Plastic mold capable of quickly disassembling and assembling insert
The design of the lifting assembly and insert assembly solves the problem of inconvenient insert installation in existing plastic molds, enabling rapid adjustment and installation of inserts to meet the needs of different insertion depths.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-12
- Publication Date
- 2026-04-07
AI Technical Summary
The connecting rods of inserts in existing plastic molds cannot be adjusted, making installation inconvenient when facing different insertion depths.
By employing a combination of lifting components and insert components, and through the design of a telescopic plate, connecting ring, magnetic block, and scale, the insert can be quickly adjusted and installed.
It enables quick assembly and disassembly of inserts, adapts to different insertion depths, and improves the convenience and efficiency of installation.
Smart Images

Figure CN224089433U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic mold technology, specifically a plastic mold with quick-assembly and disassembly of inserts. Background Technology
[0002] Plastic molds are a general term for combination molds used in compression molding, extrusion molding, injection molding, blow molding, and low-foaming molding. They are mainly composed of punches, dies, and auxiliary molding systems that work together to produce a series of plastic parts of different shapes and sizes. Plastic molds are the mother of industry; new product launches always involve plastics, therefore, plastic molds play a vital role in industrial production. Inserts are a general term, but in the context of mold making, they specifically refer to irregular mold components used to be embedded in the mold, serving to fix the template and fill the space between it. Inserts can be square, round, or sheet-like, and like all mold components, they require very high precision. Generally, they are not readily available as finished products and are made to order according to the mold's needs. During use, inserts are fixedly installed in the mold slots of the upper and lower molds.
[0003] Patent CN214687453U discloses a plastic mold with quick-release inserts. The mold consists of a lower mold, upper mold, mold cavity, mounting hole, insert, U-shaped frame, moving plate, connecting rod, locking block, first rectangular groove, second rectangular groove, screw, rectangular rod, sprocket, chain, locking hole, first rectangular hole, L-shaped locking rod, limiting hole, limiting block, and spring. When the length of the insert extending into the mold cavity needs adjustment, rotating the T-shaped knob forward rotates the left sprocket. The left sprocket, through the chain, drives the right sprocket to rotate. The rotation of the sprockets drives the corresponding screw to rotate, which in turn moves the corresponding rectangular rod downwards. Both rectangular rods simultaneously move the moving plate downwards. The moving plate, through multiple connecting rods, moves multiple inserts downwards into their respective mold cavities. Once the insertion length of the insert is adjusted, rotating the T-shaped knob stops, completing the adjustment.
[0004] In the above technical solution, the connecting rod of the insert cannot be adjusted, which makes installation inconvenient when dealing with inserts of different insertion depths. It can only achieve the installation of inserts on one plane and is not easy to adjust. Utility Model Content
[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a plastic mold for quick assembly and disassembly of inserts to solve the problems mentioned in the background. This utility model has a novel structure. Through the cooperation of the lifting component and the insert component, inserts of different insertion depths can be adjusted and then inserted into the insertion hole together to complete the installation. Furthermore, it is easy to remove the inserts from the top through the outer moving frame. It is convenient to use, adjust, and install.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a plastic mold for quick assembly and disassembly of inserts, comprising a lower template, the top of which is covered by an upper template, and the surface of the upper template having multiple insertion holes. Insert assemblies are provided inside the insertion holes, each insert assembly comprising an insert body. The insert body is slidably inserted into the insertion hole, and a fixing post is fixedly mounted on the top of the insert body. A connecting ring is slidably fitted onto the surface of the fixing post, and two sets of telescopic plates are mounted on the surface of the connecting ring. The connecting rings of adjacent fixing posts are connected and installed via the telescopic plates. A lifting assembly is provided around the upper template, the lifting assembly comprising a moving frame. The moving frame is slidably mounted around the upper template, and the moving frame has insert plates corresponding to the four sides of the upper template. The insert plates are in contact with the bottom of the telescopic plates.
[0007] Furthermore, the lifting assembly also includes a screw, and the upper template is rotatably mounted on the side of the screw via a bearing seat, with the moving frame threaded onto the surface of the screw.
[0008] Furthermore, a slide is fixed on the surface of the movable frame corresponding to the insert plate, and the insert plate is slidably inserted into the top of the slide.
[0009] Furthermore, the insert assembly also includes a baffle, connecting rings are fixed on both sides of the bottom of the connecting ring, and the connecting ring contacts the top periphery of the insertion hole. A turntable is rotatably mounted on the bottom of the connecting ring, and the turntable is slidably sleeved on the surface of the fixed post.
[0010] Furthermore, two convex strips are symmetrically fixed on the surface of the fixed column, the turntable is snapped onto the convex strips, two magnet blocks are symmetrically fixed inside the connecting ring, and the magnet blocks are magnetically attracted to the convex strips. An opening is provided on one side of the magnet block, and a scale is provided on the surface of the convex strips.
[0011] Furthermore, two connecting rods are symmetrically mounted on the bottom of the turntable via a rotating axis, a sliding frame is fixed to the bottom of the baffle, and a connecting frame is slidably connected inside the sliding frame. A friction block is fixed to the bottom of the connecting frame, and the friction block is in contact with the surface of the fixed column by pressure.
[0012] Furthermore, a spring is fixed inside the sliding frame, and the other end of the spring is fixedly connected to the connecting frame.
[0013] Furthermore, an annular groove is formed on the outer surface of the connecting ring, and two sliders are slidably installed inside the groove. Both ends of the telescopic plate are rotatably installed with studs, and screw holes are fixed on the outer surface of the sliders. The telescopic plate is fixedly connected to the two sliders through the studs.
[0014] The beneficial effects of this utility model are:
[0015] 1. This utility model, through the buffer and slider connection between each connecting ring and the slider connection between the telescopic plate and the two connecting rings, allows the telescopic plate to connect the two sets of connecting rings and the fixed column at any length and angle, in order to cope with different installation positions.
[0016] 2. According to the position of the insertion hole, the studs at both ends of the telescopic plate are fixedly connected to the sliders of the two sets of connecting rings. Then, the position of the sliders is adjusted along the slide groove. After the multiple sets of connecting rings are connected in an arc shape through the telescopic plate, they are placed on the top of the insertion hole. The baffle limits the position to prevent the connecting rings from falling into the insertion hole.
[0017] 3. In this invention, the two protrusions on both sides of the fixed post are magnetically attracted to the magnet. At this time, the connecting rod drives the connecting frame and friction block to make frictional contact with the surface of the fixed post, thereby keeping the depth of the fixed post and the connecting ring unchanged. According to the different insertion depth requirements of the insert body, the fixed post is rotated to misalign the position of the protrusions with the magnet. At the same time, the turntable rotates, and the connecting rod pushes the connecting frame and friction block to slide outward away from the fixed post, which facilitates the rotation and vertical movement of the fixed post. At this time, the connecting ring is only slidably inserted into the fixed post, which makes it easy to adjust the insertion depth of the insert body according to the scale on the protrusion.
[0018] 4. This utility model uses a movable frame and a screw threaded connection to move vertically. The sliding frame and the insert plate squeeze the bottom of the telescopic plate, causing the telescopic plate to move upward. This makes it easy to remove the insert body that is inserted into the insertion hole. Depending on the position of the connecting plate, the position of the insert plate can be adjusted along the top of the sliding frame so that the insert plate can be inserted into the bottom of the telescopic plate. This makes it easy to remove the insert body from the insertion hole by pushing upward.
[0019] 5. Compared with the prior art, this utility model adjusts inserts of different insertion depths through the cooperation of the lifting component and the insert component, and then inserts them into the socket together to complete the installation. When taking them out, they can also be easily taken out from the top by the outer moving frame. It is convenient to use, and easy to adjust and install. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of a plastic mold for quick-assembly and disassembly of inserts according to the present invention.
[0021] Figure 2 This is a schematic diagram of the lifting component structure of a plastic mold with quick-release inserts according to the present invention;
[0022] Figure 3 This is a schematic diagram showing the connection between the insert assembly and the lifting assembly of a plastic mold with a quick-release insert according to this utility model.
[0023] Figure 4 This is a schematic diagram of the insert assembly structure of a plastic mold with a quick-release insert according to the present invention;
[0024] Figure 5 This is a schematic diagram showing the connection between the two ends of the telescopic plate of a plastic mold with a quick-release insert according to this utility model.
[0025] Figure 6 This is a schematic diagram of the bottom structure of the connecting ring of a plastic mold for quick-assembly and disassembly of inserts according to the present invention.
[0026] Figure 7 This is a schematic diagram showing the connection between the fixing post and the connecting ring of a plastic mold for quick-assembly and disassembly of inserts according to this utility model.
[0027] Figure 8 This is a schematic diagram showing the separation of the fixing post and connecting ring of a plastic mold for quick-assembly and disassembly of inserts according to this utility model.
[0028] In the diagram: 1. Lower template; 2. Upper template; 21. Insertion hole; 3. Lifting assembly; 31. Moving frame; 32. Screw; 33. Slide carriage; 34. Insert plate; 4. Inlay assembly; 41. Inlay body; 42. Fixed column; 43. Protrusion; 44. Connecting ring; 45. Telescopic plate; 46. Baffle; 47. Ring groove; 48. Slider; 49. Screw hole; 410. Screw stud; 411. Turntable; 412. Connecting rod; 413. Slide carriage; 414. Spring; 415. Connecting frame; 416. Friction block; 417. Magnet block. Detailed Implementation
[0029] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0030] Please see Figures 1 to 8This utility model provides a technical solution: a plastic mold for quick assembly and disassembly of inserts, including a lower template 1, the top of which is covered by an upper template 2, and the surface of the upper template 2 is provided with a plurality of insertion holes 21. Insert assemblies 4 are provided inside the insertion holes 21, the insert assembly 4 including an insert body 41, the insert body 41 being slidably inserted into the insertion hole 21, and a fixing post 42 being fixedly installed on the top of the insert body 41. A connecting ring 44 is slidably sleeved on the surface of the fixing post 42, and two sets of telescopic plates 45 are installed on the surface of the connecting ring 44. The connecting rings 44 of adjacent fixing posts 42 are connected by the telescopic plates 45. The upper template 2 is provided with a lifting assembly 3 on its periphery. The lifting assembly 3 includes a movable frame 31. The movable frame 31 is slidably installed on the periphery of the upper template 2, and the movable frame 31 is provided with insert plates 34 on the four sides of the upper template 2. The insert plates 34 are in contact with the bottom of the telescopic plate 45. When using the device, the insert body 41 is fixedly connected to the fixed column 42 and installed inside the connecting ring 44, inserted into the insertion hole 21. According to the position of the insertion hole 21, the adjacent connecting rings 44 are connected through the telescopic plate 45 to form a whole. When it is necessary to disassemble and remove the insert body 41, the insert body 41 is taken out from the insertion hole 21 by the lifting assembly 3.
[0031] In this embodiment, the lifting assembly 3 further includes a screw 32. The screw 32 is rotatably mounted on the side of the upper template 2 via a bearing seat, and the moving frame 31 is threaded onto the surface of the screw 32. A slide 33 is fixed on the surface of the moving frame 31 corresponding to the insert plate 34, and the insert plate 34 is slidably inserted into the top of the slide 33. When the screw 32 is rotated, the moving frame 31 and the screw 32 move vertically in threaded engagement. The slide 33 and the insert plate 34 press against the bottom of the telescopic plate 45, causing the telescopic plate 45 to move upward, making it easier to remove the insert body 41 inserted into the insertion hole 21. Depending on the position of the connecting plate, the position of the insert plate 34 can be adjusted along the top of the slide 33 so that the insert plate 34 can be inserted into the bottom of the telescopic plate 45, making it easier to remove the insert body 41 from the insertion hole 21 by pushing upward.
[0032] In this embodiment, the insert assembly 4 further includes a baffle 46. Connecting rings 44 are fixed on both sides of the bottom of the connecting ring 44, and the connecting rings 44 contact the top periphery of the insertion hole 21. A turntable 411 is rotatably mounted on the bottom of the connecting ring 44, and the turntable 411 is slidably sleeved on the surface of the fixing post 42. Two protrusions 43 are symmetrically fixed on the surface of the fixing post 42, and the turntable 411 is engaged with the protrusions 43. Two magnet blocks 417 are symmetrically fixed inside the connecting ring 44, and the magnet blocks 417 are magnetically attracted to the protrusions 43. An opening is provided on one side of each magnet block 417. A scale is provided on the surface of the protrusions 43. Two connecting rods 412 are symmetrically mounted on the bottom of the turntable 411 via a rotating shaft. The bottom of the baffle 46 is fixed with a sliding frame 413, and a connecting frame 415 is slidably connected inside the sliding frame 413. A friction block 416 is fixed at the bottom of the connecting frame 415, and the friction block 416 is in contact with the surface of the fixed column 42. A spring 414 is fixed inside the sliding frame 413, and the other end of the spring 414 is fixedly connected to the connecting frame 415. An annular groove 47 is formed on the outer surface of the connecting ring 44, and two sliders 48 are slidably installed inside the groove. Both ends of the telescopic plate 45 are rotatably mounted with studs 410. A screw hole 49 is fixed on the outer surface of the slider 48, and the telescopic plate 45 is fixedly connected to the two sliders 48 through the studs 410. The insertion hole 21 of the upper template 2 can be opened at any position. In the diagram, for ease of observation, the equidistant setting is actually achieved through the buffer connection between each connecting ring 44 and the slider 48, as well as the connection between the telescopic plate 45 and the slider 48 of the two connecting rings 44. The telescopic plate 45 can connect the two sets of connecting rings 44 and the fixing post 42 at any length and angle to accommodate different installation positions. Before installation, according to the position of the insertion hole 21, the studs 410 at both ends of the telescopic plate 45 are fixedly connected to the sliders 48 of the two sets of connecting rings 44. Then, the position of the sliders 48 is adjusted along the groove. After multiple sets of connecting rings 44 are connected in an arc shape through the telescopic plate 45, they are placed on top of the insertion hole 21. The baffle 46 limits the movement to prevent the connecting rings 44 from falling into the insertion hole 21. The fixing post 42 is inserted into the connecting ring 44. Initially, the two protrusions 43 on both sides of the fixed post 42 are magnetically attracted to the magnet 417. At this time, the connecting rod 412 drives the connecting frame 415 and the friction block 416 to make frictional contact with the surface of the fixed post 42, thereby keeping the depth length of the fixed post 42 and the connecting ring 44 unchanged. According to the different insertion depth requirements of the insert body 41, the fixed post 42 is rotated to offset the position of the protrusions 43 from the magnet 417. At the same time, the turntable 411 rotates, and the connecting rod 412 pushes the connecting frame 415 and the friction block 416 to slide outward along the slide frame 413 away from the fixed post 42, which facilitates the rotation and vertical movement of the fixed post 42. At this time, the connecting ring 44 is only slidably inserted into the fixed post 42, which makes it convenient to adjust the insertion depth of the insert body 41 according to the scale on the protrusion 43.
[0033] When using the device, the insert body 41 is fixedly connected to the fixing post 42 and then installed inside the connecting ring 44, inserted into the insertion hole 21. Through the buffer connection between each connecting ring 44 and the slider 48, and the connection between the telescopic plate 45 and the slider 48 of the two connecting rings 44, the telescopic plate 45 can connect the two sets of connecting rings 44 and the fixing post 42 at any length and angle. For different installation positions, before installation, according to the position of the insertion hole 21, the studs 410 at both ends of the telescopic plate 45 are connected to the sliders 48 of the two sets of connecting rings 44. Block 48 is fixedly connected, and then the position of slider 48 is adjusted along the slide groove. Multiple sets of connecting rings 44 are connected in an arc shape by telescopic plate 45 and placed on top of the insertion hole 21. The baffle 46 limits the position to prevent the connecting rings 44 from falling into the insertion hole 21. The fixing post 42 is inserted into the connecting ring 44. At first, the two side protrusions 43 of the fixing post 42 are magnetically attracted to the magnet block 417. At this time, the connecting rod 412 drives the connecting frame 415 and the friction block 416 to make frictional contact with the surface of the fixing post 42, thereby keeping the fixing post 42 in contact with the magnet block 417. The length of the connecting ring 44 remains constant. Depending on the insertion depth requirements of the insert body 41, the fixing post 42 is rotated, misaligning the position of the protrusion 43 with the magnet block 417. Simultaneously, the turntable 411 rotates, pushing the connecting frame 415 and friction block 416 outwards along the sliding frame 413 away from the fixing post 42 via the connecting rod 412. This facilitates the rotation and vertical movement of the fixing post 42. At this time, the connecting ring 44 only slides into the fixing post 42, allowing for easy adjustment of the insertion depth of the insert body 41 according to the scale on the protrusion 43. When it is necessary to disassemble and remove the insert body 41, rotate the screw 32, and the moving frame 31 moves vertically in the threaded engagement with the screw 32. Through the compression of the bottom of the telescopic plate 45 by the slide 33 and the insert plate 34, the telescopic plate 45 is moved upward, which makes it easier to remove the insert body 41 inserted into the insertion hole 21. According to the position of the connecting plate, the position of the insert plate 34 can be adjusted along the top of the slide 33 so that the insert plate 34 can be inserted into the bottom of the telescopic plate 45, which makes it easy to remove the insert body 41 from the insertion hole 21 by pushing upward.
[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model.
[0035] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A plastic mold for quick assembly and disassembly of inserts, comprising a lower mold plate (1), characterized in that: The upper template (2) covers the top of the lower template (1), and a plurality of insertion holes (21) are provided on the surface of the upper template (2). An insert assembly (4) is provided inside the insertion hole (21). The insert assembly (4) includes an insert body (41). The insert body (41) is slidably inserted into the insertion hole (21), and a fixing post (42) is fixedly installed on the top of the insert body (41). A connecting ring (44) is slidably sleeved on the surface of the fixing post (42). Two sets of telescopic plates (45) are installed on the surface of the upper template (2). The connecting rings (44) of the adjacent fixed columns (42) are connected and installed through the telescopic plates (45). The upper template (2) is provided with a lifting assembly (3) on its periphery. The lifting assembly (3) includes a moving frame (31). The moving frame (31) is slidably installed on the periphery of the upper template (2), and the moving frame (31) is provided with insert plates (34) on the four sides of the upper template (2). The insert plates (34) are pressed and contacted with the bottom of the telescopic plates (45).
2. The plastic mold for quick-assembly and disassembly of inserts according to claim 1, characterized in that: The lifting assembly (3) also includes a screw (32), the upper template (2) is rotatably mounted on the side of the screw (32) through a bearing seat, and the moving frame (31) is threaded onto the surface of the screw (32).
3. A plastic mold for quick-assembly and disassembly of inserts according to claim 2, characterized in that: The movable frame (31) has a slide (33) fixed on the surface of the corresponding insert plate (34), and the insert plate (34) is slidably inserted into the top of the slide (33).
4. A plastic mold for quick-assembly and disassembly of inserts according to claim 1, characterized in that: The insert assembly (4) also includes a baffle (46), and the bottom sides of the connecting ring (44) are fixed with connecting rings (44), and the connecting ring (44) contacts the top periphery of the insertion hole (21). The bottom of the connecting ring (44) is rotatably mounted with a turntable (411), and the turntable (411) is slidably sleeved on the surface of the fixed post (42).
5. A plastic mold for quick-assembly and disassembly of inserts according to claim 4, characterized in that: Two convex strips (43) are symmetrically fixed on the surface of the fixed column (42). The turntable (411) is snapped onto the convex strips (43). Two magnet blocks (417) are symmetrically fixed inside the connecting ring (44). The magnet blocks (417) are magnetically attracted to the convex strips (43). An opening is provided on one side of the magnet blocks (417). A scale is provided on the surface of the convex strips (43).
6. A plastic mold for quick-assembly and disassembly of inserts according to claim 5, characterized in that: Two connecting rods (412) are symmetrically mounted on the bottom of the turntable (411) via a rotating axis. A sliding frame (413) is fixed to the bottom of the baffle (46), and a connecting frame (415) is slidably connected inside the sliding frame (413). A friction block (416) is fixed to the bottom of the connecting frame (415), and the friction block (416) is in contact with the surface of the fixed column (42).
7. A plastic mold for quick-assembly and disassembly of inserts according to claim 6, characterized in that: A spring (414) is fixed inside the sliding frame (413), and the other end of the spring (414) is fixedly connected to the connecting frame (415).
8. A plastic mold for quick-assembly and disassembly of inserts according to claim 7, characterized in that: The outer surface of the connecting ring (44) is provided with an annular groove (47), and two sliders (48) are slidably installed inside the groove. Both ends of the telescopic plate (45) are rotatably installed with studs (410). The outer surface of the slider (48) is fixed with screw holes (49), and the telescopic plate (45) is fixedly connected to the two sliders (48) through studs (410).