Plastic clothes hanger multi-cavity injection mold

Abstract

The utility model belongs to mould technical field relates to a kind of plastic clothes hanger multi-cavity injection mould.The utility model, including plastic clothes hanger injection mould lower die and plastic clothes hanger injection mould upper die, the injection mould upper die upper of plastic clothes hanger is equipped with injection mainboard, and the injection mould upper die is equipped with upper multi-channel shunt part and clothes hanger upper part multi-cavity forming structure, and upper multi-channel shunt part is communicated with injection mainboard.The utility model in injection moulding process, using multi-cavity synchronous forming design, four cavities are formed by upper and lower mould cooperation, four plastic clothes hangers can be simultaneously produced, production efficiency is greatly improved, meet the demand of large-scale production, optimize channel structure, upper and lower shunt channel are all used cross-shaped distribution, cooperate arc-shaped end connection channel, ensure that melt is evenly distributed between each cavity, flow resistance is small, reduce forming defect, improve plastic part consistency.

Description

Technical Field

[0001] This utility model belongs to the field of mold technology and relates to a multi-cavity injection mold for plastic clothes hangers. Background Technology

[0002] In the plastic hanger manufacturing industry, injection molding is the mainstream processing method. Traditionally, single-cavity injection molds can only produce one plastic hanger at a time, resulting in extremely low production efficiency and making it difficult to meet the demands of large-scale mass production. Existing multi-cavity injection molds generally suffer from unreasonable runner design, leading to uneven melt flow and significant differences in pressure loss during multi-cavity distribution. This results in inconsistent molding quality across different cavities, causing defects such as uneven wall thickness, material shortages, and shrinkage marks. Furthermore, the demolding structure design of existing multi-cavity molds is imperfect. Runner waste and the plastic parts are often ejected through the same ejection mechanism, easily causing deformation of the plastic parts during demolding and adhesion between waste and the plastic parts, increasing subsequent separation processes and further impacting production efficiency and product yield. Therefore, there is an urgent need for a multi-cavity injection mold with uniform runner distribution, stable molding quality, and smooth demolding to address the shortcomings of existing technologies.

[0003] To overcome the shortcomings of existing technologies, people have continuously explored and proposed various solutions. For example, Chinese patent discloses a plastic hanger injection mold [application number: 201710797231.3]. The upper mold and lower mold cooperate to form the cavity of the hanger. The cavity includes a hanger cavity and a hook cavity. Multiple through holes are provided at the crossbar cavity below the hanger cavity. The hook cavity is provided with an upper clamping plate and a lower clamping plate. The hook cavity is fixed to the hanger cavity through the upper clamping plate and the lower clamping plate. The hook cavity is kept in communication with the cavity of the hanger cavity through the through holes. Hook cavities are provided on both the left and right sides of the crossbar cavity of the hanger cavity, and the hook cavities on both sides are oriented in opposite directions. However, this solution still has the problem of unreasonable runner design during injection molding. The melt is prone to uneven flow and large differences in pressure loss during multi-cavity distribution, resulting in inconsistent molding quality of plastic parts in each cavity, such as uneven wall thickness, material shortage, shrinkage marks, and deformation of plastic parts during demolding, as well as the problem of waste material sticking to plastic parts, which increases the need for subsequent separation processes. Utility Model Content

[0004] The purpose of this invention is to address the above-mentioned problems by providing a multi-cavity injection mold for plastic clothes hangers.

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

[0006] A multi-cavity injection mold for plastic hangers includes a lower injection mold and an upper injection mold. An injection main board is located above the upper injection mold. The upper injection mold contains an upper multi-channel flow divider and an upper multi-cavity molding structure for the hanger. The upper multi-channel flow divider is connected to the injection main board. The lower injection mold contains a lower multi-channel flow divider and a lower multi-cavity molding structure for the hanger. When the mold is closed, the upper and lower multi-channel flow dividers close together, and the upper and lower multi-cavity molding structures of the hanger close together to form multiple cavities. Below the lower injection mold, a runner waste ejector and a direct ejector for the plastic part are provided, both penetrating the lower injection mold. The runner waste ejector corresponds to the lower multi-channel flow divider, and the direct ejector corresponds to the lower multi-cavity molding structure of the hanger.

[0007] In the aforementioned multi-cavity injection mold for plastic hangers, the upper multi-channel diversion section includes four upper flow channels disposed within the upper injection mold of the plastic hanger, and a first end connection is provided between the upper flow channels and the upper multi-cavity molding structure of the hanger.

[0008] In the aforementioned multi-cavity injection mold for plastic hangers, the first end connection portion includes a first hanger head connecting flow channel disposed between the upper flow channel and the upper multi-cavity molding structure of the hanger, and the first hanger head connecting flow channel is arc-shaped.

[0009] In the aforementioned multi-cavity injection mold for plastic hangers, one end of the first hanger head connecting channel is connected to the upper part of the channel, and the other end is connected to the upper multi-cavity molding structure of the hanger. The four upper part channels are distributed in a cross shape.

[0010] In the aforementioned multi-cavity injection mold for plastic hangers, the upper multi-cavity molding structure of the hanger includes four upper molding cavities of the hanger disposed within the upper injection mold of the plastic hanger, and the head of each upper molding cavity of the hanger is connected to the first hanger head connecting channel.

[0011] In the aforementioned multi-cavity injection mold for plastic hangers, the lower multi-channel flow distribution section includes four lower flow channels disposed within the lower injection mold of the plastic hanger. The four lower flow channels are distributed in a cross shape, and a second end connection is provided between the lower flow channels and the lower multi-cavity molding structure of the hanger.

[0012] In the aforementioned multi-cavity injection mold for plastic hangers, the second end connection portion includes a second hanger head connecting flow channel disposed between the lower flow channel and the lower multi-cavity molding structure of the hanger, and the second hanger head connecting flow channel is arc-shaped.

[0013] In the aforementioned multi-cavity injection mold for plastic hangers, the lower multi-cavity molding structure of the hanger includes four lower molding cavities disposed within the lower mold of the plastic hanger injection, and the head of each lower molding cavity is connected to the second hanger head connecting channel.

[0014] In the aforementioned multi-cavity injection mold for plastic hangers, the runner ejector includes a waste ejection rod disposed below the lower mold of the plastic hanger injection mold, and the plastic part ejector includes a plastic part ejection rod disposed below the lower mold of the plastic hanger injection mold. The waste ejection rod extends into the lower runner, and the plastic part ejection rod extends into the lower molding cavity of the hanger.

[0015] In the aforementioned multi-cavity injection mold for plastic hangers, an ejector pin connecting plate is provided below the lower mold of the plastic hanger injection mold, and the waste ejector pin and the plastic part ejector pin are respectively connected to the ejector pin connecting plate.

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

[0017] 1. In the injection molding process, this utility model adopts a multi-cavity synchronous molding design, which forms four cavities through the cooperation of the upper and lower molds, and can produce four plastic hangers at the same time, which greatly improves production efficiency, meets the needs of large-scale production, optimizes the runner structure, and adopts a cross-shaped distribution of the upper and lower runners, and connects the runners with arc-shaped ends to ensure that the melt is evenly distributed between each cavity, with low flow resistance, reducing molding defects and improving the consistency of plastic parts.

[0018] 2. This utility model achieves the separation and ejection of runner waste and plastic parts by setting up a runner waste ejection part and a plastic part direct ejection part, thereby avoiding demolding damage, simplifying subsequent processes, and improving production continuity.

[0019] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a cross-sectional schematic diagram of the present invention.

[0022] Figure 3 This is a schematic diagram of the upper injection mold for plastic clothes hangers.

[0023] Figure 4 This is a partial structural schematic diagram of the present invention.

[0024] Figure 5 This is a partial structural schematic diagram of another aspect of this utility model.

[0025] In the diagram: 1. Lower mold for plastic hanger injection; 2. Upper mold for plastic hanger injection; 3. Main injection board; 4. Upper multi-channel runner; 5. Upper multi-cavity molding structure of hanger; 6. Lower multi-channel runner; 7. Lower multi-cavity molding structure of hanger; 8. Waste ejector; 9. Upper runner; 10. First end connector; 11. First hanger head connecting runner; 12. Upper molding chamber of hanger; 13. Lower runner; 14. Second end connector; 15. Second hanger head connecting runner; 16. Lower molding chamber of hanger; 17. Waste ejector rod; 18. Ejector rod; 19. Ejector rod connecting plate; 20. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings.

[0027] like Figure 1-5 As shown, a multi-cavity injection mold for a plastic hanger includes a lower injection mold 1 and an upper injection mold 2. An injection main board 3 is located above the upper injection mold 2. The upper injection mold 2 contains an upper multi-channel flow divider 4 and an upper multi-cavity forming structure 5 for the hanger. The upper multi-channel flow divider 4 is connected to the injection main board 3. The lower injection mold 1 contains a lower multi-channel flow divider 6 and a lower multi-cavity forming structure 7 for the hanger. When the mold is closed... The upper multi-channel flow divider 4 and the lower multi-channel flow divider 6 are joined together, and the upper multi-cavity molding structure 5 and the lower multi-cavity molding structure 7 of the hanger are joined together to form multiple cavities. The lower part of the plastic hanger injection mold 1 is provided with a flow channel waste ejector 8 and a plastic part direct ejector 9 that pass through the plastic hanger injection mold 1. The flow channel waste ejector 8 is positioned corresponding to the lower multi-channel flow divider 6, and the plastic part direct ejector 9 is positioned corresponding to the lower multi-cavity molding structure 7 of the hanger.

[0028] In this embodiment, the injection main board 3 is fixedly installed above the upper mold 2 of the plastic hanger injection, providing a channel for melt injection; the upper multi-channel diversion part 4 and the upper multi-cavity molding structure 5 of the hanger are both embedded inside the upper mold 2 of the plastic hanger injection, and the upper multi-channel diversion part 4 is connected to the injection main board 3 to ensure that the melt can flow in smoothly; the lower multi-channel diversion part 6 and the lower multi-cavity molding structure 7 of the hanger are embedded inside the lower mold 1 of the plastic hanger injection, and are precisely aligned with the corresponding structure positions of the upper mold. When the mold is closed, the upper mold 2 of the plastic hanger injection and the lower mold 1 of the plastic hanger injection are tightly fitted, the upper multi-channel diversion part 4 and the lower multi-channel diversion part 6 are precisely closed to form a complete diversion channel, and the upper multi-cavity molding structure 5 and the lower multi-cavity molding structure 7 of the hanger are closed to form four independent hanger molding cavities. Both the runner waste ejector 8 and the plastic part direct ejector 9 are installed below the lower mold 1 of the plastic hanger injection molding. The position of the runner waste ejector 8 corresponds to the waste collection area of ​​the lower multi-runner diversion section 6, and the position of the plastic part direct ejector 9 corresponds to the bottom of the cavity of the lower multi-cavity molding structure 7 of the hanger. Through the corresponding structural design of the upper and lower molds, the integration of multi-cavity synchronous molding and diversion channels is realized. The runner and cavity are precisely connected to ensure efficient melt filling. The corresponding design of the independent ejector provides a structural basis for subsequent separation ejection and avoids mutual interference between the runner waste and the plastic part during demolding.

[0029] Combination Figure 1-5 As shown, the upper multi-channel diversion section 4 includes four upper flow channels 10 disposed in the upper mold 2 of the plastic hanger injection molding process, and a first end connection section 11 is provided between the upper flow channels 10 and the upper multi-cavity molding structure 5 of the hanger.

[0030] Specifically, one end of each of the four upper flow channels 10 converges and connects to the outlet of the injection molding main board 3, while the other end is connected to the four cavity inlets of the upper multi-cavity molding structure 5 of the hanger through the first end connection part 11. The first end connection part 11 serves as a transition structure between the upper flow channels 10 and the upper multi-cavity molding structure 5 of the hanger, achieving a smooth transition of the melt from the flow channels to the cavities. The design of the four upper flow channels 10 is precisely matched with the four cavities, ensuring that each cavity can receive an independent and uniform melt supply. The setting of the first end connection part 11 avoids the melt directly impacting the cavity, reduces flow dead zones, and improves filling stability.

[0031] The first end connection part 11 includes a first hanger head connection flow channel 12 disposed between the upper flow channel 10 and the upper multi-cavity molding structure 5 of the hanger, and the first hanger head connection flow channel 12 is arc-shaped.

[0032] In this embodiment, one end of the first hanger head connecting channel 12 is smoothly connected to the end of the upper channel 10, with no steps or sharp corners at the connection. The other end is smoothly connected to the cavity head inlet of the upper multi-cavity molding structure 5 of the hanger, forming a continuous flow channel. The arc-shaped channel can reduce the resistance during the melt flow process, avoid the melt from generating eddies or stagnation at corners, ensure smooth melt filling, and at the same time reduce stress concentration at the head of the plastic part, thereby improving the structural strength of the plastic part.

[0033] Combination Figure 3 As shown, one end of the first hanger head connecting channel 12 is connected to the upper part channel 10, and the other end is connected to the upper multi-cavity molding structure 5 of the hanger. The four upper part channels 10 are distributed in a cross shape.

[0034] In this embodiment, the cross-shaped distribution ensures that the lengths of the four upper flow channels 10 are consistent, and the melt travels the same distance from the center to each cavity, ensuring that the filling pressure and speed of each cavity are completely consistent. The design of the two ends of the first hanger head connecting the flow channel 12 achieves seamless connection between the flow channel and the cavity, reducing melt flow loss. Compared with traditional annular or asymmetrical flow channels, the cross-shaped flow channel distribution design can maximize the uniformity of melt distribution. Combined with the collaborative design of the arc-shaped connecting flow channel, a "center flow + arc transition" flow channel system is formed, which solves the problem of uneven filling of each cavity in a multi-cavity mold.

[0035] The upper multi-cavity molding structure 5 of the hanger includes four upper molding cavities 13 of the hanger disposed in the upper mold 2 of the plastic hanger injection molding, and the head of the upper molding cavity 13 of the hanger is connected to the first hanger head connecting channel 12.

[0036] In this embodiment, each upper molding chamber 13 of the hanger has an inlet at its head, which precisely connects to the end of the first hanger head connecting channel 12 to ensure that the melt can smoothly enter the cavity through the connecting channel. The internal contour of the upper molding chamber 13 of the hanger is perfectly matched with the shape of the upper part of the plastic hanger, including the hanger hook part and the shoulder contour. The synchronous design of the four upper molding chambers 13 of the hanger achieves the goal of producing four plastic parts in a single injection molding, which greatly improves production efficiency. The precise connection between the cavity head and the connecting channel avoids melt leakage and ensures the integrity of the plastic part molding.

[0037] Combination Figure 4 As shown, the lower multi-channel diversion section 6 includes four lower flow channels 14 disposed in the lower mold 1 of the plastic hanger injection molding process. The four lower flow channels 14 are distributed in a cross shape. A second end connection section 15 is provided between the lower flow channels 14 and the lower multi-cavity molding structure 7 of the hanger.

[0038] In this embodiment, the four lower runners 14 are also arranged in a cross shape, extending in four directions from the center of the lower mold 1 of the plastic hanger injection molding. When the mold is closed, the upper end face of the lower runner 14 fits tightly with the lower end face of the upper runner 10, forming a complete flow channel. The second end connection part 15 is set between the lower runner 14 and the lower multi-cavity molding structure 7 of the hanger, serving as a transition connection part between the two. The precise docking of the lower runner 10 and the upper runner 14 ensures the sealing of the flow channel and avoids melt leakage. The cross shape corresponds to the upper mold runner, ensuring the continuity and consistency of the melt flow path. The setting of the second end connection part 15 provides a smooth transition for the melt to enter the lower cavity from the lower runner.

[0039] The second end connection portion 15 includes a second hanger head connection channel 16 disposed between the lower flow channel 14 and the lower multi-cavity molding structure 7 of the hanger, and the second hanger head connection channel 16 is arc-shaped.

[0040] In this embodiment, one end of the second hanger head connecting channel 16 smoothly connects to the end of the lower channel 14, and the other end smoothly transitions to the head inlet of the lower molding chamber 17 of the hanger. When the mold is closed, the second hanger head connecting channel 16 and the first hanger head connecting channel 12 close together to form a complete arc-shaped connecting channel. The internal contour of this channel matches the upper and lower surface contours of the plastic hanger head. The closing design of the upper and lower arc-shaped connecting channels forms a wrapping melt inlet channel, ensuring that the melt can evenly wrap the hanger head cavity and avoid filling dead corners. The consistency of the arc structure ensures that the melt flows at a consistent speed in the upper and lower channels, improving the consistency of the upper and lower surface quality of the plastic part head.

[0041] Combination Figure 1-5 As shown, the lower multi-cavity molding structure 7 of the hanger includes four lower molding cavities 17 of the hanger disposed in the lower mold of the plastic hanger injection molding 1, and the head of the lower molding cavity 17 of the hanger is connected to the second hanger head connecting channel 16.

[0042] In this embodiment, the head of each hanger lower molding chamber 17 is precisely aligned with the end of the second hanger head connecting channel 16, and the internal contour is perfectly matched with the shape of the lower part of the plastic hanger, including the main body of the hanger and the lower structure of the hook. When the mold is closed, the lower molding chamber 17 of the hanger closes with the corresponding upper molding chamber 13 of the hanger to form a complete plastic hanger molding cavity. The gap between the cavities is uniform, ensuring that the wall thickness of the plastic part is consistent. The precise alignment of the four lower molding chambers 17 of the hanger with the upper cavity ensures the overall molding accuracy of the plastic part. The precise matching of the internal contour of the cavity with the shape of the plastic part reduces the subsequent trimming process and improves the product qualification rate.

[0043] Combination Figure 1-5As shown, the waste ejector 8 includes a waste ejector rod 18 disposed below the lower mold 1 of the plastic hanger injection molding process, and the plastic part ejector demolding part 9 includes a plastic part ejector rod 19 disposed below the lower mold 1 of the plastic hanger injection molding process. The waste ejector rod 18 extends into the lower part of the flow channel 14, and the plastic part ejector rod 19 extends into the lower molding chamber 17 of the hanger.

[0044] In this embodiment, the waste ejection rod 18 is located below the lower mold 1 of the plastic hanger injection molding process. Its upper end penetrates the interior of the lower mold 1 and extends into the waste collection area of ​​the lower runner 14, which is the central convergence point of the four lower runners 14. The plastic part ejection rod 19 is also located below the lower mold 1 of the plastic hanger injection molding process. Its upper end penetrates the interior of the lower mold 1 and extends into the bottom center of the lower molding chamber 17 of the hanger, corresponding to the force balance point of the plastic part. The waste ejection rod 18 acts directly on the core area of ​​the runner waste, and the force is concentrated during ejection, which can quickly separate the runner waste. The plastic part ejection rod 19 acts on the force balance point at the bottom of the plastic part, avoiding deformation or damage to the plastic part during ejection. The independent setting of the two realizes the synchronous separation of the runner waste and the plastic part, improving the demolding efficiency.

[0045] Combination Figure 1-5 As shown, a push rod connecting plate 20 is provided below the lower mold 1 of the plastic hanger injection molding process. The waste ejection rod 18 and the plastic part ejection rod 19 are respectively connected to the push rod connecting plate 20.

[0046] In this embodiment, the lower end of the scrap ejection rod 18 is fixedly connected to the corresponding position on the upper surface of the ejector plate 20 by bolts, and the lower end of the plastic part ejection rod 19 is also fixedly connected to the upper surface of the ejector plate 20 by bolts. The ejector plate 20 is connected to an external ejection drive mechanism, which drives the ejector plate 20 to move up and down reciprocally, thereby driving the scrap ejection rod 18 and the plastic part ejection rod 19 to move up and down synchronously. The setting of the ejector plate 20 realizes the synchronous linkage of multiple ejectors, ensuring that the ejection speed and stroke of the scrap ejection rod 18 and the plastic part ejection rod 19 are completely consistent, avoiding demolding failure caused by the lag of a single ejector action. The bolt connection method facilitates the disassembly and replacement of ejectors, reducing mold maintenance costs.

[0047] The working principle of this utility model is as follows:

[0048] During mold closing, the external mold closing mechanism drives the upper mold 2 of the plastic hanger injection to move downwards, tightly fitting with the lower mold 1 of the plastic hanger injection. At this time, the upper multi-channel flow divider 4 and the lower multi-channel flow divider 6 precisely close, and the four upper flow channels 10 and the four lower flow channels 14 connect to form a complete cross-shaped flow channel; the upper multi-cavity molding structure 5 and the lower multi-cavity molding structure 7 of the hanger close, and the four upper molding chambers 13 and the four lower molding chambers 17 of the hanger correspond one-to-one, forming four complete plastic hanger molding cavities; the first hanger head connecting flow channel 12 and the second hanger head connecting flow channel 16 close, forming a complete arc-shaped melt inlet channel, and the injection molding machine injects molten plastic into the mold through the injection main plate 3. After entering the cross-shaped flow channel, the melt is evenly distributed along the four upper flow channels 10 and lower flow channels 14. It is then smoothly introduced into the four molding cavities via the arc-shaped first hanger head connecting flow channel 12 and the second hanger head connecting flow channel 16 until the melt fills the entire cavity. The melt maintains a certain pressure within the cavity and is cooled by the internal cooling system of the mold. Once the melt has completely solidified into a plastic hanger part, the cooling stage ends. During demolding, the external ejection drive mechanism moves the ejector pin connecting plate 20 upwards. Simultaneously, the ejector pin connecting plate 20 moves the scrap ejector rod 18 and the plastic part ejector rod 19 upwards. The scrap ejector rod 18 pushes the waste material in the lower flow channel 14 upwards, separating it from the flow channel; the plastic part ejector rod 19 pushes the plastic hanger part at the bottom of the cavity upwards, separating it from the cavity wall. The waste material and the plastic part are simultaneously ejected from the mold. Subsequently, they are separated manually or by automated equipment, completing one injection molding cycle.

[0049] 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 replace them, without departing from the spirit of this utility model.

[0050] Although this article frequently uses terms such as 1. lower mold for plastic hanger injection molding, 2. upper mold for plastic hanger injection molding, 3. main injection board, 4. upper multi-channel runner, 5. upper multi-cavity molding structure of hanger, 6. lower multi-channel runner, 7. lower multi-cavity molding structure of hanger, 8. runner waste ejector, 9. plastic part direct ejector, 10. upper runner, 11. first end connection, 12. first hanger head connecting runner, 13. upper molding chamber of hanger, 14. lower runner, 15. second end connection, 16. second hanger head connecting runner, 17. lower molding chamber of hanger, 18. waste ejector rod, 19. plastic part ejector rod, and 20. ejector rod connecting plate, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A multi-cavity injection mold for plastic hangers, comprising a lower injection mold (1) and an upper injection mold (2), characterized in that, The upper injection mold (2) of the plastic hanger is provided with an injection main board (3). The upper injection mold (2) of the plastic hanger is provided with an upper multi-channel flow divider (4) and an upper multi-cavity molding structure (5) of the hanger. The upper multi-channel flow divider (4) is connected to the injection main board (3). The lower injection mold (1) of the plastic hanger is provided with a lower multi-channel flow divider (6) and a lower multi-cavity molding structure (7) of the hanger. When the mold is closed, the upper multi-channel flow divider (4) and the lower multi-channel flow divider (6) are connected. The upper multi-cavity molding structure (5) and the lower multi-cavity molding structure (7) of the hanger are joined together to form multiple cavities. The lower part of the plastic hanger injection mold (1) is provided with a runner waste ejector (8) and a plastic part direct ejector (9) that pass through the plastic hanger injection mold (1). The runner waste ejector (8) corresponds to the position of the lower multi-runner diversion part (6), and the plastic part direct ejector (9) corresponds to the position of the lower multi-cavity molding structure (7).

2. The multi-cavity injection mold for plastic clothes hangers according to claim 1, characterized in that, The upper multi-channel diversion section (4) includes four upper flow channels (10) disposed in the upper mold (2) of the plastic hanger injection molding. A first end connection (11) is provided between the upper flow channels (10) and the upper multi-cavity molding structure (5) of the hanger.

3. The multi-cavity injection mold for plastic clothes hangers according to claim 2, characterized in that, The first end connection part (11) includes a first hanger head connection flow channel (12) disposed between the upper flow channel (10) and the upper multi-cavity molding structure (5) of the hanger, and the first hanger head connection flow channel (12) is arc-shaped.

4. The multi-cavity injection mold for plastic clothes hangers according to claim 3, characterized in that, One end of the first hanger head connecting channel (12) is connected to the upper part channel (10), and the other end is connected to the upper multi-cavity molding structure (5) of the hanger. The four upper part channels (10) are distributed in a cross shape.

5. The multi-cavity injection mold for plastic clothes hangers according to claim 4, characterized in that, The upper multi-cavity molding structure (5) of the hanger includes four upper molding cavities (13) of the hanger set in the upper mold (2) of the plastic hanger injection molding. The head of the upper molding cavity (13) of the hanger is connected to the first hanger head connecting channel (12).

6. The multi-cavity injection mold for plastic clothes hangers according to claim 1, characterized in that, The lower multi-channel flow divider (6) includes four lower flow channels (14) disposed in the lower mold (1) of the plastic hanger injection molding. The four lower flow channels (14) are distributed in a cross shape. A second end connection (15) is provided between the lower flow channels (14) and the lower multi-cavity molding structure (7) of the hanger.

7. The multi-cavity injection mold for plastic clothes hangers according to claim 6, characterized in that, The second end connection part (15) includes a second hanger head connection flow channel (16) disposed between the lower flow channel (14) and the lower multi-cavity molding structure (7) of the hanger, and the second hanger head connection flow channel (16) is arc-shaped.

8. The multi-cavity injection mold for plastic clothes hangers according to claim 7, characterized in that, The lower multi-cavity molding structure (7) of the hanger includes four lower molding cavities (17) of the hanger disposed in the lower mold (1) of the plastic hanger injection molding process. The head of the lower molding cavity (17) of the hanger is connected to the second hanger head connecting channel (16).

9. The multi-cavity injection mold for plastic clothes hangers according to claim 8, characterized in that, The waste ejector (8) includes a waste ejector rod (18) disposed below the lower mold (1) of the plastic hanger injection molding process, and the plastic part ejector (9) includes a plastic part ejector rod (19) disposed below the lower mold (1) of the plastic hanger injection molding process. The waste ejector rod (18) extends into the lower part of the flow channel (14), and the plastic part ejector rod (19) extends into the lower molding chamber (17) of the hanger.

10. The multi-cavity injection mold for plastic clothes hangers according to claim 9, characterized in that, The lower mold (1) for plastic hanger injection molding is provided with a push rod connecting plate (20), and the waste ejection rod (18) and the plastic part ejection rod (19) are respectively connected to the push rod connecting plate (20).

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