Pad printing apparatus

Abstract

The utility model discloses a pad printing equipment relates to pad printing technical field, wherein, pad printing equipment frame and locate the component on the frame, and the locating component includes a plurality of support parts and a plurality of compression parts, a plurality of support parts are located on the frame, each support part is used to support the product to be silk screened, and the plane position of each support part on the frame is adjustable, and each compression part can be moved along the up-down direction relative to the frame, and is used to hold down the product to be silk screened, the plane position of each compression part on the frame is adjustable, and a plurality of support parts and a plurality of compression parts can form different locating combinations, and are used to limit the product to be silk screened of different sizes, in the utility model, not only can realize the fixation of various specifications middle frame structure, and integrated multiple functions, can effectively promote the compatibility and production efficiency of whole device.

Description

Technical Field

[0001] This utility model relates to the field of pad printing technology, and in particular to a pad printing device. Background Technology

[0002] Pad printing machines were introduced to my country in the 1980s. Due to their ability to print on small areas and uneven surfaces, they offer significant advantages, thus compensating for the shortcomings of screen printing, and have therefore experienced rapid development in recent years. In the production of the mid-frame structure for televisions, computer monitors, and other products, screen printing is required on the mid-frame structure. Traditional pad printing equipment has poor compatibility because display structures come in many sizes and specifications. When changing production specifications, it is necessary to change the corresponding fixing structure to support and fix the mid-frame structure. This method is not only costly but also inconvenient to operate, hindering production efficiency. Utility Model Content

[0003] The main purpose of this invention is to propose a pad printing device that addresses the problems of poor compatibility in traditional pad printing devices. When changing the production specifications of the middle frame, it is necessary to replace the corresponding fixing structure to support and fix the middle frame structure. This method not only has high production costs but is also inconvenient to operate and is not conducive to improving production efficiency.

[0004] To achieve the above objectives, the present invention provides a pad printing device, comprising a frame and a positioning assembly disposed on the frame, the positioning assembly comprising: Multiple support sections are disposed on the frame, each support section supporting the product to be screen-printed, and the planar position of each support section on the frame is adjustable; and... Multiple clamping parts, each of which is movable relative to the frame in the vertical direction to press down the product to be screen printed, and the planar position of each of the clamping parts on the frame is adjustable; The plurality of support portions and the plurality of clamping portions can form different positioning combinations to limit products of different sizes to be screen printed. In the different positioning combinations, the planar arrangement positions and / or numbers of the plurality of support portions are different, and / or the planar arrangement positions and / or numbers of the plurality of clamping portions are different.

[0005] In one embodiment, the rack includes: Frame main body; A first mounting bracket is disposed on the main body of the bracket and extends along a first horizontal direction; and, At least two second mounting brackets, both of which extend along a second horizontal direction, and at least one of the second mounting brackets is movable on the first mounting bracket along the first horizontal direction; The plurality of said support portions are disposed on at least two second mounting brackets and are slidably mounted on the corresponding second mounting brackets along a second horizontal direction, and the plurality of said clamping portions are disposed on at least two second mounting brackets and are slidably mounted on the corresponding second mounting brackets along a second horizontal direction.

[0006] In one embodiment, each of the support portions has a support surface formed thereon, the support surface being used to support the product to be screen printed; The positioning component also includes: Mounting plate portion, the mounting plate portion being slidably mounted on the frame along a second horizontal direction; and... A support plate portion is disposed above the mounting plate portion, and the support portion includes the support plate portion; The vertical distance between the corresponding ends of the support plate and the mounting plate can be adjusted to adjust the levelness of the support surface.

[0007] In one embodiment, a supporting spring is provided between the mounting plate portion and the support plate portion; a through hole is provided on the mounting plate portion; a countersunk hole is provided on the support plate portion; and an adjustment structure is provided at each corresponding end of the support plate portion and the mounting plate portion. Each adjustment structure includes: The mounting shaft has a through end and a limiting end that are arranged opposite to each other. The through end passes through the through hole, and a threaded connection hole is provided on the end face of the through end. A connecting spring is sleeved on the mounting shaft and positioned between the limiting end and the mounting plate portion; and, An adjusting rod having a threaded section that passes through the countersunk hole and is connected to the threaded connection hole, the adjusting rod being rotatable along an axis extending in the vertical direction.

[0008] In one embodiment, the positioning assembly further includes a first clamping cylinder, the first clamping cylinder comprising a first cylinder body and a first movable part, the first movable part having a vertical stroke relative to the first cylinder body, wherein: The first cylinder body is connected to the frame and is also connected to a gripper portion; the clamping portion includes the gripper portion; and / or, The first cylinder is connected to the corresponding support portion.

[0009] In one embodiment, the positioning assembly further includes a rotary clamping cylinder, which includes a second cylinder body and a second movable part. The second movable part has a linear stroke in the vertical direction relative to the second cylinder body and a rotational stroke along an axis extending in the vertical direction. The clamping part includes the second movable part.

[0010] In one embodiment, the pad printing apparatus further includes a printing assembly, the printing assembly comprising: A printhead assembly, including a printhead and a drying section; and, A drive device is mounted on the frame, and the output end of the drive device is connected to the printing head and the drying section to drive the printing head and the drying section to move.

[0011] In one embodiment, the output end of the drive device is provided with a mounting base, and the mounting base is provided with a fixing hole; The drying section includes: The mounting plate is rotatably mounted on the side wall of the mounting base, and a retaining part is provided on one side of the mounting plate in the width direction. An arc-shaped groove corresponding to the fixing hole is formed on the mounting plate with its rotation position as the center. A hot melt gun is mounted on the holding part; and, A fixing bolt is installed inside the arc-shaped groove, and one end of the bolt engages with the fixing hole.

[0012] In one embodiment, the pad printing apparatus further includes a cleaning component, the cleaning component comprising: A base is disposed on the frame, and a cleaning area is formed on the base; Cleaning belt; and, The winding structure includes an installation part and a winding part, wherein the cleaning tape is installed on the installation part and one end of the cleaning tape is connected to the winding part, and the cleaning tape portion is located on the cleaning area.

[0013] In one embodiment, the pad printing device further includes an ink cartridge assembly, the ink cartridge assembly comprising: The ink reservoir is located at the upward-facing end of the cartridge. A pad printing plate is disposed below the ink cartridge, and the steel mesh surface on the pad printing plate is in contact with the lower end of the ink reservoir; and, A driving element is mounted on the housing and connected to the pad printing plate to drive the pad printing plate to move on the lower end of the ink reservoir.

[0014] In this invention, the combined action of the second mounting bracket, multiple support parts, and the pressing part enables effective installation and fixation of various sizes and specifications of the middle frame structure, greatly improving the production compatibility of the entire pad printing equipment, thereby promoting the saving of production materials and improving production convenience. Furthermore, the pad printing equipment disclosed in this invention is a multi-functional integrated device that integrates drying, cleaning, inking, and pad printing on the same machine. In actual production, it can achieve continuous production operations, greatly improving production efficiency and convenience. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 A schematic diagram of the overall structure of an embodiment of the pad printing device provided by this utility model; Figure 2 for Figure 1 A schematic diagram of the installation structure of the two second mounting brackets; Figure 3 for Figure 2 A schematic diagram of the positioning component; Figure 4 for Figure 1 A schematic diagram of the structure of the printing component; Figure 5 for Figure 4 A schematic diagram of the specific structure of the printhead assembly; Figure 6 for Figure 1 A schematic diagram of the structure of the cleaning component; Figure 7 for Figure 1 A schematic diagram of the middle ink cartridge assembly.

[0017] Explanation of icon numbers: 100. Pad printing equipment; 1. Frame; 11. Frame body; 12. First mounting frame; 121. Guide rail; 122. Slider; 13. Second mounting frame; 2. Positioning assembly; 21. Mounting plate; 211. Through hole; 22. Support plate; 221. Connecting countersunk hole; 23. Support spring; 24. Mounting shaft; 241. Threaded connection hole; 25. Connecting spring; 26. Adjusting rod; 27. First clamping cylinder; 28. Rotary clamping cylinder; 29. ​​Gripper; 3. Printing assembly; 31. Printing head assembly; 3 11. Print head; 312. Drying section; 3121. Mounting plate; 3121a. Holding section; 3121b. Arc groove; 3122. Hot melt gun; 3123. Fixing bolt; 32. Drive unit; 4. Cleaning assembly; 41. Base; 43. Rewinding structure; 431. Mounting section; 432. Rewinding section; 4321. Motor components; 4322. Rewinding roller; 433. Guide shaft; 434. Tensioner; 5. Ink cartridge assembly; 51. Cartridge body; 511. Ink reservoir; 52. Pad printing plate; 53. Drive element.

[0018] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0021] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0022] Pad printing machines were introduced to my country in the 1980s. Due to their ability to print on small areas and uneven surfaces, they offer significant advantages, thus compensating for the shortcomings of screen printing, and have therefore experienced rapid development in recent years. In the production of the mid-frame structure for televisions, computer monitors, and other products, screen printing is required on the mid-frame structure. Traditional pad printing equipment has poor compatibility because display structures come in many sizes and specifications. When changing production specifications, it is necessary to change the corresponding fixing structure to support and fix the mid-frame structure. This method is not only costly but also inconvenient to operate, hindering production efficiency.

[0023] This utility model proposes a pad printing device 100 to solve the above problems.

[0024] Please see Figures 1 to 7In one embodiment of this utility model, the pad printing equipment 100 has very strong compatibility. In actual use, it can screen print on the frame structure of televisions of various sizes, greatly reducing production costs and significantly improving production convenience. Specifically, in this embodiment, the pad printing equipment 100 includes a frame 1 and a positioning component 2 disposed on the frame 1. The positioning component 2 includes multiple support parts and multiple pressing parts. The multiple support parts are all disposed on the frame 1. Each support part is used to support the product to be screen printed. The planar position of each support part on the frame 1 is adjustable. Each pressing part can move in the vertical direction relative to the frame 1 to press the product to be screen printed downward. The planar position of each pressing part on the frame 1 is adjustable. The multiple support parts and the multiple pressing parts can form different positioning combinations to limit products to be screen printed of different sizes. In different positioning combinations, the planar setting position and / or number of the multiple support parts are different, and / or the planar setting position and / or number of the multiple pressing parts are different.

[0025] In the above embodiments, multiple support parts and multiple pressing parts are provided to simultaneously fix the middle frame structure, forming various positioning combinations within the plane of the frame 1 for fixing middle frame structures of different specifications. For example, when the specifications of the middle frame structure to be used for screen printing production increase, a certain number of support parts and pressing parts can be added to the plane of the frame 1 to adapt to the increased size of the middle frame structure, achieving a better fixing effect. Fixing different specifications of middle frame structures in this way changes the traditional production process, where changing the specifications of the production materials requires replacing the corresponding fixing structure. It allows for fixing different types of middle frame structures through the simplest operation. Furthermore, it eliminates the need to prepare multiple fixing carriers for different middle frame types, saving production costs to a certain extent and further improving convenience in the actual production process.

[0026] To allow the positional adjustments of the multiple support portions and multiple pressing portions to correspond to the square structure of the middle frame, a mounting frame structure along a first horizontal direction and a second horizontal direction is formed in the frame 1. Specifically, the frame includes a frame body 11, a first mounting frame 12, and at least two second mounting frames 13. The first mounting frame 12 is disposed on the frame body 11 and extends along the first horizontal direction; both second mounting frames 13 extend along the second horizontal direction, and at least one of the second mounting frames 13 is movably disposed on the first mounting frame 12 along the first horizontal direction. Multiple support portions are disposed on at least two second mounting frames 13 and are slidably mounted on their respective second mounting frames 13 along the second horizontal direction. Multiple pressing portions are disposed on at least two second mounting frames 13 and are slidably mounted on their respective second mounting frames 13 along the second horizontal direction.

[0027] In the above embodiments, the first mounting bracket 12 has a certain extension span in the first horizontal direction, and at least one of the two second mounting brackets 13 can slide and adjust along the second direction on the first mounting bracket 12, thereby enabling the two mounting brackets to support various sizes of middle frame structures. During screen printing, if the width of the middle frame structure is small, the distance between the two second mounting brackets 13 can be adjusted to be relatively small, allowing the two second mounting brackets 13 to support the two sides of the middle frame structure along its length. If the middle frame structure to be manufactured is larger, the distance between the two second mounting brackets 13 can be adjusted to be relatively large, supporting the two long sides of the middle frame structure. It is conceivable that if only one side of the middle frame structure is fixed, due to the thinness of the frame, if the other side is not supported and fixed when the size is large, one end of the middle frame structure may deform during screen printing. The above structure effectively avoids this problem. Furthermore, to enhance the fixation effect on the middle frame structure, multiple support parts are provided to support and level various positions of the middle frame structure, ensuring that all positions of the middle frame structure are on the same horizontal plane. When the middle frame structure is fixed by multiple clamping parts, it can be effectively secured to the current plane. It should be noted that the multiple support parts and multiple clamping parts can be adjusted along the second horizontal direction. According to the actual specifications of the middle frame structure, the support parts and clamping parts can be evenly distributed at various positions on the middle frame structure, thereby achieving a stable fixation effect for middle frame structures of various specifications. This also helps improve screen printing quality to a certain extent and ensures the production quality of the middle frame structure.

[0028] Specifically, a guide rail 121 is provided on the upper surface of the first mounting bracket 12, and a slider 122 is provided on the guide rail 121. At least one of the second mounting brackets 13 is mounted on the slider 122, thereby realizing that the distance between the two second mounting brackets 13 can be adjusted in the second horizontal direction.

[0029] In this embodiment, the multiple support parts adopt a floating support structure. Each support part has a support surface for supporting the product to be screen-printed. The positioning component 2 also includes a mounting plate 21 and a support plate 22. The mounting plate 21 is slidably mounted on the frame 1 along a second horizontal direction, and the support plate 22 is located above the mounting plate 21. The support part includes the support plate 22. The vertical spacing between the corresponding ends of the support plate 22 and the mounting plate 21 is adjustable to adjust the levelness of the support surface. The mounting plate 21 and the support plate 22 are stacked vertically, and the support plate 22 can adjust its vertical support height on the mounting plate 21. In actual production, if the height of one position of the middle frame structure is too high or too low, the height of the support plate 22 at the corresponding position can be adjusted to adjust the entire middle frame structure to a horizontal state as much as possible.

[0030] The mounting plate portion 21 is adjustable along the second horizontal direction from the second mounting frame 13. It is conceivable that a corresponding guide mounting structure should be provided between the second mounting frame 13 and the mounting plate portion 21. Specifically, a recessed groove structure extending along the second horizontal direction is provided on the upper end surface of the second mounting frame 13, and a mounting protrusion protruding outwards is provided on the lower end surface of the mounting plate portion 21. The mounting protrusion is slidably mounted inside the recessed groove structure, allowing the mounting plate portion 21 to move along the extension direction of the recessed groove structure. To prevent the mounting protrusion from detaching from the recessed groove structure, the bottom of the recessed groove structure can be adaptively set to be relatively wide, and the distal end of the mounting protrusion can be set to correspond to the shape of the bottom of the recessed groove structure, thereby forming a backstop structure at the distal end of the mounting protrusion. This further improves the stability of the adjustment process during the adjustment of the mounting plate portion 21.

[0031] The support plate portion 22 is disposed above the mounting plate portion 21. When the support plate portion 22 levels the middle frame structure, a corresponding adjustment structure is formed between the support plate portion 22 and the mounting plate portion 21. Specifically, in one embodiment of the present invention, a supporting spring 23 is provided between the mounting plate portion 21 and the support plate portion 22, a through hole 211 is provided on the mounting plate portion 21, a connecting countersunk hole 221 is provided on the support plate portion 22, and an adjustment structure is provided at the corresponding ends of the support plate portion 22 and the mounting plate portion 21. Each adjustment structure includes a mounting shaft 24, a connecting spring 25, and an adjustment rod 26. The mounting shaft 24 has a through end and a limiting end arranged opposite to each other. The through end passes through the through hole 211 and has a threaded connection hole 241 on its end face. The connecting spring 25 is sleeved on the mounting shaft 24 and is located between the limiting end and the mounting plate 21. The adjusting rod 26 has a threaded section that passes through the countersunk hole 221 and is connected to the threaded connection hole 241. The adjusting rod 26 is rotatable along an axis extending in the vertical direction.

[0032] When adjusting the support height of the support plate 22, the adjusting rod 26 rotates along its vertical axis. At this time, the downward-facing end of the adjusting rod 26 rotates within the threaded connection hole 241 on one end of the mounting shaft 24. The two threaded segments move relative to each other, causing a vertical relative movement between the adjusting rod 26 and the mounting shaft 24. This causes a corresponding stress change in the connecting spring 25 between the limiting end and the mounting plate 21, thereby adjusting the vertical height of the support plate 22. For example, when the adjusting rod 26 drives the through-hole 211 upwards, indicating a tendency for the support plate 22 and the mounting plate 21 to move closer together, the stress in the connecting spring 25 increases, causing the support plate 22 to move downwards. Conversely, the support plate 22 can be adjusted upwards. Therefore, the support plate 22 at corresponding positions can be adjusted according to actual conditions, thereby bringing all parts of the entire middle frame structure to the same horizontal plane.

[0033] In another embodiment of this utility model, a vertical guide structure can be provided between the mounting plate portion 21 and the support plate portion 22 to ensure that the support plate portion 22 can move vertically along the mounting plate portion 21. In this case, only an ejector structure, such as an externally threaded rod, needs to be provided on the mounting plate portion 21. One end of the externally threaded rod abuts against the lower end face of the support plate portion 22. By selectively installing the externally threaded rod, the support plate portion 22 is pushed to move vertically, thereby completing the height adjustment of the middle frame structure. The adjustment structure disclosed in this solution is a vertical adjustment structure. There are many embodiments of vertical adjustment structures, not limited to the two structures mentioned above. In actual implementation, the appropriate structure can be selected based on the actual production materials.

[0034] In one embodiment of this utility model, the positioning component 2 further includes a first clamping cylinder 27, which includes a first cylinder body and a first movable part. The first movable part has a vertical stroke relative to the first cylinder body. The first cylinder body is connected to the frame 1 and is connected to a gripper part. The clamping part includes the gripper part 29. After the middle frame structure is adjusted to a horizontal state by the multiple support parts, the first cylinder body starts to work and drives the gripper part 29 to press down on the middle frame structure through the first movable part, thereby pressing and fixing the middle frame structure to the upper end surface of the support plate 22.

[0035] In another embodiment of this utility model, the first cylinder part can also be disposed on the support plate part 22. When the support plate part 22 is adjusted for support height, the first cylinder part moves accordingly, and its fixed position can be adjusted as the position of the mounting plate 3121 is adjusted. This further improves the fixing flexibility of the middle frame structure.

[0036] In another embodiment of this utility model, the positioning component 2 further includes a rotary clamping cylinder 28, which includes a second cylinder body and a second movable part. The second movable part has a linear travel in the vertical direction relative to the second cylinder body and a rotational travel along an axis extending in the vertical direction. The clamping part includes the second movable part. In this embodiment, when the middle frame structure is leveled, the second cylinder body drives the second movable part to move to the upper side of the middle frame structure, thus not affecting the placement and adjustment of the middle frame structure. After the adjustment is completed, the second cylinder body drives the second movable part to the upper position of the middle frame structure and drives the second movable part to move downward, thereby pressing and fixing the middle frame structure onto the support plate 22.

[0037] In one embodiment of the present invention, the pad printing device 100 further includes a printing assembly 3, which includes a printing head 311 assembly 31 and a driving device 32. The printing head 311 assembly 31 includes a printing head 311 and a drying section 312. The driving device 32 is mounted on the frame 1, and the output end of the driving device 32 is connected to the printing head 311 and the drying section 312 to drive the printing head 311 and the drying section 312 to move.

[0038] In the aforementioned embodiment, the driving device 32 drives the printing head 311 to move, thereby realizing the pad printing process. Unlike conventional pad printing devices, the printing head 311 assembly 31 in this solution is also equipped with a drying section 312. After screen printing in the middle frame structure, the printing head 311 can immediately dry the printed pattern at its current position via the drying section 312, effectively improving the timeliness of drying. Compared to the traditional method of placing the product in a drying oven for drying, this significantly improves production efficiency and convenience. It is conceivable that the driving device 32 can adjust the position of the printing head 311, and the driving device 32 can be configured as a combination of a robotic arm or a linear drive structure.

[0039] Specifically, a mounting base is provided on the output end of the drive device 32, and a fixing hole is provided on the mounting base. The drying part 312 includes a mounting plate 3121, a hot melt gun 3122, and a fixing bolt 3123. The mounting plate 3121 is rotatably mounted on the side wall of the mounting base, and a retaining part 3121a is provided on one side of the mounting plate 3121 in the width direction. An arc-shaped groove 3121b corresponding to the fixing hole is formed on the mounting plate 3121 with its rotation position as the center. The hot melt gun 3122 is mounted on the retaining part 3121a, and the fixing bolt 3123 is mounted inside the arc-shaped groove 3121b, with one end of it cooperating with the fixing hole.

[0040] In terms of specific structure, both the printing head 311 and the hot melt gun 3122 are mounted on the mounting base. Specifically, the printing head 311 is mounted on the lower end face of the mounting base, and the hot melt gun 3122 is located on the vertical sidewall of the mounting base. The output angle of the hot melt gun 3122 in the vertical plane is adjustable. During adjustment, the fixing bolt 3123 is turned to reduce the force between the fixing bolt 3123 and the mounting plate 3121, thus releasing the fixing constraint on the mounting plate 3121. Adjusting the rotation of the mounting plate 3121 on the mounting base changes the angle between the output end of the hot melt gun 3122 and the vertical direction. When the current angle is suitable, the fixing bolt 3123 is turned in the opposite direction to ensure full contact and downward pressure with the mounting plate 3121, thereby fixing the output angle of the hot melt gun 3122 in the current state.

[0041] In another embodiment of this utility model, the adjustment structure of the hot melt gun 3122 can be set as an automatic adjustment structure. For example, a motor structure can be installed on the mounting base, and the hot melt gun 3122 can be installed on the output end of the motor structure. When actually adjusting, the hot melt gun 3122 is driven to rotate by the motor structure, thereby realizing the automatic adjustment of its output tilt angle.

[0042] It is conceivable that the adjustment of the hot melt gun 3122 is a rotary adjustment. Many rotary drive structures exist, such as cylinders and connecting rod structures, which can also achieve the aforementioned rotary adjustment effect. In actual design, the appropriate structure can be selected based on the specific circumstances.

[0043] Considering that the ink at the tip of the printing head 311 needs to be cleaned regularly during use to maximize the clarity and accuracy of pad printing, traditional manual cleaning methods are time-consuming, labor-intensive, and prone to instability. Therefore, in one embodiment of this utility model, the pad printing device 100 further includes a cleaning component 4. The cleaning component 4 includes a base 41, a cleaning belt (not shown in the figure), and a winding structure 43. The base 41 is mounted on the frame 1 and has a cleaning area. The winding structure 43 includes a mounting part 431 and a winding part 432. The cleaning belt is mounted on the mounting part 431, with one end connected to the winding part 432. The cleaning belt is partially located on the cleaning area. When the print head 311 is actually cleaned, the drive device 32 drives the print head 311 to the cleaning area, so that the print head 311 can contact a part of the cleaning tape at the location of the cleaning area. At the same time, the winding part 432 drives one end of the cleaning tape to wind up, thereby cleaning the print head 311 through the movement of the cleaning tape.

[0044] The winding section 432 includes a motor 4321 and a winding roller 4322. One end of the cleaning belt is fixed to the winding roller 4322. During operation, the motor 4321 drives the winding roller 4322 to rotate, thereby cleaning the print head 311. Two guide shafts 433 are also provided on the base 41 at the two ends corresponding to the cleaning area. The cleaning belt is wound around the two guide shafts 433, keeping it relatively flat above the cleaning area. A tensioning wheel 434 is provided along the winding path of the cleaning belt. When the print head 311 is pressed down, it causes the cleaning belt above the cleaning area to deform downwards. During this process, the tensioning wheel 434 releases some stress, and the deformation of the cleaning belt increases the contact area between the cleaning belt and the print head 311, further improving the cleaning effect on the print head 311.

[0045] In one embodiment of this utility model, the pad printing device 100 further includes an ink cartridge assembly 5. The ink cartridge assembly 5 includes a cartridge body 51, a pad printing plate 52, and a driving element 53. An ink reservoir 511 is provided at the upward-facing end of the cartridge body 51. The pad printing plate 52 is located below the ink cartridge, and the steel mesh surface on the pad printing plate 52 contacts the lower end of the ink reservoir 511. The driving element 53 is mounted on the cartridge body 51 and connected to the pad printing plate 52 to drive the pad printing plate 52 to move on the lower end of the ink reservoir 511. In this embodiment of the utility model, when the driving element 53 drives the pad printing plate 52 to move on the lower end of the ink reservoir 511, the ink in the ink reservoir 511 can be applied to the pattern on the structure of the pad printing plate 52. When the printing head 311 presses down on the pad printing plate 52, it can attach ink of the corresponding shape on the pad printing plate 52 to the printing head, thereby realizing the pad printing operation of the printing head 311.

[0046] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A pad printing device, characterized in that, Includes a frame and a positioning assembly disposed on the frame, the positioning assembly comprising: Multiple support sections are disposed on the frame, each support section supporting the product to be screen-printed, and the planar position of each support section on the frame is adjustable; and... Multiple clamping parts, each of which is movable relative to the frame in the vertical direction to press down the product to be screen printed, and the planar position of each of the clamping parts on the frame is adjustable; The plurality of support portions and the plurality of clamping portions can form different positioning combinations to limit products of different sizes to be screen printed. In the different positioning combinations, the planar arrangement positions and / or numbers of the plurality of support portions are different, and / or the planar arrangement positions and / or numbers of the plurality of clamping portions are different.

2. The pad printing equipment as described in claim 1, characterized in that, The rack includes: Frame main body; A first mounting bracket is disposed on the main body of the bracket and extends along a first horizontal direction; and, At least two second mounting brackets, both of which extend along a second horizontal direction, and at least one of the second mounting brackets is movable on the first mounting bracket along the first horizontal direction; The plurality of said support portions are disposed on at least two second mounting brackets and are slidably mounted on the corresponding second mounting brackets along a second horizontal direction, and the plurality of said clamping portions are disposed on at least two second mounting brackets and are slidably mounted on the corresponding second mounting brackets along a second horizontal direction.

3. The pad printing equipment as described in claim 1, characterized in that, Each of the support portions has a support surface formed thereon, the support surface being used to support the product to be screen printed; The positioning component also includes: Mounting plate portion, the mounting plate portion being slidably mounted on the frame along a second horizontal direction; and... A support plate portion is disposed above the mounting plate portion, and the support portion includes the support plate portion; The vertical distance between the corresponding ends of the support plate and the mounting plate can be adjusted to adjust the levelness of the support surface.

4. The pad printing equipment as described in claim 3, characterized in that, A supporting spring is provided between the mounting plate and the support plate. A through hole is provided on the mounting plate, and a countersunk hole is provided on the support plate. Adjustment structures are provided at corresponding ends of the support plate and the mounting plate, each adjustment structure comprising: The mounting shaft has a through end and a limiting end that are arranged opposite to each other. The through end passes through the through hole, and a threaded connection hole is provided on the end face of the through end. A connecting spring is sleeved on the mounting shaft and positioned between the limiting end and the mounting plate portion; and, An adjusting rod having a threaded section that passes through the countersunk hole and is connected to the threaded connection hole, the adjusting rod being rotatable along an axis extending in the vertical direction.

5. The pad printing apparatus as described in claim 1, characterized in that, The positioning component further includes a first clamping cylinder, which comprises a first cylinder body and a first movable part. The first movable part has a vertical stroke relative to the first cylinder body, wherein: The first cylinder body is connected to the frame and is also connected to a gripper portion; the clamping portion includes the gripper portion; and / or, The first cylinder is connected to the corresponding support portion.

6. The pad printing apparatus as described in claim 1, characterized in that, The positioning assembly further includes a rotary clamping cylinder, which includes a second cylinder body and a second movable part. The second movable part has a linear stroke in the vertical direction relative to the second cylinder body and a rotational stroke along an axis extending in the vertical direction. The clamping part includes the second movable part.

7. The pad printing apparatus as described in claim 1, characterized in that, The pad printing equipment further includes a printing component, which includes: A printhead assembly, including a printhead and a drying section; and, A drive device is mounted on the frame, and the output end of the drive device is connected to the printing head and the drying section to drive the printing head and the drying section to move.

8. The pad printing apparatus as described in claim 7, characterized in that, The output end of the drive device is provided with a mounting base, and the mounting base is provided with a fixing hole; The drying section includes: The mounting plate is rotatably mounted on the side wall of the mounting base, and a retaining part is provided on one side of the mounting plate in the width direction. An arc-shaped groove corresponding to the fixing hole is formed on the mounting plate with its rotation position as the center. A hot melt gun is mounted on the holding part; and, A fixing bolt is installed inside the arc-shaped groove, and one end of the bolt engages with the fixing hole.

9. The pad printing apparatus as described in claim 1, characterized in that, The pad printing device further includes a cleaning component, which comprises: A base is disposed on the frame, and a cleaning area is formed on the base; Cleaning belt; and, The winding structure includes an installation part and a winding part, wherein the cleaning tape is installed on the installation part and one end of the cleaning tape is connected to the winding part, and the cleaning tape portion is located on the cleaning area.

10. The pad printing apparatus as described in claim 1, characterized in that, The pad printing device further includes an ink cartridge assembly, the ink cartridge assembly comprising: The ink reservoir is located at the upward-facing end of the cartridge. A pad printing plate is disposed below the ink cartridge, and the steel mesh surface on the pad printing plate is in contact with the lower end of the ink reservoir; and, A driving element is mounted on the housing and connected to the pad printing plate to drive the pad printing plate to move on the lower end of the ink reservoir.

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