Injection mold with lubricating function
By setting up a lubricating structure on the guide rod of the injection mold and lubricate the guide sleeve with lubricant soaking the sponge block, the problem of wear of the guide rod and the guide sleeve is solved, extending the service life and achieving flexible adjustment of the lubricating degree.
Patent Information
- Application Number
- CN202421900405.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-07
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-08-07
AI Technical Summary
The guide rods and guide sleeves of existing injection molds are prone to wear during long-term relative movement, shortening their service life.
An injection mold with lubrication function is designed. By providing a lubricating structure on the end side of the guide rod, it includes a cavity and a rectangular hole opened on the inner side of the guide rod. The side wall of the guide rod is glued with a sponge block, and the guide sleeve is lubricated with lubricant.
It effectively reduces wear between the guide sleeve and the guide rod, extends service life, and achieves flexible adjustment of the degree of lubrication through the adjustment structure.
Smart Images
Figure CN223045037U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of injection molds, in particular to an injection mold with a lubricating function. Background Art
[0002] An injection mold belongs to one type of mold and is a device for injection molding products. Injection molds have high requirements for precision, stability, and reliability. Their design and manufacturing need to consider factors such as the characteristics of raw materials, the complexity of product structures, and the requirements for production efficiency.
[0003] In the existing related technologies, the following defects often exist: During the actual use of an injection mold, relative movement often occurs between the guide sleeve and the guide rod of the injection mold. Long-term relative movement between the two is likely to cause wear on the guide rod and the guide sleeve, thereby easily shortening the service life of the guide rod and the guide sleeve and affecting the use of the injection mold.
[0004] Therefore, the utility model provides an injection mold with a lubricating function. Summary of the Utility Model
[0005] The purpose of the utility model is to solve the defect that wear easily occurs between the guide rod and the guide sleeve in the existing technology, and to propose an injection mold with a lubricating function.
[0006] To achieve the above purpose, the utility model adopts the following technical scheme: An injection mold with a lubricating function includes a lower mold and an upper mold. Four guide rods are fixedly installed inside the lower mold, and a guide sleeve is fixedly installed inside the upper mold. The size of the guide sleeve is adapted to the size of the guide rod. A lubricating structure is provided on the end side of the guide rod. The lubricating structure includes a cavity opened inside the guide rod, several rectangular holes communicated with the cavity are opened inside the guide rod, and a sponge block is adhesively connected to the side wall of the guide rod.
[0007] The effects achieved by the above components are as follows: The lubricant can wet the sponge block along the rectangular holes, and then use the wet sponge block to lubricate the inside of the guide sleeve, thereby reducing the phenomenon of severe wear between the guide sleeve and the guide rod.
[0008] Preferably, a circular block is slidably connected inside the cavity of the guide rod, and several through holes are evenly opened on the surface of the circular block.
[0009] The effects achieved by the above components are as follows: Inject an appropriate amount of lubricating liquid into the cavity of the guide rod, and the lubricating liquid will flow into the bottom side of the cavity along the position of the through holes.
[0010] Preferably, a top rod is slidably connected inside the guide rod, and the lower end of the top rod is fixedly connected to the circular block.
[0011] The effects achieved by the above components are as follows: The ejector rod can be pressed by a syringe, and after the ejector rod is pressed and contracted to the inner side of the cavity, an appropriate amount of lubricant can be injected into the inner side of the cavity.
[0012] Preferably, a spring is fixedly connected between the circular block and the inner side of the cavity.
[0013] The effects achieved by the above components are as follows: The circular block will be lifted by the elastic force of the spring.
[0014] Preferably, an adjusting structure is provided on the surface of the guide rod. The adjusting structure includes a limiting groove opened at the end side position of the guide rod. A rotating ring is rotatably connected inside the limiting groove, and a number of overlapping holes are evenly opened on the lower side of the rotating ring.
[0015] The effects achieved by the above components are as follows: When the overlapping holes on the rotating ring rotate to the position overlapping with the rectangular hole, the maximum force wetting work of the sponge block can be realized.
[0016] Preferably, an annular groove communicating with the limiting groove is opened inside the guide rod, and a silica gel ring is sleeved inside the annular groove.
[0017] The effects achieved by the above components are as follows: By setting the silica gel ring, the resistance when twisting the rotating ring is increased, which facilitates the determination of the position of the rotating ring after determining the position by rotation.
[0018] Preferably, a number of clamping grooves are evenly opened at the upper end of the rotating ring.
[0019] The effects achieved by the above components are as follows: By setting the clamping grooves, the friction between the hand and the rotating ring is increased, which facilitates the twisting work of the rotating ring.
[0020] To sum up:
[0021] 1. In the present utility model, during the mold opening process, the circular block will be lifted by the elastic force of the spring. At this time, the lubricant will be first lifted by the circular block. At this time, the lubricant can wet the sponge block along the rectangular hole, and then use the wet sponge block to lubricate the inner side of the guide sleeve, thereby reducing the phenomenon of serious wear between the guide sleeve and the guide rod. By setting the lubrication structure, the flexible lubrication work between the guide rod and the guide sleeve is facilitated, the wear between the guide rod and the guide sleeve is reduced, and to a certain extent, the service life of the guide rod and the guide sleeve is prolonged.
[0022] 2. In the present utility model, when the overlapping holes on the rotating ring rotate to the position where they overlap with the rectangular hole, the maximum-intensity wetting work of the sponge block can be achieved. Conversely, the minimum-intensity wetting work is performed. By setting the silicone rubber ring, the resistance during the rotation of the rotating ring is increased, facilitating the determination of the position of the rotating ring after the rotation position is determined. By setting the adjustment structure, the flexible adjustment of the wetting degree of the sponge block is facilitated, and further, the adjustment of the lubrication degree between the guide rod and the guide sleeve is facilitated. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;
[0024] Figure 2 is a disassembled structural schematic diagram of the present utility model;
[0025] Figure 3 is a structural schematic diagram of the guide rod in the present utility model;
[0026] Figure 4 in the present utility model Figure 3 is a partial structural schematic diagram;
[0027] Figure 5 is a structural schematic diagram of the lubrication structure in the present utility model;
[0028] Figure 6 in the present utility model Figure 4 is a partial structural schematic diagram.
[0029] LEGEND DESCRIPTION: 1, lower mold; 2, upper mold; 3, guide sleeve; 4, guide rod; 5, lubrication structure; 51, ejector rod; 52, cavity; 53, sponge block; 54, spring; 55, round block; 56, through hole; 57, rectangular hole; 6, adjustment structure; 61, silicone rubber ring; 62, rotating ring; 63, overlapping hole; 64, clamping groove; 65, limiting groove; 66, annular groove. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0030] Referring to Figure 1 as shown, the present utility model provides a technical solution: an injection mold with a lubrication function, including a lower mold 1 and an upper mold 2. Four guide rods 4 are fixedly installed inside the lower mold 1, and a guide sleeve 3 is fixedly installed inside the upper mold 2. The size of the guide sleeve 3 is adapted to the size of the guide rod 4. A lubrication structure 5 is provided on the end side of the guide rod 4, and an adjustment structure 6 is provided on the surface of the guide rod 4.
[0031] The specific settings and functions of its lubrication structure 5 and adjustment structure 6 will be described in detail below.
[0032] Referring to Figures 1-6As shown in the figure, in this embodiment: The lubrication structure 5 includes a cavity 52 opened inside the guide rod 4. A number of rectangular holes 57 communicating with the cavity 52 are opened inside the guide rod 4. A sponge block 53 is adhesively bonded to the side wall of the guide rod 4. The lubricant can wet the sponge block 53 along the rectangular holes 57, and then use the wet sponge block 53 to lubricate the inner side of the guide sleeve 3, thereby reducing the phenomenon of severe wear between the guide sleeve 3 and the guide rod 4. A circular block 55 is slidably connected to the inner side of the cavity 52 in the guide rod 4. A number of through holes 56 are evenly opened on the surface of the circular block 55. Inject an appropriate amount of lubricating liquid into the inner side of the cavity 52, and the lubricating liquid will flow into the bottom side of the cavity 52 along the position of the through holes 56. A top rod 51 is slidably connected to the inside of the guide rod 4, and the lower end of the top rod 51 is fixedly connected to the circular block 55. The top rod 51 can be pressed with a syringe. After the top rod 51 is pressed and contracted into the inner side of the cavity 52, an appropriate amount of lubricating liquid can be injected into the inner side of the cavity 52. A spring 54 is fixedly connected between the circular block 55 and the inner side of the cavity 52. The circular block 55 will be lifted under the elastic force of the spring 54.
[0033] Referring to Figures 3-6 As shown in the figure, specifically, the adjustment structure 6 includes a limit groove 65 opened at the end side position of the guide rod 4. A rotating ring 62 is rotatably connected to the inside of the limit groove 65. A number of overlapping holes 63 are evenly opened on the lower side of the rotating ring 62. When the overlapping holes 63 on the rotating ring 62 rotate to the position overlapping with the rectangular holes 57, the maximum wetting work of the sponge block 53 can be realized. An annular groove 66 communicating with the limit groove 65 is opened inside the guide rod 4. A silica gel ring 61 is sleeved inside the annular groove 66. By setting the silica gel ring 61, the resistance when twisting the rotating ring 62 is increased, which facilitates the determination of the position of the rotating ring 62 after the rotation position is determined. A number of clamping grooves 64 are evenly opened on the upper end of the rotating ring 62. By setting the clamping grooves 64, the friction between the hand and the rotating ring 62 is increased, which facilitates the twisting work of the rotating ring 62.
[0034] Working principle: After sucking the lubricant into the inner side of the syringe, the plunger 51 can be pressed by the syringe. After the plunger 51 is pressed and contracted to the inner side of the cavity 52, an appropriate amount of lubricating fluid can be injected into the inner side of the cavity 52. The lubricating fluid will flow into the bottom side of the cavity 52 along the position of the through hole 56. During the process of closing the upper mold 2 and the lower mold 1, the plunger 51 will be squeezed and retracted to the position flush with the guide rod 4. At this time, the circular block 55 will be squeezed and contracted to the lower side position of the cavity 52, and the lubricating fluid will be squeezed to the upper side of the circular block 55 along the position of the through hole 56. During the process of opening the mold, the circular block 55 will be lifted by the elastic force of the spring 54. At this time, the lubricant will be first lifted by the circular block 55. At this time, the lubricant can wet the sponge block 53 along the rectangular hole 57, and then use the wet sponge block 53 to lubricate the inner side of the guide sleeve 3, thereby reducing the phenomenon of serious wear between the guide sleeve 3 and the guide rod 4, and extending the service life of the guide rod 4 and the guide sleeve 3 to a certain extent. After a period of time, the lubricant above the circular block 55 will flow into the bottom side of the cavity 52 again along the through hole 56, avoiding the long-term wetting of the sponge block 53. By setting the lubricating structure 5, it is convenient for the flexible lubrication work between the guide rod 4 and the guide sleeve 3, reduces the wear between the guide rod 4 and the guide sleeve 3, and extends the service life of the guide rod 4 and the guide sleeve 3 to a certain extent.
[0035] When it is necessary to adjust the wetting degree of the sponge block 53, directly rotate the rotating ring 62 inside the limiting groove 65. By setting the card slot 64, the friction force between the hand and the rotating ring 62 is increased, which is convenient for the twisting work of the rotating ring 62. When the overlapping holes 63 on the rotating ring 62 rotate to the position overlapping with the rectangular hole 57, the maximum wetting work of the sponge block 53 can be realized. On the contrary, it is the minimum wetting work. By setting the silicone rubber ring 61, the resistance when twisting the rotating ring 62 is increased, which is convenient for determining the position of the rotating ring 62 after determining the rotation position. By setting the adjusting structure 6, it is convenient for the flexible adjustment of the wetting degree of the sponge block 53, and further convenient for the adjustment of the lubrication degree between the guide rod 4 and the guide sleeve 3.
[0036] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it 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 directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.
Claims
1. An injection mold with a lubricating function, comprising a lower mold (1) and an upper mold (2), characterized in that: Four guide rods (4) are fixedly mounted on the inner side of the lower mold (1), a guide sleeve (3) is fixedly mounted on the inner side of the upper mold (2), the size of the guide sleeve (3) is matched with the size of the guide rod (4), a lubrication structure (5) is provided on the end side of the guide rod (4), the lubrication structure (5) comprises a cavity (52) opened on the inner side of the guide rod (4), a plurality of rectangular holes (57) connected to the cavity (52) are opened on the inner side of the guide rod (4), and a sponge block (53) is glued to the side wall of the guide rod (4).
2. The injection mold with lubrication function according to claim 1, characterized in that: A circular block (55) is slidably connected to the inner side of the upper cavity (52) of the guide rod (4), and a plurality of through holes (56) are evenly formed on the surface of the circular block (55).
3. The injection mold with lubrication function according to claim 1, characterized in that: A push rod (51) is slidably connected inside the guide rod (4), and the lower end of the push rod (51) is fixedly connected to a circular block (55).
4. The injection mold with lubrication function according to claim 2, characterized in that: A spring (54) is fixedly connected between the circular block (55) and the inner side of the cavity (52).
5. The injection mold with lubrication function according to claim 1, characterized in that: The surface of the guide rod (4) is provided with an adjustment structure (6), the adjustment structure (6) comprising a limit groove (65) provided at the end side of the guide rod (4), a rotating ring (62) being rotatably connected to the inner side of the limit groove (65), and a plurality of overlapping holes (63) being evenly provided on the lower side of the rotating ring (62).
6. The injection mold with lubrication function according to claim 5, characterized in that: An annular groove (66) communicating with the limiting groove (65) is provided on the inner side of the guide rod (4), and a silicone ring (61) is sleeved on the inner side of the annular groove (66).
7. The injection mold with lubrication function according to claim 5, characterized in that: A plurality of slots (64) are evenly arranged on the upper end of the rotating ring (62).