Oblique demolding linkage structure and air conditioner drainage nozzle mold

Abstract

The invention discloses an inclined demolding linkage structure and an air conditioner drainage nozzle mold, the inclined demolding linkage structure comprises a movable mold forming part, a movable mold frame and a demolding linkage assembly, and the movable mold forming part comprises a movable mold forming mold core, an inclined forming block and an inclined guide block; the inclined guide block is arranged on the supporting plate, the movable mold forming mold core is arranged on the movable mold plate, the inclined forming block penetrates through the movable mold forming mold core, and the abutting end of the inclined forming block is matched with the inclined guide block. The demolding linkage assembly comprises an ejection demolding mechanism and a mold plate clutch driving mechanism, during ejection demolding, the ejection demolding mechanism and the mold plate clutch driving mechanism are linked to drive the movable mold plate to be far away from the supporting plate by a preset distance, the inclined forming block slides along the inclined guide block, separation from the plastic part is achieved by means of the movement difference generated by mold plate separation, then linkage is released by the mold plate clutch driving mechanism, and demolding is achieved. And the ejection demolding mechanism continuously acts to complete full demolding. Therefore, external driving is not needed, the mold structure is simplified, the cost and control difficulty are reduced, a workpiece is prevented from being strained through track constraint, smooth demolding is ensured, and the production quality of a plastic part is improved.

Description

Technical Field

[0001] This invention relates to the field of mold technology, and in particular to an inclined demolding linkage structure and an air conditioner drain nozzle mold. Background Technology

[0003] Injection molds are the core tooling in plastic injection molding. They shape plastic parts by closing a cavity, injecting molten plastic into the cavity, allowing it to cool and solidify before demolding. They are widely used in the production of household appliance components. In actual manufacturing, the structural shape of different plastic parts affects the overall structure and design complexity of the injection mold. Especially for irregularly shaped plastic parts, improper mold design can lead to problems such as difficult demolding, core-pulling interference, or the need for additional processing steps, thus impacting production efficiency.

[0004] Please see Figure 1 and Figure 2 As shown, this is a uniquely shaped air conditioner drain nozzle structure with an oblique parting line. Unlike conventional plastic parts (the parting line of simple plastic parts is usually upper and lower, making demolding and core pulling easy), this air conditioner drain nozzle structure 20 includes an umbrella-shaped mounting body 21 and a bent connecting pipe 22. One end of the bent connecting pipe 22 is connected to the top of the umbrella-shaped mounting body 21, and the other end of the bent connecting pipe is bent at 90° and extends away from the umbrella-shaped mounting body. A uniquely shaped clip is also provided on the side of the umbrella-shaped mounting body 21 away from the bent connecting pipe 22. The buckle 23 and the umbrella-shaped mounting cavity 24 connected to the bent connecting pipe are provided with locking holes and locking blocks; this means that during the molding process of the air conditioner drain nozzle structure, not only is it necessary to perform upper and lower parting, but also to involve lateral and oblique parting, which leads to demolding interference; therefore, due to the complexity of the parting surface, the mold design difficulty is greatly increased, especially for the demolding interference caused by the oblique parting at the position of the irregular buckle. If the design is not proper, it will directly cause the plastic part to be torn or broken or chipped during demolding, especially the weak position at the locking hole.

[0005] In view of the above, an inclined demolding linkage structure and an air conditioner drain nozzle mold are proposed, which can solve the problem of demolding difficulties caused by inclined parting, ensure smooth demolding, and thus improve the production quality of plastic parts. Summary of the Invention

[0007] The purpose of this invention is to overcome at least one deficiency in the prior art and provide an inclined demolding linkage structure and an air conditioner drain nozzle mold, thereby solving the problem of demolding difficulties caused by inclined parting, ensuring smooth demolding, and thus improving the production quality of plastic parts.

[0008] The objective of this invention is achieved through the following technical solution: An oblique demolding linkage structure includes: A moving mold forming part, the moving mold forming part including a moving mold forming core, an inclined forming block and an inclined guide block; A movable mold frame, comprising a support plate and a movable mold template, wherein an inclined guide block is disposed on the support plate, a movable mold forming core is disposed on the movable mold template, an inclined forming block is movably inserted through the movable mold forming core, and the forming end of the inclined forming block faces the plastic part, and the abutting end of the inclined forming block abuts against the inclined guide block; and A demolding linkage assembly is disposed on the moving mold frame. The demolding linkage assembly includes an ejection demolding mechanism and a template clutch drive mechanism. When the ejection demolding mechanism ejects and demolds, the ejection demolding mechanism is linked with the template clutch drive mechanism, and drives the moving mold template to move away from the support plate to a preset distance and then reset, so that the inclined molding block moves along the inclined guide block and separates from the plastic part.

[0009] In one embodiment, the template clutch drive mechanism includes a template separation linkage block, a template separation release block, and a template separation drive component. One end of the template separation linkage block is disposed on the ejection and demolding mechanism, and the template separation drive component is disposed on the moving mold template. The other end of the template separation linkage block abuts against the template separation drive component. When the ejection and demolding mechanism ejects and demolds, it drives the template separation linkage block to lift the template separation drive component, so that the moving mold template moves away from the support plate to a preset distance. The template separation release block is disposed on the support plate. After the template separation drive component moves to the preset distance and contacts the template separation release block, the template separation drive component releases its abutment against the template separation linkage block, so that the moving mold template resets.

[0010] In one embodiment, the template separation drive includes a wedge-shaped drive block and a reset spring. The reset spring is disposed between the wedge-shaped drive block and the moving template, and the wedge-shaped drive block protrudes relative to the side wall of the moving template so that the bottom of the wedge-shaped drive block abuts against the template separation linkage block.

[0011] In one embodiment, the wedge-shaped drive block has a first inclined surface on the side away from the template separation linkage block, and the template separation release block also has a second inclined surface. During the ejection and demolding process of the ejection and demolding mechanism, the first inclined surface contacts the second inclined surface, and the template separation release block is used to push the protruding wedge-shaped drive block toward the direction of the reset spring, so as to release the wedge-shaped drive block from the template separation linkage block.

[0012] In one embodiment, the inclined guide block is provided with an inclined guide groove, which gradually slopes outward from the moving mold to the fixed mold, and limit hooks are provided on both sides of the inclined guide groove. The inclined forming block is also provided with a limit groove, the abutting end of the inclined forming block is located in the inclined guide groove, and the limit hook is located in the limit groove.

[0013] In one embodiment, the support plate is provided with a positioning protrusion, and the moving mold template is provided with a positioning groove. When the support plate and the moving mold template abut against each other, the positioning protrusion and the positioning groove are engaged.

[0014] In one embodiment, the ejection and demolding mechanism includes an ejector and an ejector pin. The ejector is disposed on the side of the support plate away from the moving mold template. One end of the ejector pin is connected to the ejector, and the other end of the ejector pin passes through the support plate, the moving mold template, and the moving mold forming core and abuts against the plastic part.

[0015] An air conditioner drain nozzle mold includes the aforementioned inclined demolding linkage structure, and also includes a fixed mold frame, a connecting pipe side core pulling mechanism, two oppositely arranged outer surface sliding forming mechanisms, and an installation cavity forming insert. The connecting pipe lateral core-pulling mechanism and the two outer surface sliding forming mechanisms are disposed between the fixed mold frame and the moving mold frame; the mounting end of the mounting cavity forming insert is fixed to the support plate, and the forming end of the mounting cavity forming insert extends through the moving mold template and the moving mold forming core to the forming cavity of the plastic part; When the fixed mold frame and the moving mold frame are in the closed mold state, the forming surface of the moving mold forming core, the forming end of the inclined forming block, the forming end of the connecting pipe side core pulling mechanism, the forming end of the mounting cavity forming insert, and the forming surfaces of the two external sliding forming mechanisms together form a forming cavity for forming an air conditioner drain nozzle; when the fixed mold frame and the moving mold frame are in the open mold state, the forming end of the connecting pipe side core pulling mechanism and the forming surfaces of the two external sliding forming mechanisms move away from the air conditioner drain nozzle, and the demolding linkage component is used to drive the air conditioner drain nozzle to move away from the mounting cavity forming insert. The demolding linkage component is also used to drive the separation and engagement of the support plate and the moving mold template, so that the air conditioner drain nozzle separates from the inclined forming block and the moving mold forming core respectively.

[0016] In one embodiment, both of the outer surface sliding forming mechanisms include an outer surface sliding forming block and an inclined guide rod. One end of the inclined guide rod is mounted on the fixed mold frame, and the inclined guide rod slides obliquely through the outer surface sliding forming block. When the fixed mold frame and the moving mold frame are in the mold-opening state, the fixed mold frame drives the inclined guide rod to move away from the moving mold frame, so that the outer surface sliding forming block moves along the inclined guide rod away from the forming cavity.

[0017] In one embodiment, the moving mold template has a clearance groove, the outer sliding forming block is located on the clearance groove, the moving mold template is also provided with a limiting guide block, the limiting guide block and the bottom surface of the clearance groove form a guide groove, and the outer sliding forming block is provided with sliding protrusions on both sides, the sliding protrusions being located in the guide groove.

[0018] Compared with the prior art, the present invention has at least the following advantages: 1. The inclined demolding linkage structure of the present invention, by setting an ejection demolding mechanism and a template clutch drive mechanism, enables the mechanical linkage between the ejection demolding mechanism and the moving mold frame through the template clutch drive mechanism to achieve inclined demolding of the inclined forming block. It eliminates the need for external drives such as cylinders, simplifies the mold structure, and reduces equipment costs and control difficulty. In addition, by constraining the trajectory of the inclined forming block through the inclined guide block, and in conjunction with the motion difference generated by the separation of the template, the inclined forming block can be cleverly demolded, avoiding tearing during the demolding of irregularly shaped clips. In this way, the problem of demolding difficulty caused by inclined parting can be solved, ensuring smooth demolding and thus improving the production quality of plastic parts. 2. The air conditioner drain nozzle mold of the present invention has a separate structure formed by integrating an inclined demolding linkage structure, a connecting pipe side core pulling mechanism, and two outer surface sliding forming mechanisms. With the help of an ejection demolding mechanism and a template clutch drive mechanism, it cleverly solves the demolding problem of the air conditioner drain nozzle consisting of "bent connecting pipe + irregular buckle + umbrella-shaped installation cavity" in one go without adding an additional drive source. No secondary processing is required, which improves production efficiency. Moreover, the demolding actions are smooth and continuous without interference, thereby ensuring the production quality of the air conditioner drain nozzle. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly described below.

[0021] Figure 1 This is a schematic diagram of a non-circular air conditioner drain nozzle with a slanted parting line; Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure; Figure 3 This is a schematic diagram of the structure of an air conditioner drain nozzle mold according to an embodiment of the present invention; Figure 4 for Figure 3 A cross-sectional view of the air conditioner drain nozzle mold. Figure 5 for Figure 4 A magnified structural diagram of point A in the diagram; Figure 6 for Figure 4 A magnified structural diagram of section B in the diagram; Figure 7 for Figure 3 A cross-sectional view of another location of the air conditioner drain nozzle mold; Figure 8 for Figure 3 A cross-sectional view of another location of the air conditioner drain nozzle mold; Figure 9 for Figure 3 A schematic diagram of the structure of the fixed mold frame for removing the air conditioner drain nozzle mold; Figure 10 for Figure 3 A structural diagram of the fixed mold frame and moving mold frame for removing the air conditioner drain nozzle mold; Figure 11 for Figure 3 A structural diagram of the fixed mold frame, moving mold frame, and demolding linkage assembly for removing the air conditioner drain nozzle mold; Detailed Implementation

[0022] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be given below with reference to the accompanying drawings.

[0023] Please see Figure 1 and Figure 2 As shown, the air conditioner drain nozzle 20 has an umbrella-shaped mounting body 21 and a bent connecting pipe 22. The umbrella-shaped mounting body has an umbrella-shaped mounting cavity 24 and is equipped with a special-shaped buckle 23 (the buckle hole and buckle block on the side wall need to achieve oblique forming and demolding). The bent connecting pipe and the special-shaped buckle 23 are the core structures that hinder the demolding of plastic parts. If the design is not good, it will not only lead to poor demolding of plastic parts, but also damage to plastic parts and reduce the production quality of plastic parts.

[0024] Please see Figures 3-11As shown, the forming and demolding of the irregularly shaped buckle 23 are first explained. In this invention, an inclined demolding linkage structure is used to solve the problem of difficult demolding of the irregularly shaped buckle 23. The traditional method usually involves setting an inclined core-pulling cylinder, but this not only results in a large overall mold, but also requires strict control over the start-up time of the inclined core-pulling cylinder. If the start-up time is off, it may cause the demolding and core-pulling actions to be inconsistent, resulting in damage to the plastic part. Therefore, the inclined demolding linkage structure of this invention is proposed. Without adding an additional drive source, it uses the mold's own ejection and demolding mechanism and mold frame to achieve inclined forming and demolding of the irregularly shaped buckle. It should also be noted that the application scope of the inclined demolding linkage structure in this invention is not limited to the air conditioner drain nozzle mentioned in this invention, but can also be other plastic parts that require inclined demolding and core-pulling.

[0025] The following is an explanation of the inclined demolding linkage structure: The inclined demolding linkage structure includes a moving mold forming component 100, a moving mold frame 200, and a demolding linkage assembly 300. The moving mold forming component 100 includes a moving mold forming core 100, an inclined forming block 120, and an inclined guide block 130. The moving mold frame 200 includes a support plate 210 and a moving mold template 220. The inclined guide block 130 is disposed on the support plate 210, the moving mold forming core 100 is disposed on the moving mold template 220, and the inclined forming block 120 is movably inserted through the moving mold forming core 100, with the forming end of the inclined forming block 120 facing the plastic. The inclined molding block 120 abuts against the inclined guide block 130. The demolding linkage assembly 300 is disposed on the moving mold frame 200. The demolding linkage assembly 300 includes an ejection demolding mechanism 310 and a template clutch drive mechanism 320. When the ejection demolding mechanism 310 ejects and demolds, the ejection demolding mechanism 310 and the template clutch drive mechanism 320 are linked together, and the moving mold template 220 is moved away from the support plate 210 to a preset distance and then reset, so that the inclined molding block 120 moves along the inclined guide block 130 and separates from the plastic part. It should be noted that the plastic part of this invention takes an air conditioner drain nozzle as an example. After the fixed mold and the moving mold open, the air conditioner drain nozzle stays on the moving mold side. Then, the ejection and demolding mechanism 310 is activated. While the ejection and demolding mechanism 310 ejects and demolds the air conditioner drain nozzle, it is linked with the template clutch drive mechanism 320, which drives the moving mold template 220 to move away from the support plate 210. While the moving mold template 220 moves, the moving mold forming core 100, the inclined forming block 120, and the air conditioner drain nozzle also move accordingly. The inclined forming block 120 moves obliquely upward along the inclined guide block 130. The air conditioner drain nozzle only moves upwards, causing the inclined molding block 120 to separate from the irregularly shaped buckle 23 on the air conditioner drain nozzle. After the moving mold platen 220 moves to a preset distance, it is also released from the linkage with the ejection demolding mechanism 310 through the platen clutch drive structure, so that the moving mold platen 220 no longer moves with the ejection demolding mechanism 310. Then the ejection demolding mechanism 310 can continue to operate until the air conditioner drain nozzle separates from the moving mold molding core 100. In this way, the inclined core pulling demolding of the plastic part can be achieved. In this invention, the inclined demolding linkage structure does not rely on any external driving source (such as a cylinder or other driving source to achieve inclined core pulling), but uses the mold frame and the ejection demolding mechanism 310 existing in the mold itself in conjunction with the platen clutch drive mechanism 320 to achieve a clever linkage. This not only simplifies the mold structure, but also makes each core pulling demolding action more coherent and compact, ensuring the quality of the product after demolding.

[0026] To provide a more detailed explanation, the overall structure of the air conditioner drain nozzle mold is described below. Please combine Figures 1-11As shown, an air conditioner drain nozzle mold includes an inclined demolding linkage structure, a fixed mold frame 400, a connecting pipe side core-pulling mechanism 500, two oppositely arranged surface sliding forming mechanisms 600, and a mounting cavity forming insert 700. The connecting pipe side core-pulling mechanism 500 and the two surface sliding forming mechanisms 600 are disposed between the fixed mold frame 400 and the moving mold frame 200. The mounting end of the mounting cavity forming insert 700 is fixed to the support plate 210, and the forming end of the mounting cavity forming insert 700 extends through the moving mold template 220 and the moving mold forming core 100 to the molding cavity of the plastic part. When the fixed mold frame 400 and the moving mold frame 200 are in the mold-closed state, the forming surface of the moving mold forming core 100 and the forming surface of the inclined forming block 120 are... The molding end, the molding end of the connecting pipe side core-pulling mechanism 500, the molding end of the mounting cavity molding insert 700, and the molding surfaces of the two external sliding molding mechanisms 600 together form a molding cavity for molding an air conditioner drain nozzle. When the fixed mold frame 400 and the moving mold frame 200 are in the mold-opening state, the molding end of the connecting pipe side core-pulling mechanism 500 and the molding surfaces of the two external sliding molding mechanisms 600 move away from the air conditioner drain nozzle. The demolding linkage component 300 is used to drive the air conditioner drain nozzle to move away from the mounting cavity molding insert 700. The demolding linkage component 300 is also used to drive the disengagement of the support plate 210 and the moving mold template 220 so that the air conditioner drain nozzle is separated from the inclined molding block 120 and the moving mold molding core 100, respectively.

[0027] It should be noted that the mold is connected to the injection molding machine. The fixed mold frame 400 is installed on the injection end of the injection molding machine, and the moving mold frame 200 is installed on the drive end of the injection molding machine. Correspondingly, the mold's gating system is also set on the fixed mold frame 400. The injection molding machine injects molten plastic into the molding cavity through the gating system, and holds pressure and cools to form an air conditioner drain nozzle. After molding, the top outer surface of the air conditioner drain nozzle is completely covered by the outer surface sliding molding mechanism 600, especially the connecting pipe. The outer surface sliding molding mechanism 600 corresponds to the conventional one-piece fixed mold forming core. However, the bent connecting pipe will hinder the smooth demolding of the one-piece fixed mold forming core. Therefore, in this invention, a separate outer surface sliding molding mechanism 600 is cleverly used in conjunction with a side core pulling mechanism to achieve demolding. Specifically, after entering the mold opening and demolding stage, the injection molding machine drives the moving mold frame 200 to separate from the fixed mold frame 400, causing the connecting pipe side core-pulling mechanism 500 and the two outer surface sliding forming mechanisms 600 to move away from the air conditioner drain nozzle. The air conditioner drain nozzle remains on the moving mold side. Then, the ejection demolding mechanism 310 is activated and linked with the template clutch drive mechanism 320 to separate the support plate 210 from the moving mold template 220. At this time, since the mounting cavity forming insert 700 is fixed on the support plate 210, the air conditioner drain nozzle will separate from the mounting cavity forming insert 700 and demold. As the moving mold template 220 moves away from the moving mold, the air conditioner drain nozzle will be demolded. As the support plate 210 moves in one direction, it also drives the inclined forming block 120 to slide along the inclined guide block 130. At this time, the inclined forming block 120 moves obliquely upward, while the air conditioner drain nozzle only moves upward. This allows the inclined forming block 120 to separate from the irregular buckle 23 on the air conditioner drain nozzle and demold. Finally, the template clutch drive mechanism 320 releases the ejection demolding mechanism 310 to continue to lift the moving mold template 220, while the ejection demolding mechanism 310 continues to eject until the air conditioner drain nozzle is completely separated from the moving mold forming core 100, thus achieving smooth demolding of the air conditioner drain nozzle. Thus, this invention provides a customized design for the irregular structure of air conditioner drain nozzles, integrating a template clutch to achieve oblique demolding, top and bottom demolding, side core pulling, and a separate mold opening structure. This solves the problem that a single demolding mechanism cannot adapt to complex plastic parts, and at the same time, it achieves smooth demolding without the need for an external drive source, simplifying the overall structure and cost of the mold. In addition, it enables the air conditioner drain nozzle to be injection molded in one step without the need for subsequent secondary processing, improving production efficiency. The demolding sequence is smooth and continuous, avoiding scratches or deformation of plastic parts and ensuring the production quality of plastic parts.

[0028] The following describes the template clutch drive mechanism 320: In one implementation method, please refer to Figure 4 and Figure 5As shown, the template clutch drive mechanism 320 includes a template separation linkage block 321, a template separation release block 322, and a template separation drive component 323. One end of the template separation linkage block 321 is disposed on the ejection demolding mechanism 310, and the template separation drive component 323 is disposed on the moving mold template 220. The other end of the template separation linkage block 321 abuts against the template separation drive component 323. When the ejection demolding mechanism 310 ejects and demolds, it drives the template separation linkage block 321 to lift the template separation drive component 323, so that the moving mold template 220 moves away from the support plate 210 to a preset distance. The template separation release block 322 is disposed on the support plate 210. After the template separation drive component 323 moves to the preset distance and contacts the template separation release block 322, the template separation drive component 323 releases its abutment against the template separation linkage block 321, so that the moving mold template 220 resets.

[0029] It should be noted that when the ejection and demolding mechanism 310 ejects, it drives the template separation linkage block 321 to move synchronously. The template separation linkage block 321 lifts the template separation drive component 323 set on the moving mold template 220, forcing the moving mold template 220 to move away from the support plate 210. When the moving mold template 220 moves to a preset distance (this distance is generally selected according to the actual plastic part's external dimensions, but it is necessary to ensure that the plastic part is completely separated from the inclined forming block 120 without affecting the continued smooth demolding of the plastic part), at this time, the template separation release block... The template separation drive 322 contacts the template separation release block 323, and through structural interference, the template separation release block 322 releases the template separation drive 323 from the template separation linkage block 321. Normally, after the template separation linkage block 321 releases the template separation drive 323, the moving template 220 does not immediately reset. Instead, the moving template 220 stops moving with the ejection and demolding mechanism 310 to facilitate subsequent demolding. Finally, the moving template 220 can reset by the closing of the fixed mold frame 400 and the moving mold frame 200. In this way, the mechanical structure cleverly achieves the movement of each component, ensuring smooth linkage demolding and reducing the probability of failure.

[0030] Further, please refer to Figure 5As shown, the template separation drive component 323 includes a wedge-shaped drive block 323a and a reset spring 323b. The reset spring 323b is disposed between the wedge-shaped drive block 323a and the moving mold template 220, and the wedge-shaped drive block 323a protrudes relative to the side wall of the moving mold template 220 so that the bottom of the wedge-shaped drive block 323a abuts against the template separation linkage block 321. Thus, when the ejection and demolding mechanism 310 performs its ejection action, the wedge-shaped drive block 323a is lifted by the template separation linkage block 321, causing the moving mold template 220 to move with the ejection and demolding mechanism 310. When the wedge-shaped drive block 323a contacts the template separation release block 322, the template separation release block 322 pushes the portion of the wedge-shaped drive block 323a protruding relative to the side wall of the moving mold template 220 back into the interior of the moving mold template 220, so that the wedge-shaped drive block 323a no longer resists the template separation linkage block 321. Therefore, the moving mold template 220 no longer moves with the ejection and demolding mechanism 310. After the moving mold template 220 is reset, the wedge-shaped drive block 323a is reset by the reset spring 323b. In this way, the overall mold structure is compact, eliminating the need for an additional reset drive device and simplifying the mold layout.

[0031] Further, please refer to Figure 5 As shown, the wedge-shaped drive block 323a has a first inclined surface 323a1 on the side away from the template separation linkage block 321, and the template separation release block 322 also has a second inclined surface 322a. During the ejection and demolding process of the ejection and demolding mechanism, the first inclined surface 323a1 contacts the second inclined surface 322a, and the template separation release block 322 is used to push the protruding wedge-shaped drive block 323a towards the return spring 323b, so that the wedge-shaped drive block 323a releases its abutment from the template separation linkage block 321. When the two inclined surfaces are pressed together, a lateral force is generated towards the return spring 323b, forcing the wedge-shaped drive block 323a to compress the return spring 323b and move inward, ultimately releasing its abutment from the template separation linkage block 321. The angle of the inclined surfaces can be designed according to the demolding stroke to adapt to the needs of different separation distances and improve the versatility of the structure. In this embodiment, two template clutch drive mechanisms 320 are provided, and the two template clutch drive mechanisms 320 are symmetrically arranged on both sides of the mold to ensure the stability of the movement of the moving template 220.

[0032] In one implementation method, please refer to Figure 11As shown, the inclined guide block 130 is provided with an inclined guide groove 131. The inclined guide groove 131 gradually tilts outward from the direction of the moving mold to the fixed mold. Limiting hook blocks 132 are provided on both sides of the inclined guide groove 131. The inclined forming block 120 is also provided with a limiting groove 121. The abutting end of the inclined forming block 120 is located in the inclined guide groove 131, and the limiting hook block 132 is located in the limiting groove 121. When the moving mold plate 220 moves away from the support plate 210, the inclined forming block 120 is constrained by the inclined guide groove 131 and slides along the inclined direction. The limiting hooks 132 on both sides of the inclined guide groove 131 engage with the limiting grooves 121 of the inclined forming block 120 to prevent the inclined forming block 120 from disengaging from the inclined guide groove 131 when sliding. This ensures the stability of the movement of the inclined forming block 120 and avoids the inclined forming block 120 from being scratched and damaged by the air conditioner drain nozzle due to positional deviation during the movement.

[0033] In one implementation method, please refer to Figure 8 As shown, the support plate 210 is provided with a positioning protrusion 211, and the moving mold template 220 is provided with a positioning groove 221. When the support plate 210 and the moving mold template 220 abut against each other, the positioning protrusion 211 and the positioning groove 221 are engaged. In the mold-closed state, the positioning protrusion 211 on the support plate 210 and the positioning groove 221 on the moving mold template 220 are engaged to achieve precise positioning of the two. After the moving mold template 220 is separated from the support plate 210, they are re-engaged during reset to ensure that the relative positions of the moving mold template 220 and the support plate 210 are consistent after each mold closing, avoiding misalignment and reducing the product quality of the plastic parts.

[0034] In one implementation method, please refer to Figure 4 , Figure 7 and Figure 10 The ejection and demolding mechanism 310 includes an ejector 311 and an ejector pin 312. The ejector 311 is located on the side of the support plate 210 away from the moving mold template 220. One end of the ejector pin 312 is connected to the ejector 311, and the other end of the ejector pin 312 passes through the support plate 210, the moving mold template 220 and the moving mold forming core 100 and abuts against the plastic part.

[0035] It should be noted that the ejector 311 includes an ejector plate and a fixing plate. The ejector pin 312 is mounted on the ejector plate and locked in place by the fixing plate and screws or bolts. The moving mold base 200 also includes a moving mold base plate 230. A first guide post 240 is installed between the moving mold base plate 230 and the support plate 210. The first guide post 240 passes through the ejector plate and the fixing plate so that the driving end of the injection molding machine drives the ejector plate and the fixing plate to move along the first guide post 240, thereby ensuring the stability of the movement and preventing the ejector pin 312 from deviating and causing obvious ejector pin step indentations on the air conditioner drain nozzle. In addition, a buffer pad 250 is provided on the side of the ejector plate facing the support plate 210, and a buffer pad 250 is also provided on the side of the fixing plate facing the moving mold base plate 230. The buffer pad 250 can not only limit the movement, but also prevent damage and vibration caused by collision.

[0036] The following is a detailed description of the surface sliding forming mechanism 600: In one implementation method, please refer to Figure 7 , Figure 9 and Figure 10 As shown, both outer surface sliding forming mechanisms 600 include an outer surface sliding forming block 610 and an inclined guide rod 620. One end of the inclined guide rod 620 is mounted on the fixed mold frame 400, and the inclined guide rod 620 slides obliquely through the outer surface sliding forming block 610. When the fixed mold frame 400 and the moving mold frame 200 are in the mold-opening state, the fixed mold frame 400 drives the inclined guide rod 620 to move away from the moving mold frame 200, so that the outer surface sliding forming block 610 moves away from the forming cavity along the inclined guide rod 620. Thus, the fixed mold base 400 drives the inclined guide rod 620 to move away from the moving mold base 200. The inclined guide rod 620 and the outer surface sliding molding block 610 cooperate obliquely to convert the linear mold opening force into the lateral sliding force of the outer surface sliding molding block 610, so that the outer surface sliding molding block 610 separates from the surface of the air conditioner drain nozzle. In this way, by using the driving force of the injection molding machine to open and close the mold, there is no need to set up an additional driving device, thereby simplifying the mold structure. At the same time, the inclined guide rod 620 provides precise guidance and the movement trajectory of the outer surface sliding molding block is stable, thereby ensuring the molding accuracy of the plastic part surface.

[0037] Furthermore, the moving mold template 220 has a clearance groove, and the outer sliding forming block 610 is located on the clearance groove. The moving mold template 220 is also provided with a limiting guide block 222, which forms a guide groove with the bottom surface of the clearance groove. Sliding protrusions are provided on both sides of the outer sliding forming block 610, and the sliding protrusions are located in the guide groove. Through the cooperation of the guide groove and the sliding protrusions, the outer sliding forming block 610 plays a guiding and limiting role, preventing positional deviation during sliding.

[0038] To further improve the service life of the mold, please refer to [link / reference needed]. Figure 7 As shown, a wear-resistant block 224 is provided at the position where the moving mold template 220 contacts the outer sliding forming block 610. Correspondingly, a wear-resistant block 224 is also provided in the area where the outer sliding forming block 610 slides relative to the fixed mold frame.

[0039] The following is an explanation of the lateral core-pulling mechanism 500 for the connecting pipe: In one implementation method, please refer to Figure 4 and Figure 11 As shown, the connecting pipe lateral core-pulling mechanism 500 includes a core-pulling inclined guide rod 510, a sliding seat 520, and a forming rod 530. One end of the core-pulling inclined guide rod 510 is mounted on the fixed mold frame, the sliding seat 520 is disposed on the moving mold template 220, and the forming rod 530 is mounted on the side of the sliding seat 520 facing the forming cavity. The forming rod 530 is used for the forming operation of the connecting pipe. The core-pulling inclined guide rod 510 slides through the sliding seat 520. When the fixed mold frame 400 and the moving mold frame 200 are in the mold-opening state, the sliding seat 520 and the forming rod 530 follow the moving mold frame 200 along the core-pulling inclined guide rod 510 and move away from the air conditioner drain nozzle 20, thereby causing the forming rod 530 to be pulled out from the connecting pipe of the air conditioner drain nozzle 20.

[0040] Further, please refer to Figure 7 and Figure 11 As shown, in order to ensure the stability of the movement of the sliding seat 520, a guide limiting block 225 is provided on the moving mold template 220 for guiding and limiting the sliding seat 520; in addition, there is also a limiting protrusion 226 on the moving mold template 220, which limits the movement stroke of the sliding seat 520.

[0041] Furthermore, since the bent connecting tube and the umbrella-shaped mounting cavity are connected, that is, the forming rod 530 and the mounting cavity forming insert 700 are spliced ​​together, please refer to [link / reference needed]. Figure 6 As shown, in order to ensure accurate alignment at the splice joint, an alignment protrusion 531 is provided on the forming rod 530, and an alignment groove 710 is provided on the mounting cavity forming insert 700. The alignment protrusion 531 and the alignment groove 710 are engaged.

[0042] In addition, in one embodiment, in order to ensure rapid cooling and shaping of the plastic part, cooling water channels are provided on the mounting cavity molding insert 700, the outer surface sliding molding block 610, the moving mold template 220, and the moving mold molding core 100.

[0043] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A slanted demolding linkage structure, characterized in that, include: A moving mold forming part, the moving mold forming part including a moving mold forming core, an inclined forming block and an inclined guide block; A movable mold frame, comprising a support plate and a movable mold template, wherein an inclined guide block is disposed on the support plate, a movable mold forming core is disposed on the movable mold template, an inclined forming block is movably inserted through the movable mold forming core, and the forming end of the inclined forming block faces the plastic part, and the abutting end of the inclined forming block abuts against the inclined guide block; and A demolding linkage assembly is disposed on the moving mold frame. The demolding linkage assembly includes an ejection demolding mechanism and a template clutch drive mechanism. When the ejection demolding mechanism ejects and demolds, the ejection demolding mechanism is linked with the template clutch drive mechanism, and drives the moving mold template to move away from the support plate to a preset distance and then reset, so that the inclined molding block moves along the inclined guide block and separates from the plastic part.

2. The inclined demolding linkage structure according to claim 1, characterized in that, The template separation drive mechanism includes a template separation linkage block, a template separation release block, and a template separation drive component. One end of the template separation linkage block is disposed on the ejection and demolding mechanism, and the template separation drive component is disposed on the moving template. The other end of the template separation linkage block abuts against the template separation drive component. When the ejection and demolding mechanism ejects and demolds, it drives the template separation linkage block to lift the template separation drive component, so that the moving template moves away from the support plate to a preset distance. The template separation release block is disposed on the support plate. After the template separation drive component moves to the preset distance and contacts the template separation release block, the template separation drive component releases its abutment against the template separation linkage block, so that the moving template returns to its original position.

3. The inclined demolding linkage structure according to claim 2, characterized in that, The template separation drive component includes a wedge-shaped drive block and a reset spring. The reset spring is disposed between the wedge-shaped drive block and the moving template, and the wedge-shaped drive block protrudes relative to the side wall of the moving template so that the bottom of the wedge-shaped drive block abuts against the template separation linkage block.

4. The inclined demolding linkage structure according to claim 3, characterized in that, The wedge-shaped drive block has a first inclined surface on the side away from the template separation linkage block, and the template separation release block also has a second inclined surface. During the ejection and demolding process of the ejection and demolding mechanism, the first inclined surface contacts the second inclined surface, and the template separation release block is used to push the protruding wedge-shaped drive block toward the direction of the reset spring so that the wedge-shaped drive block and the template separation linkage block are released from their abutment.

5. The inclined demolding linkage structure according to claim 1, characterized in that, An inclined guide groove is provided on the inclined guide block. The inclined guide groove gradually slopes outward from the moving mold to the fixed mold. Limiting hooks are provided on both sides of the inclined guide groove. A limiting groove is also provided on the inclined forming block. The abutting end of the inclined forming block is located in the inclined guide groove, and the limiting hook is located in the limiting groove.

6. The inclined demolding linkage structure according to claim 1, characterized in that, The support plate is provided with a positioning protrusion, and the moving mold template is provided with a positioning groove. When the support plate and the moving mold template abut against each other, the positioning protrusion and the positioning groove are engaged.

7. The inclined demolding linkage structure according to claim 1, characterized in that, The ejection and demolding mechanism includes an ejector and an ejector pin. The ejector is disposed on the side of the support plate away from the moving mold plate. One end of the ejector pin is connected to the ejector, and the other end of the ejector pin passes through the support plate, the moving mold plate and the moving mold forming core and abuts against the plastic part.

8. An air conditioner drain nozzle mold, characterized in that, Including the inclined demolding linkage structure as described in any one of claims 1-7, it further includes a fixed mold frame, a connecting pipe side core pulling mechanism, two oppositely arranged outer surface sliding forming mechanisms, and a mounting cavity forming insert; The connecting pipe lateral core-pulling mechanism and the two outer surface sliding forming mechanisms are disposed between the fixed mold frame and the moving mold frame; the mounting end of the mounting cavity forming insert is fixed to the support plate, and the forming end of the mounting cavity forming insert extends through the moving mold template and the moving mold forming core to the forming cavity of the plastic part; When the fixed mold frame and the moving mold frame are in the closed mold state, the forming surface of the moving mold forming core, the forming end of the inclined forming block, the forming end of the connecting pipe side core pulling mechanism, the forming end of the mounting cavity forming insert, and the forming surfaces of the two external sliding forming mechanisms together form a forming cavity for forming an air conditioner drain nozzle; when the fixed mold frame and the moving mold frame are in the open mold state, the forming end of the connecting pipe side core pulling mechanism and the forming surfaces of the two external sliding forming mechanisms move away from the air conditioner drain nozzle, and the demolding linkage component is used to drive the air conditioner drain nozzle to move away from the mounting cavity forming insert. The demolding linkage component is also used to drive the separation and engagement of the support plate and the moving mold template, so that the air conditioner drain nozzle separates from the inclined forming block and the moving mold forming core respectively.

9. The air conditioner drain nozzle mold according to claim 8, characterized in that, Both of the aforementioned outer surface sliding forming mechanisms include an outer surface sliding forming block and an inclined guide rod. One end of the inclined guide rod is mounted on the fixed mold frame, and the inclined guide rod slides obliquely through the outer surface sliding forming block. When the fixed mold frame and the moving mold frame are in the mold-opening state, the fixed mold frame drives the inclined guide rod to move away from the moving mold frame, so that the outer surface sliding forming block moves along the inclined guide rod away from the forming cavity.

10. The air conditioner drain nozzle mold according to claim 9, characterized in that, The moving mold template has a clearance groove, the outer sliding forming block is located on the clearance groove, the moving mold template is also provided with a limit guide block, the limit guide block and the bottom surface of the clearance groove form a guide groove, and the outer sliding forming block is provided with sliding protrusions on both sides, the sliding protrusions are located in the guide groove.

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