A mold

Abstract

The utility model discloses a mould, include: front mould module includes runner plate, A board, slider assembly, hot nozzle, front mould kernel, slider assembly slidingly arranged in A board, and one end of hot nozzle is fixed in runner plate, and the other end is penetrated to A board and is in abutment with front mould kernel, and front mould kernel is fixed in A board, back mould module includes backing plate, B board, guide pillar, back mould kernel, and backing plate and B board can be relatively removed along the opening mould direction, and back mould kernel is fixed in B board, guide pillar has first guide section and second guide section, slider assembly is seted up with first guide hole, and first guide section is slidably arranged in first guide hole, B board is seted up with second guide hole, and second guide section is slidably arranged in second guide hole, this structure guarantees that front mould module is unmoved and realizes the effect of front mould slider under the premise that oil cylinder is not used, and the stable and reasonable structure can also effectively improve mould cost, avoids the separation of hot runner hot nozzle and front mould kernel, improves the service life of mould, and reduces the risk of mould.

Description

Technical Field

[0001] This utility model relates to the field of molds, specifically to a mold. Background Technology

[0002] In the prior art, the hot nozzle is fixed on the runner plate and the slider is set on the A plate. In order for the slider to move normally, the runner plate and the A plate need to be opened first. Specifically, the slider is driven by the guide post, and then the front mold module and the rear mold module are separated to remove the workpiece.

[0003] However, during long-term use, the opening of the runner plate and the A plate will also drive the hot nozzle located on the runner plate. At this time, the hot nozzle will separate from the front mold core located on the A plate, creating a gap. The material inside the hot nozzle will flow into the gap, causing overflow. The presence of overflow will prevent the hot runner from discharging material. The hot nozzle and the front mold core will be squeezed for a long time and crack, causing the mold to deform, which poses a production safety risk. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is how to prevent glue overflow during the mold opening process. To this end, a mold includes: The front mold module includes a runner plate, an A-plate, a slider assembly, a hot nozzle, and a front mold core. The runner plate and the A-plate are stacked along the mold opening direction. The slider assembly is slidably disposed on the A-plate. One end of the hot nozzle is fixed to the runner plate, and the other end passes through the A-plate and abuts against the front mold core. The front mold core is fixed to the A-plate. The rear mold module includes a backing plate, a B-plate, guide pillars, and a rear mold core. The backing plate and the B-plate are stacked along the mold opening direction and can move relative to each other along the mold opening direction. The rear mold core is fixed to the B-plate. The guide post has an integrally formed first guide section and second guide section, which are arranged at an angle to each other. The slider assembly has a first guide hole, and the first guide segment slides through the first guide hole. The axis of the first guide segment forms an acute angle with the sliding direction of the slider assembly. The B plate has a second guide hole, and the second guide segment slides through the second guide hole. One end of the second guide segment is fixedly connected to the pad plate, and the axis of the second guide segment is perpendicular to the sliding direction of the slider assembly.

[0005] The number of slider assemblies is two, and the two slider assemblies are symmetrically arranged; the number of guide posts is two, and the two guide posts are symmetrically arranged, and each guide post corresponds to one of the two slider assemblies.

[0006] It also includes a first wear-resistant block, which is disposed on the guide post.

[0007] The first guide section of the guide post is provided with an inclined surface, the inclined surface is provided with a first fixing groove, the first wear-resistant block is disposed in the first fixing groove, and the top surface of the first wear-resistant block extends beyond the inclined surface.

[0008] The pad is provided with a mounting groove, and the second guide section of the guide post is provided with a fixing part, which extends into the mounting groove for fixation.

[0009] The second guide section of the guide post is provided with a stepped groove, which abuts against the pad.

[0010] A second fixing groove for installing a second wear-resistant block is provided around the second guide hole, and the second wear-resistant block abuts against the slider assembly and the second guide section of the guide post, respectively.

[0011] The number of hot nozzles is multiple, and the multiple hot nozzles are parallel to each other, with the axis of each hot nozzle being parallel to the mold opening direction.

[0012] The technical solution of this utility model has the following advantages: 1. This utility model provides a mold in which a hot runner nozzle, a front mold core, and a slider assembly are disposed in a front mold module, and guide pillars are disposed in a rear mold module, forming a structure in which the guide pillars and the front mold module are separately disposed. During mold opening, the front mold module remains stationary, the backing plate and B plate separate first, the guide pillars drive the slider assembly to slide backwards, and then the rear mold module separates from the front mold module to remove the workpiece. During the mold opening process, the runner plate and A plate are relatively stationary, therefore the hot runner nozzle fixed to the runner plate and the front mold core fixed to the A plate are always in contact. This structure ensures that the front mold module remains stationary and the front mold slider effect is achieved without the need for a hydraulic cylinder. The structure is stable and reasonable, effectively improving mold costs, avoiding the separation of the hot runner nozzle and the front mold core, increasing the mold's service life, and reducing mold-related risks.

[0013] 2. The mold provided by this utility model has a first wear-resistant block that allows for detachable installation, making replacement convenient and thus improving the overall service life.

[0014] 3. The mold provided by this utility model has a first wear-resistant block that extends beyond the inclined surface, which further enhances the fit between the first wear-resistant block and the first guide hole.

[0015] 4. The mold provided by this utility model has a fixing part that forms a positioning and fixing effect, which facilitates the connection and fixing between the guide post and the pad.

[0016] 5. The mold provided by this utility model has a second wear-resistant block, which reduces the friction between the B plate, the slider assembly, and the guide post, and improves the overall service life. The second wear-resistant block is also detachable. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 A cross-sectional view of the mold provided for this utility model; Figure 2 for Figure 1 Enlarged view of part A in the middle; Figure 3 A cross-sectional view of another form of the mold provided by this utility model; Figure 4 A schematic diagram of the structure of plate B provided by this utility model; Figure 5 This is a schematic diagram of the structure of the guide post and the first wear-resistant block provided by this utility model.

[0019] Explanation of reference numerals in the attached figures: 11. Runner plate; 12. A plate; 13. Slider assembly; 14. Hot runner; 15. Front mold core; 16. Backing plate; 17. B plate; 18. Guide pillar; 19. Rear mold core; 20. First wear-resistant block; 21. Second wear-resistant block; 131. First guide hole; 161. Mounting slot; 171. Second guide hole; 172. Second fixing slot; 181. Inclined surface; 182. Fixing part; 183. First fixing slot; 184. First guide section; 185. Second guide section; 186. Step groove. Detailed Implementation

[0020] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0024] This embodiment provides a mold, as shown in the attached figure. Figures 1-5 As shown, it includes: The front mold module includes a runner plate 11, an A-plate 12, a slider assembly 13, a hot runner nozzle 14, and a front mold core 15. The runner plate 11 and the A-plate 12 are stacked along the mold opening direction, with the A-plate 12 located below the runner plate 11. The slider assembly 13 is slidably mounted on the A-plate 12, and slides horizontally along the left and right sides under the influence of the guide post 18. One end of the hot runner nozzle 14 is fixed to the runner plate 11, and the other end passes through the A-plate 12 and abuts against the front mold core 15, which is fixed to the A-plate 12.

[0025] The rear mold module includes a backing plate 16, a B-plate 17, guide pillars 18, and a rear mold core 19. The backing plate 16 and B-plate 17 are stacked along the mold opening direction, with the backing plate 16 located below the B-plate 17. The rear mold module is located below the front mold module. At this time, the runner plate 11 is above the A-plate 12, and the B-plate 17 is above the backing plate 16 and below the A-plate 12. The backing plate 16 and B-plate 17 can move relative to each other along the mold opening direction. The rear mold core 19 is fixed to the B-plate 17.

[0026] The direction in which the rear mold module moves away from the front mold module is the mold opening direction.

[0027] The guide post 18 has an integrally formed first guide section 184 and second guide section 185, which are set at an angle and connected to each other. The angle between the first guide section 184 and the second guide section 185 can be adjusted according to actual needs.

[0028] The slider assembly 13 has a first guide hole 131, and the first guide section 184 slides through the first guide hole 131. The axis of the first guide section 184 forms an acute angle with the sliding direction of the slider assembly 13. When the guide post 18 moves, the first guide section 184 and the slider assembly 13 form an oblique shear fit, driving the slider assembly 13 to slide in the horizontal direction.

[0029] Plate B 17 has a second guide hole 171, and a second guide section 185 slides through the second guide hole 171. One end of the second guide section 185 is fixedly connected to the pad plate 16, and the axis of the second guide section 185 is perpendicular to the sliding direction of the slider assembly 13. Here, the second guide section 185 is vertically set, and the axis of the second guide section 185 is parallel to the mold opening direction; the first guide section 184 is inclined, and the axis of the first guide section 184 forms an acute angle with the mold opening direction; the sliding direction of the slider assembly 13 is to slide left and right along the horizontal direction, and the sliding direction of the slider assembly 13 is perpendicular to the mold opening direction. The hot nozzle 14, the front mold core 15, and the slider assembly 13 are set in the front mold module, and the guide post 18 is set in the rear mold module, forming a structure in which the guide post 18 is separately set from the front mold module. During mold opening, the front mold module remains stationary, while the backing plate 16 and B plate 17 separate first. The guide post 18 drives the slider assembly 13 to slide backwards. Then, the rear mold module separates from the front mold module to remove the workpiece. During the mold opening process, the runner plate 11 and A plate 12 remain relatively stationary. Therefore, the hot runner nozzle 14 fixed to the runner plate 11 and the front mold core 15 fixed to the A plate 12 are always in contact, thus preventing glue overflow. This structure ensures that the front mold module remains stationary and that the front mold slider effect is achieved without the need for a hydraulic cylinder. The structure is stable and reasonable, effectively improving mold costs. It avoids the separation of the hot runner nozzle 14 and the front mold core 15, increasing the mold's service life and reducing mold-related risks.

[0030] Here, the specific working steps are as follows: In the mold-closed state, the front mold module and the rear mold module move relative to each other. This movement can be either the front mold module or the rear mold module; those skilled in the art can adjust this according to actual needs. The front mold core 15 and the rear mold core 19 are in contact, and the slider assembly 13 slides towards the cavity side. The front mold core 15, the rear mold core 19, and the slider assembly 13 cooperate to form the cavity. The molten material enters the cavity through the hot nozzle 14, thereby injection molding to form the workpiece.

[0031] In the mold-opening state, the first step is the separation of pad 16 and plate B 17. Pad 16 moves away from plate B 17 along the mold-opening direction, while plate B 17 moves relative to guide post 18. Here, the drive mechanism moves pad 16 to achieve the separation between pad 16 and plate B 17. The drive mechanism can be a spring, pull rod limiter, or hydraulic mechanism to achieve the "parting" action. For example, spring thrust + equal-height screw limiter: a compression spring is installed between pad 16 and plate B 17. At the moment of mold opening, the spring releases thrust, causing plate B 17 to pop out first; it stops when the stroke reaches a preset value (blocked by the equal-height screw or limit post). Alternatively, the separation sequence can be controlled using a limit rod, limit ring groove, or resin opener / closer to ensure that plate B 17 separates from pad 16 first. In addition, those skilled in the art can also perform the separation operation according to other solutions. The guide post 18 is fixedly connected to the pad 16. The pad 16 drives the guide post 18 to move, and at the same time drives the first guide section 184 to move relative to the slider assembly 13. During the separation process, since the movement direction of the first guide section 184 is the same as the mold opening direction, the first guide section 184 and the first guide hole 131 on the slider assembly 13 form an acute angle relative to the mold opening direction. Therefore, the first guide section 184 presses the inner wall of the slider assembly 13, causing the slider assembly 13 to move horizontally. The slider assembly 13 slides horizontally away from the cavity.

[0032] The second step involves fixing the front mold module and separating the rear mold module from it. Specifically, in the rear mold module, the backing plate 16, B plate 17, and rear mold core 19 move away from the front mold module along the mold opening direction. The B plate 17 separates from the slider assembly 13 located on the A plate 12, and the rear mold core 19 separates from the front mold core 15, allowing the injection-molded workpiece to be removed. The power source for this separation can be the injection molding machine's mold closing mechanism driving the rear mold module to achieve the separation effect. This is also existing technology, so it will not be described in detail in this embodiment.

[0033] Specifically, as shown in the attached document Figures 1-5 As shown, there are two slider assemblies 13, which are symmetrically arranged. The slider assemblies 13 are arranged symmetrically from left to right. There are also two guide pillars 18, which are symmetrically arranged and correspond one-to-one with each of the two slider assemblies 13. For example, in the mold-closed state, the guide pillars 18 drive the two slider assemblies 13 to move towards each other; in the first step of the mold-opening state, the guide pillars 18 drive the two slider assemblies 13 to move away from each other.

[0034] Specifically, as shown in the attached document Figures 1-5As shown, it also includes a first wear-resistant block 20, where one first wear-resistant block 20 corresponds to one guide post 18. The first wear-resistant block 20 is disposed on the guide post 18. During the cooperation between the guide post 18 and the slider assembly 13, friction will occur in the contact area between the two. Long-term use will reduce the cooperation effect between the guide post 18 and the first guide hole 131. The first wear-resistant block 20 provides wear resistance, improves the overall service life, and increases the accuracy of mold operation. At the same time, the first wear-resistant block 20 can also be a detachable structure, making replacement convenient and thus improving the overall service life. In this embodiment, the first wear-resistant block 20 and the guide post 18 are connected by bolts. In addition, the first wear-resistant block 20 and the guide post 18 can also be connected by other methods, such as interference fit, snap-fit ​​connection, etc.

[0035] Specifically, as shown in the attached document Figures 1-5 As shown, the first guide section 184 of the guide post 18 has an inclined surface 181. The inclined surfaces 181 of the two guide posts 18 are arranged opposite to each other. The inclined surface 181 has a first fixing groove 183, and the first wear-resistant block 20 is disposed in the first fixing groove 183, with the top surface of the first wear-resistant block 20 extending beyond the inclined surface 181. The fact that the first wear-resistant block 20 extends beyond the inclined surface 181 further enhances the fit between the first wear-resistant block 20 and the first guide hole 131. Bolts pass through the first wear-resistant block 20 and are connected and fixed to the first fixing groove 183. Here, the hardness of the first wear-resistant block 20 is greater than the hardness of the slider assembly 13.

[0036] Specifically, as shown in the attached document Figures 1-5 As shown, the pad 16 has a mounting groove 161, and the second guide section 185 of the guide post 18 has a fixing part 182. The fixing part 182 is located at the bottom of the second guide section 185, and its size is smaller than the size of the area where it connects to the body of the second guide section 185. The fixing part 182 extends into the mounting groove 161 for fixation. The fixing part 182 provides a positioning and fixing effect, facilitating the connection and fixation between the guide post 18 and the pad 16. Furthermore, bolts pass through the mounting groove 161 and connect to the fixing part 182, forming a connection and fixation effect between the pad 16 and the guide post 18.

[0037] Specifically, the second guide section 185 of the guide post 18 is provided with a stepped groove 186, which abuts against the pad 16. Here, the stepped groove 186 is located at the connection between the fixing part 182 and the body of the second guide section 185. The stepped groove 186 plays a limiting and balancing role, making the movement of the guide post 18 more stable.

[0038] Specifically, as shown in the attached document Figures 1-5As shown, a second fixing groove 172 for mounting the second wear-resistant block 21 is provided around the second guide hole 171. This second fixing groove 172 is located on plate B 17. The second wear-resistant block 21 abuts against the slider assembly 13 and the guide post 18, respectively. Specifically, the top surface of the second wear-resistant block 21 abuts against the slider assembly 13, and the side surface of the second wear-resistant block 21 abuts against the connection point of the second guide section 185 of the guide post 18. The second wear-resistant block 21 improves wear resistance and prevents excessive wear of plate B 17 during operation. Furthermore, the hardness of the second wear-resistant block 21 is greater than the hardness of the slider assembly 13 and the guide post 18.

[0039] Specifically, as shown in the attached document Figure 3 As shown, there are multiple hot nozzles 14, which are parallel to each other and the axis of each hot nozzle 14 is parallel to the mold opening direction. Specifically, the hot nozzles 14 are set downwards, that is, downwards along the mold opening direction, which creates the effect that the axis of the hot nozzle 14 is parallel to the mold opening direction.

[0040] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A mold, characterized in that, include: The front mold module includes a runner plate (11), an A plate (12), a slider assembly (13), a hot nozzle (14), and a front mold core (15). The runner plate (11) and the A plate (12) are stacked along the mold opening direction. The slider assembly (13) is slidably disposed on the A plate (12). One end of the hot nozzle (14) is fixed to the runner plate (11), and the other end passes through the A plate (12) and abuts against the front mold core (15). The front mold core (15) is fixed to the A plate (12). The rear mold module includes a backing plate (16), a B plate (17), a guide post (18), and a rear mold core (19). The backing plate (16) and the B plate (17) are stacked along the mold opening direction. The backing plate (16) and the B plate (17) can move relative to each other along the mold opening direction. The rear mold core (19) is fixed to the B plate (17). The guide post (18) has an integrally formed first guide section (184) and second guide section (185), and the first guide section (184) and the second guide section (185) are arranged at an angle; The slider assembly (13) has a first guide hole (131), and the first guide segment (184) slides through the first guide hole (131). The axis of the first guide segment (184) forms an acute angle with the sliding direction of the slider assembly (13). The B plate (17) has a second guide hole (171), and the second guide segment (185) slides through the second guide hole (171). One end of the second guide segment (185) is fixedly connected to the pad plate (16), and the axis of the second guide segment (185) is perpendicular to the sliding direction of the slider assembly (13).

2. The mold according to claim 1, characterized in that, The number of slider assemblies (13) is two, and the two slider assemblies (13) are symmetrically arranged; the number of guide posts (18) is two, and the two guide posts (18) are symmetrically arranged and correspond one-to-one with the two slider assemblies (13).

3. The mold according to claim 1, characterized in that, It also includes a first wear-resistant block (20), which is disposed on the guide post (18).

4. The mold according to claim 3, characterized in that, The first guide section (184) of the guide post (18) is provided with an inclined surface (181), the inclined surface (181) is provided with a first fixing groove (183), the first wear-resistant block (20) is disposed in the first fixing groove (183), and the top surface of the first wear-resistant block (20) extends beyond the inclined surface (181).

5. The mold according to claim 1, characterized in that, The pad (16) is provided with a mounting groove (161), and the second guide section (185) of the guide post (18) is provided with a fixing part (182), which extends into the mounting groove (161) for fixing.

6. The mold according to claim 1, characterized in that, The second guide section (185) of the guide post (18) is provided with a stepped groove (186), which abuts against the pad (16).

7. The mold according to claim 1, characterized in that, The second guide hole (171) is surrounded by a second fixing groove (172) for installing a second wear-resistant block (21), and the second wear-resistant block (21) abuts against the second guide section (185) of the slider assembly (13) and the guide post (18).

8. The mold according to claim 1, characterized in that, The number of hot nozzles (14) is multiple, and the multiple hot nozzles (14) are parallel to each other and the axis of each hot nozzle (14) is parallel to the mold opening direction.

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