CN110126295B - Forming process of double-color rubber watch band - Google Patents
Forming process of double-color rubber watch band Download PDFInfo
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- CN110126295B CN110126295B CN201910402546.2A CN201910402546A CN110126295B CN 110126295 B CN110126295 B CN 110126295B CN 201910402546 A CN201910402546 A CN 201910402546A CN 110126295 B CN110126295 B CN 110126295B
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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
- 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
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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
- B29C37/02—Deburring or deflashing
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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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/14—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles in several steps
- B29C43/145—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles in several steps for making multicoloured articles
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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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/58—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
- 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
-
- 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
- B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
- B29C71/0009—After-treatment of articles without altering their shape; Apparatus therefor using liquids, e.g. solvents, swelling agents
-
- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/58—Measuring, controlling or regulating
- B29C2043/5808—Measuring, controlling or regulating pressure or compressing force
-
- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/58—Measuring, controlling or regulating
- B29C2043/5816—Measuring, controlling or regulating temperature
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to the technical field of electronic product accessories, in particular to a molding process of a two-color rubber watchband, which comprises the following steps: step one, oil pressure forming is carried out for one time; step two, deburring; thirdly, blanking and forming by a cutting die; step four, secondary oil pressure forming; step five, deburring; step six, three times of oil pressure forming; step seven, polishing; step eight, spraying; and step nine, adding sulfur and curing. This forming technology of double-colored rubber watchband, owing to utilize the cutting die to carry out blanking shaping to the raw materials of second kind of colour, make foraminiferous blanking product and put into once only to carry out secondary oil pressure shaping on the shaping product again, put into the commentaries on classics injection inslot of cubic forming die with the raw materials of second kind of colour again, the rubber coating of changing injection shaping hole lower half obtains semi-manufactured goods, and then can avoid causing the deformation in the extrusion hole, and also can avoid appearing glue bottleneck and the phenomenon of excessive glue.
Description
Technical Field
The invention relates to the technical field of electronic product accessories, in particular to a molding process of a double-color rubber watchband.
Background
Along with the improvement of living standard of people, the demand on intelligent wearable products is stronger, and the appearance and innovation of the intelligent wearable products are more important. To the product is dressed to intelligence, traditional watchband is mostly the monochromatic shaping, is difficult to satisfy the pursuit of consumer to product appearance like this.
At present, although there are also two-color molding methods for a watch band, the two-color molding methods of the prior art include the following two methods: (1) separately forming two color surface belt components, then coating a treating agent, and performing oil pressure composite forming again; the double-color forming mode can generate glue bottleneck and easily cause glue overflow; (2) forming a first color area by primary oil pressure, and forming a second color raw material by secondary oil pressure; the secondary oil pressure in the double-color molding mode is easy to cause extrusion deformation or glue overflow. Therefore, improvements are needed.
Disclosure of Invention
The invention aims to provide a molding process of a two-color rubber watchband, aiming at the defects of the prior art, and the molding process of the two-color rubber watchband can avoid the phenomena of glue overflow and extrusion deformation.
In order to achieve the purpose, the invention adopts the following technical scheme:
the forming process of the double-color rubber watchband comprises the following steps:
step one, one-time oil pressure forming: putting the raw material with the first color into a lower template of a one-step forming die for oil pressure forming to obtain a one-step formed product;
step two, deburring: removing burrs of the primary molded product obtained in the step one, and then putting the primary molded product into a lower template of a secondary molding die;
step three, blanking and forming by a cutting die: blanking and molding the raw material with the second color by using a cutting die to obtain a punched product with holes;
step four, secondary oil pressure forming: placing the punched product obtained in the step three on a primary formed product for secondary oil pressure forming to obtain a secondary formed product;
step five, deburring: removing burrs of the secondary molding product obtained in the fourth step, and then putting the secondary molding product into a lower template of a tertiary molding die;
step six, three times of oil pressure forming: putting the raw material with the second color into a transfer groove of a tertiary forming die, and performing transfer forming to encapsulate the lower half part of the inner hole to obtain a semi-finished product;
step seven, polishing: polishing the semi-finished product obtained in the sixth step to remove burrs, and processing and removing the burrs in the hole by using a punching die;
step eight, spraying: after the seventh step is finished, spraying smooth texture protective printing ink on the surface of the semi-finished product;
step nine, vulcanization and solidification: and (5) vulcanizing and curing the sprayed smooth texture protection ink to finish the molding process of the two-color rubber watch band.
In the above technical solution, in the first step, the raw material of the first color is fluororubber.
In the above technical solution, in the third step and the sixth step, the raw material of the second color is fluororubber.
In the above technical solution, in the first step, the primary oil pressure forming conditions are as follows: the temperature is 160-180 ℃; the vulcanization time is 290-310 s; the pressure was 90kg/cm2～110kg/cm2。
In the above technical scheme, in the second step, the deburring of the second step and the fifth step is to polish and remove the deburring by hand or remove the deburring by utilizing a hand die.
In the above technical solution, in the fourth step, the secondary oil pressure forming conditions are as follows: the temperature is 160-180 ℃; the vulcanization time is 290-310 s; the pressure was 90kg/cm2～110kg/cm2。
In the above technical solution, in the sixth step, the three-time oil pressure forming conditions are as follows: the temperature is 170-190 ℃; the vulcanization time is 290-310 s; the pressure was 90kg/cm2～110kg/cm2。
In the above technical solution, in the step eight, the viscosity of the sprayed smooth texture protective ink is 7.5 seconds/bucket to 9.5 seconds/bucket, and the thickness of the sprayed smooth texture protective ink is 10 μm to 15 μm.
In the above technical scheme, in the ninth step, the temperature of the vulcanization and curing is 170 ℃ to 190 ℃, and the time of the vulcanization and curing is 50min to 70 min.
Compared with the prior art, the invention has the beneficial effects that:
(1) according to the forming process of the two-color rubber watchband, the raw material with the second color is blanked and formed by the cutting die, the blanked product with the holes is prepared and then is placed on the primary formed product for secondary oil pressure forming, the raw material with the second color is placed in the transfer groove of the tertiary forming die for transfer forming, and the lower half part of the inner hole is encapsulated to obtain a semi-finished product, so that deformation in the extrusion hole can be avoided, and the phenomena of glue bottleneck and glue overflow can be avoided.
(2) According to the forming process of the double-color rubber watchband, the prepared double-color rubber watchband has the characteristic of excellent performance and can pass the following test requirements: rubber friction test is carried out for 25 circles, and the surface has no paint layer and exposes the substrate; the Martindale test is carried out for 5000 times, and the glossiness and the hand feeling of the product are not obviously changed; the cold and hot impact test shows that the product has no degumming, no cracking, no color change and no deformation; the appearance of the shell is not cracked, discolored, deformed, foamed, speckled or peeled off in the boiling test at 100 ℃ for 5 minutes.
(3) The forming process of the double-color rubber watchband provided by the invention has the characteristics of simple process, low production cost and suitability for large-scale production.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more apparent, the present invention is further described in detail below with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1.
A molding process of a two-color rubber watchband comprises the following steps:
step one, one-time oil pressure forming: putting the raw material with the first color into a lower template of a one-step forming die for oil pressure forming to obtain a one-step formed product; wherein the raw material of the first color is fluororubber; in this embodiment, the primary oil pressure forming conditions are as follows: the temperature is 170 ℃; the vulcanization time is 300 s; the pressure was 100kg/cm2；
Step two, deburring: removing burrs of the primary molded product obtained in the step one, and then putting the primary molded product into a lower template of a secondary molding die; in the embodiment, the deburring is to remove burrs by using a hand-stamping die;
step three, blanking and forming by a cutting die: blanking and molding the raw material with the second color by using a cutting die to obtain a punched product with holes; wherein the raw material of the second color is fluororubber;
step four, secondary oil pressure forming: placing the punched product obtained in the step three on a primary formed product for secondary oil pressure forming to obtain a secondary formed product; in this embodiment, the secondary oil pressure forming conditions are as follows: the temperature is 170 ℃; the vulcanization time is 300 s; the pressure was 100kg/cm2；
Step five, deburring: removing burrs of the secondary molding product obtained in the fourth step, and then putting the secondary molding product into a lower template of a tertiary molding die; in the embodiment, the deburring is to remove burrs by using a hand-stamping die;
step six, three times of oil pressure forming: putting the raw material with the second color into a transfer groove of a tertiary forming die, and performing transfer forming to encapsulate the lower half part of the inner hole to obtain a semi-finished product; wherein the raw material of the second color is fluororubber; in this embodiment, the three-time oil pressure forming conditions are as follows: the temperature is 180 ℃; the vulcanization time is 300 s; the pressure was 100kg/cm2；
Step seven, polishing: polishing the semi-finished product obtained in the sixth step to remove burrs, and processing and removing the burrs in the hole by using a punching die;
step eight, spraying: after the seventh step is finished, spraying smooth texture protective printing ink on the surface of the semi-finished product; in this example, the viscosity of the sprayed smooth texture protective ink was 8.5 seconds per bucket, and the thickness of the sprayed smooth texture protective ink was 12 μm;
step nine, vulcanization and solidification: and (5) vulcanizing and curing the sprayed smooth texture protection ink to finish the molding process of the two-color rubber watch band. In this example, the temperature of vulcanization and curing was 180 ℃ and the time of vulcanization and curing was 60 min.
Example 2.
A molding process of a two-color rubber watchband comprises the following steps:
step one, one-time oil pressure forming: putting the raw material with the first color into a lower template of a one-step forming die for oil pressure forming to obtain a one-step formed product; wherein the raw material of the first color is fluororubber; in this embodiment, the primary oil pressure forming conditions are as follows: the temperature is 160 ℃; the vulcanization time is 310 s; the pressure was 90kg/cm2；
Step two, deburring: removing burrs of the primary molded product obtained in the step one, and then putting the primary molded product into a lower template of a secondary molding die; in the embodiment, the deburring is manual polishing and deburring;
step three, blanking and forming by a cutting die: blanking and molding the raw material with the second color by using a cutting die to obtain a punched product with holes; wherein the raw material of the second color is fluororubber;
step four, secondary oil pressure forming: placing the punched product obtained in the step three on a primary formed product for secondary oil pressure forming to obtain a secondary formed product; in this embodiment, the secondary oil pressure forming conditions are as follows: the temperature is 160 ℃; the vulcanization time is 310 s; the pressure was 90kg/cm2；
Step five, deburring: removing burrs of the secondary molding product obtained in the fourth step, and then putting the secondary molding product into a lower template of a tertiary molding die; in the embodiment, the deburring is manual polishing and deburring;
step six, three times of oil pressure forming: putting the raw material with the second color into a transfer groove of a tertiary forming die, and performing transfer forming to encapsulate the lower half part of the inner hole to obtain a semi-finished product; wherein the raw material of the second color is fluororubber; in this embodiment, the three-time oil pressure forming conditions are as follows: the temperature is 170 ℃; the vulcanization time is 310 s; the pressure was 90kg/cm2；
Step seven, polishing: polishing the semi-finished product obtained in the sixth step to remove burrs, and processing and removing the burrs in the hole by using a punching die;
step eight, spraying: after the seventh step is finished, spraying smooth texture protective printing ink on the surface of the semi-finished product; in this example, the viscosity of the sprayed smooth texture protective ink was 7.5 seconds per bucket, and the thickness of the sprayed smooth texture protective ink was 10 μm;
step nine, vulcanization and solidification: and (5) vulcanizing and curing the sprayed smooth texture protection ink to finish the molding process of the two-color rubber watch band. In this example, the temperature of vulcanization and curing was 170 ℃ and the time of vulcanization and curing was 70 min.
Example 3.
A molding process of a two-color rubber watchband comprises the following steps:
step one, one-time oil pressure forming: putting the raw material with the first color into the lower die of the one-step forming dieCarrying out oil pressure forming on the plate to obtain a one-step formed product; wherein the raw material of the first color is fluororubber; in this embodiment, the primary oil pressure forming conditions are as follows: the temperature is 180 ℃; the vulcanization time was 290 s; the pressure was 110kg/cm2；
Step two, deburring: removing burrs of the primary molded product obtained in the step one, and then putting the primary molded product into a lower template of a secondary molding die; in the embodiment, the deburring is to remove burrs by using a hand-stamping die;
step three, blanking and forming by a cutting die: blanking and molding the raw material with the second color by using a cutting die to obtain a punched product with holes; wherein the raw material of the second color is fluororubber;
step four, secondary oil pressure forming: placing the punched product obtained in the step three on a primary formed product for secondary oil pressure forming to obtain a secondary formed product; in this embodiment, the secondary oil pressure forming conditions are as follows: the temperature is 180 ℃; the vulcanization time was 290 s; the pressure was 110kg/cm2；
Step five, deburring: removing burrs of the secondary molding product obtained in the fourth step, and then putting the secondary molding product into a lower template of a tertiary molding die; in the embodiment, the deburring is to remove burrs by using a hand-stamping die;
step six, three times of oil pressure forming: putting the raw material with the second color into a transfer groove of a tertiary forming die, and performing transfer forming to encapsulate the lower half part of the inner hole to obtain a semi-finished product; wherein the raw material of the second color is fluororubber; in this embodiment, the three-time oil pressure forming conditions are as follows: the temperature is 190 ℃; the vulcanization time was 290 s; the pressure was 110kg/cm2；
Step seven, polishing: polishing the semi-finished product obtained in the sixth step to remove burrs, and processing and removing the burrs in the hole by using a punching die;
step eight, spraying: after the seventh step is finished, spraying smooth texture protective printing ink on the surface of the semi-finished product; in this example, the viscosity of the sprayed smooth texture protective ink was 9.5 seconds per bucket, and the thickness of the sprayed smooth texture protective ink was 10 μm;
step nine, vulcanization and solidification: and (5) vulcanizing and curing the sprayed smooth texture protection ink to finish the molding process of the two-color rubber watch band. In this example, the temperature of vulcanization and curing was 190 ℃ and the time of vulcanization and curing was 50 min.
Example 4.
A molding process of a two-color rubber watchband comprises the following steps:
step one, one-time oil pressure forming: putting the raw material with the first color into a lower template of a one-step forming die for oil pressure forming to obtain a one-step formed product; wherein the raw material of the first color is fluororubber; in this embodiment, the primary oil pressure forming conditions are as follows: the temperature is 165 ℃; the vulcanization time is 305 s; the pressure was 95kg/cm2；
Step two, deburring: removing burrs of the primary molded product obtained in the step one, and then putting the primary molded product into a lower template of a secondary molding die; in the embodiment, the deburring is to remove burrs by using a hand-stamping die;
step three, blanking and forming by a cutting die: blanking and molding the raw material with the second color by using a cutting die to obtain a punched product with holes; wherein the raw material of the second color is fluororubber;
step four, secondary oil pressure forming: placing the punched product obtained in the step three on a primary formed product for secondary oil pressure forming to obtain a secondary formed product; in this embodiment, the secondary oil pressure forming conditions are as follows: the temperature is 165 ℃; the vulcanization time is 305 s; the pressure was 95kg/cm2；
Step five, deburring: removing burrs of the secondary molding product obtained in the fourth step, and then putting the secondary molding product into a lower template of a tertiary molding die; in the embodiment, the deburring is to remove burrs by using a hand-stamping die;
step six, three times of oil pressure forming: putting the raw material with the second color into a transfer groove of a tertiary forming die, and performing transfer forming to encapsulate the lower half part of the inner hole to obtain a semi-finished product; wherein the raw material of the second color is fluororubber; in this embodiment, the three-time oil pressure forming conditions are as follows: the temperature is 175 ℃; the vulcanization time is 305 s; the pressure was 95kg/cm2；
Step seven, polishing: polishing the semi-finished product obtained in the sixth step to remove burrs, and processing and removing the burrs in the hole by using a punching die;
step eight, spraying: after the seventh step is finished, spraying smooth texture protective printing ink on the surface of the semi-finished product; in this example, the viscosity of the sprayed smooth texture protective ink was 7.8 seconds per bucket, and the thickness of the sprayed smooth texture protective ink was 11 μm;
step nine, vulcanization and solidification: and (5) vulcanizing and curing the sprayed smooth texture protection ink to finish the molding process of the two-color rubber watch band. In this example, the temperature for vulcanization and curing was 175 ℃ and the time for vulcanization and curing was 65 min.
Example 5.
A molding process of a two-color rubber watchband comprises the following steps:
step one, one-time oil pressure forming: putting the raw material with the first color into a lower template of a one-step forming die for oil pressure forming to obtain a one-step formed product; wherein the raw material of the first color is fluororubber; in this embodiment, the primary oil pressure forming conditions are as follows: the temperature is 175 ℃; the vulcanization time is 295 s; the pressure was 105kg/cm2；
Step two, deburring: removing burrs of the primary molded product obtained in the step one, and then putting the primary molded product into a lower template of a secondary molding die; in the embodiment, the deburring is to remove burrs by using a hand-stamping die;
step three, blanking and forming by a cutting die: blanking and molding the raw material with the second color by using a cutting die to obtain a punched product with holes; wherein the raw material of the second color is fluororubber;
step four, secondary oil pressure forming: placing the punched product obtained in the step three on a primary formed product for secondary oil pressure forming to obtain a secondary formed product; in this embodiment, the secondary oil pressure forming conditions are as follows: the temperature is 175 ℃; the vulcanization time is 295 s; the pressure was 105kg/cm2；
Step five, deburring: removing burrs of the secondary molding product obtained in the fourth step, and then putting the secondary molding product into a lower template of a tertiary molding die; in the embodiment, the deburring is to remove burrs by using a hand-stamping die;
step six, three times of oil pressure forming: putting the raw material with the second color into a transfer groove of a tertiary forming die, and performing transfer forming to encapsulate the lower half part of the inner hole to obtain a semi-finished product; wherein the raw material of the second color is fluororubber; in this embodiment, the three-time oil pressure forming conditions are as follows: the temperature is 185 ℃; the vulcanization time is 295 s; the pressure was 105kg/cm2；
Step seven, polishing: polishing the semi-finished product obtained in the sixth step to remove burrs, and processing and removing the burrs in the hole by using a punching die;
step eight, spraying: after the seventh step is finished, spraying smooth texture protective printing ink on the surface of the semi-finished product; in this example, the viscosity of the sprayed smooth texture protective ink was 9.2 seconds per bucket, and the thickness of the sprayed smooth texture protective ink was 14 μm;
step nine, vulcanization and solidification: and (5) vulcanizing and curing the sprayed smooth texture protection ink to finish the molding process of the two-color rubber watch band. In this example, the temperature of vulcanization and curing was 185 ℃ and the time of vulcanization and curing was 55 min.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (9)
1. A molding process of a double-color rubber watchband is characterized by comprising the following steps: it comprises the following steps:
step one, one-time oil pressure forming: putting the raw material with the first color into a lower template of a one-step forming die for oil pressure forming to obtain a one-step formed product;
step two, deburring: removing burrs of the primary molded product obtained in the step one, and then putting the primary molded product into a lower template of a secondary molding die;
step three, blanking and forming by a cutting die: blanking and molding the raw material with the second color by using a cutting die to obtain a punched product with holes;
step four, secondary oil pressure forming: placing the punched product obtained in the step three on a primary formed product for secondary oil pressure forming to obtain a secondary formed product;
step five, deburring: removing burrs of the secondary molding product obtained in the fourth step, and then putting the secondary molding product into a lower template of a tertiary molding die;
step six, three times of oil pressure forming: putting the raw material with the second color into a transfer groove of a tertiary forming die, and performing transfer forming to encapsulate the lower half part of the inner hole to obtain a semi-finished product;
step seven, polishing: polishing the semi-finished product obtained in the sixth step to remove burrs, and processing and removing the burrs in the hole by using a punching die;
step eight, spraying: after the seventh step is finished, spraying smooth texture protective printing ink on the surface of the semi-finished product;
step nine, vulcanization and solidification: and (5) vulcanizing and curing the sprayed smooth texture protection ink to finish the molding process of the two-color rubber watch band.
2. The molding process of a two-color rubber watch band according to claim 1, characterized in that: in the first step, the raw material of the first color is fluororubber.
3. The molding process of a two-color rubber watch band according to claim 1, characterized in that: in the third step and the sixth step, the raw material of the second color is fluororubber.
4. The molding process of a two-color rubber watch band according to claim 1, characterized in that: in the first step, the primary oil pressure forming conditions are as follows: the temperature is 160-180 ℃; the vulcanization time is 290-310 s; the pressure was 90kg/cm2～110kg/cm2。
5. The molding process of a two-color rubber watch band according to claim 1, characterized in that: in the second step, the deburring in the second step and the fifth step is manual polishing to remove burrs or manual trimming die to remove burrs.
6. The molding process of a two-color rubber watch band according to claim 1, characterized in that: in the fourth step, the secondary oil pressure forming conditions are as follows: the temperature is 160-180 ℃; the vulcanization time is 290-310 s; the pressure was 90kg/cm2～110kg/cm2。
7. The molding process of a two-color rubber watch band according to claim 1, characterized in that: in the sixth step, the three-time oil pressure forming conditions are as follows: the temperature is 170-190 ℃; the vulcanization time is 290-310 s; the pressure was 90kg/cm2～110kg/cm2。
8. The molding process of a two-color rubber watch band according to claim 1, characterized in that: in the step eight, the viscosity of the sprayed smooth texture protective ink is 7.5-9.5 seconds per bucket, and the thickness of the sprayed smooth texture protective ink is 10-15 microns.
9. The molding process of a two-color rubber watch band according to claim 1, characterized in that: in the ninth step, the temperature of the vulcanization and solidification is 170-190 ℃, and the time of the vulcanization and solidification is 50-70 min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN113004642B (en) * | 2021-01-27 | 2023-05-30 | 广州弗西林橡塑有限公司 | Rubber material and preparation method and application thereof |
| CN113861595B (en) * | 2021-09-26 | 2023-02-10 | 昆山力普电子橡胶有限公司 | Fluorine rubber material for transfer molding, preparation method thereof and transfer molding method |
| CN116001301A (en) * | 2022-12-31 | 2023-04-25 | 博材智能科技(东台)有限公司 | Forming process of multicolor fluororubber watchband |
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| CN103223703A (en) * | 2013-04-24 | 2013-07-31 | 深圳市利勇安硅橡胶制品有限公司 | Forming die of double color silica gel product, forming method and silica gel product thereof |
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| CN101947001A (en) * | 2010-09-13 | 2011-01-19 | 黄贻钧 | Soles with grading design and manufacturing method thereof |
| US8998484B2 (en) * | 2012-09-18 | 2015-04-07 | Pascal Savoy | Watch strap with interchangeable indicia |
| CN108748959A (en) * | 2018-06-26 | 2018-11-06 | 东莞万德电子制品有限公司 | Dual-color silica gel watchband and its manufacture craft |
| CN208438710U (en) * | 2018-06-26 | 2019-01-29 | 东莞万德电子制品有限公司 | Dual-color silica gel watchband |
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| US5422154A (en) * | 1992-12-18 | 1995-06-06 | Chen; Hui-Mei | Multi-color floor covering by injection and punch-pressing processes with thermoplastic elastomer base |
| WO2014012331A1 (en) * | 2012-07-19 | 2014-01-23 | Liao Xiaoping | Rubber layer molded product and manufacturing method thereof |
| CN103223703A (en) * | 2013-04-24 | 2013-07-31 | 深圳市利勇安硅橡胶制品有限公司 | Forming die of double color silica gel product, forming method and silica gel product thereof |
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