Plastic uptake forming mechanism with high sealing performance

Abstract

The utility model relates to the technical field of blister equipment, and discloses a high-sealing-performance blister forming mechanism which comprises an operation table, a blister frame is arranged on the operation table, a blister base located on the upper surface of the operation table is arranged in the blister frame, and a telescopic device is fixedly installed on the upper surface of the blister frame. The telescopic lower end of the telescopic device penetrates through the blister frame and is fixedly provided with a pressing plate matched with the blister base, a cavity is formed in the blister base, and a negative pressure fan is arranged on the upper surface of the operation table. The first wedge-shaped extrusion block, the second wedge-shaped extrusion block and the like are arranged, the telescopic end of the telescopic device drives the pressing plate to move downwards, the first wedge-shaped extrusion block makes contact with the thermal plastic plate, the edge of the thermal plastic plate is clamped between the first wedge-shaped extrusion block and the second wedge-shaped extrusion block, the edge of the thermal plastic plate is subjected to downward thrust, and therefore the thermal plastic plate can be extruded. The middle of the thermal plastic plate is tensioned and flattened, at the moment, the lower surface of the pressing plate and the upper surface of the plastic uptake base are tightly pressed in a sealed mode, and the internal sealing effect is improved when the pressing plate and the plastic uptake base are subjected to mold closing.

Description

Technical Field

[0001] The utility model relates to the technical field of blister equipment, in particular to a blister forming mechanism with high sealing performance. Background Art

[0002] Blistering is a plastic processing technology. The main principle is to heat and soften the flat plastic hard sheet, then use vacuum adsorption to the mold surface, and then cool it down to form. It is widely used in plastic packaging, lighting, advertising, decoration and other industries.

[0003] In order to improve the molding effect of blister molding, the prior art has made many improvements to blister molding equipment, such as the patent with patent publication number CN220242377U, which discloses a blister molding equipment, including a blister base, an upper groove platform that can be lifted and lowered is provided above the blister base, and a negative pressure fan is provided on one side of the blister base, an air inlet pipe is provided between the negative pressure fan and the blister base, and an exhaust pipe is connected between the negative pressure fan and the upper groove platform. The utility model is provided with a liftable upper groove platform, and the exhaust port of the negative pressure fan is connected with the groove part of the upper groove platform, so that the airflow discharged by the negative pressure fan reaches the inner groove of the upper groove platform, these gases can increase the air pressure inside the upper groove platform, further enhance the molding effect, and will not cause pressure loss to the workpiece, and the lower surface edge of the upper groove platform of the utility model is equipped with a sealing pad, and when the upper groove platform is pressed on the upper surface of the blister base, the inner groove can be sealed to ensure that the gas discharged by the negative pressure fan can be pressed on the upper surface of the plastic sheet.

[0004] The above patent has obvious beneficial effects, but still has the following shortcomings in actual operation:

[0005] In the prior art, during blister forming, it is necessary to preheat the thermoplastic plate to soften the thermoplastic plate, and then use a negative pressure fan to adsorb the softened thermoplastic plate onto the blister base for shaping. In the above-mentioned comparative document, the heated thermoplastic plate is placed on the upper end of the blister base, and the upper groove table is moved downward to compress and seal the softened thermoplastic plate. Since the heated thermoplastic plate is in a softened state, wrinkles may occur on the edge of the thermoplastic plate during the downward extrusion process of the upper groove table. When wrinkles occur on the edge of the thermoplastic plate, the sealing pad under the upper groove table cannot be completely sealed, thereby reducing the sealing of the cavity between the blister base and the upper groove table. Therefore, there is an urgent need in the art to improve the high-sealing blister forming mechanism to solve the defects of the prior art. Utility Model Content

[0006] In view of the deficiencies of the prior art, the utility model provides a high-sealing plastic blister molding mechanism, which improves the sealing effect inside the pressing plate and the plastic blister base when the pressing plate and the plastic blister base are molded together.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-sealing blister forming mechanism, comprising an operating table, a blister frame is provided on the operating table, a blister base located on the upper surface of the operating table is provided in the blister frame, a telescopic device is fixedly installed on the upper surface of the blister frame, the telescopic lower end of the telescopic device penetrates the blister frame and is fixedly installed with a pressing plate adapted to the blister base, a cavity is provided in the blister base, a negative pressure fan is provided on the upper surface of the operating table, a hose connected to the negative pressure fan and the cavity is provided, a plurality of suction holes are opened through the top of the cavity, a first wedge-shaped extrusion block is provided on the side of the pressure plate, and a second wedge-shaped extrusion block adapted to the first wedge-shaped extrusion block is fixedly connected to the side of the blister base;

[0008] When the pressing plate moves downward, the first wedge-shaped extrusion block first contacts the second wedge-shaped extrusion block, and then the lower surface of the pressing plate contacts and seals with the upper surface of the blister base.

[0009] Preferably, a plurality of fixed blocks are provided on the side of the pressure plate, a movable column penetrating the fixed block is fixedly connected to the upper surface of the first wedge-shaped extrusion block, and a spring sleeved on the side of the movable column is fixedly connected between the lower surface of the fixed block and the upper surface of the first wedge-shaped extrusion block.

[0010] Preferably, a movable block is fixedly connected to one side of the fixed block, a movable groove adapted to the movable block is opened on the side of the pressure plate, an adjusting rod passes through and is rotatably connected to the upper surface of the pressure plate, the adjusting rod passes through and is connected to the movable block, the lower end of the adjusting rod is rotatably connected to the bottom of the movable groove, and a limiting ring is threadedly connected to the side of the adjusting rod.

[0011] Preferably, a U-shaped sealing gasket is provided on the lower surface of the pressing plate, and a clamping groove adapted to the sealing gasket is provided on the upper end of the blister base.

[0012] Preferably, a displacement plate is slidably connected inside the blister frame, and symmetrical side walls inside the blister frame are provided with displacement grooves adapted to the two sides of the displacement plate, and the blister base is fixedly mounted on the upper surface of the displacement plate.

[0013] Preferably, a symmetrical first magnetic block is embedded on one side of the blister frame, and a second magnetic block adapted to the first magnetic block is embedded on one side of the displacement plate.

[0014] Preferably, the upper surface of the displacement plate is provided with a plurality of clamping blocks adapted to the blister base, the side of the clamping block is fixedly connected with a mounting block, the mounting block is penetrated by a fastening bolt whose end is threadedly connected to the upper surface of the displacement plate, and the displacement plate is provided with a plurality of mounting holes adapted to the fastening bolt.

[0015] In view of the shortcomings of the prior art, the utility model provides a high-sealing plastic forming mechanism, which overcomes the shortcomings of the prior art. The beneficial effects of the utility model are:

[0016] 1. In the utility model, by setting a first wedge-shaped extrusion block and a second wedge-shaped extrusion block, the telescopic end of the telescopic device drives the pressing plate to move downward, the first wedge-shaped extrusion block contacts the thermoplastic plate, the edge of the thermoplastic plate is clamped between the first wedge-shaped extrusion block and the second wedge-shaped extrusion block, the edge of the thermoplastic plate is subjected to a downward thrust, the middle part of the thermoplastic plate is tightened and flattened, at this time, the lower surface of the pressing plate and the upper surface of the blister base are sealed and pressed, thereby improving the sealing effect inside the pressing plate and the blister base when they are molded together.

[0017] 2. In the utility model, an adjusting rod is provided, and the position of the first wedge-shaped extrusion block is adjusted by rotating the adjusting rod, and the position of the adjusting rod is fixed by a limiting ring to ensure that the pressing force between the first wedge-shaped extrusion block and the second wedge-shaped extrusion block will not damage the thermoplastic plate.

[0018] 3. In the utility model, by providing a sealing gasket and a clamping groove, when the pressing plate moves down to the point where its lower surface contacts the upper surface of the blister base, the sealing gasket is clamped in the clamping groove, thereby improving the sealing performance between the pressing plate and the blister base after mold closing.

[0019] 4. In the utility model, a displacement plate and a displacement groove are provided, and the blister base part is pulled out of the blister frame through the displacement plate, and the thermoplastic plate is placed or taken out to complete the blister workpiece, which is convenient for operators to operate.

[0020] 5. In the utility model, by setting a clamping block and a mounting block, etc., using the cooperation of the mounting block, the fastening bolts and the mounting holes, the adsorption bases of different sizes can be replaced and fixed in position. When the blister base is replaced, the pressure plate that is also detachably fixed needs to be replaced, thereby improving the applicability of the overall device.

[0021] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures indicated in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 It is a structural schematic diagram of a partial cross-section of the displacement plate and the blister frame in the utility model;

[0025] Figure 3 This is a schematic structural diagram of a cross-section of the medium pressure plate and the blister base of the utility model;

[0026] Figure 4 for Figure 2 The enlarged structural diagram at A in the middle;

[0027] Figure 5 for Figure 2 The enlarged structural diagram at B in the middle;

[0028] Figure 6 for Figure 2 The enlarged structural diagram at C in the middle;

[0029] Figure 7 for Figure 3 Enlarged structural diagram at D in the middle.

[0030] In the figure: 1. operating table; 2. blister rack; 3. blister base; 4. telescopic device; 5. pressure plate; 6. cavity; 7. negative pressure fan; 8. hose; 9. suction hole; 10. first wedge-shaped extrusion block; 11. second wedge-shaped extrusion block; 12. moving column; 13. fixed block; 14. spring; 15. moving block; 16. moving groove; 17. adjusting rod; 18. limiting ring; 19. sealing gasket; 20. snap-fit ​​groove; 21. displacement plate; 22. displacement groove; 23. first magnetic block; 24. second magnetic block; 25. snap-fit ​​block; 26. mounting block; 27. fastening bolt; 28. mounting hole. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0032] See also Figure 1-Figure 7A high-sealing blister molding mechanism comprises an operating table 1, a blister frame 2 is provided on the operating table 1, a blister base 3 located on the upper surface of the operating table 1 is provided in the blister frame 2, a telescopic device 4 is fixedly installed on the upper surface of the blister frame 2, the telescopic lower end of the telescopic device 4 penetrates the blister frame 2 and is fixedly installed with a pressing plate 5 adapted to the blister base 3, a cavity 6 is provided in the blister base 3, a negative pressure fan 7 is provided on the upper surface of the operating table 1, a hose 8 is connected between the negative pressure fan 7 and the cavity 6, a plurality of suction holes 9 are opened through the top of the cavity 6, a first wedge-shaped extrusion block 10 is provided on the side of the pressing plate 5, and a second wedge-shaped extrusion block 11 adapted to the first wedge-shaped extrusion block 10 is fixedly connected to the side of the blister base 3; wherein, when the pressing plate 5 moves downward, the first wedge-shaped extrusion block 10 first contacts the second wedge-shaped extrusion block 11, and then the lower surface of the pressing plate 5 contacts and seals with the upper surface of the blister base 3.

[0033] After the blister packing is finished, the blister packing is put into the airtight container 3. When the blister packing is finished, the blister packing is put into the airtight container 3. After the blister packing is finished, the blister packing is put into the airtight container 3. When the blister packing is finished, the blister packing is put into the airtight container 3.

[0034] Among them, the telescopic device 4 mentioned above can be purchased on the market, including but not limited to an electric telescopic rod or a hydraulic telescopic rod, and the negative pressure fan 7 is also an existing known technology, which can suck out the air in the cavity 6. It is a mature technology and has been fully disclosed, so it will not be repeated in the specification.

[0035] As a technical optimization solution of the utility model, a plurality of fixed blocks 13 are provided on the side of the pressure plate 5, and a movable column 12 penetrating the fixed block 13 is fixedly connected to the upper surface of the first wedge-shaped extrusion block 10, and a spring 14 sleeved on the side of the movable column 12 is fixedly connected between the lower surface of the fixed block 13 and the upper surface of the first wedge-shaped extrusion block 10.

[0036] When the first wedge-shaped extrusion block 10 moves down and comes into contact with the second wedge-shaped extrusion block 11, due to the tension of the spring 14, the pressure block 5 continues to move down, thereby improving the tightness between the first wedge-shaped extrusion block 10 and the second wedge-shaped extrusion block 11. At the same time, the moving column 12 moves on the fixed block 13. The cross-section of the moving column 12 is rectangular, which limits the first wedge-shaped extrusion block 10.

[0037] As a technical optimization solution of the utility model, a moving block 15 is fixedly connected to one side of the fixed block 13, and a moving groove 16 adapted to the moving block 15 is opened on the side of the pressure plate 5. An adjusting rod 17 passes through and is rotatably connected to the upper surface of the pressure plate 5. The adjusting rod 17 passes through and is connected to the moving block 15. The lower end of the adjusting rod 17 is rotatably connected to the bottom of the moving groove 16, and the side of the adjusting rod 17 is threadedly connected to a limiting ring 18.

[0038] The position of the first wedge-shaped extrusion block 10 can be adjusted by rotating the adjusting rod 17 to ensure that the pressing force between the first wedge-shaped extrusion block 10 and the second wedge-shaped extrusion block 11 will not damage the thermoplastic plate. During adjustment, the limiting ring 18 is loosened and the adjusting rod 17 is rotated. When the adjusting rod 17 rotates, the moving block 15 is driven to move in the moving groove 16, thereby adjusting the position of the fixed block 13. After adjusting the position of the first wedge-shaped extrusion block 10, the limiting ring 18 is tightened to fix the position of the fixed block 13.

[0039] As a technical optimization scheme of the utility model, a sealing gasket 19 in the shape of a U-shaped seal is provided on the lower surface of the pressing plate 5, and a snap-in groove 20 adapted to the sealing gasket 19 is opened on the upper end of the blister base 3. When the pressing plate 5 moves down until its lower surface contacts the upper surface of the blister base 3, the sealing gasket 19 is snap-fitted into the snap-in groove 20, thereby improving the sealing between the pressing plate 5 and the blister base 3 after the mold is closed.

[0040] As a technical optimization solution of the utility model, a displacement plate 21 is slidably connected to the blister frame 2, and the symmetrical side walls inside the blister frame 2 are provided with displacement grooves 22 adapted to the two sides of the displacement plate 21. The blister base 3 is fixedly installed on the upper surface of the displacement plate 21. The blister base 3 can be partially pulled out of the blister frame 2 through the displacement plate 21, and the thermoplastic plate can be placed or taken out to complete the blister workpiece, which is convenient for the operator to operate.

[0041] As a technical optimization solution of the utility model, a symmetrical first magnetic block 23 is embedded on one side of the blister frame 2, and a second magnetic block 24 adapted to the first magnetic block 23 is embedded on one side of the displacement plate 21. When the displacement plate 21 is pushed into the blister frame 2, the first magnetic block 23 and the second magnetic block 24 are adsorbed, and the displacement plate 21 is placed and moved in the blister frame 2.

[0042] As a technical optimization scheme of the utility model, a plurality of clamping blocks 25 adapted to the blister base 3 are provided on the upper surface of the displacement plate 21, and a mounting block 26 is fixedly connected to the side of the clamping block 25. A fastening bolt 27 with one end threadedly connected to the upper surface of the displacement plate 21 passes through the mounting block 26, and a plurality of mounting holes 28 adapted to the fastening bolt 27 are opened on the displacement plate 21. The mounting block 26, the fastening bolt 27 and the mounting hole 28 can be used to replace and fix the position of adsorption bases 3 of different sizes. When replacing the blister base 3, it is necessary to replace the pressure plate 5 that is also detachably fixed, so as to improve the applicability of the overall device.

[0043] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A high-sealing plastic forming mechanism, comprising an operating table (1), characterized in that: The operating table (1) is provided with a blister frame (2), and a blister base (3) located on the upper surface of the operating table (1) is provided in the blister frame (2). A telescopic device (4) is fixedly installed on the upper surface of the blister frame (2). The telescopic lower end of the telescopic device (4) penetrates the blister frame (2) and is fixedly installed with a pressure plate (5) adapted to the blister base (3). A cavity (6) is provided in the blister base (3). A negative pressure fan (7) is provided on the upper surface of the operating table (1). A hose (8) connected to the negative pressure fan (7) and the cavity (6) is provided. A plurality of air suction holes (9) are opened through the top of the cavity (6). A first wedge-shaped extrusion block (10) is provided on the side of the pressure plate (5), and a second wedge-shaped extrusion block (11) adapted to the first wedge-shaped extrusion block (10) is fixedly connected to the side of the blister base (3); When the pressing plate (5) moves downward, the first wedge-shaped extrusion block (10) first contacts the second wedge-shaped extrusion block (11), and then the lower surface of the pressing plate (5) contacts and seals with the upper surface of the blister base (3).

2. A high-sealing blister forming mechanism according to claim 1, characterized in that: A plurality of fixed blocks (13) are provided on the side of the pressure plate (5); a movable column (12) penetrating the fixed block (13) is fixedly connected to the upper surface of the first wedge-shaped extrusion block (10); and a spring (14) sleeved on the side of the movable column (12) is fixedly connected between the lower surface of the fixed block (13) and the upper surface of the first wedge-shaped extrusion block (10).

3. A high-sealing blister forming mechanism according to claim 2, characterized in that: A movable block (15) is fixedly connected to one side of the fixed block (13); a movable groove (16) adapted to the movable block (15) is provided on the side of the pressure plate (5); an adjusting rod (17) passes through and is rotatably connected to the upper surface of the pressure plate (5); the adjusting rod (17) passes through and is connected to the movable block (15); the lower end of the adjusting rod (17) is rotatably connected to the bottom of the movable groove (16); and a limit ring (18) is threadedly connected to the side of the adjusting rod (17).

4. A high-sealing blister forming mechanism according to claim 1, characterized in that: A sealing gasket (19) in the shape of a square is provided on the lower surface of the pressing plate (5), and a clamping groove (20) adapted to the sealing gasket (19) is provided on the upper end of the blister base (3).

5. A high-sealing blister forming mechanism according to claim 1, characterized in that: A displacement plate (21) is slidably connected inside the blister frame (2), and displacement grooves (22) adapted to the two sides of the displacement plate (21) are provided on the symmetrical side walls inside the blister frame (2), and the blister base (3) is fixedly mounted on the upper surface of the displacement plate (21).

6. A high-sealing blister forming mechanism according to claim 5, characterized in that: A symmetrical first magnetic block (23) is embedded on one side of the blister frame (2), and a second magnetic block (24) adapted to the first magnetic block (23) is embedded on one side of the displacement plate (21).

7. A high-sealing blister forming mechanism according to claim 5, characterized in that: The upper surface of the displacement plate (21) is provided with a plurality of clamping blocks (25) adapted to the blister base (3); a mounting block (26) is fixedly connected to the side of the clamping block (25); a fastening bolt (27) having one end threadedly connected to the upper surface of the displacement plate (21) passes through the mounting block (26); and the displacement plate (21) is provided with a plurality of mounting holes (28) adapted to the fastening bolt (27).

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