Tray packing material plastic uptake forming equipment and plastic uptake forming method

Abstract

The invention discloses a Tray packing material plastic uptake forming device and a plastic uptake forming method, the Tray packing material plastic uptake forming device comprises a machine shell, the surface of the machine shell is sunken downwards to form a cavity, and a mold mechanism is arranged in the cavity in an up-down displacement mode; the mold mechanism comprises a seat body, a mold body is arranged on the upper surface of the seat body, a vacuumizing box is arranged on the lower surface of the seat body, a plurality of holes communicated with the vacuumizing box are formed in the mold body, and the lower end of the vacuumizing box is communicated with a butt joint; a sliding rail is arranged on the side face of the machine shell, a heating bin is arranged at one end of the sliding rail in a sliding mode, and an edge cutting mechanism is arranged at the other end of the sliding rail in a sliding mode. The heating bin or the edge cutting mechanism can move to the position above the machine shell. The problems that according to an existing tray plastic uptake process, a plastic hard sheet generally needs to be heated firstly and then transferred to a mold for plastic uptake, then the edge of a formed product is cut, the process needs to be independently carried out on different devices, the machining efficiency is not high, and the yield is low are solved.

Description

Technical Field

[0001] The present invention relates to the manufacturing field of tray packaging materials, and in particular to a tray packaging material blister forming device and a blister forming method. Background Art

[0002] At present, the demand for magnesium alloy components is increasing, and the demand for product packaging trays is also increasing accordingly. The packaging tray is generally manufactured through the blister process, that is, the flat plastic hard sheet is heated and softened, and then vacuum-adsorbed on the mold surface and cooled to form. For example, the Chinese patent with patent number CN205915671U provides a blister mold for blister molding workpieces. The blister mold includes a bottom mold and an upper mold, and the upper mold is detachably arranged on the bottom mold. The bottom mold includes a bottom plate and an air guide groove that is arranged through the bottom plate. A plurality of molding cavities are arranged through the upper mold, and the shapes of the plurality of molding cavities are similar to the shape of the workpiece, and the plurality of molding cavities are respectively connected to the air guide grooves. The existing tray blister process generally requires heating the plastic hard sheet first, and then transferring it to the mold for blister molding. Thereafter, the edges of the molded product are cut, and it needs to be carried out separately on different equipment, resulting in low processing efficiency and low output. Summary of the Invention

[0003] The purpose of the present invention is to provide a tray packaging material blister forming device and a blister forming method, which solves the problems of the existing tray packaging material blister forming process, which generally requires first heating a plastic hard sheet and then transferring it to a mold for blister forming, and then trimming the edges of the molded product. These processes need to be performed separately on different equipment, resulting in low processing efficiency and low output.

[0004] To achieve the above-mentioned object, the present invention provides a tray packaging material blister molding device, the tray packaging material blister molding device comprising a housing, the housing surface is recessed downward to form a cavity, and a mold mechanism is disposed in the cavity so as to be displaceable up and down;

[0005] The mold mechanism includes a base, the upper surface of the base is provided with a mold body, the lower surface of the base is provided with a vacuum box, a plurality of holes connected to the vacuum box are formed in the mold body, and the lower end of the vacuum box is connected to a docking joint;

[0006] A slide rail is provided on the side of the casing, a heating chamber is slidably provided at one end of the slide rail, and a trimming mechanism is slidably provided at the other end, so that the heating chamber or the trimming mechanism can be displaced to the top of the casing.

[0007] Preferably, a first cylinder is provided in the cavity, so that a piston rod of the first cylinder is connected to the seat body.

[0008] Preferably, a pressing frame is hinged to the surface of the casing.

[0009] Preferably, a second cylinder is arranged on the slide rail on one side of the casing, and a piston rod of the second cylinder is connected to the heating chamber.

[0010] Preferably, the edge trimming mechanism includes a sliding frame slidably arranged on the slide rail, a rectangular blade is arranged on the sliding frame, and the rectangular blade can be displaced in the vertical direction.

[0011] Preferably, a sliding column is arranged on the sliding frame, a tool holder is slidably arranged up and down on the sliding column, the rectangular blade is fixed on the tool holder, a fixing frame is arranged on the sliding column, a third cylinder is fixed on the fixing frame, and a piston rod of the third cylinder is connected to the tool holder.

[0012] Preferably, a fourth cylinder is arranged on the slide rail, the fourth cylinder is located on the side of the casing far from the second cylinder, and a piston rod of the fourth cylinder is connected to the sliding frame.

[0013] Preferably, a vacuum pumping device is arranged in the casing, and the vacuum pumping device is communicated with the docking head through a pipeline.

[0014] The present invention also provides a thermoforming method, which is carried out by using the above-mentioned Tray tray packaging material thermoforming equipment, and includes:

[0015] 1), placing a plastic hard sheet on the surface of the casing and covering the upper opening of the casing;

[0016] 2), flipping the pressing frame to press the plastic hard sheet;

[0017] 3), turning on the second cylinder to move the heating chamber above the plastic hard sheet for heating and softening;

[0018] 4), after resetting the second cylinder, turning on the first cylinder to move the mold body above the casing;

[0019] 5), turning on the vacuum pumping device to complete thermoforming, then turning on the fourth cylinder to make the rectangular blade located above the mold body, turning on the third cylinder to make the rectangular blade move down, and cutting the edge of the thermoformed Tray tray.

[0020] The present invention provides a thermoforming device for Tray tray packaging materials. The thermoforming device for Tray tray packaging materials includes a machine shell. A cavity is formed by a downward depression on the surface of the machine shell. A mold mechanism is disposed in the cavity and can be displaced up and down. The mold mechanism includes a base body. A mold body is disposed on the upper surface of the base body. A vacuum pumping box is disposed on the lower surface of the base body. A plurality of holes communicating with the vacuum pumping box are formed in the mold body. A docking head is connected to the lower end of the vacuum pumping box. A slide rail is disposed on the side surface of the machine shell. A heating chamber is slidably disposed at one end of the slide rail, and a trimming mechanism is slidably disposed at the other end, such that the heating chamber or the trimming mechanism can be displaced above the machine shell. During the operation process, a plastic sheet is placed on the surface of the machine shell and covers the upper opening of the machine shell. The turning pressing frame is flipped to press the plastic sheet tightly. The second cylinder is turned on to displace the heating chamber above the plastic sheet for heating and softening. After the second cylinder is reset, the first cylinder is turned on to displace the mold body above the machine shell. The vacuum pumping device is turned on to complete thermoforming. Then, the fourth cylinder is turned on to position the rectangular blade above the mold body. The third cylinder is turned on to move the rectangular blade downward and cut the edge of the Tray tray formed by thermoforming. The thermoforming device for Tray tray packaging materials provided by the present invention can gradually perform operations of heating and softening, thermoforming, and trimming of the plastic sheet on the machine shell, greatly shortening the manufacturing cycle of the Tray tray and effectively improving the production capacity.

[0021] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific implementation, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the drawings:

[0023] Figure 1 is the first structural diagram of the thermoforming device for Tray tray packaging materials provided by the present invention;

[0024] Figure 2 is the second structural diagram of the thermoforming device for Tray tray packaging materials provided by the present invention;

[0025] Figure 3 is the structural diagram of the mold mechanism in the thermoforming device for Tray tray packaging materials provided by the present invention;

[0026] Figure 4 is the side view of the mold mechanism in the thermoforming device for Tray tray packaging materials provided by the present invention.

[0027] DESCRIPTION OF THE REFERENCE NUMERALS

[0028] 1 - Housing; 2 - Vacuum chamber; 3 - Connector; 4 - Base; 5 - Mould body; 6 - Hole; 7 - Pressing frame; 8 - Second cylinder; 9 - Heating chamber; 10 - Slide rail; 11 - Fourth cylinder; 12 - Sliding frame; 13 - Sliding column; 14 - Tool holder; 15 - Rectangular blade; 16 - Fixed frame; 17 - Third cylinder; 18 - First cylinder. Detailed implementation mode

[0029] The following will describe the detailed implementation mode of the present invention in conjunction with the accompanying drawings. It should be understood that the detailed implementation mode described here is only used to illustrate and explain the present invention and is not used to limit the present invention.

[0030] As Figures 1-4 shown: The present invention provides a Tray tray packaging material thermoforming device. The Tray tray packaging material thermoforming device includes a housing 1. A cavity is formed by a downward depression on the surface of the housing 1. A mould mechanism is disposed in the cavity and can be displaced up and down. The mould mechanism includes a base 4. A mould body 5 is disposed on the upper surface of the base 4. A vacuum chamber 2 is disposed on the lower surface of the base 4. A plurality of holes 6 communicating with the vacuum chamber 2 are formed in the mould body 5. A connector 3 is connected to the lower end of the vacuum chamber 2. A slide rail 10 is disposed on the side surface of the housing 1. A heating chamber 9 is slidably disposed at one end of the slide rail 10, and a trimming mechanism is slidably disposed at the other end, so that the heating chamber 9 or the trimming mechanism can be displaced above the housing 1. During the operation process, a plastic sheet is placed on the surface of the housing and covers the upper opening of the housing; the pressing frame is flipped to press the plastic sheet tightly; the second cylinder is turned on to displace the heating chamber above the plastic sheet for heating and softening; after the second cylinder is reset, the first cylinder is turned on to displace the mould body above the housing; the vacuum device is turned on to complete thermoforming, and then the fourth cylinder is turned on to position the rectangular blade above the mould body. The third cylinder is turned on to lower the rectangular blade and cut the edge of the thermoformed Tray tray. The Tray tray packaging material thermoforming device provided by the present invention can gradually perform heating and softening, thermoforming and trimming operations of the plastic sheet on the housing, greatly shortening the manufacturing cycle of the Tray tray and effectively improving the production capacity.

[0031] In a preferred implementation mode of the present invention, in order to drive the base to displace up and down, a first cylinder 18 is disposed in the cavity, so that the piston rod of the first cylinder 18 is connected to the base 4.

[0032] In a preferred implementation mode of the present invention, in order to be able to press the plastic sheet tightly on the surface of the housing for subsequent thermoforming, a pressing frame 7 is hinged to the surface of the housing 1. [[ID=IS]]

[0033] In a preferred embodiment of the present invention, in order to effectively drive the left - right displacement of the heating chamber, a second cylinder 8 is provided on the slide rail 10 on one side of the casing 1, and the piston rod of the second cylinder 8 is connected to the heating chamber 9.

[0034] In a preferred embodiment of the present invention, in order to facilitate the trimming operation of the edge of the formed product, the trimming mechanism includes a sliding frame 12 slidably provided on the slide rail 10. A rectangular blade 15 is provided on the sliding frame 12, and the rectangular blade 15 can be displaced in the vertical direction.

[0035] In a preferred embodiment of the present invention, in order to drive the up - down displacement of the rectangular blade for cutting, a sliding column 13 is provided on the sliding frame 12. A tool holder 14 is slidably provided up and down on the sliding column 13. The rectangular blade 15 is fixed on the tool holder 14. A fixed frame 16 is provided on the sliding column 13, and a third cylinder 17 is fixed on the fixed frame 16. The piston rod of the third cylinder 17 is connected to the tool holder 14.

[0036] In a preferred embodiment of the present invention, in order to drive the left - right displacement of the sliding frame, a fourth cylinder 11 is provided on the slide rail 10. The fourth cylinder 11 is located on the side of the casing 1 far from the second cylinder 8, and the piston rod of the fourth cylinder 11 is connected to the sliding frame 12.

[0037] In a preferred embodiment of the present invention, a vacuum - pumping device is provided inside the casing 1, and the vacuum - pumping device is communicated with the docking head 3 through a pipeline.

[0038] The present invention also provides a thermoforming method, which is carried out by using the above - mentioned Tray - tray packaging material thermoforming equipment, and includes:

[0039] 1. Place the plastic sheet on the surface of the casing 1 and cover the upper opening of the casing 1;

[0040] 2. Flip the pressing frame 7 to press the plastic sheet tightly;

[0041] 3. Turn on the second cylinder 8 so that the heating chamber 9 is displaced above the plastic sheet for heating and softening;

[0042] 4. After resetting the second cylinder 8, turn on the first cylinder 18 so that the mold body 5 is displaced above the casing 1;

[0043] 5. Turn on the vacuum - pumping device to complete thermoforming. Then turn on the fourth cylinder 11 so that the rectangular blade 15 is located above the mold body 5. Turn on the third cylinder 17 so that the rectangular blade 15 moves downwards and cuts the edge of the thermoformed Tray - tray.

[0044] The preferred embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solutions of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0045] In addition, it should be noted that, in the various specific technical features described in the above specific embodiments, without conflict, they can be combined in any appropriate manner. To avoid unnecessary repetition, the present invention will not separately describe various possible combination manners.

[0046] Furthermore, any combination can be made among various different embodiments of the present invention, as long as it does not violate the idea of the present invention, and it should also be regarded as the content disclosed by the present invention.

Claims

1. A blister forming device for Tray tray packaging materials, characterized in that, The Tray tray packaging material thermoforming equipment includes a machine shell (1). A cavity is formed by a downward depression on the surface of the machine shell (1), and a die mechanism is disposed in the cavity so as to be displaceable up and down. The die mechanism includes a base body (4). A die body (5) is disposed on the upper surface of the base body (4), and a vacuum pumping box (2) is disposed on the lower surface of the base body (4). A plurality of holes (6) communicating with the vacuum pumping box (2) are formed in the die body (5), and a docking head (3) is communicated with the lower end of the vacuum pumping box (2). A slide rail (10) is disposed on the side surface of the machine shell (1). A heating bin (9) is slidably disposed at one end of the slide rail (10), and a trimming mechanism is slidably disposed at the other end, so that the heating bin (9) or the trimming mechanism can be displaced above the machine shell (1).

2. The blister forming equipment for the Tray tray packaging material, characterized in that A first cylinder (18) is disposed in the cavity, so that the piston rod of the first cylinder (18) is connected to the base body (4).

3. The Tray tray packaging material thermoforming equipment according to claim 2, characterized in that, A pressing frame (7) is hinged on the surface of the machine shell (1).

4. The Tray tray packaging material thermoforming equipment according to claim 3, characterized in that, A second cylinder (8) is disposed on the slide rail (10) on one side of the machine shell (1), and the piston rod of the second cylinder (8) is connected to the heating bin (9).

5. The blister forming equipment for the Tray tray packaging material, characterized in that, The trimming mechanism includes a sliding frame (12) slidably disposed on the slide rail (10). A rectangular blade (15) is disposed on the sliding frame (12), and the rectangular blade (15) can be displaced in the vertical direction.

6. The blister forming equipment for the Tray tray packaging material, characterized in that A sliding column (13) is disposed on the sliding frame (12). A tool holder (14) is slidably disposed up and down on the sliding column (13). The rectangular blade (15) is fixed on the tool holder (14). A fixing frame (16) is disposed on the sliding column (13), and a third cylinder (17) is fixed on the fixing frame (16). The piston rod of the third cylinder (17) is connected to the tool holder (14).

7. The blister forming equipment for the Tray tray packaging material, characterized in that A fourth cylinder (11) is disposed on the slide rail (10). The fourth cylinder (11) is located on the side of the machine shell (1) far from the second cylinder (8), and the piston rod of the fourth cylinder (11) is connected to the sliding frame (12).

8. The blister forming device for the Tray tray packaging material, characterized in that, A vacuum pumping device is disposed in the machine shell (1), and the vacuum pumping device is communicated with the docking head (3) through a pipeline.

9. A thermoforming method, characterized in that, The thermoforming method is carried out by using the Tray tray packaging material thermoforming equipment according to claim 8, and includes: 1), placing a plastic hard sheet on the surface of the machine shell (1) and covering the upper end opening of the machine shell (1); 2), flipping the pressing frame (7) to press the plastic hard sheet; 3), turning on the second cylinder (8) to displace the heating bin (9) above the plastic hard sheet for heating and softening; 4), after resetting the second cylinder (8), turning on the first cylinder (18) to displace the die body (5) above the machine shell (1); 5), turning on the vacuum pumping device to complete thermoforming, and then turning on the fourth cylinder (11) to position the rectangular blade (15) above the die body (5). Turning on the third cylinder (17) to move the rectangular blade (15) downward and cut the edge of the thermoformed Tray tray.

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