Injection molding mould frame for automobile parts

Abstract

The utility model relates to the technical field of injection molds, and discloses an automobile part injection molding mold frame which comprises a bottom plate, a lower mold block is fixedly connected to the top of the bottom plate, a lower mold is arranged in the lower mold block, a sliding groove is formed in the right side of the interior of the lower mold block, and a sliding plate is slidably connected to the interior of the lower mold block. The front side and the rear side of the top of the sliding plate are fixedly connected with downward pressing columns correspondingly, the top of the sliding plate is fixedly connected with a cutter, the bottom of the cutter is fixedly connected with a plurality of connecting rods, the bottoms of the connecting rods are fixedly connected with sliding discs correspondingly, and a plurality of limiting grooves are formed in the lower module; a plurality of first springs are arranged in the lower module, and supporting columns are fixedly connected to the four corners of the top of the bottom plate. According to the injection molding mold frame for the automobile parts, the redundant part of an injection molding opening can be automatically cut off, so that the processing quality of an injection molding part can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an injection molding die carrier for automotive parts. Background Art

[0002] Automotive parts refer to various spare parts that make up a motor vehicle and its body. A car usually consists of tens of thousands of parts. These parts can be classified into different categories such as engine systems, transmission systems, braking systems, steering systems, running systems, and electrical systems. According to different raw materials, they can also be divided into metal parts, plastic parts, electronic parts, etc. Among them, metal parts such as aluminum alloy castings have been widely used in the trend of automotive lightweighting and energy conservation. Structural parts is a general term, including the outer coverings of vehicles and the frame assemblies of non-load-bearing bodies, etc. The injection molding die carrier is an important part of a plastic mold, mainly serving as the support structure for the entire mold core. It is used in conjunction with an injection molding machine to inject molten plastic material into the mold cavity under high pressure and form the required plastic products after cooling and solidification. The design of the die carrier needs to consider the matching problem with the injection molding machine to ensure production efficiency and cost control. The die carrier can be said to be the skeleton of the entire set of molds, which is composed of a variety of steel plates and parts. Due to the large differences in the processing of the die carrier and the mold, it is usually produced by specialized manufacturers to utilize their respective production advantages to improve the overall quality and efficiency.

[0003] After retrieval, the Chinese patent literature publication number: CN217414723U. This utility model discloses a low-pressure injection molding die carrier for automotive parts, which relates to the technical field of injection molds and includes a lower connecting plate. The upper surface of the lower connecting plate is fixedly connected with a fixed template. Above the fixed template is arranged an ejection connecting plate, and above the ejection connecting plate is arranged a movable template. Four corners of the upper surface of the fixed template are fixedly connected with lower sliding rods. The lower sliding rods penetrate through the ejection connecting plate and the movable template. The ejection connecting plate and the movable template are both slidably connected with the lower sliding rods. A limiting support spring is sleeved on the lower sliding rods. A lower sliding rod and a limiting support spring are arranged on the fixed template. When the upper connecting plate drives the upper template to push downwards, the movable template squeezes the limiting support spring, and at the same time, the upper template squeezes the sealing support spring. As the upper connecting plate continues to descend, the acting force on the upper template and the movable template becomes greater and greater, thereby ensuring closer contact between the movable template and the upper template.

[0004] Although the above patent mentions in the specification that "in this utility model, a sealing support spring and an upper sliding rod are provided on the upper surface of the upper template, a lower sliding rod and a limit support spring are provided on the fixed template. When the upper connecting plate drives the upper template to push downward, when the lower surface of the upper template contacts the upper surface of the moving template, the moving template is pushed to continue moving downward, the moving template squeezes the limit support spring, and at the same time the upper template squeezes the sealing support spring. As the upper connecting plate continues to descend, the greater the pressure on the sealing support spring and the limit support spring, and at the same time the greater the acting force on the upper template and the moving template, thus ensuring a closer contact between the moving template and the upper template, ensuring that there is as little flash as possible during the injection molding process, thereby solving the problems of insufficient pressure in the existing equipment, resulting in an insufficiently compact connection between the moving template and the fixed template after mold clamping, causing flash in the product, wasting manpower and affecting the product quality", during the injection molding process, excess injection liquid usually solidifies at the injection port, and at this time manual cutting is required, which is not only time-consuming and laborious, but also affects the processing quality of the injection molded parts. Therefore, in view of the above deficiencies, an injection molding die carrier for automotive parts is proposed. Summary of the Utility Model

[0005] The purpose of the present utility model is to solve the deficiencies existing in the prior art, and to propose an injection molding die carrier for automotive parts, aiming to improve the problem that some injection molding die carriers for parts in the prior art cannot automatically cut off the excess parts at the injection port.

[0006] To achieve the above purpose, the present utility model provides the following technical solutions:

[0007] An injection molding die carrier for automotive parts, including a bottom plate, a lower module is fixedly connected to the top of the bottom plate, a lower mold is arranged inside the lower module, a chute is opened on the right side inside the lower module, a sliding plate is slidably connected inside the lower module, pressing columns are fixedly connected to both the front and rear sides of the top of the sliding plate, a cutting knife is fixedly connected to the top of the sliding plate, a plurality of connecting rods are fixedly connected to the bottom of the cutting knife, sliding disks are fixedly connected to the bottoms of the plurality of connecting rods, a plurality of limit grooves are opened inside the lower module, a plurality of spring I are arranged inside the lower module, support columns are fixedly connected to the four corners of the top of the bottom plate, a top plate is fixedly connected to the tops of the plurality of support columns, a cylinder is fixedly connected to the top of the top plate, a push rod is fixedly connected to the driving end of the cylinder, an upper mold is fixedly connected to the bottom of the push rod, buffer components are arranged outside the plurality of support columns, and a collection box is fixedly connected to the right side of the top of the lower module.

[0008] Further, a plurality of the buffer components each include a connection block. The adjacent sides of the plurality of connection blocks are respectively fixedly connected to the four outer corners of the upper mold. The opposite sides of the plurality of connection blocks are each fixedly connected with a sliding ring. A second spring is sleeved on the outer portion of each of the plurality of support columns. Fixed rings are fixedly connected to the four outer corners of the lower module.

[0009] Further, two clamping plates are slidably connected to the left outer side of the lower module. A connection ring is fixedly connected to the left side of the clamping plate. A threaded sleeve is fixedly connected to the left side of the connection ring. Limit frames are fixedly connected to the front and rear sides of the threaded sleeve. A fixed frame is fixedly connected to the left outer side of the lower module. A threaded column is rotatably connected to the inside of the fixed frame. A rotating disk is fixedly connected to the left side of the threaded column. Two sliding rods are fixedly connected to the left side of each of the two clamping plates. A third spring is sleeved on the outer portion of each of the two sliding rods. Two fixing plates are fixedly connected to the left inside of the lower module. An injection ring is fixedly connected to the right bottom of the upper mold.

[0010] Further, the outer portion of the sliding plate is slidably connected to the inside of the chute. The top of the pressing column is in contact with the bottom of the upper mold.

[0011] Further, the outer portion of the sliding disk is slidably connected to the inside of the limiting groove. The outer portion of the connecting rod is slidably connected to the inside of the limiting groove.

[0012] Further, one end of the first spring is fixedly connected to the bottom of the sliding disk, and the other end of the first spring is fixedly connected to the inside of the lower module.

[0013] Further, the inside of the fixed ring is fixedly connected to the inside of the support column, and the outer portion of the sliding ring is slidably connected to the outside of the support column.

[0014] Further, the inside of the threaded sleeve is threadedly connected to the outside of the threaded column, and the outer portion of the limit frame is slidably connected to the inside of the fixed frame.

[0015] The utility model has the following beneficial effects:

[0016] In the utility model, through the combined use of structures such as a chute, a sliding plate, a pressing column, a cutting knife, a connecting rod, a sliding disk, a limiting groove, a first spring, a support column, a top plate, etc., the injection molding die for automotive parts can automatically cut off the redundant part at the injection port, thereby improving the processing quality of the injection molded parts.

[0017] In the present utility model, through the combined use of structures such as clamping plates, connecting rings, threaded sleeves, limiting frames, fixed frames, threaded columns, rotating disks, sliding rods, etc., not only can the lower mold be stably fixed, but also the lower mold can be quickly replaced, and the mold closing process can be buffered to prevent damage to the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a perspective view of the injection molding die carrier for automotive parts proposed by the present utility model;

[0019] Figure 2 is a schematic internal structure diagram of the lower module of the injection molding die carrier for automotive parts proposed by the present utility model;

[0020] Figure 3 is a schematic internal structure diagram of the fixed frame of the injection molding die carrier for automotive parts proposed by the present utility model;

[0021] Figure 4 is a schematic structure diagram of the upper mold of the injection molding die carrier for automotive parts proposed by the present utility model.

[0022] Legend Explanation:

[0023] 1. Bottom plate; 2. Lower module; 3. Lower mold; 4. Chute; 5. Sliding plate; 6. Pressing column; 7. Cutting knife; 8. Connecting rod; 9. Sliding disk; 10. Limiting groove; 11. First spring; 12. Support column; 13. Top plate; 14. Cylinder; 15. Push rod; 16. Upper mold; 17. Connecting block; 18. Sliding ring; 19. Second spring; 20. Fixed ring; 21. Collection box; 22. Clamping plate; 23. Connecting ring; 24. Threaded sleeve; 25. Limiting frame; 26. Fixed frame; 27. Threaded column; 28. Rotating disk; 29. Sliding rod; 30. Third spring; 31. Fixed plate; 32. Injection ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Refer to Figure 1 - Figure 2, an embodiment provided by the present utility model: an injection molding die set for automotive parts, including a bottom plate 1, a lower module 2 is fixedly connected to the top of the bottom plate 1, a lower mold 3 is arranged inside the lower module 2, a chute 4 is opened on the right side inside the lower module 2, a sliding plate 5 is slidably connected inside the lower module 2, the chute 4 is used for the sliding of the sliding plate 5, both the front and rear sides of the top of the sliding plate 5 are fixedly connected with a downward pressure column 6, the sliding plate 5 is used to drive the movement of the downward pressure column 6 and the cutting knife 7, a cutting knife 7 is fixedly connected to the top of the sliding plate 5, which is used for cutting the formed automotive parts, the bottom of the cutting knife 7 is fixedly connected with a plurality of connecting rods 8, the bottoms of the plurality of connecting rods 8 are fixedly connected with a sliding disk 9, the connecting rods 8 are used to connect the sliding disk 9, and thus can drive the sliding disk 9 to displace, a plurality of limiting grooves 10 are opened inside the lower module 2, and the limiting grooves 10 are designed here as the sliding space of the sliding disk 9, a plurality of first springs 11 are arranged inside the lower module 2, the first springs 11 are used to provide the restoring force of the sliding plate 5, support columns 12 are fixedly connected to the four corners of the top of the bottom plate 1, a top plate 13 is fixedly connected to the tops of the plurality of support columns 12, the support columns 12 are used to support the top plate 13, a cylinder 14 is fixedly connected to the top of the top plate 13, a push rod 15 is fixedly connected to the driving end of the cylinder 14, the cylinder 14 is used to provide power for the push rod 15, the bottom of the push rod 15 is fixedly connected with an upper mold 16, and thus can push the upper mold 16, buffer components are arranged outside the plurality of support columns 12, and the buffer components are used to reduce the impact of the upper mold 16 on the lower mold 3, each of the plurality of buffer components includes a connecting block 17, the adjacent sides of the plurality of connecting blocks 17 are respectively fixedly connected to the four corners outside the upper mold 16, sliding rings 18 are fixedly connected to the remote sides of the plurality of connecting blocks 17, the sliding rings 18 are used to slide on the support columns 12, second springs 19 are sleeved outside the plurality of support columns 12, and the second springs 19 are used to provide buffer force, fixing rings 20 are fixedly connected to the four corners outside the lower module 2, a collection box 21 is fixedly connected to the right side of the top of the lower module 2, and the collection box 21 is used to collect the excess injection molding part of the cut automotive parts.

[0026] Refer to Figure 2 - Figure 3, on the left side of the outer part of the lower module 2, there are two clamping plates 22 slidably connected. The clamping plates 22 are used to clamp or fix the lower mold 3. On the left side of the clamping plates 22, there is a connecting ring 23 fixedly connected. On the left side of the connecting ring 23, there is a threaded sleeve 24 fixedly connected. The threaded sleeve 24 is used to cooperate with the threaded column 27 to realize the movement of the clamping plate 22. On both the front and rear sides of the threaded sleeve 24, there are limiting frames 25 fixedly connected. The limiting frames 25 are used to limit the rotation of the threaded sleeve 24 to ensure the stable movement of the clamping plate 22. On the left side of the outer part of the lower module 2, there is a fixed frame 26 fixedly connected. The fixed frame 26 is used to support the threaded column 27 and the limiting frame 25. Inside the fixed frame 26, there is a threaded column 27 rotatably connected. The threaded column 27 cooperates with the threaded sleeve 24 to realize the movement of the clamping plate 22. On the left side of the threaded column 27, there is a rotating disc 28 fixedly connected. The rotating disc 28 is used to manually or by means of a tool rotate the threaded column 27. On the left side of both clamping plates 22, there are two sliding rods 29 fixedly connected. The sliding rods 29 are used to keep stable when the clamping plate 22 moves. On the outer parts of both sliding rods 29, there are third springs 30 sleeved. The third springs 30 are used to provide the restoring force for the clamping plate 22. On the left side inside the lower module 2, there are two fixing plates 31 fixedly connected. On the bottom right side of the upper mold 16, there is an injection ring 32 fixedly connected. The injection ring 32 is used to inject molten plastic into the mold interior to form automotive parts.

[0027] Refer to Figure 2 - Figure 4 , the outer part of the sliding plate 5 is slidably connected inside the sliding groove 4 to ensure that the sliding plate 5 can move smoothly inside the sliding groove 4. The top of the pressing column 6 is in contact with the bottom of the upper mold 16. The outer part of the sliding disc 9 is slidably connected inside the limiting groove 10. The outer part of the connecting rod 8 is slidably connected inside the limiting groove 10. The sliding disc 9 slides inside the limiting groove 10 to ensure the stable movement of the pressing column 6. The connecting rod 8 is used to connect the sliding disc 9 and the cutting tool 7 to ensure the stable movement of the cutting tool 7. One end of the first spring 11 is fixedly connected to the bottom of the sliding disc 9, and the other end of the first spring 11 is fixedly connected to the inside of the lower module 2. The first spring 11 is used to provide the restoring force for the sliding disc 9 to ensure that the pressing column 6 and the cutting tool 7 can return to their original positions. The inside of the fixing ring 20 is fixedly connected to the inside of the support column 12. The outer part of the sliding ring 18 is slidably connected to the outside of the support column 12. The sliding ring 18 is used to connect the buffer assembly and the upper mold 16 to ensure the stable movement of the upper mold 16. The inside of the threaded sleeve 24 is threadedly connected to the outside of the threaded column 27. The outer part of the limiting frame 25 is slidably connected to the inside of the fixed frame 26. The threaded sleeve 24 cooperates with the threaded column 27 to realize the movement of the clamping plate 22.

[0028] Working principle: When it is necessary to process injection molded parts, the cylinder 14 can be started first. The cylinder 14 drives the push rod 15 to displace, and then the upper mold 16 can be driven to displace downward. Further, the connecting block 17 and the sliding ring 18 can be driven to displace downward. In this process, the second spring 19 will be compressed and rebound. At this time, the upper mold 16 and the lower mold 3 during the mold closing process can be protected. As the upper mold 16 displaces downward, the mold closing will be realized. As the upper mold 16 displaces, the pressing column 6 can be driven to press downward, and then the connecting rod 8 can be made to slide into the internal limit groove 10, so that the first spring 11 will be compressed. At this time, the cutting knife 7 will slide into the internal chute 4. At this time, the injection liquid can be added between the lower mold 3 and the upper mold 16 through the injection ring 32. After the injection molded part is formed, the cylinder 14 can be started to drive the upper mold 16 to displace upward. At this time, the pressing column 6 will no longer be stressed, and then the first spring 11 will rebound, and then the cutting knife 7 will displace upward. At this time, the redundant part at the injection ring 32 can be cut off by means of the cutting knife 7. The cut-off redundant part will slide along the cutting knife 7 into the internal collection box 21;

[0029] When it is necessary to replace the lower mold 3, the rotating disc 28 can be rotated. The rotating disc 28 drives the threaded column 27 to rotate. Further, with the limit of the limit frame 25, the threaded sleeve 24 can be made to displace. As the threaded sleeve 24 displaces, the connecting ring 23 can be driven to displace, and then the clamping plate 22 can be driven to displace. At this time, the clamping and fixing of the lower mold 3 can be released, and the replacement of the lower mold 3 can be realized. As the clamping plate 22 displaces, the sliding rod 29 will slide in the fixed plate 31, and then the third spring 30 will be compressed, so that the displacement of the clamping plate 22 can be made more stable by means of the elastic force of the third spring 30.

[0030] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An injection molding die set for automotive parts, comprising a bottom plate (1), characterized in that: The top of the bottom plate (1) is fixedly connected with a lower module (2). A lower mold (3) is arranged inside the lower module (2). A chute (4) is formed on the right side inside the lower module (2). A sliding plate (5) is slidably connected inside the lower module (2). Both the front and rear sides of the top of the sliding plate (5) are fixedly connected with pressing columns (6). A cutting knife (7) is fixedly connected to the top of the sliding plate (5). A plurality of connecting rods (8) are fixedly connected to the bottom of the cutting knife (7). Sliding disks (9) are fixedly connected to the bottoms of the plurality of connecting rods (8). A plurality of limiting grooves (10) are formed inside the lower module (2). A plurality of first springs (11) are arranged inside the lower module (2). Support columns (12) are fixedly connected to the four corners of the top of the bottom plate (1). A top plate (13) is fixedly connected to the tops of the plurality of support columns (12). A cylinder (14) is fixedly connected to the top of the top plate (13). A push rod (15) is fixedly connected to the driving end of the cylinder (14). An upper mold (16) is fixedly connected to the bottom of the push rod (15). Buffer assemblies are arranged outside the plurality of support columns (12). A collection box (21) is fixedly connected to the top right side of the lower module (2).

2. The injection molding die carrier for automotive parts according to claim 1, characterized in that: Each of the plurality of buffer assemblies includes a connecting block (17). The adjacent sides of the plurality of connecting blocks (17) are respectively fixedly connected to the four corners outside the upper mold (16). Sliding rings (18) are fixedly connected to the opposite sides of the plurality of connecting blocks (17). Second springs (19) are sleeved outside the plurality of support columns (12). Fixed rings (20) are fixedly connected to the four corners outside the lower module (2).

3. The injection molding die carrier for automotive parts according to claim 1, characterized in that: Two clamping plates (22) are slidably connected to the left side outside the lower module (2). A connecting ring (23) is fixedly connected to the left side of the clamping plate (22). A threaded sleeve (24) is fixedly connected to the left side of the connecting ring (23). Limiting frames (25) are fixedly connected to both the front and rear sides of the threaded sleeve (24). A fixed frame (26) is fixedly connected to the left side outside the lower module (2). A threaded column (27) is rotatably connected inside the fixed frame (26). A rotating disk (28) is fixedly connected to the left side of the threaded column (27). Two sliding rods (29) are fixedly connected to the left side of each of the two clamping plates (22). Third springs (30) are sleeved outside the two sliding rods (29). Two fixing plates (31) are fixedly connected to the left side inside the lower module (2). An injection molding ring (32) is fixedly connected to the bottom right side of the upper mold (16).

4. The injection molding die carrier for automotive parts according to claim 1, characterized in that: The outside of the sliding plate (5) is slidably connected inside the chute (4). The top of the pressing column (6) is in contact with the bottom of the upper mold (16).

5. The injection molding die carrier for automotive parts according to claim 1, wherein: The outside of the sliding disk (9) is slidably connected inside the limiting groove (10). The outside of the connecting rod (8) is slidably connected inside the limiting groove (10).

6. The injection molding die carrier for automotive parts according to claim 1, wherein: One end of the first spring (11) is fixedly connected to the bottom of the sliding disc (9), and the other end of the first spring (11) is fixedly connected to the inside of the lower module (2).

7. The injection molding die carrier for automotive parts according to claim 2, wherein: The inside of the fixing ring (20) is fixedly connected to the inside of the support column (12), and the outside of the sliding ring (18) is slidably connected to the outside of the support column (12).

8. The injection molding die carrier for automotive parts according to claim 3, characterized in that: The inside of the threaded sleeve (24) is threadedly connected to the outside of the threaded column (27), and the outside of the limiting frame (25) is slidably connected to the inside of the fixed frame (26).

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