CN114030196A - Pad printing rubber head, pad printing equipment and pad printing rubber head processing technology - Google Patents
Pad printing rubber head, pad printing equipment and pad printing rubber head processing technology Download PDFInfo
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- CN114030196A CN114030196A CN202111085048.3A CN202111085048A CN114030196A CN 114030196 A CN114030196 A CN 114030196A CN 202111085048 A CN202111085048 A CN 202111085048A CN 114030196 A CN114030196 A CN 114030196A
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- 238000007649 pad printing Methods 0.000 title claims abstract description 86
- 238000012545 processing Methods 0.000 title claims abstract description 21
- 238000005516 engineering process Methods 0.000 title claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 36
- 238000007639 printing Methods 0.000 claims abstract description 36
- 229920002545 silicone oil Polymers 0.000 claims abstract description 17
- 238000010023 transfer printing Methods 0.000 claims abstract description 14
- 239000003292 glue Substances 0.000 claims description 188
- 239000000243 solution Substances 0.000 claims description 81
- 238000004026 adhesive bonding Methods 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 16
- 230000008569 process Effects 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 11
- 238000005086 pumping Methods 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 8
- 238000004140 cleaning Methods 0.000 claims description 5
- 238000005488 sandblasting Methods 0.000 claims description 5
- 238000007493 shaping process Methods 0.000 claims description 5
- 239000006004 Quartz sand Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims description 3
- 238000007664 blowing Methods 0.000 claims description 2
- 238000004080 punching Methods 0.000 claims 1
- 238000004513 sizing Methods 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 9
- 230000003749 cleanliness Effects 0.000 abstract description 3
- 239000011521 glass Substances 0.000 description 13
- 230000009467 reduction Effects 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
- B29C69/001—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore a shaping technique combined with cutting, e.g. in parts or slices combined with rearranging and joining the cut parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/22—Component parts, details or accessories; Auxiliary operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/22—Component parts, details or accessories; Auxiliary operations
- B29C39/42—Casting under special conditions, e.g. vacuum
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F17/00—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
- B41F17/001—Pad printing apparatus or machines
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Printing Plates And Materials Therefor (AREA)
Abstract
The invention relates to the technical field of pad printing rubber heads, in particular to a pad printing rubber head, pad printing equipment and a pad printing rubber head processing technology. According to the invention, by controlling the proportion of the first sizing material, the silicone oil and the second sizing material, the pad printing rubber head achieves the optimal softness, the effective adhesion of the printing ink is ensured, the pad printing rubber head can restore to the original shape after being used, the pad printing rubber head is ensured to be pressed and deformed and gradually fit with the curved surface edge of the curved surface screen, and the transfer printing effect is improved; the inner wall of the mold is cleaned, the cleanliness in the mold is improved, the inner wall of the rubber head mold is subjected to rough treatment, the surface area of the formed pad printing rubber head is increased, the formed bulge can further improve ink adhesion, and the accuracy of pad printing and the saturation of the ink are further improved.
Description
Technical Field
The invention relates to the technical field of pad printing rubber heads, in particular to a pad printing rubber head, pad printing equipment and a pad printing rubber head processing technology.
Background
The electronic products such as the present new mobile phone and the like adopt a 3D glass panel as a screen panel. The 3D glass panel refers to an area with an arc-shaped surface in the center of glass, and the periphery of the glass is in arc transition, namely, the edge of the glass is subjected to radian processing on the basis of arc glass.
At present, 3D glass panels is processing into the in-process of screen, need the regional printing of ink pattern outside the screen main part, but, traditional bat printing rubber head is only applicable to the bat printing process of flat-plate work piece, and traditional bat printing rubber head is not laminated well with the curved surface edge during the bat printing, if use it when the curved surface edge, and printing ink can't effectively be attached to on the bat printing rubber head, can not be with the printing ink pattern on the 3D glass panels of complete bat printing.
Disclosure of Invention
The invention aims to provide a pad printing rubber head, pad printing equipment and a pad printing rubber head processing technology which can ensure effective adhesion of printing ink, ensure that a pad printing rubber head deforms under pressure and gradually fits the curved surface edge of a curved surface screen, and improve pad printing accuracy and ink saturation.
In order to solve the technical problems, the technical scheme adopted by the invention for solving the technical problems is as follows:
a transfer printing rubber head processing technology comprises the following steps:
preparing mixed glue solution according to the proportion, and uniformly stirring the first glue material, the silicone oil and the second glue material to obtain the mixed glue solution; after cleaning the rubber head mould, carrying out rough treatment on the inner wall of the rubber head mould, and covering the cover plate on the rubber head mould; and pouring the mixed glue solution into a glue head mould, standing at room temperature for 2-6 hours, and taking out.
Further, the weight ratio of the first sizing material to the silicone oil to the second sizing material is 10:1:1.87, the mixed glue solution after stirring and mixing for 10-15 minutes is subjected to exhaust and vacuum pumping, the vacuum degree is-800 mbar, and the exhaust and vacuum pumping time is controlled to be 5-8 minutes, so that the mixed glue solution is prevented from being solidified.
Further, pouring the vacuumized mixed glue solution into a glue head mold, vacuumizing again, wherein the vacuum degree is-800 to-1100 mbar, the vacuumizing time is controlled to be 8-12 minutes, and keeping the pressure for 5 seconds after vacuumizing; and after the vacuumizing is finished, filling the mixed glue solution into a glue head mold, and continuing to perform vacuum pressure maintaining for 5 seconds.
Further, from the width direction of gluing first mould when placing the apron on the gluey first mould of completion encapsulating, place apron one end and slowly paste on mixing the glue solution surface on the bottom surface of gluing first mould, make the bat printing after the shaping glue on the first bottom surface form deckle edge through pressing the cover plate, carry out die-cut deckle edge to the bat printing head of taking out.
Further, after the pad printing rubber head is placed and molded, the cover plate is taken down from the rubber head mold, the burr on the periphery of the pad printing rubber head is pulled to enable the pad printing rubber head to form a demolding gap between the pad printing rubber head and the inner wall of the rubber head mold, and the demolding gap is blown to enable the pad printing rubber head to be separated from the inner wall of the rubber head mold, so that mold taking operation of the pad printing rubber head is completed.
Further, the inner wall of the rubber head mould is subjected to rough treatment, and the method comprises the following steps: blow to gluing first mould inner wall and bottom surface and be used for getting rid of surface impurity, heat gluing first mould, adopt compressed air to blow quartz sand and carry out sand blasting to gluing first mould inner wall, evenly form a plurality of recesses in order to increase the surface area of the bat printing of shaping gluey head on gluing first mould inner wall.
Further, the mixed glue solution is filled into the glue head mould, and the method comprises the following steps: and (3) adopting glue injection equipment to fill the mixed glue solution from the bottom of the glue head mould, lifting the glue filling position of the mixed glue solution along with the rising of the liquid level of the mixed glue solution in the glue head mould, wherein the glue filling position of the mixed glue solution is slightly lower than the liquid level of the mixed glue solution in the glue head mould until the mixed glue solution is filled in the glue head mould.
Further, still include:
when the glue pouring speed of the mixed glue solution is 4.5g/s, the glue pouring vacuum degree is-890 mbar, the lifting jump height of the glue pouring position of the mixed glue solution is 4.5mm, and the processing speed is 0.33mm/s, the Shore hardness of the formed pad printing glue head is 40 degrees;
when the glue filling speed of the mixed glue solution is 6g/s, the glue filling vacuum degree is-1100 mbar, the lifting jump height of the glue filling position of the mixed glue solution is 5.3mm, and the processing speed is 0.38m/s, the Shore hardness of the formed transfer printing glue head is 44 degrees;
the glue filling speed of the mixed glue solution is 5g/s, the glue filling vacuum degree is-950 mbar, the lifting jump height of the glue filling position of the mixed glue solution is 5mm, and the Shore hardness of the formed transfer printing glue head is 42 degrees when the processing speed is 0.35 mm/s.
The invention also comprises a pad printing rubber head which comprises a rubber head body, wherein the rubber head body comprises a bottom plate, a supporting surface, a deformation surface, an ink taking surface and a positioning surface, the bottom plate is arranged on the bottom surface of the rubber head body, the positioning surface is arranged on the top surface of the rubber head body, the positioning surface is of an arc surface structure, the ink taking surface is arranged between the deformation surface and the positioning surface, the deformation surface is connected with the supporting surface, the supporting surface and the bottom plate are positioned in a plane of 80-85 degrees, the deformation surface and the bottom plate are positioned in a plane of 65-75 degrees, and the Shore hardness of the ink taking surface, the deformation surface and the positioning surface is 40-44 degrees.
The invention also comprises a pad printing device which comprises any one of the pad printing rubber heads.
The invention has the beneficial effects that:
according to the invention, by controlling the proportion of the first sizing material, the silicone oil and the second sizing material, the pad printing rubber head achieves the optimal softness, the effective adhesion of the printing ink is ensured, the pad printing rubber head can restore to the original shape after being used, the pad printing rubber head is ensured to be pressed and deformed and gradually fit with the curved surface edge of the curved surface screen, and the transfer printing effect is improved; the inner wall of the mold is cleaned, the cleanliness in the mold is improved, the inner wall of the rubber head mold is subjected to rough treatment, the surface area of the formed pad printing rubber head is increased, the formed bulge can further improve ink adhesion, and the accuracy of pad printing and the saturation of the ink are further improved.
Drawings
FIG. 1 is a schematic view of a pad printing head process of the present invention.
FIG. 2 is a schematic view of a pad printing head of the present invention.
The reference numbers in the figures illustrate: 1. pad printing the rubber head; 2. a base plate; 3. a support surface; 4. a deformation surface; 5. taking an ink surface; 6. positioning the surface;
Detailed Description
The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.
Example 1
Referring to fig. 1, a process for manufacturing a pad printing head includes the following steps:
preparing mixed glue solution according to the proportion, and uniformly stirring the first glue material, the silicone oil and the second glue material to obtain the mixed glue solution; after cleaning the rubber head mould, carrying out rough treatment on the inner wall of the rubber head mould, and covering the cover plate on the rubber head mould; and pouring the mixed glue solution into a glue head mould, standing at room temperature for 2 hours, and taking out.
Example 2
Preparing mixed glue solution according to the proportion, and uniformly stirring the first glue material, the silicone oil and the second glue material to obtain the mixed glue solution; after cleaning the rubber head mould, carrying out rough treatment on the inner wall of the rubber head mould, and covering the cover plate on the rubber head mould; and pouring the mixed glue solution into a glue head mould, standing for 4 hours at room temperature, and taking out.
Example 3
Preparing mixed glue solution according to the proportion, and uniformly stirring the first glue material, the silicone oil and the second glue material to obtain the mixed glue solution; after cleaning the rubber head mould, carrying out rough treatment on the inner wall of the rubber head mould, and covering the cover plate on the rubber head mould; and pouring the mixed glue solution into a glue head mould, standing at room temperature for 6 hours, and taking out.
According to the invention, by controlling the proportion of the first sizing material, the silicone oil and the second sizing material, the pad printing rubber head achieves the optimal softness, the effective adhesion of the printing ink is ensured, the pad printing rubber head can restore to the original shape after being used, the pad printing rubber head is ensured to be pressed and deformed and gradually fit with the curved surface edge of the curved surface screen, and the transfer printing effect is improved; the inner wall of the mold is cleaned, the cleanliness in the mold is improved, the inner wall of the rubber head mold is subjected to rough treatment, the surface area of the formed pad printing rubber head is increased, the formed bulge can further improve ink adhesion, and the accuracy of pad printing and the saturation of the ink are further improved.
The mixed glue solution comprises, by weight, 80-95 parts of a first glue material, 5-12 parts of silicone oil and 15-25 parts of a second glue material, wherein the first glue material is RTV-3132-A, the second glue material is RTV-3132-B, and the silicone oil is CTB 760-001.
Specifically, the first glue material is 80 parts, the silicone oil is 12 parts, and the second glue material is 15 parts, the mixed glue solution after stirring and mixing for 10 minutes is subjected to exhaust and vacuum pumping, the vacuum degree is-800 mbar, and the exhaust and vacuum pumping time is controlled to be 5 minutes, so that the mixed glue solution is prevented from being solidified.
95 parts of first glue material, 5 parts of silicone oil and 25 parts of second glue material, exhausting and vacuumizing the mixed glue solution after stirring and mixing for 15 minutes, wherein the vacuum degree is-800 mbar, and the exhausting and vacuumizing time is controlled to be 8 minutes, so that the mixed glue solution is prevented from being solidified.
90 parts of first glue material, 8 parts of silicone oil and 20 parts of second glue material, exhausting and vacuumizing the mixed glue solution after stirring and mixing for 14 minutes, wherein the vacuum degree is-800 mbar, and the exhausting and vacuumizing time is controlled to be 7 minutes, so that the mixed glue solution is prevented from being solidified.
The preferable scheme of the embodiment is that the weight ratio of the first sizing material to the silicone oil to the second sizing material is 10:1:1.87, the mixed sizing material after stirring and mixing for 10-15 minutes is subjected to exhaust and vacuum pumping, the vacuum degree is-800 mbar, and the exhaust and vacuum pumping time is controlled to be 5-8 minutes, so that the mixed sizing material is prevented from being solidified.
Specifically, 1100g of first rubber material, 145g of silicone oil and 100g of second rubber material are adopted to prepare a mixed rubber solution.
Not only can prolong through above-mentioned ratio the life of gluing the head, still can guarantee simultaneously that printing ink adheres to and glues first surface, guarantees the bat printing effect, and silicon oil can make it softens to glue the head, can make through above-mentioned ratio glue the shore hardness of head and reach 42 +/-2 to this guarantees that the bat printing glues the head and under certain support and slight deformation, has effectively improved the life of bat printing and glues the head, still can guarantee that the surface of gluing black portion and the medial surface at the arc edge of 3D glass panels closely laminate, and the printing ink pattern on gluing black portion completely shifts to the surface at the arc edge of 3D glass panels, has improved the work efficiency of printing.
The 42 +/-2 HC transfer printing rubber head can ensure that the transferred patterns are complete and the screen dots are clear, meet the design requirements of the patterns at the edge of the screen, greatly improve the transfer printing quality of the printing ink and obtain the results by comparing the transfer printing test: when the hardness of the pad printing rubber head is lower than 40HC, the deformation of the rubber head is large, the screen edge printing is uneven, the pad printing is more obvious when the pad printing is carried out on a curved surface, the pad printing is not suitable for the curved surface edge printing of curved glass, and the service life of the pad printing rubber head is shortened by half due to the reduction of the hardness.
Pouring the vacuumized mixed glue solution into a glue head mold, vacuumizing again, controlling the vacuum degree to be-800 to-1100 mbar and the vacuumizing time to be 8-12 minutes, and maintaining the pressure for 5 seconds after vacuumizing is finished; and after the vacuumizing is finished, filling the mixed glue solution into a glue head mold, and continuing to perform vacuum pressure maintaining for 5 seconds.
Pouring the vacuumized mixed glue solution into a glue head mold, vacuumizing again, wherein the vacuum degree is-950 mbar, the vacuumizing time is controlled to be 10 minutes, and the pressure is maintained for 5 seconds after the vacuumizing is finished; and after the vacuumizing is finished, filling the mixed glue solution into a glue head mold, and continuing to perform vacuum pressure maintaining for 5 seconds.
The rubber head mould and the mixed glue solution are vacuumized, so that bubbles in the area can be effectively removed, and the forming effect of the pad printing rubber head is ensured.
From the width direction of gluing first mould when placing the apron on the gluey first mould of completion encapsulating originated, place apron one end on the bottom surface of gluing first mould and slowly paste on mixing the glue solution surface, make the bat printing after the shaping glue on the first bottom surface and form deckle edge through pressing the cover plate, carry out die-cut deckle edge to the bat printing that takes out and glue the head.
After the pad printing rubber head is placed and molded, the cover plate is taken down from the rubber head mold, the burr on the periphery of the pad printing rubber head is pulled to form a demolding gap between the pad printing rubber head and the inner wall of the rubber head mold, and the demolding gap is blown to separate the pad printing rubber head from the inner wall of the rubber head mold so as to finish the mold taking operation of the pad printing rubber head.
Specifically, burrs are added on the pad printing rubber head, and then in the process of cutting, the mold taking difficulty can be reduced, the forming effect of the pad printing rubber head after mold taking can be guaranteed, the inner wall is separated from the pad printing rubber head through air blowing, and the mold taking difficulty is increased by the protrusions and the grooves.
The inner wall of the rubber head mould is subjected to rough treatment, and the method comprises the following steps: blow to gluing first mould inner wall and bottom surface and be used for getting rid of surface impurity, heat gluing first mould, adopt compressed air to blow quartz sand and carry out sand blasting to gluing first mould inner wall, evenly form a plurality of recesses in order to increase the surface area of the bat printing of shaping gluey head on gluing first mould inner wall.
According to the invention, the sand blasting process is specifically applied to the rubber head mould, the inner wall of the mould is subjected to sand blasting treatment, so that a plurality of grooves are uniformly formed on the inner wall of the mould, the health of the rubber head mould is guaranteed without chemical treatment, the surface area of the formed pad printing rubber head is increased, the formed bulge can further improve ink adhesion, and the ink pad printing effect is further improved.
Pouring the mixed glue solution into a glue head mould, comprising the following steps: and (3) adopting glue injection equipment to fill the mixed glue solution from the bottom of the glue head mould, lifting the glue filling position of the mixed glue solution along with the rising of the liquid level of the mixed glue solution in the glue head mould, wherein the glue filling position of the mixed glue solution is slightly lower than the liquid level of the mixed glue solution in the glue head mould until the mixed glue solution is filled in the glue head mould.
The glue filling position of the mixed glue solution is slightly lower than the liquid level of the mixed glue solution in the glue head die, so that the glue filling position of the mixed glue solution is always below the liquid level during glue filling, bubbles generated by the pad printing glue head are further avoided, and the forming effect is ensured.
Further comprising:
when the glue pouring speed of the mixed glue solution is 4.5g/s, the glue pouring vacuum degree is-890 mbar, the lifting jump height of the glue pouring position of the mixed glue solution is 4.5mm, and the processing speed is 0.33mm/s, the Shore hardness of the formed pad printing glue head is 40;
when the glue filling speed of the mixed glue solution is 6g/s, the glue filling vacuum degree is-1100 mbar, the lifting jump height of the glue filling position of the mixed glue solution is 5.3mm, and the processing speed is 0.38m/s, the Shore hardness of the formed transfer printing glue head is 44
And when the glue pouring speed of the mixed glue solution is 5g/s, the glue pouring vacuum degree is-950 mbar, the lifting jump height of the glue pouring position of the mixed glue solution is 5mm, and the processing speed is 0.35mm/s, the Shore hardness of the formed transfer printing glue head is 42.
Referring to fig. 2, the invention further comprises a pad printing rubber head, which comprises a rubber head body, wherein the rubber head body comprises a bottom plate, a supporting surface, a deforming surface, an ink taking surface and a positioning surface, the bottom plate is arranged on the bottom surface of the rubber head body, the positioning surface is arranged on the top surface of the rubber head body, the positioning surface is of an arc surface structure, the ink taking surface is arranged between the deforming surface and the positioning surface, the deforming surface is connected with the supporting surface, the supporting surface and the bottom plate are arranged in a plane of 80-85 degrees, the deforming surface and the bottom plate are arranged in a plane of 65-75 degrees, and the Shore hardness of the ink taking surface, the deforming surface and the positioning surface is 40-44 degrees.
Specifically, according to a preferable scheme of the invention, the supporting surface and the plane of the bottom plate are 72 degrees, the deformation surface and the plane of the bottom plate are 70 degrees, and the Shore hardness of the ink taking surface, the deformation surface and the positioning surface is 42 degrees.
The pad printing rubber head can generate controllable deformation due to the rubber head when ink is taken, ink to be printed can be accurately transferred to the ink taking surface of the rubber head according to process requirements, and the positioning surface can be used for accurately positioning, so that the rubber head can effectively deform in a partitioning manner corresponding to the curved surface edge of the curved surface screen, and the accuracy of pad printing and the saturation of the ink are improved.
The utility model provides a bat printing equipment, bat printing equipment includes foretell bat printing and glues the head, adopts foretell bat printing to glue the head and makes this bat printing equipment can carry out the bat printing operation to curved surface glass, guarantees curved surface glass's printing effect, and the yields is high, reduction in production cost.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.
Claims (10)
1. The transfer printing rubber head processing technology is characterized by comprising the following steps:
preparing mixed glue solution according to the proportion, and uniformly stirring the first glue material, the silicone oil and the second glue material to obtain the mixed glue solution; after cleaning the rubber head mould, carrying out rough treatment on the inner wall of the rubber head mould, and covering the cover plate on the rubber head mould; and pouring the mixed glue solution into a glue head mould, standing at room temperature for 2-6 hours, and taking out.
2. The process for processing the pad printing head as claimed in claim 1, wherein the weight ratio of the first rubber material to the silicone oil to the second rubber material is 10:1:1.87, the mixed rubber solution after stirring and mixing for 10-15 minutes is subjected to exhaust and vacuum pumping, the vacuum degree is-800 mbar, and the exhaust and vacuum pumping time is controlled to be 5-8 minutes, so that the mixed rubber solution is prevented from being solidified.
3. The process for processing the pad printing rubber head according to claim 1, wherein the vacuumized mixed rubber solution is poured into a rubber head mold, the vacuum degree is-800 to-1100 mbar, the vacuum time is controlled to be 8 to 12 minutes, and the pressure is maintained for 5 seconds after the vacuum pumping is finished; and after the vacuumizing is finished, filling the mixed glue solution into a glue head mold, and continuing to perform vacuum pressure maintaining for 5 seconds.
4. The pad printing head processing technology according to claim 1, wherein when the cover plate is placed on the glue head die after the glue pouring, one end of the cover plate is placed on the bottom surface of the glue head die from the width direction of the glue head die and slowly pasted on the surface of the mixed glue solution, burrs are formed on the bottom surface of the formed pad printing head by pressing the cover plate, and the taken pad printing head is subjected to punching burrs.
5. The process of claim 4, wherein after the pad printing head is placed and molded, the cover plate is removed from the head mold, a mold release gap is formed between the pad printing head and the inner wall of the head mold by pulling the burrs around the pad printing head, and the mold removal operation of the pad printing head is completed by blowing air into the mold release gap to separate the pad printing head from the inner wall of the head mold.
6. The pad printing process of rubber head according to claim 1, wherein the inner wall of the rubber head mould is roughened, comprising the following steps: blow to gluing first mould inner wall and bottom surface and be used for getting rid of surface impurity, heat gluing first mould, adopt compressed air to blow quartz sand and carry out sand blasting to gluing first mould inner wall, evenly form a plurality of recesses in order to increase the surface area of the bat printing of shaping gluey head on gluing first mould inner wall.
7. The process for manufacturing a pad printing head according to claim 1, wherein the step of pouring the mixed glue solution into the glue head mold comprises the following steps: and (3) adopting glue injection equipment to fill the mixed glue solution from the bottom of the glue head mould, lifting the glue filling position of the mixed glue solution along with the rising of the liquid level of the mixed glue solution in the glue head mould, wherein the glue filling position of the mixed glue solution is slightly lower than the liquid level of the mixed glue solution in the glue head mould until the mixed glue solution is filled in the glue head mould.
8. The pad printing process of claim 1, further comprising:
when the glue pouring speed of the mixed glue solution is 4.5g/s, the glue pouring vacuum degree is-890 mbar, the lifting jump height of the glue pouring position of the mixed glue solution is 4.5mm, and the processing speed is 0.33mm/s, the Shore hardness of the formed pad printing glue head is 40 degrees;
when the glue filling speed of the mixed glue solution is 6g/s, the glue filling vacuum degree is-1100 mbar, the lifting jump height of the glue filling position of the mixed glue solution is 5.3mm, and the processing speed is 0.38m/s, the Shore hardness of the formed transfer printing glue head is 44 degrees;
the glue filling speed of the mixed glue solution is 5g/s, the glue filling vacuum degree is-950 mbar, the lifting jump height of the glue filling position of the mixed glue solution is 5mm, and the Shore hardness of the formed transfer printing glue head is 42 degrees when the processing speed is 0.35 mm/s.
9. The pad printing rubber head is characterized by comprising a rubber head body, wherein the rubber head body comprises a bottom plate, a supporting surface, a deformation surface, an ink taking surface and a positioning surface, the bottom plate is arranged on the bottom surface of the rubber head body, the positioning surface is arranged on the top surface of the rubber head body, the positioning surface is of an arc surface structure, the ink taking surface is arranged between the deformation surface and the positioning surface, the deformation surface is connected with the supporting surface, the supporting surface and the bottom plate are positioned in a plane of 80-85 degrees, the deformation surface and the bottom plate are positioned in a plane of 65-75 degrees, and the Shore hardness of the ink taking surface, the deformation surface and the positioning surface is 40-44 degrees.
10. A pad printing apparatus, characterized in that it comprises a pad printing head according to any one of claims 7 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111085048.3A CN114030196A (en) | 2021-09-16 | 2021-09-16 | Pad printing rubber head, pad printing equipment and pad printing rubber head processing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115946463A (en) * | 2023-01-30 | 2023-04-11 | 歌尔股份有限公司 | UV rendition technology and UV rendition frock |
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