CN216373162U - Rubber high-pressure forming die - Google Patents
Rubber high-pressure forming die Download PDFInfo
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- CN216373162U CN216373162U CN202121754478.5U CN202121754478U CN216373162U CN 216373162 U CN216373162 U CN 216373162U CN 202121754478 U CN202121754478 U CN 202121754478U CN 216373162 U CN216373162 U CN 216373162U
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- glue injection
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Abstract
The utility model discloses a rubber high-pressure forming die, which relates to the technical field of rubber ball hinge processing and comprises a rubber injection plug, a rubber injection barrel and a rubber injection module, wherein a pressing block is arranged at the bottom of the rubber injection plug; the top of the glue injection cylinder is provided with a pressure groove, the pressing block is inserted into the pressure groove and can move longitudinally relative to the pressure groove; the glue injection module is provided with a cavity, a first slot is formed in the glue injection module, a first insertion block is arranged on the glue injection barrel, and the first insertion block is inserted into the first slot; the top of the glue injection module is open, an insert is inserted into the open, a first through hole is formed in the glue injection cylinder, the upper portion of the insert is inserted into the first through hole, and a flow channel for communicating the pressure groove with the cavity is formed in the insert. The rubber injection plug is pressurized by external force, so that the rubber injection plug extrudes rubber materials in the pressure groove, the internal pressure of rubber product vulcanization can be obviously improved, the compactness of vulcanized rubber is improved, the dynamic fatigue performance of products is improved, and the service life of the products is prolonged.
Description
Technical Field
The utility model relates to the field of rubber damping products, in particular to a rubber high-pressure forming die.
Background
At present, rubber filling mould pressing or injection molding methods are commonly used for vulcanization molding of rubber products, the molding methods are simple to operate and high in production efficiency, but for rubber vibration reduction products with complex structures, bubbles are easy to generate by using the methods, and the compactness, the adherence and the like of rubber materials are poor, so that the service life of the rubber products is low, and the requirements of high performance and long service life of the products are difficult to meet.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a rubber high-pressure forming die which can improve the internal pressure of rubber product vulcanization.
According to the utility model, the rubber high-pressure forming die comprises a rubber injection plug, a rubber injection barrel and a rubber injection module, wherein a pressing block is arranged at the bottom of the rubber injection plug; the top of the glue injection barrel is provided with a pressure groove, the pressing block is inserted into the pressure groove and can move longitudinally relative to the pressure groove, and an external device provides pressure for the glue injection plug so that the glue injection plug provides pressure for the inside of the glue injection barrel; the glue injection module is provided with a cavity, a first slot is formed in the glue injection module, a first insertion block is arranged on the glue injection barrel, and the first insertion block is inserted into the first slot so that the glue injection barrel and the glue injection module can be connected in an inserted mode; the top of the glue injection module is open, an insert is inserted into the open, a frustum-shaped first through hole is formed in the glue injection cylinder, the upper portion of the insert is inserted into the first through hole, the top surface of the insert is flush with the bottom surface of the pressure groove, a flow channel for communicating the pressure groove with the cavity is formed in the insert, and glue in the pressure groove enters the cavity through the flow channel.
Preferably, the upper end face of the glue injection cylinder is provided with a positioning pin, and the bottom of the glue injection plug is provided with a positioning hole corresponding to the positioning pin, so that the glue injection plug is connected with the glue injection cylinder in an inserted manner.
Specifically, a gap is formed between the pressure groove and the side wall of the pressing block, and a gap is formed between the bottom surface of the pressure groove and the bottom surface of the pressing block.
Further, the injecting glue module includes well mould, lower mould and the die block that the cartridge connects in proper order, encloses between well mould, lower mould and the die block and establishes the die cavity, the upside of well mould has first slot to make well mould and injecting glue section of thick bamboo cartridge connection.
The middle part of the upper end surface of the bottom die is provided with a boss, the lower die is sleeved on the boss, the upper side of the lower die is provided with a second slot, the longitudinal section of the second slot is wide at the top and narrow at the bottom, and the lower side of the middle die is provided with a second insert block matched with the second slot so that the middle die can be inserted and connected to the lower die; the middle die is provided with a second through hole corresponding to the opening, the upper end of the boss extends into the second through hole, and the bottom of the insert extends into the second through hole and is stopped against the top of the boss; the outer side of the lower portion of the insert is provided with a first matching surface, the outer side of the boss is provided with a second matching surface, one side of the lower die is provided with a third matching surface, the inner side of the second through hole is provided with a fourth matching surface, and the cavity is enclosed among the first matching surface, the second matching surface, the third matching surface and the fourth matching surface.
Preferably, the outsides of the glue injection cylinder, the middle mold and the lower mold are provided with hanging rods, so that an external device is respectively connected with the hanging rods, and the parts are conveniently separated and demoulded.
The rubber high-pressure forming die provided by the embodiment of the utility model at least has the following beneficial effects: the rubber injection plug is pressurized by external force, so that the rubber injection plug extrudes rubber materials in the pressure groove, the internal pressure of rubber product vulcanization can be obviously improved, the compactness of vulcanized rubber is improved, the dynamic fatigue performance of the product is improved, and the service life of the product is prolonged; meanwhile, a gap is formed between the pressure groove and the glue injection cylinder, so that the problems that the glue injection cylinder and the glue injection plug of the high-pressure forming die are mutually clamped, the rubber in the glue injection cylinder is difficult to clean, a glue injection glue head is easy to break and is difficult to clean in a runner of the glue injection die and the like are solved.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The utility model is further illustrated with reference to the following figures and examples:
FIG. 1 is a sectional view of a high-pressure rubber molding die according to the present invention;
fig. 2 is an exploded view of a rubber high-pressure molding die shown in fig. 1.
Reference numerals: the rubber injection plug comprises a rubber injection plug 10, a pressing block 11, a positioning hole 12, a rubber injection barrel 20, a pressing groove 21, a first inserting block 22, an insert 23, a first through hole 24, a flow channel 25, a positioning pin 26, a cavity 30, a first matching surface 31, a second matching surface 32, a third matching surface 33, a fourth matching surface 34, a first slot 41, a middle die 42, a lower die 43, a bottom die 44, a boss 45, a second slot 46, a second inserting block 47, a second through hole 48 and a suspender 49.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, greater than, less than, exceeding, etc. are understood as excluding the present numbers, and the above, below, inside, etc. are understood as including the present numbers. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1 to 2, the rubber high-pressure forming mold according to the present invention comprises a rubber injection plug 10, a rubber injection cylinder 20 and a rubber injection module, wherein a pressing block 11 is provided at the bottom of the rubber injection plug 10; the top of the glue injection barrel 20 is provided with a pressure groove 21, the pressing block 11 is inserted into the pressure groove 21, the pressing block 11 can move longitudinally relative to the pressure groove 21, and pressure is provided for the glue injection plug 10 through an external device, so that the glue injection plug 10 provides pressure for the inside of the glue injection barrel 20; the glue injection module is provided with a cavity 30, a first slot 41 is formed in the glue injection module, a first insertion block 22 is arranged on the glue injection barrel 20, and the first insertion block 22 is inserted into the first slot 41 so that the glue injection barrel 20 and the glue injection module can be connected in an inserted mode; the top of the glue injection module is open, an insert 23 is inserted into the open, a frustum-shaped first through hole 24 is formed in the glue injection barrel 20, the upper portion of the insert 23 is inserted into the first through hole 24, the top surface of the insert 23 is flush with the bottom surface of the pressure groove 21, a flow passage 25 for communicating the pressure groove 21 with the cavity 30 is formed in the insert 23, and glue in the pressure groove 21 enters the cavity 30 through the flow passage 25.
Provide pressure to injecting glue stopper 10 through external force and make injecting glue stopper 10 extrude the sizing material in the indent 21, pressure passes through the inside that the sizing material directly transmitted the product rubber, can show the internal pressure that improves the rubber product and vulcanize, and make pressure controllable, the internal pressure that external device can increase the rubber product and vulcanize to the pressure that injecting glue stopper 10 provided, reach the purpose of rubber product high pressure vulcanization, thereby improve vulcanized rubber's compactness, make the water in the sizing material volatilize and discharge the air, the sizing material increases gas solubility under the high pressure simultaneously, reduce the production of microcosmic bubble, improve product dynamic fatigue performance and product life.
The runner 25 of the insert 23 is inserted with a glue injection head, glue enters the cavity 30 through the glue injection head, when the insert 23 and the glue injection cylinder 20 are separated, the glue injection cylinder 20 takes away the glue layer, and the glue layer tears the glue injection head in the runner 25; when the middle mold 42 and the insert 23 are separated, the insert 23 is arranged so that the middle mold 42 and the insert can be rapidly demolded, the glue injection insert 23 and the rubber sheet can be conveniently cleaned, and the glue injection head pulled out from the flow channel 25 can be pulled and pulled out, so that the glue injection head in the flow channel 25 can be rapidly cleaned.
Specifically, the maximum width of the insert 23 in the portion located in the first through hole 24 is greater than the minimum width of the portion located in the second through hole 48 to facilitate the separation between the insert 23 and the middle die 42.
Preferably, the upper end surface of the glue injection cylinder 20 is provided with a positioning pin 26, and the bottom of the glue injection plug 10 is provided with a positioning hole 12 corresponding to the positioning pin 26, so that the glue injection plug 10 and the glue injection cylinder 20 are connected in an inserted manner; the glue injection plug 10 and the glue injection barrel 20 are positioned during assembly through the excessive matching of the positioning pin 26 and the positioning hole. Preferably, the upper portion of the positioning pin 26 is circular truncated cone-shaped, and the lower portion is cylindrical, so that the positioning pin 26 can be inserted into the positioning hole 12 quickly.
Specifically, the pressing groove 21 has a gap with the side wall of the pressing block 11. Wherein, the clearance between the pressing groove 21 and the side wall of the pressing block 11 is 0.14-0.21 mm; furthermore, the gap between the side wall of the pressing groove 21 and the side wall of the pressing block 11 is preferably 0.15-0.20 mm, and the positioning pin 26 and the positioning hole 12 are used for positioning, so that an even gap is formed between the side wall of the pressing groove 21 and the side wall of the pressing block 11, the phenomenon that glue overflows due to the fact that the gap between the glue injection cylinder 20 and the glue injection plug 10 is too large during glue injection is avoided, and meanwhile the phenomenon that the glue injection cylinder 20 and the glue injection plug 10 are mutually clamped due to displacement during glue injection is avoided.
In the present embodiment, there is a gap between the bottom surface of the indentation 21 and the bottom surface of the compact 11. After glue injection, the gap is filled with rubber, the glue layer plays a role in pressure regulation and balance of each runner 25 before the rubber is unvulcanized, pressure of each runner 25 is guaranteed to be equal, and meanwhile, pressure provided by an external device is transmitted to the rubber in the product cavity 30 through the glue injection plug 10; in addition, the actual glue consumption of the product should make the thickness of the glue layer at the bottoms of the glue injection plug 10 and the glue injection cylinder 20 larger than the designed gap so as to ensure that the glue injection plug 10 is not pressed on the glue injection cylinder 20, and thus the pressure provided by the outside is completely pressed on the glue material to achieve the design purpose of high-pressure vulcanization. Demoulding after vulcanization, wherein the glue layer and each glue injection head are connected into a whole, and when the glue injection cylinder 20 is separated from the glue injection insert 23, the glue layer breaks the glue injection heads; when the glue injection cylinder 20 is opened to clean the rubber, the rubber in the glue injection cylinder 20 is connected with the glue layer to form a whole, and the vulcanized rubber in the glue injection cylinder 20 can be quickly cleaned by pulling out the glue layer. Preferably, the gap between the bottom surface of the pressing groove 21 and the bottom surface of the pressing block 11 is 0.5 to 1.0 mm.
Further, the glue injection module comprises a middle mold 42, a lower mold 43 and a bottom mold 44 which are sequentially connected in a plug-in manner, the cavity 30 is enclosed among the middle mold 42, the lower mold 43 and the bottom mold 44, the upper side of the middle mold 42 is provided with the first slot 41, so that the middle mold 42 is connected with the glue injection cylinder 20 in a plug-in manner, and meanwhile, the glue injection cylinder 20, the middle mold 42, the lower mold 43 and the bottom mold 44 are convenient to disassemble and assemble.
A boss 45 is arranged in the middle of the upper end face of the bottom die 44, the lower die 43 is sleeved on the boss 45, a second slot 46 is arranged on the upper side of the lower die 43, the longitudinal section of the second slot 46 is wide at the top and narrow at the bottom, and a second insert block 47 matched with the second slot 46 is arranged on the lower side of the middle die 42 so that the middle die 42 can be inserted and connected to the lower die 43; the middle die 42 is provided with a second through hole 48, the second through hole 48 corresponds to the opening, the upper end of the boss 45 extends into the second through hole 48, and the bottom of the insert 23 extends into the second through hole 48 and stops against the top of the boss 45; the insert 23 has a first mating surface 31 on the outer side of the lower portion thereof, a second mating surface 32 on the outer side of the boss 45, a third mating surface 33 on one side of the lower die 43, and a fourth mating surface 34 on the inner side of the second through hole 48, wherein the cavity 30 is enclosed among the first mating surface 31, the second mating surface 32, the third mating surface 33 and the fourth mating surface 34.
Specifically, the second mating surface 32 and the fourth mating surface 34 are parallel to each other and the lower ends thereof are inclined toward the outside to facilitate demolding.
Preferably, hanger rods 49 are provided on the outsides of the glue injection barrel 20, the middle mold 42 and the lower mold 43, so that an external device is connected to each hanger rod 49 to facilitate the separation and demolding of each part.
One mode of operation of the present invention is as follows: before use, the corresponding bottom die 44, the lower die 43, the middle die 42 and the glue injection cylinder 20 are inserted and connected, the insert 23 is inserted into the glue injection cylinder 20, glue is added into the pressure groove 21, the pressing block 11 is aligned to the pressure groove 21, pressure is applied to the glue injection plug 10 through an external device, so that the pressing block 11 extrudes the pressure groove 21, the glue enters the cavity 30 through the flow channel 25 on the insert 23 to carry out high-pressure vulcanization on the glue, and after the vulcanization is finished, the external force device separates the glue injection cylinder 20, the middle die 42 and the lower die 43 through the suspension rods 49 to carry out demoulding treatment on a rubber product.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (7)
1. A rubber high-pressure forming die is characterized by comprising:
the rubber injection plug (10) is provided with a pressing block (11) at the bottom of the rubber injection plug (10);
the glue injection barrel (20), the top of the glue injection barrel (20) is provided with a pressure groove (21), a pressing block (11) is inserted into the pressure groove (21), and the pressing block (11) can move longitudinally relative to the pressure groove (21);
the glue injection module is provided with a cavity (30), a first slot (41) is formed in the glue injection module, a first insert block (22) is arranged on a glue injection cylinder (20), the first insert block (22) is inserted into the first slot (41), an insert (23) is inserted into an opening at the top of the glue injection module, a frustum-shaped first through hole (24) is formed in the glue injection cylinder (20), the upper portion of the insert (23) is inserted into the first through hole (24), the top surface of the insert (23) is flush with the bottom surface of the indent (21), and a flow channel (25) which is communicated with the indent (21) and the cavity (30) is formed in the insert (23).
2. A high-pressure rubber molding die as defined in claim 1, wherein: the upper end face of the glue injection barrel (20) is provided with a positioning pin (26), and the bottom of the glue injection plug (10) is provided with a positioning hole (12) corresponding to the positioning pin (26).
3. A high-pressure rubber molding die as defined in claim 2, wherein: and a gap is reserved between the pressure groove (21) and the side wall of the pressing block (11).
4. A high-pressure rubber molding die as defined in claim 3, wherein: a gap is formed between the bottom surface of the pressure groove (21) and the bottom surface of the pressing block (11).
5. A high-pressure rubber molding die as defined in claim 1, wherein: the injecting glue module is including well mould (42), lower mould (43) and die block (44) that cartridge connection in proper order, enclose between well mould (42), lower mould (43) and die block (44) and establish into die cavity (30), the upside of well mould (42) has first slot (41).
6. A high-pressure rubber molding die as defined in claim 5, wherein: a boss (45) is arranged in the middle of the upper end face of the bottom die (44), the lower die (43) is sleeved on the boss (45), a second slot (46) is formed in the upper side of the lower die (43), the longitudinal section of the second slot (46) is wide at the top and narrow at the bottom, and a second insertion block (47) matched with the second slot (46) is arranged on the lower side of the middle die (42); the middle die (42) is provided with a second through hole (48), the upper end of the boss (45) extends into the second through hole (48), and the bottom of the insert (23) extends into the second through hole (48) and is stopped against the top of the boss (45); the outer side of the lower portion of the insert (23) is provided with a first matching surface (31), the outer side of the boss (45) is provided with a second matching surface (32), one side of the lower die (43) is provided with a third matching surface (33), the inner side of the second through hole (48) is provided with a fourth matching surface (34), and the cavity (30) is enclosed among the first matching surface (31), the second matching surface (32), the third matching surface (33) and the fourth matching surface (34).
7. A high-pressure rubber molding die as defined in claim 6, wherein: and suspenders (49) are arranged on the outer sides of the glue injection barrel (20), the middle mold (42) and the lower mold (43).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121754478.5U CN216373162U (en) | 2021-07-30 | 2021-07-30 | Rubber high-pressure forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121754478.5U CN216373162U (en) | 2021-07-30 | 2021-07-30 | Rubber high-pressure forming die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216373162U true CN216373162U (en) | 2022-04-26 |
Family
ID=81240488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121754478.5U Active CN216373162U (en) | 2021-07-30 | 2021-07-30 | Rubber high-pressure forming die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216373162U (en) |
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2021
- 2021-07-30 CN CN202121754478.5U patent/CN216373162U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 412007 building 3, No. 777, Xianyue Ring Road, Tianyuan District, Zhuzhou City, Hunan Province Patentee after: HUNAN CHANGLI RAIL TRANSPORTATION EQUIPMENT Co.,Ltd. Address before: 412007 building 3, No. 777, Xianyue Ring Road, Tianyuan District, Chenzhou City, Hunan Province Patentee before: HUNAN CHANGLI RAIL TRANSPORTATION EQUIPMENT Co.,Ltd. |
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| CP02 | Change in the address of a patent holder |