraper mechanism 460 can better scrape ink on the surface of the steel plate in the ink tank 432 of the oil pan mechanism 430, and the printing head mechanism 470 can better pad the workpiece 20.

As shown in fig. 1, in one embodiment, the number of the positioning assemblies 220 is multiple, and the multiple positioning assemblies 220 are distributed at intervals along the circumferential direction of the turntable 210, so that the positioning mechanism 200 can clamp at least multiple workpieces 20, and the pad printing efficiency of the pad printing machine 10 is improved. In addition, since the plurality of positioning assemblies 220 are spaced apart along the circumferential direction of the turntable 210, the process of rotating the turntable 210 relative to the machine body 100 is more stable. In the present embodiment, the number of the positioning assemblies 220 is eight, and the eight positioning assemblies 220 are spaced apart along the circumferential direction of the turntable 210.

As shown in fig. 5, in one embodiment, each positioning assembly 220 includes a sliding base 222, a sliding base body 224 and a clamp 226, the sliding base 222 is disposed on the turntable 210, and the sliding base body 224 is slidably connected to a surface of the sliding base 222 facing away from the turntable 210, so that the relative position between the sliding base body 224 and the sliding base body 222 is adjustable. A clamp 226 is attached to the slide block body 224, the clamp 226 being used to position the workpiece 20. The position of the clamp 226 relative to the turntable 210 is adjustable due to the adjustable relative position between the slide mount body 224 and the slide mount base 222.

Furthermore, each positioning assembly 220 further includes a locking member (not shown), the sliding base 222 is provided with a first mounting hole 223, the turntable 210 is provided with a second mounting hole (not shown), and the locking member respectively penetrates through the first mounting hole 223 and the second mounting hole, so that the sliding base 222 is fixedly connected to the turntable 210. It is understood that in other embodiments, the sliding base 222 of each positioning assembly 220 is not limited to being fixed on the turntable 210 by a locking member, and the sliding base 222 of each positioning assembly 220 can be welded or glued to the turntable 210.

As shown in fig. 5, the sliding seat main body 224 further includes a first sliding seat 224a and a second sliding seat 224b, the first sliding seat 224a is slidably connected to the sliding seat 222, so that the sliding seat main body 224 is slidably connected to the sliding seat 222. The clamp 226 is connected to a side of the second slider 224b facing away from the first slider 224a, such that the clamp 226 is connected to the slider body 224. In the embodiment, an included angle exists between the sliding direction of the first slider 224a relative to the second slider 224b and the sliding direction of the first slider 224a relative to the sliding base 222, so that the flexibility of the sliding adjustment of the clamp 226 relative to the sliding base 222 through the slider main body 224 is higher, the flexibility of the position adjustment of the clamp 226 relative to the turntable 210 is higher, and the convenience in use of the pad printing machine 10 is improved. Specifically, the direction in which the first carriage 224a slides with respect to the second carriage 224b and the direction in which the first carriage 224a slides with respect to the carriage base 222 are perpendicular to each other. Further, the sliding base 222 is provided with a first guide slot 222a, the first sliding seat 224a is convexly provided with a first guide block 2242, and the first guide block 2242 is located in the first guide slot 222a and is slidably connected with the sliding base 222, so that the first sliding seat 224a is slidably connected with the sliding base 222. In this embodiment, the first guide block 2242 is a dovetail guide block, and the first guide slot 222a is matched with the first guide block 2242, so as to avoid the problem that the first guide block 2242 and the first guide slot 222a are easily loosened, and make the sliding between the first slide 224a and the slide base 222 more stable. Furthermore, the second slide 224b is provided with a second guide slot 2242, the first slide 224a is further provided with a second guide block 2244 in a protruding manner, and the second guide block 2244 is located in the second guide slot 2242 and slidably connected with the second slide 224b, so that the first slide 224a is slidably connected with the second slide 224 b. In this embodiment, the second guide block 2244 is a dovetail guide block, and the second guide slot 2242 and the second guide block 2244 are adapted to avoid the problem that the second guide block 2244 and the second guide slot 2242 are easily loosened, so that the sliding between the first slide 224a and the second slide 224b is more stable.

As shown in fig. 5, the sliding seat main body 224 further includes a first adjusting member (not shown), the sliding seat 222 is provided with a first positioning hole 222b, the first adjusting member is disposed through the first positioning hole 222b and slidably connected with the sliding seat 222, and the first adjusting member abuts against the first sliding seat 224a, so that the first sliding seat 224a and the sliding seat 222 are relatively positioned. When the relative position between the first slider 224a and the slide base 222 needs to be adjusted, the first adjusting member is firstly loosened, then the relative position between the first slider 224a and the slide base 222 is adjusted, and finally the first adjusting member is locked to enable the first adjusting member to abut against the first slider 224a, so that the first slider 224a and the slide base 222 are relatively positioned, and meanwhile, the relative position between the first slider 224a and the slide base 222 is conveniently and quickly adjusted. In this embodiment, the first adjusting member is a positioning bolt or a positioning screw.

As shown in fig. 5, the sliding seat main body 224 further includes a second adjusting member, the second sliding seat 224b has a second positioning hole 2245, the second adjusting member is disposed through the second positioning hole 2245 and slidably connected to the first sliding seat 224a, and the second adjusting member abuts against the first sliding seat 224a, so that the first sliding seat 224a and the second sliding seat 224b are relatively positioned. When the relative position between the first slider 224a and the second slider 224b needs to be adjusted, the second adjusting member is firstly released, then the relative position between the first slider 224a and the second slider 224b is adjusted, and finally the second adjusting member is locked to enable the second adjusting member to abut against the second slider 224b, so that the second slider 224b and the first slider 224a are relatively positioned, and meanwhile, the relative position between the first slider 224a and the second slider 224b is conveniently and quickly adjusted. In this embodiment, the second adjusting member is a positioning bolt or a positioning screw.

As shown in fig. 5, further, the clamp 226 includes a clamp body 226a and a groove plate 226b, the clamp body 226a is connected to the groove plate 226b, and the clamp body 226a is used for clamping and positioning the workpiece 20. The groove plate 226b is connected to the slide holder main body 224, and the jig main body 226a is connected to the slide holder main body 224 through the groove plate 226b, so that the workpiece 20 is positioned on the jig 226. In this embodiment, the slot plate 226b is connected to the second slider 224b, and the second slider 224b is connected to the jig 226. Specifically, the groove plate 226b is welded or glued to the second slider 224b, so that the groove plate 226b is connected to the second slider 224 b. Further, the clamp body 226a is detachably connected to the groove plate 226b for periodic maintenance or replacement, thereby improving the convenience of the clamp 226. Further, the clamp 226 further includes a fixing member, the groove plate 226b has a fixing notch 2262, the clamp body 226a has a fixing hole 2264, the fixing member is disposed in the fixing hole 2264 in a penetrating manner, and the fixing member is partially located in the fixing notch 2262, so that the clamp body 226a is connected to the groove plate 226b through the fixing member, and the clamp body 226a is detachably connected to the groove plate 226 b. In this embodiment, the number of the fixing notches 2262 is plural, the fixing members are located in one of the fixing notches 2262, so that the connection position between the groove plate 226b and the clamp body 226a is adjustable, and the applicability and the convenience of the clamp 226 are improved.

As shown in fig. 1 and 7, in one embodiment, the pad printing machine 10 further includes a blanking mechanism 500, the blanking mechanism 500 is disposed on the machine body 100, the blanking mechanism 500 is disposed adjacent to the turntable 210, and the blanking mechanism 500 is used for taking out the workpiece 20 on the positioning assembly 220 when the positioning assembly 220 rotates to a position corresponding to the blanking mechanism 500 along with the turntable 210, so as to achieve automatic blanking and greatly improve pad printing efficiency of the workpiece 20.

As shown in fig. 7, in one embodiment, the blanking mechanism 500 includes a fixed seat 510, a sliding seat 520, a third driving assembly 530, a mounting seat 540, a fourth driving assembly 550, and a pick-and-place assembly 560. The fixed base 510 is connected to the machine body 100, and the sliding base 520 is slidably connected to the fixed base 510. The third driving assembly 530 is mounted on the sliding seat 520, and a power output end of the third driving assembly 530 is connected to the fixed seat 510 to drive the sliding seat 520 to slide relative to the fixed seat 510. The mounting seat 540 is connected to the sliding seat 520, so that the mounting seat 540 slides along with the sliding seat 520 relative to the fixed seat 510. Fourth drive assembly 550 is coupled to mount 540 such that fourth drive assembly 550 is fixedly mounted to mount 540. The pick-and-place assembly 560 is disposed at the power output end of the fourth driving assembly 550, such that the power output end of the fourth driving assembly 550 drives the pick-and-place assembly 560 to move relative to the mounting base 540. The pick-and-place assembly 560 is used for picking up the workpiece 20 on the positioning assembly 220 when the positioning assembly 220 rotates to a position corresponding to the blanking mechanism 500 along with the turntable 210, so as to realize automatic blanking.

As shown in fig. 7, further, the third driving assembly 530 includes a telescopic cylinder 532 and a fixing plate 534, the telescopic cylinder 532 is mounted on the sliding seat 520, the fixing plate 534 is connected to the fixing seat 510, a telescopic driving shaft of the telescopic cylinder 532 is connected to the fixing plate 534, so that the third driving assembly 530 is mounted on the sliding seat 520, and a power output end of the third driving assembly 530 is connected to the fixing seat 510. In this embodiment, the third driving assembly 530 is a telescopic cylinder 532 driving assembly. It is understood that in other embodiments, the third driving assembly 530 is not limited to the telescopic cylinder 532 driving assembly, but may be a motor driving assembly.

As shown in fig. 7, in order to make the sliding seat 520 be better connected with the fixed seat 510 in a sliding manner, a sliding block (not shown) is disposed on a side of the sliding seat 520 adjacent to the fixed seat 510, and a guide rail 512 is disposed on the fixed seat 510, on which the sliding block is slidably disposed, so that the sliding seat 520 is better connected with the fixed seat 510 in a sliding manner. In this embodiment, the fixed seat 510 and the sliding seat 520 are slidably connected by means of a sliding fit of a guide rail and a slider, and in other embodiments, the fixed seat 510 and the sliding seat 520 are also slidably connected by means of a sliding fit of a guide rod 413 c.

As shown in fig. 7, the discharging mechanism 500 further includes a first stroke sensing switch 570, the first stroke sensing switch 570 is disposed on the fixing plate 534, the first stroke sensing switch 570 is electrically connected to the control end of the third driving component 530 and the control end of the fourth driving component 550, respectively, and the first stroke sensing switch 570 is configured to send a first sensing signal when the sliding seat 520 slides to a first predetermined position relative to the fixing seat 510. When the first stroke sensing switch 570 sends the first sensing signal, the third driving component 530 stops moving, the fourth driving component 550 moves in the positive direction to drive the pick-and-place component 560 to move in a direction close to the workpiece 20 positioned on the positioning component 220, and then the pick-and-place component 560 picks up the workpiece 20; the fourth driving assembly 550 then acts in the opposite direction to move the pick-and-place assembly 560 away from the workpiece 20 positioned on the positioning assembly 220; the third driving assembly 530 is then operated to drive the sliding seat 520 to slide relative to the fixed seat 510 in a direction away from the first stroke sensing switch 570, so as to accurately remove the workpiece 20.

As shown in fig. 7, the pad printing machine 10 further includes a feeding mechanism 600, the feeding mechanism 600 is disposed adjacent to the blanking mechanism 500, and the feeding mechanism 600 is used for receiving and feeding the workpiece 20. The pick-and-place assembly 560 is used for taking out the workpiece 20 on the positioning assembly 220 when the positioning assembly 220 rotates to a position corresponding to the blanking mechanism 500 along with the turntable 210, and placing the workpiece on the material conveying mechanism 600, so as to realize automatic blanking of the workpiece 20. In this embodiment, the feeding mechanism 600 is a belt conveying mechanism. The blanking end of the blanking mechanism 500 is located above the feeding mechanism 600, so that the picking and placing assembly 560 of the blanking mechanism 500 can place the workpiece 20 on the feeding mechanism 600. It can be understood that the workpieces 20 are transported to a designated position by the material transporting mechanism 600, for example, a material collecting box is provided at the discharging end of the material transporting mechanism 600, so that the workpieces 20 are transported into the material collecting box by the material transporting mechanism 600, and the workpieces 20 are prevented from being stacked at a position corresponding to the discharging end of the material transporting mechanism 500.

As shown in fig. 7, the blanking mechanism 500 further includes a second stroke sensing switch 580, the second stroke sensing switch 580 is disposed on the fixing base 510, the second stroke sensing switch 580 is electrically connected to the control end of the third driving component 530 and the control end of the fourth driving component 550, respectively, and the second stroke sensing switch 580 is configured to send a second sensing signal when the sliding base 520 slides to a second predetermined position relative to the fixing base 510. When the second stroke sensing switch 580 sends the second sensing signal, the third driving component 530 stops moving, the fourth driving component 550 moves in the positive direction to drive the picking and placing component 560 to move in the direction close to the feeding mechanism 600, and the picking and placing component 560 releases the workpiece 20 from the feeding mechanism 600, so that the picking and placing component 560 can accurately place the workpiece 20 on the feeding mechanism 600. In the embodiment, the first stroke-sensing switch 570 and the second stroke-sensing switch 580 are matched to realize that the pick-and-place assembly 560 can quickly and accurately pick out and place the workpiece 20 of the positioning assembly 220 on the feeding mechanism 600.

As shown in fig. 7, the fixing base 510 further includes a connection base 511 and a fixing base main body 513, the connection base 511 is fixed on the machine body 100, and the fixing base main body 513 is obliquely disposed on the connection base 511, so that the fixing base main body 513 is obliquely disposed relative to the machine body 100. In this embodiment, the connection base 511 is vertically connected to the body 100. The sliding seat 520 is slidably connected to the fixing seat main body 513, so that the sliding seat 520 is slidably connected to the fixing seat 510, and since the fixing seat main body 513 is disposed obliquely with respect to the machine body 100, the picking and placing assembly 560 can pick up and place the workpiece 20 on the positioning assembly 220 at a higher position onto the feeding mechanism 600 at a lower position during the sliding process of the sliding seat 520 with respect to the fixing seat main body 513. It can be understood that even if the difference between the position of the workpiece 20 on the pick-and-place assembly 560 and the position on the feeding mechanism 600 is small, the fixing base main body 513 is disposed obliquely with respect to the machine body 100, which is beneficial to reducing the operation stroke of the fourth driving assembly 550.

As shown in fig. 7, the pick-and-place assembly 560 further includes a suction cup holder 562, a suction cup body (not shown) and a pumping device (not shown), the suction cup holder 562 is connected to the power output end of the fourth driving assembly 550, the suction cup body is disposed on the suction cup holder 562, and the suction cup body is communicated with the action end of the pumping device. When the pick-and-place assembly 560 grabs the workpiece 20, the pump device performs pumping operation to make the suction cup body suck the workpiece 20, so that the suction cup body grabs the workpiece 20. When the pick-and-place assembly 560 releases the workpiece 20, the pumping device pumps air to cause the chuck body to release the workpiece 20. In this embodiment, the pumping device may be a bi-directional pump body or other element.

As shown in fig. 7, in order to connect the suction cup holder 562 to the power output end of the fourth driving assembly 550, further, the fourth driving assembly 550 includes a lifting cylinder 552 and a mounting plate 554, the lifting cylinder 552 is fixedly mounted on the mounting base 540, and a power shaft of the lifting cylinder 552 is connected to the mounting plate 554 to drive the mounting plate 554 to move up and down relative to the turntable 210. The mounting plate 554 is connected to the suction cup holder 562, connecting the suction cup holder 562 to the power output of the fourth drive assembly 550. In this embodiment, the fourth driving assembly 550 is a telescopic cylinder 532 assembly, and in other embodiments, the fourth driving assembly 550 may also be a motor assembly.

As shown in fig. 7, when the pick-and-place device 560 performs the blanking process after grabbing the workpiece 20 and then moves between the positioning device 220 and the feeding mechanism 600 along with the third driving device 530 and the fourth driving device 550, the problem that the workpiece 20 falls out, such as the workpiece 20 falling into the gap between the machine body 100 and the feeding mechanism 600, is not eliminated. To avoid the problem of the workpiece 20 falling outside, the pad printing machine 10 further includes a sliding guide frame 700, the sliding guide frame 700 is obliquely disposed on the machine body 100, the sliding guide frame 700 is disposed adjacent to the turntable 210, the sliding guide frame 700 is disposed corresponding to the grabbing component, and the sliding guide frame 700 is disposed below the grabbing component. The sliding material guide frame 700 is provided with a sliding material guide groove, a discharge port of the sliding material guide groove is positioned above the material conveying mechanism 600, when the workpiece 20 falls from the grabbing component, the workpiece 20 slides into the material conveying mechanism 600 along the sliding material guide groove of the sliding material guide frame 700, and the problem that the workpiece 20 falls outside is avoided.

As shown in fig. 7 and 8, in order to improve the applicability of the blanking mechanism 500, in one embodiment, the mounting base 540 is movably connected to the sliding base 520, so that the relative position between the mounting base 540 and the sliding base 520 can be adjusted, and further, the picking and placing angle of the picking and placing assembly 560 can be adjusted, thereby improving the applicability of the blanking mechanism 500.

As shown in fig. 7 and 8, further, the mounting block 540 is rotatably coupled to the sliding block 520. The blanking mechanism 500 further includes a locking member (not shown), the mounting seat 540 is provided with an arc-shaped groove 542, the sliding seat 520 is provided with a connecting hole 524, and the locking member is respectively penetrated through the arc-shaped groove 542 and the connecting hole 524 to position the mounting seat 540 relative to the sliding seat 520, so that the relative connecting position of the mounting seat 540 and the sliding seat 520 can be adjusted, and further, the picking and placing angle of the picking and placing assembly 560 can be adjusted. When the relative connection position between the mounting seat 540 and the sliding seat 520 needs to be adjusted, the locking member is loosened, the relative angle position between the mounting seat 540 and the sliding seat 520 is adjusted, and finally the locking member is screwed down, so that the relative angle position between the mounting seat 540 and the sliding seat 520 can be flexibly adjusted, and the adjustment of the taking and placing angle of the taking and placing assembly 560 is completed. In this embodiment, arc recess 542 is fan-shaped arc wall, and the center of arc recess 542 is located same straight line with the center that mount pad 540 rotated for sliding seat 520, and in the rotation process of mount pad 540 for sliding seat 520, arc recess 542 can correspond with connecting hole 524 better like this, is favorable to the relative angular position between mount pad 540 and the sliding seat 520 to counterpoint fast and nimble regulation. The locking piece is a screw or a bolt.

As shown in fig. 6 and 9, in one embodiment, the scraper mechanism 460 includes a driving source 462, a fixing frame 464, and a scraper assembly 466, the driving source 462 is disposed on the sliding seat 420, and a power output end of the driving source 462 is connected with the fixing frame 464 to drive the fixing frame 464 to move relative to the sliding seat 420. The scraper assembly 466 is disposed on the fixing frame 464, and the scraper assembly 466 is partially disposed in the ink tank 432 for scraping off the ink on the surface of the steel plate, so that the scraper mechanism 460 can scrape off the ink on the surface of the steel plate. In the present embodiment, the driving source 462 is a telescopic cylinder 532 or an electric cylinder. The power shaft of the driving source 462 is connected with the fixed frame 464 to drive the fixed frame 464 to move relative to the sliding seat 420.

As shown in fig. 9, further, the fixing frame 464 is slidably connected to the sliding seat 420, so that the movement of the fixing frame 464 relative to the sliding seat 420 is more smooth. In one embodiment, the fixing frame 464 includes a fixing main frame 464a and a first guide rod 464b connected to each other, the sliding seat 420 has a first sliding slot 423, the first guide rod 464b is located in the first sliding slot 423 and slidably connected to the sliding seat 420, the power output shaft of the driving source 462 is connected to the fixing main frame 464a, and the scraper assembly 466 is connected to the fixing main frame 464a, so that the sliding seat 420 is slidably connected to the fixing frame 464.

As shown in fig. 9, the fixing frame 464 further includes a connection guide 464c, the fixing main frame 464a is connected to the connection guide 464c, and the scraper assembly 466 is connected to the connection guide 464c, such that the scraper assembly 466 is connected to the fixing main frame 464a through the connection guide 464 c. In this embodiment, the fixing main frame 464a is detachably coupled to the coupling guide 464c, so that the fixing main frame 464a and the coupling guide 464c are periodically maintained or replaced. Specifically, the fixing frame 464 includes a locking member, the fixing main frame 464a is provided with a first fixing hole 4643, the connecting guide block 464c is provided with a second fixing hole 4645, and the locking member is respectively inserted into the first fixing hole 4643 and the second fixing hole 4645, so that the fixing main frame 464a is connected with the connecting guide block 464 c. It is understood that in other embodiments, the connection between the fixing main frame 464a and the connection guide 464c may also be non-detachable, for example, the fixing main frame 464a and the connection guide 464c are welded or glued.

As shown in fig. 9 and 10, the scraper assembly 466 is slidably connected to the connecting guide 464c, so that the connecting position of the scraper assembly 466 and the connecting guide 464c can be adjusted, and the applicability of the scraper mechanism 460 is improved. Specifically, a sliding groove 4646 is formed in one surface of the connecting guide block 464c, which is away from the fixed main frame 464a, the scraper assembly 466 is convexly provided with an adjusting block 4662, and the adjusting block is located in the sliding groove and is in sliding connection with the connecting guide block 464c, so that the connecting position of the adjusting block and the connecting guide block 464c is adjustable, and the applicability of the scraper mechanism 460 is improved. In this embodiment, the sliding groove is a T-shaped sliding groove, and the shape of the adjusting block is matched with the sliding groove, so that the adjusting block is not easy to separate from the sliding groove when sliding in the sliding groove. In order to avoid the scraper component 466 from separating from the connecting guide block 464c in the ink scraping process, and meanwhile, the connecting position of the scraper component 466 and the connecting guide block 464c can be adjusted, further, the pad printing machine 10 further comprises a positioning piece, the adjusting block is provided with a positioning hole corresponding to the sliding groove, the positioning piece is arranged in the positioning hole in a penetrating mode, part of the positioning piece is located on the inner wall of the sliding groove and abutted to the connecting guide block 464c, the adjusting block and the connecting guide block 464c are relatively positioned, and meanwhile, the problem that the scraper component 466 separates from the connecting guide block 464c in the ink scraping process is avoided. When the relative position between the adjusting block and the connecting guide block 464c needs to be adjusted, the relative position between the adjusting block and the connecting guide block 464c can be adjusted by loosening the positioning piece, and after the relative position between the adjusting block and the connecting guide block 464c is adjusted, the positioning piece is locked, so that the adjustment of the relative position between the adjusting block and the connecting guide block 464c is completed.

As shown in fig. 9 and 10, the scraper assembly 466 further includes a scraper frame 466a, a pressing member 466b, a clamping plate assembly 466c, a locking member (not shown), and a scraper body (not shown), and the scraper frame 466a is connected to the connecting guide 464c, so that the scraper assembly 466 is connected to the connecting guide 464 c. The pressing member 466b and the clamp assembly 466c are respectively located on both sides of the scraper frame 466a, the pressing member 466b and the clamp assembly 466c are both connected to the scraper frame 466a through locking fasteners, and the pressing member 466b is used for adjusting the position where the clamp assembly 466c is connected to the scraper frame 466 a. The clamping plate assembly 466c is used for clamping the fixed scraper body, and when the scraper frame 466a moves along with the connecting guide block 464c of the fixing frame 464, the scraper frame 466a can drive the scraper body to move so as to scrape off ink on the surface of the steel plate, so that the scraper assembly 466 can scrape off the ink on the surface of the steel plate. Referring to fig. 11, in this embodiment, the scraper frame 466a is provided with a middle hole 4661, the pressing member is provided with a first fastening hole 4667, the clamping plate assembly 466c is provided with a second fastening hole 4666, and the locking fasteners are respectively inserted into the first fastening hole, the middle hole and the second fastening hole, so that the pressing member and the clamping plate assembly 466c are fixedly mounted on the scraper frame 466a through the locking fasteners. Specifically, the first and second fastening holes are waist-shaped holes, so that the positions of the compression member and the clamp plate assembly 466c connected to the doctor blade frame 466a are adjustable, and the convenience of use of the pad printing machine 10 is improved. Furthermore, the inclined surface 4668 is arranged on the side, connected with the pressing piece 466b, of the scraper frame 466a, so that the pressing piece 466b is obliquely arranged on the scraper frame 466a, and since the first fixing hole and the second fixing hole are both kidney-shaped holes, the connecting positions of the pressing piece 466b, the clamping plate assembly 466c and the scraper frame 466a are both adjustable. Furthermore, the scraper frame 466a is provided with a sliding groove 4669, and the pressing piece 466b is slidably disposed in the sliding groove, so that the pressing piece 466b is slidably connected with the scraper frame 466a, and the relative connection position of the pressing piece 466b and the scraper frame 466a can be quickly and accurately adjusted.

As shown in fig. 10, further, the clamp assembly 466c includes a fixing plate 4672, a first clamp plate 4674 and a second clamp plate 4676, the fixing plate 4672 is connected to the first clamp plate 4674, the second clamp plate 4676 is disposed opposite to the first clamp plate 4674, the second clamp plate 4676 is connected to the first clamp plate 4674, the second clamp plate 4676 and the first clamp plate 4674 clamp the fixed scraper body together, so that the scraper body is fixed to the clamp assembly 466 c. In this embodiment, the second fastening hole is opened on the fastening plate 4672. Further, the first clip member 4674 is welded to the second clip member 4676, such that the first clip member 4674 is firmly connected to the second clip member 4676. It will be appreciated that in other embodiments, the first and

second bridge members

4674, 4676 may also be integrally formed, thereby providing a more compact structure of the bridge assembly 466c while providing a secure connection between the first and

second bridge members

4674, 4676. Further, a clamping groove 467a for clamping the scraper assembly 466 is formed between the first and

second clamping plates

4674, 4676. First splint 4674 includes first splint main part and first crimping post, and the first screw that communicates with the centre gripping groove is seted up to first splint main part, and first crimping post wears to locate in first screw and with first splint main part spiro union, and the tip that first crimping post is located the centre gripping groove is used for the butt in the scraper body, makes the scraper body centre gripping fix in splint subassembly 466c reliably. In this embodiment, the first cleat body is connected to the second cleat 4676. The first crimp post may be a stud or screw or other non-standard. Further, splint subassembly 466c still includes second crimping post, and second splint 4676 offers the second screw with centre gripping groove intercommunication, and second crimping post wears to locate in the second screw and with second splint main part spiro union, and the tip that second crimping post is located the centre gripping groove is used for the butt in the scraper body, under the combined action of first crimping post and second crimping post, makes the scraper body centre gripping fix splint subassembly 466c more reliably. Furthermore, the scraper body is bent in the clamping groove, and the clamping groove is matched with the scraper body in shape, so that the scraper body is clamped on the inner wall of the clamping groove more firmly. In this embodiment, the doctor body is in a zigzag shape in the holding groove.

As shown in fig. 6, the base 410 further includes a base main body 411 and a mounting plate 413 connected to each other, the first driving assembly 440 is disposed on the mounting plate 413, and the sliding seat 420 is slidably connected to the mounting plate 413, so that the sliding seat 420 is slidably connected to the base 410. Further, the mounting plate 413 includes a first fixing plate 413a, a second fixing plate 413b and a guide rod 413c, the first fixing plate 413a and the second fixing plate 413b are disposed in parallel, and the first fixing plate 413a and the second fixing plate 413b are fixed to the base body 411. The first driving assembly 440 is mounted to the first fixing plate 413 a. Both ends of the guide rod 413c are respectively connected to the first fixing plate 413a and the second fixing plate 413b, and the sliding seat 420 is slidably connected to the guide rod 413c, so that the sliding seat 420 is slidably connected to the base 410. It is understood that the sliding seat 420 slides back and forth between the first fixing plate 413a and the second fixing plate 413b, so that the second driving assembly 450, the squeegee mechanism 460 and the print head mechanism 470 move along with the sliding seat 420. In this embodiment, the sliding seat 420 slides in a horizontal sliding direction with respect to the guide rod 413c, and the power output end of the second driving assembly 450 has a vertical power direction.

As shown in fig. 6 and 12, in one embodiment, the print head mechanism 470 includes a connecting slider 472, a print head holder 474, a print head body 476 and a rubber head 478, wherein the connecting slider 472 is connected to the power shaft of the second driving assembly 450, so that the power shaft of the second driving assembly 450 drives the connecting slider 472 to move relative to the connecting slider 472. The print head seat 474 is connected to the connecting slide seat 472, the print head body 476 is connected to the print head seat 474, the glue head 478 is connected to the print head body 476, and the glue head 478 is used for impressing the pattern of the steel plate on the workpiece 20, so that the print head mechanism 470 impresses the pattern of the steel plate on the workpiece 20. Further, the connecting sliding seat 472 is slidably connected to the sliding seat 420, so that the second driving assembly 450 drives the connecting sliding seat 472 to move more smoothly relative to the connecting sliding seat 472. Specifically, the connecting sliding base 472 includes a connecting base 472a and a sliding rod 472b connected to each other, the sliding rod is slidably connected to the sliding base 420, the connecting base is connected to the power shaft of the second driving assembly 450, and the print head base 474 is connected to the connecting base, so that the print head base 474 is connected to the connecting sliding base 472. Further, the print head seat 474 is slidably connected to the print head body 476, so that the relative connection position between the print head seat 474 and the print head body 476 can be adjusted, thereby improving the applicability of the pad printer 10. In the present embodiment, the print head base 474 has a dovetail groove 474a, and the print head body 476 has a dovetail projection 476a protruding therefrom, which is slidably connected to the print head base 474 in the dovetail groove, so that the print head body 476 is reliably slidably connected to the print head base 474. The tape head 478 is connected to a surface of the printhead body 476 facing away from the printhead seat 474. Further, the rubber head 478 is an elastic rubber head 478. In this embodiment, the rubber head 478 is a silicone rubber head 478, so that the elasticity of the rubber head 478 is moderate.

Referring to fig. 1 again, the pad printing machine 10 further includes a console box panel 800 disposed on the machine body 100. The control box panel is in communication connection with the control ends of the first driving assembly 440, the second driving assembly 450, the printing head mechanism 470 and the blanking mechanism 500, and a user can set control parameters, such as the grabbing speed of the blanking mechanism 500, through the control box panel, and control the first driving assembly 440, the second driving assembly 450, the printing head mechanism 470 and the blanking mechanism 500 through the control box panel, so as to realize automatic pad printing. In this embodiment, the control box panel is in communication with the first drive assembly 440, the second drive assembly 450, the print head mechanism 470, the third drive assembly 530, the fourth drive assembly 550, and the control end of the pumping device, respectively. Further, the console box panel is also communicatively connected to a control terminal of the driving source 462 to control the operation of the driving source 462. It is understood that the console panel may be a touch panel or a non-touch panel.

1. because the turntable 210 is rotatably connected to the base, and at least two positioning assemblies 220 are disposed on the turntable 210, each positioning assembly 220 positions the workpiece 20, that is, the object to be printed, when the rotary driving mechanism 300 drives the turntable 210 to rotate relative to the machine body 100 so that one of the positioning assemblies 220 corresponds to the pad printing device 400, the first driving assembly 440 drives the sliding seat 420 to slide relative to the base 410, so that the sliding seat 420 drives the scraper mechanism 460 to scrape off ink on the surface of the steel plate in the ink tank 432, and because an included angle exists between the power output direction of the second driving assembly 450 and the power output direction of the first driving assembly 440, the print head mechanism 470 moves to any position in a vertical space, so that the print head mechanism 470 can imprint the pattern of the steel plate on the workpiece 20, thereby enabling the pad printing machine 10 to perform pad printing on the workpiece 20;

2. when one of the positioning assemblies 220 corresponds to the pad printing device 400, the print head mechanism 470 can print the pattern of the steel plate on the workpiece 20, and can clamp the workpieces 20 of the other positioning assemblies 220; after the workpiece 20 on the current positioning assembly 220 is imprinted, the rotary driving mechanism 300 drives the rotary disc 210 to rotate continuously relative to the machine body 100, so that the next positioning assembly 220 on the rotary disc 210 corresponds to the pad printing device 400, and the imprinted workpiece 20 can be taken out of the positioning assembly 220 to clamp a new workpiece 20 again, thereby realizing the process of continuously pad printing the object to be printed by the pad printing machine 10, and greatly improving the pad printing efficiency of the pad printing machine 10 on a single object to be printed.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A pad printing machine, comprising:

a body;

2. The pad printer according to claim 1, wherein a power output direction of the second drive assembly is perpendicular to a power output direction of the first drive assembly.

3. The pad printing machine according to claim 1, wherein each positioning assembly comprises a slide base, a slide base body and a clamp, the slide base is arranged on the turntable, the slide base body is slidably connected to a surface of the slide base, which faces away from the turntable, the clamp is connected to the slide base body, and the clamp is used for positioning the workpiece.

4. The pad printing machine according to claim 3, wherein the carriage body comprises a first carriage and a second carriage, the first carriage being slidably connected to the carriage base, the clamp being connected to a side of the second carriage facing away from the first carriage.

5. The pad printing machine according to claim 1, wherein the blanking mechanism comprises a fixed seat, a sliding seat, a third driving component, a mounting seat, a fourth driving component and a taking and placing component; the fixed seat is connected with the machine body; the sliding seat is connected with the fixed seat in a sliding manner, the third driving assembly is arranged on the sliding seat, and the power output end of the third driving assembly is connected with the fixed seat; the mounting seat is connected to the sliding seat; the fourth driving assembly is connected to the mounting seat; the taking and placing assembly is arranged at the power output end of the fourth driving assembly and used for taking out the workpiece on the positioning assembly when the positioning assembly rotates to the position corresponding to the blanking mechanism along with the turntable.

6. Pad printing machine according to claim 5, characterized in that said mounting is movably connected to said carriage.

7. The pad printer of claim 6, wherein said mounting base is pivotally connected to said carriage; the blanking mechanism further comprises a locking piece, an arc-shaped groove is formed in the mounting seat, a connecting hole is formed in the sliding seat, and the locking piece is arranged in the arc-shaped groove and the connecting hole in a penetrating mode respectively.

8. The pad printing machine according to claim 1, wherein the scraper mechanism comprises a driving source, a fixing frame and a scraper component, the driving source is arranged on the sliding seat, a power output end of the driving source is connected with the fixing frame, the scraper component is arranged on the fixing frame, and the scraper component is partially positioned in the ink groove and used for scraping ink on the surface of the steel plate.

9. The pad printing machine according to claim 8, wherein the fixing frame comprises a fixing main frame and a first guide rod which are connected, the sliding seat is provided with a first sliding groove, the first guide rod is positioned in the first sliding groove and is in sliding connection with the sliding seat, a power output shaft of the driving source is connected with the fixing main frame, and the scraper component is connected with the fixing main frame.

10. The pad printing machine according to any one of claims 1 to 9, wherein the print head mechanism includes a connection slider, a print head base, a print head body, and a rubber head, the connection slider is connected to the power shaft of the second driving unit, the print head base is connected to the connection slider, the print head body is connected to the print head base, the rubber head is connected to the print head body, and the rubber head is used for imprinting the pattern of the steel plate on the workpiece.