Injection mold with guide structure

Abstract

The utility model belongs to the technical field of injection molding, and particularly relates to an injection mold with a guide structure, which comprises a lower mold, the lower mold is fixedly connected with a base and a guide rod, the guide rod is provided with a lubricating component, and the lubricating component comprises a mineral oil tank. According to the injection mold with the guide structure, through the arranged lubricating assembly, after injection molding work is finished, the upper mold can extrude a sliding block in a mineral oil tank, the sliding block slides in a receding groove, an elastic block can elastically deform when the sliding block is extruded, a gap is formed between the receding groove and the extruded sliding block, and mineral oil slides out along a guide rod; the friction between the guide rod and the upper mold can be reduced, when the upper mold starts injection molding work, the sliding block is driven by gravity to move downwards, the protruding block blocks the receding groove so that the mineral oil tank can stop lubricating work, abrasion of parts can be prevented, and the replacement frequency of mold parts can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding, in particular to an injection mold with a guiding structure. Background Technique

[0002] With the wide application of plastic products in various industries, such as the household appliance, automobile, and electronics industries, the demand for plastic products has increased sharply. Traditional manual manufacturing and early simple molds cannot meet the needs of large-scale production. Injection molds can achieve the efficient and batch production of plastic products, greatly improving production efficiency.

[0003] Currently, in the prior art, during the guiding and sliding process of an injection mold, due to wear, the size of the guiding components will gradually change, and the wear gap may increase to several hundred micrometers or even larger. This will cause a deviation in the relative position of the core and the cavity when the mold is opened and closed. In view of this, we propose an injection mold with a guiding structure. Content of the Utility Model

[0004] The main purpose of the utility model is to provide an injection mold with a guiding structure, which can solve the problems proposed in the above background technique.

[0005] To achieve the above purpose, the injection mold with a guiding structure proposed by the utility model includes a lower mold, the lower mold is fixedly connected with a base, the lower mold is fixedly connected with guiding rods, the guiding rods are fixedly connected with a fixing plate, the fixing plate is connected with an upper mold through a driving component, a lubricating component is arranged on the guiding rods, and a clamping device is arranged on the lubricating component. The lubricating component includes:

[0006] A mineral oil tank, which is slidably connected to the guiding rod, and an oil injection port is opened on the surface of the mineral oil tank;

[0007] A relief groove is opened on the outer wall of the mineral oil tank.

[0008] Preferably, a sliding block is slidably connected in the relief groove, and multiple groups of sliding blocks are provided. After the injection molding work is completed, the upper mold will squeeze the sliding blocks, and the sliding blocks slide in the relief groove. The relief groove provides space and guidance for the movement of the sliding blocks.

[0009] Preferably, elastic blocks are fixedly connected to the outer wall of the sliding block, multiple groups of elastic blocks are provided, and convex blocks are fixedly connected to the outer wall of the sliding block. The elastic blocks will undergo elastic deformation when the sliding blocks are squeezed. A gap is generated between the relief groove and the squeezed sliding blocks, and the mineral oil slides out along the guiding rod. When the upper mold starts the injection molding work, the sliding blocks are driven downward by gravity, and the convex blocks block the relief groove, causing the mineral oil tank to stop the lubrication operation.

[0010] Preferably, the clamping device comprises an elastic sheet, the inner wall of the mineral oil tank is fixedly connected with the elastic sheet, and the elastic sheet is provided in multiple groups.

[0011] Preferably, a thread groove is provided on the surface of the elastic sheet.

[0012] Preferably, the threaded groove is threadedly connected to the threaded ring, and the threaded ring is driven to be threadedly connected to the threaded groove of the elastic sheet by rotating the threaded ring. After being subjected to this force, the elastic sheet will undergo elastic deformation, and its free end will expand outward. Since the elastic sheet is fixed to the inner wall of the mineral oil tank, the outward expansion of the elastic sheet will reduce the inner diameter of the mineral oil tank, thereby tightly holding the guide rod, thereby achieving a tight connection between the mineral oil tank and the guide rod.

[0013] The utility model provides an injection mold with a guide structure. It has the following beneficial effects:

[0014] (1) The injection mold with a guide structure is provided with a lubrication component. After the injection molding work is completed, the upper mold will squeeze the sliding block in the mineral oil tank, and the sliding block slides in the give way groove. The give way groove provides space and guidance for the movement of the sliding block. When the sliding block is squeezed, the elastic block will be elastically deformed, and a gap will be generated between the give way groove and the squeezed sliding block. The mineral oil slides out along the guide rod. The mineral oil has a certain lubrication property and can reduce the friction between the guide rod and the upper mold. When the upper mold starts the injection molding work, the sliding block is driven downward by gravity, and the protrusion blocks the give way groove to stop the lubrication operation of the mineral oil tank, which can prevent the wear of parts and reduce the replacement frequency of mold parts.

[0015] (2) The injection mold with a guide structure is provided with a clamping device, which drives the threaded ring to be threadedly connected with the threaded groove of the elastic sheet by rotating the threaded ring. After being subjected to this force, the elastic sheet will undergo elastic deformation, and its free end will expand outward. Since the elastic sheet is fixed to the inner wall of the mineral oil tank, the outward expansion of the elastic sheet will reduce the inner diameter of the mineral oil tank, thereby tightly holding the guide rod, achieving a tight connection between the mineral oil tank and the guide rod, maintaining a reliable fixing effect, and ensuring the normal operation of the lubrication component. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0017] Figure 1Schematic diagram of the overall three-dimensional structure of the present utility model Figure 1 ;

[0018] Figure 2 Schematic diagram of the overall three-dimensional structure of the present utility model Figure 2 ;

[0019] Figure 3 Schematic diagram of the lubrication component structure of the present utility model;

[0020] Figure 4 Schematic diagram of the clamping device structure of the present utility model;

[0021] Figure 5 Exploded structure schematic diagram of the lubrication component of the present utility model.

[0022] Explanation of the reference numerals in the attached drawings:

[0023] 1. Lower mold; 2. Base; 3. Guide rod; 4. Fixed plate; 5. Upper mold; 6. Lubrication component; 61. Mineral oil tank; 62. Relief groove; 63. Sliding block; 64. Elastic block; 65. Protrusion; 66. Oil injection port; 7. Clamping device; 71. Elastic sheet; 72. Threaded groove; 73. Threaded ring.

[0024] The realization of the purpose, functional characteristics and advantages of the present utility model will be further described with reference to the embodiments and the attached drawings. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the attached drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0026] Please refer to Figures 1-5 , the present utility model provides an injection mold with a guiding structure, including a lower mold 1, the lower mold 1 is fixedly connected with a base 2, the lower mold 1 is fixedly connected with a guide rod 3, the guide rod 3 is fixedly connected with a fixed plate 4, the fixed plate 4 is connected with an upper mold 5 through a driving component. During the opening and closing process of the injection mold, the upper mold 5 needs to move precisely along a specific direction to ensure the accurate cooperation of the core and the cavity. The guide rod 3 restricts the upper mold 5 to move only vertically up and down, preventing it from shifting or shaking horizontally. The driving component realizes the control of the opening and closing action of the upper mold 5 by connecting with the fixed plate 4 and the upper mold 5. A lubrication component 6 is arranged on the guide rod 3, a clamping device 7 is arranged on the lubrication component 6, and the lubrication component 6 includes a mineral oil tank 61.

[0027] In an embodiment of the present utility model, in order to prevent wear of components and reduce the replacement frequency of die components, specifically, a mineral oil tank 61 is slidably connected to the guide rod 3. An oil filling port 66 is provided on the surface of the mineral oil tank 61. The mineral oil in the mineral oil tank 61 is refined from petroleum and has a relatively low cost. The mineral oil has certain lubricating properties and can reduce the friction between the guide rod 3 and the upper die 5. Before the die is used or during regular maintenance, an operator can inject an appropriate amount of mineral oil into the mineral oil tank 61 through the oil filling port 66. A relief groove 62 is provided on the outer wall of the mineral oil tank 61, and a sliding block 63 is slidably connected in the relief groove 62. Multiple groups of sliding blocks 63 are provided. After the injection molding work is completed, the upper die 5 will squeeze the sliding block 63, and the sliding block 63 slides in the relief groove 62. The relief groove 62 provides space and guidance for the movement of the sliding block 63. An elastic block 64 is fixedly connected to the outer wall of the sliding block 63, and multiple groups of elastic blocks 64 are provided. The elastic block 64 will undergo elastic deformation when the sliding block 63 is squeezed, and a gap is generated between the relief groove 62 and the squeezed sliding block 63. The mineral oil slides out along the guide rod 3. When the upper die 5 starts the injection molding work, the sliding block 63 is driven downward by gravity, and the convex block 65 blocks the relief groove 62 to stop the lubrication operation of the mineral oil tank 61.

[0028] Furthermore, in order to maintain a reliable fixing effect and ensure the normal operation of the lubrication assembly 6, specifically, the clamping device 7 includes an elastic piece 71. The elastic piece 71 is fixedly connected to the inner wall of the mineral oil tank 61, and multiple groups of elastic pieces 71 are provided. Thread grooves 72 are provided on the surface of the elastic piece 71, and the thread grooves 72 are threadedly connected to a thread ring 73. By rotating the thread ring 73, the thread ring 73 is threadedly connected to the thread grooves 72 of the elastic piece 71. After the elastic piece 71 receives this acting force, it will undergo elastic deformation, and its free end will expand outward. Since the elastic piece 71 is fixed to the inner wall of the mineral oil tank 61, the outward expansion of the elastic piece 71 will reduce the inner diameter of the mineral oil tank 61, thereby tightly holding the guide rod 3 and achieving the tight connection between the mineral oil tank 61 and the guide rod 3.

[0029] In the present utility model, during use, by rotating the threaded ring 73, the threaded ring 73 is threadedly connected to the threaded groove 72 of the elastic piece 71. After the elastic piece 71 receives this acting force, it will undergo elastic deformation, and its free end will expand outwards. Since the elastic piece 71 is fixed to the inner wall of the mineral oil tank 61, the outward expansion of the elastic piece 71 will reduce the inner diameter of the mineral oil tank 61, thereby tightly holding the guide rod 3, achieving the tight connection between the mineral oil tank 61 and the guide rod 3, maintaining a reliable fixing effect, ensuring the normal operation of the lubrication assembly 6. After the injection molding work is completed, the upper mold 5 will squeeze the sliding block 63 in the mineral oil tank 61. The sliding block 63 slides in the relief groove 62, and the relief groove 62 provides space and guidance for the movement of the sliding block 63. The elastic block 64 will undergo elastic deformation when the sliding block 63 is squeezed, and a gap is generated between the relief groove 62 and the squeezed sliding block 63. The mineral oil slides out along the guide rod 3. The mineral oil has certain lubricating properties, which can reduce the friction between the guide rod 3 and the upper mold 5. When the upper mold 5 starts the injection molding work, the sliding block 63 is driven downward by gravity, and the convex block 65 blocks the relief groove 62, causing the mineral oil tank 61 to stop the lubrication operation, which can prevent the wear of components and reduce the replacement frequency of mold components.

[0030] The above are only the preferred embodiments of the present utility model, and do not limit the patent scope of the present utility model. Any equivalent structural transformation made by using the content of the specification and drawings of the present utility model under the inventive concept of the present utility model, or any direct / indirect application in other related technical fields, is included in the patent protection scope of the present utility model.

Claims

1. An injection mold with a guiding structure, comprising a lower mold (1), the lower mold (1) is fixedly connected with a base (2), the lower mold (1) is fixedly connected with a guiding rod (3), the guiding rod (3) is fixedly connected with a fixing plate (4), and the fixing plate (4) is connected with an upper mold (5) through a driving assembly, characterized in that: A lubrication assembly (6) is provided on the guide rod (3), and a clamping device (7) is provided on the lubrication assembly (6). The lubrication assembly (6) includes: a mineral oil tank (61), the mineral oil tank (61) is slidably connected to the guide rod (3), and an oil injection port (66) is provided on the surface of the mineral oil tank (61); a relief groove (62), the relief groove (62) is provided on the outer wall of the mineral oil tank (61).

2. The injection mold with a guiding structure according to claim 1, characterized in that: A sliding block (63) is slidably connected in the relief groove (62), and multiple groups of the sliding blocks (63) are provided.

3. The injection mold with a guiding structure according to claim 2, characterized in that: An elastic block (64) is fixedly connected to the outer wall of the sliding block (63), multiple groups of the elastic blocks (64) are provided, and a convex block (65) is fixedly connected to the outer wall of the sliding block (63).

4. An injection mold with a guiding structure according to claim 1, characterized in that: The clamping device (7) includes an elastic sheet (71), the elastic sheet (71) is fixedly connected to the inner wall of the mineral oil tank (61), and multiple groups of the elastic sheets (71) are provided.

5. The injection mold with a guiding structure according to claim 4, characterized in that: A threaded groove (72) is provided on the surface of the elastic sheet (71).

6. The injection mold with a guiding structure according to claim 5, characterized in that: The threaded groove (72) is threadedly connected to a threaded ring (73).

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