FIELD OF INVENTION:
[001] The present invention relates to the pad printing. The present invention in particular relates to the combination pad printing in watch dial.
DESCRIPTION OF THE RELATED ART:
[002] Tampon printing machines are known where the printing block and the workpiece rest when the printing image is received and when it is transferred. Here, the tampon is adjusted in a linear motion, in most cases in three directions. After the transfer of the printing image the workpiece holder also executes a linear motion so that a new workpiece holder with a workpiece can be brought to the printing position.
Reference may be made to the following:
[003] Publication No JPS58110253 relates to the printing method for the tampon-printer. When the pitch P2 at the position of printing of the material to be printed 26 is larger than the pitch P1 between the tampons 5, 6 in case of the pick-up of ink, a microswitch 32 transmits positive signals to a motor cylinder 7 when the process of the pick-up of ink by the tampons 5, 6 is completed, the pitch P1 between the tampons 5, 6 is changed into P2. A cylinder section 25 drops onto the position of printing of the material to be printed under the state, and the material is printed by the tampons 5, 6 at the pitch P2.; When printing is completed, the cylinder section 25 rises, reverse signals are transmitted to the motor cylinder 7 from the microswitch 32, and the pitch P2 between the tampons 5, 6 is changed into that of the P1.
[004] Patent No. US4723485 relates to this object is achieved by synchronously moving the tampons, printing blocks, and workpieces respectively on an endless line, by arranging at least one section of the line with the tampons parallel to a section of the line with the printing blocks and at least one further section of the line with the tampons parallel to a section of the line with the workpieces, and by moving all of them in the same direction, and by alternately adjusting the tampons in the synchronous sections of the lines perpendicular to the corresponding sections and by bringing them into a position to interact--for a given travel path--with an inked printing block for receiving the printing image and with a workpiece for transferring the printing image.
[005] In present invention tampons are in line to a section of the line with the workpieces. Thus effectively printing of multiple chronos is done simultaneously using less space.
[006] Patent No. US6363849 relates to a tampon printing machine having at least one engraved printing plate, an inking device that inks a gravure engraving with printing ink and a printing pad that lifts the ink out of the engraving and transfers it to an object that is to be printed.
[007] The present invention does not have any laser guided movement.
[008] Patent No. US6619203 relates to the inventive rotary tampon printing press, the printing ink with which the engraved roller is coated is supplied by means of an Archimedean screw from the ink collecting trough and guided via the guiding means to the peripheral surface of the engraved roller thereby supplying ink to the engravings. This system is advantageous in that it operates contact-free, in contrast to systems which use ink dispensing rollers or the like. This system is also independent of the height of the engraved roller since the Archimedean screw can supply the printing ink to any desired height.
[009] In present invention tampons are in line to a section of the line with the workpieces which increases the printing quality.
[010] Publication No. US2013000500 relates to a pad printing machine includes a printing plate holder, a printing plate attached on the printing plate holder, a device for inking the printing plate, and a pad configured to lift the ink off the printing plate and transferring the ink to an object to be printed. At least one of the printing plate holder, the device for inking the printing plate and the pad is moveably arranged, with the printing plate being supported for displacement and rotation.
[011] The present invention does not have any laser guided movement. In present invention tampons are in line to a section of the line with the workpieces which increases the printing quality.
[012] Patent No. US5637265 relates to transfer-pad printing composition comprising either a latex or solution coating composition comprising a coating vehicle and a monomeric or polymeric hydroxylated and/or carboxylated surface active wetting agent that is coating compatible with the pad surface such that the coating composition, provided in the shape of a pattern, is precisely imprinted on its surface and the pad can precisely transfer the design to another surface that is receptive to the coating. The process of transfer-pad printing with the composition. Also, articles made by such transfer printing.
[013] The present invention does not using coating on the pad surface and making the pad printing process simple and cost effective.
[014] Publication No. US2013333581 relates to pad printing machine comprising at least one inverted planetary roller threaded drive (12; 24; 36; 48; 60; 62) and application of latter to a pad printing machine.
[015] The present invention does not uses roller and provides simple and cost effective pad printing process.
[016] Publication No. WO9741180 relates to transfer-pad printing aqueous composition comprising effective amounts of a water soluble polymer, an opacifier, and a dispersant and optionally a colorant and/or release agent is provided. The composition is particularly suited for use with silicone rubber transfer-pads to print alphanumeric patterns on curved or spherical surfaces such as opthalmic lenses.
[017] The present invention uses solvent based inks for effective printing.
[018] Publication No. CN207087667 relates to an automatic dial plate anchor clamps that print of clock and watch dial plate, its structure includes the front plate, the rubber pad, back splint, the rotary rod, rotatory line, the pull rod, the fixed block, adjusting screw, place the platform, the connection pad, a pedestal, adjusting screw locates on the fixed block, fixed block and adjusting screw cooperate, adjusting screw is by the screw rod, the screw thread, the nut, the cross socket is constituted, the nut bottom is located to the screw rod, nut and screw rod fixed connection, the screw thread is located on the screw rod, screw rod and as an organic wholeization of screw thread structure, the nut top is located to the cross socket, nut and as an organic wholeization of word socket structure, be equipped with adjusting screw, the length that the staff wants to adjust the handle can have been pulled out adjusting screw, it fixes the handle on the fixed block to press adjusting screw after adjusting, the staff cannot stabilize because of the handle in the rotation not lead to the fact the dislocation of slipping out of the hand, safety to the staff is secure.
[019] The present invention does not use the rotary rod, rotatory line, the pull rod, the fixed block and provides simple, cost effective pad printing device and process.
[020] Patent No. US6550381 relates to transfer pad printing systems, pad printing plates and methods therefor including forming a metal plate having a Rockwell C scale hardness not less than approximately 55 and a thickness between approximately 0.015 inches and approximately 0.020 inches, preferably from a cold rolled strip steel, etching an image on the metal plate and mounting the metal plate on a base plate prior to transferring images therefrom with a transfer pad.
[021] In the present invention, the metal plate having a thickness between approximately 0.195 inches and approximately 0.30 inches.
[022] Patent No. US5806419 relates to pad printing apparatus is provided with a sealed ink cup for the printing of long images having a length greater than the diameter of the ink cup. The ink cup is caused to move lengthwise of the image and the movement of the image transfer pad is in a direction perpendicular to the lengthwise direction of the image.
[023] The present invention is not only doing rectangular printing. The image transfer pad is in a direction parallel to the image.
[024] The article entitled “Pad printing silicon rubber pads or tampons” by Careprint, 2016-2020 talks about the printing pads or Tampon Pads are made of silicone rubber and produced as stamps in a wide array of shapes, hardnesses and qualities. We have around 450+ different shapes and sizes. Our Silicon Pads are available in three different shore a hardness namely soft, medium and hard.
[025] The article entitled “Focus on technology: pad printing” by Joshua Munchow, Quill & Pad - Enfold Theme by Kriesi, 20-12-2015 talks about the relatively modern and widely used process called pad printing. Though in the watch industry, it is often called by names that originate in French and German language: tampon printing (“tampon” is the French word for “pad” or “rubber”) and transfer printing. Pad printing, explained in simplest terms, is very much like a rubber stamp used in scrapbooking or to address envelopes by the hundreds. The idea starts with a rubber pad that picks up ink in order to transfer it onto an object.
[026] Earlier each chrono on the dial had to be printed separately in different lots However, a system and method is needed which can print multiple chronos in a single pad with variable shapes and sizes.
[027] The present invention aims to provide a device for combination pad printing to print multiple chronos with single pad on watch dials. The tampons are in line to a section of the line with the workpieces which increases the printing quality. The invention provides simple, cost effective pad printing device and process.
OBJECTS OF THE INVENTION:
[028] The principal object of the present invention is to provide a device for combination pad printing to print multiple chronos with single pad on watch dials.
[029] Another object of the present invention is to provide combination pad printing which is simple, cost effective and saves time.
SUMMARY OF THE INVENTION:
[030] The present invention relates to a device/ tampons for combinational pad printing to print multifunction chronos with single pad on watch dials. More than one chronos can be print from one pad only. Thus multiple chronos can be print simultaneously which saves time. Figure 1 shows the mounting system and figure 2 shows the tampons.
[031] The printing pad is made up over plates. The mounting system comprises a base plate 1 with the grooves2 to hold the tampons. The tampons 3 are attached and removed to the plate through a mechanical arrangement to the end of the arm. The other end of the arm is attached to the printing head of the machine. The tampon may be at any position. Thus, it is possible to print on the substrate with a different positions in one go. The cliché is inked with a container receiving a liquid medium and transferred with a tampon onto a workpiece. The tampons are in line to a section of the line with the workpieces which increases the printing quality.
[032] The invention provides simple, cost effective pad printing device and process to enhance the printing quality.
[033] The shape and sizes of the tampons can be varied as per the printing requirement.
BREIF DESCRIPTION OF THE DRAWINGS:
[034] It is to be noted, however, that the appended drawings illustrate only typical embodiments of this invention and are therefore not to be considered for limiting of its scope, for the invention may admit to other equally effective embodiments.
[035] Figure 1 shows a device/ tampons for combinational pad printing to print multifunction chronos with single pad on watch dials according to the present invention.
[036] Figure 2 shows the tampons according to the present invention.
DETAILED DESCRIPTION OF THE INVENTION:
[037] The present invention provides a device/ tampons for combinational pad printing to print multifunction chronos with single pad on watch dials. More than one chronos can be print from one pad only. Thus multiple chronos can be print simultaneously which saves time.
[038] The printing pad is made up over plates. The mounting system comprises a base plate with the grooves to hold the tampons. The tampons are attached and removed to the plate through a mechanical arrangement to the end of the arm. The other end of the arm is attached to the printing head of the machine. The tampon may be at any position. Thus, it is possible to print on the substrate with a different positions in one go. The cliché is inked with a container receiving a liquid medium and transferred with a tampon onto a workpiece. The tampons are in line to a section of the line with the workpieces which increases the printing quality.
[039] The invention provides simple, cost effective pad printing device and process to enhance the printing quality.
[040] The shape and sizes of the tampons can be varied as per the printing requirement.
[041] The selection of the holder plate is done as per the position of the chrono, and the tampons are fixed to that holder with the bolt. There after this assembly is fixed to the adopter. This complete assembly of fixed to the head of the pad printing machine, and then three of the tampons are aligned to the axis of the tool (Fig 1 and 2).
[042] There are two or more chronometers in a dial and the number can go up to 4 even. These chronographs are generally been created in a dial by machining the areas deeper than face of the dials. To print those deeper zones, it had a number of setups and they are printed individually. Thus all can be done in one setup, and with any of the depth of the chronometer, which is a huge saving of time for a production. The holder and adopter is made up of aluminum, where as the Tampons are of Silicon.
[043] The process includes following steps:
[044] Step-1: Take up the drawing to see the position of the chronometers.
[045] Step-2: Take out the required holder plate as per the required position of the chronographs.
[046] Step-3: Fix the tampons on the holder plate with the help of Allen bolts.
[047] Step-4: Fix this assembly to the standard adopter of the pad printing machine through a bolt.
[048] Step-5: Fix this assembly to the head of the printing machine.
[049] Step-6: Fix the dial on the machine in the defined tool- already fixed for.
[050] Step 7- Align the pad assembly with the dials such that all the tampons are coing to the center of the chronographs.
[051] Step-8- Fix the cliché plate, put on the ink and take the printing on to the dial from cliché plate.
[052] Step-9: do adjustments as required to suit the requirements.
[053] Numerous modifications and adaptations of the system of the present invention will be apparent to those skilled in the art, and thus it is intended by the appended claims to cover all such modifications and adaptations which fall within the true spirit and scope of this invention.

CLAIMS:WE CLAIM:
1. A system and method for printing multiple chronos with single pad comprises printing pad made up over plates wherein the mounting system comprises a base plate with the grooves to hold the tampons, the tampons are attached and removed to the plate through a mechanical arrangement to the end of the arm, the other end of the arm is attached to the printing head of the machine, the tampon may be at any position, the cliché is inked with a container receiving a liquid medium and transferred with a tampon onto a workpiece, the tampons are in line to a section of the line with the workpieces which increases the printing quality.
2. The system and method for printing multiple chronos with single pad, as claimed in any of the preceding claims wherein the method includes the following steps:
a) See the position of the chronometers.
b) Take out the required holder plate as per the required position of the chronographs.
c) Fix the tampons on the holder plate with the help of Allen bolts.
d) Fix this assembly to the standard adopter of the pad printing machine through a bolt.
e) Fix this assembly to the head of the printing machine.
f) Fix the dial on the machine in the defined tool- already fixed for.
g) Align the pad assembly with the dials such that all the tampons are coing to the center of the chronographs.
h) Fix the cliché plate, put on the ink and take the printing on to the dial from cliché plate.
i) Do adjustments as required to suit the requirements.