A jig guide mechanism
By introducing a lubricating oil circulation system with a partition and piston structure and a magnetic block buffer design into the mold frame guide mechanism, the problems of insufficient lubrication and wear in the mold frame guide mechanism after long-term use are solved, and the long service life and low-cost operation of the device are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YIXING DINGJIAN MOULD TECH CO LTD
- Filing Date
- 2025-08-20
- Publication Date
- 2026-07-21
AI Technical Summary
The existing mold frame guide mechanism is prone to drying out after long-term use, which increases resistance and leads to a loss of life. In addition, the exposed return spring is prone to wear and is difficult to achieve the ideal return state.
A mold frame guiding mechanism was designed. By setting a baffle and piston structure in the guide groove, the lubricating oil can be recycled. Combined with the design of the reset spring and vertical rod, the lubrication and stability of the guide column are ensured. The magnetic repulsion principle of the magnetic block is used for buffering to reduce wear.
It extends the service life of the device, maintains guiding accuracy, reduces lubricant waste and wear, and lowers production costs.
Smart Images

Figure CN224527862U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of mold frame guiding mechanisms, specifically a mold frame guiding mechanism. Background Technology
[0002] Injection molds are tools for producing plastic products, and also tools for giving plastic products a complete structure and precise dimensions. Before injection molding, the upper and lower molds need to be closed, so the molds need to be guided, thus requiring a mold frame guiding mechanism.
[0003] The prior art patent document CN215845261U provides a mold frame guiding mechanism, including a lower mold frame. The lower mold frame has a circular positioning hole for positioning a guide rod. The circular positioning hole has a transmission groove for sliding a square fixing block. Through the setting of the square fixing block, one end of the square fixing block is fixedly connected to the guide rod through the fixing groove, and the other end is connected to a second connecting rod through a first connecting rod. The second connecting rod is connected to a transmission rack mechanism through a connecting toothed groove. This setting drives the transmission rack mechanism to rotate through an internal motor of the lower mold frame, thereby causing the square fixing block to slide, thereby adjusting the connection relationship between the square fixing block and the fixing groove, achieving the function of quick assembly and disassembly, thus facilitating the installation and disassembly of the entire mold, and making the mold easier to use and maintain. At the same time, through the transmission method of the toothed groove, the self-locking performance is better than the original threaded connection, making the connection more stable and compact.
[0004] Although the device has many beneficial effects, it still has the following problems: the device has few lubrication parts in the guiding process, and the device is prone to drying out after long-term use, which increases resistance and can easily lead to accelerated wear and tear on the device's lifespan. Secondly, the return spring in the device is directly exposed and is prone to wear after long-term use, making it difficult to achieve the ideal state of return. Utility Model Content
[0005] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of this section, the abstract, and the title, and such simplifications or omissions should not be used to limit the scope of this utility model.
[0006] 1. Technical problems to be solved:
[0007] To address the issues mentioned above, such as the device becoming dry and increasing resistance after prolonged use, which accelerates the device's lifespan, and the return spring being directly exposed and prone to wear after long-term use, making it difficult to achieve the ideal return state, this utility model is proposed.
[0008] Therefore, the purpose of this utility model is to provide a mold frame guiding mechanism, which aims to solve the problem that the device is prone to dryness and increased resistance after long-term use, thereby accelerating the wear and tear of the device and minimizing device wear.
[0009] 2. Technical Solution:
[0010] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:
[0011] A mold frame guiding mechanism includes a lower mold frame and an upper mold frame. A guide tube is bolted to the top of the lower mold frame. A guide groove is formed inside the guide tube. A guide post is slidably connected to the inner wall of the guide groove. A partition is provided on the inner wall of the guide groove. An upper oil outlet groove is formed on the surface of the partition. An upper piston is slidably connected to the inner circumference of the partition. An upper clamping plate is fixed to the bottom of the upper piston. A vertical rod is bolted to the bottom of the upper clamping plate. A return spring is sleeved on the outer circumference of the vertical rod. A lower clamping plate is sleeved on the bottom of the return spring. A lower piston is fixed to the bottom of the lower clamping plate. A lower oil outlet groove is formed at the bottom of the partition. An oil cavity is formed on the inner circumference of the guide tube. The lower oil outlet groove, the upper oil outlet groove, and the oil cavity are interconnected, facilitating the circulation of lubricating oil and helping to better control production costs. The structural design of the return spring and the vertical rod facilitates the return of the guide post.
[0012] As a preferred embodiment of the mold frame guiding mechanism of this utility model, the top of the lower mold frame is provided with a sliding groove, the inner wall of the sliding groove is slidably connected with a slider, the number of sliders is multiple and symmetrically distributed, the top of the slider is provided with a groove, the inner wall of the groove is connected with an installation strip through a damping bearing, a magnetic block one is fixed on one side of the slider, and a magnetic block two is fixed on one side of the slider.
[0013] In a preferred embodiment of the mold frame guiding mechanism of this utility model, a guide rod is fixedly provided at the bottom of the upper mold frame, and a mounting block is bolted to the bottom of the guide rod. A mounting groove is provided on the side wall of the mounting block, and a mounting strip is connected to the inner wall of the mounting groove through a damping bearing.
[0014] In a preferred embodiment of the mold frame guiding mechanism of this utility model, there are multiple guide tubes, which are arranged in a linearly symmetrical distribution.
[0015] In a preferred embodiment of the mold frame guiding mechanism of this utility model, the top of the guide tube is provided with a vertical groove, and the inner wall of the vertical groove is engaged with a fixing pin.
[0016] In a preferred embodiment of the mold frame guiding mechanism of this utility model, a scraper is embedded in the top of the guide groove, and the inner circumferential wall of the scraper and the outer circumferential wall of the guide post are aligned.
[0017] As a preferred embodiment of the mold frame guiding mechanism of this utility model, the side wall of the slider is connected to a horizontal block by bolts, the inner wall of the slide groove is provided with a horizontal groove, and the inner wall of the horizontal groove is slidably connected to the horizontal block. The structural design of the horizontal block slidably connecting the horizontal groove to the horizontal block facilitates maintaining a good balance effect during the movement of the slider.
[0018] 3. Beneficial effects:
[0019] Compared with the prior art, the beneficial effects of this utility model are:
[0020] This mold frame guiding mechanism works by pressing down on the upper piston, which in turn moves the lower piston downwards. This causes the return spring and vertical rod to be pressed down, which in turn causes the upper piston to descend. This forces the lubricating oil in the guide tube to flow out from the upper oil outlet groove, lubricating the guide column entering the guide groove. This effectively extends the service life of the device and maintains the guiding accuracy. When the mold opens, the upper piston rises, and the scraper removes the lubricating oil from the side wall of the guide column. The lubricating oil falls onto the upper piston and flows back to the oil chamber through the upper oil outlet groove for recycling. This effectively reduces lubricating oil waste, lowers costs, and allows for convenient replenishment of lubricating oil at any time.
[0021] In this type of mold frame guiding mechanism, during the guiding process, the angle of the mounting strip connected by the damping bearing on the inner wall of the mounting groove changes, causing the slider to move in opposite directions on the inner wall of the groove. This facilitates the use of the mutual repulsion principle of the magnetic fields of magnetic block one and magnetic block two to buffer the lower mold frame and upper mold frame during the mold closing process, thus extending the overall service life of the device and effectively reducing unnecessary wear. Attached Figure Description
[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:
[0023] Figure 1 This is a schematic diagram of the overall structure of a mold frame guiding mechanism according to this utility model;
[0024] Figure 2 This is a schematic cross-sectional view of the overall structure of a mold frame guiding mechanism according to this utility model;
[0025] Figure 3 This utility model relates to a mold frame guiding mechanism. Figure 2 A schematic diagram of the structure of section A in the middle;
[0026] Figure 4 This utility model relates to a mold frame guiding mechanism. Figure 2 A schematic diagram of the structure of section B in the middle;
[0027] Figure 5 This utility model relates to a mold frame guiding mechanism. Figure 2 A schematic diagram of the C-section structure;
[0028] Figure 6 This utility model relates to a mold frame guiding mechanism. Figure 2 A schematic diagram of the structure of section D in the middle.
[0029] The following are the labels in the diagram: 1. Lower mold base; 2. Upper mold base; 3. Guide tube; 4. Scraper; 5. Guide post; 6. Guide rod; 7. Upper piston; 8. Lower piston; 9. Upper clamping plate; 10. Lower clamping plate; 11. Vertical rod; 12. Return spring; 13. Upper oil outlet groove; 14. Lower oil outlet groove; 15. Oil cavity; 16. Vertical groove; 17. Fixing pin; 18. Mounting block; 19. Mounting groove; 20. Mounting strip; 21. Sliding block; 22. Groove; 23. Magnetic block one; 24. Magnetic block two; 25. Slide groove; 26. Guide groove; 27. Partition plate. Detailed Implementation
[0030] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0031] This utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not be construed as limiting the scope of protection of this utility model. In actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.
[0032] The orientation or positional relationship indicated in the terminology is based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of describing the present invention and simplifying the description. It is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.
[0033] The term "connection method" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0034] The embodiments of this utility model will now be described in further detail with reference to the accompanying drawings.
[0035] This utility model provides an overall structural diagram of one embodiment of a mold frame guiding mechanism, including:
[0036] Please see Figures 1-6 This utility model provides a technical solution:
[0037] A mold frame guiding mechanism includes a lower mold frame 1 and an upper mold frame 2. A guide tube 3 is bolted to the top of the lower mold frame 1. A guide groove 26 is formed inside the guide tube 3. A guide post 5 is slidably connected to the inner wall of the guide groove 26. A partition 27 is provided on the inner wall of the guide groove 26. An upper oil outlet groove 13 is formed on the surface of the partition 27. An upper piston 7 is slidably connected to the inner circumference of the partition 27. An upper clamping plate 9 is fixed to the bottom of the upper piston 7. A vertical rod 11 is bolted to the bottom of the upper clamping plate 9. A return spring 12 is sleeved on the outer circumference of the vertical rod 11. A lower clamping plate 12 is sleeved on the bottom of the return spring 12. The bottom of the lower plate 10 is fixed with a lower piston 8. The bottom of the partition plate 27 is provided with a lower oil outlet groove 14. The inner circumferential wall of the guide tube 3 is provided with an oil cavity 15. The lower oil outlet groove 14, the upper oil outlet groove 13 and the oil cavity 15 are connected. The upper piston 7 is pressed and drives the lower piston 8 to move downward, so that the return spring 12 and the vertical rod 11 are pressed and drive the upper piston 7 to descend. This squeezes the lubricating oil in the guide tube 3 to flow out from the upper oil outlet groove 13, and lubricates the guide column 5 entering the guide groove 26. This helps to extend the service life of the device and maintain the accuracy of the guide.
[0038] It is worth noting that, in order to perform multiple buffering uses, specifically, a groove 25 is provided on the top of the lower mold frame 1, and a slider 21 is slidably connected to the inner wall of the groove 25. There are multiple sliders 21 in a symmetrical distribution. A groove 22 is provided on the top of the slider 21, and an installation strip 20 is connected to the inner wall of the groove 22 through a damping bearing. A magnetic block 1 23 is fixed on one side of the slider 21, and a magnetic block 24 is fixed on the other side of the slider 21. By utilizing the principle of mutual repulsion between the magnetic fields of magnetic block 1 23 and magnetic block 24, multiple buffering uses can be performed during the buffering process of the lower mold frame 1 and the upper mold frame 2 closing, thus extending the overall service life of the device and effectively reducing unnecessary wear.
[0039] Next, in order to maintain a good buffering effect during the mold closing process, a guide rod 6 is fixedly installed at the bottom of the upper mold frame 2. The bottom of the guide rod 6 is connected to a mounting block 18 by bolts. The side wall of the mounting block 18 is provided with a mounting groove 19. The inner wall of the mounting groove 19 is connected to a mounting strip 20 through a damping bearing. The angle of the mounting strip 20 connected to the inner wall of the mounting groove 19 through the damping bearing changes, so that the slider 21 moves in opposite directions on the inner wall of the slide groove 25. This facilitates the cooperation with the magnetic block 1 23 and the magnetic block 24, and maintains a good buffering effect during the mold closing process.
[0040] Meanwhile, in order to guide the mold frame from multiple directions, there are multiple guide tubes 3, which are arranged in a linear symmetrical pattern. The structural design of the guide tubes 3 in a linear symmetrical pattern facilitates the guidance of the mold frame from multiple directions.
[0041] Furthermore, in order to facilitate the replenishment of lubricating oil at any time, a vertical groove 16 is provided at the top of the guide tube 3, and a fixing pin 17 is engaged with the inner wall of the vertical groove 16. The structural design of engaging the fixing pin 17 with the inner wall of the vertical groove 16 facilitates the replenishment of lubricating oil at any time.
[0042] It is worth noting that, in order to better reduce lubricant waste, a scraper 4 is embedded in the top of the guide groove 26. The inner circumference of the scraper 4 and the outer circumference of the guide post 5 are aligned. When the mold is opened, the upper piston 7 is raised, and the scraper 4 scrapes off the lubricant on the side wall of the guide post 5. The lubricant falls onto the upper piston 7 and flows back to the oil chamber 15 through the upper oil outlet groove 13 for recycling, which effectively reduces lubricant waste.
[0043] Finally, in order to better maintain the stability of the slider 21 during movement, specifically, the side wall of the slider 21 is connected to a horizontal block 28 by bolts, and the inner wall of the slide groove 25 is provided with a horizontal groove 29. The inner wall of the horizontal groove 29 is slidably connected to the horizontal block 28. The structural design of the horizontal block 28 slidably connecting to the horizontal groove 29 makes it easier to maintain good stability during the movement of the slider 21.
[0044] In addition, the circuits, electronic components and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the internal structure and method.
[0045] Combination Figures 1-6 The specific usage process of the mold frame guiding mechanism in this embodiment is as follows:
[0046] 1. When using this type of mold frame guiding mechanism, the operator moves the lower mold frame 1 to a suitable position. During the mold closing process of the upper mold frame 2 and the lower mold frame 1, the guide rod 6 drives the mounting block 18 to descend, allowing the guide column 5 to move vertically along the inner wall of the guide groove 26. This causes the upper piston 7 to be pressed, which in turn drives the lower piston 8 to move downward. This facilitates the return spring 12 and the vertical rod 11 to be pressed, which in turn drives the upper piston 7 to descend. This causes the lubricating oil in the oil chamber 15 to flow out from the upper oil outlet groove 13, lubricating the guide column 5 entering the guide tube 3. This effectively extends the service life of the device and maintains the guiding accuracy. During the mold opening process, when the guide column 5 rises, the scraper 4 scrapes off the lubricating oil from the side wall of the guide column 5. The lubricating oil falls onto the upper piston 7 and flows back to the oil chamber 15 for recycling through the upper oil outlet groove 13, effectively reducing the waste of lubricating oil.
[0047] 2: When the device needs to maintain a good buffering effect during the mold closing process, the angle of the mounting strip 20 connected by the damping bearing on the inner wall of the mounting groove 19 changes during the descent of the guide column 5 and the mounting block 18. This facilitates the movement of the slider 21 in opposite directions on the inner wall of the slide groove 25. This allows for multiple buffering operations during the mold closing process of the lower mold frame 1 and the upper mold frame 2, utilizing the principle of mutual repulsion between the magnetic fields of magnetic block 1 23 and magnetic block 24. As a result, the overall service life of the device is extended, effectively reducing unnecessary wear.
[0048] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A mold frame guiding mechanism, characterized in that, The device includes a lower mold frame (1) and an upper mold frame (2). The top of the lower mold frame (1) is connected to a guide tube (3) by bolts. The guide tube (3) has a guide groove (26) inside. The inner wall of the guide groove (26) is slidably connected to a guide post (5). The inner wall of the guide groove (26) is provided with a partition plate (27). The surface of the partition plate (27) has an upper oil outlet groove (13). The inner circumferential wall of the partition plate (27) is slidably connected to an upper piston (7). The bottom of the upper piston (7) is fixedly provided with an upper clamping plate (9). The bottom of the upper plate (9) is connected to a vertical rod (11) by bolts. A return spring (12) is sleeved on the outer circumference of the vertical rod (11). A lower plate (10) is sleeved on the bottom of the return spring (12). A lower piston (8) is fixed on the bottom of the lower plate (10). A lower oil outlet groove (14) is opened at the bottom of the partition (27). An oil cavity (15) is opened on the inner circumference of the guide tube (3). The lower oil outlet groove (14), the upper oil outlet groove (13), and the oil cavity (15) are connected.
2. The mold frame guiding mechanism according to claim 1, characterized in that, The top of the lower mold frame (1) is provided with a sliding groove (25), and a slider (21) is slidably connected to the inner wall of the sliding groove (25). There are multiple sliders (21) and they are symmetrically distributed. The top of the slider (21) is provided with a groove (22), and the inner wall of the groove (22) is connected to an installation strip (20) through a damping bearing. A magnetic block one (23) is fixed on one side of the slider (21), and a magnetic block two (24) is fixed on one side of the slider (21).
3. The mold frame guiding mechanism according to claim 1, characterized in that, The bottom of the upper mold frame (2) is fixed with a guide rod (6), and the bottom of the guide rod (6) is connected to a mounting block (18) by bolts. The side wall of the mounting block (18) is provided with a mounting groove (19), and the inner wall of the mounting groove (19) is connected to a mounting strip (20) by a damping bearing.
4. The mold frame guiding mechanism according to claim 1, characterized in that, There are multiple guide tubes (3), and the guide tubes (3) are arranged in a linear symmetrical pattern.
5. The mold frame guiding mechanism according to claim 1, characterized in that, The top of the guide tube (3) is provided with a vertical groove (16), and a fixing pin (17) is engaged with the inner wall of the vertical groove (16).
6. The mold frame guiding mechanism according to claim 1, characterized in that, The top of the guide groove (26) is inlaid with a scraper (4), and the inner circumferential wall of the scraper (4) and the outer circumferential wall of the guide post (5) are in contact.
7. The mold frame guiding mechanism according to claim 2, characterized in that, The sidewall of the slider (21) is connected to a horizontal block (28) by bolts, and the inner wall of the slide groove (25) is provided with a horizontal groove (29), and the inner wall of the horizontal groove (29) is slidably connected to the horizontal block (28).