Injection mold with anti-leakage function
By designing damping rods and flexible steel wire ropes, the problem of material leakage caused by injection mold shaking was solved, achieving a leak-proof effect and improving production efficiency and equipment life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI JINYUAN PRECISION MOULD CO LTD
- Filing Date
- 2025-06-25
- Publication Date
- 2026-05-22
AI Technical Summary
Existing injection molds are prone to shaking during the injection process, which can cause leakage of the injection liquid, increasing production time and the burden of manual cleaning.
The damping rod is designed to control the clamping ring, which is then fixed with a flexible steel wire rope and a nut. Through the cooperation of the damping rod and the flexible steel wire rope, the shaking of the injection tube opening is reduced, ensuring the clamping effect and preventing material leakage.
It effectively reduces wobbling at the injection nozzle, minimizes material leakage, saves processing time, and extends equipment lifespan.
Smart Images

Figure CN224266108U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of injection mold technology, and in particular to an injection mold with anti-leakage function. Background Technology
[0002] Injection molds are tools used in industrial production to shape articles. They mainly achieve the shaping of articles by changing the physical state of the material. Injection molds are composed of various parts, including fixed molds and moving molds (or punches and dies), which can be separated or joined. When separated, the part is removed, and when joined, the blank is injected into the mold cavity to form the shape.
[0003] However, in the existing technology, existing molds will shake during injection molding. The shaking of the mold will cause the injection tube and the injection port to shake, resulting in gaps at the connection. The injection liquid will leak out from the gaps, resulting in material leakage. The leakage may block the injection tube from normal injection. After the leakage cools down, it needs to be manually processed again, thus increasing production time. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide an injection mold with a leak-proof function.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: an injection mold with anti-leakage function, comprising: a body mechanism, a clamping mechanism on one side of the body mechanism, a fixing mechanism at the bottom of the clamping mechanism, the clamping mechanism including a placement plate, a damping rod fixedly connected to the bottom of the placement plate, a damping ring fixedly connected to the bottom of the damping rod, two rotating rods rotatably connected to the bottom sides of the placement plate via rotating parts, a rotating shaft rotatably connected to one side of each of the two rotating rods, a block rotatably connected to one side of each of the two rotating shafts, a sliding block provided on the outer side of each of the two sliders, a moving column fixedly connected to one side of each of the two sliders, a clamping ring fixedly connected to one side of each of the two moving columns, and a connecting plate at the bottom of the fixing ring.
[0006] In a preferred embodiment, the fixing mechanism includes a screw and a stud. A handle is fixedly connected to one side of the screw and a flexible steel wire rope is driven to the outside of the screw. A nut is provided at one end of the flexible steel wire rope, and a connecting block is fixedly connected to the end of the flexible steel wire rope away from the nut.
[0007] In a preferred embodiment, the main body mechanism includes a lower mold, and an upper mold is provided on one side of the lower mold.
[0008] In a preferred embodiment, two rotating rods are rotatably connected to one side of the two sliders, and one end of the two rotating rods is rotatably connected to the top two sides of the connecting plate through a rotating component. The outer sides of the two moving columns are slidably connected to the inside of the fixed ring, and the outer sides of the two clamping rings are slidably connected to the inside of the fixed ring.
[0009] In a preferred embodiment, the top of the connecting block is fixedly connected to one side of the bottom of the connecting plate, the side of the threaded post away from the throttle is threadedly connected to one side of the upper mold, and one side of the nut is threadedly connected to the outer side of the threaded post.
[0010] In a preferred embodiment, one side of each of the two slide blocks is fixedly connected to one side of the upper mold, and one side of the fixing ring is fixedly connected to one side of the upper mold.
[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0012] The beneficial effects of this utility model are as follows: By designing a damping rod to control the clamping ring, a preliminary clamping effect can be achieved on the injection nozzle; the damping rod can effectively reduce the shaking of the injection nozzle when it shakes, reducing the gaps at the injection nozzle to a controllable range, thereby increasing the interval for manual cleaning of leaks and saving processing time; the connection plate is tightened by a flexible steel wire rope, which ensures that the clamping rings on both sides constantly clamp the injection nozzle, ensuring that it can be dampened at all times; by setting a nut to fix the flexible steel wire rope, the flexible steel wire rope can be firmly fixed, and the rotation depth of the threaded column can be controlled to protect the mechanism from being stretched too much and deformed. Attached Figure Description
[0013] Figure 1 A schematic diagram of the main body structure of an injection mold with anti-leakage function provided by this utility model.
[0014] Figure 2 This utility model provides a schematic diagram of the clamping mechanism of an injection mold with anti-leakage function.
[0015] Figure 3 This is a schematic diagram of the unfolded structure of a clamping mechanism for an injection mold with anti-leakage function provided by this utility model.
[0016] Figure 4 This is a schematic diagram of the clamping mechanism of an injection mold with anti-leakage function provided by this utility model.
[0017] Figure 5 A schematic diagram of the fixing mechanism of an injection mold with anti-leakage function provided by this utility model.
[0018] Legend:
[0019] 1. Main body mechanism; 11. Lower mold; 12. Upper mold;
[0020] 2. Clamping mechanism; 21. Storage plate; 22. Damping rod; 23. Fixing ring; 24. Rotating rod; 25. Rotating shaft; 26. Slider; 27. Slide rail block; 28. Moving column; 29. Clamping ring; 201. Connecting plate;
[0021] 3. Fixing mechanism; 31. Threaded post; 32. Throttle; 33. Flexible steel wire rope; 34. Nut; 35. Connecting block. Detailed Implementation
[0022] 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 protection scope of the present utility model.
[0023] Example 1
[0024] like Figure 1 - Figure 5 As shown, this utility model provides a technical solution: an injection mold with anti-leakage function, including: a main body mechanism 1, a clamping mechanism 2 on one side of the main body mechanism 1, a fixing mechanism 3 at the bottom of the clamping mechanism 2, the clamping mechanism 2 including a placement plate 21, a damping rod 22 fixedly connected to the bottom of the placement plate 21, a fixing ring 23 fixedly connected to the bottom of the damping rod 22, two rotating rods 24 rotatably connected to the bottom sides of the placement plate 21 via rotating parts, a rotating shaft 25 rotatably connected to one side of each of the two rotating rods 24, a slider 26 rotatably connected to one side of each of the two rotating shafts 25, a slide rail block 27 on the outer side of each of the two sliders 26, a moving column 28 fixedly connected to one side of each of the two sliders 26, a clamping ring 29 fixedly connected to one side of each of the two moving columns 28, and a connecting plate 201 at the bottom of the fixing ring 23.
[0025] In this embodiment, two damping rods 22 are arranged vertically on the outer side of the fixing ring 23. The top of one damping rod 22 is fixedly connected to the bottom of the shelf 21. Pressing the shelf 21 downwards will cause the damping rod 22 to move slowly downwards. The bottom of the other damping rod 22 is fixedly connected to the top of the connecting plate 201. The damping rod 22 adopts a gas-liquid damping cylinder structure with two built-in pistons for shock absorption. Pushing the connecting plate 201 upwards will cause it to move slowly upwards. Two rotating rods 24 are rotatably connected to the bottom sides of the shelf 21 through rotating parts. A rotating shaft 25 is rotatably connected to one side of each of the two rotating rods 24. Both rotating shafts 25 pass through the interior of the slider 26 and are connected to the slider 26. 6. Internal rotating connection: Both sliders 26 are slidably connected to slide rail blocks 27 on their outer sides. One side of the slide rail block 27 is fixedly connected to one side of the upper mold 12. The slide rail block 27 has a sliding groove inside. The outer side of the slider 26 is slidably connected to the sliding groove inside the slide rail block 27. The height of the slider 26 is higher than the grooves on both sides of the slide rail block 27 to ensure that the slider 26 only slides inside the slide rail block 27 and will not fall out. A movable column 28 is fixedly connected to one side of the slider 26. A fixed ring 23 has a sliding groove at the corresponding position of the movable column 28. The movable column 28 is slidably connected to the inside of the fixed ring 23 through the sliding groove. A clamping device is fixedly connected to the side of the movable column 28 away from the slider 26. The inner side of the retaining ring 29 and the fixing ring 23 has a corresponding receiving groove at the position of the clamping ring 29. The clamping ring 29 is slidably connected to the inside of the fixing ring 23 through the receiving groove. The left and right sliding of the slider 26 will cause the moving column 28 and the clamping ring 29 to move left and right. One side of each of the two rotating shafts 25 is slidably connected to a rotating rod 24. The two rotating rods 24 are rotatably connected to the top of the connecting plate 201 through a rotating component. The four rotating rods 24 cause the placement plate 21 and the connecting plate 201 to be linked. The outer side of the clamping ring 29 is in contact with the injection nozzle. When the injection nozzle shakes, it will cause the clamping ring 29 to move to the right. The movement of the clamping ring 29 to the right will drive the moving column 28 to the right. The movement of the moving column 28 to the right will drive the slider 26, which will move to the right inside the slide block 27. The movement of the slider 26 to the right will pull the two rotating rods 24 at the top and bottom to the center. The two rotating rods 24 will pull the shelf 21 and the connecting plate 201 on one side to the center. The bottom of the shelf 21 and the top of the connecting plate 201 are equipped with damping rods 22. The damping rods 22 will slow down the movement between the shelf 21 and the connecting plate 201, thereby reducing the vibration amplitude of the injection tube opening inside the fixing ring 23, reducing the gap between the injection tube opening and the injection port, preventing excessive material leakage from the injection port, and keeping the leakage range within a controllable range.
[0026] Example 2
[0027] like Figure 1 - Figure 5As shown, the fixing mechanism 3 includes a threaded post 31, a throttle 32 is fixedly connected to one side of the threaded post 31, a flexible steel wire rope 33 is drivenly connected to the outside of the threaded post 31, a nut 34 is provided at one end of the flexible steel wire rope 33, and a connecting block 35 is fixedly connected to the end of the flexible steel wire rope 33 away from the nut 34.
[0028] In this embodiment, one side of the threaded post 31 is internally threaded to one side of the upper mold 12, and one side of the flexible steel wire rope 33 is fixedly connected to the nut 34. The flexible steel wire rope 33 is made of high-strength steel. One side of the nut 34 is threaded to the outer side of the threaded post 31. By rotating the nut 34 with a tool, the nut 34 can firmly fix the flexible steel wire rope 33, preventing the flexible steel wire rope 33 from shifting or loosening in subsequent operations. The side of the flexible steel wire rope 33 away from the nut 34 is fixedly connected to the bottom of the connecting block 35, and the top of the connecting block 35... The part is fixedly connected to the bottom of the connecting plate 201. Turning the handle 32 will cause the threaded column 31 to rotate and move into the mold 12. The rotation of the threaded column 31 will wind the flexible steel wire rope 33 into the outer spiral groove, so that the flexible steel wire rope 33 pulls the connecting block 35 downward. The connecting block 35 then drives the connecting plate 201 to move downward. It should be noted that at this time, the nut 34 will not hinder the normal rotation of the threaded column 31, and can also prevent the threaded column 31 from rotating too much, so as to cause deformation of the mechanism, thereby increasing the service life of the mechanism.
[0029] Working principle: First, connect and fix the lower mold 11 and the upper mold 12. Then, connect the injection nozzle to the injection port. Next, screw the nut 34 at one end of the flexible steel wire rope 33 into the outer hole of the threaded column 31. Rotate the handle 32 to pull the flexible steel wire rope 33 downward to tighten the connecting plate 201. The connecting plate 201 will drive the rotating rods 24 on both sides of the top to move downward. The rotating rods 24 on both sides will cause the angle of the rotating shaft 25 connected on one side to change and move to the left. The leftward movement of the rotating shaft 25 will drive the slider 26 to move to the left. The slider 26 will then drive the moving column 28 to move to the left. The moving column 28 will push the clamping ring 29 to move outward. At this time, the outer sides of the clamping rings 29 on both sides simultaneously contact the outer side of the injection nozzle. As the nut 34 rotates continuously, the clamping force of the outer side of the clamping ring 29 on the injection nozzle increases continuously. At this time, the vibration generated by the injection molding process will cause the injection nozzle to shake, causing the clamping rings on both sides to move outward. The clamping ring 29 moves to the right, which drives the moving column 28 to move to the right. The moving column 28 then moves to the right, pushing the slider 26. The slider 26 is internally connected to a rotating shaft 25. Two rotating rods 24 connected to both sides of the rotating shaft 25 pull towards the center, causing the placement plate 21 and the connecting plate 201 to move towards the center. At this time, the damping rod 22 will slowly retract, slowing down the movement of the placement plate 21 and the connecting plate 201 towards the center. Due to the interaction force, the slider 26 moves to the right at a slower speed, which slows down the movement of the clamping rings 29 on both sides of the injection nozzle, thereby reducing the shaking between the injection nozzles. At this time, the flexible steel wire rope 33 below will tighten the connecting plate 201 again and move it downward, causing the clamping rings 29 on both sides to clamp the injection nozzle again, waiting for the next vibration. This provides constant buffer protection for the injection nozzle to prevent excessive leakage of the injection plastic and keep the leakage range within a controllable range.
[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. An injection mold with anti-leakage function, characterized in that, include: The main body mechanism (1) has a clamping mechanism (2) on one side and a fixing mechanism (3) at the bottom of the clamping mechanism (2). The clamping mechanism (2) includes a shelf (21). A damping rod (22) is fixedly connected to the bottom of the shelf (21). A fixing ring (23) is fixedly connected to the bottom of the damping rod (22). Two rotating rods (24) are rotatably connected to the bottom sides of the shelf (21) via rotating parts. A rotating shaft (25) is rotatably connected to one side of each of the two rotating rods (24). A slider (26) is rotatably connected to one side of each of the two rotating shafts (25). A slide block (27) is provided on the outer side of each of the two sliders (26). A moving column (28) is fixedly connected to one side of each of the two sliders (26). A clamping ring (29) is fixedly connected to one side of each of the two moving columns (28). A connecting plate (201) is provided at the bottom of the fixing ring (23).
2. The injection mold with anti-leakage function according to claim 1, characterized in that: The fixing mechanism (3) includes a threaded post (31), a throttle (32) is fixedly connected to one side of the threaded post (31), a flexible steel wire rope (33) is driven to the outside of the threaded post (31), a nut (34) is provided at one end of the flexible steel wire rope (33), and a connecting block (35) is fixedly connected to the end of the flexible steel wire rope (33) away from the nut (34).
3. The injection mold with anti-leakage function according to claim 1, characterized in that: The main body mechanism (1) includes a lower mold (11), and an upper mold (12) is provided on one side of the lower mold (11).
4. The injection mold with anti-leakage function according to claim 1, characterized in that: Two rotating rods (24) are rotatably connected to one side of the two sliders (26). One end of the two rotating rods (24) is rotatably connected to the top two sides of the connecting plate (201) through a rotating component. The outer side of the two moving columns (28) is slidably connected to the inside of the fixed ring (23). The outer side of the two clamping rings (29) is slidably connected to the inside of the fixed ring (23).
5. An injection mold with anti-leakage function according to claim 2, characterized in that: The top of the connecting block (35) is fixedly connected to the bottom side of the connecting plate (201), the side of the threaded column (31) away from the throttle (32) is threadedly connected to the side of the upper mold (12), and the side of the nut (34) is threadedly connected to the outer side of the threaded column (31).
6. The injection mold with anti-leakage function according to claim 1, characterized in that: One side of each of the two slide blocks (27) is fixedly connected to one side of the upper mold (12), and one side of the fixing ring (23) is fixedly connected to one side of the upper mold (12).