CN112847998A - Pouring process of PU pouring wheel - Google Patents
Pouring process of PU pouring wheel Download PDFInfo
- Publication number
- CN112847998A CN112847998A CN202011608838.0A CN202011608838A CN112847998A CN 112847998 A CN112847998 A CN 112847998A CN 202011608838 A CN202011608838 A CN 202011608838A CN 112847998 A CN112847998 A CN 112847998A
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- CN
- China
- Prior art keywords
- wheel
- fixed
- mold
- pouring
- polyurethane material
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C39/10—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. casting around inserts or for coating 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
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/22—Component parts, details or accessories; Auxiliary operations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/22—Component parts, details or accessories; Auxiliary operations
- B29C39/24—Feeding the material into the 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
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/22—Component parts, details or accessories; Auxiliary operations
- B29C39/38—Heating or cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/22—Component parts, details or accessories; Auxiliary operations
- B29C39/44—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/32—Wheels, pinions, pulleys, castors or rollers, Rims
Abstract
The invention relates to the technical field of pouring wheel production, in particular to a pouring process of a PU pouring wheel, which aims at solving the problem that bubbles are easy to generate in the pouring wheel by the pouring wheel production process in the prior art, and provides the following scheme, which comprises the following steps: s1, preparing a mould of the pouring wheel, and then coating a layer of release agent on the inner wall of the mould; s2, processing the polyurethane material, namely heating and melting the polyurethane material by using a heating device, and removing bubbles in the polyurethane material; and S3, injecting the processed polyurethane material into the processed pouring wheel mold through a casting machine, and filling the polyurethane material into the space of the mold. The device has a stable structure and simple operation, can effectively and conveniently remove bubbles in the polyurethane material, and can effectively avoid the phenomenon that the fixed cylinder rotates due to the accidental starting of the motor, thereby improving the safety performance of the operation of the whole device.
Description
Technical Field
The invention relates to the field of production of pouring wheels, in particular to a pouring process of a PU pouring wheel.
Background
PU wheel is also called PU filling wheel, and most of luggage cases in the prior art adopt filling wheels, strictly speaking PU is also one of plastics, and only additives are added in the production process, so that the performance is more superior. The PU filling wheel has the characteristics of elasticity, certain damping effect (even better than that of a pneumatic wheel), good ground holding force, difficult slipping, more wear resistance and good comfort, and the main component of the PU filling wheel is polyurethane.
Make the inside production bubble that fills the wheel easily when producing among the prior art to influence the quality and the pleasing to the eye of product, for this reason, this scheme has proposed a PU fills technique of filling the wheel.
Disclosure of Invention
The invention provides a PU filling wheel filling process, which solves the problem that bubbles are easily generated in the filling wheel by the filling wheel production process in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
a PU perfusion wheel perfusion process comprises the following steps:
s1, preparing a mould of the pouring wheel, and then coating a layer of release agent on the inner wall of the mould;
s2, processing the polyurethane material, namely heating and melting the polyurethane material by using a heating device, and removing bubbles in the polyurethane material;
s3, injecting the processed polyurethane material into the processed pouring wheel mold through a casting machine, and enabling the polyurethane material to fill the space of the mold;
s4, after the material is poured, keeping the mold in a constant temperature environment of 80 ℃, and waiting for the material in the mold to be solidified;
and S5, after the material is solidified, taking out the mold from the constant temperature environment, cooling, then opening the mold, and finally taking out the molded finished product from the mold.
Preferably, the pouring pressure when pouring the polyurethane into the mold is 10-12MPa, and the pouring rate is 6 m/s.
Preferably, heating device includes the base, installs the pivot at the base top, fixes the solid fixed cylinder at the pivot top, fixes at the inside holding vessel of solid fixed cylinder, installs the top cap at the holding vessel top, installs at the outside heating jacket of holding vessel and installs and drive solid fixed cylinder pivoted transmission at the base top, heating device is still including fixing vacuum tube and the manometer at the top cap top, installing the sealed valve on vacuum tube and fixing the discharging pipe in holding vessel one side outer wall bottom, the one end of discharging pipe extends to the outside of solid fixed cylinder.
Preferably, a plurality of heating pipes in contact with the outer wall of the storage tank are installed in the heating jacket.
Preferably, transmission including cup joint at the outside driven gear of a fixed section of thick bamboo, fix electric telescopic handle and the control box at the base top, install the removal seat at the base top and fix the motor at removal seat top electric telescopic handle is located the one side that the fixed section of thick bamboo was kept away from to the removal seat, and electric telescopic handle's extension end and the one side outer wall fixed connection that the fixed section of thick bamboo was kept away from to the removal seat, control box and electric telescopic handle and motor electric connection.
Preferably, the transmission device further comprises a driving gear fixed at one end of an output shaft of the motor, and the driving gear is matched with the driven gear.
Preferably, the bottom of the moving seat is fixed with a limiting block, the top surface of the base is provided with a limiting groove, and the bottom of the limiting block extends to the inside of the limiting groove and is in sliding connection with the limiting groove.
Preferably, the top cover is fixedly connected with the storage tank through a lock catch.
Preferably, a plurality of fixing blocks are fixed between the inner wall of the fixing barrel and the outer wall of the heating sleeve.
The invention has the beneficial effects that:
1. through heating device's setting, can not advance and melt the heating of polyurethane material, can also be convenient get rid of the bubble in the polyurethane material to avoid the inside of product to mix there is the bubble, and then influence the product and to quality.
2. Through transmission's setting, not advancing the fixed section of thick bamboo of drive and the heating jacket that can be convenient and rotate to discharge of the bubble in the polyurethane material under the molten condition with higher speed can also be when need not rotating fixed cover with driving gear and driven gear separately, thereby make the fixed section of thick bamboo accidentally driven by the motor under the condition of avoiding misoperation, and then improved the security of whole device operation.
The device has a stable structure and simple operation, can effectively and conveniently remove bubbles in the polyurethane material, and can effectively avoid the phenomenon that the fixed cylinder rotates due to the accidental starting of the motor, thereby improving the safety performance of the operation of the whole device.
Drawings
Fig. 1 is a sectional view of a heating apparatus of the present invention.
Fig. 2 is a front view of the heating apparatus of the present invention.
Reference numbers in the figures: the device comprises a base 1, a storage tank 2, a top cover 3, a vacuum tube 4, a sealed valve 5, a lock catch 6, a fixed cylinder 7, a heating sleeve 8, a driven gear 9, a heating tube 10, a rotating shaft 11, a limiting groove 12, a limiting block 13, an electric telescopic rod 14, a control box 15, a motor 16, a driving gear 17, a fixed block 18, a movable seat 19, a discharge tube 20 and a pressure gauge 21.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-2, a PU perfusion wheel perfusion process includes the following steps:
s1, preparing a mould of the pouring wheel, and then coating a layer of release agent on the inner wall of the mould;
s2, processing the polyurethane material, namely heating and melting the polyurethane material by a heating device and removing bubbles in the polyurethane material, wherein the heating device comprises a base 1, a rotating shaft 11 arranged on the top of the base 1 and a fixed cylinder 7 fixed on the top of the rotating shaft 11, the device comprises a storage tank 2 fixed inside a fixed cylinder 7, a top cover 3 installed at the top of the storage tank 2, a heating sleeve 8 installed outside the storage tank 2, and a transmission device installed at the top of a base 1 and driving the fixed cylinder 7 to rotate, wherein a plurality of heating pipes 10 in contact with the outer wall of the storage tank 2 are installed inside the heating sleeve 8, the heating device further comprises a vacuumizing pipe 4 and a pressure gauge 21 fixed at the top of the top cover 3, a sealed valve 5 installed on the vacuumizing pipe 4 and a discharging pipe 20 fixed at the bottom of the outer wall of one side of the storage tank 2, one end of the discharging pipe 20 extends to the outside of the fixed cylinder 7, and a discharging valve is installed on;
s3, injecting the processed polyurethane material into the processed pouring wheel mold through a casting machine, filling the polyurethane material into the space of the mold, wherein the pouring pressure and the pouring speed are respectively 10-12MPa and 6m/S when the polyurethane is poured into the mold;
s4, after the material is poured, keeping the mold in a constant temperature environment of 80 ℃, and waiting for the material in the mold to be solidified;
and S5, after the material is solidified, taking out the mold from the constant temperature environment, cooling, then opening the mold, and finally taking out the molded finished product from the mold.
The transmission device comprises a driven gear 9 sleeved outside the fixed cylinder 7, an electric telescopic rod 14 and a control box 15 which are fixed on the top of the base 1, a moving seat 19 which is installed on the top of the base 1, and a motor 16 which is fixed on the top of the moving seat 19, wherein the electric telescopic rod 14 is positioned on one side of the moving seat 19, which is far away from the fixed cylinder 7, the extension end of the electric telescopic rod 14 is fixedly connected with the outer wall of one side of the moving seat 19, which is far away from the fixed cylinder 7, the control box 15 is electrically connected with the electric telescopic rod 14 and the motor 16, the transmission device also comprises a driving gear 17 which is fixed on one end of an output shaft of the motor 16, the driving gear 17 is matched with the driven gear 9, the storage tank 2 is driven to rotate through the transmission device, so that the discharge of bubbles in the polyurethane raw material is accelerated, in addition, the driving gear 17 is separated from, the operation safety of the whole device is further improved;
a limiting block 13 is fixed at the bottom of the moving seat 19, a limiting groove 12 is formed in the top surface of the base 1, the bottom of the limiting block 13 extends into the limiting groove 12 and is in sliding connection with the limiting groove 12, and the limiting block 13 is matched with the limiting groove 12, so that the moving seat 19 can be more stable when moving at the top of the base 1;
a plurality of fixing blocks 18 are fixed between the inner wall of the fixed cylinder 7 and the outer wall of the heating sleeve 8, and the arrangement of the fixing blocks 18 strengthens the stability between the fixed cylinder 7 and the storage tank 2;
through 6 fixed connection of hasp, the convenience is carried out the dismouting to top cap 3 between top cap 3 and holding vessel 2.
The working principle is as follows: during production, a mold of the filling wheel is prepared, a layer of release agent is coated on the inner wall of the mold, then a polyurethane material is poured into the storage tank 2 of the heating device, then the top cover 3 is covered, the lock catch 6 is locked, then the heating pipe 10 is started through the control box 15, the heating temperature of the heating pipe 10 is adjusted to be 120 ℃, so that the polyurethane material in the storage tank 2 is melted, after the polyurethane material in the storage tank 2 is melted, the external vacuumizing device is abutted with the vacuumizing pipe 4, then the sealing valve 5 is opened until the storage tank 2 is in a negative pressure state, then the sealing valve 5 is closed, then the external vacuumizing device is separated from the vacuumizing hole pipe 4, then the heating temperature of the heating pipe 10 is adjusted to be 50 ℃ through the control box 15, so that the reaction rate of the polyurethane in the storage tank 2 is reduced, and then the electric telescopic rod 14 is started through the control box 15 to extend, until the driving gear 17 is in contact engagement with the driven gear 9, and then the motor 16 is started again, so that the fixed cylinder 7 starts to rotate, the rotation speed of the motor 16 is controlled to be 1800rpm, thereby accelerating the discharge of the air in the polyurethane material, removing the air bubbles in the polyurethane material completely in half an hour, the discharge valve can then be opened to inject the material in the storage tank 2 into the processed pouring wheel mold through the casting machine, and the space of the mold is filled with polyurethane material, the pouring pressure when the polyurethane is poured into the mold is 10-12MPa, the pouring speed is 6m/s, the mold is kept in a constant temperature environment of 80 ℃ after the material is poured, and (3) waiting for the material in the mold to be solidified, taking out the mold from the constant-temperature environment to be cooled after the material is solidified, then opening the mold, and finally taking out the molded finished product from the mold.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. The PU pouring wheel pouring process is characterized by comprising the following steps of:
s1, preparing a mould of the pouring wheel, and then coating a layer of release agent on the inner wall of the mould;
s2, processing the polyurethane material, namely heating and melting the polyurethane material by using a heating device, and removing bubbles in the polyurethane material;
s3, injecting the processed polyurethane material into the processed pouring wheel mold through a casting machine, and enabling the polyurethane material to fill the space of the mold;
s4, after the material is poured, keeping the mold in a constant temperature environment of 80 ℃, and waiting for the material in the mold to be solidified;
and S5, after the material is solidified, taking out the mold from the constant temperature environment, cooling, then opening the mold, and finally taking out the molded finished product from the mold.
2. The PU injecting wheel according to claim 1, wherein the pressure of the polyurethane injected into the mold is 10-12MPa, and the injection rate is 6 m/s.
3. The PU filling wheel filling process according to claim 1, wherein the heating device comprises a base (1), a rotating shaft (11) installed on the top of the base (1), a fixed cylinder (7) fixed on the top of the rotating shaft (11), a storage tank (2) fixed inside the fixed cylinder (7), a top cover (3) installed on the top of the storage tank (2), a heating jacket (8) installed outside the storage tank (2) and a transmission device installed on the top of the base (1) and driving the fixed cylinder (7) to rotate, the heating device further comprises a vacuum tube (4) and a pressure gauge (21) fixed on the top of the top cover (3), a closed valve (5) installed on the vacuum tube (4) and a discharge tube (20) fixed on the bottom of the outer wall on one side of the storage tank (2), one end of the discharge tube (20) extends to the outside of the fixed cylinder (7), a discharge valve is mounted on the discharge pipe 20.
4. A PU filling wheel filling process according to claim 3, wherein the heating jacket (8) is internally provided with a plurality of heating pipes (10) contacting with the outer wall of the storage tank (2).
5. The PU perfusion wheel perfusion process of claim 3, wherein the transmission device comprises a driven gear (9) sleeved outside the fixed cylinder (7), an electric telescopic rod (14) and a control box (15) fixed on the top of the base (1), a movable seat (19) installed on the top of the base (1) and a motor (16) fixed on the top of the movable seat (19), the electric telescopic rod (14) is located on one side of the movable seat (19) far away from the fixed cylinder (7), the extension end of the electric telescopic rod (14) is fixedly connected with the outer wall of the movable seat (19) far away from the fixed cylinder (7), and the control box (15) is electrically connected with the electric telescopic rod (14) and the motor (16).
6. A PU perfusion wheel perfusion process according to claim 5, wherein the transmission device further includes a driving gear (17) fixed at one end of the output shaft of the motor (16), the driving gear (17) is matched with the driven gear (9).
7. The PU perfusion wheel perfusion process according to claim 5, wherein a limiting block (13) is fixed to the bottom of the movable seat (19), a limiting groove (12) is formed in the top surface of the base (1), and the bottom of the limiting block (13) extends to the inside of the limiting groove (12) and is slidably connected with the limiting groove (12).
8. A PU perfusion wheel perfusion process according to claim 3, wherein the top cover (3) is fixedly connected with the storage tank (2) through a lock catch (6).
9. A PU filling wheel filling process according to claim 3, wherein a plurality of fixing blocks (18) are fixed between the inner wall of the fixing cylinder (7) and the outer wall of the heating jacket (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011608838.0A CN112847998A (en) | 2020-12-30 | 2020-12-30 | Pouring process of PU pouring wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011608838.0A CN112847998A (en) | 2020-12-30 | 2020-12-30 | Pouring process of PU pouring wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112847998A true CN112847998A (en) | 2021-05-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011608838.0A Pending CN112847998A (en) | 2020-12-30 | 2020-12-30 | Pouring process of PU pouring wheel |
Country Status (1)
| Country | Link |
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| CN (1) | CN112847998A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116901325A (en) * | 2023-09-06 | 2023-10-20 | 南通申东裕浩轮胎有限公司 | Casting equipment for polyurethane tire |
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| CN105965738A (en) * | 2016-06-03 | 2016-09-28 | 西安北方光电科技防务有限公司 | Pouring method for pouring molding of special-shaped coil former |
| CN107364055A (en) * | 2017-09-14 | 2017-11-21 | 江苏攸途健身器材有限公司 | A kind of instillation process of super transparent slide plate wheel |
| CN208543704U (en) * | 2018-07-26 | 2019-02-26 | 滁州市玉林聚氨酯有限公司 | A kind of pu tire is cast the equipment of automatic bubble removing |
| CN111941877A (en) * | 2019-05-14 | 2020-11-17 | 科思创德国股份有限公司 | Method for preparing polyurethane composite material by vacuum infusion process |
| CN212021279U (en) * | 2020-01-16 | 2020-11-27 | 苏州瑞意达机械设备有限公司 | Resin fills uses vacuum deaeration device |
| CN112008926A (en) * | 2020-06-29 | 2020-12-01 | 马鞍山和田电子智控系统有限公司 | Discharging device of polyurethane casting machine |
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2020
- 2020-12-30 CN CN202011608838.0A patent/CN112847998A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105965738A (en) * | 2016-06-03 | 2016-09-28 | 西安北方光电科技防务有限公司 | Pouring method for pouring molding of special-shaped coil former |
| CN107364055A (en) * | 2017-09-14 | 2017-11-21 | 江苏攸途健身器材有限公司 | A kind of instillation process of super transparent slide plate wheel |
| CN208543704U (en) * | 2018-07-26 | 2019-02-26 | 滁州市玉林聚氨酯有限公司 | A kind of pu tire is cast the equipment of automatic bubble removing |
| CN111941877A (en) * | 2019-05-14 | 2020-11-17 | 科思创德国股份有限公司 | Method for preparing polyurethane composite material by vacuum infusion process |
| CN212021279U (en) * | 2020-01-16 | 2020-11-27 | 苏州瑞意达机械设备有限公司 | Resin fills uses vacuum deaeration device |
| CN112008926A (en) * | 2020-06-29 | 2020-12-01 | 马鞍山和田电子智控系统有限公司 | Discharging device of polyurethane casting machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116901325A (en) * | 2023-09-06 | 2023-10-20 | 南通申东裕浩轮胎有限公司 | Casting equipment for polyurethane tire |
| CN116901325B (en) * | 2023-09-06 | 2023-12-15 | 南通申东裕浩轮胎有限公司 | Casting equipment for polyurethane tire |
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Application publication date: 20210528 |