CN112372907A - Rubber molding and vulcanizing process integrating in-mold vulcanization, transfer and totem - Google Patents
Rubber molding and vulcanizing process integrating in-mold vulcanization, transfer and totem Download PDFInfo
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- CN112372907A CN112372907A CN202011149106.XA CN202011149106A CN112372907A CN 112372907 A CN112372907 A CN 112372907A CN 202011149106 A CN202011149106 A CN 202011149106A CN 112372907 A CN112372907 A CN 112372907A
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- transfer printing
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- totem
- rubber
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- 238000012546 transfer Methods 0.000 title claims abstract description 62
- 238000004073 vulcanization Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000010068 moulding (rubber) Methods 0.000 title claims abstract description 19
- 229920001971 elastomer Polymers 0.000 claims abstract description 71
- 238000010023 transfer printing Methods 0.000 claims abstract description 67
- 239000003086 colorant Substances 0.000 claims abstract description 21
- 239000010410 layer Substances 0.000 claims description 56
- 239000011241 protective layer Substances 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 9
- 229920002725 thermoplastic elastomer Polymers 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 4
- 125000000524 functional group Chemical group 0.000 claims description 3
- 230000003111 delayed effect Effects 0.000 claims description 2
- 238000004132 cross linking Methods 0.000 claims 1
- 238000005034 decoration Methods 0.000 description 7
- 239000012790 adhesive layer Substances 0.000 description 6
- 239000012528 membrane Substances 0.000 description 6
- 239000002994 raw material Substances 0.000 description 6
- 238000005253 cladding Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000013518 transcription Methods 0.000 description 1
- 230000035897 transcription Effects 0.000 description 1
- 238000001721 transfer moulding Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
Images
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
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C37/0025—Applying surface layers, e.g. coatings, decorative layers, printed layers, to articles during shaping, e.g. in-mould printing
- B29C37/0028—In-mould coating, e.g. by introducing the coating material into the mould after forming the article
-
- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/007—Tempering units for temperature control of moulds or cores, e.g. comprising heat exchangers, controlled valves, temperature-controlled circuits for fluids
-
- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
-
- 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
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C37/0025—Applying surface layers, e.g. coatings, decorative layers, printed layers, to articles during shaping, e.g. in-mould printing
- B29C37/0028—In-mould coating, e.g. by introducing the coating material into the mould after forming the article
- B29C2037/0046—In-mould printing, in-mould transfer printing
-
- 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
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C2037/90—Measuring, controlling or regulating
-
- 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
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C2037/94—Safety devices
Abstract
The invention discloses an in-mold vulcanization transfer totem integrated rubber molding vulcanizing process, which comprises the following steps of 1: providing a heat transfer printing upper die and a heat transfer printing lower die arranged below the heat transfer printing upper die; step 2: fixing rubber in a die cavity of the thermal transfer printing lower die; and step 3: a release transfer printing film is arranged between the upper heat transfer printing die and the lower heat transfer printing die, and transfer printing colors and/or totems are arranged on the lower surface of the release transfer printing film; and 4, step 4: closing and vulcanizing the upper thermal transfer printing die and the lower thermal transfer printing die, and performing delay die opening and pressure maintaining to transfer the transfer color and/or totem on the lower surface of the release type transfer printing film onto rubber; and 5: the rubber is taken out after the die is opened, the release transfer film is torn off, the realization of various colors and/or totems can be realized at one time, the feasibility of realizing bright colors of products is greatly improved, the colors and/or totems on the surface of the rubber are durable, the release transfer film is not easy to fall off, and the competitiveness of the products is greatly improved.
Description
Technical Field
The invention relates to the technical field of in-mold transfer molding of rubber finished products, in particular to an in-mold vulcanization transfer totem integrated rubber molding vulcanizing process.
Background
The rubber material itself has a very large number of properties, which make rubber very suitable as a decorative or protective layer for the appearance of objects in terms of pure functionality, these properties including: micro-adsorption, thermal stability, chemical stability, high mechanical strength, insolubility in water and any solvent, high elasticity, good softness, ductility, light transmittance, no yellowing, etc.
However, the rubber products on the market have limited appearance expression ways, and the common rubber products are all single colors, so that the products are relatively delicate and the products can be printed on the additional surface by screen printing or two-color composition, but the appearance of the products is relatively common and monotonous, and the attempts to paint, print and the like on the rubber surface are also made, but because of the characteristics of the rubber, the decorative layer and the coating which are manufactured on the rubber surface in the ways are not only not durable, but also are easy to fall off.
Therefore, almost clear color on the appearance of the rubber product on the market is monochrome or large-area color blocks, and fine patterns and color changes cannot be seen, but the current 3C device or wearable device commodity belongs to personalized products, even needs to be matched with different styles of individuals, and the requirement of consumers on the appearance of the product is continuously improved.
However, due to the material characteristics of rubber, the conventional rubber products lack the appearance of colorful and various touch feeling, and the surface has no various colors and touch feeling, and color coloring is not possible, but after all, rubber is very suitable for being used as a decorative layer or a protective layer of the appearance of an article in terms of function, so that there is a strong need to develop a rubber appearance decoration technology capable of making the rubber surface appear colorful, touch feeling or texture, so that the rubber product not only has functionality but also has beautiful appearance.
Disclosure of Invention
The invention provides an in-mold vulcanization transfer totem integrated rubber molding vulcanizing process, wherein transfer colors and/or totems are arranged on the lower surface of a release transfer film, rubber is arranged in a mold cavity of a lower heat transfer mold, after an upper heat transfer mold and the lower heat transfer mold are closed, the rubber is fused with the transfer colors and/or the totems on the release transfer film into a whole in the vulcanization molding process under the operation of specific pressure, temperature, time delay and other conditions, the mold is opened after a rubber raw material reaches a set time delay mold opening time, the release transfer film is peeled from a rubber body formed by the rubber raw material, and the colors and/or the totems carried on the release transfer film are transferred to the rubber body. Through effectual tensile properties, the adhesion and the cladding nature that has promoted rubber and colour and/or totem of in-mould thermal transfer printing, the number of times that has reduced relevant processing procedure and has reduced the restriction of appearance design, can once reach the realization of multiple colour and/or totem, great promotion realizes the bright-colored feasibility of product colour for the colour and/or totem on rubber surface not only is durable and be difficult to drop, has improved the competitiveness of product by a wide margin.
The technical problem to be solved by the invention is realized by the following technical scheme:
in order to solve the technical problem, the invention provides an in-mold vulcanization transfer totem integrated rubber molding vulcanizing process, which comprises the following steps:
step 1: providing a heat transfer printing upper die and a heat transfer printing lower die arranged below the heat transfer printing upper die;
step 2: fixing rubber in a die cavity of the thermal transfer printing lower die;
and step 3: a release transfer printing film is arranged between the upper heat transfer printing die and the lower heat transfer printing die, and transfer printing colors and/or totems are arranged on the lower surface of the release transfer printing film;
and 4, step 4: closing and vulcanizing the upper thermal transfer printing die and the lower thermal transfer printing die, and performing delay die opening and pressure maintaining to transfer the transfer color and/or totem on the lower surface of the release type transfer printing film onto rubber;
and 5: and (5) taking out the rubber and tearing off the release transfer printing film after opening the die.
Furthermore, the time for delaying the mold opening is 80-150 seconds.
Further, the pressure holding pressure is 120kg-180 kg.
Further, the high-temperature series vulcanization temperature is 175-195 ℃, and the low-temperature series vulcanization temperature is 100-120 ℃.
Further, from type rendition membrane including from the type layer, be formed with the protective layer on the type layer, be formed with the decorative layer on the protective layer, be formed with the adhesion layer on the decorative layer, draw the sublayer on the adhesion layer.
Further, the adhesion layer comprises a thermoplastic elastomer material, and the primer layer comprises functional groups similar to the thermoplastic elastomer material and the rubber material respectively, so that a bridging reaction can be provided between the adhesion layer and the rubber.
Furthermore, a plurality of positioning columns are arranged on the lower heat transfer printing die, and through holes corresponding to the plurality of positioning columns are formed in the release type transfer printing film.
Furthermore, the tail end of the positioning column is provided with an inclined guide block, and a step is formed between the inclined guide block and the positioning column.
Further, the thermal transfer lower die is provided with a temperature detection device.
Further, the temperature detection device is connected with an alarm.
The invention has the following beneficial effects:
the lower surface of the release type transfer printing film is provided with transfer colors and/or totems, the rubber is arranged in a mold cavity of the lower heat transfer printing film, after the upper heat transfer printing mold and the lower heat transfer printing mold are closed, the rubber is simultaneously fused with the transfer colors and/or the totems on the release type transfer printing film into a whole in the vulcanization molding process under the operation of specific pressure, temperature, time delay and other conditions, the mold is opened after the rubber raw material reaches the set time delay mold opening time, the release type transfer printing film is peeled off from the rubber body formed by the rubber raw material, and the colors and/or the totems carried on the release type transfer printing film are transferred to the rubber body. Through effectual tensile properties, the adhesion and the cladding nature that has promoted rubber and colour and/or totem of in-mould thermal transfer printing, the number of times that has reduced relevant processing procedure and has reduced the restriction of appearance design, can once reach the realization of multiple colour and/or totem, great promotion realizes the bright-colored feasibility of product colour for the colour and/or totem on rubber surface not only is durable and be difficult to drop, has improved the competitiveness of product by a wide margin.
The release transfer printing film comprises a release layer, a protective layer is formed on the release layer, a decorative layer is formed on the protective layer, a bonding layer is formed on the decorative layer, and a primer layer is coated on the bonding layer. The protective layer is used as a protective outer layer to effectively protect the decorative layer from being damaged by the external environment and ensure durability, the decorative layer is used for forming various colors and patterns, the adhesive layer is preferably an adhesive containing thermoplastic high-elasticity material components and used for being jointed with the rubber body, but in order to promote good adhesion effect of the adhesive layer on the rubber body, an primer layer is continuously coated on the adhesive layer, and after the primer layer is cured, the adhesion effect of the rubber body is improved.
Drawings
FIG. 1 is a schematic structural diagram of an in-mold vulcanization, transfer and totem-integrated rubber molding and vulcanizing process provided by the invention.
Fig. 2 is a schematic structural view of the release transfer film.
FIG. 3 is a schematic structural diagram of another in-mold vulcanization transfer totem-integrated rubber molding vulcanizing process provided by the invention.
Fig. 4 is an enlarged view of a portion a in fig. 3.
Detailed Description
The present invention will be described in detail with reference to examples, which are only preferred embodiments of the present invention and are not intended to limit the present invention.
Referring to fig. 1, the present invention provides an in-mold vulcanization, transcription and totem integrated rubber molding and vulcanizing process, which includes the following steps:
step 1: providing an upper heat transfer printing die 1 and a lower heat transfer printing die 2 arranged below the upper heat transfer printing die 1;
step 2: fixing rubber 100 in a cavity of the lower thermal transfer printing mold 2;
and step 3: a release transfer film 3 is arranged between the upper heat transfer printing die 1 and the lower heat transfer printing die 2, and transfer colors and/or totems are arranged on the lower surface of the release transfer film 3;
and 4, step 4: closing and vulcanizing the upper thermal transfer printing mold 1 and the lower thermal transfer printing mold 2, and performing delayed mold opening and pressure maintaining to transfer the transfer color and/or totem on the lower surface of the release type transfer printing film 3 onto the rubber 100;
and 5: and taking out the rubber 100 after opening the die and tearing off the release transfer printing film 3.
Because the lower surface of the release transfer film 3 is provided with transfer colors and/or totems, the rubber 100 is arranged in a mold cavity of the lower heat transfer film 2, after the upper heat transfer film 1 and the lower heat transfer film 2 are closed, under the operation of specific pressure, temperature, time delay and other conditions, the rubber 100 is simultaneously fused with the transfer colors and/or the totems on the release transfer film 3 into a whole in the vulcanization molding process, the mold is opened after the raw material of the rubber 100 reaches the set time delay mold opening time, the release transfer film 3 is peeled from the rubber 100 formed by the raw material of the rubber 100, and the colors and/or the totems carried on the release transfer film 3 are transferred to the rubber 100. Through the effectual stretchability, the adhesion and the cladding nature that have promoted rubber 100 and colour and/or totem of in-mould thermal transfer printing, reduced the number of times of relevant processing procedure and reduced the restriction of appearance design, can once reach the realization of multiple colour and/or totem, great promotion realizes the bright-colored feasibility of product colour for the colour and/or totem on rubber 100 surface not only is durable and be difficult to drop, has improved the competitiveness of product by a wide margin.
Furthermore, the time of delaying the mold opening is 80-150 seconds, the pressure maintaining pressure is 120-180 kg, the vulcanizing temperature of the high-temperature series is 175-195 ℃, and the vulcanizing temperature of the low-temperature series is 100-120 ℃ so as to achieve the best effect.
Referring to fig. 1 and 2, further, the release transfer film 3 includes a release layer 31, a protective layer 32 is formed on the release layer 31, a decoration layer 33 is formed on the protective layer 32, an adhesion layer 34 is formed on the decoration layer 33, and an adhesion layer 35 is coated on the adhesion layer 34. The protective layer 32 serves as a protective outer layer to effectively protect the decorative layer 33 from the external environment and ensure durability, the decorative layer 33 is used to form various colors and patterns, the adhesive layer 34 preferably comprises an adhesive with thermoplastic high-elasticity material components for bonding with the rubber 100, but in order to promote good adhesion of the adhesive layer 34 to the rubber 100, the adhesive layer 34 is continuously coated with an primer layer 35, and after the primer layer 35 is cured, the adhesion of the rubber 100 is improved.
Further, the decoration layer 33 includes an ink layer for forming various colors and patterns and a metal layer for forming a special decoration pattern with complicated and fine content or a decoration pattern simulating the appearance or special texture of a specific material.
Further, the adhesion layer 34 comprises a thermoplastic elastomer, the primer layer 35 comprises functional groups similar to the thermoplastic elastomer and the rubber 100 respectively, and a bridging reaction can be provided between the adhesion layer 34 and the rubber 100, so that the protection layer 32 and the decoration layer 33 are tightly combined with the rubber 100 through adhesion of the adhesion layer 34 and bridging of the primer layer 35, and after the rubber 100 is cured, the primer layer 35 is transformed into the rubber 100 and becomes a part of the rubber 100.
Referring to fig. 3 and 4, a plurality of positioning posts 21 are further disposed on the lower thermal transfer printing die 2, and through holes corresponding to the positioning posts 21 are disposed on the release transfer printing film 3. Before the in-mold thermal transfer printing, the release transfer printing film 3 is placed above the positioning column 21, and the through hole in the release transfer printing film 3 is positioned with the positioning column 21, so that the precise positioning of the release transfer printing film 3 and the rubber 100 is ensured.
Further, the end of reference column 21 is equipped with oblique guide block 22, oblique guide block 22 with be formed with step 23 between the reference column 21, the through-hole is the inclined hole, just the diameter of through-hole slightly is less than the diameter of reference column 21, the diameter of through-hole slightly is greater than the diameter of the bottom of oblique guide block 22, before carrying out the interior thermal transfer of mould, earlier aim at oblique guide block 22 from the through-hole of type rendition membrane 3, make it fix in step 23 department, in order to avoid when not locating completely, contact from type rendition membrane 3 and rubber 100, when carrying out the in mould thermal transfer, mould 1 pushes down in the thermal transfer, and drives and push down from type rendition membrane 3, under the elastic action from type rendition membrane 3, the through-hole of type rendition membrane 3 slightly enlarges, and covers on rubber 100, thereby guarantee accurate location.
Further, thermal transfer lower mould 2 is equipped with temperature-detecting device, and temperature-detecting device is used for detecting the temperature in the mould to temperature in the real-time supervision mould prevents that the temperature is too high or is low excessively in the mould.
Further, the temperature detection device is connected with an alarm, and when the temperature in the mold is too high or too low, the alarm is given out so as to provide the staff for checking and adjusting.
Further, the alarm comprises a buzzer and an LED lamp, and provides workers in a sound and light mode, so that the workers are prevented from not receiving alarm signals in a noisy working environment.
While the present invention has been described in detail with reference to the preferred embodiments, it should be understood that the above description should not be taken as limiting the invention. Various modifications and alterations to this invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be determined from the following claims.
Claims (10)
1. An in-mold vulcanization transfer totem integrated rubber molding vulcanization process is characterized by comprising the following steps:
step 1: providing a heat transfer printing upper die and a heat transfer printing lower die arranged below the heat transfer printing upper die;
step 2: fixing rubber in a die cavity of the thermal transfer printing lower die;
and step 3: a release transfer printing film is arranged between the upper heat transfer printing die and the lower heat transfer printing die, and transfer printing colors and/or totems are arranged on the lower surface of the release transfer printing film;
and 4, step 4: closing and vulcanizing the upper thermal transfer printing die and the lower thermal transfer printing die, and performing delay die opening and pressure maintaining to transfer the transfer color and/or totem on the lower surface of the release type transfer printing film onto rubber;
and 5: and (5) taking out the rubber and tearing off the release transfer printing film after opening the die.
2. The in-mold vulcanization transfer totem integrated rubber molding vulcanization process as claimed in claim 1, wherein the time for delayed mold opening is 80 seconds to 150 seconds.
3. The in-mold vulcanization transfer totem integrated rubber molding vulcanization process of claim 1, characterized in that the holding pressure is 120kg to 180 kg.
4. The in-mold vulcanization transfer totem integrated rubber molding and vulcanizing process as claimed in claim 1, wherein the vulcanization temperature of the high temperature series is 175 ℃ -195 ℃, and the vulcanization temperature of the low temperature series is 100 ℃ -120 ℃.
5. The in-mold vulcanization transfer totem integrated rubber molding and vulcanizing process as claimed in claim 1, wherein the release transfer film comprises a release layer, a protective layer is formed on the release layer, a decorative layer is formed on the protective layer, an adhesion layer is formed on the decorative layer, and an primer layer is coated on the adhesion layer.
6. The in-mold vulcanization transfer totem integrated rubber molding vulcanization process of claim 5, wherein the adhesion layer comprises a thermoplastic elastomer and the primer layer comprises functional groups similar to the thermoplastic elastomer and the rubber material, respectively, that provide a crosslinking reaction between the adhesion layer and the rubber.
7. The in-mold vulcanization transfer totem integrated rubber molding and vulcanizing process as claimed in claim 1, wherein a plurality of positioning columns are arranged on the lower thermal transfer mold, and through holes corresponding to the plurality of positioning columns are formed on the release transfer film.
8. The in-mold vulcanization transfer totem integrated rubber molding and vulcanizing process as claimed in claim 7, wherein an inclined guide block is arranged at the tail end of the positioning column, and a step is formed between the inclined guide block and the positioning column.
9. The in-mold vulcanization transfer totem integrated rubber molding and vulcanizing process as claimed in claim 1, wherein the thermal transfer lower mold is provided with a temperature detecting device.
10. The in-mold vulcanization transfer totem integrated rubber molding and vulcanizing process as claimed in claim 9, wherein the temperature detection device is connected with an alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011149106.XA CN112372907A (en) | 2020-10-23 | 2020-10-23 | Rubber molding and vulcanizing process integrating in-mold vulcanization, transfer and totem |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011149106.XA CN112372907A (en) | 2020-10-23 | 2020-10-23 | Rubber molding and vulcanizing process integrating in-mold vulcanization, transfer and totem |
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| Publication Number | Publication Date |
|---|---|
| CN112372907A true CN112372907A (en) | 2021-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011149106.XA Pending CN112372907A (en) | 2020-10-23 | 2020-10-23 | Rubber molding and vulcanizing process integrating in-mold vulcanization, transfer and totem |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108621484A (en) * | 2017-03-17 | 2018-10-09 | 旭荣电子(深圳)有限公司 | Silica gel object and preparation method thereof with stereo multi-colour pattern surface layer |
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- 2020-10-23 CN CN202011149106.XA patent/CN112372907A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108621484A (en) * | 2017-03-17 | 2018-10-09 | 旭荣电子(深圳)有限公司 | Silica gel object and preparation method thereof with stereo multi-colour pattern surface layer |
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Application publication date: 20210219 |