CN216466134U

CN216466134U - Device for manufacturing vacuum plastic-absorbing protective film by water bath heating method

Info

Publication number: CN216466134U
Application number: CN202220015859.XU
Authority: CN
Inventors: 阎占忠; 刘晓屏
Original assignee: Beijing Xinyuan Technology Co ltd
Current assignee: Beijing Xinyuan Technology Co ltd
Priority date: 2022-01-06
Filing date: 2022-01-06
Publication date: 2022-05-10
Anticipated expiration: 2032-01-06

Abstract

The utility model belongs to the technical field of vacuum plastic-absorbing forming films, in particular to a device for manufacturing a vacuum plastic-absorbing protective film by a water bath heating method, which comprises an upper die, a middle die, a lower die and a connecting ring, wherein a gas-absorbing groove is arranged at the middle position of the bottom of the upper die, the middle die is arranged below the upper die, a die matching inner cavity is arranged at the middle position of the bottom of the middle die, a plurality of gas-absorbing ports are uniformly arranged at the middle position of the top of the middle die, the middle die and the upper die belong to the same axle center, the top of the middle die is connected with the connecting ring outside the gas-absorbing port, a sealing rubber ring is sleeved outside the connecting ring, the sealing rubber ring arranged outside the connecting ring is mutually attached with the inner wall of the gas-absorbing groove to realize sealing, the utility model effectively solves the problem that only thermoplastic plastic sheets are heated in the existing vacuum plastic-absorbing technology and are influenced by the temperature difference of the dies, the problem of uneven stripes on the surface of the product formed by plastic suction is caused.

Description

Device for manufacturing vacuum plastic-absorbing protective film by water bath heating method

Technical Field

The utility model relates to a vacuum plastic uptake shaping membrane technical field specifically is a device of vacuum plastic uptake protection film is made to water-bath heating method.

Background

The vacuum plastic sucking molding technology is one of the plastic sheet hot forming processing technology and the plastic secondary processing industrial technology, and is one method of making opened casing product with thermoplastic sheet. Heating and softening the plastic sheet cut into a certain size, applying the plastic sheet to a specific mold contour surface after deforming the plastic sheet by means of the air pressure difference of two surfaces of the sheet, cooling and shaping, and trimming to obtain a finished product. The hot forming equipment comprises a clamping system, a heating system, a vacuum and compressed air system, a forming die and the like. In mass production, infrared heated plates are typically used to heat the plastic sheet. Because the plastic sheet contacts the surface of the mold for a different time, the portion that contacts the mold surface is cooled by the mold first, and the degree of tensile deformation is weaker than that of the uncooled portion, thereby forming streaks in some portions and failing to protect the precision parts of the apparatus.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a device of vacuum plastic uptake protection film is made to water-bath heating method is in order to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a device of vacuum plastic uptake protection film is made to water-bath heating method which characterized in that: the vacuum sealing device comprises an upper die, a middle die, a lower die and a connecting ring, wherein a vacuum pumping hole is formed in the middle of the top of the upper die, a second positioning groove is formed in the position, close to the outer side, of the bottom of the upper die, a pumping groove is formed in the position, in the middle of the bottom of the upper die, the middle die is arranged below the upper die, a die matching inner cavity is formed in the middle of the bottom of the middle die, a plurality of air suction ports are uniformly formed in the middle of the top of the middle die, the middle die and the upper die belong to the same axis, the diameter of the middle die is consistent with that of the upper die, the connecting ring is fixedly connected to the outer side of the air suction ports at the top of the middle die, a sealing rubber ring is sleeved on the outer side of the connecting ring, the diameter of the connecting ring is consistent with that of the air pumping groove, and the sealing rubber ring arranged on the outer side of the connecting ring is mutually attached to the inner wall of the air pumping groove to realize sealing, the middle mould is characterized in that a plurality of second positioning columns are uniformly arranged at positions, close to the outer side, of the top of the middle mould, first positioning grooves are uniformly formed in positions, close to the outer side, of the bottom of the middle mould, a lower mould is arranged at the bottom of the middle mould, a first positioning column is arranged at a position, close to the outer side, of the top of the lower mould, and the first positioning column, the second positioning columns, the first positioning grooves and the second positioning grooves all belong to the same axis.

Preferably, the first positioning column and the second positioning column are embedded with the first positioning groove and the second positioning groove, a first connecting and inserting jack which is through is formed in the middle of the second positioning groove, the first connecting and inserting jack penetrates through the top of the upper die, a second connecting and inserting jack which is through is formed in the middle of the second positioning column, the second connecting and inserting jack penetrates through the first positioning groove, and a threaded hole is formed in the middle of the first positioning column.

Preferably, the bottom of the middle die is provided with a convex pressing inclined plane outside the die matching inner cavity, and the middle position of the lower die is provided with a pressing inclined groove matched with the pressing inclined plane of the middle die.

Preferably, a plurality of communicated pressure reducing holes are uniformly formed in the middle of the lower die, a plastic film is arranged between the middle die and the lower die, and a pressing inclined plane arranged on the middle die and a pressing inclined groove arranged on the lower die are matched with each other to press the plastic film.

Preferably, a long screw is arranged above the first connecting jack, and the long screw passes through the first connecting jack and the second connecting jack and is inserted into the threaded hole to fix the upper die and the middle die.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses device equipment simple structure of vacuum plastic uptake protection film is made to water-bath heating method, adopts the method of heating through water-bath heating method to whole mould, replaces conventional only to heat the technology of thermoplastic sheet, because whole mould is in under the same heating temperature, the whole roughness of the plastic uptake protection film product of making out is high, and the shaping precision is high, is fit for making the protection film that precision equipment part used in small batches, the utility model discloses the effectual only heats the thermoplastic sheet in having solved current vacuum plastic uptake technique, receives the influence of mould temperature difference, causes the plastic uptake fashioned product surface problem of the stripe of unevenness to appear, can produce whole roughness height, the plastic uptake protection film product that the shaping precision is high, is fit for making the protection film that precision equipment part used in small batches.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic front sectional view of the present invention;

fig. 3 is a schematic view of the explosion structure of the present invention.

In the figure: 1. an upper die; 2. a long screw; 3. a plastic film; 4. a middle mold; 5. a lower die; 6. a vacuum pumping port; 7. a connecting ring; 8. a first connection jack; 9. a second connection jack; 10. a threaded hole; 11. an air suction port; 12. a pressure relief vent; 13. an air exhaust groove; 14. die matching the inner cavity; 15. a first positioning post; 16. a second positioning column; 17. a first positioning groove; 18. a second positioning groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a device of vacuum plastic uptake protection film is made to water-bath heating method which characterized in that: the vacuum forming die comprises an upper die 1, a middle die 4, a lower die 5 and a connecting ring 7, wherein a vacuum pumping hole 6 is formed in the middle of the top of the upper die 1, a second positioning groove 18 is formed in the position, close to the outer side, of the bottom of the upper die 1, a pumping groove 13 is formed in the middle of the bottom of the upper die 1, the middle die 4 is arranged below the upper die 1, a die matching inner cavity 14 is formed in the middle of the bottom of the middle die 4, a plurality of air suction ports 11 are uniformly formed in the middle of the top of the middle die 4, the middle die 4 and the upper die 1 belong to the same axis, the diameter of the middle die 4 is consistent with that of the upper die 1, the connecting ring 7 is fixedly connected to the outer side of the air suction ports 11 at the top of the middle die 4, a sealing rubber ring is sleeved on the outer side of the connecting ring 7, and the diameter of the connecting ring 7 is consistent with that of the pumping groove 13, the sealing rubber ring that the go-between 7 outside set up laminates with the groove 13 inner wall of bleeding each other and realizes sealedly, the position that the well mould 4 top is close to the outside evenly is provided with a plurality of second reference columns 16, the position that the well mould 4 bottom is close to the outside evenly has seted up first constant head tank 17, well mould 4 bottom is provided with bed die 5, the position that the top of bed die 5 is close to the outside is provided with first constant head tank 15, second reference column 16, first constant head tank 17 and the same axle center of second constant head tank 18 all belong to.

Further, the first positioning column 15 and the second positioning column 16 are embedded with the first positioning groove 17 and the second positioning groove 18, a first through-connection jack 8 is formed in the middle of the second positioning groove 18, the first through-connection jack 8 is through the top of the upper die 1, a second through-connection jack 9 is formed in the middle of the second positioning column 16, the second through-connection jack 9 is through the first positioning groove 17, and a threaded hole 10 is formed in the middle of the first positioning column 15.

Furthermore, a convex pressing inclined plane is arranged at the bottom of the middle die 4 outside the die matching inner cavity 14, and a pressing inclined groove matched with the pressing inclined plane arranged on the middle die 4 is formed in the middle of the lower die 5.

Furthermore, a plurality of communicated pressure reducing holes 12 are uniformly formed in the middle of the lower die 5, a plastic film 3 is arranged between the middle die 4 and the lower die 5, and a pressing inclined plane arranged on the middle die 4 and a pressing inclined groove arranged on the lower die 5 are matched with each other to press the plastic film 3 tightly.

Further, a long screw 2 is arranged above the first connection jack 8, and the long screw 2 passes through the first connection jack 8 and the second connection jack 9 and is inserted into the threaded hole 10 to fix the upper die 1 and the middle die 4.

The working principle is as follows: when in use, the plastic film 3 is only needed to be placed in the middle of the lower die, the first positioning groove 17 arranged at the bottom of the middle die 4 can be aligned with the first positioning post 15 arranged on the lower die 5 and then inserted, at this time, the middle die 4 can be positioned, the plastic film 3 can be compressed and fixed by the compression inclined plane arranged on the middle die 4 and the compression inclined groove arranged on the lower die 5, the plastic film 3 is properly deformed, at this time, the second positioning groove 18 arranged at the bottom of the upper die 1 can be aligned with the second positioning post 16 arranged at the top of the middle die 4 and then inserted, the upper die 1 can be positioned, the air exhaust groove 13 and the connecting ring 7 belong to the same axis, the connecting ring 7 is embedded into the air exhaust groove 13, the plastic ring sleeved on the connecting ring 7 is mutually attached to the inner wall of the air exhaust groove 13, the air exhaust groove 13 can be sealed, the long screw 2 can be aligned to the first connecting hole 8, the device is characterized in that a long screw can pass through a first connecting jack 8 and a second connecting jack 9 and then be screwed into a threaded hole 10, the upper die 1 and the middle die 4 can be fixed, a vacuum pumping port 6 can be connected with a vacuum pump suction pipe, the device can be immersed into a water tank, the device is heated to a specified temperature through a heating and temperature control system, the vacuum pump can be started, so that vacuum is pumped into a pumping groove 13 from a suction port 11 formed in the middle die 4 and then is pumped out from the vacuum pumping port 6, a pressure reducing hole 12 formed in the middle of the lower die 5 can provide a pressure reducing path for an upper cavity, the design of the upper die 1 can effectively ensure that the middle die 4 is heated uniformly, and the die matching molding of the thermoplastic film 3 is realized through the specific shape of a die matching inner cavity 14 of the middle die 4.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a device of vacuum plastic uptake protection film is made to water bath heating method which characterized in that: the mold comprises an upper mold (1), a middle mold (4), a lower mold (5) and a connecting ring (7), wherein a vacuum pumping hole (6) is formed in the middle of the top of the upper mold (1), a second positioning groove (18) is formed in the position, close to the outer side, of the bottom of the upper mold (1), a pumping groove (13) is formed in the middle of the bottom of the upper mold (1), the middle mold (4) is arranged below the upper mold (1), a mold matching inner cavity (14) is formed in the middle of the bottom of the middle mold (4), a plurality of air suction ports (11) are uniformly formed in the middle of the top of the middle mold (4), the middle mold (4) and the upper mold (1) belong to the same axis, the diameter of the middle mold (4) is consistent with the diameter of the upper mold (1), and the connecting ring (7) is fixedly connected to the outer side of the air suction ports (11) at the top of the middle mold (4), the outer side cover of go-between (7) is equipped with sealed rubber ring, the diameter of go-between (7) is unanimous with the groove (13) diameter size of bleeding, the sealed rubber ring that set up in the go-between (7) outside laminates with the groove (13) inner wall of bleeding each other and realizes sealedly, the position that well mould (4) top is close to the outside evenly is provided with a plurality of second reference columns (16), first constant head tank (17) have evenly been seted up to the position that well mould (4) bottom is close to the outside, well mould (4) bottom is provided with bed die (5), the position that bed die (5) top is close to the outside is provided with first positioning column (15), second reference column (16), first positioning groove (17) and second constant head tank (18) all belong to same axle.

2. The apparatus for manufacturing vacuum plastic film according to claim 1, wherein the apparatus comprises: the first positioning column (15) and the second positioning column (16) are embedded with the first positioning groove (17) and the second positioning groove (18), a first through connecting hole (8) is formed in the middle of the second positioning groove (18), the first connecting hole (8) penetrates through the top of the upper die (1), a second through connecting jack (9) is formed in the middle of the second positioning column (16), the second connecting jack (9) penetrates through the first positioning groove (17), and a threaded hole (10) is formed in the middle of the first positioning column (15).

3. The apparatus for manufacturing vacuum plastic film according to claim 1, wherein the apparatus comprises: a convex pressing inclined plane is arranged at the bottom of the middle die (4) and outside the die matching inner cavity (14), and a pressing inclined groove matched with the pressing inclined plane arranged on the middle die (4) is formed in the middle of the lower die (5).

4. The apparatus for manufacturing vacuum plastic film according to claim 1, wherein the apparatus comprises: a plurality of communicated pressure reducing holes (12) are uniformly formed in the middle of the lower die (5), the plastic film (3) is arranged between the middle die (4) and the lower die (5), and a pressing inclined plane arranged on the middle die (4) and a pressing inclined groove arranged on the lower die (5) are matched with each other to press the plastic film (3).

5. The apparatus for manufacturing vacuum plastic film according to claim 2, wherein the apparatus comprises: and a long screw rod (2) is arranged above the first connecting jack (8), and the long screw rod (2) passes through the first connecting jack (8) and the second connecting jack (9) and is inserted into a threaded hole (10) to fix the upper die (1) and the middle die (4).