Multi-directional side core-pulling injection mold for hot runner

Abstract

The utility model belongs to the field of hot runner injection molds, and particularly relates to a hot runner multidirectional side core-pulling injection mold which comprises a lower mold, the top of the lower mold is connected with an upper mold in a clamping manner, positioning components are movably mounted on the front side and the rear side of the lower mold, and bubble removing components are movably mounted on the left side and the right side of the lower mold. The bubble removing assembly comprises a first mounting plate, a second rotating shaft, a first gear and a rack, the second rotating shaft is rotationally connected to the middle position of the first mounting plate, and the first gear is fixedly mounted at the end, away from the first mounting plate, of the second rotating shaft; due to the arrangement of the bubble removing assembly, bubbles generated during injection molding can be removed through continuous knocking after injection molding of the injection mold is completed, waste materials accumulated in a runner of the injection mold can be conveniently cleaned, the runner can be conveniently opened to take out condensed materials after shutdown, and the lower mold can be fixed to a working table through the positioning assembly; and the stable placement of the mold is ensured.

Description

Technical Field

[0001] This utility model relates to the field of hot runner injection molds, specifically a hot runner multi-directional side-pulling injection mold. Background Technology

[0002] Hot runner multi-directional side-pulling injection mold is a special type of injection mold in the field of mold technology. It combines hot runner technology and multi-directional side-pulling mechanism to manufacture plastic products with complex shapes and structures.

[0003] In Chinese patent CN202121492061.6, this utility model provides a hot runner multi-directional side-pulling injection mold, including a fixed frame. A male template is fixedly installed on the top of the fixed frame, a female template is set on the top of the male template, a female mold core is fixedly installed on the bottom of the female template, and a fixed plate is set on the top of the female template. The outer wall of the water filling box is in contact with the bottom of the male template. At this time, the water filling box can provide initial cooling for the molded plastic. The operation of the fan drives the air inside the water filling box to flow and blow it to both sides of the molded plastic on the male template through the air duct. When the cold air is blown out through the air duct, the two rotatable air ducts will swing irregularly left and right at the opening of the air duct under the combined action of the wind force and the mutual attraction between magnet one and magnet two. At this time, the cold air blown out from the air duct will flow irregularly left and right on both sides of the molded plastic under the two swinging air ducts, thereby cooling the molded plastic twice to improve the cooling efficiency.

[0004] While existing hot runner injection molds can solve the problem of slow cooling and tight sealing of plastic onto the mold core during production, which leads to a significant reduction in production efficiency, traditional injection molds may accumulate waste material in the runner, which is difficult to clean. Furthermore, after shutdown, the runner needs to be opened to remove the solidified material, and the runner needs to be reheated to the required temperature when restarting the machine; otherwise, it will be difficult to achieve smooth demolding later.

[0005] Therefore, a hot runner multi-directional side-pulling injection mold is proposed to address the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a hot runner multi-directional side-pulling injection mold to solve the problems mentioned in the background art, such as the accumulation of waste material in the runner of traditional injection molds, which is difficult to clean, and the need to open the runner to remove solidified material after shutdown, and the need to reheat the runner to the required temperature when restarting, otherwise it is difficult to achieve smooth demolding.

[0007] The technical solution adopted by this utility model to solve its technical problem is: a hot runner multi-directional side core-pulling injection mold, including a lower mold, an upper mold is engaged with the top of the lower mold, and positioning components are movably installed on the front and rear sides of the lower mold, and bubble removal components are movably installed on the left and right sides of the lower mold.

[0008] The debubbling assembly includes a first mounting plate, a second rotating shaft, a first gear, and a rack. The second rotating shaft is rotatably connected to the middle position of the first mounting plate, and the first gear is fixedly mounted on the end of the second rotating shaft away from the first mounting plate. The rack is integrally formed on the outer wall of the first gear.

[0009] Preferably, the debubbling assembly includes a second gear and a third rotating shaft, the top of the rack is meshed with the second gear, and the third rotating shaft is integrally provided at the middle position of the second gear.

[0010] Preferably, the bubble removal assembly further includes a second mounting plate and a knocking block, the second mounting plate is fixedly mounted on the end of the third rotating shaft, and the knocking block is fixedly mounted on the outer wall of the third rotating shaft.

[0011] Preferably, the debubbling assembly further includes a telescopic spring, with the telescopic spring fixedly installed at the middle position of the tapping block, and the other end of the telescopic spring away from the tapping block being fixedly connected to the outer wall of the lower mold.

[0012] Preferably, the positioning component includes a support plate, a first rotating shaft, and a screw. The first rotating shaft is rotatably connected to the middle position of the support plate, and the screw is fixedly connected to the middle position of the first rotating shaft.

[0013] Preferably, the positioning assembly further includes a screw sleeve, a positioning block, and a positioning rod. The screw rod is threadedly connected to the outer wall of the screw sleeve, and the upper and lower sides of the screw sleeve are integrally provided with positioning blocks. The positioning rod is fixedly installed on the inner side of the positioning block. The positioning rod and the positioning block are slidably connected, and the end of the positioning rod is welded to the support plate.

[0014] Preferably, the positioning component further includes a connecting rod, a limiting block, and a limiting plate. The connecting rod is integrally provided on both sides of the outer wall of the screw sleeve, and the end of the connecting rod away from the screw sleeve is fixedly connected to the limiting block. The outer side of the limiting block is engaged with the limiting plate, and the limiting plate is welded to the lower mold.

[0015] The advantages of this utility model are:

[0016] 1. This utility model adopts a de-bubbling component. After the injection mold is completed, the second rotating shaft in the middle of the first mounting plate is started to rotate counterclockwise. This causes the first gear and rack to rotate counterclockwise, and the second gear to mesh with the first gear. The second gear rotates clockwise under the auxiliary rotation of the third rotating shaft. The knocking block rotates to open, and when the second rotating shaft rotates counterclockwise, the knocking block rotates to tighten. The telescopic spring plays a role in assisting in positioning the knocking block. When the knocking block is tightened, it can knock on the outer surface of the lower mold. This can continuously knock away the air bubbles generated during injection. This makes it easy to clean the waste material accumulated in the flow channel of the injection mold, and it is also convenient to open the flow channel and take out the solidified material after the machine is stopped.

[0017] 2. This utility model adopts a positioning component, which is fixed on both sides of the injection molding worktable. After the lower mold is injected onto the worktable, the first rotating shaft in the middle of the support plate is activated. When the first rotating shaft rotates, the screw starts to rotate synchronously. Since the inner wall of the screw sleeve has a threaded groove that matches the outer wall of the screw, the screw sleeve slides stably on the outer wall of the screw under the positioning action of the positioning block and the positioning rod when the screw rotates. Since the screw sleeve is installed and fixed to the limiting block through the connecting rod, the screw sleeve can drive the limiting block to engage and fix with the limiting plate on the outer wall of the lower mold. In this way, the lower mold can be fixed on the worktable, ensuring the stable placement of the mold. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural diagram of the entire utility model from the front view;

[0020] Figure 2 This is a schematic diagram of the specific structure of the lower mold of this utility model;

[0021] Figure 3 This is a schematic diagram of the specific structure of the bubble removal component of this utility model;

[0022] Figure 4 This is a schematic diagram of the specific structure of the positioning component of this utility model.

[0023] In the diagram: 1. Lower mold; 2. Upper mold; 3. Positioning assembly; 31. Support plate; 32. First rotating shaft; 33. Screw; 34. Screw sleeve; 35. Positioning block; 36. Positioning rod; 37. Connecting rod; 38. Limiting block; 39. Limiting plate; 4. De-bubbling assembly; 41. First mounting plate; 42. Second rotating shaft; 43. First gear; 44. Rack; 45. Second gear; 46. Third rotating shaft; 47. Second mounting plate; 48. Knocking block; 49. Telescopic spring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0025] Example 1

[0026] Please see Figures 1 to 4As shown, a hot runner multi-directional side-pulling injection mold includes a lower mold 1, with an upper mold 2 engaged at the top of the lower mold 1. Positioning components 3 are movably mounted on the front and rear sides of the lower mold 1, and de-bubbling components 4 are movably mounted on the left and right sides of the lower mold 1. The de-bubbling component 4 includes a first mounting plate 41, a second rotating shaft 42, a first gear 43, and a rack 44. The second rotating shaft 42 is rotatably connected to the middle position of the first mounting plate 41, and the first gear 43 is fixedly mounted at the end of the second rotating shaft 42 away from the first mounting plate 41. A rack 44 is integrally formed on the outer wall of the first gear 43. The de-bubbling component 4 facilitates smooth molding and demolding, making it easy to clean the waste material accumulated in the injection mold runner and to open the runner to remove solidified material after shutdown. The de-bubbling component 4 also includes a second gear 45 and a third rotating shaft 46. The second gear 45 is meshed with the top of the rack 44, and a positioning component 3 is movably mounted on the middle position of the second gear 45. The assembly includes a third rotating shaft 46, which allows the second gear 45 to mesh with the first gear 43. The second gear 45 rotates clockwise with the assistance of the third rotating shaft 46. The bubble removal assembly 4 also includes a second mounting plate 47 and a knocking block 48. The second mounting plate 47 is fixedly mounted at the end of the third rotating shaft 46, and the knocking block 48 is fixedly mounted on the outer wall of the third rotating shaft 46. With this configuration, the knocking block 48 rotates to open, and when the second rotating shaft 42 rotates counterclockwise, the knocking block 48 rotates to tighten. The bubble removal assembly 4 also includes a telescopic spring 49, which is fixedly mounted in the middle of the knocking block 48. The other end of the telescopic spring 49 away from the knocking block 48 is fixedly connected to the outer wall of the lower mold 1. The telescopic spring 49 serves to assist in positioning the knocking block 48. When the knocking block 48 is tightened, it can knock on the outer surface of the lower mold 1, thereby continuously knocking away the air bubbles generated during injection molding, which facilitates subsequent injection molding and smooth demolding.

[0027] Example 2

[0028] like Figure 1 and Figure 4As shown, based on Embodiment 1, this utility model provides a technical solution: the positioning component 3 includes a support plate 31, a first rotating shaft 32, and a screw 33. The first rotating shaft 32 is rotatably connected to the middle position of the support plate 31, and the screw 33 is fixedly connected to the middle position of the first rotating shaft 32. The positioning component 3 is fixed on both sides of the injection molding worktable. After the lower mold 1 is injected onto the injection molding worktable, the first rotating shaft 32 at the middle position of the support plate 31 is activated. When the first rotating shaft 32 rotates, the screw 33 starts to rotate synchronously. The positioning component 3 also includes a screw sleeve 34, a positioning block 35, and a positioning rod 36. The screw sleeve 34 is threadedly connected to the outer wall of the screw 33, and the positioning block 35 is integrally provided on the upper and lower sides of the screw sleeve 34. The positioning rod 36 is fixedly installed on the inner side of the positioning block 35. The positioning rod 36 and the positioning block 35 are slidably connected. The end of the positioning rod 36 is welded to the support plate 31. Since the inner wall of the screw sleeve 34 has a threaded groove that matches the outer wall of the screw 33, the screw sleeve 34 slides stably on the outer wall of the screw 33 under the positioning action of the positioning block 35 and the positioning rod 36 when the screw 33 rotates. The positioning assembly 3 also includes a connecting rod 37, a limiting block 38 and a limiting plate 39. The connecting rod 37 is integrally provided on both sides of the outer wall of the screw sleeve 34, and the end of the connecting rod 37 away from the screw sleeve 34 is fixedly connected to the limiting block 38. The outer side of the limiting block 38 is engaged with the limiting plate 39, and the limiting plate 39 is welded to the lower mold 1. Since the screw sleeve 34 is installed and fixed to the limiting block 38 through the connecting rod 37, the screw sleeve 34 can drive the limiting block 38 to engage and fix with the limiting plate 39 on the outer wall of the lower mold 1, so that the lower mold 1 can be fixed on the worktable.

[0029] Working principle: First, the upper mold 1 and the lower mold 2 form a hot runner multi-directional side core-pulling injection mold. The positioning component 3 is fixed on both sides of the injection worktable. After the lower mold 1 is injected into the worktable, the first rotating shaft 32 in the middle of the support plate 31 is started. When the first rotating shaft 32 rotates, the screw 33 starts to rotate synchronously. Since the inner wall of the screw sleeve 34 has a threaded groove that matches the outer wall of the screw 33, when the screw 33 rotates, the screw sleeve 34 slides stably on the outer wall of the screw 33 under the positioning action of the positioning block 35 and the positioning rod 36. Since the screw sleeve 34 is installed and fixed to the limiting block 38 through the connecting rod 37, the screw sleeve 34 can drive the limiting block 38 to engage and fix with the limiting plate 39 on the outer wall of the lower mold 1. In this way, the lower mold 1 can be fixed on the worktable.

[0030] Secondly, after injection molding is completed, the second rotating shaft 42 in the middle of the first mounting plate 41 is started to rotate counterclockwise, causing the first gear 43 and rack 44 to rotate counterclockwise. In this way, the second gear 45 meshes with the first gear 43. Under the auxiliary rotation of the third rotating shaft 46, the second gear 45 rotates clockwise, causing the knocking block 48 to rotate and open. When the second rotating shaft 42 rotates counterclockwise, the knocking block 48 rotates and tightens. The telescopic spring 49 plays the role of assisting in positioning the knocking block 48. When the knocking block 48 is tightened, it can knock on the outer surface of the lower mold 1. This can continuously knock away the air bubbles generated during injection molding, thereby facilitating subsequent injection molding and smooth demolding.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A hot runner multi-directional side-pulling injection mold, comprising a lower mold (1), characterized in that: The upper mold (2) is engaged with the top of the lower mold (1), and positioning components (3) are movably installed on the front and rear sides of the lower mold (1), and de-bubble components (4) are movably installed on the left and right sides of the lower mold (1). The debubbling assembly (4) includes a first mounting plate (41), a second rotating shaft (42), a first gear (43), and a rack (44). The second rotating shaft (42) is rotatably connected to the middle position of the first mounting plate (41), and the first gear (43) is fixedly installed at the end of the second rotating shaft (42) away from the first mounting plate (41). The rack (44) is integrally provided on the outer wall of the first gear (43).

2. The hot runner multi-directional side core-pulling injection mold according to claim 1, characterized in that: The debubbling assembly (4) includes a second gear (45) and a third rotating shaft (46). The top of the rack (44) is meshed with the second gear (45), and the third rotating shaft (46) is integrally provided at the middle position of the second gear (45).

3. A hot runner multi-directional side core-pulling injection mold according to claim 2, characterized in that: The debubbling assembly (4) also includes a second mounting plate (47) and a knocking block (48). The second mounting plate (47) is fixedly mounted on the end of the third rotating shaft (46), and the knocking block (48) is fixedly mounted on the outer wall of the third rotating shaft (46).

4. A hot runner multi-directional side core-pulling injection mold according to claim 3, characterized in that: The debubbling assembly (4) also includes a telescopic spring (49). The telescopic spring (49) is fixedly installed at the middle position of the tapping block (48), and the other end of the telescopic spring (49) away from the tapping block (48) is fixedly connected to the outer wall of the lower mold (1).

5. A hot runner multi-directional side core-pulling injection mold according to claim 1, characterized in that: The positioning component (3) includes a support plate (31), a first rotating shaft (32) and a screw (33). The first rotating shaft (32) is rotatably connected to the middle position of the support plate (31), and the screw (33) is fixedly connected to the middle position of the first rotating shaft (32).

6. A hot runner multi-directional side core-pulling injection mold according to claim 5, characterized in that: The positioning component (3) further includes a screw sleeve (34), a positioning block (35), and a positioning rod (36). The screw (33) is threadedly connected to the outer wall of the screw sleeve (34), and the upper and lower sides of the screw sleeve (34) are integrally provided with positioning blocks (35). The positioning rod (36) is fixedly installed on the inner side of the positioning block (35). The positioning rod (36) and the positioning block (35) are slidably connected, and the end of the positioning rod (36) is welded to the support plate (31).

7. A hot runner multi-directional side core-pulling injection mold according to claim 6, characterized in that: The positioning component (3) also includes a connecting rod (37), a limiting block (38), and a limiting plate (39). The connecting rod (37) is integrally provided on both sides of the outer wall of the threaded sleeve (34), and the end of the connecting rod (37) away from the threaded sleeve (34) is fixedly connected to the limiting block (38). The outer side of the limiting block (38) is engaged with the limiting plate (39), and the limiting plate (39) is welded to the lower mold (1).

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