A modular, easy-to-maintain plastic mold frame
The modular mold frame fixing and limiting mechanism solves the problem of cumbersome mold frame assembly and disassembly, achieving stable mold fixing and convenient maintenance, and improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIUHE JINGWEI INJECTION MOLDING TECHNOLOGY (SHENZHEN) CO LTD
- Filing Date
- 2025-07-14
- Publication Date
- 2026-06-30
AI Technical Summary
The existing mold frame is cumbersome to fix with bolts, and it is inconvenient to disassemble and reassemble when damaged, which makes mold maintenance difficult and reduces production efficiency.
It adopts a split design, including a fixing mechanism and a limiting mechanism. The mold is fixed by bolts and abutments. The clamping plate and stop are easily disassembled by the limiting mechanism to achieve stable fixing and convenient maintenance of the mold frame. The guide groove and guide block ensure the alignment of the mold frame, and the rubber positioning block improves the fit and stability.
It enables convenient fixing and stable support of molds, simplifies the mold assembly and maintenance process, and improves production efficiency.
Smart Images

Figure CN224426668U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of mold frame technology, and in particular relates to a split-type easy-to-maintain plastic mold frame. Background Technology
[0002] The mold frame is a semi-finished product or basic frame of the mold, composed of various steel plates and parts. It provides support, positioning and cooling functions for the forming part of the mold, and directly affects the accuracy, production efficiency and life of the mold.
[0003] The problem with the above technology is that during the use of the mold, it is necessary to fix and support the mold through the mold frame to make the mold more stable during use. However, most existing mold frames are fixed by bolts, which is cumbersome to operate. When damaged, it is not easy to disassemble and reassemble, and maintenance is relatively inconvenient, which reduces the production efficiency of the mold. Utility Model Content
[0004] In view of the problems existing in the prior art, this utility model provides a split-type easy-maintain plastic mold frame that can overcome or at least partially solve the above problems.
[0005] This utility model is implemented as follows: a split-type easy-to-maintain plastic mold frame includes a base plate, a movable groove is provided on the top of the base plate, a movable block is slidably connected to the inner wall of the movable groove, a clamping plate is fixedly connected to the top of the movable block, a fixing mechanism is provided inside the base plate, and a limit mechanism is provided inside the clamping plate.
[0006] To facilitate the fixing of the lower and upper molds and for easy maintenance, the fixing mechanism preferably includes a bolt threaded to the inner wall of the base plate. The left end of the bolt passes through one side of the base plate and extends into the inner cavity of the moving groove, and is rotatably connected to a stop block via a bearing. One side of the stop block abuts against the moving block. When the bolt is rotated, the bolt pushes the stop block to move closer to the moving block, so that one side of the stop block presses tightly against the moving block, thereby fixing the position of the moving block in the moving groove and indirectly fixing the lower and upper molds. Disassembly is convenient during maintenance; simply reverse the bolt to loosen the moving block and remove the clamping plate.
[0007] To limit the vertical movement of the mold frame and facilitate its replacement or maintenance, the limiting mechanism preferably includes a sliding hole formed in the inner wall of the clamping plate. A stop block is slidably connected to the inner wall of the sliding hole. One side of the stop block is inclined and extends through the sliding hole to the outer side of the clamping plate. A spring is fixedly connected to the other side of the stop block, and the other end of the spring is fixedly connected to the sliding hole. A pull rod is slidably connected to the inner wall of the clamping plate. One end of the pull rod passes through one side of the clamping plate and extends into the inner cavity of the sliding hole, where it is fixedly connected to the stop block. When the upper mold frame moves down along the guide groove via the guide block, the inclined surface is pressed, causing the stop block to retract into the sliding hole. The spring is compressed, and after the positioning block is inserted into the positioning hole, the side of the upper mold frame no longer contacts the stop block. The spring returns to its original position, pushing the stop block to extend and lock the top of the upper mold frame, thus limiting its vertical movement. Pulling the pull rod causes the stop block to retract, releasing the limiting mechanism, and the upper mold frame can be removed. This operation is convenient and facilitates the replacement or maintenance of the mold frame.
[0008] To improve the accuracy of mold closing between the upper and lower mold frames, preferably, the surface of the clamping plate is provided with a guide groove, the inner wall of the guide groove is slidably connected with a guide block, one side of the guide block is fixedly connected to the upper mold frame, the bottom of the upper mold frame is provided with a lower mold frame, the bottom of the lower mold frame is in contact with the base plate, when the upper mold frame moves down, the guide block slides along the guide groove to ensure that the upper mold frame and the lower mold frame are vertically aligned and to avoid misalignment.
[0009] In order to limit the front and rear movement of the upper mold frame and the lower mold frame, preferably, a positioning block is fixedly connected to the bottom of the upper mold frame, and a positioning hole is opened on the top of the lower mold frame. The surface of the positioning block is slidably connected to the inner wall of the positioning hole. The positioning block can limit the front and rear movement of the upper mold frame and the lower mold frame by inserting it into the positioning hole on the top of the lower mold frame.
[0010] In order to effectively fix the mold, preferably, mold grooves are provided on the inner sides of both the upper mold frame and the lower mold frame. The mold grooves on the inner sides of the upper mold frame and the lower mold frame form a complete cavity after the mold is closed, which can effectively fix the mold.
[0011] To improve the fit between the upper and lower mold frames, the positioning block is preferably made of rubber. The rubber's elastic deformation allows it to fit tightly against the inner wall of the positioning hole, while the friction of the rubber makes the fit between the upper and lower mold frames more stable.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] This utility model allows for convenient fixing of the lower and upper molds via a fixing mechanism. Disassembly is easy during maintenance; simply reverse the bolts to loosen the moving block and remove the clamping plate. A limiting mechanism limits the mold frame's vertical movement; pulling the pull rod retracts the stop block, releasing the limit and allowing the upper mold frame to be removed. This convenient operation facilitates mold frame replacement and maintenance. It solves the problem that existing mold frames, mostly fixed with bolts, require cumbersome procedures, are difficult to disassemble and reassemble when damaged, and are inconvenient to maintain, thus reducing the efficiency of mold production. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the main three-dimensional structure provided in an embodiment of the present utility model;
[0015] Figure 2 This is a schematic diagram of the main body cross-sectional structure provided in an embodiment of this utility model;
[0016] Figure 3 This is provided by the embodiment of the present utility model. Figure 2 Enlarged view of point A in the middle;
[0017] Figure 4 This is provided by the embodiment of the present utility model. Figure 2 Enlarged view of point B in the middle.
[0018] In the diagram: 1. Base plate; 2. Moving groove; 3. Moving block; 4. Clamping plate; 5. Fixing mechanism; 501. Bolt; 502. Abutment block; 6. Limiting mechanism; 601. Sliding hole; 602. Stop block; 603. Spring; 604. Pull rod; 7. Guide groove; 8. Guide block; 9. Positioning block; 10. Positioning hole; 11. Upper mold frame; 12. Lower mold frame; 13. Mold groove. Detailed Implementation
[0019] To further understand the invention content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.
[0020] The structure of this utility model will now be described in detail with reference to the accompanying drawings.
[0021] like Figures 1 to 4 As shown in the figure, the present invention provides a split-type easy-maintain plastic mold frame, including a base plate 1, a movable groove 2 is provided on the top of the base plate 1, a movable block 3 is slidably connected to the inner wall of the movable groove 2, a clamping plate 4 is fixedly connected to the top of the movable block 3, a fixing mechanism 5 is provided inside the base plate 1, and a limit mechanism 6 is provided inside the clamping plate 4.
[0022] To facilitate the fixing of the lower and upper molds and for easy maintenance, the fixing mechanism 5 includes a bolt 501 threaded to the inner wall of the base plate 1. The left end of the bolt 501 passes through one side of the base plate 1 and extends into the inner cavity of the moving groove 2, and is rotatably connected to a stop block 502 via a bearing. One side of the stop block 502 abuts against the moving block 3. When the bolt 501 is rotated, the bolt 501 pushes the stop block 502 to move closer to the moving block 3, so that one side of the stop block 502 presses tightly against the moving block 3, thereby fixing the position of the moving block 3 in the moving groove 2 and indirectly fixing the lower and upper molds. Disassembly is convenient during maintenance; simply unscrew the bolt 501 to loosen the moving block 3 and remove the clamping plate 4.
[0023] To limit the vertical movement of the mold frame and facilitate its replacement or maintenance, the limiting mechanism 6 includes a sliding hole 601 formed in the inner wall of the clamping plate 4. A stop block 602 is slidably connected to the inner wall of the sliding hole 601. One side of the stop block 602 is inclined, and one side extends through the sliding hole 601 to the outer side of the clamping plate 4. A spring 603 is fixedly connected to the other side of the stop block 602, and the other end of the spring 603 is fixedly connected to the sliding hole 601. A pull rod 604 is slidably connected to the inner wall of the clamping plate 4, and one end of the pull rod 604 passes through one side of the clamping plate 4 and extends to... The inner cavity of the sliding hole 601 is fixedly connected to the stop block 602. When the upper mold frame 11 moves down along the guide groove 7 through the guide block 8, the inclined surface is pressed, causing the stop block 602 to retract into the sliding hole 601. The spring 603 is compressed, and after the positioning block 9 is inserted into the positioning hole 10, the side of the upper mold frame 11 no longer contacts the stop block 602. The spring 603 resets and pushes the stop block 602 to extend and lock the top of the upper mold frame 11, thereby achieving upper and lower limit. Pulling the pull rod 604 causes the stop block 602 to retract, releasing the limit, and the upper mold frame 11 can be taken out. The operation is convenient and facilitates the replacement or maintenance of the mold frame.
[0024] To improve the accuracy of mold closing between the upper mold frame 11 and the lower mold frame 12, a guide groove 7 is provided on the surface of the clamping plate 4. A guide block 8 is slidably connected to the inner wall of the guide groove 7. The upper mold frame 11 is fixedly connected to one side of the guide block 8. The lower mold frame 12 is provided at the bottom of the upper mold frame 11. The bottom of the lower mold frame 12 contacts the base plate 1. When the upper mold frame 11 moves down, the guide block 8 slides along the guide groove 7 to ensure that the upper mold frame 11 and the lower mold frame 12 are vertically aligned and to avoid misalignment.
[0025] In order to limit the front and rear movement of the upper mold frame 11 and the lower mold frame 12, a positioning block 9 is fixedly connected to the bottom of the upper mold frame 11, and a positioning hole 10 is opened on the top of the lower mold frame 12. The surface of the positioning block 9 is slidably connected to the inner wall of the positioning hole 10. The positioning block 9 can be inserted into the positioning hole 10 on the top of the lower mold frame 12 to limit the front and rear movement of the upper mold frame 11 and the lower mold frame 12.
[0026] In order to effectively fix the mold, mold grooves 13 are provided on the inner side of both the upper mold frame 11 and the lower mold frame 12. The mold grooves 13 on the inner side of the upper mold frame 11 and the lower mold frame 12 form a complete cavity after the mold is closed, which can effectively fix the mold.
[0027] To improve the fit between the upper mold frame 11 and the lower mold frame 12, the positioning block 9 is made of rubber. The rubber's elastic deformation allows it to fit tightly against the inner wall of the positioning hole 10, while the friction of the rubber makes the fit between the upper mold frame 11 and the lower mold frame 12 more stable.
[0028] The working principle of this utility model:
[0029] In use, the lower mold frame 12 is placed at the top center of the base plate 1. Then, the two moving blocks 3 on both sides are moved to the lower mold frame 12. The clamping blocks on the moving blocks 3 move synchronously. By rotating the bolt 501, the bolt 501 pushes the abutment block 502 towards the moving block 3, so that one side of the abutment block 502 presses tightly against the moving block 3. The clamping plate 4 clamps the lower mold frame 12 to fix the position of the moving block 3 in the moving groove 2, thereby indirectly fixing the lower mold and the upper mold. Disassembly is convenient during maintenance; simply reverse the bolt 501. Release the moving block 3 to remove the clamping plate 4. When the upper mold frame 11 moves down along the guide groove 7 via the guide block 8, the inclined surface is pressed, causing the stop block 602 to retract into the sliding hole 601. The spring 603 is compressed, and after the positioning block 9 is inserted into the positioning hole 10, the side of the upper mold frame 11 no longer contacts the stop block 602. The spring 603 resets and pushes the stop block 602 to extend and lock the top of the upper mold frame 11, thus achieving upper and lower limit. Pull the pull rod 604 to drive the stop block 602 to retract, release the limit, and the upper mold frame 11 can be taken out. The operation is convenient and facilitates the replacement or maintenance of the mold frame.
[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0031] 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 way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can exercise their rights without departing from the scope of the present utility model.
Claims
1. A split-type easy-maintain plastic mold frame, comprising a base plate (1), characterized in that: The top of the base plate (1) is provided with a moving groove (2), the inner wall of the moving groove (2) is slidably connected with a moving block (3), the top of the moving block (3) is fixedly connected with a clamping plate (4), the base plate (1) is provided with a fixing mechanism (5), and the clamping plate (4) is provided with a limiting mechanism (6).
2. The modular, easy-to-maintain plastic mold frame as described in claim 1, characterized in that: The fixing mechanism (5) includes a bolt (501) threaded to the inner wall of the base plate (1). The left end of the bolt (501) passes through one side of the base plate (1) and extends into the inner cavity of the moving groove (2), and is rotatably connected to a stop block (502) via a bearing. One side of the stop block (502) abuts against the moving block (3).
3. The modular, easy-to-maintain plastic mold frame as described in claim 1, characterized in that: The limiting mechanism (6) includes a sliding hole (601) opened in the inner wall of the clamping plate (4). A stop (602) is slidably connected to the inner wall of the sliding hole (601). One side of the stop (602) is set with an inclined surface. One side of the stop (602) extends to the outer side of the clamping plate (4) through the sliding hole (601). A spring (603) is fixedly connected to the other side of the stop (602). The other end of the spring (603) is fixedly connected to the sliding hole (601). A pull rod (604) is slidably connected to the inner wall of the clamping plate (4). One end of the pull rod (604) passes through one side of the clamping plate (4) and extends to the inner cavity of the sliding hole (601) and is fixedly connected to the stop (602).
4. The modular, easy-to-maintain plastic mold frame as described in claim 3, characterized in that: The surface of the clamping plate (4) is provided with a guide groove (7), and a guide block (8) is slidably connected to the inner wall of the guide groove (7). An upper mold frame (11) is fixedly connected to one side of the guide block (8), and a lower mold frame (12) is provided at the bottom of the upper mold frame (11). The bottom of the lower mold frame (12) is in contact with the base plate (1).
5. A split-type easy-maintain plastic mold frame as described in claim 4, characterized in that: The bottom of the upper mold frame (11) is fixedly connected to a positioning block (9), and the top of the lower mold frame (12) is provided with a positioning hole (10). The surface of the positioning block (9) is slidably connected to the inner wall of the positioning hole (10).
6. The modular, easy-to-maintain plastic mold frame as described in claim 5, characterized in that: The inner sides of both the upper mold frame (11) and the lower mold frame (12) are provided with mold grooves (13).
7. A split-type easy-maintain plastic mold frame as described in claim 6, characterized in that: The positioning block (9) is made of rubber.