Blow molding mold for sports kettle

Abstract

The utility model provides a blow molding mold for a sports kettle, and belongs to the field of blow molding. The blow molding machine comprises a rack, an upper mold and a lower mold are arranged on the rack, a mold cavity is formed between the upper mold and the lower mold during mold closing, a blow molding device is connected between the upper mold and the lower mold, the blow molding device is fixed on the rack, an outlet of the blow molding device is communicated with the mold cavity, the upper mold is fixed on the rack, and the lower mold is fixed on the rack. The lower mold can slide in the vertical direction along the rack, feeding and blowing of the blow molding device are integrated, and the situation that the mold is closed after materials are put in is not needed; after the mold is closed, materials are extruded in through the blow molding device, high-pressure gas is blown in through the blow molding device for blow molding, and after molding, the lower mold moves downwards along the rack, so that a plastic part is driven to move downwards and is taken out.

Description

Technical Field

[0001] This utility model belongs to the field of blow molding, and in particular relates to a blow molding mold for sports water bottles. Background Technology

[0002] Blow molding is a rapidly developing plastic processing method. A tubular plastic preform, obtained by extrusion or injection molding of thermoplastic resin, is placed in a split mold while still hot. Immediately after the mold is closed, compressed air is introduced into the preform, causing it to inflate and adhere tightly to the inner wall of the mold. After cooling and demolding, various hollow products are obtained. Currently, in existing blow molding technology, the preform is first placed into the mold cavity; then the mold is closed, clamping both ends of the mold and the preform; subsequently, an air needle, driven by a cylinder, pierces into the preform to perform blow molding until the outer preform is formed; then other mechanisms perform subsequent actions until the product is fully formed.

[0003] For example, a Chinese utility model patent discloses a blow molding mold for a porous bottle [application number CN.], in which the blow-molded bottle is a porous bottle with distributed pores. The porous bottle is used for filling fishing bait and other materials that can be leaked out. A hole cutter is installed on the cavity wall of the blow molding mold, protruding from the cavity wall. The heated and softened bottle material is blown up in the cavity until the preform contacts the hole cutter. Under air pressure, the preform is cut with a hole of the same shape as the cutting edge. At this time, the air inlet and outlet channels behind the pusher are in an exhaust state, and the cut material is pushed into the rear cavity of the hole cutter along with the pusher. Because the outer surface of the hole cutter edge has a high smoothness and a taper, it seals well with the edge of the cut preform hole, allowing the preform to continue to be blown up, adhering tightly to the cavity wall, forming a porous bottle. Utility Model Content

[0004] The purpose of this invention is to address the above-mentioned problems by providing a blow molding mold for sports water bottles.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A blow molding die for a sports water bottle includes a frame with an upper die and a lower die on the frame. When the die is closed, a cavity is formed between the upper die and the lower die. A blow molding device is connected between the upper die and the lower die. The blow molding device is fixed on the frame and its outlet is connected to the cavity. The upper die is fixed on the frame, and the lower die can slide vertically along the frame.

[0007] In the above-mentioned blow molding mold for sports water bottles, a blow molding connection hole is formed between the upper mold and the lower mold. A threaded sleeve is provided on the outer surface of the blow molding device through a bearing. The blow molding connection hole is provided with a thread and can be screwed into the blow molding connection hole. A sealing gasket is provided on the inner wall of the blow molding connection hole near the mold cavity.

[0008] In the above-mentioned blow molding mold for sports water bottles, a groove ring is connected to the outer side of the blow molding connection hole away from the mold cavity, and a retaining ring is fixed on the outer surface of the threaded sleeve. The retaining ring can extend into the groove ring and abut against it.

[0009] In the aforementioned blow molding mold for sports water bottles, a locking structure is also provided between the upper mold and the lower mold.

[0010] In the above-mentioned blow molding mold for sports water bottles, the locking structure includes several rotating shafts rotatably mounted on the upper mold. The lower end of the rotating shaft extends out of the upper mold, and a locking rod is fixed on the rotating shaft. The lower mold is provided with a rotating hole corresponding to the rotating shaft, and the rotating hole is connected to a locking groove corresponding to the locking rod.

[0011] In the above-mentioned blow molding mold for sports water bottles, the frame is equipped with several rotating motors, and the output shaft of the rotating motor passes through the upper mold and is connected to the corresponding rotating shaft.

[0012] In the above-mentioned blow molding mold for sports water bottles, a lifting drive device is provided on each side of the frame. The lifting drive device is slidably connected to the frame and fixedly connected to both ends of the lower mold through a connecting rod.

[0013] In the above-mentioned blow molding mold for sports water bottles, a push rod is slidably provided in the lower mold, and the push rod has a sliding groove on both sides located in the lower mold. A sliding plate is slidably provided in the sliding groove. The sliding plate is fixedly connected to the push rod. A spring is provided between the sliding plate and the upper inner wall of the sliding groove. The spring is in a compressed state. The spring causes the sliding plate to abut against the lower inner wall of the sliding groove. The upper end face of the push rod is flush with the inner wall of the mold cavity.

[0014] In the above-mentioned blow molding mold for sports water bottles, a fixing rod is provided at the bottom of the frame, and the fixing rod can push the push rod.

[0015] In the above-mentioned blow molding mold for sports water bottles, several grooved rings are provided on the side wall of the mold cavity.

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] 1. The blow molding device integrates material feeding and air blowing, eliminating the need to put the material in before closing the mold. After the mold is closed, the material is extruded through the blow molding device and then blown with high-pressure gas. After molding, the lower mold moves downward along the frame, thus moving the plastic part downward and removing it.

[0018] 2. The connection between the blow molding connection hole and the screw sleeve ensures a stable and secure connection between the upper mold, lower mold and blow molding device. In addition, the sealing gasket increases the sealing performance at the blow molding connection hole to prevent molding failure caused by air leakage.

[0019] 3. The locking structure can lock the upper and lower molds, preventing the plastic part from failing to form due to the misalignment of the upper and lower molds under high pressure blow molding. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0021] Figure 2 This is an external schematic diagram of the upper and lower molds after they are joined together;

[0022] Figure 3 This is a schematic diagram of the upper mold structure;

[0023] Figure 4 This is a schematic diagram of the lower mold structure.

[0024] In the diagram: Frame 10, Upper mold 11, Lower mold 12, Mold cavity 13, Blow molding device 14, Blow molding connection hole 15, Screw sleeve 16, Sealing gasket 17, Groove ring 18, Abutment ring 19, Locking structure 20, Rotating shaft 21, Locking rod 22, Rotating hole 23, Locking groove 24, Rotating motor 25, Lifting drive device 26, Connecting rod 27, Push rod 28, Slide groove 29, Slide plate 30, Spring 31, Fixing rod 32, Groove ring 33. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0026] This utility model provides a blow molding mold for sports water bottles, combined with Figure 1-4 As shown, the system includes a frame 10, on which an upper mold 11 and a lower mold 12 are provided. When the mold is closed, a mold cavity 13 is formed between the upper mold 11 and the lower mold 12. A blow molding device 14 is connected between the upper mold 11 and the lower mold 12. The blow molding device 14 is fixed on the frame 10, and the outlet of the blow molding device 14 is connected to the mold cavity 13. The upper mold 11 is fixed on the frame 10, and the lower mold 12 can slide vertically along the frame 10.

[0027] In this embodiment, the blow molding device 14 integrates material feeding and air blowing, eliminating the need to put the material in before closing the mold. After the mold is closed, the material is squeezed in through the blow molding device 14 and then blown in high-pressure gas through the blow molding device 14 for blow molding. After molding, the lower mold 12 moves downward along the frame 10, thereby moving the plastic part downward and taking it out.

[0028] A blow molding connection hole 15 is formed between the upper mold 11 and the lower mold 12. A threaded sleeve 16 is rotatably provided on the outer surface of the blow molding device 14 through a bearing. The blow molding connection hole 15 is provided with a thread and can be screwed into the blow molding connection hole 15. A sealing gasket 17 is provided on the inner wall of the blow molding connection hole 15 near the mold cavity 13.

[0029] In this embodiment, the connection between the upper mold 11, the lower mold 12 and the blow molding device 14 is stable and firm through the screw connection between the blow molding connection hole 15 and the screw sleeve 16. In addition, the sealing gasket 17 increases the sealing performance at the blow molding connection hole 15 and prevents molding failure caused by air leakage.

[0030] The blow molding connection hole 15 is connected to the outer side of the opening away from the mold cavity 13 by a groove ring 18, and the outer surface of the threaded sleeve 16 is fixed with a retaining ring 19, which can extend into the groove ring 18 and abut against it.

[0031] In this embodiment, when the blow molding device 14 is screwed into the blow molding connection hole 15, the abutment ring 19 can extend into the abutment groove ring 18, and the abutment groove ring 18 can abut against the abutment ring 19, thereby preventing the outlet of the blow molding device 14 from extending into the mold cavity 13.

[0032] A locking structure 20 is also provided between the upper mold 11 and the lower mold 12.

[0033] In this embodiment, the locking structure 20 can lock the upper mold 11 and the lower mold 12 to prevent the plastic part from failing to form due to the positional misalignment of the upper mold 11 and the lower mold 12 under high pressure blow molding.

[0034] The locking structure 20 includes a plurality of rotating shafts 21 rotatably mounted on the upper mold 11. The lower end of the rotating shaft 21 extends out of the upper mold 11. A locking rod 22 is fixed on the rotating shaft 21. The lower mold 12 is provided with a rotating hole 23 corresponding to the rotating shaft 21. The rotating hole 23 is connected to a locking groove 24 corresponding to the locking rod 22.

[0035] In this embodiment, when the mold is closed, the rotating shaft 12 extends into the rotating hole 23, and then the rotating shaft 12 is rotated, so that the locking rod 22 extends into the locking groove 24. Under high pressure, the locking rod 22 will be locked on the inner wall of the locking groove 24 to prevent the upper mold 11 and the lower mold 12 from being displaced.

[0036] The frame 10 is provided with a plurality of rotating motors 25, the output shaft of the rotating motor 25 passing through the upper mold 11 and connected to the corresponding rotating shaft 21.

[0037] In this embodiment, the rotating motor 25 controls the rotation of the rotating shaft 21.

[0038] The frame 10 is provided with a lifting drive device 26 on each side. The lifting drive device 26 is slidably connected to the frame 10 and fixedly connected to both ends of the lower mold 12 through a connecting rod 27.

[0039] In this embodiment, the upper mold 11 is fixed, while the lower mold 12 moves under the operation of the lifting drive device 26 to complete the mold closing and opening operations.

[0040] A push rod 28 is slidably provided inside the lower mold 12. The push rod 28 has a sliding groove 29 on both sides located inside the lower mold 12. A sliding plate 30 is slidably provided inside the sliding groove 29. The sliding plate 30 is fixedly connected to the push rod 28. A spring 31 is provided between the sliding plate 30 and the upper inner wall of the sliding groove 29. The spring 31 is in a compressed state. The spring 31 causes the sliding plate 30 to abut against the lower inner wall of the sliding groove 29. The upper end face of the push rod 28 is flush with the inner wall of the mold cavity 13.

[0041] In this embodiment, after mold separation, the lower mold 12 moves downward with the plastic part, and the ejector rod 28 is used to eject the plastic part at the end. Under high pressure molding, the slide plate 30 will abut against the inner wall of the slide groove 29, thereby preventing the ejector rod 28 from moving downward under high pressure. After demolding, the spring 31 can quickly make the ejector rod 28 return to its original position.

[0042] The bottom of the frame 10 is provided with a fixing rod 32, which can push the top rod 28.

[0043] In this embodiment, during the downward movement of the lower mold 21, the fixing rod 32 can push the ejector rod 28, thereby ejecting the plastic part.

[0044] The mold cavity 13 has several grooved rings 33 on its side wall.

[0045] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0046] Although this article frequently uses terms such as frame 10, upper mold 11, lower mold 12, mold cavity 13, blow molding device 14, blow molding connecting hole 15, threaded sleeve 16, sealing gasket 17, grooved ring 18, retaining ring 19, locking structure 20, rotating shaft 21, locking rod 22, rotating hole 23, locking groove 24, rotating motor 25, lifting drive device 26, connecting rod 27, top rod 28, sliding groove 29, sliding plate 30, spring 31, fixing rod 32, grooved ring 33, etc., these terms are used merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any kind of additional limitation would be contrary to the spirit of this utility model.

Claims

1. A blow molding mold for a sports water bottle, comprising a frame (10) having an upper mold (11) and a lower mold (12) provided thereon, characterized in that, When the mold is closed, the upper die (11) and the lower die (12) form a mold cavity (13) therebetween, a blow molding device (14) is connected between the upper die (11) and the lower die (12), the blow molding device (14) is fixed on the rack (10), the outlet of the blow molding device (14) communicates with the mold cavity (13), the upper die (11) is fixed on the rack (10), and the lower die (12) can slide in the vertical direction along the rack (10).

2. The sports kettle blow molding mold according to claim 1, characterized by, The blow molding connecting hole (15) is formed between the upper die (11) and the lower die (12), the outer surface of the blow molding device (14) is rotatably provided with a threaded sleeve (16) through a bearing, the blow molding connecting hole (15) is internally provided with threads and can be screwed with the blow molding connecting hole (15), and the inner wall of the blow molding connecting hole (15) near the mold cavity (13) is provided with a sealing gasket (17).

3. The sports kettle blow molding mold according to claim 2, characterized by, The blow molding connecting hole (15) is connected with a resisting groove ring (18) outside the orifice away from the mold cavity (13), the outer surface of the threaded sleeve (16) is fixed with a resisting ring piece (19), and the resisting ring piece (19) can extend into the resisting groove ring (18) and abut against the same.

4. The sports kettle blow molding mold according to claim 1, characterized by, The upper die (11) and the lower die (12) are further provided with a locking structure (20).

5. The sports-hydrating-bottle blow molding mold according to claim 4, characterized by, The locking structure (20) comprises a plurality of rotating shafts (21) rotatably arranged on the upper die (11), the lower ends of the rotating shafts (21) extend out of the upper die (11), clamping rods (22) are fixedly arranged on the rotating shafts (21), the lower die (12) is provided with rotating holes (23) corresponding to the rotating shafts (21), and the rotating holes (23) communicate with clamping grooves (24) corresponding to the clamping rods (22).

6. The sports-hydrating- flask blow mold of claim 5, wherein, A plurality of rotating motors (25) are arranged on the rack (10), the output shafts of the rotating motors (25) penetrate the upper die (11) and are connected with the corresponding rotating shafts (21).

7. The sports kettle blow molding mold according to claim 1, characterized by, Lifting driving devices (26) are arranged on the two sides of the rack (10), the lifting driving devices (26) are slidingly connected with the rack (10) and are fixedly connected with the two ends of the lower die (12) through connecting rods (27).

8. The sports-hydrating- flask blow mold of claim 7, wherein, A ejector rod (28) is slidingly arranged in the lower die (12), the two sides of the ejector rod (28) are provided with sliding grooves (29) in the lower die (12), sliding plates (30) are slidingly arranged in the sliding grooves (29), the sliding plates (30) are fixedly connected with the ejector rod (28), springs (31) are arranged between the sliding plates (30) and the upper inner walls of the sliding grooves (29), the springs (31) are in a compressed state, the springs (31) make the sliding plates (30) abut against the lower inner walls of the sliding grooves (29), and the upper end surface of the ejector rod (28) is flush with the inner wall of the mold cavity (13).

9. The sports-hydrating- flask blow mold of claim 8, wherein, The bottom of the rack (10) is provided with a fixing rod (32), and the fixing rod (32) can push the ejector rod (28).

10. The sports kettle blow molding mold according to claim 1, characterized by, A plurality of groove rings (33) are arranged on the side wall of the mold cavity (13).

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