Jig for ink-jet printer

Abstract

The jig comprises a material rotating module and a cup clamping jig body, the material rotating module comprises a material rotating head end driving rotating module, a material rotating head end moving module and a material rotating tail end module, and the material rotating head end driving rotating module is arranged on one side of the material rotating module and used for driving the cup clamping jig body to rotate around the rotating center axis of the cup clamping jig body; a material rotating head end moving module is arranged below the material rotating head end driving rotating module and used for abutting against and fixing a cup clamping jig, a material rotating tail end module is installed on the opposite side of the material rotating head end driving rotating module, the position of the material rotating tail end module is fixed, and the cup clamping jig is fixed to the material rotating module. The cup clamping jig is designed to be a detachable integrated module, after printing is completed, the cup clamping jig is taken down from the material transferring module, and then the object is taken down from the cup clamping jig. The jig is small and exquisite in structure, high in compatibility and capable of being used for installing a curved surface object with a protruding part.

Description

Technical Field

[0001] The invention relates to a jig for an inkjet printer, in particular to a jig for an inkjet printer used for fixing and installing a curved surface object with a protruding portion. Background Art

[0002] At present, inkjet printing technology is widely used in various industries. When printing cylindrical bottles, open cups or other special-shaped curved objects, personalized graphics can be printed through inkjet printing. When printing objects of various special shapes, special fixtures need to be designed to fix the objects to be printed, so as to assist the operator to easily load the materials and ensure that the objects to be printed rotate smoothly during the printing process, so as to print high-quality and high-precision patterns.

[0003] In the prior art, rubber wheels are used to assist in floating the object to be printed. The structural principle used is to directly contact the object directly below the object to be printed. The above method can only be used to install cylindrical objects or conical objects. For objects with protruding parts, such as cups with handles, they cannot be positioned and driven to rotate.

[0004] When the shape of the object to be printed is a curved object with protruding parts, in order to cooperate with its inkjet printing, it is necessary to design a jig for the inkjet printer with strong compatibility and convenient operation. Summary of the invention

[0005] The object of the present invention is to overcome the limitations of the prior art and provide a jig for an inkjet printer. The jig for an inkjet printer comprises a material transfer module and a cup clamping jig. The material transfer module comprises a material transfer head end driving rotation module, a material transfer head end moving module and a material transfer tail end module. The material transfer head end driving rotation module is arranged on one side of the material transfer module, and is used to drive the cup clamping jig to rotate around its own rotation center axis. A material transfer head end moving module is arranged below the material transfer head end driving rotation module. The material transfer head end moving module is used to tighten and fix the cup clamping jig. A material transfer tail end module is installed on the opposite side of the material transfer head end driving rotation module. The position of the material transfer tail end module is fixed. The cup clamping jig is clamped and fixed on the material transfer module. At least two objects to be printed are installed on the cup clamping jig. The feature is that the cup clamping jig is arranged as a detachable integrated module design. After the object to be printed is installed in the cup clamping jig, the cup clamping jig is directly fixed on the material transfer module. When printing is completed, the cup clamping jig is removed from the material transfer module, and then the object is removed from the cup clamping jig.

[0006] In the inkjet printer jig as described above, the object to be printed is a curved object with protruding parts.

[0007] As described above, the jig for an inkjet printer comprises a head end assembly, a tail end assembly, an intermediate sliding assembly and a slide rod. The head end assembly is arranged at one end of the cup clamping jig, and the tail end assembly is arranged at the other end of the cup clamping jig. A slide rod is arranged between the head end assembly and the tail end assembly and on one side of the cup clamping jig along the generatrix direction of the object to be printed, and at least one intermediate sliding assembly is arranged on the slide rod.

[0008] As described above, the jig for the inkjet printer has a cup mouth interface plate arranged on the inner side of the head end assembly of the cup clamping jig, a cup bottom interface plate arranged on the inner side of the tail end assembly of the cup clamping jig, and a group of cup mouth interface plates and cup bottom interface plates are arranged on both sides of the middle sliding assembly, the cup mouth interface plate matches the shape of the cup mouth, the cup mouth of the object to be printed abuts against the cup mouth interface plate, the cup bottom interface plate matches the shape of the cup bottom, and the bottom surface of the object to be printed abuts against the cup bottom interface plate.

[0009] As described above, the jig for inkjet printers, the cup clamping jig also includes an inflation end portion, the inflation end portion is arranged on one side of the head end assembly, the inflation end portion includes a cylinder, a tower spring, an inflation port and an air release button, the cylinder is arranged inside the head end assembly, a tower spring is installed at the other end of the cylinder, the inflation port is used to inflate the cylinder, and a air release button is provided next to the inflation port, and the air release button is used to deflate the cylinder.

[0010] As described above, the inkjet printer jig is equipped with an air gun, and the air gun is used to connect the air inlet on the jig to inflate the cylinder. At this time, the piston in the cylinder will move backward, driving the head end assembly backward; the air release button is pressed to exhaust the air in the cylinder. At this time, the internal conical spring pushes the piston rod to drive the head end assembly to move outward, clamping the cup clamping jig.

[0011] As described above, the jig for the inkjet printer is used in conjunction with a quick centering jig. When the cup jig is removed and the object to be printed is installed, the quick centering jig is used to assist in positioning at least two objects to be printed, so that the central axis of each object to be printed is aligned and stably connected and fixed on the cup jig.

[0012] As described above, in the jig for inkjet printer, the material transfer head end driving rotation module comprises a material transfer motor, a coupling and a material transfer shaft, the output end of the material transfer motor is connected to the material transfer shaft through a coupling, and the material transfer shaft is connected to the cup clamping jig.

[0013] The jig for inkjet printer as described above, the transfer head end moving module includes a transfer shaft head end upright plate, a push-up cylinder, a guide rail and a slider, the slider is connected to the lower end of the transfer shaft head end upright plate, the slider cooperates with the slide rail arranged along the first direction, and a push-up cylinder is connected to the outer side of the bottom of the transfer shaft head end upright plate, and the transfer shaft head end upright plate and the transfer head end driving rotation module connected thereto are moved along the guide rail in the first direction by pushing out or retracting the push-up cylinder.

[0014] As described above, the inkjet printer jig, the material transfer tail end module includes a free top core shaft and a tail vertical plate, and a free top core shaft is arranged inside the tail vertical plate to clamp the cup clamping jig and fix it on the material transfer module.

[0015] The beneficial effect of the present invention is that when the shape of the object to be printed is a curved object with protruding parts, for example, the object to be printed is a cup with a handle, the above object can be fixedly installed and driven to rotate, and the protruding parts of the shape can be used to uniformly position multiple objects to be printed, so that the central axes of each object to be printed coincide, ensuring that the printing quality of each object is consistent under a high-efficiency working state of printing multiple objects at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of a cup clamping fixture and a material transfer module used in an inkjet printer according to one embodiment of the present invention; Figure 2 A schematic diagram of separating a cup clamping jig and a quick centering jig in one embodiment of the present invention; Figure 3 It is a structural schematic diagram of placing the cup clamping jig on the quick centering jig; Figure 4 It is a schematic diagram of the installation of two ends of an object to be printed in another embodiment of the present invention; Figure 5 It is a schematic structural diagram of the inflatable end portion of the cup clamping fixture in one embodiment of the present invention; Figure 6 Schematic diagram of the structure of the alignment portion between the cup clamping fixture 7 and the material transfer module 3 in one embodiment of the present invention.

[0017] The serial numbers in the figure are as follows: material transfer module 3, cup clamping fixture 7, UV curing modules 5a, 5b, material transfer motor 31, coupling 32, material transfer shaft 33, free top core shaft 34, tail vertical plate 35, material transfer shaft head end vertical plate 36, material transfer module base plate 37, material top cylinder 38, guide rail 39, slider 310, cylinder 711, inflation port 712, air release button 713, conical spring 714 , head end assembly 71, tail end assembly 72, intermediate sliding assembly 73, 73a, 73b, slide rod 74, quick centering fixture 75, first pair of core rods 751a, second pair of core rods 751b, alignment rod 752, side plate 753a, inflation gun 754, cup bottom interface plate 732, 732a, 732b, 732c, cup mouth interface plate 731, 731a, 731b, 731c. DETAILED DESCRIPTION

[0018] The specific implementation of the inkjet printer fixture of the present invention is described in detail below with reference to the accompanying drawings.

[0019] The jig for an inkjet printer of this specific embodiment includes a cup clamping jig and a material transfer module on which the cup clamping jig is installed. The cup clamping jig and the material transfer module are installed in the inkjet printer. The cup clamping jig is used to clamp the object to be printed. The object to be printed is a curved surface object, which may have a protruding portion, such as a cup with a handle. The cup clamping jig is installed on the material transfer module. The material transfer module is mainly used to drive the object to be printed to rotate around its own central axis. During the rotation of the object to be printed, the nozzle of the inkjet printer sprays ink droplets onto the surface of the object to be printed to form a desired pattern or text.

[0020] Figure 1 The three-dimensional schematic diagram of the cup clamping jig used in the inkjet printer installed in the material transfer module. The jig for the inkjet printer includes the material transfer module 3 and the cup clamping jig 7. The cup clamping jig 7 is a modular design, which is used to clamp multiple objects to be printed with protruding parts and then be installed on the material transfer module 3 at one time. The material transfer module 3 controls the cup clamping jig 7 and the objects to be printed installed thereon to perform reciprocating rotation.

[0021] The structural design of the material transfer module 3 and the cup clamping fixture 7 is described in detail below: the material transfer module 3 includes a material transfer head end driving rotation module, a material transfer head end moving module, a material transfer tail end module and a material transfer module substrate 37. The material transfer module substrate 37 is arranged at the bottom of the material transfer module 3 as a reference plane.

[0022] A transfer head end driving rotation module is installed on one side above the transfer module substrate 37. The transfer head end driving rotation module includes a transfer motor 31, a coupling 32 and a transfer shaft 33. The output end of the transfer motor 31 is connected to the transfer shaft 33 through the coupling 32. The transfer shaft 33 is connected to the cup clamping fixture 7. The cup clamping fixture 7 is configured as a detachable integrated clamping module. Several objects to be printed are installed in the cup clamping fixture 7. The transfer motor 31 drives the transfer shaft 33 to drive the cup clamping fixture 7 to rotate forward or reverse around its own rotation center axis.

[0023] A transfer head end moving module is arranged below the transfer head end driving rotation module, and the transfer head end moving module includes a transfer shaft head end vertical plate 36, a material pushing cylinder 38, a guide rail 39 and a slider 310. The transfer shaft head end vertical plate 36 is connected to the transfer motor 31 through a connecting plate, and the slider 310 is connected to the lower end of the transfer shaft head end vertical plate 36. The slider 310 cooperates with the slide rail 39 arranged along the first direction, and a material pushing cylinder 38 is connected to the outer side of the bottom of the transfer shaft head end vertical plate 36. By pushing out or retracting the material pushing cylinder 38, the transfer shaft head end vertical plate 36 and the transfer head end driving rotation module connected thereto are moved in the first direction along the guide rail 39, so that the cup clamping fixture 7 is tightened and fixed.

[0024] A material transfer tail end module is installed above the material transfer module substrate 37 and on the opposite side of the material transfer head end driving rotation module. The position of the material transfer tail end module is fixed. The material transfer tail end module includes a free top center shaft 34 and a tail vertical plate 35. The tail vertical plate 35 is installed above the material transfer module substrate 37. A free top center shaft 34 is arranged on the inner side of the tail vertical plate 35 for clamping the cup clamping fixture 7 and fixing it on the material transfer module 3.

[0025] Ultraviolet curing modules 5a and 5b are also installed above the middle of the transfer module substrate 37 to cure the ink on the surface of the object to be printed.

[0026] When installing the object to be printed, first remove the cup clamping fixture 7, and use the quick centering fixture 75 to assist the operator to install several objects to be printed on the cup clamping fixture 7. Figure 2-6 Introduce it in detail.

[0027] like Figure 2 As shown, in this embodiment, three objects to be printed are mounted on a cup clamping jig 7, and the objects to be printed are mugs with handles. A quick centering jig 75 is used under the cup clamping jig 7 to align the central axes of the three objects to be printed and stably connect and fix them on the cup clamping jig 7 in series, thereby achieving the effect of quick positioning and clamping.

[0028] like Figure 3-5 As shown, the cup clamping jig 7 includes a head end assembly 71, a tail end assembly 72, an intermediate sliding assembly, a cup bottom interface plate, a cup mouth interface plate, a slide bar 74 and an inflatable end. The head end assembly 71 is arranged at one end of the cup clamping jig 7, and the tail end assembly 72 is arranged at the other end of the cup clamping jig 7. A slide bar 74 is arranged between the head end assembly 71 and the tail end assembly 72 and on one side of the cup clamping jig 7 along the generatrix direction of the object to be printed. The slide bar 74 is a straight rigid structure, and the slide bar 74 plays a guiding and aligning role, which can avoid deflection between the head end assembly 71, the tail end assembly 72 and the intermediate sliding assembly, thereby ensuring that the central axes of the disks on the head end assembly 71, the tail end assembly 72 and the intermediate sliding assembly coincide. A plurality of intermediate sliding components 73 are arranged on the slide bar 74. The intermediate sliding component is a precision sliding seat. The intermediate sliding component can stay at any position of the slide bar 74 according to the length of the object to be printed. A plurality of objects to be printed are placed between the head end component 71 and the tail end component 72. When three objects to be printed are installed, two intermediate sliding components 73a and 73b are arranged (such as Figure 3 ).

[0029] A cup mouth interface plate is arranged inside the head end component 71 of the cup clamping jig 7, a cup bottom interface plate is arranged inside the tail end component 72 of the cup clamping jig 7, and a set of cup mouth interface plates and cup bottom interface plates are arranged on both sides of each intermediate sliding component, respectively. The cup mouth interface plate 731 matches the shape of the cup mouth, and the cup mouth of the object to be printed abuts against the cup mouth interface plate. The cup bottom interface plate 732 matches the shape of the cup bottom, and the bottom surface of the object to be printed abuts against the cup bottom interface plate. The cup mouth interface plate and the cup bottom interface plate cooperate with each other to clamp the object to be printed and fix it on the cup clamping jig 7. When the object to be printed is fixed and clamped, the cup clamping jig 7 will automatically coincide the central axis of the object to be printed with the central axis of the cup clamping jig 7, and the center of each object to be printed will be consistent with the rotation center of the output shaft of the driving motor on the cup clamping jig 7. According to actual needs, a foamed silicone sheet can be pasted on the cup mouth interface plate 731 and the cup bottom interface plate 732 to compensate for the slight errors in the manufacturing size of each object to be printed. At the same time, the foamed silicone sheet can also increase the friction between the cup clamping fixture 7 and the object to be printed, thereby enhancing the printing stability.

[0030] The inflatable end of the cup clamping fixture 7 is arranged on one side of the head end assembly 71, and the structure is as follows: Figure 5 As shown, the inflation end includes a cylinder 711, a conical spring 714, an inflation port 712 and a deflation button 713. A cylinder 711 is provided inside the head end assembly 71, and a conical spring 714 is installed at the other end of the cylinder 711. The strength of the conical spring 714 is calculated by a formula to ensure that a stable clamping force is generated when fixing the object to be printed, thereby clamping a number of objects to be printed, and when the object to be printed repeatedly rotates at high speed around its own rotation center axis, the object to be printed will not slip or be eccentric, thereby avoiding the deviation of ink droplets during printing and blurring the pattern; at the same time, the workpiece will not be deformed due to excessive clamping force of the spring. The cylinder 711 is equipped with an air charging gun, and the air charging gun is used to connect the air charging port 712 on the fixture to inflate the cylinder 711. At this time, the piston in the cylinder will move backward to drive the head end assembly 71 to move backward to open the clamping mechanism; a deflation button 713 is provided next to the air charging port 712. The operator presses the deflation button 713 to exhaust the air from the cylinder 711. At this time, the internal conical spring 714 pushes the piston rod to drive the head end assembly 71 to move outward, clamping the cup clamp 7, thereby completing the fixation of the object to be printed.

[0031] The quick centering jig 75 includes a first pair of mandrels 751a, a second pair of mandrels 751b and an alignment rod 752. A second pair of mandrels 751b with a larger diameter and a first pair of mandrels 751a are sequentially arranged on one side of the quick centering jig 75. The first pair of mandrels 751a and the second pair of mandrels 751b are arranged along a first direction. Next to the first pair of mandrels 751a and close to the slide bar 74, an alignment rod 752 with a smaller diameter is arranged. The alignment rod 752 is also arranged along the first direction. A side plate 753a is arranged at the ends of the first pair of mandrels 751a and the second pair of mandrels 751b.

[0032] In the actual working process, the operator first places the cup clamping jig 7 on the first pair of core rods 751a and the second pair of core rods 751b with larger diameters on the quick centering jig 75, and then adjusts the cup clamping jig 7 so that the positioning surface below the head end assembly 71 rests on the alignment rod 752 with smaller diameter of the quick centering jig 75, and then moves the cup clamping jig 7 horizontally to the left to rest on the side plate 753a, thereby completing the quick centering of the cup clamping jig 7.

[0033] Next, the operator uses the air gun 754 to inflate the air inlet 712, opens the cup clamping fixture 7, and places the object to be printed on the first pair of mandrels 751a and the second pair of mandrels 751b to align the center axis of the cup. When the object to be printed has a protruding part, for example, the object to be printed is a cup, and the protruding part is the handle of the cup. The protruding part is pressed against the slide bar 74 to make the placement angles of the objects to be printed with the protruding parts consistent; then slide the object to be printed to the left, so that the bottom surface of the first installed object to be printed is pressed against the cup bottom interface plate 732a, and push the middle sliding assembly 73a by hand to make the top of the first object to be printed press against the cup mouth interface plate 731a, thereby completing the positioning of the first object to be printed. Next, place the second object to be printed, let the bottom surface of the second object to be printed abut against the cup bottom interface plate 732b, push the middle sliding component 73b by hand, let the top of the object to be printed abut against the cup mouth interface plate 731b, so as to complete the positioning of the second object to be printed. Then, when continuing to place the third object to be printed, let the bottom surface of the third object to be printed abut against the cup bottom interface plate 732c, push the head end component 71 by hand, let the top of the object to be printed abut against the cup mouth interface plate 731c, so as to complete the positioning of the third object to be printed. After the above three objects to be printed are placed, press the air release button 713, the cup mouth interface plate 731c at the end presses against the cup mouth of the third object to be printed, and all the objects to be printed are clamped and fixed on the cup clamping fixture 7.

[0034] Next, the cup clamping fixture 7 with the object to be printed is installed on the material transfer module 3. Figure 6As shown, the tail end component 72 of the cup clamping fixture 7 has a slide groove and a cylindrical hole design, which is used to quickly position and connect with the free top center shaft 34 of the material transfer module 3 to form a center line coincidence; the head end component 71 of the cup clamping fixture 7 has a V-shaped groove and a conical hole design, which is used to quickly position and connect with the material transfer shaft 33 of the material transfer module 3 to form a center line coincidence.

[0035] When the cup clamping fixture 7 is aligned to the position of the material transfer module 3, the material push-up cylinder 38 is pushed out to clamp the cup clamping fixture 7 between the material transfer head end module and the material transfer tail end module of the material transfer shaft module 3; when the cup clamping fixture 7 needs to be removed, the material push-up cylinder 38 is retracted, and the cup clamping fixture 7 can be removed from between the material transfer head end module and the material transfer tail end module of the material transfer shaft module 3. This loading and unloading method regards the cup clamping fixture 7 as a whole, performs modular operations on it, improves loading and unloading efficiency, facilitates operation, and optimizes structural design.

Claims

1. A jig for an inkjet printer, used for mounting at least two curved surface objects, the jig for an inkjet printer comprises a material transfer module and a cup clamping jig, the material transfer module comprises a material transfer head end driving rotation module, a material transfer head end moving module and a material transfer tail end module, the material transfer head end driving rotation module is arranged on one side of the material transfer module, and is used to drive the cup clamping jig to rotate around its own rotation center axis, a material transfer head end moving module is arranged below the material transfer head end driving rotation module, the material transfer head end moving module is used to tighten and fix the cup clamping jig, a material transfer tail end module is installed on the opposite side of the material transfer head end driving rotation module, the position of the material transfer tail end module is fixed, the cup clamping jig is fixed on the material transfer module, at least two objects to be printed are installed in the cup clamping jig, characterized in that, The cup clamping jig is set as a detachable integrated module design. After the object to be printed is installed in the cup clamping jig, the cup clamping jig is directly fixed on the material transfer module; when printing is completed, the cup clamping jig is removed from the material transfer module, and then the object is removed from the cup clamping jig.

2. The fixture according to claim 1, characterized in that: The object to be printed is a curved surface object with protruding parts.

3. The fixture according to claim 1, characterized in that: The cup clamping jig comprises a head end assembly, a tail end assembly, an intermediate sliding assembly and a sliding rod. The head end assembly is arranged at one end of the cup clamping jig, and the tail end assembly is arranged at the other end of the cup clamping jig. A sliding rod is arranged between the head end assembly and the tail end assembly and on one side of the cup clamping jig along the generatrix direction of the object to be printed, and at least one intermediate sliding assembly is arranged on the sliding rod.

4. The fixture according to claim 3, characterized in that: A cup mouth interface plate is arranged on the inner side of the head end assembly of the cup clamping jig, a cup bottom interface plate is arranged on the inner side of the tail end assembly of the cup clamping jig, a group of cup mouth interface plates and cup bottom interface plates are arranged on both sides of the middle sliding assembly, the cup mouth interface plate matches the shape of the cup mouth, the cup mouth of the object to be printed abuts against the cup mouth interface plate, the cup bottom interface plate matches the shape of the cup bottom, and the bottom surface of the object to be printed abuts against the cup bottom interface plate.

5. The fixture according to claim 3, characterized in that: The cup clamping fixture also includes an inflation end portion, which is arranged on one side of the head end assembly. The inflation end portion includes a cylinder, a tower-shaped spring, an inflation port and an air release button. The cylinder is arranged inside the head end assembly, and a tower-shaped spring is installed at the other end of the cylinder. The inflation port is used to inflate the cylinder, and a air release button is provided next to the inflation port, and the air release button is used to deflate the cylinder.

6. The fixture according to claim 5, characterized in that: The cylinder is equipped with an air charging gun, and the air charging gun is used to connect the air charging port on the fixture to inflate the cylinder. At this time, the piston in the cylinder will move backward, driving the head end assembly to move backward; the air release button is pressed to exhaust the cylinder. At this time, the internal tower-shaped spring pushes the piston rod to drive the head end assembly to move outward, clamping the cup clamping fixture.

7. The fixture according to claim 1, characterized in that: The cup clamping jig is used in conjunction with a quick centering jig. When the cup clamping jig is removed to install the object to be printed, the quick centering jig is used to assist in positioning at least two objects to be printed, so that the central axis of each object to be printed is aligned and stably connected and fixed on the cup clamping jig.

8. The fixture according to claim 1, characterized in that: The material transfer head end driving rotation module comprises a material transfer motor, a coupling and a material transfer shaft. The output end of the material transfer motor is connected to the material transfer shaft through the coupling, and the material transfer shaft is connected to the cup clamping fixture.

9. The fixture according to claim 1, characterized in that: The transfer head end moving module includes a transfer shaft head end vertical plate, a pushing cylinder, a guide rail and a slider. The slider is connected to the lower end of the transfer shaft head end vertical plate, and the slider cooperates with the slide rail arranged along the first direction. A pushing cylinder is connected to the outer side of the bottom of the transfer shaft head end vertical plate. The transfer shaft head end vertical plate and the transfer head end driving rotation module connected thereto are moved along the guide rail in the first direction by pushing out or retracting the pushing cylinder.

10. The fixture according to claim 1, characterized in that: The material transfer tail end module comprises a free top core shaft and a tail vertical plate. A free top core shaft is arranged inside the tail vertical plate to clamp the cup clamping fixture so as to fix it on the material transfer module.

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