Demolding and forming injection mold for blowing pipe of plastic blower

Abstract

The injection mold comprises a core plate and a cavity plate, and further comprises a demolding mechanism, the demolding mechanism comprises a first core pulling block, a sliding table, a first driving piece and a second driving piece, the sliding table is slidably connected to the core plate in the mold opening direction of the mold, and an abutting plate is arranged on the sliding table; the first core-pulling block penetrates in the mold opening direction perpendicular to the mold and is connected to the abutting plate in a sliding mode, the first driving piece is used for driving the sliding table to slide, and the second driving piece is used for driving the first core-pulling block to slide. When the mold is opened, the cavity plate is far away from the core plate, so that a product is left on the core plate, the first driving part drives the sliding table to slide towards one side of the cavity plate, so that the product is separated from the core plate and is left on the first core pulling block, and finally the second driving part drives the first core pulling block to slide towards one side far away from the core plate, so that the product is propped against the propping plate; and the first core pulling block pulls the product away, demolding is completed, the possibility of damage to the appearance surface is reduced, and demolding of the blowing pipe of the blower is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of injection molds, and in particular to a plastic blower tube demolding injection mold. Background Technology

[0002] The demolding principle of injection molds refers to the process of removing the molded plastic product from the mold during the injection molding process. Demolding of injection molds mainly relies on factors such as the mold's structural design, material selection, and surface treatment.

[0003] Reference Figure 6 This is a schematic diagram of the blower nozzle product structure. The blower nozzle body has a through hole coaxially, which is roughly a hollow tubular structure. In the existing technology, most mold demolding uses ejector pins to demold the molded product. However, the outer surface of this product is a rounded surface. Ejector pins can easily scratch the outer surface of the product, affecting the appearance quality of the product. Utility Model Content

[0004] To facilitate the demolding of the blower nozzle, this application provides a plastic blower nozzle demolding injection mold.

[0005] The technical solution provided in this application for a plastic blower nozzle demolding injection mold is as follows:

[0006] A plastic blower nozzle demolding injection mold includes a core plate and a cavity plate with outer molding surfaces, and a demolding mechanism for demolding the product. The demolding mechanism includes a first core-pulling block with molding surfaces, a sliding table, a first driving member, and a second driving member. The sliding table is slidably connected to the side of the core plate along the mold opening direction. An abutment plate is fixedly connected to the sliding table. The first core-pulling block passes through and is slidably connected to the abutment plate along the mold opening direction perpendicular to the mold. The first driving member is used to drive the sliding table to slide, and the second driving member is used to drive the first core-pulling block to slide.

[0007] By adopting the above technical solution, during the mold opening process, the cavity plate moves away from the core plate, allowing the product to detach from the cavity plate and remain on the core plate. Then, the first driving component drives the sliding stage to slide towards one side of the cavity plate, allowing the product to detach from the core plate and remain on the first core-pulling block. Finally, the second driving component drives the first core-pulling block to slide away from the core plate, with one end of the product abutting against the abutment plate. After the first core-pulling block is pulled away from the product, the demolding of the product is completed, reducing the possibility of damage to the appearance of the product and facilitating the demolding of the blower tube.

[0008] Preferably, the core plate is provided with multiple sliding grooves, and the sliding stage is provided with multiple limiting blocks, each of the multiple limiting blocks corresponding to a multiple sliding groove, and the multiple limiting blocks are slidably connected in the corresponding sliding groove along the sliding direction of the sliding stage.

[0009] By adopting the above technical solution, the sliding of the sliding table is limited, reducing the possibility of deviation in the movement of the sliding table, thereby reducing the possibility of damage to the appearance of the product during the demolding process.

[0010] Preferably, the first driving component includes a plurality of first cylinders, each of the plurality of first cylinders corresponding to a plurality of limiting blocks, each of the plurality of first cylinders being fixedly connected to the corresponding limiting blocks, and one end of the piston rod of each of the plurality of first cylinders passing through the corresponding limiting block and being fixedly connected to the core plate.

[0011] By adopting the above technical solution and setting multiple first cylinders, the possibility of the sliding stage getting stuck on one side can be reduced, thereby reducing the possibility of deviation in the movement of the sliding stage; through the piston movement of the piston rods of the multiple first cylinders, the sliding stage reciprocates on the core plate; when the mold is opened, the piston rods of the multiple first cylinders extend, causing the main body of the first cylinder to move away from the core plate, thereby driving the sliding stage to move away from the core plate.

[0012] Preferably, the sliding stage is provided with a plurality of guide posts on the side near the core plate, and the core plate is provided with a plurality of guide holes that can be inserted and engaged with the plurality of guide posts respectively. When the mold is in the mold closed state, the plurality of guide posts are inserted and engaged with the plurality of guide holes.

[0013] By adopting the above technical solution, the sliding table can be guided during mold opening and closing through the interlocking of multiple guide pillars and multiple guide holes, and the sliding table can be positioned, reducing the possibility of deviation in the movement of the sliding table.

[0014] Preferably, the second driving component includes a slide block and a second cylinder. The slide block is slidably connected to the sliding platform along the moving direction of the first core-pulling block. The first core-pulling block is fixedly connected to the slide block. The second cylinder is fixedly connected to the sliding platform. One end of the piston rod of the second cylinder is fixedly connected to the slide block.

[0015] By adopting the above technical solution, the piston movement of the second cylinder piston rod drives the slide and the first core-pulling block to reciprocate, which facilitates the demolding of the blower tube.

[0016] Preferably, it further includes a first side-pulling mechanism, which is used for side-pulling of the product. The first side-pulling mechanism includes a second core-pulling block and a third driving member. The second core-pulling block is slidably connected to the core plate along the sliding square of the first core-pulling block. The third driving member is used to drive the sliding of the second core-pulling block. When the mold is in the mold-closed state, the first core-pulling block and the opposite side of the second core-pulling block abut against each other.

[0017] By adopting the above technical solution, the sliding of the second core-pulling block is driven by the third driving component to complete the side core pulling of the product. The forming and demolding of the blower tube through hole part is completed by the cooperation of the first core-pulling block and the second core-pulling block, which facilitates the demolding of the blower tube.

[0018] Preferably, the first core-pulling block has an insertion block on one side near the second core-pulling block, and the second core-pulling block has an insertion groove that can be inserted and engaged with the insertion block. When the mold is in the closed state, the insertion block and the insertion groove are engaged and engaged.

[0019] By adopting the above technical solution, the possibility of misalignment between the first core-pulling block and the second core-pulling block is reduced through the interlocking fit between the plug and the plug slot, thereby improving the coaxiality of the two ends of the through hole portion of the molded product.

[0020] The main technical effects of this utility model are reflected in the following aspects:

[0021] 1. This utility model, by setting a sliding stage and an abutment block, allows the cavity plate to move away from the core plate during the mold opening process, so that the product detaches from the cavity plate and remains on the core plate. Then, the first driving component drives the sliding stage to slide towards one side of the cavity plate, so that the product detaches from the core plate and remains on the first core-pulling block. Finally, the second driving component drives the first core-pulling block to slide away from the core plate, so that one end of the product abuts against the abutment plate. After the first core-pulling block is pulled away from the product, the demolding of the product is completed, reducing the possibility of damage to the appearance of the product and facilitating the demolding of the blower tube.

[0022] 2. By setting guide pillars and guide grooves, and through the interlocking cooperation between multiple guide pillars and multiple guide holes, this utility model can guide the sliding table during the mold opening and closing process, and also has a positioning effect on the sliding table, reducing the possibility of deviation in the movement of the sliding table.

[0023] 3. By setting up a plug-in block and a plug-in slot, the present invention reduces the possibility of misalignment between the first core-pulling block and the second core-pulling block through the plug-in cooperation between the plug-in block and the plug-in slot, thereby improving the coaxiality of the two ends of the through hole part of the molded product. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0025] Figure 2 This is a schematic diagram of the core board structure according to an embodiment of this application.

[0026] Figure 3 This is a schematic diagram of the guide hole structure in an embodiment of this application.

[0027] Figure 4 This is a schematic diagram of the cavity plate structure according to an embodiment of this application.

[0028] Figure 5 This is a schematic diagram of the demolding mechanism structure in an embodiment of this application.

[0029] Figure 6 This is a schematic diagram of the product structure according to an embodiment of this application.

[0030] Explanation of reference numerals in the attached drawings: 1. Core plate; 11. Slide groove; 12. Guide hole; 2. Cavity plate; 4. Demolding mechanism; 41. First core-pulling block; 411. Insertion block; 42. Sliding stage; 421. Limiting block; 422. Guide post; 423. Abutment plate; 43. First driving component; 431. First cylinder; 44. Second driving component; 441. Second cylinder; 442. Slide seat; 5. First side-pulling mechanism; 51. Second core-pulling block; 511. Insertion groove; 52. Third driving component; 521. Third cylinder; 6. Second side-pulling mechanism; 61. Third core-pulling block; 62. Diagonal rod; 7. Blower pipe. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail to make the technical solution of this application easier to understand and master.

[0032] This application discloses an injection mold for demolding and forming a plastic hair dryer nozzle.

[0033] Reference Figures 1-5 This embodiment of a plastic blower nozzle demolding injection mold includes a core plate 1 and a cavity plate 2 with an outer molding surface, and also includes a demolding mechanism 4 for demolding the product. The demolding mechanism 4 includes a first core-pulling block 41 with a molding surface, a sliding table 42, a first driving member 43 and a second driving member 44. The sliding table 42 is slidably connected to the side of the core plate 1 along the mold opening direction. An abutment plate 423 is fixedly connected to the sliding table 42. The first core-pulling block 41 is inserted through and slidably connected to the abutment plate 423 along the mold opening direction perpendicular to the mold. The first driving member 43 is used to drive the sliding table 42 to slide, and the second driving member 44 is used to drive the first core-pulling block 41 to slide.

[0034] Reference Figures 1-4The core plate 1 has sliding grooves 11 on both sides in the width direction. Limiting blocks 421 are fixedly connected to both sides of the sliding table 42 in the width direction. Each limiting block 421 corresponds to one of the two sliding grooves 11 and is slidably connected within the corresponding sliding groove 11 along the sliding direction of the sliding table 42. This limits the sliding of the sliding table 42, reducing the possibility of deviation in its movement and thus reducing the possibility of damage to the product's appearance during demolding.

[0035] Reference Figures 1-4 The first driving component 43 includes two first cylinders 431, each corresponding to a limiting block 421. The two first cylinders 431 are fixedly connected to their respective limiting blocks 421. One end of the piston rod of each of the multiple first cylinders 431 passes through the corresponding limiting block 421 and is fixedly connected to the core plate 1. By providing multiple first cylinders 431, the possibility of one side of the sliding stage 42 getting stuck can be reduced, thereby reducing the possibility of deviation in the movement of the sliding stage 42.

[0036] Reference Figures 1-4 The second driving component 44 includes a slide block 442 and a second cylinder 441. The slide block 442 is slidably connected to the sliding table 42 along the moving direction of the first core-pulling block 41. The first core-pulling block 41 is fixedly connected to the slide block 442. The second cylinder 441 is fixedly connected to the sliding table 42. One end of the piston rod of the second cylinder 441 is fixedly connected to the slide block 442.

[0037] Reference Figures 1-3 The system also includes a first side-pulling mechanism 5, which is used for side-pulling of the through-hole portion of the product. The first side-pulling mechanism 5 includes a second core-pulling block 51 and a third driving member 52. The second core-pulling block 51 is slidably connected to the core plate 1 along the sliding square of the first core-pulling block 41. The third driving member 52 is used to drive the sliding of the second core-pulling block 51. When the mold is in the closed state, the opposite side of the first core-pulling block 41 and the second core-pulling block 51 abuts against each other. By driving the sliding of the second core-pulling block 51 through the third driving member 52, side-pulling of one side of the product is completed. Through the cooperation of the first core-pulling block 41 and the second core-pulling block 51, the forming and demolding of the through-hole portion of the blower pipe 7 are completed, facilitating the demolding of the blower pipe 7. The third driving member 52 is a third cylinder 521, which is fixedly connected to the core plate 1. One end of the piston rod of the third cylinder 521 is fixedly connected to the second core-pulling block 51.

[0038] Reference Figures 1-5It also includes a second side-pulling mechanism 6, which is used for lateral core pulling of the product connection structure. The second side-pulling mechanism 6 includes two third core-pulling blocks 61 and two inclined rods 62. The two third core-pulling blocks 61 are slidably connected to the core block along the mold opening direction perpendicular to the mold. The two inclined rods 62 are respectively fixedly connected to the cavity plate 2. The two inclined rods 62 correspond to the two third core-pulling blocks 61. The ends of the two inclined rods 62 away from the third core-pulling blocks 61 are respectively inserted and slidably connected to the corresponding third core-pulling blocks 61.

[0039] Reference Figures 1-6 During the mold opening process, the cavity plate 2 moves away from the core plate 1, and the third core-pulling block 61 moves away from the product via the inclined rod 62, completing the demolding of the product connection structure and the outer surface of the cavity part, so that the product leaves the cavity plate 2 and remains on the core plate 1; then the piston rod of the third cylinder 521 retracts, causing the second core-pulling block 51 to move away from the product, so that the second core-pulling block 51 detaches from the product; then the piston rods of the two first cylinders 431 extend, causing the main body of the first cylinder 431 to move away from the core plate 1, thereby driving the sliding table 42 to move away from the core plate 1. The product is detached from the core plate 1 and left on the first core-pulling block 41. Finally, by retracting the piston rod of the second cylinder 441, the first core-pulling block 41 is driven to slide away from the core plate 1. One end of the product abuts against the abutment plate 423, and the first core-pulling block 41 is pulled away from the product, thus completing the demolding of the product, reducing the possibility of damage to the appearance of the product, and facilitating the demolding of the blower tube 7.

[0040] Reference Figures 2-4 The sliding stage 42 has four guide pillars 422 connected to one side near the core plate 1, and four guide holes 12 arranged in a rectangular row. The four guide holes 12 pass through the sliding stage 42 along its sliding direction and are slidably connected to the core plate 1. The core plate 1 has four guide holes 12 that can be inserted into the four guide pillars 422. When the mold is in the closed state, the four guide pillars 422 are inserted into the four guide holes 12. Through the insertion and engagement of multiple guide pillars 422 and multiple guide holes 12, the sliding stage 42 can be guided during mold opening and closing, and it also has a positioning effect, reducing the possibility of deviation in the movement of the sliding stage 42.

[0041] Reference Figures 2-4A plug-in block 411 is fixedly connected to the side of the first core-pulling block 41 near the second core-pulling block 51. The second core-pulling block 51 has a plug-in groove 511 that can be plugged into the plug-in block 411. When the mold is in the closed state, the plug-in block 411 and the plug-in groove 511 are plugged into each other. Through the plug-in engagement between the plug-in block 411 and the plug-in groove 511, the possibility of misalignment between the first core-pulling block 41 and the second core-pulling block 51 is reduced, thereby improving the coaxiality of the two ends of the through hole portion of the molded product.

[0042] Of course, the above are just typical examples of this application. In addition, this application may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed in this application.

Claims

1. A plastic blower nozzle demolding injection mold, comprising a core plate (1) with an outer molding surface and a cavity plate (2), characterized in that: It also includes a demolding mechanism (4), which is used for demolding the product. The demolding mechanism (4) includes a first core-pulling block (41) with a molding surface, a sliding table (42), a first driving member (43), and a second driving member (44). The sliding table (42) is slidably connected to the side of the core plate (1) along the mold opening direction. An abutment plate (423) is fixedly connected to the sliding table (42). The first core-pulling block (41) is inserted through and slidably connected to the abutment plate (423) along the mold opening direction perpendicular to the mold. The first driving member (43) is used to drive the sliding table (42) to slide, and the second driving member (44) is used to drive the first core-pulling block (41) to slide.

2. The injection mold for demolding and molding a plastic hair dryer nozzle according to claim 1, characterized in that: The core plate (1) is provided with multiple sliding grooves (11), and the sliding stage (42) is provided with multiple limiting blocks (421). The multiple limiting blocks (421) correspond to the multiple sliding grooves (11) respectively, and the multiple limiting blocks (421) are slidably connected in the corresponding sliding grooves (11) along the sliding direction of the sliding stage (42).

3. The injection mold for demolding and molding a plastic hair dryer nozzle according to claim 2, characterized in that: The first driving component (43) includes a plurality of first cylinders (431), each of the plurality of first cylinders (431) corresponding to a plurality of limiting blocks (421). The plurality of first cylinders (431) are fixedly connected to the corresponding limiting blocks (421), and one end of the piston rod of the plurality of first cylinders (431) passes through the corresponding limiting blocks (421) and is fixedly connected to the core plate (1).

4. The injection mold for demolding and molding a plastic blower nozzle according to claim 3, characterized in that: The sliding stage (42) is provided with a plurality of guide posts (422) on the side near the core plate (1). The core plate (1) is provided with a plurality of guide holes (12) that can be inserted and engaged with the plurality of guide posts (422). When the mold is in the mold closed state, the plurality of guide posts (422) are inserted and engaged with the plurality of guide holes (12).

5. The injection mold for demolding and molding a plastic hair dryer nozzle according to claim 1, characterized in that: The second driving component (44) includes a slide (442) and a second cylinder (441). The slide (442) is slidably connected to the sliding table (42) along the moving direction of the first core-pulling block (41). The first core-pulling block (41) is fixedly connected to the slide (442). The second cylinder (441) is fixedly connected to the sliding table (42). One end of the piston rod of the second cylinder (441) is fixedly connected to the slide (442).

6. The injection mold for demolding and molding a plastic hair dryer nozzle according to claim 1, characterized in that: It also includes a first side-pulling mechanism (5), which is used for side-pulling of the product. The first side-pulling mechanism (5) includes a second core-pulling block (51) and a third driving member (52). The second core-pulling block (51) is slidably connected to the core plate (1) along the sliding square of the first core-pulling block (41). The third driving member (52) is used to drive the sliding of the second core-pulling block (51). When the mold is in the mold-closed state, the first core-pulling block (41) and the opposite side of the second core-pulling block (51) abut against each other.

7. The injection mold for demolding and molding a plastic hair dryer nozzle according to claim 6, characterized in that: The first core-pulling block (41) has a plug-in block (411) on one side near the second core-pulling block (51). The second core-pulling block (51) has a plug-in groove (511) that can be plugged into the plug-in block (411). When the mold is in the mold-closed state, the plug-in block (411) is plugged into the plug-in groove (511).

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