Printing apparatus

Abstract

The utility model discloses a printing device, which relates to the technical field of pad printing machines and comprises a machine table. The transfer printing device comprises a transfer printing jig, an oil supply assembly, a printing assembly, a glue removing assembly and a heating assembly, the transfer printing jig, the oil supply assembly, the glue removing assembly and the heating assembly are movably arranged on the machine table in the first direction, and the printing assembly is movably arranged on the machine table in the second direction. The transfer printing jig, the heating assembly, the oil supply assembly, the glue removing assembly and the printing assembly are sequentially arranged in the second direction. The technical scheme provided by the utility model has the technical effects that the workpiece is heated by the heating assembly after being impressed, so that the impressing effect of the printing assembly on the workpiece is improved; the transfer printing jig, the heating assembly, the oil supply assembly, the glue removing assembly and the printing assembly are sequentially arranged in the second direction, and then the working efficiency of the printing device is improved.

Description

Technical Field

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

[0002] Pad printing machines typically employ multiple devices working together to complete the pad printing process on a workpiece. During printing, ink is placed on an etched or laser-engraved printing plate, and then the ink is pressed onto the workpiece through a printing head, thus transferring the pattern onto the workpiece. However, existing pad printing machines have low operating efficiency, reducing workpiece production efficiency and failing to meet user needs. Utility Model Content

[0003] The main purpose of this invention is to provide a printing device that aims to improve the working efficiency of the printing device.

[0004] To achieve the above objectives, the present invention proposes a printing apparatus, including a machine base; a pad printing apparatus, including a pad printing fixture, an ink supply component, a printing component, a glue removal component, and a heating component. The pad printing fixture, the ink supply component, the glue removal component, and the heating component are movably mounted on the machine base along a first direction, and the printing component is movably mounted on the machine base along a second direction. The pad printing fixture, the heating component, the ink supply component, the glue removal component, and the printing component are arranged sequentially along the second direction, with the printing component located above the glue removal component. The pad printing fixture is used to place the workpiece, the ink supply component is located below the printing component, and the ink supply component is used to dip the printing surface of the printing component into ink. The heating component is located between the pad printing fixture and the printing component, and the heating component is used to heat the printing component and the workpiece respectively. The printing component is used to press ink onto the workpiece, and the glue removal component is used to remove ink from the printing component. The first direction and the second direction intersect.

[0005] In one embodiment, the pad printing fixture includes a base, a plurality of positioning components, and a first driving component. The base has a placement area for placing a workpiece. The plurality of positioning components are arranged around the placement area and are used for adjusting the position of the workpiece. The first driving component is driven and connected to the base. The first driving component is located on the side of the base opposite to the placement area and is used to drive the base to move along a first direction.

[0006] In one embodiment, the base includes a mounting plate having a placement area and a plurality of mounting grooves arranged around the placement area. A plurality of positioning components include a driver and a plurality of positioning elements, the plurality of positioning elements being mounted one-to-one in the plurality of mounting grooves. The driver is mounted on the side of the mounting plate opposite to the placement area and is used to drive the workpiece to move along the second direction.

[0007] In one embodiment, the machine tool is provided with a first mounting base, the first mounting base and the pad printing fixture are spaced apart along the first direction, the oil supply assembly includes a pad printing plate and an oil cup, the pad printing plate is movably disposed on the first mounting base along the first direction, the oil cup is mounted on the first mounting base, and the oil cup is located above the pad printing plate.

[0008] In one embodiment, the ink supply assembly further includes a second drive assembly, which drives the pad printing plate to be connected. The pad printing plate has a first position and a second position spaced apart along the first direction. The first position is located on the side of the second position close to the pad printing fixture. The first position is used for the printing surface of the printing assembly to pick up ink. The second drive assembly is used to drive the pad printing plate to move along the first direction so that the ink cup reciprocates between the first position and the second position.

[0009] In one embodiment, the machine tool is provided with a second mounting base extending along the third direction. The printing assembly includes a printing head, a connecting seat, and a third driving assembly. The third driving assembly is mounted on the second mounting base and drives the connecting seat. The printing head is detachably connected to the connecting seat and is located on the side of the connecting seat near the pad printing fixture. The third driving assembly is used to drive the connecting seat to move along the second direction.

[0010] In one embodiment, the printing apparatus further includes a fastener, the printing head has the imprinting surface, the printing head has a connecting portion on the side opposite to the imprinting surface, the connecting seat has a mounting groove adapted to the connecting portion, and the connecting portion is installed in the mounting groove by the fastener so that the printing head is installed on the connecting seat.

[0011] In one embodiment, the adhesive removal assembly includes a fourth drive assembly, a movable plate, and guide rails disposed on both sides of the movable plate. The fourth drive assembly is disposed on the second mounting base and is driven to connect to the guide rails. The movable plate is movably disposed on the guide rails along the first direction. The movable plate is located between the printing assembly and the ink supply assembly. The movable plate is used to install tape for removing ink from the printing assembly.

[0012] In one embodiment, the heating assembly includes a base and a first heating element and a second heating element disposed on both sides of the base. The first heating element is located on the side of the base closer to the printing assembly, and the second heating element is located on the side of the base closer to the pad printing fixture. The first heating element is used to heat the printing assembly, and the second heating element is used to heat the workpiece.

[0013] In one embodiment, the pad printing device is configured as at least three groups, and the at least three groups of pad printing devices are arranged side by side along a third direction on the machine.

[0014] The technical solution of this utility model uses a pad printing fixture to transport the workpiece from the loading area of ​​the printing device to the bottom of the pad printing device. The printing component dips in ink through the oil supply component and heats the ink on the printing component's imprinting surface through the heating component. After the printing component imprints and holds the workpiece, the ink is removed by the adhesive removal component, which makes it easier for the printing component to perform the next printing. After the workpiece is imprinted, it is heated by the heating component, which improves the imprinting effect of the printing component on the workpiece. The pad printing fixture, heating component, oil supply component, adhesive removal component, and printing component are arranged sequentially along the second direction, which makes it easier for the printing component to continuously process the workpiece, thereby improving the working efficiency of the printing device. 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 structure of an embodiment of the printing apparatus provided by this utility model;

[0017] Figure 2 A schematic diagram of the printing apparatus provided by this utility model from another angle;

[0018] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0019] Figure 4 A schematic diagram of the structure of the oil supply component and the first mounting base in one embodiment of the printing apparatus provided by this utility model;

[0020] Figure 5 A schematic diagram of the structure of a pad printing fixture in one embodiment of the printing apparatus provided by this utility model;

[0021] Figure 6 A schematic diagram of the adhesive removal component in one embodiment of the printing apparatus provided by this utility model.

[0022] Explanation of icon numbers:

[0023] 100. Printing apparatus; 1. Machine base; 11. First mounting base; 12. Second mounting base; 2. Pad printing device; 21. Pad printing fixture; 211. Base; 2111. Placement area; 2112. Mounting plate; 2113. Mounting groove; 212. Positioning assembly; 2121. Driver; 2122. Positioning element; 213. First drive assembly; 22. Oil supply assembly; 221. Pad printing plate; 2211. First position; 222. Oil cup; 2 23. Second drive assembly; 23. Printing assembly; 231. Glue head; 2311. Imprinting surface; 2312. Connecting part; 232. Connecting seat; 2321. Mounting slot; 233. Third drive assembly; 24. Glue removal assembly; 241. Fourth drive assembly; 242. Moving plate; 243. Guide rail; 25. Heating assembly; 251. Base; 252. First heating element; 253. Second heating element; 254. Connecting frame; 3. Fastener.

[0024] 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

[0025] 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 scope of protection of the present utility model.

[0026] 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.

[0027] 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.

[0028] This utility model proposes a printing device 100.

[0029] Please see Figures 1 to 2 In one embodiment of this utility model, the printing apparatus 100 includes a machine base 1 and a pad printing device 2; the pad printing device 2 includes a pad printing fixture 21, an ink supply assembly 22, a printing assembly 23, a glue removal assembly 24, and a heating assembly 25. The pad printing fixture 21, the ink supply assembly 22, the glue removal assembly 24, and the heating assembly 25 are movably mounted on the machine base 1 along a first direction, and the printing assembly 23 is movably mounted on the machine base 1 along a second direction. The pad printing fixture 21, the heating assembly 25, the ink supply assembly 22, the glue removal assembly 24, and the printing assembly 23 are arranged sequentially along the second direction. The printing assembly 23 is positioned above the adhesive removal assembly 24; the pad printing fixture 21 is used to place the workpiece; the ink supply assembly 22 is positioned below the printing assembly 23 and is used to dip the printing surface 2311 of the printing assembly 23 into ink; the heating assembly 25 is positioned between the pad printing fixture 21 and the printing assembly 23 and is used to heat the printing assembly 23 and the workpiece respectively; the printing assembly 23 is used to press ink onto the workpiece; and the adhesive removal assembly 24 is used to remove ink from the printing assembly 23. The first direction and the second direction intersect.

[0030] The technical solution of this utility model uses a pad printing fixture 21 to transport the workpiece from the loading area of ​​the printing device 100 to the bottom of the pad printing device 2. The printing component 23 dips into ink through the ink supply component 22 and heats the ink on the printing component 23's imprinting surface 2311 through the heating component 25. After the printing component 23 imprints and holds the workpiece, the ink is removed by the adhesive removal component 24, which makes it easier for the printing component 23 to perform the next printing. After the workpiece is imprinted, it is heated by the heating component 25, which improves the imprinting effect of the printing component 23 on the workpiece. The pad printing fixture 21, heating component 25, ink supply component 22, adhesive removal component 24 and printing component 23 are arranged sequentially along the second direction, which makes it easier for the printing component 23 to continuously process the workpiece, thereby improving the working efficiency of the printing device 100.

[0031] In this embodiment, the first direction can be consistent with the front-back direction, and the second direction can be consistent with the up-down direction. The ink supply component 22, the adhesive removal component 24, and the heating component 25 can move along the first direction to switch their respective positions, thereby facilitating the printing component 23 to sequentially complete the processes of ink dipping, heating, imprinting the workpiece, and ink removal, thus improving the working efficiency of the printing component 23. Specifically, when the printing component 23 needs to be dipped in ink, the adhesive removal component 24 and the heating component 25 can be moved to a side relatively away from the printing component 23 and the ink supply component 22, while the ink supply component 22 moves to a position directly below the printing component 23. The printing component 23 is movably mounted on the machine base 1 along the second direction, and is located above the pad printing fixture 21 and other processing components such as the ink supply component 22, thereby facilitating the printing component 23 to adjust its position relative to the pad printing fixture 21 and the ink supply component 22, and thus facilitating the printing component 23 to efficiently perform the imprinting process on the workpiece. The pad printing apparatus 2 of this application can continuously perform two printing processes on the product in one processing step, thereby ensuring the printing effect of the printing component 23 on the workpiece. After each ink application, the printing component 23 is heated by the heating component 25. The heated printing component 23 then sequentially presses and holds pressure on the workpiece. The workpiece is heated by the heating component 25 after each printing by the printing component 23, thus improving the printing effect. After the printing component 23 completes the printing action, it can cooperate with the adhesive removal component 24 to remove the ink from the printing component 23, ensuring continuous printing of the workpiece by the printing component 23 and improving the working efficiency of the pad printing apparatus 2.

[0032] like Figure 1 and Figure 5As shown, the pad printing fixture 21 includes a base 211, a plurality of positioning components 212, and a first driving component 213. The base 211 has a placement area 2111 for placing a workpiece. The plurality of positioning components 212 are arranged around the placement area 2111 and are used for adjusting the position of the workpiece. The first driving component 213 is driven and connected to the base 211. The first driving component 213 is located on the side of the base 211 opposite to the placement area 2111 and is used to drive the base 211 to move along the first direction.

[0033] In this embodiment, by arranging multiple positioning components 212 around the placement area 2111, the multiple positioning components 212 can abut against and drive the workpiece to move, thereby achieving precise adjustment of the workpiece position before imprinting, and thus improving the subsequent imprinting accuracy. The multiple positioning components 212 may include a positioning component 212 for adjusting the position of the workpiece along a first direction and a positioning component 212 for adjusting the position of the workpiece along a third direction, achieving simultaneous correction of the workpiece position along two different horizontal directions, thereby improving the consistency of subsequent transfer printing. The third direction may be consistent with the left-right direction.

[0034] In this embodiment, the first driving component 213 may include a first slide rail (unmarked) and a first driving member (unmarked). The pad printing fixture 21 also includes a first slider (unmarked). The first slider is disposed on the side of the base 211 away from the placement area 2111. The first driving member drives and connects to the first slider so that the base 211 slides and connects to the first slide rail through the first slider, thereby making it easier for the pad printing fixture 21 to move along the first direction.

[0035] like Figure 1 and Figure 5 As shown, the base 211 includes a mounting plate 2112, the mounting plate 2112 having the placement area 2111 and a plurality of mounting grooves 2113, the plurality of mounting grooves 2113 being arranged around the placement area 2111, a plurality of positioning components 212 including a driver 2121 and a plurality of positioning elements 2122, the plurality of positioning elements 2122 being installed one-to-one in the plurality of mounting grooves 2113, the driver 2121 being installed on the side of the mounting plate 2112 opposite to the placement area 2111, the driver 2121 being used to drive the workpiece to move along the second direction.

[0036] In this embodiment, the driver 2121 can be configured as a driving device such as a cylinder or an electric push rod. The driver 2121 is used to lift the workpiece, thereby facilitating the printing assembly 23 to imprint the workpiece. This application employs multiple mounting grooves 2113 arranged horizontally around the placement area 2111, with multiple positioning elements 2122 installed one-to-one within each of the mounting grooves 2113. This facilitates the multiple positioning elements 2122 clamping the workpiece and adjusting its position. The positioning elements 2122 and the driver 2121 can cooperate to adjust the workpiece's position in the horizontal or vertical direction, further facilitating the printing assembly 23 to imprint the workpiece.

[0037] In this embodiment, the plurality of positioning components 212 further include a second driving member in the same number as the plurality of positioning elements 2122. The second driving member drives the positioning elements 2122 and is used to drive the positioning elements 2122 to abut against or move away from the workpiece.

[0038] like Figure 2 and Figure 4 As shown, the machine base 1 is provided with a first mounting base 11, which is spaced apart from the pad printing fixture 21 along the first direction. The oil supply assembly 22 includes a pad printing plate 221 and an oil cup 222. The pad printing plate 221 is movably disposed on the first mounting base 11 along the first direction, and the oil cup 222 is mounted on the first mounting base 11 and is located above the pad printing plate 221.

[0039] In this embodiment, the machine base 1 further includes a fixing member (not marked), the pad printing plate 221 is movably disposed on the first mounting base 11 along the first direction, and the two sides of the ink cup 222 are mounted on the first mounting base 11 by the fixing member, thereby improving the stability of the ink supply assembly 22 installed on the machine base 1. The ink cup 222 is used to supply ink to the pad printing plate 221, and the pad printing plate 221 is used to supply ink to the printing assembly 23.

[0040] like Figure 2 and Figure 4 As shown, the ink supply assembly 22 further includes a second drive assembly 223, which drives and connects to the pad printing plate 221. The pad printing plate 221 has a first position 2211 and a second position spaced apart along the first direction. The first position 2211 is located on the side of the second position close to the pad printing fixture 21. The first position 2211 is used for the printing surface 2311 of the printing assembly 23 to pick up ink. The second drive assembly 223 is used to drive the pad printing plate 221 to move along the first direction so that the ink cup 222 reciprocates between the first position 2211 and the second position.

[0041] In this embodiment, the present application employs a second driving component 223 to drive the pad printing plate 221 to move relative to the ink cup 222 along a first direction, causing the ink cup 222 to reciprocate between a first position 2211 and a second position on the pad printing plate 221, thereby facilitating the ink cup 222 to supply ink to the pad printing plate 221. Specifically, when the printing component 23 needs to pick up ink, under the drive of the second driving component 223, the first position 2211 of the pad printing plate 221 is located below the printing component 23, and the second position of the pad printing plate 221 is located below the ink cup 222, thereby facilitating the printing component 23 to pick up ink. When the pad printing plate 221 needs to be replenished with ink, under the drive of the second driving component 223, the first position 2211 of the pad printing plate 221 is located below the ink cup 222, thereby facilitating the ink cup 222 to replenish ink to the pad printing plate 221.

[0042] In this embodiment, the second driving assembly 223 may include a second slide rail (unmarked) and a second driving member (unmarked), with the second slide rail disposed on the first mounting base 11. The pad printing plate 221 also includes a second slider (unmarked), which is disposed on the side of the pad printing plate 221 opposite to the ink cup 222. The second driving member drives the pad printing plate 221 so that the pad printing plate 221 slides along the second slide rail via the second slider, thereby facilitating the movement of the pad printing plate 221 along the first direction.

[0043] like Figure 2 and Figure 3 As shown, the machine base 1 is provided with a second mounting base 12, which extends along the third direction. The printing component 23 includes a glue head 231, a connecting seat 232, and a third driving component 233. The third driving component 233 is mounted on the second mounting base 12 and drives the connecting seat 232. The glue head 231 is detachably connected to the connecting seat 232 and is located on the side of the connecting seat 232 near the pad printing fixture 21. The third driving component 233 is used to drive the connecting seat 232 to move along the second direction.

[0044] In this embodiment, to ensure a more stable mounting of the printing assembly 23 on the machine base 1, a third drive assembly 233 is mounted on the second mounting base 12, and the third drive assembly 233 drives the connecting base 232. To facilitate the reciprocating movement of the printing assembly 23 along a third direction, the third drive assembly 233 drives the connecting base 232, and the ink head 231 is detachably connected to the end of the connecting base 232 near the pad printing fixture 21. The ink head 231 is used to pick up ink and to press and hold pressure on the workpiece. By detachably connecting the ink head 231 to the connecting base 232, it is easier to replace the ink head 231.

[0045] In this embodiment, the third drive assembly 233 may include a third slide rail (unmarked) and a third drive member (unmarked), with the third slide rail disposed on the second mounting base 12. The printing assembly 23 also includes a third slider (unmarked), which is disposed on the side of the connecting base 232 opposite to the glue head 231. The third drive member drives the connecting base 232 to slide and connect to the third slide rail via the third slider, thereby facilitating the movement of the connecting base 232 along the second direction.

[0046] like Figure 3 As shown, the printing device 100 further includes a fastener 3. The printing head 231 has the imprinting surface 2311. The printing head 231 has a connecting portion 2312 on the side opposite to the imprinting surface 2311. The connecting seat 232 has a mounting groove 2321 that is adapted to the connecting portion 2312. The connecting portion 2312 is installed in the mounting groove 2321 by the fastener 3, so that the printing head 231 is installed on the connecting seat 232.

[0047] In this embodiment, the fastener 3 can be configured as a wing screw or a fastening screw, etc. By inserting the connecting part 2312 of the rubber head 231 into the mounting groove 2321 of the connector 232, and then locking the rubber head 231 onto the connector 232 by the fastener 3, the stability of the connection between the rubber head 231 and the connector 232 is improved, and the replacement of the rubber head 231 is made more convenient.

[0048] like Figure 6 As shown, the adhesive removal assembly 24 includes a fourth drive assembly 241, a movable plate 242, and guide rails 243 disposed on both sides of the movable plate 242. The fourth drive assembly 241 is disposed on the second mounting base 12 and is driven to connect to the guide rails 243. The movable plate 242 is movably disposed on the guide rails 243 along the first direction. The movable plate 242 is located between the printing assembly 23 and the ink supply assembly 22. The movable plate 242 is used to install the tape for removing ink from the printing assembly 23.

[0049] In this embodiment, the fourth driving assembly 241 may include a fourth driving member (not labeled), which is disposed on the second mounting base 12 and drives the connecting guide rail 243. The fourth driving member can drive the guide rail 243 to rotate, thereby causing the movable plate 242 to move along the first direction, thus facilitating the displacement of the movable plate 242 to below the printing assembly 23. Adhesive tape can be installed on the movable plate 242. When the printing assembly 23 needs to be cleaned, the printing assembly 23 contacts the adhesive tape, allowing the tape to remove the ink from the printing assembly 23, thus facilitating the printing assembly 23 to perform the next printing.

[0050] like Figure 1 and Figure 4 As shown, the heating assembly 25 includes a base 251 and a first heating element 252 and a second heating element 253 disposed on both sides of the base 251. The first heating element 252 is located on the side of the base 251 closer to the printing assembly 23, and the second heating element 253 is located on the side of the base 251 closer to the pad printing fixture 21. The first heating element 252 is used to heat the printing assembly 23, and the second heating element 253 is used to heat the workpiece.

[0051] In this embodiment, the first heating element 252 and the second heating element 253 can be configured as heating fans. The air outlet of the first heating element 252 can face the printing component 23, and the air outlet of the second heating element 253 can face the workpiece. This makes it easier for the heating component 25 to heat the printing component 23 and the workpiece separately, thereby improving the imprinting effect of the printing component 23 on the workpiece.

[0052] In this embodiment, the heating assembly 25 further includes a connecting frame 254, which is connected to the base 251. The first mounting base 11 is provided with a fourth slide rail (not marked). The fourth slide rail extends along a first direction. The side of the connecting frame 254 opposite to the base 251 is provided with a fourth slider adapted to the fourth slide rail. The connecting frame 254 is slidably mounted on the fourth slide rail via the fourth slider, thereby preventing the heating assembly 25 from obstructing the printing assembly 23 from picking up ink.

[0053] like Figure 1 As shown, the pad printing device 2 is configured as at least three groups, and the at least three groups of pad printing devices 2 are arranged side by side along a third direction on the machine base 1.

[0054] In this embodiment, the present application employs at least three sets of pad printing devices 2 arranged in parallel to achieve simultaneous printing of workpieces at multiple workstations within the limited space of the machine 1, thereby reducing the space occupied by the present application.

[0055] 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 printing device characterized by comprising: The application relates to a printing machine. The printing machine comprises a machine table and a printing device, wherein the printing device comprises a printing jig, an oil supply assembly, a printing assembly, a glue cleaning assembly and a heating assembly, the printing jig, the oil supply assembly, the glue cleaning assembly and the heating assembly are movably arranged on the machine table along a first direction, the printing assembly is movably arranged on the machine table along a second direction, the printing jig, the heating assembly, the oil supply assembly, the glue cleaning assembly and the printing assembly are sequentially arranged along the second direction, and the printing assembly is arranged above the glue cleaning assembly. The printing jig is used for placing a workpiece, the oil supply assembly is arranged below the printing assembly, the oil supply assembly is used for dipping ink on a printing surface of the printing assembly, the heating assembly is arranged between the printing jig and the printing assembly, the heating assembly is used for heating the printing assembly and the workpiece respectively, the printing assembly is used for printing ink on the workpiece, and the glue cleaning assembly is used for cleaning the ink on the printing assembly, wherein the first direction intersects the second direction. The printing jig comprises a base, a plurality of positioning assemblies and a first driving assembly, the base has a placing area for placing a workpiece, the positioning assemblies are arranged around the placing area, the positioning assemblies are used for adjusting the position of the workpiece, and the first driving assembly is drivingly connected to the base and arranged on a side of the base away from the placing area, and the first driving assembly is used for driving the base to move along the first direction.

2. The printing apparatus of claim 1, wherein The base comprises a mounting plate, the mounting plate has the placing area and a plurality of mounting grooves, the mounting grooves are arranged around the placing area, the positioning assemblies comprise a driver and a plurality of positioning members, the positioning members are one-to-one mounted in the mounting grooves, the driver is mounted on a side of the mounting plate away from the placing area, and the driver is used for driving the workpiece to move along the second direction.

3. The printing apparatus of claim 2, wherein The machine table is provided with a first mounting seat, the first mounting seat is arranged at intervals with the printing jig along the first direction, the oil supply assembly comprises a printing plate and an oil cup, the printing plate is movably arranged on the first mounting seat along the first direction, and the oil cup is mounted on the first mounting seat and arranged above the printing plate.

4. The printing apparatus of claim 1, wherein The oil supply assembly further comprises a second driving assembly, the second driving assembly is drivingly connected to the printing plate, the printing plate has a first position and a second position arranged at intervals along the first direction, the first position is arranged on a side of the second position close to the printing jig, the first position is used for dipping ink on the printing surface of the printing assembly, and the second driving assembly is used for driving the printing plate to move along the first direction, so that the oil cup reciprocates between the first position and the second position.

5. The printing apparatus of claim 4, wherein ​ 6. The printing apparatus of claim 1, wherein The machine table is provided with a second mounting seat extending along the third direction, the printing assembly includes a rubber head, a connecting seat and a third driving assembly, the third driving assembly is mounted on the second mounting seat, the third driving assembly drives the connecting seat, the rubber head is detachably connected to the connecting seat, the rubber head is located on the side of the connecting seat close to the pad printing jig, and the third driving assembly is used to drive the connecting seat to move along the second direction.

7. The printing apparatus of claim 6, wherein The printing device further includes a fastener, the rubber head has the impression surface, the side of the rubber head away from the impression surface is provided with a connecting part, the connecting seat is provided with a mounting groove matched with the connecting part, and the connecting part is mounted in the mounting groove through the fastener, so that the rubber head is mounted on the connecting seat.

8. The printing apparatus of claim 6, wherein The glue removing assembly includes a fourth driving assembly, a moving plate and guide rails arranged on both sides of the moving plate, the fourth driving assembly is arranged on the second mounting seat, the fourth driving assembly drives the guide rails, the moving plate is movably arranged on the guide rails along the first direction, the moving plate is located between the printing assembly and the oil supply assembly, and the moving plate is used to mount an adhesive tape for removing ink on the printing assembly.

9. The printing apparatus of claim 4, wherein The heating assembly includes a base and first and second heating members arranged on both sides of the base, the first heating member is located on the side of the base close to the printing assembly, the second heating member is located on the side of the base close to the pad printing jig, the first heating member is used to heat the printing assembly, and the second heating member is used to heat the workpiece.

10. The printing apparatus of any one of claims 1 to 9, wherein The pad printing device is provided as at least three groups, and the at least three groups of pad printing devices are arranged side by side along the third direction on the machine table.

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