Plastic blowing and sucking mold convenient to demold and using method thereof

Abstract

The invention discloses a plastic blowing and sucking mold convenient to demold and a using method thereof, and relates to the technical field of plastic blowing and sucking molds, the plastic blowing and sucking mold comprises a vacuum negative pressure plastic sucking machine, a mold body, a machined part, a first electric sliding rail, a heating machine, a demolding air cylinder, a vibration ejection block, a sealing mechanism, a positioning mechanism and a demolding mechanism; the mold body is fixedly connected to the top end of the vacuum negative pressure plastic suction machine; the machined part is arranged at the top end of the die body; the first electric sliding rail is fixedly connected to the top end of the vacuum negative pressure plastic suction machine. The vibration ejector block capable of applying vibration to the machined part is arranged in the mold body, the vacuum adsorption state between products such as a thick plastic uptake part and an anti-skid tray and the mold body can be rapidly broken through the vibration effect, meanwhile, the attaching friction force between the machined part and the surface of the mold body is damaged, and the machined part and the inner wall of the mold body are rapidly separated; and the problems of mold sticking, surface scratching, structural deformation and the like easily occurring in a traditional demolding mode are effectively solved, and the production quality of products is remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of blow molding and vacuum molding technology, specifically to a blow molding and vacuum molding mold that facilitates demolding and its usage method. Background Technology

[0002] Blow molding and vacuum forming molds are key tooling widely used in the plastic molding and processing field. They are mainly divided into two categories: blow molding molds and vacuum forming molds. Blow molding molds are mostly used to form hollow plastic products such as bottles and barrels, while vacuum forming molds are mainly used to produce thin-walled or thick-sheet plastic parts such as trays, shells, and packaging liners. When used in conjunction with corresponding molding equipment, both can achieve mass production of plastic products and play an irreplaceable role in industries such as logistics, packaging, chemicals, and automobiles.

[0003] The basic working methods of existing blow molding and vacuum forming molds have clear industry conventions: When blow molding is working, the equipment first extrudes molten plastic preforms. After the mold closes, it clamps the two ends of the preforms. Compressed air is introduced to inflate the preforms and make them fit into the inner cavity of the mold. After cooling and solidification, the mold is opened to complete the product forming. Vacuum forming molds, on the other hand, use a heating device to soften the plastic sheet. With the help of vacuum adsorption or positive pressure, the softened sheet is tightly attached to the surface of the mold to form a preset shape. After the sheet cools and solidifies, the vacuum or pressure is released to complete one forming cycle.

[0004] In actual production, existing blow molding molds generally suffer from the technical defect of inconvenient demolding, especially for special structural products such as thick sheet vacuum forming parts, anti-slip trays, and deep cavity hollow parts. This problem is more prominent: the contact area between the thick sheet vacuum forming parts and the mold is large, and it is easy to form a vacuum adsorption after cooling. The anti-slip texture on the surface of the anti-slip tray will further increase the frictional resistance between the product and the mold. However, existing molds mostly rely on a single air blowing demolding or a simple push structure, which is difficult to effectively break the adsorption force and friction force. This often results in products sticking to the mold, surface scratches or structural deformation during demolding. This not only seriously affects the product quality, but also requires manual demolding assistance, which greatly reduces production efficiency and increases labor costs and product scrap rate. Summary of the Invention

[0005] The purpose of this invention is to provide a blow molding mold that facilitates demolding and its usage method. In order to solve the problems of inconvenience in demolding thick sheet vacuum forming parts, anti-slip trays and other products, easy sticking, deformation and low efficiency of existing molds, this application designs a cylinder structure in the mold that can vibrate the processed parts, so as to achieve the technical effects of rapid demolding, avoiding defects and improving production quality and efficiency.

[0006] The technical problem to be solved by this invention can be achieved through the following technical solution: A blow molding / vacuum forming mold for easy demolding and its usage method include a vacuum vacuum forming machine, a mold body, a workpiece, a first electric slide rail, a heating machine, a demolding cylinder, a vibrating top block, a sealing mechanism, a positioning mechanism, and a demolding mechanism. The mold body is fixed to the top of the vacuum vacuum forming machine. The workpiece is located at the top of the mold body. The first electric slide rail is fixed to the top of the vacuum vacuum forming machine and is located on the left and right sides of the mold body. The heating machine is slidably connected to the inner wall of the first electric slide rail and is located above the workpiece. The demolding cylinder is fixed inside the mold body. The vibrating top block is fixed to the top of the demolding cylinder and is located below the workpiece. The sealing mechanism is located inside the mold body. The positioning mechanism is located at the top of the vacuum vacuum forming machine. The demolding mechanism is located at the top of the mold body.

[0007] Preferably, the sealing mechanism includes an air pump and an inflatable rubber ring; the air pump is fixed inside the mold body; the inflatable rubber ring is located inside the mold body, and the right side of the inflatable rubber ring is connected to the air pump; the inflatable rubber ring is located above the demolding cylinder.

[0008] Preferably, the demolding mechanism includes an electric guide rail, a telescopic cylinder, an electric clamp, and a groove; the electric guide rail is fixedly connected to the top of the mold body; the telescopic cylinder is slidably connected to the left side of the electric guide rail; the electric clamp is fixedly connected to the left side of the telescopic cylinder; the groove is formed inside the mold body and is located below the electric clamp.

[0009] Preferably, the positioning mechanism includes a first cylinder and a positioning plate; the first cylinder is fixed to the top of the vacuum negative pressure thermoforming machine; the positioning plate is fixed to the bottom of the first cylinder; and the positioning plate is positioned above the workpiece.

[0010] Preferably, a second electric slide rail is fixedly connected to the right side of the vacuum negative pressure thermoforming machine; a first conveyor belt is fixedly connected below the second electric slide rail on the right side of the vacuum negative pressure thermoforming machine; a second conveyor belt is fixedly connected to the right side of the first conveyor belt; a second cylinder is slidably connected to the bottom end of the second electric slide rail; a connecting plate is fixedly connected to the bottom end of the second cylinder; a third cylinder is fixedly connected to the left side of the connecting plate; a moving plate is fixedly connected to the left side of the third cylinder; an electric suction cup is provided inside the moving plate; and a suction cup head is fixedly connected to the bottom end of the electric suction cup.

[0011] Preferably, the movable plate has an adjustment groove inside; the adjustment groove is slidably connected to an electric suction cup; and a positioning magnet is fixed to the left side of the electric suction cup.

[0012] Preferably, the top of the vacuum negative pressure thermoforming machine is fixed with two sets of reinforcing plates; the reinforcing plates are provided with multiple sets of bolts; and the mold body is located between the two sets of reinforcing plates.

[0013] A blow molding / vacuum molding method for easy demolding includes the following steps: S1. After installation and calibration, apply anti-sticking agent and test the seal. Start the vacuum negative pressure thermoforming machine and preheat for 10 minutes. Set the parameters corresponding to HDPE, such as heating temperature of 200℃, vacuum degree of -0.5MPa, and cooling time of 20 seconds. Fix the sheet in the center of the quasi-mold and preheat it in sections until the surface is slightly drooping but not dripping. S2. After the sheet softens, the mold rises and fits at a speed of 60mm / s, simultaneously triggering the vacuum system to start multi-stage adsorption. The primary stage quickly evacuates air within 3 seconds to form the basic outline, the secondary stage maintains stable vacuum for 5 seconds to refine the anti-slip texture, and the subsequent 12 seconds of pressure holding compensates for material shrinkage. The surface temperature of the product is reduced to below 50℃ through air cooling or water mist cooling to ensure stable curing of the structure. S3. After cooling is complete, turn off the vacuum pump, introduce 0.5MPa compressed air to break the vacuum for 5 seconds, and then slowly eject the product through the demolding cylinder to avoid deformation and damage. The removed product is trimmed and chamfered by a pneumatic cutter. After passing the appearance, size and strength inspection, it is cooled to room temperature and stacked for packaging.

[0014] The beneficial effects of this invention are as follows: On the one hand, by adopting a multi-stage vacuum adsorption process, the initial rapid air extraction within 3 seconds can quickly soften the sheet material to form the basic outline of the product, ensuring basic molding efficiency; the second stage maintains a stable vacuum for 5 seconds, which can accurately refine the anti-slip texture of products such as anti-slip trays, avoiding molding defects such as blurred textures; the subsequent 12-second pressure holding compensation can effectively offset the dimensional deviation caused by material cooling and shrinkage, significantly improving the product molding accuracy and structural stability. On the other hand, by setting a vibration top block in the mold body that can apply vibration to the processed parts, the vibration action can quickly break the vacuum adsorption state between thick sheet vacuum forming parts, anti-slip trays, and other products and the mold body, while destroying the adhesion friction between the processed parts and the mold body surface, so that the processed parts can quickly separate from the inner wall of the mold body, effectively avoiding problems such as sticking, surface scratches, and structural deformation that are prone to occur in traditional demolding methods, further ensuring product production quality; and vibration demolding does not require manual intervention, greatly shortening the demolding time. Combined with the efficient and precise multi-stage vacuum forming process, the overall production efficiency is significantly improved, labor costs and product scrap rate are reduced, and it has strong adaptability and can be widely used in the molding and processing of various difficult-to-demold blow-formed and vacuum-formed products. Attached Figure Description

[0015] The invention will now be further described with reference to the accompanying drawings.

[0016] Figure 1 This is a process flow diagram of the present invention; Figure 2 This is a three-dimensional structural view of the vacuum negative pressure thermoforming machine in this invention; Figure 3 This is a three-dimensional view of the mold body structure in this invention; Figure 4 This is a schematic diagram of the positioning plate structure in this invention; Figure 5 This is a three-dimensional view of the movable plate structure in this invention; Figure 6 This is the present invention. Figure 4 Enlarged view of point A in the middle; Figure 7 This is the present invention. Figure 3 Enlarged view at point B in the middle; In the diagram: 1. Vacuum negative pressure thermoforming machine; 2. Mold body; 3. Processed part; 4. Electric slide rail No. 1; 5. Heating machine; 6. Demolding cylinder; 7. Vibrating top block; 8. Air pump; 9. Inflatable rubber ring; 10. Cylinder No. 1; 11. Positioning plate; 12. Reinforcing plate; 13. Electric guide rail; 14. Telescopic cylinder; 15. Electric clamp; 16. Groove; 17. Conveyor belt No. 1; 18. Conveyor belt No. 2; 19. Electric slide rail No. 2; 20. Cylinder No. 2; 21. Connecting plate; 22. Cylinder No. 3; 23. Moving plate; 24. Electric suction cup; 25. Suction cup head; 26. Adjusting slide; 27. Positioning magnet. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Example 1: As Figures 1-7 As shown, a blow molding mold for easy demolding and its usage method include a vacuum vacuum forming machine 1, a mold body 2, a processing part 3, a first electric slide rail 4, a heating machine 5, a demolding cylinder 6, a vibrating top block 7, a sealing mechanism, a positioning mechanism, and a demolding mechanism. The mold body 2 is fixed to the top of the vacuum vacuum forming machine 1. The processing part 3 is located at the top of the mold body 2. The first electric slide rail 4 is fixed to the top of the vacuum vacuum forming machine 1 and is located on the left and right sides of the mold body 2. The heating machine 5 is slidably connected to the inner wall of the first electric slide rail 4 and is located above the processing part 3. The demolding cylinder 6 is fixed to the inside of the mold body 2. The vibrating top block 7 is fixed to the top of the demolding cylinder 6 and is located below the processing part 3. The sealing mechanism is located inside the mold body 2. The positioning mechanism is located at the top of the vacuum vacuum forming machine 1. The demolding mechanism is located at the top of the mold body 2.

[0019] After placing the workpiece 3 on the mold body 2, the heating machine 5 is moved above the workpiece 3 by the first electric slide rail 4. The workpiece 3 is heated by the heating machine 5. Then, the heating machine 5 is moved back to its original position by the first electric slide rail 4. At this time, the workpiece 3 is vacuum-formed by the vacuum negative pressure forming machine 1. After the workpiece 3 completes the vacuum forming process, it is cooled by the cooling system of the vacuum negative pressure forming machine 1. Then, the demolding cylinder 6 repeatedly slides the vibrating top block 7 to vibrate and demold the workpiece 3, thus facilitating efficient demolding of the workpiece 3. The sealing mechanism includes an air pump 8 and an inflatable rubber ring 9; the air pump 8 is fixed inside the mold body 2; the inflatable rubber ring 9 is located inside the mold body 2, and the right side of the inflatable rubber ring 9 is connected to the air pump 8; the inflatable rubber ring 9 is located above the demolding cylinder 6.

[0020] To avoid air pressure issues during the vacuum forming process of part 3, the vacuum forming machine 1 uses an air pump 8 to inflate the inflatable rubber ring 9 before operation. The inflatable rubber ring 9 seals the top of the demolding cylinder 6 against the inner wall of the mold body 2. Then, the vacuum forming machine 1 performs the vacuum forming process on part 3. When part 3 needs to be demolded, the air pump 8 absorbs air from the inflatable rubber ring 9, causing it to shrink. At this point, the vibrating top block 7 can slide normally. The demolding mechanism includes an electric guide rail 13, a telescopic cylinder 14, an electric clamp 15, and a groove 16; the electric guide rail 13 is fixedly connected to the top of the mold body 2; the telescopic cylinder 14 is slidably connected to the left side of the electric guide rail 13; the electric clamp 15 is fixedly connected to the left side of the telescopic cylinder 14; the groove 16 is opened inside the mold body 2, and the groove 16 is located below the electric clamp 15.

[0021] After the workpiece 3 is processed, the electric clamp 15 is moved towards the workpiece 3 by the telescopic cylinder 14, so that the electric clamp 15 clamps and fixes one end of the workpiece 3. The groove 16 allows the bottom end of the electric clamp 15 to enter the interior of the mold body 2, and can clamp the bottom part of the workpiece 3. After the electric clamp 15 clamps the workpiece 3, it moves up and down repeatedly with the electric guide rail 13. With the help of the vibrating top block 7, it can quickly help the workpiece 3 get off the mold body 2. The positioning mechanism includes a first cylinder 10 and a positioning plate 11; the first cylinder 10 is fixed to the top of the vacuum negative pressure thermoforming machine 1; the positioning plate 11 is fixed to the bottom of the first cylinder 10; the positioning plate 11 is located above the workpiece 3.

[0022] After the workpiece 3 is placed on the mold body 2, the positioning plate 11 is moved toward the workpiece 3 by the first cylinder 10. The positioning plate 11 fixes the position of the outer side of the workpiece 3 to prevent the position of the workpiece 3 from shifting during the operation. The vacuum negative pressure thermoforming machine 1 has a second electric slide rail 19 fixedly connected to its right side; a first conveyor belt 17 is fixedly connected below the second electric slide rail 19 on the right side of the vacuum negative pressure thermoforming machine 1; a second conveyor belt 18 is fixedly connected to the right side of the first conveyor belt 17; a second cylinder 20 is slidably connected to the bottom end of the second electric slide rail 19; a connecting plate 21 is fixedly connected to the bottom end of the second cylinder 20; a third cylinder 22 is fixedly connected to the left side of the connecting plate 21; a moving plate 23 is fixedly connected to the left side of the third cylinder 22; an electric suction cup 24 is provided inside the moving plate 23; a suction cup head 25 is fixedly connected to the bottom end of the electric suction cup 24.

[0023] During operation, the workpiece 3 to be processed is transported to the right side of the vacuum negative pressure thermoforming machine 1 via the second conveyor belt 18. The second electric slide rail 19 moves the second cylinder 20 onto the second conveyor belt 18. The second cylinder 20 moves the connecting plate 21 and the moving plate 23 downward, thereby moving the suction head 25 onto the surface of the workpiece 3. The electric suction cup 24 causes the suction head 25 to adsorb and grasp the surface of the workpiece 3. At this time, the second cylinder 20 moves the moving plate 23 and the workpiece 3 upward, and moves them above the mold body 2 in conjunction with the second electric slide rail 19. Then, the suction head 25 releases the workpiece 3 from the adsorption. After the workpiece 3 is processed, it is adsorbed and grasped again by the suction head 25 and moved onto the first conveyor belt 17. The processed workpiece 3 is then transported by the first conveyor belt 17. The movable plate 23 has an adjustment groove 26 inside; the adjustment groove 26 is slidably connected to an electric suction cup 24; a positioning magnet 27 is fixedly connected to the left side of the electric suction cup 24.

[0024] Before starting work, the position of the suction head 25 can be adjusted according to the model of the workpiece 3. The operator can slide the position of the electric suction cup 24 on the adjustment slide 26 to adjust the position of the suction head 25, so that the suction head 25 can perform suction gripping of the workpiece 3 on the same plane. Different positions can be adjusted according to different models. The connecting plate 21 is equipped with two sets of No. 3 cylinders 22 and a moving plate 23. The length of each set of No. 3 cylinders 22 and the moving plate 23 can be adjusted according to the model of the workpiece 3. The top of the vacuum negative pressure thermoforming machine 1 is fixed with two sets of reinforcing plates 12; the reinforcing plates 12 are provided with multiple sets of bolts; the mold body 2 is located between the two sets of reinforcing plates 12.

[0025] Different mold bodies 2 can be installed according to different products. When it is necessary to replace the mold body 2, remove the bolts on the reinforcing plate 12 to release the fixation of the mold body 2, install the new mold body 2 between the two sets of reinforcing plates 12, and then fix it with multiple sets of bolts to facilitate the replacement of the mold body 2. Example 2: Based on Example 1, this example designs a blow molding / vacuum molding method that facilitates demolding, including the following steps: S1. After installation and calibration, apply anti-sticking agent and test the seal. Start the vacuum negative pressure thermoforming machine 1 and preheat for 10 minutes. Set the parameters corresponding to HDPE, such as heating temperature of 200℃, vacuum degree of -0.5MPa, and cooling time of 20 seconds. Fix the sheet in the center of the quasi-mold and preheat it in sections until the surface is slightly drooping but not dripping. S2. After the sheet softens, the mold rises and fits at a speed of 60mm / s, simultaneously triggering the vacuum system to start multi-stage adsorption. The primary stage quickly evacuates air within 3 seconds to form the basic outline, the secondary stage maintains stable vacuum for 5 seconds to refine the anti-slip texture, and the subsequent 12 seconds of pressure holding compensates for material shrinkage. The surface temperature of the product is reduced to below 50℃ through air cooling or water mist cooling to ensure stable curing of the structure. S3. After cooling is complete, turn off the vacuum pump and introduce 0.5MPa compressed air to break the vacuum for 5 seconds. Then, slowly eject the product through the demolding cylinder 6 to avoid deformation and damage. The removed product is trimmed and chamfered by a pneumatic cutter. After passing the appearance, size and strength inspection, it is cooled to room temperature and stacked for packaging.

[0026] The working principle of this invention is as follows: During operation, the workpiece 3 to be processed is conveyed to the right side of the vacuum negative pressure forming machine 1 via the second conveyor belt 18. The second electric slide rail 19 moves the second cylinder 20 onto the second conveyor belt 18. The second cylinder 20 moves the connecting plate 21 and the moving plate 23 downward, thereby moving the suction head 25 to the surface of the workpiece 3. The electric suction cup 24 causes the suction head 25 to adsorb and grasp the surface of the workpiece 3. At this time, the second cylinder 20 moves the moving plate 23 and the workpiece 3 upward, cooperating with the second electric slide rail 19 to move them above the mold body 2. Then, the suction head 25 releases the adsorption from the workpiece 3. After processing, part 3 is picked up by suction head 25 and moved to conveyor belt 17. The processed part 3 is then transported by conveyor belt 17. Before operation, the position of suction head 25 can be adjusted according to the model of part 3. The operator can slide the electric suction cup 24 on the adjusting groove 26 to adjust the position of suction head 25, facilitating suction head 25 to pick up part 3 on the same plane. Different positions are adjusted according to different models. Connecting plate 21 is equipped with two sets of cylinders 22 and moving plate 23. The length of each set of cylinders 22 and moving plate 23 can be adjusted according to the model of part 3. After part 3 is placed on mold body 2, the positioning plate 11 is moved towards part 3 by cylinder 10. The positioning plate 11 fixes the outer edge of part 3 to prevent displacement during operation. After part 3 is placed on mold body 2, the heating machine 5 is moved above part 3 by electric slide rail 4 to heat part 3. Then, the heating machine 5 is moved back to its original position by electric slide rail 4. At this time, vacuum forming machine 1 performs vacuum forming on part 3. After the vacuum forming process is completed, part 3 is cooled by the cooling system of vacuum forming machine 1. After cooling, the demolding cylinder 6 repeatedly slides the vibrating top block 7 to vibrate and demold the workpiece 3, thus facilitating efficient demolding of the workpiece 3. To avoid the air pressure of the vacuum negative pressure thermoforming machine 1 on the workpiece 3 during the thermoforming process, the air pump 8 inflates the inflatable rubber ring 9 before operation. The inflatable rubber ring 9 seals the top of the demolding cylinder 6 and the inner wall of the mold body 2. Then, the vacuum negative pressure thermoforming machine 1 performs the thermoforming process on the workpiece 3. When the workpiece 3 needs to be demolded, the air pump 8 absorbs gas from the inflatable rubber ring 9, shrinking the inflated shape of the inflatable rubber ring 9. At this time, the vibrating top block 7 can slide normally.After the workpiece 3 is processed, the electric clamp 15 is moved towards the workpiece 3 by the telescopic cylinder 14, so that the electric clamp 15 clamps and fixes one end of the workpiece 3. The groove 16 allows the bottom end of the electric clamp 15 to enter the interior of the mold body 2, which can clamp the bottom part of the workpiece 3. After clamping the workpiece 3, the electric clamp 15 moves up and down repeatedly in conjunction with the electric guide rail 13. With the help of the vibrating top block 7, the workpiece 3 can be quickly detached from the mold body 2.

[0027] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A blow-and-suck plastic mold facilitating demolding, characterized by, It includes vacuum negative pressure blister machine (1), mold body (2), processing piece (3), No. 1 electric sliding rail (4), heating machine (5), demolding cylinder (6), vibration top block (7), sealing mechanism, positioning mechanism and demolding mechanism. The mold body (2) is fixedly connected to the top end of the vacuum negative pressure blister machine (1); the processing piece (3) is arranged at the top end of the mold body (2). The No. 1 electric sliding rail (4) is fixedly connected to the top end of the vacuum negative pressure blister machine (1), and the No. 1 electric sliding rail (4) is arranged on the left and right sides of the mold body (2). The heating machine (5) is slidably connected to the inner side wall of the No. 1 electric sliding rail (4), and the heating machine (5) is arranged above the processing piece (3). The demolding cylinder (6) is fixedly connected to the inside of the mold body (2); the vibration top block (7) is fixedly connected to the top end of the demolding cylinder (6), and the vibration top block (7) is arranged below the processing piece (3). The sealing mechanism is arranged in the inside of the mold body (2); the positioning mechanism is arranged at the top end of the vacuum negative pressure blister machine (1); and the demolding mechanism is arranged at the top end of the mold body (2).

2. The blow-and-suck mold according to claim 1, wherein The sealing mechanism comprises an air pump (8) and an inflatable rubber ring (9). The air pump (8) is fixedly connected to the inside of the mold body (2); the inflatable rubber ring (9) is arranged in the inside of the mold body (2), and the right side of the inflatable rubber ring (9) is connected with the air pump (8); the inflatable rubber ring (9) is arranged above the demolding cylinder (6).

3. The blow-and-suck mold of claim 1, wherein The demolding mechanism comprises an electric guide rail (13), a telescopic cylinder (14), an electric clamp (15) and a groove (16). The electric guide rail (13) is fixedly connected to the top end of the mold body (2); the telescopic cylinder (14) is slidably connected to the left side of the electric guide rail (13); the electric clamp (15) is fixedly connected to the left side of the telescopic cylinder (14); and the groove (16) is arranged in the inside of the mold body (2), and the groove (16) is arranged below the electric clamp (15).

4. The blow-and-suck mold of claim 1, wherein The positioning mechanism comprises a No. 1 cylinder (10) and a positioning plate (11); the No. 1 cylinder (10) is fixedly connected to the top end of the vacuum negative pressure blister machine (1); the positioning plate (11) is fixedly connected to the bottom end of the No. 1 cylinder (10); and the positioning plate (11) is arranged above the processing piece (3).

5. The blow-and-suck mold of claim 1, wherein The right side of the vacuum negative pressure blister machine (1) is fixedly connected with a No. 2 electric sliding rail (19); the bottom of the right side of the No. 2 electric sliding rail (19) of the vacuum negative pressure blister machine (1) is fixedly connected with a No. 1 conveying belt (17); the right side of the No. 1 conveying belt (17) is fixedly connected with a No. 2 conveying belt (18); the bottom end of the No. 2 electric sliding rail (19) is slidably connected with a No. 2 cylinder (20); the bottom end of the No. 2 cylinder (20) is fixedly connected with a connecting plate (21); the left side of the connecting plate (21) is fixedly connected with a No. 3 cylinder (22); the left side of the No. 3 cylinder (22) is fixedly connected with a moving plate (23); the inside of the moving plate (23) is provided with an electric suction cup (24); and the bottom end of the electric suction cup (24) is fixedly connected with a suction cup head (25).

6. A blow-suction mold facilitating demolding according to claim 5, wherein The inside of the mobile plate (23) is provided with an adjusting sliding groove (26); the adjusting sliding groove (26) is slidably connected with an electric suction disc (24); the left side of the electric suction disc (24) is fixedly connected with a positioning magnet (27).

7. The blow-and-suck mold of claim 1, wherein The top of the vacuum negative pressure plastic suction machine (1) is fixedly connected with two groups of reinforcing plates (12); the reinforcing plates (12) are provided with a plurality of bolts; the mold body (2) is arranged between the two groups of reinforcing plates (12).

8. A method of blow-molding a parting facilitating blow-mold, adapted for use with the parting facilitating blow-mold of claim 1, wherein, The method comprises the following steps: S1, after installation and calibration, the anti-sticking agent is coated and the sealing is tested, the vacuum negative pressure plastic suction machine (1) is started to preheat for 10 minutes, the heating temperature corresponding to HDPE is set to 200 DEG C, the vacuum degree is set to -0.5 MPa, the cooling time is set to 20 seconds, and other parameters are set, the sheet is fixed in the center of the mold, and the sheet is preheated in sections to a state of slightly drooping surface but not dripping; S2, after the sheet is softened, the mold is raised at a speed of 60 mm / s to adhere, the vacuum system is started to start multi-stage adsorption, the primary stage is quickly pumped in 3 seconds to form a basic contour, the secondary stage is maintained for 5 seconds to refine the anti-skid texture under stable vacuum, and the subsequent 12 seconds are pressure maintaining and shrinkage compensation of the material; the product surface temperature is reduced to below 50 DEG C through air cooling or water mist cooling, so that the structure is solidified and stable; S3, after cooling, the vacuum pump is closed first, 0.5 MPa compressed air is introduced to break the vacuum for 5 seconds, then the product is slowly pushed out through the demolding air cylinder (6), so that deformation and damage are avoided, the removed product is trimmed and chamfered through the pneumatic cutter, and after appearance, size and strength inspection, the product is cooled to room temperature and stacked and packaged.

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