CN217862788U

CN217862788U - Auxiliary die for in-die pasting printing air channel

Info

Publication number: CN217862788U
Application number: CN202221569213.2U
Authority: CN
Inventors: 刘德
Original assignee: Shenzhen Xingjingke Plastic Mould Co ltd
Current assignee: Shenzhen Xingjingke Plastic Mould Co ltd
Priority date: 2022-06-22
Filing date: 2022-06-22
Publication date: 2022-11-22
Anticipated expiration: 2032-06-22

Abstract

The utility model discloses an auxiliary mould for sticking a printing air passage in a mould, which comprises a front mould core, a film pressing plate and a vacuum-pumping system; the front die core is fixedly arranged on the plate A, a through double-section type air hole is formed in the front die core, the vacuumizing system comprises an air nozzle, an air pipe and an air passage, the air nozzle is arranged on one side of the plate A and is connected with the air pipe in parallel, and the air pipe is communicated with the double-section type air hole through the air passage; the film pressing plate is arranged above the front mold core, and when the mold is closed, the film pressing plate presses the film. This novel utilize the evacuation principle to inhale the film on front mould benevolence, recycle the film clamp plate and push down the film, can prevent effectively that the film from corrugating, reduce and paste the seal defective rate, can enough resources are saved still helps reduction in production cost.

Description

Auxiliary die for in-die pasting printing air channel

Technical Field

The utility model relates to a mould especially relates to an in-mould paste seal air flue auxiliary mould, belongs to the injection mold field of the supplementary technical product of in-mould paste seal air flue.

Background

In the existing in-mold pasting and printing treatment process, a film is usually directly placed in a mold, the four corners of the film are positioned, and the film is adsorbed on a front mold core by electrostatic adsorption after the mold is closed. However, the treatment method combining four-corner positioning and electrostatic adsorption is easy to cause the wrinkling phenomenon of the film, so that the reject ratio of the pasted and printed product is increased; on one hand, in order to make up for the defect rate problem, raw material investment needs to be increased, and production cost is increased, and on the other hand, defective products do not accord with the factory requirements and need to be scrapped, so that resource waste is caused.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects existing in the technology, the utility model provides an auxiliary die for sticking a printed air passage in a die.

In order to solve the technical problem, the utility model discloses a technical scheme be: an auxiliary die for an in-die labeling air passage comprises a front die core, a film pressing plate and a vacuumizing system;

the front die core is fixedly arranged on the plate A, a through double-section type air hole is formed in the front die core, the vacuumizing system comprises an air nozzle, an air pipe and an air passage, the air nozzle is arranged on one side of the plate A and is connected with the air pipe in parallel, and the air pipe is communicated with the double-section type air hole through the air passage;

the film pressing plate is arranged above the front mold core, and when the mold is closed, the film pressing plate presses the film.

Furthermore, the air passage is divided into a longitudinal air passage and a transverse air passage, the longitudinal air passage communicates the air pipe with the transverse air passage, and the transverse air passage is surrounded by a circle and communicated with the two-section type air hole.

Furthermore, the two-section type air hole is composed of a coarse hole and a fine hole which are communicated into a whole, the fine hole is positioned above the fine hole, and the coarse hole is positioned below the fine hole.

Furthermore, the two-section type air holes are arranged along the cross air passage in a plurality of equal-interval distribution.

Furthermore, a sealing ring is sealed between the film pressing plate and the front mold core, and the first sealing ring is embedded into the top end of the front mold core and provided with a back-off groove.

Furthermore, a second sealing ring is sealed between the bottom of the front mold core and the plate A, and the second sealing ring is arranged on the plate A.

Further, the film pressing plate is connected with an ejector rod through a screw, the ejector rod penetrates through the plate A downwards, and the bottom end of the ejector rod is connected with an ejector plate through a screw.

The utility model discloses an auxiliary mould for sticking a printing air flue in a mould, which is additionally provided with a mechanism capable of realizing vacuum pumping, and a film is sucked on a front mould core by utilizing the vacuum pumping principle so as to replace the traditional electrostatic adsorption mode; the film pressing plate is used for pressing the film, and the combination mode of the film pressing plate and vacuum adsorption is adopted, so that the film can be effectively prevented from wrinkling, the reject ratio of the attaching print is reduced, the resources can be saved, and the production cost can be reduced.

Drawings

Fig. 1 is a schematic diagram of the vacuum pumping system of the present invention.

Fig. 2 is a schematic sectional view of the present invention.

Fig. 3 is a schematic structural diagram of the present invention during operation.

In the figure: 1. an air tap; 2. an air tube; 3. an airway; 31. a longitudinal air passage; 32. a cross air passage; 4. a two-section type air hole; 5. a front mold core; 6. a first sealing ring; 7. film pressing plate; 8. a top rod; 9. a mandril guide sleeve; 10. a, a plate; 11. an ejector plate; 12. a film adjusting block; 13. a rear mold core; 14. a second sealing ring; 15. a film.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

An auxiliary mold for an air channel of in-mold labeling is shown in fig. 1 and fig. 2, and comprises a front mold core 5, a film pressing plate 7 and a vacuum pumping system;

the front mold core 5 is a rectangular steel piece, the front side of the front mold core is provided with a mold cavity structure, and the mold cavity is vacuumized during the attaching process; a circle of annular blind grooves are formed in the periphery of the cavity of the front mold core 5 and used for arranging the film adjusting blocks 12, the film adjusting blocks 12 are fixed to the blind grooves through screws, and when the front mold core 5 and the rear mold core 13 are closed, the film adjusting blocks and the rear mold core 13 are matched and pressed for adjusting the feeding speed of a film.

Meanwhile, four corners of the front surface of the front mold core 5 are respectively provided with screw through holes, so that the front mold core is fixedly mounted on the A plate 10. The front surface of the A plate 10 is provided with a blind groove which is used for placing the front mold core 5. The four corners at the bottom of the blind groove are provided with screw tooth structures, and after the front mold core 5 is placed in the blind groove, the upper front mold core 5 and the lower front mold core 5 of the screw tooth structures are installed in the plate A by utilizing fixing screws.

As shown in fig. 2, a through double-section air hole 4 is formed in the front mold core 5, and the double-section air hole 4 is used for communicating with a vacuum-pumping system to realize vacuum-pumping attachment of the film. As shown in fig. 2 and fig. 3, the vacuum pumping system includes an air faucet 1, an air pipe 2 and an air passage 3, wherein the air faucet 1 is disposed on one side of the a plate 10 and connected to the air pipe 2, and the air pipe 2 is connected to the two-section air hole 4 through the air passage 3. The air faucet 1 is externally connected with a vacuum-pumping device, the air flue 3 is divided into a longitudinal air flue 31 and a transverse air flue 32, the longitudinal air flue 31 is communicated with the air pipe 2 and the transverse air flue 32, and the transverse air flue 32 is surrounded with a circle and communicated with the two-section air holes 4. In cooperation with the cross air duct 32, the two-stage air hole 4 is provided in plural along the cross air duct 32.

In order to reduce the risk of the membrane being ultra-wrinkled, the two-section pores are distributed as equidistantly as possible. And, the two-section type air hole 4 is designed to be narrow at the top and wide at the bottom, namely: as shown in fig. 2, the two-stage air hole 4 is composed of a coarse hole and a fine hole which are integrally connected, the fine hole is located at the upper part, and the coarse hole is located at the lower part. The pore is close to the die cavity, and at the evacuation, has the effect that pore department can pressurize by the two-section formula structure of width under the narrow-down to promote the attached effect on front mould benevolence of film.

Further, as shown in fig. 2, a film platen 7 is provided above the front core 5, and the film 15 is pressed by the film platen 7 when the mold is closed. The film pressing plate 7 is a rectangular steel piece, and a through hole is formed in the middle of the front surface according to the size of the rear mold core 13, so that the front mold core and the rear mold core are convenient to close. A raised step structure is arranged on the periphery of the bottom of the film pressing plate 7, and the raised part contacts the plate A and is used for being connected with the ejector rod 8; the concave part is of a plane structure and is used for pressing the film, so that the film is convenient to vacuumize.

For realizing the up-and-down action of the film pressing plate 7, holes with the same cross section as that of the top end of the ejector rod are formed in four corners of the bottom surface of the protruding part of the film pressing plate, and are used for placing the ejector rod 8 and realizing the connection of the ejector rod 8 and the film pressing plate 7 through fixing screws.

The ejector rod 8 downwards penetrates through the plate A and is connected with an ejector plate 11 at the bottom end through a screw; the ejector plate 11 is a rectangular steel piece, four corners of the front surface are respectively provided with a round blind hole, and the bottom of the blind hole is provided with a screw through hole for fixing the ejector rod. The ejector plate 11 is positioned below the front die core 5 and is separated from the A plate 10 by an ejection stroke space, so that the ejector plate 11 can move up and down conveniently, and the film pressing plate 7 is driven by the ejector rod 8 to move.

The ejector rod 8 adopts cylindrical steel part can, for the stability when improving the action of ejector rod 8, be equipped with an ejector rod guide pin bushing 9 at ejector rod 8 overcoat, ejector rod guide pin bushing 9 adopt with the ejector rod 8 supporting standard part can, with ejector rod guide pin bushing 9 fixed mounting to the bottom face department of A board 10 for the direction of ejector rod 8 motion.

In addition, in order to ensure the reliability during the vacuum pumping, as shown in fig. 2, a first sealing ring 6 is sealed between the film pressing plate 7 and the front mold core 5, and the first sealing ring 6 is embedded into a back-off groove formed at the top end of the front mold core 5; the first sealing ring 6 is arranged below the film pressing plate and above the front mold core and used for sealing the space between the film and the cavity, so that vacuum is formed conveniently during later molding.

As shown in fig. 1, a second sealing ring 14 is sealed between the bottom of the front mold core 5 and the a plate 10, and the second sealing ring 14 is installed on the a plate 10; the russian sum sealing ring 14 is provided with double rings for sealing the cross air passage, keeping the efficient operation of the vacuum pumping system.

From this, to the utility model discloses a mould is pasted and is printed air flue auxiliary die in mould compares in traditional static subsides seal adsorption mode, utilizes the evacuation principle to adsorb the film on front mould benevolence, through the action of thimble board with the ejector pin, pushes down the film with the film clamp plate, and the evacuation adsorbs the mode that combines the film clamp plate to push down the film, can effectively reduce the emergence of film phenomenon of corrugating, and then promotes the yields. The effective improvement of yields can realize unmanned on duty, helps the development of intelligent mould, but reduction in waste reduction while reduction in production cost has very big economic benefits.

The above embodiments are not intended to limit the present invention, the present invention is not limited to the above examples, and the technical personnel in the technical field are in the technical solution of the present invention, and the changes, modifications, additions or replacements made within the scope of the technical solution of the present invention also all belong to the protection scope of the present invention.

Claims

1. The utility model provides an in-mold labeling air flue auxiliary mold, includes front mould benevolence (5), its characterized in that: it also comprises a film pressing plate (7) and a vacuum-pumping system;

the front mold core (5) is fixedly arranged on the A plate (10), a through double-section type air hole (4) is formed in the front mold core (5), the vacuumizing system comprises an air nozzle (1), an air pipe (2) and an air passage (3), the air nozzle (1) is arranged on one side of the A plate (10) and connected with the air pipe (2), and the air pipe (2) is communicated with the double-section type air hole (4) through the air passage (3);

the film pressing plate (7) is arranged above the front mold core (5), and when the mold is closed, the film (15) is pressed by the film pressing plate (7).

2. The auxiliary die for in-die stamping air passages according to claim 1, characterized in that: the air flue (3) is divided into a longitudinal air flue (31) and a transverse air flue (32), the longitudinal air flue (31) is communicated with the air pipe (2) and the transverse air flue (32), and the transverse air flue (32) is surrounded by a circle and is communicated with the two-section type air holes (4).

3. The in-mold decal air passage auxiliary mold according to claim 1 or 2, wherein: the two-section type air hole (4) is composed of a coarse hole and a fine hole which are communicated into a whole, the fine hole is positioned above the fine hole, and the coarse hole is positioned below the fine hole.

4. The auxiliary die for in-die stamping air passages according to claim 3, wherein: the two-section type air holes (4) are arranged along the transverse air passage (32) in a plurality and are distributed at equal intervals.

5. The auxiliary die for in-die stamping air passages as claimed in claim 4, wherein: a first sealing ring (6) is sealed between the film pressing plate (7) and the front mold core (5), and the first sealing ring (6) is embedded into the top end of the front mold core (5) and provided with a back-off groove.

6. The auxiliary die for in-die stamping air passages according to claim 5, wherein: a second sealing ring (14) is sealed between the bottom of the front mold core (5) and the A plate (10), and the second sealing ring (14) is installed on the A plate (10).

7. The auxiliary die for in-die stamping air passages according to claim 1, characterized in that: the film pressing plate (7) is connected with an ejector rod (8) through a screw, and the ejector rod (8) penetrates through the A plate (10) downwards and is connected with an ejector plate (11) at the bottom end through a screw.