Injection molding machine for plastic bottle processing

Abstract

The utility model relates to an injection molding machine for plastic bottle processing, one end of a material pipe is provided with a discharging assembly, the discharging assembly comprises a mounting seat, a discharging part, an adjusting part and a positioning part, the mounting seat is connected with the material pipe, the mounting seat is provided with a material channel, the adjusting part is sleeved on the discharging part, the discharging part is provided with a spherical body, and the positioning part is provided with a positioning hole. The spherical body abuts against a spherical inner cavity of the adjusting part, an opening part is arranged in the middle of the spherical body, a discharging channel of the discharging part is communicated with the material channel, the adjusting part is arranged in a containing cavity of the positioning part and movably arranged between the positioning part and the spherical body, the positioning part is connected with the installation base, and an outer protruding piece is arranged at the end of the adjusting part. The outer protruding part penetrates through the through hole of the positioning part and is provided with an abutting plane, a discharging hole is formed in the middle of the abutting plane and communicated with the opening part, and the diameter of the discharging hole is larger than that of the opening part. According to the utility model, the connection between the discharging assembly and the die can be kept when the die inclines, so that the risk of material leakage is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic bottle processing, in particular to an injection molding machine for plastic bottle processing. Background Art

[0002] Injection molding machines are the primary molding equipment used to convert thermoplastics or thermosetting plastics into various shapes using plastic molding molds. During the plastic bottle manufacturing process, a certain amount of plastic is heated and plasticized. The molten plastic is then injected into the mold cavity by a screw at a specific pressure and speed to form the product. For example, patent publication number CN115923042A discloses a plastic bottle injection molding machine. Plastic pellets are heated and melted by a heater. These pellets are then continuously transported by a drive plate until they are squeezed out of the inner cavity of a feed tube and then extruded into a mold for injection molding. However, if the mold placement or dimensions are incorrect, causing the mold to tilt relative to the feed tube, this can easily lead to material leakage as it enters the mold. Utility Model Content

[0003] In order to solve the problems of the prior art, the utility model provides an injection molding machine for processing plastic bottles, which can also dock when the mold is tilted, thereby reducing the risk of leakage.

[0004] The specific technical solution is as follows: An injection molding machine for processing plastic bottles includes a material pipe, a feed barrel is provided on the material pipe, a screw is provided in the material pipe, and a discharge assembly is provided at one end of the material pipe, the discharge assembly includes a mounting seat, a discharge part, an adjusting part and a positioning part, the mounting seat is connected to the material pipe, the mounting seat has a material channel, the adjusting part is sleeved on the discharge part, the discharge part has a spherical body, the spherical body abuts against the spherical inner cavity of the adjusting part, an opening is provided in the middle of the spherical body, the discharge channel of the discharge part is connected with the material channel, the adjusting part is arranged in the accommodating cavity of the positioning part, the adjusting part is movably arranged between the positioning part and the spherical body, the positioning part is connected to the mounting seat, an outer protrusion is provided at the end of the adjusting part, the outer protrusion passes through the through hole of the positioning part, the outer protrusion has a resting plane, a discharge hole is provided in the middle of the resting plane, the discharge hole is connected with the opening, and the diameter of the discharge hole is larger than the diameter of the opening.

[0005] In some embodiments, a discharge block is provided at the end of the material pipe, a feed port is provided in the discharge block, the feed port is connected to the material pipe, and the feed port is connected to the discharge assembly through a discharge channel.

[0006] In some embodiments, the discharge portion and the regulating portion are coaxially arranged.

[0007] In some embodiments, the mounting seat is provided with a positioning screw hole, the positioning portion is provided with a matching hole, and the locking member passes through the matching hole and is locked with the screw hole.

[0008] In some embodiments, the screw includes a rod body and an end head assembly, the end head assembly is arranged at one end of the rod body, the end head assembly includes a guide ring, an annular part and an end head, the guide ring and the annular part are sleeved on the rod body, the annular part rests against the guide ring, the end head is connected to the rod body and rests against the annular part, and the guide ring is provided with several guide channels.

[0009] In some embodiments, an inlet is provided at the end of the guide ring, the inlet is connected to the guide channel, and a guide surface is provided around the inlet.

[0010] In some embodiments, a discharge port is provided on the side of the guide ring, and the discharge port is connected to the guide channel.

[0011] In some embodiments, both end surfaces of the annular member are provided with inclined surfaces, which abut against the guide ring.

[0012] In some embodiments, the end piece has an internal thread, the end of the rod body is provided with an external thread, and the end piece is threadedly connected to the rod body.

[0013] In some embodiments, the tip is tapered.

[0014] Technical effect of the utility model: The injection molding machine for processing plastic bottles of the utility model can maintain the connection between the discharge component and the mold when the mold is tilted, reducing the risk of material leakage. In addition, it can reduce the maintenance cost of the screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of an injection molding machine for processing plastic bottles according to an embodiment of the present utility model.

[0016] Figure 2 It is an exploded view of the discharge assembly of the embodiment of the present utility model.

[0017] Figure 3 This is a schematic diagram of the discharge assembly of an embodiment of the present utility model docking with the mold.

[0018] Figure 4 Schematic diagram of the screw rod according to the embodiment of the present invention.

[0019] Figure 5 It is an exploded view of the end head assembly of an embodiment of the present utility model. DETAILED DESCRIPTION

[0020] The essential features and advantages of the present invention are further described below with reference to examples, but the present invention is not limited to the examples listed.

[0021] like Figures 1 to 5As shown, an injection molding machine for processing plastic bottles in this embodiment includes a material pipe 1, which is provided with a feed barrel 2. Material enters the material pipe through the feed barrel 2. A screw is provided in the material pipe 1 to move the material. A discharge assembly 3 is provided at one end of the material pipe 1, and the material is transported to the mold 10 through the discharge assembly 3. The discharge assembly 3 includes a mounting seat 31, a discharge portion 32, an adjustment portion 33, and a positioning portion 34. The mounting seat 31 is connected to the material pipe 1 and has a material channel 311. The adjustment portion 33 is sleeved on the discharge portion 32. The discharge portion 32 has a spherical body 321. The spherical body 321 abuts against the spherical inner cavity 331 of the adjustment portion 33, thereby allowing the adjustment portion 33 to move relative to the spherical body 321. An opening 322 is provided in the middle of the spherical body 321. The discharge channel 323 of the discharge portion 32 communicates with the material channel 311. The adjustment portion 33 is disposed in the accommodating cavity 341 of the positioning portion 34. The adjustment portion 33 is movably disposed between the positioning portion 34 and the spherical body 321. The positioning portion 34 is connected to the mounting seat 31. A protruding member 332 is provided at the end of the adjustment portion 33. The protruding member 332 passes through the through hole 342 of the positioning portion 34. The protruding member 332 has an abutting surface 333. A discharge hole 334 is provided in the middle of the abutting surface 333. The discharge hole 334 communicates with the opening 322 and has a diameter greater than that of the opening 322. In the above technical solution, when the mold 10 deviates from its position and tilts relative to the material tube 1, the abutment plane 333 abuts the mold, and the adjustment portion 33 can rotate relative to the discharge portion 32, so that the abutment plane 333 can maintain contact with the mold. At the same time, the discharge hole 334 can maintain communication with the opening 322, allowing material to be discharged through the discharge hole 334. Through the above technical solution, the connection between the discharge assembly and the mold can be maintained even when the mold is tilted, thereby achieving material conveyance.

[0022] In this embodiment, the end of the material pipe 1 is provided with a discharge block 4, and the discharge block 4 is provided with a feed port 41. The feed port 41 is connected to the material pipe 1, and the feed port 41 is connected to the discharge assembly 3 through a discharge channel 42. By providing the discharge block 4, the discharge position of the discharge assembly 3 can be changed. The discharge portion 32 and the adjustment portion 33 are coaxially arranged, that is, when the adjustment portion 33 is not adjusted, the adjustment portion 33 and the discharge portion 32 can remain coaxial, so that the adjustment portion 33 has a certain adjustment range in different directions. The mounting seat 31 is provided with a positioning screw hole 312, and the positioning portion 34 is provided with a matching hole 343. The locking member 5 passes through the matching hole 343 and is locked with the screw hole 312, thereby facilitating the locking or release of the positioning portion 34 and the mounting seat 31. The locking member 5 is a bolt.

[0023] In this embodiment, the screw includes a rod body 6 and an end assembly 7. The end assembly 7 is disposed at one end of the rod body 6 and includes a guide ring 71, an annular member 72, and an end member 73. The guide ring 71 and the annular member 72 are sleeved on the rod body 6, the annular member 72 abuts the guide ring 71, and the end member 73 is connected to the rod body 6 and abuts the annular member 72. The guide ring 71 is provided with a plurality of guide channels 711. The material enters the guide ring 71 through the material pipe, flows out of the guide ring 71 after passing through the guide channels 711, and enters the feed port 41 through the annular member 72. The above technical solution enables the end assembly 7 to be configured with multiple separate components. If the annular member 72 is damaged after a certain period of use, it can be replaced separately without replacing the entire screw. The guide ring 71 has an inlet 712 at its end, which communicates with the guide channel 711. Guide surfaces 713 surround the inlet 712, allowing material to enter the guide channel 711 within the ring 72 through the inlet 712. A discharge port 714 is provided on the side of the guide ring 711, communicating with the guide channel 711. Material within the guide channel 711 is discharged through the side discharge port 714. Both end surfaces of the ring 72 have inclined surfaces 721, which abut against the guide ring 71. The presence of these inclined surfaces allows the ring 72 to be reversed and continued in use if one end is damaged. The end piece 73 has internal threads 731, and the end of the rod 6 has external threads 61. The end piece 73 is threadedly connected to the rod 6, facilitating assembly and disassembly of the end piece 73 and the rod 6. The tapered shape of the end piece 73 facilitates material guidance.

[0024] The injection molding machine for processing plastic bottles of this embodiment can maintain the connection between the discharge assembly and the mold when the mold is tilted, thereby reducing the risk of material leakage. In addition, it can reduce the maintenance cost of the screw.

[0025] It should be noted that the above preferred embodiments are merely illustrative of the technical concepts and features of the present invention. Their purpose is to enable those familiar with the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications based on the spirit of the present invention are intended to fall within the scope of protection of the present invention.

Claims

1. An injection molding machine for processing plastic bottles, comprising a material pipe, a feed barrel provided on the material pipe, a screw provided inside the material pipe, and a discharge assembly provided at one end of the material pipe, characterized in that: The discharging assembly includes a mounting seat, a discharging part, an adjusting part and a positioning part. The mounting seat is connected to the material pipe, the mounting seat has a material channel, the adjusting part is sleeved on the discharging part, the discharging part has a spherical body, the spherical body abuts against the spherical inner cavity of the adjusting part, the middle part of the spherical body is provided with an opening, the discharging channel of the discharging part is connected with the material channel, the adjusting part is arranged in the accommodating cavity of the positioning part, the adjusting part is movably arranged between the positioning part and the spherical body, the positioning part is connected to the mounting seat, the end of the adjusting part is provided with an outer protrusion, the outer protrusion passes through the through hole of the positioning part, the outer protrusion has an abutting plane, the middle part of the abutting plane is provided with a discharging hole, the discharging hole is connected with the opening, and the diameter of the discharging hole is larger than the diameter of the opening.

2. The plastic bottle processing injection molding machine according to claim 1, characterized in that: The end of the material pipe is provided with a discharge block, the discharge block is provided with a feeding port, the feeding port is communicated with the material pipe, and the feeding port is communicated with the discharge assembly through a discharge channel.

3. The injection molding machine for processing plastic bottles according to claim 1, characterized in that: The discharging portion and the adjusting portion are coaxially arranged.

4. The injection molding machine for processing plastic bottles according to claim 1, characterized in that The mounting seat is provided with a positioning screw hole, the positioning portion is provided with a matching hole, and the locking piece passes through the matching hole and is locked with the screw hole.

5. The injection molding machine for processing plastic bottles according to any one of claims 1 to 4, characterized in that: The screw includes a rod body and an end head assembly, the end head assembly is arranged at one end of the rod body, the end head assembly includes a guide ring, an annular part and an end head, the guide ring and the annular part are sleeved on the rod body, the annular part abuts against the guide ring, the end head is connected to the rod body and abuts against the annular part, and the guide ring is provided with a plurality of guide channels.

6. The plastic bottle processing injection molding machine according to claim 5, characterized in that: An inlet is provided at the end of the guide ring, the inlet is communicated with the guide channel, and guide surfaces are provided around the inlet.

7. The plastic bottle processing injection molding machine according to claim 6, characterized in that: A discharge port is provided on the side of the guide ring, and the discharge port is communicated with the guide channel.

8. The injection molding machine for processing plastic bottles according to claim 7, characterized in that: Both end surfaces of the annular member are provided with inclined surfaces, which abut against the guide ring.

9. The plastic bottle processing injection molding machine according to claim 8, characterized in that: The end piece has an internal thread, the end of the rod body is provided with an external thread, and the end piece is threadedly connected to the rod body.

10. The injection molding machine for processing plastic bottles according to claim 9, characterized in that: The end piece is tapered.

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