A pad printing device

Abstract

A pad printing device includes a main body and a pad printing mechanism, a conveying mechanism, and a cleaning mechanism disposed on the main body. The conveying mechanism is located at the front of the pad printing mechanism and includes a conveyor belt and multiple clamps. The conveyor belt is circular and its length direction is arranged along the left-right direction. The multiple clamps are spaced circumferentially on the conveyor belt, and each clamp is used to fix a product to be printed. The space on the main body located within the conveyor belt is an installation space, and the cleaning mechanism is installed in the installation space, with its length direction aligned with the length direction of the installation space. Compared with the prior art, the cleaning mechanism of this pad printing device is compact, reducing the footprint of the device.

Description

Technical Field

[0001] This utility model belongs to the technical field of pad printing devices, and specifically relates to a pad printing device. Background Technology

[0002] In the prior art, to solve the problem of ink residue during pad printing, Chinese patent CN 211000429U proposes an improved pad printing device. This device, based on an automatic turntable, a pad printing table, and a robotic arm, introduces a tape-adhesive cleaning mechanism. Specifically, this cleaning mechanism is positioned between the pad printing table and the automatic turntable, with the three arranged linearly: the pad printing table at the front, the cleaning mechanism in the center, and the automatic turntable at the rear. This design effectively solves the image "ghosting" problem caused by turntable indexing errors and mechanical wear by cleaning residual ink on the pad printing head through tape adhesion.

[0003] While the above solution has some effect on improving printing quality, its layout design introduces new drawbacks: the pad printing table, cleaning mechanism and automatic turntable must be set up sequentially from front to back, which greatly increases the overall length of the equipment and occupies too much factory floor space. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a pad printing device.

[0005] To achieve the above objectives, this utility model discloses a pad printing device, including a machine body and a pad printing mechanism, a conveying mechanism and a cleaning mechanism disposed on the machine body;

[0006] The conveying mechanism is located in front of the pad printing mechanism. The conveying mechanism includes a conveyor belt and multiple clamps. The conveyor belt is circular and its length direction is arranged along the left and right directions. The multiple clamps are spaced apart on the conveyor belt in the circumferential direction. Each clamp is used to fix a product to be printed.

[0007] The space on the machine body located within the conveyor belt is an installation space, and the cleaning mechanism is installed in the installation space, with the length direction of the cleaning mechanism being aligned with the length direction of the installation space.

[0008] Furthermore, the cleaning mechanism includes a support, an unwinding roller, a winding roller, and a motor. The unwinding roller and the winding roller are mounted on the support. The unwinding roller is used to connect the tape roll, and the winding roller is used to wind up the tape. The motor is connected to the unwinding roller and / or the winding roller and is used to wind up the used tape to the winding roller.

[0009] Furthermore, the bracket is provided with multiple sets of tape tensioning components, and the multiple sets of tape tensioning components are spaced apart along the length direction of the tape;

[0010] The tape tensioning assembly includes a first connecting platform, a second connecting platform, and a rolling shaft. The first and second connecting platforms are mounted on the bracket and located on both sides of the tape, respectively. The two ends of the rolling shaft are rotatably connected to the first and second connecting platforms, respectively, and the bottom of the rolling shaft is used to abut against the tape.

[0011] Furthermore, the rolling shaft is arranged along the width direction of the tape.

[0012] Furthermore, the outer wall of the rolling shaft is provided with a groove.

[0013] Furthermore, the motor is positioned along the width direction of the conveyor belt.

[0014] Furthermore, the bottom surface of the rolling shaft is spaced apart from the support.

[0015] Furthermore, the bracket is provided with a support member, which is arranged along the width direction of the tape, and the top surface of the support member is used to support the bottom surface of the tape; there are multiple support members, which are spaced apart along the length direction of the tape.

[0016] Furthermore, the support member is elongated.

[0017] Furthermore, the bracket includes a base and a support plate, the support plate being slidably connected to the support plate, and the cleaning mechanism being mounted on the support plate.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] By setting the conveyor belt in a loop and utilizing the internal space of the loop to install the cleaning structure, the installation location of the cleaning structure is not only more compact than that of traditional cleaning structures, but the length of the entire device in the front-to-back direction is also smaller, reducing the footprint of the device. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural schematic diagram of the pad printing apparatus in the embodiment;

[0021] Figure 2 for Figure 1 Top view of the conveying mechanism, cleaning structure, and drying structure;

[0022] Figure 3 for Figure 2 A schematic diagram of the three-dimensional structure;

[0023] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle;

[0024] Body 100; Installation space 110;

[0025] 200 pad printing mechanism; 210 printing head;

[0026] Conveying mechanism 300; conveyor belt 310; clamp 320;

[0027] Cleaning mechanism 400; bracket 410; unwinding roller 420; winding roller 430; motor 440; tape tensioning assembly 450; first connecting platform 451; second connecting platform 452; rolling shaft 453; support member 460; base 470; support plate 480;

[0028] Drying mechanism 500; outer casing 510; fan 520. Detailed Implementation

[0029] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] A pad printing device, see Figures 1-4 It includes a machine body 100 and a pad printing mechanism 200, a conveying mechanism 300 and a cleaning mechanism 400 disposed on the machine body 100.

[0031] The pad printing mechanism 200 is mounted on the machine body 100 and includes a gravure plate, a print head 210, etc. The print head 210 dips the ink on the gravure plate onto its surface and then transfers it to the product to be printed, thereby completing the printing of the product. The pad printing mechanism 200 in this embodiment adopts the existing pad printing mechanism 200, and its specific structure will not be described in detail.

[0032] A conveying mechanism 300 is located in front of the pad printing mechanism 200. The conveying mechanism 300 includes a conveyor belt 310 and multiple clamps 320. The conveyor belt 310 is circular, and its length is arranged along the left-right direction. In the prior art, pad printing devices have also used this type of conveying mechanism 300; for example, CN209683149U, as provided in patent publication number CN209683149U, uses a circular conveyor belt 310 to convey products to be printed. Multiple clamps 320 are spaced circumferentially on the conveyor belt 310, and each clamp 320 is used to fix one product to be printed.

[0033] In this embodiment, one long side of the conveyor belt is located at the front of the machine body 100 for feeding, and the other long side is close to the pad printing mechanism 200 for printing, while shortening the travel of the print head 210.

[0034] The space within the conveyor belt 310 on the machine body 100 is the installation space 110. The cleaning mechanism 400 is installed within the installation space 110, and the length direction of the cleaning mechanism 400 is aligned with the length direction of the installation space 110. Utilizing the annular internal space for installing the cleaning structure is not only more compact than the traditional installation location of cleaning structures, but also reduces the overall length of the device in the front-to-back direction, thus reducing the footprint of the device.

[0035] In this embodiment, the cleaning structure removes residual ink from the print head 210 using adhesive tape, ensuring printing quality. Specifically, the cleaning mechanism 400 includes a support 410, an unwind roller 420, a rewind roller 430, and a motor 440. The unwind roller 420 and the rewind roller 430 are mounted on the support 410. The unwind roller 420 is used to connect the tape roll, and the rewind roller 430 is used to rewind the tape. The motor 440 is connected to the unwind roller 420 and / or the rewind roller 430, specifically to the rewind roller 430, to rewind the used tape onto the rewind roller 430. When using the cleaning mechanism 400, the print head 210 moves above the tape and then downwards, causing residual ink on the print head 210 to adhere to the tape. When the tape is no longer effectively cleaned, the motor 440 drives the rewind roller 430 to rotate, pulling out a new roll of tape.

[0036] In this embodiment, the conveyor belt 310 is racetrack-shaped, with its two long sides arranged along the left-right direction. Multiple clamps 320 are located on each long side. The pad printing mechanism 200 also has multiple printing heads 210, enabling one-time pad printing of products on the clamps 320 on the long sides, thus improving production efficiency. The cleaning mechanism 400 is arranged along its long side in the same direction as the installation space 110. Specifically, the unwinding roller 420 and the take-up roller 430 are located on the left and right sides of the installation space 110 along its length. The tape is arranged within the length of the installation space 110, allowing the tape to be pulled out to a certain length, thereby cleaning all printing heads 210.

[0037] The motor 440 is positioned along the width of the tape to ensure the tape's laying length, thus enabling adhesion to all printheads 210. The width direction of the tape refers to the direction perpendicular to the winding direction after the tape is pulled out; correspondingly, the length direction of the tape is the unwinding direction.

[0038] In this embodiment, the support 410 is provided with multiple sets of tape tensioning components 450. These components are spaced apart along the length of the tape. The adhesive surface of the tape is pressed down by the tape tensioning components 450 to maintain tension. When the print head 210 is placed on the tape, the tape is less likely to sink, especially in the middle, ensuring effective cleaning. Each print head 210 cleans between two adjacent sets of tape tensioning components 450.

[0039] The tape tensioning assembly 450 includes a first connecting platform 451, a second connecting platform 452, and a rolling shaft 453. The first connecting platform 451 and the second connecting platform 452 are mounted on the bracket 410 and located on both sides of the tape. The two ends of the rolling shaft 453 are rotatably connected to the first connecting platform 451 and the second connecting platform 452, respectively. After the tape is tensioned, its adhesive surface abuts against the bottom of the rolling shaft 453. The rotatable connection of the rolling shaft 453 ensures smooth tape winding. Furthermore, the rolling shaft 453 is arranged along the width direction of the tape, and the tape winding direction is parallel to the tangential direction of the rolling shaft 453, thus making tape winding even smoother.

[0040] To reduce the adhesion between the adhesive surface of the tape and the roller 453, a groove is provided on the outer wall of the roller 453. The groove reduces the contact area between the roller 453 and the tape, thereby making the tape winding smoother.

[0041] In this embodiment, the bottom surface of the rolling shaft 453 is spaced apart from the bracket 410, so that the bottom of the tape does not contact the top surface of the bracket 410, allowing the tape to be smoothly wound up.

[0042] In this embodiment, the bracket 410 is provided with a support member 460, which is arranged along the width direction of the tape. The top surface of the support member 460 is used to support the bottom surface of the tape. There are multiple support members 460, and the specific number can be set as needed. The multiple support members 460 are spaced apart along the length direction of the tape. By setting the support member 460 to support the tape, the problem of poor cleaning effect caused by the tape easily sinking is greatly alleviated.

[0043] Among them, the support member 460 is long and narrow, specifically a cylindrical pivot.

[0044] In this embodiment, the bracket 410 includes a base 470 and a support plate 480. The base 470 is mounted on the body 100, and the support plate 480 is slidably connected to the support plate 480. The cleaning mechanism 400 is mounted on the support plate 480.

[0045] In this embodiment, the pad printing apparatus further includes a drying mechanism 500, which includes a housing 510, a heating element, and a fan 520. The heating element is disposed inside the housing 510, and the fan 520 is mounted above the heating element. An air outlet is provided at the bottom of the housing 510. After printing, the conveyor belt 310 moves the fixture 320 to the drying position, and the fan 520 rotates to blow hot air onto the fixture 320, accelerating the curing of the pattern.

[0046] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A pad printing apparatus, comprising a main body and a pad printing mechanism, a conveying mechanism, and a cleaning mechanism disposed on the main body, characterized in that: The conveying mechanism is located in front of the pad printing mechanism. The conveying mechanism includes a conveyor belt and multiple clamps. The conveyor belt is circular and its length direction is arranged along the left and right directions. The multiple clamps are spaced apart on the conveyor belt in the circumferential direction. Each clamp is used to fix a product to be printed. The space on the machine body located within the conveyor belt is an installation space, and the cleaning mechanism is installed in the installation space, with the length direction of the cleaning mechanism being aligned with the length direction of the installation space.

2. Pad printing apparatus according to claim 1, characterized in that: The cleaning mechanism includes a support, an unwinding roller, a winding roller, and a motor. The unwinding roller and the winding roller are mounted on the support. The unwinding roller is used to connect the tape roll, and the winding roller is used to wind up the tape. The motor is connected to the unwinding roller and / or the winding roller and is used to wind up the used tape to the winding roller.

3. Pad printing apparatus according to claim 2, wherein: The bracket is provided with multiple sets of tape tensioning components, and the multiple sets of tape tensioning components are spaced apart along the length of the tape. The tape tensioning assembly includes a first connecting platform, a second connecting platform, and a rolling shaft. The first and second connecting platforms are mounted on the bracket and located on both sides of the tape, respectively. The two ends of the rolling shaft are rotatably connected to the first and second connecting platforms, respectively, and the bottom of the rolling shaft is used to abut against the tape.

4. Pad printing apparatus according to claim 3, wherein: The rolling shaft is arranged along the width direction of the tape.

5. The pad printing apparatus of claim 3, wherein: The outer wall of the rolling shaft is provided with a groove.

6. The pad printing apparatus of claim 2, wherein: The motor is positioned along the width of the conveyor belt.

7. The pad printing apparatus of claim 3, wherein: The bottom surface of the rolling shaft is spaced apart from the support.

8. Pad printing apparatus according to claim 7, characterised in that: The bracket is provided with a support member, which is arranged along the width direction of the tape. The top surface of the support member is used to support the bottom surface of the tape. There are multiple support members, which are spaced apart along the length direction of the tape.

9. Pad printing apparatus according to claim 8, wherein: The support member is elongated.

10. The pad printing apparatus of claim 2, wherein: The bracket includes a base and a support plate, the support plate being slidably connected to the support plate, and the cleaning mechanism being mounted on the support plate.

Images