Plastic uptake forming device for bags and suitcases

Abstract

The utility model discloses a plastic uptake forming device for bags and suitcases, and relates to the technical field of plastic uptake forming equipment for bags and suitcases. Comprising a plastic uptake machine frame, a heating furnace installed in the middle of the plastic uptake machine frame, a movable containing frame plate arranged in the middle of one side of the plastic uptake machine frame and used for containing thermoplastic sheets, and a lifting pressing frame structure arranged on the upper side of the plastic uptake machine frame and used for pressing the thermoplastic sheets on the movable containing frame plate, and further comprises a male mold and a female mold, when the male mold is embedded into the female mold, the thermoplastic sheet is ejected into the surface of the inner cavity at the bottom of the female mold, so that a corresponding box shell is formed, different concave-convex texture grooves are designed in the inner cavity of the female mold according to requirements, and air is sucked into the inner cavity from outside through the air holes in the female mold, so that the outer surface of the box shell formed in the inner cavity of the female mold can be sucked into the concave-convex texture grooves at the moment; and the outer surface of the box shell formed by the thermoplastic sheet is more fully and tightly contacted with the inner cavity of the female die, so that the pattern formed by plastic suction on the surface of the box shell is more delicate and finer.

Description

Technical Field

[0001] The utility model discloses a bag plastic blister forming device, which relates to the technical field of bag plastic blister forming equipment. Background Art

[0002] Luggage and bag blister forming is a plastic processing technology, which is mainly used to manufacture the outer shell of luggage, such as trolley cases, travel cases, etc. This process usually involves adsorbing thermoplastic sheets (such as polyvinyl chloride PVC, polycarbonate PC, etc.) to the metal or plastic mold of the luggage through a vacuum blister forming machine to form the outer shell of the luggage. Specifically, when the existing conventional blister forming machine is in use, the thermoplastic sheet needs to be placed on a designated movable placement frame plate, and this movable placement frame plate drives the thermoplastic sheet to move to the bottom of the heating furnace for preliminary softening and then return to its position, and the softened plastic on the movable placement frame plate is pressed by the lifting and pressing frame structure, and then the bottom mold lifts the softened thermoplastic sheet upward and performs vacuum adsorption to form the outer shell of the luggage. This blister forming structure can only be applied to some relatively simple and smooth box shells, which is difficult to meet the production of the factory and the needs of users. In order to allow the box surface to form a more refined pattern shape during blister forming, it is necessary to propose a luggage and bag blister forming device to improve the existing technology. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model aims to provide a bag vacuum forming device to solve the problems mentioned in the above background technology.

[0004] In order to achieve the above-mentioned purpose, the utility model is realized by the following technical scheme: a bag blister forming device, comprising a blister frame, a heating furnace installed in the middle of the blister frame, a movable placement frame plate arranged in the middle of one side of the blister frame for placing thermoplastic sheets, and a lifting and pressing frame structure arranged on the upper side of the blister frame for pressing the thermoplastic sheets on the movable placement frame plate, and also comprising a male mold and a female mold that are lifted and engaged with each other, and the surfaces of the male mold and the female mold are both distributed with a plurality of air holes connected with the inner cavity, and the inner cavity surface of the female mold is provided with inner concave-convex texture grooves, and the inner concave-convex texture grooves correspond to some of the air holes;

[0005] The thermoplastic sheet on the movable placement frame is arranged between the male mold and the female mold.

[0006] Based on the above technical solution, an upper vacuum cover is set on the upper side of the blister frame, the mother mold is installed at the bottom of the vacuum cover, and the air holes on the mother mold are connected to the inside of the vacuum cover. The vacuum cover is connected to an upper vacuum air pump through an air pipe.

[0007] On the basis of the above technical solution, an upper lifting push rod is vertically installed on the upper side of the blister frame, and the telescopic end of the upper lifting push rod is connected to the top of the vacuum cover.

[0008] Based on the above technical solution, a closed box is installed on the lower side of the blister frame, and the movable placement frame is arranged on the upper side of the closed box. An opening is arranged on the upper side of the closed box, and the opening corresponds to the hollowed-out part in the middle of the movable placement frame.

[0009] Based on the above technical solution, the male mold lifting device is arranged inside the closed box and corresponds to the lower side of the thermoplastic sheet placed in the middle of the movable placing frame plate. The inner cavity of the male mold is closed, and the bottom of the male mold is connected to a lower vacuum air pump through an air pipe.

[0010] On the basis of the above technical solution, a lower lifting push rod is vertically installed at the bottom of the closed box, a horizontal plate is installed at the telescopic end of the lower lifting push rod, and the male mold is installed on the upper side of the horizontal plate.

[0011] On the basis of the above technical solution, the male mold and the female mold are both convexly arranged upward, and the top surface of the male mold pushes the softened thermoplastic sheet into the bottom inner cavity surface of the female mold.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] The utility model is characterized in that a female mold and a male mold are respectively provided on the upper and lower sides of a lifting and pressing frame structure, and air holes are provided on the surfaces of the male mold and the female mold that are connected with the inner cavity. The air holes on the male mold blow air from the inner cavity to the outside, and the heated and softened thermoplastic sheet is first blown up, and then the male mold stops blowing and then pushes the thermoplastic sheet upward. At this time, the female mold is displaced downward to cover the male mold, that is, the state of the male mold being embedded in the female mold, so that the thermoplastic sheet is pushed into the inner cavity surface of the bottom of the female mold, thereby forming a corresponding box shell, and the inner cavity of the female mold is designed with different inner concave-convex texture grooves according to needs, and the air holes on the female mold suck air from the outside to the inner cavity, so that the outer surface of the box shell formed by the inner cavity of the female mold can be sucked into the inner concave-convex texture grooves, so that the outer surface of the box shell formed by the thermoplastic sheet is more fully and closely contacted with the inner cavity of the female mold, so that the pattern formed by the vacuum forming on the surface of the box shell is more refined and delicate, and can be applicable to the vacuum forming of different outer surfaces of the box, which has a more positive and beneficial use effect than the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a front view structural schematic diagram of the utility model;

[0017] Figure 3It is a front view structural diagram of the closed box and the upper vacuum cover of the utility model;

[0018] Figure 4 It is a schematic diagram of the internal side view of the closed box and the upper vacuum cover of the utility model;

[0019] In the figure: blister frame 1, movable placement frame plate 2, heating furnace 20, lifting and pressing frame structure 3, upper vacuum cover 4, closing box 5, upper vacuum air pump 6, lower vacuum air pump 7, male mold 8, female mold 9, inner concave and convex texture groove 91, upper lifting push rod 10, and lower lifting push rod 11. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] See also Figure 1-Figure 4The utility model provides a technical solution of a bag blister forming device: comprising a blister frame 1, a heating furnace 20 installed in the middle of the blister frame 1, a movable placing frame plate 2 arranged in the middle of one side of the blister frame 1 for placing thermoplastic sheets, and a lifting and pressing frame structure 3 arranged on the upper side of the blister frame 1 for pressing the thermoplastic sheets on the movable placing frame plate 2, and also comprising a male mold 8 and a female mold 9 that are lifted and engaged with each other, and a plurality of air holes that are connected to the inner cavity are distributed on the surfaces of the male mold 8 and the female mold 9, and the female mold 9 The inner cavity surface is provided with an inner concave-convex texture groove 91, and the inner concave-convex texture groove 91 corresponds to part of the air holes. The thermoplastic sheet on the movable placement frame plate 2 is arranged between the male mold 8 and the female mold 9. Both the male mold 8 and the female mold 9 are arranged to bulge upward. The air holes on the male mold 8 are first blown from the inner cavity to the outside, and the heated and softened thermoplastic sheet is first blown upward. Then the male mold 8 stops blowing and then pushes the thermoplastic sheet upward. At this time, the female mold 9 moves downward to cover the male mold 8, that is, the male mold 8 is embedded in the female mold 9, so that the thermoplastic sheet The material is pushed into the inner cavity surface of the bottom of the female mold 9 to form a corresponding box shell, and the inner cavity of the female mold 9 is designed with different inner concave-convex texture grooves 91 according to needs. The air holes on the female mold 9 suck air from the outside to the inner cavity, so that the outer surface of the box shell formed in the inner cavity of the female mold 9 can be correspondingly sucked into the inner concave-convex texture grooves 91, so that the outer surface of the box shell formed by the thermoplastic sheet is more fully and closely contacted with the inner cavity of the female mold 9, so that the pattern formed by the vacuum forming on the surface of the box shell is more delicate and exquisite; and the male mold 8 can effectively By pressing against the lower side of the molding box shell, the female mold 9 effectively presses against the upper side of the molding box shell, so that the male mold 8 and the female mold 9 press against each other to form a more stable thermoplastic sheet. When the male mold 8 presses against the thermoplastic sheet, the lower side of the box shell can be adsorbed through the surface pores, that is, when the male mold 8 and the female mold 9 press against the thermoplastic sheet, they can cooperate with each other to perform vacuum molding on the upper and lower sides of the thermoplastic sheet, and the inner side of the female mold 9 has certain inner concave-convex texture grooves 91 on the pores, which can form finer patterns, textures and shapes.

[0022] In the above technical scheme, an upper vacuum hood 4 is provided on the upper side of the blister frame 1 for lifting and lowering, the master mold 9 is installed at the bottom of the vacuum hood 4, and the air holes on the master mold 9 are connected to the inside of the vacuum hood 4, the vacuum hood 4 is externally connected to an upper vacuum air pump 6 through an air pipe, the upper vacuum air pump 6 is installed on the top of the blister frame 1, and the upper side of the master mold 9 is arranged in the inner cavity of the vacuum hood 4, so that the upper vacuum air pump 6 sucks air into the vacuum hood 4, and the negative pressure generated in the vacuum hood 4 acts on each air hole on the master mold 9, so that each air hole of the master mold 9 can be evenly sucked, thereby completing the blister molding of the pattern, texture and shape on the upper surface of the molded box shell, and in order to realize the lifting and displacement of the master mold 9, an upper lifting push rod 10 is vertically installed on the upper side of the blister frame 1, and the telescopic end of the upper lifting push rod 10 is connected to the top of the vacuum hood 4, and the lifting and displacement of the vacuum hood 4 and the master mold 9 are realized by the telescopic movement of the upper lifting push rod 10.

[0023] In the above technical scheme, a closed box 5 is installed at the lower side of the blister frame 1, and the movable placement frame plate 2 is arranged on the upper side of the closed box 5. The upper side of the closed box 5 is provided with an opening, so that when the lifting and pressing frame structure 3 presses down the four sides of the blister sheet placed on the movable placement frame plate 2, the gas in the closed box 5 is sealed by the blister sheet to prevent gas from escaping, and the male mold 8 is lifted and arranged inside the closed box 5 and corresponds to the lower side of the thermoplastic sheet placed in the middle of the movable placement frame plate 2. The inner cavity of the male mold 8 is closed, and the bottom of the male mold 8 A lower vacuum air pump 7 is externally connected through an air pipe, so that the blowing and suction of the lower vacuum air pump 7 act on each air hole of the public mold 8. The lower vacuum air pump 7 is installed at the bottom of the blister frame 1. The opening of the closed box 5 corresponds to the hollow part in the middle of the movable placement frame plate 2. The setting of the opening is mainly to allow the public mold 8 to directly correspond to the thermoplastic sheet placed in the hollow part in the middle of the movable placement frame plate 2 when it moves up and down, so that the heated thermoplastic sheet can be bulged faster when the public mold 8 blows, and the lower side of the formed box shell is blistered when the public mold 8 inhales.

[0024] Furthermore, in order to enable the male mold 8 to be able to rise and fall in the closed box 5, a lower lifting push rod 11 is vertically installed at the bottom of the closed box 5, and a horizontal plate is installed at the telescopic end of the lower lifting push rod 11. The male mold 8 is installed on the upper side of the horizontal plate to keep the male mold 8 on a horizontal line, and the horizontal plate can seal the inner cavity at the bottom of the male mold 8. They can be tightly attached to each other through a sealing ring and then locked with screws. The lower vacuum air pump 7 passes through the closed box 5 through an air pipe, and is connected to the inner cavity at the bottom of the male mold 8 through the bottom of the horizontal plate. Such a design is relatively reasonable and will not affect the lifting of the male mold 8.

[0025] When in use, the lifting and pressing frame structure 3 moves downward to press the thermoplastic sheet heated by the heating furnace 20 on the movable placement frame plate 2. A part of the middle part of the heated thermoplastic sheet will droop downward. Through the blowing action of the lower vacuum air pump 7, the air holes on the male mold 8 are blown from the inner cavity to the outside first, and the thermoplastic sheet drooping after heating and softening is blown upward. The horizontal plate and the male mold 8 are pushed upward by the lower lifting push rod 11 to support the softened thermoplastic sheet. Then, after the male mold 8 stops blowing, the softened part of the thermoplastic sheet droops downward and adheres to the upper side of the male mold 8. At this time, the telescopic end of the upper lifting push rod 10 extends downward, driving the upper vacuum cover 4 and the female mold 9 to move downward, so that the female mold 9 covers the male mold 8, that is, the male mold 8 is embedded in the female mold 9, so that the thermoplastic sheet is pushed into the inner cavity surface at the bottom of the female mold 9, thereby A corresponding box shell is formed, and the inner surface of the mother mold 9 is designed with a concave-convex texture groove 91. Through the suction effect of the upper vacuum air pump 6, the vacuum cover 4 generates negative pressure, and the air holes on the mother mold 9 are allowed to suck air from the outside to the inner cavity, so that the outer surface of the box shell formed by the inner cavity of the mother mold 9 can be correspondingly sucked into the inner concave-convex texture groove 91, so that the outer surface of the box shell formed by the thermoplastic sheet is in more full and close contact with the inner cavity of the mother mold 9, so that the pattern formed by the vacuum forming on the surface of the box shell is more refined and delicate; at this time, the lower vacuum air pump 7 can also suck air, so that the male mold 8 can also adsorb the lower side of the box shell through the surface air holes, and cooperate with each other to perform vacuum forming on the upper and lower sides of the thermoplastic sheet. After the vacuum forming is completed, the upper lifting push rod 10 and the lower lifting push rod 11 are retracted to return the mother mold 9 and the male mold 8 to their positions.

[0026] It should be noted that the utility model is a bag blister forming device, which mainly improves the above structure. The functions, components and structures not mentioned can be implemented by using components and structures in the prior art that can achieve corresponding functions.

[0027] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0028] 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 bag blister forming device, comprising a blister frame (1), a heating furnace (20) mounted in the middle of the blister frame (1), a movable placement frame plate (2) disposed in the middle of one side of the blister frame (1) for placing thermoplastic sheets, and a lifting and pressing frame structure (3) disposed on the upper side of the blister frame (1) for pressing the thermoplastic sheets on the movable placement frame plate (2), characterized in that: It comprises a male mold (8) and a female mold (9) that are mutually lifted and engaged, wherein the surfaces of the male mold (8) and the female mold (9) are both distributed with a plurality of air holes that are connected to the inner cavity, and the inner cavity surface of the female mold (9) is provided with an inner concave-convex texture groove (91), and the inner concave-convex texture groove (91) corresponds to some of the air holes; The thermoplastic sheet on the movable placement frame (2) is arranged between the male mold (8) and the female mold (9); The air holes on the male mold (8) blow air from the inner cavity to the outer side, blowing the heated and softened thermoplastic sheet upward. The male mold (8) stops blowing air and then pushes the thermoplastic sheet upward. At this time, the female mold (9) moves downward to cover the male mold (8), allowing the thermoplastic sheet to be pushed into the inner cavity surface of the bottom of the female mold (9), thereby forming a corresponding box shell. The air holes on the female mold (9) suck air from the outside to the inner cavity, so that the outer surface of the box shell formed in the inner cavity of the female mold (9) can be sucked into the inner concave-convex texture groove (91), so that the outer surface of the box shell formed by the thermoplastic sheet is in close contact with the inner cavity of the female mold (9).

2. The plastic forming device for bags according to claim 1, characterized in that: An upper vacuum cover (4) is provided on the upper side of the blister frame (1) for lifting, the mother mold (9) is installed at the bottom of the vacuum cover (4), and the air holes on the mother mold (9) are connected to the inside of the vacuum cover (4), and the vacuum cover (4) is externally connected to an upper vacuum air pump (6) through an air pipe.

3. The plastic blister forming device for bags according to claim 2, characterized in that: An upper lifting push rod (10) is vertically installed on the upper side of the blister frame (1), and the telescopic end of the upper lifting push rod (10) is connected to the top of the vacuum cover (4).

4. The plastic blister forming device for bags according to claim 1, characterized in that: A closed box (5) is installed on the lower side of the blister frame (1), and the movable placement frame plate (2) is arranged on the upper side of the closed box (5). An opening is provided on the upper side of the closed box (5), and the opening corresponds to the hollowed-out portion in the middle of the movable placement frame plate (2).

5. The plastic blister forming device for bags according to claim 4, characterized in that: The male mold (8) is lifted and arranged inside the closed box (5) and corresponds to the lower side of the thermoplastic sheet placed in the middle of the movable placement frame (2). The inner cavity of the male mold (8) is closed, and the bottom of the male mold (8) is connected to a lower vacuum air pump (7) through an air pipe.

6. A bag blister forming device according to claim 4 or 5, characterized in that: A lower lifting push rod (11) is vertically installed at the bottom of the closed box (5), a horizontal plate is installed at the telescopic end of the lower lifting push rod (11), and the male mold (8) is installed on the upper side of the horizontal plate.

7. A bag blister forming device according to claim 1 or 2, characterized in that: The male mold (8) and the female mold (9) are both arranged to protrude upward, and the top surface of the male mold (8) pushes the thermoplastic sheet into the bottom inner cavity surface of the female mold (9).

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