Pipeline mold

Abstract

The pipeline mold comprises an upper mold body and a lower mold body, the upper mold body comprises a top plate, an upper mold plate and an upper forming assembly, and the upper forming assembly comprises a first upper mold core and an upper mold core pulling structure; the upper mold core-pulling structure comprises a guide mechanism, a first driving mechanism, a sliding block and a sliding upper mold; the sliding upper die is slidably arranged in the forming sliding groove, the first end of the sliding upper die obliquely extends to the bottom of the first upper die core, and the sliding direction of the sliding upper die is the first direction; the guide mechanism is arranged at the top of the first upper mold core; the sliding block is in sliding fit with the guide mechanism and connected with the sliding upper mold to pull the sliding upper mold to be demolded or closed in the first direction. The first driving mechanism can drive the upper die sliding block to move, the upper die sliding block pulls the sliding upper die to move upwards in an inclined mode, the moving direction is the same as the length direction of a forming structure on the upper portion or the upper surface of a product, interference between an inclined forming structure and the sliding upper die is avoided, the demolding difficulty is lowered, and deformation or scratching of the inclined forming structure is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of mold equipment, in particular to a pipeline mold. Background Art

[0002] The mold is an important production equipment in modern industry and the core equipment of the injection molding process. The mold can repeatedly produce plastic products with complex shapes. Its main structure includes an upper mold and a lower mold. The upper mold includes a top plate 1, an upper mold plate 2, a lower mold plate 4, a lifting plate and a bottom plate 7. For some simple plastic products, the injection molding process usually requires the upper mold core and the lower mold core to undergo mold closing, injection molding, pressure holding cooling, and demolding. For some complex plastic products, some pipeline structures can also be injection molded. Usually, the two parts of the pipeline are molded separately, and then the two parts are connected together by buckling.

[0003] Reasonably dividing the pipe into two half shells can form two half shells at the same time in one mold. After reasonable division, the number of side core pulling structures can be reduced, thereby simplifying the mold structure. For example, the docking interfaces at both ends of the pipe are perpendicular to each other. In this case, the pipe can still be divided into two. However, there are some special-shaped pipes, and one of the docking interfaces is tilted downward, that is, the docking interface faces obliquely downward, and there is a molding structure at the docking interface. Due to the inclination of the docking interface, these molding structures become inclined molding structures, such as lower bevels (lower bevels face obliquely downward), inclined holes, inclined bosses, etc. The extension direction of the inclined molding structure intersects with the demolding direction, which interferes with demolding. Therefore, the inclined molding structure of special-shaped pipes has the problem of difficulty in demolding. Summary of the invention

[0004] In order to solve the technical problem in the prior art that the inclined forming structure of the special-shaped pipe is difficult to demould, one of the objectives of the present invention is to provide a pipe mold.

[0005] One of the purposes of the present invention is achieved by the following technical solution:

[0006] A pipeline mold, the pipeline mold comprises an upper mold and a lower mold, the upper mold comprises a top plate, an upper mold plate and an upper molding assembly, the top plate is arranged above the upper mold plate, and the upper molding assembly is arranged on the upper mold plate;

[0007] A first mold core cavity is provided at the bottom of the upper mold plate, and a core-pulling cavity is provided at the top of the first mold core cavity;

[0008] The upper molding assembly includes a first upper mold core and an upper mold core-pulling structure, the first upper mold core is embedded in the first mold core cavity, a molding slide is provided on the first upper mold core, the molding slide is inclined along a first direction and passes through the first upper mold core up and down, and the upper mold core-pulling structure is provided on the upper mold plate and located in the core-pulling cavity;

[0009] The upper die core pulling structure comprises a guide mechanism, a first driving mechanism, a slider and a sliding upper die;

[0010] The sliding upper die is slidably disposed in the forming slide groove, the first end of the sliding upper die obliquely extends to the bottom of the first upper die core, and the sliding direction of the sliding upper die is a first direction, which is used to form an inclined forming structure;

[0011] The guide mechanism is arranged at the top of the first upper mold core, and is used to guide the slide block to move along the second direction;

[0012] The slider is slidably matched with the guide mechanism, and the slider is connected to the sliding upper mold to pull the sliding upper mold to demold or close the mold along a first direction;

[0013] The first driving mechanism is connected to the slider to drive the slider to move along a second direction.

[0014] Optionally, the sliding block is slidably connected to the sliding upper die.

[0015] Optionally, the second end of the sliding upper die is provided with a first sliding surface, and the first sliding surface is provided with a first anti-slip groove;

[0016] The slider is provided with a second sliding surface, the second sliding surface is provided with a first connecting block, the first connecting block extends into the first anti-slip groove, the part of the first connecting block extending into the first anti-slip groove is slidably matched with the first anti-slip groove, and the second sliding surface is slidably matched with the first sliding surface.

[0017] Optionally, the guide mechanism is provided with a first slide groove, and the opening of the first slide groove faces the forming slide groove;

[0018] The sliding block is slidably disposed in the first sliding groove.

[0019] Optionally, a second anti-slip groove is provided in the first slide groove;

[0020] The slider is provided with a third sliding surface, the third sliding surface is provided with a second connecting block, the second connecting block extends into the second anti-slip groove, the part of the second connecting block extending into the second anti-slip groove is slidably matched with the second anti-slip groove, and the third sliding surface is slidably matched with the first sliding groove.

[0021] Optionally, the guide mechanism comprises a first guide block and two second guide blocks, the two second guide blocks are respectively arranged on both sides of the slider, and the first guide block is arranged on the top of the slider;

[0022] The area between the first guide block and the two second guide blocks is the first sliding groove, and the first guide block and the two second guide blocks are respectively slidably matched with the top and both sides of the sliding block.

[0023] Optionally, a second mold core cavity is further provided at the bottom of the upper mold plate, and the upper molding assembly further includes a second upper mold core, and the second upper mold core is embedded in the second mold core cavity.

[0024] Optionally, the lower mold includes a lower template, a lower molding assembly, a lifting assembly and a base plate, the lifting assembly is arranged below the lower template, the lifting assembly is arranged between the lower template and the lifting assembly, and the lower molding assembly is arranged on the lower template.

[0025] Optionally, the lower mold plate is provided with a third mold core cavity and a fourth mold core cavity;

[0026] The lower molding assembly includes a first lower mold core and a second lower mold core, and the first lower mold core and the second lower mold core are respectively embedded in the third mold core cavity and the fourth mold core cavity.

[0027] Optionally, the lower molding assembly further comprises a power core pulling structure, and the power core pulling structure comprises a sliding side mold, a sliding extension and a second driving mechanism;

[0028] The sliding extension is arranged on the side of the rear template, and a third sliding groove is arranged on the sliding extension, and the third sliding groove is connected to the second sliding groove on the rear template;

[0029] The sliding side mold is slidably arranged in the second sliding groove of the rear mold plate, and is used for forming the side structure of the product;

[0030] The second driving mechanism includes a power element, which is arranged on the side of the rear mold plate and is connected to the sliding side mold to drive the sliding side mold to move.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] The first driving mechanism drives the upper mold slider to move along the second direction, and moves under the guidance of the guide mechanism. The upper mold slider pulls the sliding upper mold to move along the first direction, which includes pulling the sliding upper mold to demold or close the mold. The sliding upper mold is arranged in the molding chute. The upper mold slider pulls the sliding upper mold to move downward along the molding chute, which is the closing of the mold. The upper mold slider pulls the sliding upper mold to move upward along the molding chute, which is the demolding. The first end of the sliding upper mold extends obliquely to the bottom of the upper mold core, and the extension direction and the first direction are the extension direction or length direction of the inclined molding structure. In this way, in the present invention, after the sliding upper mold molds the inclined molding structure of the product, the upper mold slider can be driven to move by the first driving mechanism. The upper mold slider pulls the sliding upper mold to move obliquely upward, and the moving direction is the same as the length direction of the structure molded by the upper part or upper surface of the product, so as to avoid interference between the inclined molding structure and the sliding upper mold, reduce the difficulty of demolding, and avoid deformation or scratches of the inclined molding structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a structural schematic diagram of the pipeline mold of the present invention;

[0034] Figure 2 It is a structural schematic diagram of the upper mold in the pipeline mold of the present invention;

[0035] Figure 3 It is a structural schematic diagram of the lower mold in the pipeline mold of the present invention;

[0036] Figure 4 It is an exploded schematic diagram of the upper mold core-pulling structure and the first upper mold core in the pipeline mold of the present invention;

[0037] Figure 5 It is an exploded schematic diagram of the core-pulling structure of the upper mold in the pipeline mold of the present invention;

[0038] Figure 6 It is a side schematic diagram of the core-pulling structure of the upper mold in the pipeline mold of the present invention;

[0039] Figure 7 It is an exploded schematic diagram of the guide mechanism, the upper die slide block and the sliding upper die in the pipeline die of the present invention;

[0040] Figure 8 It is an exploded schematic diagram of the power core pulling structure and the lower mold plate in the pipeline mold of the present invention;

[0041] Fig. 9 It is a schematic diagram of the side forming core pulling structure of the pipeline mold of the present invention being located at the lower mold plate;

[0042] Fig.10 It is a structural schematic diagram of the side forming core pulling structure of the pipeline mold of the present invention;

[0043] Fig.11It is a schematic diagram of the exploded side forming core pulling structure of the pipe mold of the present invention.

[0044] Description of the accompanying drawings:

[0045] 1. Top plate;

[0046] 2. Put on the template;

[0047] 3. Upper molding assembly; 31. First upper mold core; 311. Molding slide; 32. Upper mold core pulling structure; 321. Guide mechanism; 3211. First guide block; 32111. Second anti-slip groove; 3212. Second guide block; 3213. First slide; 322. First driving mechanism; 323. Upper mold slider; 3231. First connecting block; 3232. Second connecting block; 3233. Connecting groove; 324. Sliding upper mold; 3241. First anti-slip groove; 325. Moving limiting mechanism; 326. Limiting block; 33. Second upper mold core;

[0048] 4. Lower mold plate; 41. Third mold cavity; 42. Fourth mold cavity;

[0049] 5. Lower molding assembly; 51. First lower mold core; 52. Second lower mold core; 53. Power core pulling structure; 531. Sliding side mold; 532. Sliding extension piece; 533. Second driving mechanism; 54. Side molding core pulling structure; 541. First slider; 5411. Sliding groove; 542. Second slider; 5421. Third connecting block; 5422. Driven inclined plane; 5423. Guide hole; 543. Third driving mechanism;

[0050] 6. Lifting components;

[0051] 7. Base plate. DETAILED DESCRIPTION

[0052] The following will be combined with the attached examples of the present application Figure 1 To Attachment Fig.11 , the technical solutions in the embodiments of the present application are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0053] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0054] In addition, the descriptions of "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0055] The present invention provides a pipe mold, which includes an upper mold and a lower mold, which can also be called a front mold and a rear mold. The lower mold molds the lower part or lower surface structure of the product, and the upper mold molds the upper part or upper surface structure of the product. The present invention is used for forming an inclined molding structure on the upper part or upper surface of the product, and the inclined molding structure is inclined downward, specifically manifested as a lower inclined surface (the lower inclined surface faces obliquely downward), an inclined hole, an inclined boss, etc. Figures 1 to 3 As shown, the upper mold includes a top plate 1, an upper mold plate 2 and an upper molding assembly 3, wherein the top plate 1 is arranged above the upper mold plate 2, and the upper molding assembly 3 is arranged on the upper mold plate 2. A first mold core cavity is arranged at the bottom of the upper mold plate 2, and a core-pulling cavity is arranged at the top of the first mold core cavity.

[0056] The upper molding component 3 includes a first upper mold core 31 and an upper mold core pulling structure 32. The first upper mold core 31 is embedded in the first mold core cavity. A molding slide 311 is provided on the first upper mold core 31. The molding slide 311 is inclined along the first direction and passes through the first upper mold core 31 up and down. The upper mold core pulling structure 32 is arranged on the upper mold plate 2 and is located in the core pulling cavity.

[0057] like Figure 4 , Figure 5 As shown, the upper die core pulling structure 32 includes a guide mechanism 321 , a first driving mechanism 322 , an upper die slide block 323 and a sliding upper die 324 .

[0058] The sliding upper mold 324 is slidably set in the molding slide groove 311 of the upper mold core, and the first end of the sliding upper mold 324 extends obliquely to the bottom of the upper mold core. The sliding direction of the sliding upper mold 324 is the first direction, which is used to form an inclined molding structure. The first direction is the extension direction or length direction of the inclined molding structure.

[0059] The guide mechanism 321 is disposed at the top of the upper mold core, and is used to guide the upper mold slider 323 to move along the second direction. The upper mold slider 323 is slidably matched with the guide mechanism 321, and the upper mold slider 323 is connected to the sliding upper mold 324 to pull the sliding upper mold 324 to demold or close the mold along the first direction. The first driving mechanism 322 is connected to the upper mold slider 323 to drive the upper mold slider 323 to move along the second direction.

[0060] In the present invention, the first driving mechanism 322 drives the upper mold slider 323 to move along the second direction, and moves under the guidance of the guide mechanism 321. The upper mold slider 323 pulls the sliding upper mold 324 to move along the first direction, which includes pulling the sliding upper mold 324 to demold or close the mold. The sliding upper mold 324 is arranged in the molding chute 311. The upper mold slider 323 pulls the sliding upper mold 324 to move downward along the molding chute 311, which is the closing of the mold. The upper mold slider 323 pulls the sliding upper mold 324 to move upward along the molding chute 311, which is the demolding. The first end of the sliding upper mold 324 extends obliquely to the bottom of the upper mold core, and the extension direction and the first direction are the extension direction or length direction of the inclined molding structure. Thus, in the present invention, after the sliding upper mold 324 forms the inclined molding structure of the product, the upper mold slider 323 can be driven to move by the first driving mechanism 322, and the upper mold slider 323 pulls the sliding upper mold 324 to move obliquely upward, and the moving direction is the same as the length direction of the structure formed on the upper part or upper surface of the product, thereby avoiding interference between the inclined molding structure and the sliding upper mold 324, reducing the difficulty of demolding, and avoiding deformation or scratches of the inclined molding structure.

[0061] In some embodiments of the connection method between the upper mold slider 323 and the sliding upper mold 324 , the upper mold slider 323 is slidably connected to the sliding upper mold 324 .

[0062] Specifically, if Figure 6 and Figure 7 As shown, the second end of the sliding upper mold 324 is provided with a first sliding surface, and the first sliding surface is provided with a first anti-slip groove 3241. The upper mold slider 323 is provided with a second sliding surface, and the second sliding surface is provided with a first connecting block 3231, the first connecting block 3231 extends into the first anti-slip groove 3241, the part of the first connecting block 3231 extending into the first anti-slip groove 3241 is slidably matched with the first anti-slip groove 3241, and the second sliding surface is slidably matched with the first sliding surface. More specifically, the first anti-slip groove 3241 is a T-shaped groove, and the first connecting block 3231 is a T-shaped block.

[0063] The first sliding surface of the sliding upper mold 324 is provided with a first anti-slip groove 3241 with a T-shaped cross section, and the second sliding surface of the upper mold slider 323 is provided with a first connecting block 3231 with a T-shaped cross section. The first connecting block 3231 is slidably matched with the first anti-slip groove 3241. When the upper mold slider 323 moves, it pulls the sliding upper mold 324 to move. When the sliding upper mold 324 moves along the second direction, it has two sub-movements in two directions, one is a movement parallel to the first direction, and the other is a movement perpendicular to the first direction. If the first direction is the X-axis direction, then the perpendicular first direction is the Z-axis direction. When the upper mold slider 323 pulls the sliding upper mold 324 to move, the sliding upper mold 324 has a movement in the Z-axis direction relative to the upper mold slider 323. The sliding connection between the upper mold slider 323 and the sliding upper mold 324 allows the sliding upper mold 324 to move in the Z-axis direction relative to the upper mold slider 323, thereby ensuring a stable sliding connection between the upper mold slider 323 and the sliding upper mold 324.

[0064] Regarding the connection between the upper mold slider 323 and the sliding upper mold 324, in other embodiments, the upper mold slider 323 and the sliding upper mold 324 can be connected through a hinge structure. Specifically, the two ends of the hinge structure are hinged to the upper mold slider 323 and the sliding upper mold 324 respectively.

[0065] In some embodiments of the guide mechanism 321, such as Figure 6 , Figure 7 As shown, a first slide groove 3213 is provided on the guide mechanism 321 , the opening of the first slide groove 3213 faces the molding slide groove 311 , and the upper mold slider 323 is slidably disposed in the first slide groove 3213 , so that the upper mold slider 323 can move smoothly along the first slide groove 3213 .

[0066] Furthermore, if Figure 6 , Figure 7 As shown, a second anti-slip groove 32111 is provided in the first slide groove 3213. A third sliding surface is provided on the upper mold slider 323, and a second connecting block 3232 is provided on the third sliding surface. The second connecting block 3232 extends into the second anti-slip groove 32111, and the portion of the second connecting block 3232 extending into the second anti-slip groove 32111 is slidably matched with the second anti-slip groove 32111, and the third sliding surface is slidably matched with the first slide groove 3213. Specifically, the second anti-slip groove 32111 is a T-shaped groove, and the second connecting block 3232 is a T-shaped block. The second anti-slip groove 32111 is provided in the first slide groove 3213, and the second anti-slip groove 32111 is provided in parallel with the first slide groove 3213. A second connecting block 3232 is arranged on the third sliding surface of the upper mold slider 323. The second connecting block 3232 extends into the second anti-slip groove 32111. The second connecting block 3232 slides in cooperation with the second anti-slip groove 32111, thereby preventing the upper mold slider 323 from moving and deviating in the first sliding groove 3213, so that the upper mold slider 323 can move along a straight line.

[0067] Of course, in this embodiment, the third sliding surface is preferably provided on the top of the upper mold slider 323, and the first slide groove 3213 of the guide mechanism 321 is provided with the aforementioned second anti-slip groove 32111 on the side opposite to the opening. Since the opening of the first slide groove 3213 faces downward, it can be said that the second anti-slip groove 32111 is provided on the top of the first slide groove 3213.

[0068] The guide mechanism 321 may be an integral structure or may be a combination or assembly of multiple components. In some embodiments of the guide mechanism 321, for example Figure 6 , Figure 7 As shown, the guide mechanism 321 includes a first guide block 3211 and two second guide blocks 3212. The two second guide blocks 3212 are respectively arranged on both sides of the upper die slide block 323, and the first guide block 3211 is arranged on the top of the upper die slide block 323. The area between the first guide block 3211 and the two second guide blocks 3212 is a first slide groove 3213. The first guide block 3211 and the two second guide blocks 3212 are respectively slidably matched with the top and both sides of the upper die slide block 323. The guide mechanism 321 includes three guide blocks, which respectively guide the upper die slide block 323 to move from both sides of the top, so that the upper die slide block 323 moves smoothly and accurately.

[0069] The first guide block 3211 and the two second guide blocks 3212 are assembled into a guide mechanism 321. The first guide block 3211 and the two second guide blocks 3212 can be installed on the upper mold core. Of course, the first guide block 3211 and the two second guide blocks 3212 are assembled into a guide mechanism 321. Specifically, the two sides of the first guide block 3211 are connected to the upper parts of the two second guide blocks 3212 respectively.

[0070] For the upper die slide block 323, the third sliding surface is located at the top of the upper die slide block 323, and the bottom plane of the first guide block 3211 is slidably matched with the third sliding surface. The bottom plane of the first guide block 3211 is provided with the second anti-slip groove 32111.

[0071] Furthermore, the guide mechanism 321 also includes two blocks, which are respectively arranged at both ends of the second anti-slip groove 32111, and the two blocks block the ends of the second anti-slip groove 32111 to prevent the second connecting block 3232 from slipping.

[0072] In addition, in order to limit or control the movement of the upper mold slide 323, as Figure 4 , Figure 6 As shown, the upper die core pulling structure 32 further includes a movable limiting mechanism 325 , which is disposed on the guide mechanism 321 and is used for sensing and limiting the position of the upper die slide block 323 .

[0073] Specifically, the movable limiting mechanism 325 includes a limiting rod and a sensor, wherein the limiting rod is connected to the upper mold slider 323, and the sensor is arranged on the guide mechanism 321 and located on the moving track of the limiting rod, and is used to sense the limiting rod and trigger the first driving mechanism 322 to stop working.

[0074] The limit rod moves with the upper mold slider 323. When the limit rod is close to or in contact with the sensor, it is sensed by the sensor, thereby confirming the position of the upper mold slider 323 and triggering the first drive mechanism 322 to stop driving. For example, during the mold closing and demolding process, after the sensor senses the limit rod, the sensor sends an electrical signal to the processor, and the processor controls the power element in the first drive mechanism 322 to stop outputting power, thereby triggering the first drive mechanism 322 to stop.

[0075] More specifically, the movable limiting mechanism 325 includes a limiting rod, two sensors and a mounting plate. The two sensors are respectively arranged at both ends of the mounting plate, and the mounting plate is mounted on the guide mechanism 321 or the upper mold core. When the mounting plate is mounted on the guide mechanism 321, it is specifically mounted on the second guide block 3212. The two sensors correspond to the demoulding position and the closing position respectively.

[0076] In some embodiments of the upper die core pulling structure 32, as Figure 4 , Figure 5 As shown, the upper mold core pulling structure 32 also includes a limit block 326, which is arranged on the side of the guide mechanism 321 away from the first driving mechanism 322, and is used to limit the moving position of the upper mold slider 323, especially to limit the position of the upper mold slider 323 when the mold is closed, and also to limit the position of the sliding upper mold 324 when molding the product, to ensure the molding accuracy of the aforementioned inclined molding structure.

[0077] In some embodiments of the first driving mechanism 322, such as Figure 6 , Figure 7 As shown, a connection surface is provided on one side of the upper mold slider 323 close to the first driving mechanism 322, and a connection groove 3233 is provided on the connection surface, and the connection groove 3233 is T-shaped. The first driving mechanism 322 includes a power element and a transmission member, the first end of the transmission member is connected to the output end of the power element, the second end of the transmission member is T-shaped, and the second end of the transmission member is deeply inserted into the connection groove 3233 and slidably cooperates with the connection groove 3233. The second end of the transmission member is T-shaped, which can be specifically a T-shaped structure of the second end of the transmission member, or a step or a ring protruding from the outer surface of the second end, which is located in the connection groove 3233 and slidably cooperates with the connection groove 3233 during assembly.

[0078] In addition, for the upper mold slider 323, a third sliding surface is provided on its top, a connecting surface is provided on the side close to the first driving mechanism 322, and a second sliding surface is provided on the side close to the sliding upper mold 324. The second sliding surface is inclined, and its overall shape is wedge-shaped, which is a wedge-shaped upper mold slider 323. The power element drives the upper mold slider 323 to move through the connecting surface, and the second sliding surface is connected to the sliding upper mold 324 to pull the sliding upper mold 324 to move up and down, so as to realize the demoulding and clamping of the sliding upper mold 324.

[0079] For the first connecting block 3231 and the second connecting block 3232 on the upper mold slider 323, the first connecting block 3231 and the second connecting block 3232 can be directly turned on the upper mold slider 323, or can be independently processed and then assembled on the upper mold slider 323 body.

[0080] In some embodiments of the upper mold, a second mold core cavity is further provided at the bottom of the upper mold plate 2, and the upper molding assembly 3 further includes a second upper mold core 33, and the second upper mold core 33 is embedded in the second mold core cavity. The upper mold is provided with a first upper mold core 31 and a second upper mold core 33, and a first mold core cavity and a second mold core cavity are provided at the bottom of the upper mold plate 2. The first upper mold core 31 and the second upper mold core 33 are respectively embedded in the first mold core cavity and the second mold core cavity, so that the upper mold has two upper mold cores, which can simultaneously mold the upper structure of the product, especially can simultaneously mold the two half-shell upper structures of the special-shaped pipe.

[0081] In some embodiments of the lower mold, such as Figure 1 , Figure 3 As shown, the lower mold includes a lower template 4, a lower molding component 5, a lifting component 6 and a base plate 7, the lifting component 6 is arranged below the lower template 4, the lifting component 6 is arranged between the lower template 4 and the lifting component 6, and the lower molding component 5 is arranged on the lower template 4.

[0082] Specifically, the lower mold plate 4 is provided with a third mold core cavity 41 and a fourth mold core cavity 42. The lower molding assembly 5 includes a first lower mold core 51 and a second lower mold core 52, which are respectively embedded in the third mold core cavity 41 and the fourth mold core cavity 42. The lower mold has two lower mold cores, which can simultaneously mold the upper structure of the product, especially the two half-shell lower structures of the special-shaped pipe. The upper mold and the lower mold cooperate to form a molding cavity for molding the pipe after the mold is closed, so as to injection mold the aforementioned special-shaped pipe.

[0083] In some embodiments of the lower molding assembly 5 , the lower molding assembly 5 further includes a plurality of core pulling structures for side molding, including a power core pulling structure 53 and a side molding core pulling structure 54 .

[0084] In some embodiments of the power core pulling structure 53, as Figure 8As shown, the power core pulling structure 53 includes a sliding side mold 531, a sliding extension 532 and a second driving mechanism 533. Specifically, a second slide groove is provided on the lower mold plate 4, a sliding extension 532 is arranged on the side of the lower mold plate 4, and a third slide groove is provided on the sliding extension 532, and the third slide groove is connected to the second slide groove on the lower mold plate 4. The sliding side mold 531 is slidably arranged in the second slide groove of the lower mold plate 4, and is used to form the side structure of the product. The second driving mechanism 533 includes a power element, which is arranged on the side of the lower mold plate 4, and the power element is connected to the sliding side mold 531 to drive the sliding side mold 531 to move. The power core pulling structure 53 of the present invention is provided with a sliding side mold 531, a sliding extension 532 and a second driving mechanism 533, wherein the sliding extension 532 is arranged on the side of the lower mold plate 4, and the third slide groove on the sliding extension 532 is connected to the second slide groove on the lower mold plate 4, thereby extending the sliding channel of the sliding side mold 531 and increasing the moving range of the sliding side mold 531. In addition, in the second driving mechanism 533, the power element is used as the power source of the sliding side mold 531, and it has a longer driving range compared to the inclined wedge and the inclined guide column. Therefore, the sliding side mold 531 has a larger moving range, and the second driving mechanism 533 has a larger driving range, so that the sliding side mold 531 has a larger demoulding distance, which is convenient for the sliding side mold 531 to participate in the molding of a structure with a large lateral molding length.

[0085] For the aforementioned second driving mechanism 533, a T-slot is provided at one end of the sliding side mold 531 close to the second driving mechanism 533, and the extension direction of the T-slot is perpendicular to the moving direction of the sliding side mold 531. The second driving mechanism 533 also includes a T-shaped connecting block, which is arranged at the output end of the power element, and the T-shaped connecting block is slidably arranged in the T-slot. The power element and the sliding side mold 531 are connected by the T-shaped connecting block and the T-slot, and the T-shaped connecting block and the T-slot are slidably matched. The T-slot allows the T-shaped connecting block to produce displacement along the length direction of the T-slot, which has greater assembly fault tolerance.

[0086] For the aforementioned power element, specifically, the power element is an electric push rod or a pneumatic push rod.

[0087] In some embodiments of the sliding extension 532, a bearing protrusion is provided on one side of the sliding extension 532 close to the lower template 4, and the bearing protrusion is embedded in the side of the lower template 4. The side of the lower template 4 is also provided with a connecting hole, and the bearing protrusion can be embedded in the connecting hole during assembly. The bearing protrusion increases the bearing capacity of the sliding extension 532, and the sliding extension 532 can better bear the weight of the sliding extension 532 and the pressure of the sliding side mold 531 in the demolding state.

[0088] Regarding the structure of the sliding extension member 532, specifically, the sliding extension member 532 includes a bearing portion and two limiting portions, and the two limiting portions are arranged on both sides of the bearing portion. The area between the two limiting portions is the area where the third sliding groove is located.

[0089] The side molding core pulling structure 54 is used to mold the inclined side of the injection molded product. The inclined side is tilted downward. Specifically, the side is turned outward at a certain angle. The molding structure is a convex or concave structure located on the side of the product, such as a hole, a boss, a surface, etc. The surface is specifically a surface on a plate or a step that is adjacent to the side. The molding structure is perpendicular to the side, but it may not be perpendicular. The molding structure starts from the side and extends in a certain direction.

[0090] In some embodiments of the side-molding core-pulling structure 54, as Fig. 9 , Fig.10 and Fig.11 As shown, the side forming core pulling structure 54 includes a first slider 541, a second slider 542 and a third driving mechanism 543. Specifically, the first end of the first slider 541 is a forming end, and the first slider 541 is slidably arranged on the second lower mold core 52 to form a forming structure on the side of the product. The first slider 541 slides along a first direction, and the sliding direction is parallel to the extension direction of the forming structure. The second slider 542 is slidably arranged on the lower mold plate 4, and the first end of the second slider 542 is connected to the second end of the first slider 541 to pull the first slider 541 to slide along the first direction. The third driving mechanism 543 is connected to the second slider 542 to drive the second slider 542 to move along the second direction. Specifically, the second direction can be the X-axis direction parallel to the lower mold plate 4.

[0091] In the present invention, the third driving mechanism 543 pulls the second slider 542 to move along the second direction on the lower mold plate 4, and the second slider 542 pulls the first slider 541 to move along the first direction on the second lower mold core 52, wherein the first direction is outward relative to the product, and the outward direction is the extension direction of the molding structure located on the side of the molded product. In this way, when demolding, the second slider 542 can move along the shape of the molding structure to avoid demolding interference between the molding structure and the second slider 542 during demolding, so that the second slider 542 can be demolded smoothly, avoiding scratches on the molded product, or reducing the probability of scratches on the molded product.

[0092] Regarding the connection between the first slider 541 and the second slider 542 , in some embodiments, the first slider 541 and the second slider 542 are slidably connected.

[0093] Specifically, if Fig.11As shown, the second end of the first slider 541 is provided with a first connection surface, and the first connection surface is provided with a sliding groove 5411. The first end of the second slider 542 is provided with a second connection surface, and the second connection surface is provided with a third connection block 5421, the third connection block 5421 extends into the sliding groove 5411, and the portion of the third connection block 5421 extending into the sliding groove 5411 is slidably matched with the sliding groove 5411. More specifically, the sliding groove 5411 is a T-shaped groove, and the third connection block 5421 is a T-shaped block. The first connection surface on the first slider 541 is provided with a sliding groove 5411 with a T-shaped cross section, and the second connection surface of the second slider 542 is provided with a third connection block 5421 with a T-shaped cross section, and the third connection block 5421 is slidably matched with the sliding groove 5411, and the second slider 542 pulls the first slider 541 to move when moving. When the first slider 541 moves along the first direction, it has two sub-movements in two directions, one of which is a movement parallel to the second movement, and the other is a movement perpendicular to the second direction, that is, the Z-axis direction. When the second slider 542 pulls the first slider 541 to move, the first slider 541 moves in the Z-axis direction relative to the second slider 542 . The sliding connection between the first slider 541 and the second slider 542 allows the first slider 541 to move in the Z-axis direction relative to the second slider 542 .

[0094] Regarding the connection between the first slider 541 and the second slider 542 , in other embodiments, the first slider 541 and the second slider 542 may be connected via a hinge structure. Specifically, two ends of the hinge structure hinge the first slider 541 and the second slider 542 , respectively.

[0095] In some driving embodiments of the second slider 542, as Fig.11 As shown, the second slider 542 is provided with a driven inclined surface 5422 and a guide hole 5423. The driven inclined surface 5422 intersects with the second sliding side, and the angle formed is greater than 45 degrees and less than 90 degrees. The axis of the guide hole 5423 is parallel to the driven inclined surface 5422. The third driving mechanism 543 includes an inclined wedge and an inclined guide rod. The inclined wedge is provided with a driving surface adapted to the driven inclined surface 5422, and the driving surface abuts against the driven inclined surface 5422. The inclined guide rod extends into the guide hole 5423 and slides with the guide hole 5423. In this embodiment, the driving structure is an inclined wedge and an inclined guide rod. When demolding, the inclined guide rod moves away from the lower mold plate 4 with the upper mold plate 2, and the inclined guide rod drives the second slider 542 to move away from the second lower mold core 52 along the second direction. The opposite is true when the mold is closed. The inclined wedge has a driving surface, and the second slider 542 has a driven inclined surface 5422. The inclined wedge can also use the driving surface to drive the second slider 542 to move in one direction. For example, the inclined wedge can also use the driving surface to drive the second slider 542 to move toward the second lower mold core 52, that is, drive the second slider 542 to move when the mold is closed. Especially during injection molding, the large area of ​​the inclined wedge presses to maintain stable and strong pressure, avoiding the first slider 541 and the second slider 542 from retreating during injection molding, thereby improving molding accuracy.

[0096] The angle between the driven inclined surface 5422 and the second sliding side can specifically be 45, 50, 55, 60, 65, 70, 75, 80, 85, 90 and other angles between the aforementioned values.

[0097] The wedge drives the second slider 542 to move during mold closing. Specifically, Fig.11 As shown, the bottom of the second slider 542 is a sliding surface, the end surface of the first end of the second slider 542 is provided with a second connecting surface, the first end of the second slider 542 is also provided with a driven inclined surface 5422, the driven inclined surface 5422 is the reverse inclined surface of the second connecting surface, and the upper part of the second end of the second slider 542 is a plane. The second connecting surface is provided with a third connecting block 5421 for connecting with the first slider 541. The guide hole 5423 is provided on the plane of the upper part of the second end of the second slider 542. The driven inclined surface 5422 is the reverse inclined surface of the second connecting surface, and the driving surface is a driving surface that matches the driven inclined surface 5422, and the driving surface abuts against the driven inclined surface 5422, so that the second slider 542 can drive the driven inclined surface 5422 by the driving surface, and the cooperation of the driving surface and the driven inclined surface 5422 can drive the first slider 541 and the second slider 542 to perform the movement related to the mold closing.

[0098] In other embodiments of the third driving mechanism 543 , the third driving mechanism 543 may also be a pneumatic push rod, an electric push rod, etc. The pneumatic push rod or the electric push rod is connected to the second end of the second slider 542 to directly push and pull the second slider 542 .

[0099] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A pipeline mold, characterized in that: The pipeline mold comprises an upper mold and a lower mold, the upper mold comprises a top plate, an upper mold plate and an upper molding assembly, the top plate is arranged above the upper mold plate, and the upper molding assembly is arranged on the upper mold plate; A first mold core cavity is provided at the bottom of the upper mold plate, and a core-pulling cavity is provided at the top of the first mold core cavity; The upper molding assembly includes a first upper mold core and an upper mold core-pulling structure, the first upper mold core is embedded in the first mold core cavity, a molding slide is provided on the first upper mold core, the molding slide is inclined along a first direction and passes through the first upper mold core up and down, and the upper mold core-pulling structure is provided on the upper mold plate and located in the core-pulling cavity; The upper die core pulling structure comprises a guide mechanism, a first driving mechanism, a slider and a sliding upper die; The sliding upper die is slidably disposed in the forming slide groove, the first end of the sliding upper die obliquely extends to the bottom of the first upper die core, and the sliding direction of the sliding upper die is a first direction, which is used to form an inclined forming structure; The guide mechanism is arranged at the top of the first upper mold core, and is used to guide the slide block to move along the second direction; The slider is slidably matched with the guide mechanism, and the slider is connected to the sliding upper mold to pull the sliding upper mold to demold or close the mold along a first direction; The first driving mechanism is connected to the slider to drive the slider to move along a second direction.

2. The pipe mold according to claim 1, characterized in that: The slider is slidably connected to the sliding upper die.

3. The pipe mold according to claim 2, characterized in that: The second end of the sliding upper die is provided with a first sliding surface, and the first sliding surface is provided with a first anti-slip groove; The slider is provided with a second sliding surface, the second sliding surface is provided with a first connecting block, the first connecting block extends into the first anti-slip groove, the part of the first connecting block extending into the first anti-slip groove is slidably matched with the first anti-slip groove, and the second sliding surface is slidably matched with the first sliding surface.

4. The pipe mold according to claim 1, characterized in that: The guide mechanism is provided with a first slide groove, and the opening of the first slide groove faces the forming slide groove; The sliding block is slidably disposed in the first sliding groove.

5. The pipe mold according to claim 4, characterized in that: A second anti-slip groove is provided in the first slide groove; The slider is provided with a third sliding surface, the third sliding surface is provided with a second connecting block, the second connecting block extends into the second anti-slip groove, the part of the second connecting block extending into the second anti-slip groove is slidably matched with the second anti-slip groove, and the third sliding surface is slidably matched with the first sliding groove.

6. The pipe mold according to claim 4, characterized in that: The guide mechanism comprises a first guide block and two second guide blocks, the two second guide blocks are respectively arranged on both sides of the slider, and the first guide block is arranged on the top of the slider; The area between the first guide block and the two second guide blocks is the first sliding groove, and the first guide block and the two second guide blocks are respectively slidably matched with the top and both sides of the sliding block.

7. The pipe mold according to claim 1, characterized in that: A second mold core cavity is also provided at the bottom of the upper mold plate, and the upper molding assembly also includes a second upper mold core, and the second upper mold core is embedded in the second mold core cavity.

8. The pipe mold according to any one of claims 1 to 7, characterized in that: The lower mold includes a lower template, a lower molding assembly, a lifting assembly and a bottom plate, the lifting assembly is arranged below the lower template, the lifting assembly is arranged between the lower template and the lifting assembly, and the lower molding assembly is arranged on the lower template.

9. The pipe mold according to claim 8, characterized in that: The lower mold plate is provided with a third mold core cavity and a fourth mold core cavity; The lower molding assembly includes a first lower mold core and a second lower mold core, and the first lower mold core and the second lower mold core are respectively embedded in the third mold core cavity and the fourth mold core cavity.

10. The pipe mold according to claim 1, characterized in that: The lower molding assembly further includes a power core pulling structure, which includes a sliding side mold, a sliding extension piece, and a second driving mechanism; The sliding extension is arranged on the side of the rear template, and a third sliding groove is arranged on the sliding extension, and the third sliding groove is connected to the second sliding groove on the rear template; The sliding side mold is slidably arranged in the second slide groove of the rear mold plate, and is used for forming the side structure of the product; The second driving mechanism includes a power element, which is arranged on the side of the rear mold plate and is connected to the sliding side mold to drive the sliding side mold to move.

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