A stretching forming device for producing aluminum-plastic film

Abstract

The present invention is applicable to the technical field of aluminum-plastic film forming, and provides a stretching forming device for aluminum-plastic film production, comprising a base, a chassis is arranged at intervals on the top of the base, and further comprising: a bearing assembly, wherein the chassis is connected to the base through a plurality of separately arranged columns, the bearing assembly comprises a bearing platform located between the plurality of columns, and a secondary mold is arranged on the bearing platform; a pressing assembly, wherein the pressing assembly is located between the bearing platform and the chassis, the pressing assembly comprises a pressing platform located between the plurality of columns, the pressing platform and the chassis are connected through telescopic driving members arranged on both sides, the chassis is used to drive the pressing platform to move in a vertical direction through the telescopic driving member, and a main mold corresponding to the position of the secondary mold is arranged on the pressing platform. The beneficial effect is that the device can selectively perform stretching forming in two directions, and the actual operation is more convenient and quick.

Description

Technical Field

[0001] The invention belongs to the technical field of aluminum-plastic film forming, and in particular relates to a stretching forming device for aluminum-plastic film production. Background Art

[0002] Aluminum-plastic film is a composite material widely used in packaging, construction, electronics and other fields. Aluminum-plastic film has high barrier properties and can greatly extend the shelf life of the wrapped objects.

[0003] The stretching forming of aluminum-plastic film is not a conventional stretching process. The stretching of aluminum-plastic film needs to rely on special molds. The pre-stretched aluminum-plastic film is placed in the mold, and air pressure or vacuum adsorption is used to make it fit the mold completely so that it can present a specific shape.

[0004] In the prior art, there are various stretching forming equipment, the most common of which is a stamping aluminum-plastic film forming machine. During use, the operator places a block of aluminum-plastic film on a mold, and the closed mold forms a closed space, and then the aluminum-plastic film is deformed by gas pressurization. The two sides of the aluminum-plastic film are made of different materials and have different functions, so the forming direction is also fixed. This requires the existing forming machine to pay attention to the placement direction of the aluminum-plastic film, which is not convenient in actual operation. Therefore, a stretching forming device for aluminum-plastic film production is proposed to solve the above problems. Summary of the invention

[0005] The purpose of the embodiments of the present invention is to provide a stretching forming device for producing aluminum-plastic films, aiming to solve the problems mentioned in the above background technology.

[0006] The embodiment of the present invention is implemented as follows: a stretching forming device for aluminum-plastic film production includes a base, a cabinet is arranged at intervals on the top of the base, and further includes:

[0007] A bearing assembly, wherein the chassis and the base are connected via a plurality of separately arranged columns, the bearing assembly comprises a bearing platform located between the plurality of columns, the bottom of the bearing platform is fixedly connected to the base via a plurality of vertically arranged elastic telescopic rods, and a secondary mold is arranged on the bearing platform;

[0008] A pressing assembly, the pressing assembly is located between the carrier and the chassis, the pressing assembly includes a pressing table located between a plurality of columns, the pressing table and the chassis are connected via telescopic driving members disposed on both sides, the chassis is used to drive the pressing table to move in a vertical direction via the telescopic driving member, and a main mold corresponding to the position of the auxiliary mold is arranged on the pressing table;

[0009] A pump is provided inside the chassis and at the bottom of the base. The pump inside the chassis is connected to the pressing table through a first telescopic pipe fitting. A first air duct connected to the first telescopic pipe fitting is provided inside the pressing table and the main mold. The support platform and the pump at the bottom of the base are connected through a second telescopic pipe fitting. A second air duct connected to the second telescopic pipe fitting is provided inside the support platform and the auxiliary mold.

[0010] Preferably, the supporting platform and the pressing platform are both provided with an installation slot with an opening on one side, and the main mold and the auxiliary mold are respectively fixedly installed on the pressing platform and the supporting platform through the installation slot, and the main mold and the auxiliary mold have the same structure, and the internal structures of the two are also the same.

[0011] Preferably, the second air channel includes a first channel opened at the bottom of the supporting platform, and a second channel opened at the bottom of the auxiliary mold. The first channel and the second channel are in a docking state with the second telescopic tube as the position corresponding to each other. One-way seals are arranged in the first channel and the second channel. The one-way seals are used to enable the pump at the bottom of the base to only transport gas to the inside of the auxiliary mold. The internal structures of the first air channel and the second air channel are the same.

[0012] Preferably, the one-way seal includes a bracket laterally fixedly connected to the first channel, an annular limiting groove is provided on the side of the top of the second channel facing the interior of the auxiliary mold, a plunger matching the annular limiting groove is provided in the second channel, and the bracket and the plunger are connected by an elastic reset member.

[0013] Preferably, the pump at the bottom of the base is also provided with a second output end, and the second output end is a third telescopic pipe fitting located between the supporting platform and the base. A plurality of straight air channels are opened on both sides of the supporting platform on the auxiliary mold, and the plurality of straight air channels are connected through annular air channels. The bottom of one of the straight air channels is in a through state and is connected to the third telescopic pipe fitting, and the bottoms of the remaining straight air channels are in a closed state.

[0014] Preferably, a plurality of the columns are slidably sleeved with ring bodies, the plurality of ring bodies are fixedly connected by an annular frame, four telescopic members are fixedly connected to the annular frame, the telescopic members are arranged in four directions around the bearing platform, the output end of the telescopic member is a push plate arranged toward the bearing platform, both sides of the base are fixedly connected with vertically arranged lifting members, the top of the lifting member is connected to the annular frame, the lifting member is used to drive the annular frame to move in the vertical direction on the column, and the telescopic member is used to drive the push plate to move laterally.

[0015] Preferably, a plurality of arc-shaped guide pieces are fixedly connected to the side surface of the pressing platform, and the arc-shaped guide pieces are in contact with the surface of the column. When the pressing platform moves in the vertical direction, the arc-shaped guide pieces slide on the column.

[0016] The embodiment of the present invention provides a stretching forming device for producing aluminum-plastic film, which has the following beneficial effects:

[0017] The device utilizes the characteristic that the aluminum-plastic film is deformed in a specific direction during molding. When the aluminum-plastic film is placed on the carrier, the telescopic driving member will drive the pressing platform to move downward, and the pressing platform and the carrier will press the aluminum-plastic film in the middle. Because the two sides of the aluminum-plastic film have different functional characteristics, the device adopts the form of a main mold and a sub-mold, and uses different pumps to transport gas, which can make the aluminum-plastic film deform in different directions. Therefore, in the actual operation process, when placing the aluminum-plastic film, there is no need to pay attention to the front and back of the aluminum-plastic film. The device can selectively perform stretching molding in two directions, and the actual operation is more convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional structural diagram of a stretching forming device for producing aluminum-plastic film provided by an embodiment of the present invention;

[0019] Figure 2 A front view of a stretching forming device for producing aluminum-plastic film provided by an embodiment of the present invention;

[0020] Figure 3 A side view of a stretching forming device for producing aluminum-plastic film provided by an embodiment of the present invention;

[0021] Figure 4 A three-dimensional schematic diagram of relevant structures on a carrying platform provided in an embodiment of the present invention;

[0022] Figure 5 A cross-sectional view of a carrier platform provided in an embodiment of the present invention;

[0023] Figure 6 for Figure 5 A partial enlarged view of the middle A;

[0024] Figure 7 for Figure 5 A partial enlarged view of point B in the middle;

[0025] Figure 8 A flow chart of controlling the operation of a pump through a monitoring camera provided in an embodiment of the present invention.

[0026] In the attached drawings: 1. base; 2. chassis; 3. column; 4. bearing platform; 5. elastic telescopic rod; 6. auxiliary mold; 7. pressing platform; 8. telescopic drive member; 9. main mold; 10. pump; 11. first telescopic pipe fitting; 12. second telescopic pipe fitting; 13. installation slot; 14. first channel; 15. second channel; 16. one-way seal; 1601. bracket; 1602. elastic reset member; 1603. plunger; 17. annular limit groove; 18. third telescopic pipe fitting; 19. straight airway; 20. annular airway; 21. ring body; 22. annular frame; 23; telescopic member; 24. push plate; 25. lifting member; 26. arc-shaped guide piece. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0028] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0029] like Figure 1 , Figure 2 and Figure 3 As shown, a stretching forming device for aluminum-plastic film production provided by one embodiment of the present invention comprises a base 1, a cabinet 2 is arranged at intervals on the top of the base 1, and further comprises:

[0030] The bearing assembly, wherein the chassis 2 is connected to the base 1 via a plurality of separately arranged columns 3, and the bearing assembly comprises a bearing platform 4 located between the plurality of columns 3, the bottom of the bearing platform 4 is fixedly connected to the base 1 via a plurality of vertically arranged elastic telescopic rods 5, and a secondary mold 6 is arranged on the bearing platform 4;

[0031] A pressing assembly, the pressing assembly is located between the carrier 4 and the chassis 2, and the pressing assembly includes a pressing table 7 located between the plurality of columns 3, the pressing table 7 and the chassis 2 are connected via telescopic driving members 8 disposed on both sides, the chassis 2 is used to drive the pressing table 7 to move in the vertical direction via the telescopic driving member 8, a main mold 9 corresponding to the position of the auxiliary mold 6 is provided on the pressing table 7, the telescopic driving member 8 can be in the form of an electric telescopic rod, and of course, can also be in the form of a hydraulic telescopic rod;

[0032] A pump 10 is provided inside the chassis 2 and at the bottom of the base 1. The pump 10 in the chassis 2 is connected to the pressing table 7 via a first telescopic pipe fitting 11. A first air duct connected to the first telescopic pipe fitting 11 is provided inside the pressing table 7 and the main mold 9. The support platform 4 is connected to the pump 10 at the bottom of the base 1 via a second telescopic pipe fitting 12. A second air duct connected to the second telescopic pipe fitting 12 is provided inside the support platform 4 and the auxiliary mold 6.

[0033] In one embodiment of the present invention, a plurality of arc-shaped guide pieces 26 are fixedly connected to the side of the pressing platform 7, and the arc-shaped guide pieces 26 are in contact with the surface of the column 3. When the pressing platform 7 moves in the vertical direction, the arc-shaped guide pieces 26 slide on the column 3, and the arc-shaped guide pieces 26 can limit the movement of the pressing platform 7. Figure 4 As shown, the support platform 4 and the pressing platform 7 are both provided with a mounting slot 13 with an open side, and the main mold 9 and the auxiliary mold 6 are respectively fixedly installed on the pressing platform 7 and the support platform 4 through the mounting slot 13. The main mold 9 and the auxiliary mold 6 have the same structure, and the internal structures of the two are also the same. The main mold 9 and the auxiliary mold 6 can be fixed by setting a snap structure in the mounting slot 13, and the main mold 9 and the auxiliary mold 6 can be replaced according to the molding requirements. Figure 8 As shown, based on the above-mentioned stretching forming device for aluminum-plastic film production, when the aluminum-plastic film is placed on the supporting platform 4, the pump 10 is controlled to work by a monitoring camera, and the specific steps include:

[0034] Step 1, obtaining a top view image of the support platform 4 by means of a monitoring camera, wherein the monitoring camera may be arranged on the chassis 2, and the main body of the monitoring camera is prior art, and thus will not be described in detail;

[0035] Step 2, performing image segmentation on the range corresponding to the aluminum-plastic film on the carrier platform 4 based on the top view image to obtain a feature image, wherein the feature image only includes the aluminum-plastic film;

[0036] Step 3, identifying the color of the aluminum-plastic film and determining the orientation of the aluminum-plastic film according to the feature image;

[0037] Step 4: Based on the above identification and judgment results, a start instruction is sent to the corresponding pump 10, so that the pump 10 delivers gas to the main mold 9 or the auxiliary mold 6.

[0038] It should be noted that there are two pumps 10 in the device, which are respectively arranged in the chassis 2 and on the base 1, and the orientation of the aluminum-plastic film and the start-up of the pump 10 need to be preset. When the monitoring camera recognizes the front and back sides of the aluminum-plastic film, the corresponding pump 10 can be started. In addition, there is a difference in the color of the two sides of the aluminum-plastic film. Although the aluminum-plastic film is silver-white as a whole, because the materials bonded on the two sides are different, the outer surface of the aluminum-plastic film is usually light-colored, while the inner surface is usually dark-colored. This feature is used to realize the recognition of the color of the aluminum-plastic film.

[0039] In one embodiment of the present invention, the device utilizes the characteristic that the aluminum-plastic film is deformed in a specific direction during molding. When the aluminum-plastic film is placed on the supporting platform 4, the telescopic driving member 8 will drive the pressing platform 7 to move downward, and the pressing platform 7 will press the aluminum-plastic film in the middle in cooperation with the supporting platform 4. Because the two sides of the aluminum-plastic film have different functional characteristics, the device adopts the form of cooperation between the main mold 9 and the auxiliary mold 6, and uses different pumps 10 to carry out gas delivery, so that the aluminum-plastic film can be deformed in different directions. Therefore, in the actual operation process, when placing the aluminum-plastic film, there is no need to pay attention to the front and back sides of the aluminum-plastic film. The device can selectively perform stretching molding in two directions, and the actual operation is more convenient and quick.

[0040] like Figure 2 , Figure 5 and Figure 6 As shown, as a preferred embodiment of the present invention, the second air channel includes a first channel 14 opened at the bottom of the support platform 4, and a second channel 15 opened at the bottom of the auxiliary mold 6. The first channel 14 and the second channel 15 are in a docking state with the second telescopic tube 12 as the position corresponding to each other. One-way seals 16 are arranged in the first channel 14 and the second channel 15. The one-way seal 16 is used to enable the pump 10 at the bottom of the base 1 to only deliver gas to the inside of the auxiliary mold 6. The internal structures of the first air channel and the second air channel are the same.

[0041] In one case of the present embodiment, the one-way seal 16 comprises a bracket 1601 transversely fixedly connected to the first channel 14, an annular limit groove 17 is provided on the top of the second channel 15 facing the inside of the auxiliary mold 6, a plunger 1603 matching the annular limit groove 17 is provided in the second channel 15, and the bracket 1601 and the plunger 1603 are connected by an elastic reset member 1602, and the elastic reset member 1602 can be in the form of a spring, and of course, it can also be in the form of a spring telescopic rod. Generally speaking, a conventional aluminum-plastic film stretching forming device only uses one mold, so it will only deform in one direction, so the conveying The passage of gas does not affect the surface of the aluminum-plastic film, but the device can perform double-sided molding. For example, when the aluminum-plastic film is molded using the auxiliary mold 6, gas will enter the upper main mold 9. When the aluminum-plastic film is against the inner wall of the auxiliary mold 6, the second channel 15 will cause the aluminum-plastic film to produce additional deformation. Therefore, a plunger 1603 is provided to close the second channel 15 to make it a flat inner wall. That is, when gas does not need to be transported in the auxiliary mold 6, the gas delivery channel corresponding to the auxiliary mold 6 will be closed, effectively reducing unnecessary deformation of the aluminum-plastic film. Conversely, if the main mold 9 is used for stretching molding, the gas delivery channel on the main mold 9 will also be closed.

[0042] like Figure 2 , Figure 4 , Figure 5 and Figure 7 As shown, as a preferred embodiment of the present invention, the pump 10 at the bottom of the base 1 is also provided with a second output end, and the second output end is a third telescopic pipe 18 located between the support platform 4 and the base 1. A plurality of straight air channels 19 are provided on both sides of the auxiliary mold 6 on the support platform 4, and the plurality of straight air channels 19 are connected through an annular air channel 20. The bottom of one of the straight air channels 19 is in a through state and is connected to the third telescopic pipe 18, and the bottoms of the remaining straight air channels 19 are all in a closed state.

[0043] In one case of the present embodiment, generally speaking, the aluminum-plastic film is rolled, and the device places the block-shaped aluminum-plastic film cut from the aluminum-plastic film roll onto the supporting platform 4. Therefore, the aluminum-plastic film on the supporting platform 4 is easy to be bent. If the pressing method of the pressing platform 7 and the supporting platform 4 is directly used, the aluminum-plastic film is easy to have problems such as deviation and wrinkles. Therefore, it is necessary to flatten and fix the aluminum-plastic film in advance. At this time, the gas can be extracted by the pump 10, so that the multiple straight air channels 19 produce an adsorption effect, so that the aluminum-plastic film can be flatly attached to the supporting platform 4. In addition, if the bending amount of the aluminum-plastic film is large, this adsorption method will not be effective, mainly because the gap between the aluminum-plastic film and the plane of the supporting platform 4 is large. Therefore, a plurality of the columns 3 are slidably sleeved with a ring body 21, and the plurality of ring bodies 21 are fixedly connected by a ring frame 22. Four telescopic members 23 are fixedly connected to the ring frame 22. The telescopic members 23 are arranged in four directions around the supporting platform 4, and the output end of the telescopic member 23 is A push plate 24 is arranged toward the bearing platform 4, and both sides of the base 1 are fixedly connected with vertically arranged lifting members 25, and the top of the lifting member 25 is connected to the annular frame 22, and the lifting member 25 is used to drive the annular frame 22 to move in the vertical direction on the column 3, and the telescopic member 23 is used to drive the push plate 24 to move horizontally. The lifting member 25 and the telescopic member 23 are generally the same type of mechanical structure, such as an electric telescopic rod, a hydraulic telescopic rod, etc. When the aluminum-plastic film is placed on the bearing platform 4, it can The lifting member 25 is used to control the pushing plate 24 to move upward, and then the telescopic member 23 is used to control the pushing plate 24 to move horizontally, so that the pushing plate 24 is located above the aluminum-plastic film. Then, the pushing plate 24 moves downward to initially press the aluminum-plastic film, and then the adsorption effect can make the aluminum-plastic film flatly attached to the supporting platform 4. Of course, the pushing plate 24 also has the function of adjusting the position of the aluminum-plastic film, which can be achieved by controlling the pushing plate 24 to move horizontally using the telescopic member 23. Of course, the step of adjusting the position of the aluminum-plastic film is before the step of pre-fixing the aluminum-plastic film.

[0044] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0045] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0046] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A stretching forming device for producing aluminum-plastic film, comprising a base (1), a cabinet (2) is arranged on the top of the base (1), and the device is characterized in that: Also includes: A bearing assembly, wherein the chassis (2) and the base (1) are connected via a plurality of separately arranged columns (3), the bearing assembly comprises a bearing platform (4) located between the plurality of columns (3), the bottom of the bearing platform (4) is fixedly connected to the base (1) via a plurality of vertically arranged elastic telescopic rods (5), and a secondary mold (6) is arranged on the bearing platform (4); A pressing assembly, the pressing assembly being located between the carrier platform (4) and the chassis (2), the pressing assembly comprising a pressing platform (7) located between a plurality of columns (3), the pressing platform (7) and the chassis (2) being connected via telescopic drive members (8) disposed on both sides, the chassis (2) being used to drive the pressing platform (7) to move in a vertical direction via the telescopic drive member (8), the pressing platform (7) being provided with a main mold (9) corresponding to the position of the auxiliary mold (6); A pump (10) is provided inside the chassis (2) and at the bottom of the base (1); the pump (10) inside the chassis (2) is connected to the pressing platform (7) via a first telescopic pipe (11); a first air passage communicating with the first telescopic pipe (11) is provided inside the pressing platform (7) and the main mold (9); the bearing platform (4) is connected to the pump (10) at the bottom of the base (1) via a second telescopic pipe (12); a second air passage communicating with the second telescopic pipe (12) is provided inside the bearing platform (4) and the auxiliary mold (6); The second air channel comprises a first hole (14) opened at the bottom of the carrier platform (4), and a second hole (15) opened at the bottom of the auxiliary mold (6), the first hole (14) and the second hole (15) are in a docking state with the second telescopic pipe (12) as the corresponding position, and a one-way seal (16) is arranged in the first hole (14) and the second hole (15), and the one-way seal (16) is used to enable the pump (10) at the bottom of the base (1) to only deliver gas to the inside of the auxiliary mold (6), and the internal structure of the first air channel and the second air channel is the same; The one-way seal (16) comprises a bracket (1601) which is laterally fixedly connected to the first channel (14); an annular limiting groove (17) is provided on the top of the second channel (15) on the side facing the inside of the auxiliary mold (6); a plunger (1603) which matches the annular limiting groove (17) is provided in the second channel (15); the bracket (1601) and the plunger (1603) are connected via an elastic reset member (1602); A plurality of the columns (3) are all slidably sleeved with a ring body (21), and the plurality of the ring bodies (21) are fixedly connected via a ring frame (22). Four telescopic members (23) are fixedly connected to the ring frame (22), and the telescopic members (23) are arranged in four directions around the bearing platform (4). The output end of the telescopic member (23) is a push plate (24) arranged toward the bearing platform (4). Both sides of the base (1) are fixedly connected with a vertically arranged lifting member (25), and the top of the lifting member (25) is connected to the ring frame (22). The lifting member (25) is used to drive the ring frame (22) to move in the vertical direction on the column (3), and the telescopic member (23) is used to drive the push plate (24) to move horizontally.

2. The stretching forming device for aluminum-plastic film production according to claim 1, characterized in that: The supporting platform (4) and the pressing platform (7) are both provided with a mounting slot (13) with an open side. The main mold (9) and the auxiliary mold (6) are respectively fixedly mounted on the pressing platform (7) and the supporting platform (4) via the mounting slot (13). The main mold (9) and the auxiliary mold (6) have the same structure, and the internal structures of the two are also the same.

3. The stretching forming device for producing aluminum-plastic film according to claim 2, characterized in that: The pump (10) at the bottom of the base (1) is also provided with a second output end, and the second output end is a third telescopic pipe (18) located between the support platform (4) and the base (1). A plurality of straight air channels (19) are provided on the support platform (4) on both sides of the auxiliary mold (6). The plurality of straight air channels (19) are connected through an annular air channel (20). The bottom of one of the straight air channels (19) is in a through state and is connected to the third telescopic pipe (18), and the bottoms of the remaining straight air channels (19) are all in a closed state.

4. The stretching forming device for producing aluminum-plastic film according to claim 1, characterized in that: A plurality of arc-shaped guide pieces (26) are fixedly connected to the side of the pressing platform (7), and the arc-shaped guide pieces (26) are in contact with the surface of the column (3). When the pressing platform (7) moves in the vertical direction, the arc-shaped guide pieces (26) slide on the column (3).

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