Injection mold for dinner plate base

Abstract

The utility model belongs to the technical field of injection molds, and particularly relates to a dinner plate base injection mold which comprises a bottom plate, square iron is fixedly connected to the upper surface of the bottom plate, a lower mold frame is fixedly connected to the upper surface of the square iron, and a lower mold core is fixedly connected to the bottom of the inner wall of the lower mold frame. Left mold cores are arranged on the surface of the lower mold core and the inner wall of the lower mold frame in an attached mode, right mold cores are arranged on the right sides of the left mold cores, the surface of the lower mold core and the inner wall of the lower mold frame in an attached mode, and guide frames are fixedly connected to the front side and the rear side of the inner wall of the lower mold frame. According to the dinner plate base injection mold, through cooperation of the guide frame, the guide groove, the inclined hole, the guide column, the overturning support, the ejection hole, the ejection support and the spring, after the upper mold frame and the lower mold frame on the injection mold are separated, the formed dinner plate base can be automatically separated from the left mold core, the right mold core and the lower mold core; therefore, a user can conveniently take away the formed dinner plate base.

Description

TECHNICAL FIELD

[0001] The utility model belongs to injection mold technical field, concretely relates to a dinner plate base injection mold. BACKGROUND

[0002] Injection mold is a kind of tool for producing plastic product, and is also the tool for giving plastic product complete structure and accurate size.Injection molding is a kind of processing method for complex parts when batch producing certain shape, which refers to the high-pressure injection of heated and melted plastic into mold cavity by injection molding machine, and then gets shaped product after cooling and solidification.

[0003] At present, the injection mold for making dinner plate base is mainly composed of top plate, upper mold frame, upper mold core, left mold core, right mold core, lower mold core, guide frame, guide slot, guide column, guide hole, lower mold frame and bottom plate, wherein, when opening mold, the left mold core and the right mold core can be automatically separated by the cooperation of guide frame, guide slot, guide column and guide hole, but when taking out the shaped dinner plate base, the shaped dinner plate base is often stuck on the lower mold core, so that the worker cannot directly take out the shaped dinner plate base. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a dinner plate base injection mold, and solves the problem that the shaped dinner plate base is easily stuck on the lower mold core of the injection mold, so that the worker cannot directly take out the shaped dinner plate base.

[0005] The technical scheme adopted by the utility model is as follows:

[0006] A plate base injection mold includes a base plate. A square iron is fixedly connected to the upper surface of the base plate. A lower mold frame is fixedly connected to the upper surface of the square iron. A lower mold core is fixedly connected to the bottom of the inner wall of the lower mold frame. A left mold core is fitted to both the surface of the lower mold core and the inner wall of the lower mold frame. A right mold core is fitted to the right side of the left mold core, the surface of the lower mold core, and the inner wall of the lower mold frame. Guide frames are fixedly connected to both the front and rear sides of the inner wall of the lower mold frame. Guide grooves are formed on both the front and rear sides of the left mold core and the front and rear sides of the right mold core. The inner walls of the guide grooves are fitted to the surfaces of the guide frames. Inclined holes are formed inside both the left and right mold cores. Guide posts are fitted to the inner walls of the inclined holes. A connecting block is fixedly connected to the surface of the upper mold frame, and an upper mold core is fixedly connected to the inner wall of the upper mold frame. The inner walls of the left and right mold cores are both in contact with the surface of the upper mold core. A top plate is fixedly connected to the upper surface of the upper mold frame. A flipping bracket is fixedly connected to the bottom of the lower mold frame, and the bottom of the flipping bracket is in contact with the upper surface of the bottom plate. Ejection holes are provided inside the lower mold frame and the lower mold core. Ejection brackets are provided in contact with the inner wall of the ejection holes and the upper surface of the flipping bracket. Springs are fixedly connected to the upper surface of the ejection bracket and the bottom of the lower mold frame. Grooves are provided on both the left and right sides of the lower mold frame, and the inner walls of the grooves are in contact with the surface of the guide post.

[0007] The present invention is further configured such that the guide post is a circular post and the angle between the guide post and the horizontal plane is 60°.

[0008] This utility model is further configured such that the flipping bracket includes a flipping plate, a first support rod, a first bearing, a second support rod, a second bearing, a third bearing, and a U-shaped column. The inner wall of the flipping plate is fixedly connected to the surface of the first support rod, the surface of the first support rod is fixedly connected to the inner ring of the first bearing, the inner wall of the flipping plate is fixedly connected to the surface of the second support rod, the surface of the second support rod is fixedly connected to the inner ring of the second bearing, the upper and lower sides of the second bearing are respectively attached to the bottom of the ejector bracket and the upper surface of the base plate, the inner wall of the flipping plate is fixedly connected to the outer ring of the third bearing, the inner ring of the third bearing is fixedly connected to the surface of the U-shaped column, and the upper surface of the U-shaped column is fixedly connected to the bottom of the lower mold frame.

[0009] The present invention is further configured such that the ejector bracket includes a horizontal plate and an ejector rod, the upper surface of the horizontal plate is fixedly connected to the bottom of the spring, the bottom of the horizontal plate is in contact with the upper surface of the second bearing, the upper surface of the horizontal plate is fixedly connected to the bottom of the ejector rod, and the surface of the ejector rod is in contact with the inner wall of the ejector hole.

[0010] The present invention is further configured such that a strip-shaped hole is provided at the bottom of the lower mold frame, and a limiting bracket is fixedly connected to the bottom of both the left mold core and the bottom of the right mold core, and the inner wall of the strip-shaped hole and the upper surface of the horizontal plate are in contact with the surface of the limiting bracket.

[0011] The present invention is further configured such that the limiting bracket includes a U-shaped plate, a third support column and a fourth bearing, the bottom of the left mold core and the bottom of the right mold core are both fixedly connected to the upper surface of the U-shaped plate, the surface of the U-shaped plate is in contact with the inner wall of the strip hole, the front and rear ends of the third support column are both fixedly connected to the inner wall of the U-shaped plate, the surface of the third support column is fixedly connected to the inner ring of the fourth bearing, and the outer ring of the fourth bearing is in contact with the upper surface of the horizontal plate.

[0012] The technical effects achieved by this utility model are as follows:

[0013] This utility model discloses a dinner plate base injection mold. Through the cooperation of a guide frame, guide groove, oblique hole, and guide post, after the upper mold frame and lower mold frame are separated, the distance between the left mold core and the right mold core increases as the distance between the upper mold frame and the lower mold frame increases. At the same time, as the distance between the left mold core and the right mold core increases, the left mold core and the right mold core push the flipping bracket, causing the flipping bracket to rotate around the third bearing. Through the rotating flipping bracket, the ejector bracket moves upward. At this time, through the upward ejector bracket, the molded dinner plate base can be separated from the lower mold core. Thus, after the upper mold frame and lower mold frame of the injection mold are separated, the molded dinner plate base can automatically separate from the left mold core, the right mold core, and the lower mold core, making it convenient for the user to remove the molded dinner plate base.

[0014] This utility model discloses a dinner plate base injection mold by setting a limiting bracket at the bottom of the left mold core and the right mold core. When the left mold core and the right mold core are put together, the fourth bearing at the bottom of the limiting bracket contacts the horizontal plate on the ejector bracket. At this time, the limiting bracket can limit the ejector bracket, so that the ejector bracket will not jump due to vibration during the injection process. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a left view of the structure of this utility model;

[0017] Figure 3 This is a top view of the lower mold frame in this utility model;

[0018] Figure 4 This is a left view of the lower mold frame in this utility model;

[0019] Figure 5 This is a top view of the left and right mold cores in this utility model;

[0020] Figure 6 This is a right view of the right mold core in this utility model;

[0021] Figure 7 This is a front view of the flip-up bracket in this utility model;

[0022] Figure 8 This is a side view of the flip-up bracket in this utility model;

[0023] Figure 9 This is a front view of the ejector bracket in this utility model;

[0024] Figure 10 This is a left view of the ejector bracket in this utility model;

[0025] Figure 11 This is a side view of the limiting bracket in this utility model.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1. Base plate; 2. Square iron; 3. Lower mold frame; 4. Lower mold core; 5. Left mold core; 6. Right mold core; 7. Guide frame; 8. Guide groove; 9. Angled hole; 10. Guide post; 11. Connecting block; 12. Upper mold frame; 13. Upper mold core; 14. Top plate; 15. Flipping bracket; 151. Flipping plate; 152. First support rod; 153. First bearing; 154. Second support rod; 155. Second bearing; 156. Third bearing; 157. U-shaped column; 16. Ejection hole; 17. Ejection bracket; 171. Horizontal plate; 172. Ejection rod; 18. Spring; 19. Groove; 20. Strip hole; 21. Limiting bracket; 211. U-shaped plate; 212. Third support post; 214. Fourth bearing. Detailed Implementation

[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] like Figures 1 to 10As shown, the injection mold for the base of the dinner plate includes a base plate 1. A square iron 2 is fixedly connected to the upper surface of the base plate 1. A lower mold frame 3 is fixedly connected to the upper surface of the square iron 2. A lower mold core 4 is fixedly connected to the bottom of the inner wall of the lower mold frame 3. A left mold core 5 is fitted to both the surface of the lower mold core 4 and the inner wall of the lower mold frame 3. A right mold core 6 is fitted to the right side of the left mold core 5, the surface of the lower mold core 4, and the inner wall of the lower mold frame 3. Guide frames 7 are fixedly connected to both the front and rear sides of the inner wall of the lower mold frame 3. Guide grooves 8 are provided on both the front and rear sides of the left mold core 5 and the front and rear sides of the right mold core 6. The inner wall of the guide groove 8 is fitted to the surface of the guide frame 7. Inclined holes 9 are provided inside the left mold core 5 and the right mold core 6. Guide pillars 10 are fitted to the inner walls of the inclined holes 9. The guide pillars 10 are circular pillars with an angle of 60° between the guide pillars 10 and the horizontal plane. A connecting block 11 is fixedly connected to the surface of the guide post 10. An upper mold frame 12 is fixedly connected to the surface of the connecting block 11. An upper mold core 13 is fixedly connected to the inner wall of the upper mold frame 12. The inner walls of the left mold core 5 and the right mold core 6 are both in contact with the surface of the upper mold core 13. A top plate 14 is fixedly connected to the upper surface of the upper mold frame 12. A flipping bracket 15 is fixedly connected to the bottom of the lower mold frame 3. The bottom of the flipping bracket 15 is in contact with the upper surface of the bottom plate 1. An ejection hole 16 is provided inside the lower mold frame 3 and inside the lower mold core 4. An ejection bracket 17 is provided in contact with the inner wall of the ejection hole 16 and the upper surface of the flipping bracket 15. A spring 18 is fixedly connected to the upper surface of the ejection bracket 17 and the bottom of the lower mold frame 3. Grooves 19 are provided on both the left and right sides of the lower mold frame 3. The inner wall of the groove 19 is in contact with the surface of the guide post 10.

[0031] The flipping bracket 15 includes a flipping plate 151, a first support rod 152, a first bearing 153, a second support rod 154, a second bearing 155, a third bearing 156, and a U-shaped column 157. The inner wall of the flipping plate 151 is fixedly connected to the surface of the first support rod 152. The surface of the first support rod 152 is fixedly connected to the inner ring of the first bearing 153. The inner wall of the flipping plate 151 is fixedly connected to the surface of the second support rod 154. The surface of the second support rod 154 is fixedly connected to the inner ring of the second bearing 155. The upper and lower sides of the second bearing 155 are respectively attached to the bottom of the ejector bracket 17 and the upper surface of the base plate 1. The inner wall of the flipping plate 151 is fixedly connected to the outer ring of the third bearing 156. The inner ring of the third bearing 156 is fixedly connected to the surface of the U-shaped column 157. The upper surface of the U-shaped column 157 is fixedly connected to the bottom of the lower mold frame 3.

[0032] The ejector bracket 17 includes a horizontal plate 171 and an ejector rod 172. The upper surface of the horizontal plate 171 is fixedly connected to the bottom of the spring 18, the bottom of the horizontal plate 171 is in contact with the upper surface of the second bearing 155, the upper surface of the horizontal plate 171 is fixedly connected to the bottom of the ejector rod 172, and the surface of the ejector rod 172 is in contact with the inner wall of the ejector hole 16.

[0033] It should be noted that, through the cooperation of the guide frame 7 and the guide groove 8, the left mold core 5 and the right mold core 6 can only move left or right on the lower mold frame 3. At the same time, when the upper mold frame 12 is separated from the lower mold frame 3, the left mold core 5 and the right mold core 6 can be separated through the cooperation of the inclined hole 9 and the guide post 10. When the upper mold frame 12 is combined with the lower mold frame 3, the left mold core 5 and the right mold core 6 can be combined through the cooperation of the inclined hole 9 and the guide post 10. When the left mold core 5 and the right mold core 6 push the first bearing 153 on the flipping bracket 15, the flipping plate 151 rotates around the third bearing 156 through the thrust. By rotating the flipping plate 151, the second bearing 155 pushes the ejector bracket 17 to move upward. When the left mold core 5 and the right mold core 6 are separated from the first bearing 153, the ejector bracket 17 and the flipping bracket 15 return to their initial positions through the elastic force of the spring 18.

[0034] like Figures 1 to 11 As shown, a strip hole 20 is provided at the bottom of the lower mold frame 3. Limiting brackets 21 are fixedly connected to the bottom of the left mold core 5 and the bottom of the right mold core 6. The inner wall of the strip hole 20 and the upper surface of the horizontal plate 171 are in contact with the surface of the limiting bracket 21.

[0035] The limiting bracket 21 includes a U-shaped plate 211, a third support column 212, and a fourth bearing 214. The bottom of the left mold core 5 and the bottom of the right mold core 6 are fixedly connected to the upper surface of the U-shaped plate 211. The surface of the U-shaped plate 211 is in contact with the inner wall of the strip hole 20. The front and rear ends of the third support column 212 are fixedly connected to the inner wall of the U-shaped plate 211. The surface of the third support column 212 is fixedly connected to the inner ring of the fourth bearing 214. The outer ring of the fourth bearing 214 is in contact with the upper surface of the horizontal plate 171.

[0036] It should be noted that when the left mold core 5 and the right mold core 6 are put together, the fourth bearing 214 at the bottom of the limiting bracket 21 contacts the horizontal plate 171 on the ejector bracket 17. At this time, the ejector bracket 17 can be limited by the limiting bracket 21, so that the ejector bracket 17 will not jump due to vibration during the injection molding process.

[0037] The working principle of this utility model is as follows: First, the injection mold is fixed on the injection molding machine. Then, the upper mold base 12 and the lower mold base 3 are combined together. Through the cooperation of the guide frame 7, guide groove 8, oblique hole 9 and guide post 10, the left mold core 5, right mold core 6, upper mold core 13 and lower mold core 4 are combined together. Then, through the flow channel on the top plate 14 and the upper mold base 12, the raw material is injected into the mold cavity composed of the left mold core 5, right mold core 6, lower mold core 4 and upper mold core 13.

[0038] After the raw material is formed, the upper mold frame 12 is moved upward to separate it from the lower mold frame 3. Through the cooperation of the guide frame 7, guide groove 8, oblique hole 9 and guide post 10, the left mold core 5 and the right mold core 6 are separated from the formed plate base. Then, when the left mold core 5 and the right mold core 6 push the first bearing 153 on the flipping bracket 15, the flipping plate 151 is rotated around the third bearing 156 by the thrust. By rotating the flipping plate 151, the second bearing 155 pushes the ejector bracket 17 to move upward. At this time, the formed plate base is separated from the lower mold core 4 by the upward-moving ejector rod 172. At this time, the formed plate base can be removed.

[0039] During mold closing, the upper mold base 12 and the lower mold base 3 are joined together, and through the cooperation of the guide frame 7, guide groove 8, oblique hole 9 and guide post 10, the left mold core 5, right mold core 6, upper mold core 13 and lower mold core 4 are joined together. At the same time, through the elastic force of the spring 18, the ejector bracket 17 and the flipping bracket 15 are returned to their initial positions.

[0040] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A plate base injection mold, characterized in that: Includes a base plate (1), on the upper surface of the base plate (1) a square iron (2) is fixedly connected, on the upper surface of the square iron (2) a lower mold frame (3) is fixedly connected, and at the bottom of the inner wall of the lower mold frame (3) a lower mold core (4) is fixedly connected. A left mold core (5) is attached to both the surface of the lower mold core (4) and the inner wall of the lower mold frame (3). A right mold core (6) is attached to both the right side of the left mold core (5), the surface of the lower mold core (4), and the inner wall of the lower mold frame (3). Guide frames (7) are fixedly connected to the front and rear sides of the inner wall of the frame (3). Guide grooves (8) are provided on the front and rear sides of the left mold core (5) and the front and rear sides of the right mold core (6). The inner wall of the guide groove (8) is in contact with the surface of the guide frame (7). Inclined holes (9) are provided inside the left mold core (5) and the right mold core (6). Guide posts (10) are attached to the inner wall of the inclined holes (9). Connecting blocks (11) are fixedly connected to the surface of the guide posts (10). The upper mold frame (12) is fixedly connected to the surface of the connecting block (11). The upper mold core (13) is fixedly connected to the inner wall of the upper mold frame (12). The inner walls of the left mold core (5) and the right mold core (6) are both in contact with the surface of the upper mold core (13). The top plate (14) is fixedly connected to the upper surface of the upper mold frame (12). The bottom of the lower mold frame (3) is fixedly connected to the flipping bracket (15). The bottom of the flipping bracket (15) is connected to the upper surface of the bottom plate (1). The lower mold frame (3) and the lower mold core (4) are both provided with ejector holes (16). The inner wall of the ejector hole (16) and the upper surface of the flipping bracket (15) are both provided with ejector brackets (17). The upper surface of the ejector bracket (17) and the bottom of the lower mold frame (3) are both fixedly connected with springs (18). The left and right sides of the lower mold frame (3) are provided with grooves (19). The inner wall of the groove (19) is in contact with the surface of the guide post (10).

2. The injection mold for the plate base according to claim 1, characterized in that: The guide post (10) is a circular post, and the angle between the guide post (10) and the horizontal plane is 60°.

3. The injection mold for the plate base according to claim 1, characterized in that: The flipping bracket (15) includes a flipping plate (151), a first support rod (152), a first bearing (153), a second support rod (154), a second bearing (155), a third bearing (156), and a U-shaped column (157). The inner wall of the flipping plate (151) is fixedly connected to the surface of the first support rod (152), and the surface of the first support rod (152) is fixedly connected to the inner ring of the first bearing (153). The inner wall of the flipping plate (151) is fixedly connected to the surface of the second support rod (154). The surfaces of the second support rod (154) are fixedly connected to the inner ring of the second bearing (155). The upper and lower sides of the second bearing (155) are respectively attached to the bottom of the ejector bracket (17) and the upper surface of the base plate (1). The inner wall of the flip plate (151) is fixedly connected to the outer ring of the third bearing (156). The inner ring of the third bearing (156) is fixedly connected to the surface of the U-shaped column (157). The upper surface of the U-shaped column (157) is fixedly connected to the bottom of the lower mold frame (3).

4. The injection mold for the plate base according to claim 3, characterized in that: The ejector bracket (17) includes a horizontal plate (171) and an ejector rod (172). The upper surface of the horizontal plate (171) is fixedly connected to the bottom of the spring (18). The bottom of the horizontal plate (171) is attached to the upper surface of the second bearing (155). The upper surface of the horizontal plate (171) is fixedly connected to the bottom of the ejector rod (172). The surface of the ejector rod (172) is attached to the inner wall of the ejector hole (16).

5. The injection mold for the plate base according to claim 4, characterized in that: The bottom of the lower mold frame (3) is provided with a strip hole (20). The bottom of the left mold core (5) and the bottom of the right mold core (6) are fixedly connected to a limit bracket (21). The inner wall of the strip hole (20) and the upper surface of the horizontal plate (171) are in contact with the surface of the limit bracket (21).

6. The injection mold for the plate base according to claim 5, characterized in that: The limiting bracket (21) includes a U-shaped plate (211), a third support column (212) and a fourth bearing (214). The bottom of the left mold core (5) and the bottom of the right mold core (6) are fixedly connected to the upper surface of the U-shaped plate (211). The surface of the U-shaped plate (211) is in contact with the inner wall of the strip hole (20). The front and rear ends of the third support column (212) are fixedly connected to the inner wall of the U-shaped plate (211). The surface of the third support column (212) is fixedly connected to the inner ring of the fourth bearing (214). The outer ring of the fourth bearing (214) is in contact with the upper surface of the horizontal plate (171).

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