Plastic shell injection molding device

Abstract

The invention provides a plastic shell injection molding device, which relates to the field of water dispenser processing, and comprises: an on-off component, wherein the on-off component is composed of a control mechanism and an on-off mechanism, and the on-off component has the functions of controlling the on-off of an injection pipe and clearing residual materials in the injection pipe, and is stable in use. During the injection molding process, the on-off mechanism is turned on so that the material can be injected into the mold through the injection pipe. When the processing is completed, the on-off mechanism can close the injection pipe and also scrape the residual materials in the injection pipe into the material barrel, thereby keeping the inside of the injection pipe clean and tidy, effectively avoiding the phenomenon of residual materials solidifying and clogging in the injection pipe, and solving the problem that after the injection molding process is completed, some materials remain in the injection nozzle of the existing injection molding device and cannot be cleared in time, and the materials are more difficult to clear after solidification, and the injection nozzle is easily blocked, affecting the subsequent injection molding operation.

Description

Technical Field

[0001] The invention relates to the technical field of water dispenser processing, in particular to a plastic shell injection molding device. Background Art

[0002] A water dispenser is a device that heats or cools bottled pure water to facilitate people to drink. The shell of a water dispenser is mostly made by injection molding. At present, the processing of the shell of a water dispenser generally uses an injection machine to inject the raw materials into the mold through an injection nozzle to form the mold.

[0003] However, as far as the currently available injection molding device for the plastic shell of a water dispenser is concerned, its injection nozzle needs to extend into the interior of the mold, so the injection nozzle is generally relatively slender. This results in some material remaining in the injection nozzle after the injection molding process is completed and cannot be removed in time, and the material is even more difficult to remove after solidification. The injection nozzle is easily clogged, affecting subsequent injection molding operations, and has poor stability and low practicality. Summary of the invention

[0004] The disclosed embodiment relates to a plastic shell injection molding device, which has an on-off assembly. The on-off assembly has the function of controlling the on-off of an injection pipe and clearing residual materials inside the injection pipe. The device is stable to use. During the injection molding process, the on-off mechanism is turned on to allow the material to be injected into the mold through the injection pipe. When the processing is completed, the on-off mechanism can close the injection pipe while also scraping the residual materials inside the injection pipe into the material barrel, thereby keeping the inside of the injection pipe clean and tidy, and effectively avoiding the phenomenon of residual materials solidifying and clogging inside the injection pipe. The device is stable to use, and the process is fully automated, with high flexibility, stability and practicality.

[0005] In a first aspect of the present disclosure, a plastic shell injection molding device is provided, specifically comprising: a feed assembly, the feed assembly comprising a material barrel, a connecting seat and a feed channel, the bottom end of the connecting seat is fixedly mounted on the side of the material barrel, and the other end of the connecting seat is connected to an injection molding robot arm, one end of the feed channel is fixedly mounted on the other side of the material barrel, and the other end of the feed channel is connected to a material pipeline; and also comprising an on-off assembly, the on-off assembly consisting of a control mechanism and an on-off mechanism; The control mechanism includes a mounting seat, a plugging seat, an injection tube, a retaining frame, a positioning rod and a driving motor. The mounting seat is plugged into the bottom of the material barrel and is rotatably connected to the outside of the plugging seat. The injection tube is fixedly mounted on the bottom of the mounting seat, the positioning rod is rotatably connected to the top of the plugging seat, and the driving motor is fixedly mounted on the side of the material barrel. The on-off mechanism includes a main control rod, an on-off valve disc and an adaptive valve disc. The main control rod is inserted into the inside of the sealing seat, and the retaining frame is rotatably connected to the top of the main control rod. The adaptive valve disc is fixedly installed at the bottom of the main control rod. The on-off valve disc is rotatably connected to the bottom of the main control rod, and the adaptive valve disc is located at the bottom of the on-off valve disc. The on-off valve disc and the adaptive valve disc fit each other.

[0006] In at least some embodiments, the bottom of the material barrel is provided with threads, and the mounting seat is screwed to the bottom of the material barrel via the threads.

[0007] In at least some embodiments, a guide rod is provided on the top of the blocking seat, and the guide rod is inserted into the interior of the retaining frame.

[0008] In at least some embodiments, the bottom of the material barrel is provided with an anti-idiot groove, and the side of the blocking seat is provided with an anti-idiot block, and the anti-idiot block is inserted into the interior of the anti-idiot groove.

[0009] In at least some embodiments, a control gear is provided on the top of the positioning rod, and a driving gear is provided on the outside of the rotating shaft of the driving motor. When the anti-idiot block is inserted into the anti-idiot groove, the gear teeth of the control gear and the driving gear are engaged for transmission, and the top end of the positioning rod is rotatably connected to the inside of the material barrel.

[0010] In at least some embodiments, the rod body of the positioning rod is provided with threads on the outside, and the positioning rod is screwed to the inside of the retaining frame through the rod body threads.

[0011] In at least some embodiments, a control groove is provided on the outside of the main control rod, and a control protrusion is provided on the inside of the blocking seat, and the control protrusion is plugged into the inside of the control groove.

[0012] In at least some embodiments, the control groove is composed of a spiral opening and closing groove and a positioning groove arranged along the axial direction of the main control rod, and the bottom end of the opening and closing groove is connected to the top end of the positioning groove.

[0013] In at least some embodiments, the on-off valve disc and the adaptable valve disc are each provided with a group of control holes, and the control hole group consists of four fluid on-off holes, the angle between adjacent fluid on-off holes is ninety degrees, and when the control protrusion is located at the top of the opening and closing groove, the fluid on-off holes of the two groups of control hole groups overlap with each other.

[0014] In at least some embodiments, a track block is disposed outside the on-off valve disc, and a track groove is disposed inside the injection pipe, and the track block is inserted into the track groove.

[0015] The plastic shell injection molding device provided by the present invention has the following beneficial effects.

[0016] The on-off assembly has the function of controlling the on-off of the injection pipe and clearing the residual material inside the injection pipe. It is stable to use. During the injection molding process, the on-off mechanism is opened to allow the material to be injected into the mold through the injection pipe. When the processing is completed, the on-off mechanism can close the injection pipe and also scrape the residual material inside the injection pipe into the material barrel, thereby keeping the inside of the injection pipe clean and tidy, effectively avoiding the phenomenon of residual material solidification and blockage inside the injection pipe. It is stable to use, and the process is fully automated, which improves the flexibility, stability and practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0018] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0019] In the attached picture: Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the internal structure of the switch assembly of the present invention when it is in a closed state.

[0021] Figure 3 The present invention Figure 2 Schematic diagram of the structure of the enlarged part A in the middle. Figure 4 The present invention Figure 2 Schematic diagram of the enlarged structure of part B in the middle.

[0022] Figure 5 It is a schematic diagram of the structure of the switch assembly after disassembly.

[0023] Figure 6 The present invention Figure 2 Schematic diagram of the structure after the middle on-off component and feed component are disassembled.

[0024] Figure 7 The present invention Figure 2 Schematic diagram of the internal structure when the middle main control lever moves downward.

[0025] Figure 8 The present invention Figure 2 Schematic diagram of the internal structure after the middle switch component is turned on.

[0026] Fig. 9 The present invention Figure 8 Schematic diagram of the enlarged structure of part C in the middle.

[0027] Reference numerals list 1. Feeding assembly; 101. Material barrel; 1011. Anti-fool groove; 102. Connecting seat; 103. Feeding channel; 2. Control mechanism; 201. Mounting seat; 202. Blocking seat; 2021. Guide rod; 2022. Anti-fool block; 2023. Control protrusion; 203. Injection pipe; 2031. Track groove; 204. Cage; 205. Positioning rod; 2051. Control gear; 206. Drive motor; 2061. Drive gear; 3. On-off mechanism; 301. Main control rod; 3011. Opening and closing groove; 3012. Positioning groove; 302. On-off valve disc; 3021. Fluid on-off hole; 3022. Track block; 303. Adaptive valve disc. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Please refer to Figures 1 to 9 As shown: Embodiment 1: The present invention provides a plastic shell injection molding device, including a feed assembly 1, the feed assembly 1 includes a material barrel 101, a connecting seat 102 and a feed channel 103, the bottom end of the connecting seat 102 is fixedly mounted on the side of the material barrel 101, and the other end of the connecting seat 102 is connected to the injection molding robot arm, one end of the feed channel 103 is fixedly mounted on the other side of the material barrel 101, and the other end of the feed channel 103 is connected to the material pipeline; it also includes an on-off assembly, which is composed of a control mechanism 2 and an on-off mechanism 3; The control mechanism 2 includes a mounting seat 201, a blocking seat 202, an injection tube 203, a retaining frame 204, a positioning rod 205 and a driving motor 206. The mounting seat 201 is plugged into the bottom of the material barrel 101, and the mounting seat 201 is rotatably connected to the outside of the blocking seat 202. The injection tube 203 is fixedly mounted on the bottom of the mounting seat 201, the positioning rod 205 is rotatably connected to the top of the blocking seat 202, and the driving motor 206 is fixedly mounted on the side of the material barrel 101. The on-off mechanism 3 includes a main control rod 301, an on-off valve disc 302 and an adaptive valve disc 303. The main control rod 301 is inserted into the inside of the sealing seat 202, and the retaining frame 204 is rotatably connected to the top of the main control rod 301, and the adaptive valve disc 303 is fixedly installed at the bottom of the main control rod 301. The on-off valve disc 302 is rotatably connected to the bottom of the main control rod 301, and the adaptive valve disc 303 is located at the bottom of the on-off valve disc 303, and the on-off valve disc 302 and the adaptive valve disc 302 fit each other.

[0030] In the disclosed embodiment, a guide rod 2021 is provided on the top of the blocking seat 202, and the guide rod 2021 is inserted into the interior of the retaining frame 204. This design ensures that the retaining frame 204 will not be skewed or twisted when moving up and down, causing the device to become stuck and fail, and is stable to use.

[0031] In the disclosed embodiment, a thread is provided at the bottom of the material barrel 101, and the mounting seat 201 is screwed to the bottom of the material barrel 101 through a thread, an anti-idiot groove 1011 is provided at the bottom of the material barrel 101, and an anti-idiot block 2022 is provided on the side of the blocking seat 202, and the anti-idiot block 2022 is inserted into the interior of the anti-idiot groove 1011. This design enables the control mechanism 2 to stably engage and transmit the gear teeth of the control gear 2051 and the drive gear 2061 after the bottom of the material barrel 101 is installed through the mounting seat 201, thereby improving the stability of the device.

[0032] In the embodiment of the present disclosure, a control gear 2051 is provided at the top of the positioning rod 205, and a driving gear 2061 is provided on the outside of the rotating shaft of the driving motor 206. When the anti-idiot block 2022 is inserted into the anti-idiot groove 1011, the gear teeth of the control gear 2051 and the driving gear 2061 are engaged and transmitted, and the top end of the positioning rod 205 is rotatably connected to the inside of the material barrel 101. During use, the on-off mechanism 3 can realize the on-off control of the inside of the injection tube 203. When the retaining frame 204 is located at the top of the guide rod 2021, the closed state of the inside of the injection tube 203 can effectively prevent the leakage of the material inside the material barrel 101. At this time, the control protrusion 2023 is located at the bottom end of the positioning groove 3012, and the fluid on-off of the two groups of control holes is controlled. The holes 3021 are offset from each other, thereby achieving the blocking of the top of the injection tube 203. When the injection tube 203 needs to be opened for the injection molding processing operation of the water dispenser shell, the power of the drive motor 206 is turned on to make it rotate forward. When the drive motor 206 rotates forward, the drive gear 2061 can drive the positioning rod 205 to rotate synchronously through the control gear 2051. The outside of the rod body of the positioning rod 205 is provided with a thread, and the positioning rod 205 is screwed to the inside of the retaining frame 204 through the rod body thread. When the positioning rod 205 rotates, it can drive the retaining frame 204 to move downward through the rod body thread. When the retaining frame 204 moves downward, it can drive the main control rod 301 to move downward synchronously to realize the function of opening the inside of the injection tube 203, which is easy to use.

[0033] In the embodiment of the present disclosure, a control groove is provided on the outside of the main control rod 301, and a control protrusion 2023 is provided on the inside of the blocking seat 202. The control protrusion 2023 is inserted into the inside of the control groove. The control groove is composed of a spiral opening and closing groove 3011 and a positioning groove 3012 arranged along the axial direction of the main control rod 301, and the bottom end of the opening and closing groove 3011 is connected to the top of the positioning groove 3012. A group of control hole groups are provided inside the on-off valve disc 302 and the adaptive valve disc 303, and the control hole group is composed of four fluid on-off holes 3021. The angle between adjacent fluid on-off holes 3021 is ninety degrees, and when the control protrusion 2023 is located at the top of the opening and closing groove 3011, the fluid on-off holes 3021 of the two groups of control hole groups overlap with each other. In use, in the early and middle stages of the downward movement of the main control rod 301, the control protrusion 2023 is still located inside the positioning groove 3012 arranged along the axial direction of the main control rod 301. At this time, the adaptive valve disc 303 does not The on-off valve disc 302 is provided with a track block 3022 on the outside, and a track groove 2031 is provided on the inside of the injection pipe 203. The track block 3022 is inserted into the inside of the track groove 2031. Under the limiting action of the track groove 2031 and the track block 3022, the on-off valve disc 302 is unable to rotate by itself. Therefore, after the rotation of the adaptive valve disc 303, the fluid on-off holes 3021 of the two control hole groups will overlap with each other, thereby opening the inside of the injection pipe 203, so that the material can flow into the inside of the mold through the injection pipe 203 under the pressure of the material pipeline, thereby realizing the injection molding operation of the water dispenser shell, which is convenient and flexible to use.

[0034] Specific usage and function of this embodiment: In the present invention, after the injection molding robot moves the feed assembly 1 to a suitable position and inserts the injection tube 203 into a suitable position inside the mold, the injection molding operation can be started. The material pipeline pumps the material into the material barrel 101 with pressure through the feed channel 103. The injection molding and stop operations can be realized by controlling the opening and closing of the injection tube 203 by the on-off mechanism 3. The on-off mechanism 3 can realize the on-off control of the injection tube 203. When the retaining frame 204 is located at the top of the guide rod 2021, the closed state inside the injection tube 203 can effectively prevent the leakage of the material inside the material barrel 101. At this time, the control protrusion 2023 is located at the bottom end of the positioning groove 3012, and the two groups The fluid on-off holes 3021 of the control hole group are offset from each other, thereby achieving the blocking of the top of the injection tube 203. When the injection tube 203 needs to be opened for the injection molding processing operation of the water dispenser shell, the power of the drive motor 206 is turned on to make it rotate forward. When the drive motor 206 rotates forward, the drive gear 2061 can drive the positioning rod 205 to rotate synchronously through the control gear 2051. When the positioning rod 205 rotates, it can drive the retaining frame 204 to move downward through the rod body thread. When the retaining frame 204 moves downward, it can drive the main control rod 301 to move downward synchronously to achieve the function of opening the inside of the injection tube 203. In the early and middle stages of the downward movement of the main control rod 301, the control protrusion 2023 is still located along the axis of the main control rod 301 When the main control rod 301 moves to the inside of the positioning groove 3012, the adaptive valve disc 303 does not rotate, so that it can stably maintain the blocking state and move down until the main control rod 301 moves to the end of the main control rod 301, and the control protrusion 2023 enters the inside of the spiral opening and closing groove 3011. Under the guidance of the opening and closing groove 3011, the main control rod 301 will rotate and drive the adaptive valve disc 303 to rotate synchronously. Under the limiting effect of the track groove 2031 and the track block 3022, the on-off valve disc 302 cannot rotate by itself. Therefore, after the adaptive valve disc 303 rotates, the fluid on-off holes 3021 of the two control hole groups will overlap with each other, thereby opening the inside of the injection pipe 203, so that the material can pass through the injection pipe 2 under the pressure of the material pipeline. 03 flows into the interior of the mold to realize the injection molding operation of the water dispenser shell. After a single injection molding process is completed, the injection pipe 203 can be closed by the on-off mechanism 3, which can be achieved by controlling the driving motor 206 to reverse. During the closing process of the injection pipe 203, the on-off valve disc 302 can scrape the residual material inside the injection pipe 203 back into the material barrel 101 to avoid the problem of residual material inside the injection pipe 203 and the blocking of the injection pipe 203 after the material is cooled. When the driving motor 206 is reversed, it can drive the main control rod 301 to move upward to realize the closing action. The main control rod 301 will rotate and reset to adapt to the valve disc 303 in the early stage of the upward movement. After that, the fluid on-off holes 3021 of the two control hole groups will be restored to the offset closure.That is, when the main control rod 301 moves upward, the fluid on-off holes 3021 of the two control hole groups will remain blocked, so that the on-off valve disc 302 will scrape the residual material inside the injection pipe 203 when it moves upward.

[0035] In another embodiment, a heating device is installed inside the material barrel 101 for heating the material flowing through it. At the same time, after restarting after a long period of shutdown, the material remaining inside the material barrel 101 can also be quickly heated, thereby improving the fluidity of the material and greatly improving the processing quality.

[0036] In this article, there are a few points to note: 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0037] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0038] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A plastic shell injection molding device, comprising: a feed assembly (1), the feed assembly (1) comprising a material barrel (101), a connecting seat (102) and a feed channel (103), the bottom end of the connecting seat (102) being fixedly mounted on the side of the material barrel (101), and the other end of the connecting seat (102) being connected to an injection molding robot arm, one end of the feed channel (103) being fixedly mounted on the other side of the material barrel (101), and the other end of the feed channel (103) being connected to a material pipeline; characterized in that: Also included is an on-off assembly, the on-off assembly consisting of a control mechanism (2) and an on-off mechanism (3); The control mechanism (2) comprises a mounting seat (201), a blocking seat (202), an injection tube (203), a retaining frame (204), a positioning rod (205) and a driving motor (206); the mounting seat (201) is plugged into the bottom of the material barrel (101), and the mounting seat (201) is rotatably connected to the outside of the blocking seat (202); the injection tube (203) is fixedly mounted on the bottom of the mounting seat (201), the positioning rod (205) is rotatably connected to the top of the blocking seat (202), and the driving motor (206) is fixedly mounted on the side of the material barrel (101); The on-off mechanism (3) comprises a main control rod (301), an on-off valve disc (302) and an adaptable valve disc (303); the main control rod (301) is inserted into the interior of the blocking seat (202), and the retaining frame (204) is rotatably connected to the top of the main control rod (301); the adaptable valve disc (303) is fixedly mounted on the bottom of the main control rod (301); the on-off valve disc (302) is rotatably connected to the bottom of the main control rod (301), and the adaptable valve disc (303) is located at the bottom of the on-off valve disc (303); the on-off valve disc (302) and the adaptable valve disc (302) are in contact with each other.

2. A plastic housing injection molding device as claimed in claim 1, characterized in that: The bottom of the material barrel (101) is provided with threads, and the mounting seat (201) is screwed to the bottom of the material barrel (101) via the threads.

3. A plastic housing injection molding device as claimed in claim 2, characterized in that: A guide rod (2021) is provided on the top of the blocking seat (202), and the guide rod (2021) is inserted into the interior of the retaining frame (204).

4. A plastic housing injection molding device as claimed in claim 3, characterized in that: The bottom of the material barrel (101) is provided with an anti-foolproof groove (1011), and the side of the blocking seat (202) is provided with an anti-foolproof block (2022), and the anti-foolproof block (2022) is inserted into the interior of the anti-foolproof groove (1011).

5. A plastic housing injection molding device as claimed in claim 4, characterized in that: A control gear (2051) is provided at the top of the positioning rod (205), and a driving gear (2061) is provided on the outside of the rotating shaft of the driving motor (206); when the anti-foolproof block (2022) is inserted into the anti-foolproof groove (1011), the gear teeth of the control gear (2051) and the driving gear (2061) are engaged for transmission, and the top end of the positioning rod (205) is rotatably connected to the inside of the material barrel (101).

6. A plastic housing injection molding device as claimed in claim 5, characterized in that: The exterior of the rod body of the positioning rod (205) is provided with threads, and the positioning rod (205) is screwed to the interior of the retaining frame (204) via the rod body threads.

7. A plastic housing injection molding device as claimed in claim 6, characterized in that: The main control rod (301) is provided with a control groove on the outside, and the blocking seat (202) is provided with a control protrusion (2023) on the inside, and the control protrusion (2023) is inserted into the inside of the control groove.

8. A plastic housing injection molding device as claimed in claim 7, characterized in that: The control groove is composed of a spiral opening and closing groove (3011) and a positioning groove (3012) arranged along the axial direction of the main control rod (301), and the bottom end of the opening and closing groove (3011) is connected to the top end of the positioning groove (3012).

9. A plastic housing injection molding device as claimed in claim 8, characterized in that: The on-off valve disc (302) and the adaptable valve disc (303) are each provided with a control hole group inside, and the control hole group consists of four fluid on-off holes (3021), the angle between adjacent fluid on-off holes (3021) is ninety degrees, and when the control protrusion (2023) is located at the top of the opening and closing groove (3011), the fluid on-off holes (3021) of the two control hole groups overlap with each other.

10. A plastic housing injection molding device as claimed in claim 9, characterized in that: A track block (3022) is provided outside the on-off valve disc (302), and a track groove (2031) is provided inside the injection pipe (203), and the track block (3022) is inserted into the track groove (2031).

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