Transfer printing device

Abstract

The utility model relates to the technical field of transfer printing, in particular to a transfer printing device. A pad printing device comprises an ink supply mechanism, a pad printing mechanism and a driving mechanism, and the pad printing mechanism comprises a pad printing piece which comprises a body and a plurality of pad printing heads; a plurality of open grooves matched with the workpieces are formed in the transfer printing seat; the positioning assembly comprises a first moving part, a second moving part and a displacement driving part, and the displacement driving part is connected with the first moving part and the second moving part so as to drive the first moving part and the second moving part to be close to each other or away from each other. The utility model provides a transfer printing device which is high in efficiency and adapts to various workpiece specifications.

Description

Technical Field

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

[0002] During syringe manufacturing, the graduation lines need to be transferred to the outer surface of the syringe using a pad printing device. In existing technologies, pad printing devices typically have only one printing head, allowing only one workpiece to be printed at a time, resulting in low efficiency. Secondly, the pad printing unit for positioning the workpiece is usually only suitable for syringes of one length. If other lengths of syringes need to be processed, a suitable pad printing unit must be replaced, leading to excessive requirements for different pad printing unit sizes and high equipment costs. Utility Model Content

[0003] Therefore, it is necessary to provide a pad printing device that is highly efficient and adaptable to various workpiece specifications.

[0004] A pad printing apparatus includes an ink supply mechanism, a pad printing mechanism, and a driving mechanism; the pad printing mechanism includes:

[0005] A pad printing assembly, comprising a body and multiple pad printing heads;

[0006] A pad printing station, wherein the pad printing station is provided with multiple slots that mate with the workpiece;

[0007] The positioning component includes a first moving part, a second moving part, and a displacement driving part. Along the length direction of the slot, the first moving part and the second moving part are respectively disposed on both sides of the printing pad and at least partially protrude from the upper surface of the printing pad. The displacement driving part is connected to the first moving part and the second moving part respectively to drive the first moving part and the second moving part to move closer to or further away from each other.

[0008] In one embodiment, the displacement drive includes a first slider and a second slider that move synchronously and in opposite directions along the length of the slot, the first slider being connected to the first moving member and the second slider being connected to the second moving member.

[0009] In one embodiment, along a first direction, a plurality of the pad printing heads are spaced apart on the body; along the first direction, a plurality of the slots are evenly spaced on the pad printing stand; the pad printing stand includes a support, a base, and a driving component, the slots and the positioning component being disposed on the base; along a second direction, the base is movably disposed on the support; the driving component is disposed on the support and connected to the base to drive the base to move on the support.

[0010] In one embodiment, the driving components are configured as at least two sets, with the two sets of driving components disposed on both sides of the seat along a first direction, and the two sets of driving components are symmetrically arranged.

[0011] In one embodiment, the driving component includes a slide rail and a movable member movably disposed on the slide rail, the seat being connected to the movable member; the slide rail is disposed on the bracket and extends along the second direction; the second direction is parallel to the length direction of the slot.

[0012] In one embodiment, the seat is disposed between the two sets of drive components, and a connecting portion is provided on the side of the seat near the movable member. The connecting portion extends from the seat to above the movable member and is connected to the movable member.

[0013] In one embodiment, the first movable member is provided with a plurality of first positioning holes, which are distributed at intervals along a first direction on the first movable member, and the positions of the first positioning holes correspond to the slot positions; the second movable member is provided with a plurality of second positioning holes, which are distributed at intervals along a first direction on the second movable member, and the positions of the second positioning holes correspond to the slot positions.

[0014] In one embodiment, the upper part of the first positioning hole is open along the height direction, and the lower part of the second positioning hole is open.

[0015] In one embodiment, the seat body has a groove on the side near the first moving member, the groove extends along the first direction, and the ends of the plurality of slots near the groove are respectively connected to the groove.

[0016] In one embodiment, the displacement drive is an electric gripper; a receiving groove that mates with the displacement drive is provided on the base, and the groove is located on the top surface of the base along the height direction, with the receiving groove located below the groove.

[0017] Compared with existing technologies, the pad printing device features multiple slots on the pad printing base, accommodating multiple workpieces. Multiple printing heads are simultaneously configured, allowing for simultaneous printing of multiple workpieces with a single downward movement of the printing head, resulting in highly efficient and fast printing operations. Furthermore, the inclusion of a first and second moving component allows for close clamping of the workpieces within the slots, ensuring stable printing position and improving accuracy. Since the first and second moving components are located on opposite sides of the printing base, they can clamp and position workpieces of varying lengths, adapting to different workpiece lengths without requiring replacement of the printing base, thus reducing equipment investment costs. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the pad printing device provided in this application.

[0020] Figure 2 A schematic diagram of the structure of the pad printing part provided in this application.

[0021] Figure 3 A schematic diagram of the structure of the pad printing station provided in this application.

[0022] Figure 4 for Figure 3 A schematic diagram of the central seat.

[0023] Figure 5 for Figure 3 Top view.

[0024] Figure 6 This is a schematic diagram illustrating the interaction between the pad printing unit provided in this application and workpieces of different lengths.

[0025] Reference numerals: 100, Ink supply mechanism; 200, Pad printing mechanism; 1, Pad printing component; 11, Body; 12, Pad printing head; 2, Pad printing base; 21, Slot; 22, Support; 23, Base; 231, Connecting part; 232, Inserted groove; 233, Receiving groove; 24, Driving component; 241, Slide rail; 242, Moving part; 3, Positioning assembly; 31, First moving part; 311, First positioning hole; 32, Second moving part; 321, Second positioning hole; 33, Displacement driving component; 331, First slider; 332, Second slider; 300, Driving mechanism. Detailed Implementation

[0026] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0027] It should be noted that when a component is referred to as being "located" on another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component. The terms "height," "length," "upper," "lower," "side," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementations. "Above" a second feature may mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0028] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0029] Please see Figures 1 to 6 This application provides a pad printing apparatus, including an ink supply mechanism 100, a pad printing mechanism 200, and a driving mechanism 300. Specifically, the pad printing mechanism 200 includes a pad printing component 1, a pad printing base 2, and a positioning assembly 3. The pad printing component 1 includes a body 11 and a plurality of pad printing heads 12. The pad printing base 2 is provided with a plurality of slots 21 that mate with the workpiece. The positioning assembly 3 includes a first moving component 31, a second moving component 32, and a displacement driving component 33. Along the length direction of the slots 21, the first moving component 31 and the second moving component 32 are respectively disposed on both sides of the pad printing base 2, and at least partially protrude from the upper surface of the pad printing base 2. The displacement driving component 33 is connected to the first moving component 31 and the second moving component 32 respectively, so as to drive the first moving component 31 and the second moving component 32 to move closer to or further away from each other.

[0030] Understandably, the workpiece to be pad-printed is placed in the slot 21. Then, the first moving part 31 and the second moving part 32 move closer to each other to clamp the workpiece, limiting its position and preventing it from moving. Next, the drive mechanism 300 drives the pad-printing part 1 to move to the ink supply mechanism 100 to pick up ink. Then, the drive mechanism 300 drives the pad-printing part 1 to move above the pad-printing base 2, and drives the pad-printing part 1 to move downwards. The pad-printing head 12 then squeezes the workpiece, transferring the ink to the workpiece surface, completing the pad-printing process.

[0031] Because the pad printing base 2 has multiple slots 21, multiple workpieces can be placed on one pad printing base 2 simultaneously. With multiple printing heads 12 simultaneously configured, the printing head 1 can move down once to simultaneously print multiple workpieces, making the printing process efficient and fast. Secondly, the first moving part 31 and the second moving part 32 are provided, which can move closer together to clamp the workpieces within the slots 21, ensuring that the printing position does not shift and improving printing accuracy. Furthermore, since the first moving part 31 and the second moving part 32 are located on opposite sides of the pad printing base 2, they can clamp and position workpieces of different lengths, adapting to various workpiece lengths without needing to replace the pad printing base 2, resulting in low equipment investment costs.

[0032] For example, the pad printing head 12 is made of a flexible material, such as rubber or resin. Preferably, multiple pad printing heads 12 are integrally molded, with an overall wavy shape, which is simple in structure and easy to process.

[0033] For example, the ink supply mechanism 100 is located on the side of the pad printing mechanism 200, and the drive mechanism 300 is connected to the pad printing mechanism 200.

[0034] In one embodiment, the displacement drive member 33 includes a first slider 331 and a second slider 332. The first slider 331 and the second slider 332 are capable of moving synchronously and in opposite directions along the length direction of the slot 21. The first slider 331 is connected to the first moving member 31, and the second slider 332 is connected to the second moving member 32. Thus, the first moving member 31 and the second moving member 32 can move synchronously and in opposite directions along the length direction of the slot 21 under the drive, so that the first moving member 31 and the second moving member 32 move closer or further away from each other to clamp the workpiece.

[0035] Understandably, the first moving part 31 and the second moving part 32 move synchronously, which can center and clamp the workpiece. Compared with unilateral movement or asynchronous movement, the first moving part 31 and the second moving part 32 need to move the shortest distance, with a short displacement stroke, saving time and improving efficiency.

[0036] For example, the displacement drive 33 is an electric gripper, and the first slider 331 and the second slider 332 are the sliders on the electric gripper.

[0037] Furthermore, along the first direction, multiple printing heads 12 are spaced apart on the body 11. Along the first direction, multiple slots 21 are spaced apart on the printing pad 2. Exemplarily, the first direction is the length direction of the body. The spaced distribution of multiple workpieces better facilitates the printing operation. Preferably, the spaced distribution is uniform.

[0038] In one embodiment, the pad printing station 2 includes a support 22, a seat 23, and a driving component 24. A slot 21 and a positioning assembly 3 are disposed on the seat 23. The seat 23 is movably disposed on the support 22 along a second direction. The driving component 24 is disposed on the support 22 and connected to the seat 23 to drive the seat 23 to move on the support 22.

[0039] Understandably, since the base 23 can move relative to the support 22, the base 23 can adjust its position relative to the pad printing part 1. That is, it can move the workpiece fixed in the slot 21 by the positioning component 3 on the base 23 together, thereby realizing the position adjustment between the workpiece to be printed and the pad printing part 1, ensuring that when workpieces of different lengths are processed, the position to be printed can always be completely aligned with the pad printing part 1, making the printing position more accurate.

[0040] Furthermore, the drive component 24 is configured as at least two sets, with the two sets of drive components 24 being respectively disposed on both sides of the base 23 along the first direction, and the two sets of drive components 24 being symmetrically arranged.

[0041] Preferably, the drive components 24 are configured in two sets. By driving the base 23 with two sets of drive components 24, the movement of the base 23 is more stable and the response speed is faster.

[0042] Exemplarily, the drive component 24 includes a slide rail 241 and a movable member 242. The slide rail 241 is mounted on the bracket 22 and extends along a second direction. The movable member 242 is movably mounted on the slide rail 241, and the seat 23 is connected to the movable member 242. When the movable member 242 moves along the slide rail 241, it will drive the seat 23 to move together. Exemplarily, the movable member 242 is a linear cylinder.

[0043] Understandably, the movable part 242 moves along the length of the slide rail 241. The slide rail 241 guides and limits the movable part 242 to prevent it from shifting during movement, thereby ensuring that the movement of the base 23 does not shift and ensuring that the printing position is accurately matched.

[0044] Preferably, the second direction is parallel to the length direction of the slot 21. That is, the moving direction of the base 23 is the length direction of the slot 21, which allows for fine adjustment of the transfer printing position of workpieces of different lengths.

[0045] In one embodiment, the seat 23 is disposed between two sets of drive components 24. A connecting portion 231 is provided on the side of the seat 23 near the movable component 242. The connecting portion 231 extends from the seat 23 to above the movable component 242 and is connected to the movable component 242.

[0046] For example, the connecting part 231 is an inverted L-shaped structure. The vertical side of the connecting part 231 is connected to the base 23, and the horizontal side is placed above the movable part 242 and connected to the movable part 242.

[0047] Understandably, in this manner, the movable part 242 can be used to directly support the seat 23, and there is no need for the seat 23 to contact the bracket 22, which reduces the frictional resistance during the movement of the seat 23, reduces wear, and improves the response speed.

[0048] Furthermore, the first moving member 31 is provided with a plurality of first positioning holes 311. The plurality of first positioning holes 311 are distributed at intervals along the first direction on the first moving member 31, and the positions of the first positioning holes 311 correspond to the positions of the slots 21. The second moving member 32 is provided with a plurality of second positioning holes 321, the plurality of second positioning holes 321 are distributed at intervals along the first direction on the second moving member 32, and the positions of the second positioning holes 321 correspond to the positions of the slots 21.

[0049] Understandably, the head and tail of the workpiece (syringe) to be processed have protrusions respectively. When the first moving member 31 and the second moving member 32 approach each other and clamp the workpiece, the protrusions of the head and tail can be inserted into the first positioning hole 311 and the second positioning hole 321 respectively, so as to avoid damaging the workpiece.

[0050] Preferably, the upper part of the first positioning hole 311 is open along the height direction. The lower part of the second positioning hole 321 is open.

[0051] In one embodiment, the seat 23 has a groove 232 on the side near the first moving member 31. The groove 232 extends along a first direction, and the ends of a plurality of slots 21 near the groove 232 are respectively connected to the groove 232.

[0052] Understandably, the workpiece (cylinder) to be processed has a flange on the side corresponding to the first moving part 31. When the workpiece is placed in the slot 21, it can also be positioned by the flange being inserted into the groove 232. The positioning is accurate, convenient and quick.

[0053] For example, the groove 232 is a strip structure that extends along the first direction, and the upper part of the groove 232 is open to facilitate the insertion of the workpiece.

[0054] For example, the slot 21 is also designed with an opening at the top to facilitate the insertion of the workpiece. Furthermore, the cross-section of the slot 21 is arc-shaped or semi-circular, which is more suitable for the shape of the syringe.

[0055] In one embodiment, a receiving groove 233 is formed on the base 23. Along the height direction, a slot 21 is provided on the top surface of the base 23, and the receiving groove 233 is located below the slot 21. The displacement driving member 33 cooperates with the receiving groove 233, that is, the displacement driving member 33 is placed in the receiving groove 233, making full use of the space of the base 23 and reducing the size of the device. The receiving groove 233 is provided with an opening corresponding to the positions of the first slider 331 and the second slider 332, so as to facilitate the extension of the first slider 331 and the second slider 332.

[0056] Preferably, the first slider 331 and the second slider 332 are L-shaped structures, with one end extending into the receiving groove 233 and connected to the displacement driving member 33, and the other end extending upward to the side of the seat 23 and connected to the first moving member 31 and the second moving member 32.

[0057] For example, both the first moving member 31 and the second moving member 32 are elongated structures with a length equal to or slightly greater than the length of the base 23.

[0058] For example, the ink supply mechanism 100 adopts existing technology, as long as it can provide ink for pad printing 1, and the specific structure will not be described in detail. The driving mechanism 300 adopts existing technology, as long as it can drive the pad printing 1 to move between the ink mechanism and the pad printing base 2 and to move up and down relative to the pad printing base 2, and the specific structure will not be described in detail.

[0059] For example, the connections mentioned above can be made by screwing, welding, etc., and there are no specific limitations. The specific number of the multiple connections mentioned above can be selected according to actual needs, and there are no restrictions here.

[0060] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

Claims

1. A pad printing apparatus, comprising an ink supply mechanism (100), a pad printing mechanism (200), and a drive mechanism (300), characterized in that, The pad printing mechanism (200) includes: The pad printing component (1) includes a body (11) and multiple pad printing heads (12); The pad printing station (2) is provided with a plurality of slots (21) that cooperate with the workpiece. The positioning component (3) includes a first moving part (31), a second moving part (32) and a displacement driving part (33). Along the length direction of the slot (21), the first moving part (31) and the second moving part (32) are respectively disposed on both sides of the printing pad (2) and at least partially protrude from the upper surface of the printing pad (2). The displacement driving part (33) is connected to the first moving part (31) and the second moving part (32) respectively to drive the first moving part (31) and the second moving part (32) to move closer to or further away from each other.

2. The pad printing apparatus according to claim 1, characterized in that, The displacement drive (33) includes a first slider (331) and a second slider (332) that move synchronously and in opposite directions along the length of the slot (21). The first slider (331) is connected to the first moving member (31), and the second slider (332) is connected to the second moving member (32).

3. The pad printing apparatus according to claim 1, characterized in that, Along the first direction, a plurality of the pad printing heads (12) are spaced apart on the body (11); along the first direction, a plurality of the slots (21) are spaced apart on the pad printing seat (2); the pad printing seat (2) includes a support (22), a seat (23) and a driving component (24), the slots (21) and the positioning component (3) are disposed on the seat (23); along the second direction, the seat (23) is movably disposed on the support (22); the driving component (24) is disposed on the support (22) and connected to the seat (23) to drive the seat (23) to move on the support (22).

4. The pad printing apparatus according to claim 3, characterized in that, The driving component (24) is configured as at least two sets, with the two sets of driving components (24) being disposed on both sides of the seat (23) along the first direction, and the two sets of driving components (24) being symmetrically arranged.

5. The pad printing apparatus according to claim 4, characterized in that, The drive component (24) includes a slide rail (241) and a movable part (242) movably disposed on the slide rail (241). The seat (23) is connected to the movable part (242). The slide rail (241) is disposed on the bracket (22) and extends along the second direction. The second direction is parallel to the length direction of the slot (21).

6. The pad printing apparatus according to claim 5, characterized in that, The seat (23) is located between the two sets of driving components (24). The seat (23) has a connecting part (231) on the side near the movable part (242). The connecting part (231) extends from the seat (23) to the top of the movable part (242) and is connected to the movable part (242).

7. The pad printing apparatus according to claim 1, characterized in that, The first moving part (31) is provided with a plurality of first positioning holes (311), which are distributed at intervals along the first direction on the first moving part (31), and the positions of the first positioning holes (311) correspond to the positions of the slots (21); the second moving part (32) is provided with a plurality of second positioning holes (321), which are distributed at intervals along the first direction on the second moving part (32), and the positions of the second positioning holes (321) correspond to the positions of the slots (21).

8. The pad printing apparatus according to claim 7, characterized in that, Along the height direction, the upper part of the first positioning hole (311) is open, and the lower part of the second positioning hole (321) is open.

9. The pad printing apparatus according to claim 3, characterized in that, The seat (23) has a groove (232) on the side near the first moving part (31). The groove (232) extends along the first direction. The ends of the multiple slots (21) near the groove (232) are respectively connected to the groove (232).

10. The pad printing apparatus according to claim 3, characterized in that, The displacement drive (33) is an electric gripper; a receiving groove (233) that cooperates with the displacement drive (33) is opened on the seat (23). Along the height direction, the slot (21) is provided on the top surface of the seat (23), and the receiving groove (233) is located below the slot (21).

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