Die core insert with positioning pin

Abstract

The utility model discloses a mold core insert with a positioning pin, which can firmly fix the mold core insert on a fixing plate or a base of a mold through the matching between a pressing plate and a bolt as well as between a pressing plate groove and a bolt hole, so that the stable positioning of the mold core insert under the closing and injection pressure of the mold can be ensured; displacement caused by vibration or pressure in the production process can be prevented, so that the dimensional precision and consistency of formed products are kept, positioning errors caused by hole diameter enlargement can be eliminated through close fit of the pin sleeve and the positioning pin, it is ensured that high-precision positioning can be achieved every time the mold is closed, the positioning precision is effectively improved, and the production efficiency is improved. Meanwhile, one end of the positioning pin is of a spherical surface structure, so that the angle of the positioning pin can be automatically adjusted during assembly, a mold core insert can be more accurately aligned when the mold is closed, the product quality problem caused by positioning deviation is reduced, and the effect of improving the precision is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of mold design and manufacturing, and particularly relates to a mold core insert with positioning pins. Background Technique

[0002] In the traditional mold manufacturing process, the positioning and fixing of the mold core often rely on the experience and skills of fitters. This method not only has low efficiency, but also it is difficult to guarantee the accuracy. With the progress of technology and the development of the mold manufacturing industry, higher requirements are put forward for the positioning and fixing of the mold core. The mold core insert with positioning pins came into being under such a background. Content of the Utility Model

[0003] The purpose of the utility model is to provide a mold core insert with positioning pins to solve the existing problems.

[0004] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0005] The utility model is a mold core insert with positioning pins, including a mold core insert, characterized in that: a guiding structure is welded on the upper surface of the mold core insert, a pressing plate groove is opened on the upper surface of the mold core insert, a limiting and fixing pressing plate is fixedly connected to the bottom surface of the pressing plate groove, fixing bolt holes are arranged on the limiting and fixing pressing plate, fixing screw rods are nested and connected to the inner walls of the fixing bolt holes, fixing nuts are connected to the fixing screw rods, the fixing nuts are located above the limiting and fixing pressing plate, counterbore bolt holes are opened on the upper surface of the mold core insert, fixing bolts are nested and connected to the inner walls of the counterbore bolt holes, positioning holes are opened on the upper surface of the mold core insert, a pin sleeve is adhesively fixed to the inner wall of the positioning hole, threads are arranged on the inner wall of the pin sleeve, and a positioning pin is threadedly connected to the inner wall of the pin sleeve.

[0006] Furthermore, the guiding structure includes guiding columns, rubber gaskets and anti-slip gaskets. One side surface of the guiding column is fixedly welded to the mold core insert. The guiding column can ensure the precise alignment of the moving mold and the fixed mold during the closing process, reduce the gap between the molds, and thus indirectly improve the positioning accuracy of the utility model. On this basis, the positioning pin further ensures the precise positioning of the mold core. The combination of the two makes the overall positioning of the mold more stable. At the same time, during the closing process of the mold, the guiding column first contacts and guides the movement of the mold, avoiding the positioning pin on the mold core insert from directly bearing the impact and reducing the damage caused by the impact.

[0007] Furthermore, the outer circumferential surface of the guiding column is nested and connected with both the rubber gasket and the anti-slip gasket. The rubber gasket is located above the anti-slip gasket. The rubber gasket enables a buffer layer to be formed between the contact surface of the guiding column and the mold, and can also prevent dust, moisture and other impurities from entering the mold interior, protecting the mold system from contamination.

[0008] Further, the size and shape of the fixed bolt hole are adapted to the fixed screw rod. The peripheral side of the fixed nut has an internal hexagonal structure. The width of the pressing plate groove is adapted to the limiting and fixing pressing plate. The limiting and fixing pressing plate penetrates through the pressing plate groove and extends to the outside of the mold core insert. The pressing plate groove and the screw hole can firmly fix the mold core insert on the fixed plate or the base of the mold through the limiting and fixing pressing plate, the fixed screw rod and the fixed nut. This can not only ensure the stable positioning of the mold core insert under the action of mold closing and injection pressure, but also prevent displacement caused by vibration or pressure during the production process. At the same time, through the fastening of the limiting and fixing pressing plate, the fixed screw rod and the fixed nut, the rigidity of the entire mold structure is improved, thereby ensuring the morphological stability of the mold core insert in a high-pressure and high-temperature environment and further improving the precision of the present invention.

[0009] Further, a rotating thread groove is provided at the upper end of the positioning pin. The rotating thread groove facilitates the staff to put the positioning pin into and take it out of the groove provided in the pin sleeve. The inner wall of the positioning pin is attached with thermoplastic polyurethane elastic material. The lower end of the positioning pin is a spherical structure. Since the spherical surface can be finely adjusted in multiple directions, it reduces product quality problems caused by positioning deviation, thereby improving the precision of the present invention.

[0010] Further, the anti-slip gasket is made of a new alloy material. The upper surface of the anti-slip gasket is provided with a tooth lock structure. The anti-slip gasket enables the mold core insert to maintain a high positioning precision even under continuous pressure or dynamic load, and at the same time can simplify the assembly process and is easy to inspect and maintain.

[0011] The present invention has the following beneficial effects:

[0012] The present invention ensures the precise alignment of the moving mold and the fixed mold during the closing process through the guiding structure, reduces the gap between the molds, thereby improving the positioning precision of the present invention. On this basis, the positioning pin further ensures the precise positioning of the mold core. The combination of the two makes the overall positioning of the mold more stable, reducing product size deviation and deformation caused by mold misalignment.

[0013] The present invention enables the mold core insert to be firmly fixed on the fixed plate or the base of the mold through the cooperation between the pressing plate and the bolt and the pressing plate groove and the bolt hole. This can not only ensure the stable positioning of the mold core insert under mold closing and injection pressure, but also prevent displacement caused by vibration or pressure during the production process, thereby maintaining the dimensional accuracy and consistency of the molded product.

[0014] The utility model tightly cooperates the pin sleeve with the positioning pin, which can eliminate the positioning error caused by the enlarged hole diameter, ensure high-precision positioning every time the mold is closed, thus effectively enhancing the positioning accuracy. At the same time, one end of the positioning pin of the utility model is a spherical structure, which enables the positioning pin to automatically adjust the angle during assembly, helps to more accurately align the mold core insert when closing the mold, reduces product quality problems caused by positioning deviation, and thus achieves the effect of improving accuracy.

[0015] Of course, it is not necessary for any product implementing the utility model to achieve all the above-mentioned advantages simultaneously. Brief Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following will briefly introduce the drawings required for describing the embodiments. Obviously, the drawings in the following description are only some embodiments of the utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0017] Figure 1 It is a structural schematic diagram of a mold core insert with a positioning pin;

[0018] Figure 2 It is Figure 1 a partial enlarged view of C in

[0019] Figure 3 It is a top view of a mold core insert with a positioning pin;

[0020] Figure 4 It is Figure 3 a sectional view taken along line B-B in

[0021] Figure 5 It is Figure 3 a sectional view taken along line A-A in

[0022] In the drawings, the list of components represented by each reference numeral is as follows:

[0023] 1. Mold core insert; 2. Guide structure; 201. Guide post; 202. Rubber gasket; 203. Anti-slip gasket; 3. Press plate groove; 301. Limit fixed press plate; 302. Fixed bolt hole; 303. Fixed screw; 304. Fixed nut; 4. Countersunk head bolt hole; 401. Fixed bolt; 5. Positioning hole; 6. Pin sleeve; 7. Positioning pin; 701. Rotating thread groove. Detailed Embodiment

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying 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 belong to the protection scope of the present utility model.

[0025] In the description of the present utility model, it should be understood that the terms "upper", "middle", "outer", "inner", etc. indicating orientation or positional relationships are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0026] Please refer to Figures 1 - 5 As shown in the figure, the present utility model is a die core insert with positioning pins, including a die core insert 1, characterized in that: a guiding structure 2 is welded on the upper surface of the die core insert 1, a pressing plate groove 3 is opened on the upper surface of the die core insert 1, a limiting and fixing pressing plate 301 is fixedly connected to the bottom surface of the pressing plate groove 3, a fixing bolt hole 302 is provided in the limiting and fixing pressing plate 301, a fixing screw rod 303 is nested and connected to the inner wall of the fixing bolt hole 302, a fixing nut 304 is connected to the fixing screw rod 303, the fixing nut 304 is located above the limiting and fixing pressing plate 301, a countersunk head bolt hole 4 is opened on the upper surface of the die core insert 1, a fixing bolt 401 is nested and connected to the inner wall of the countersunk head bolt hole 4, a positioning hole 5 is opened on the upper surface of the die core insert 1, a pin sleeve 6 is adhesively fixed to the inner wall of the positioning hole 5, a thread is provided on the inner wall of the pin sleeve 6, and a positioning pin 7 is threadedly connected to the inner wall of the pin sleeve 6.

[0027] Among them, the guiding structure 2 includes a guiding column 201, a rubber gasket 202 and an anti-slip gasket 203. One side surface of the guiding column 201 is fixedly welded to the die core insert 1, so that the guiding column 201 can ensure the precise alignment of the moving die and the fixed die during the closing process, reduce the gap between the molds, and thus indirectly improve the positioning accuracy of the present utility model. On this basis, the positioning pin 7 further ensures the precise positioning of the die core. The combination of the two makes the overall positioning of the mold more stable, reduces the product size deviation and deformation caused by the misalignment of the mold, and at the same time, during the closing process of the mold, the guiding column 201 first contacts and guides the movement of the mold, avoiding the positioning pin 7 on the die core insert 1 from directly bearing the impact, and reducing the damage caused by the impact, thereby achieving the effect of protecting the die core insert 1.

[0028] Among them, the outer side surface of the guide post 201 is nested with both the rubber gasket 202 and the anti-slip gasket 203. The rubber gasket 202 is located above the anti-slip gasket 203. The rubber gasket 202 enables a buffer layer to be formed between the guide post 201 and the contact surface of the mold, reducing the direct friction between metals, thereby reducing the wear of the guide post 201 and the mold. At the same time, it can prevent dust, moisture, and other impurities from entering the interior of the mold, protecting the mold system from contamination.

[0029] Among them, the size and shape of the countersunk bolt hole 302 are adapted to the fixing screw 303. The outer side surface of the fixing nut 304 has an internal hexagonal structure. The width of the pressing plate groove 3 is adapted to the limiting and fixing pressing plate 301. The limiting and fixing pressing plate 301 passes through the pressing plate groove 3 and extends to the outside of the mold core insert 1. The pressing plate groove 3 and the screw hole can firmly fix the mold core insert 1 on the fixing plate or base of the mold through the limiting and fixing pressing plate 301, the fixing screw 303, and the fixing nut 304. This can not only ensure the stable positioning of the mold core insert 1 under the action of mold closing and injection pressure, but also prevent displacement caused by vibration or pressure during the production process. At the same time, through the fastening of the limiting and fixing pressing plate 301, the fixing screw 303, and the fixing nut 304, the rigidity of the entire mold structure is improved, thereby ensuring the morphological stability of the mold core insert 1 in a high-pressure and high-temperature environment, and further improving the precision of the present utility model.

[0030] Among them, the size and shape of the countersunk head bolt hole 4 are adapted to the fixing bolt 401. The cross-section of the fixing bolt 401 has a "T" - shaped structure. The upper end of the positioning pin 7 is provided with a rotating thread groove 701. The rotating thread groove 701 facilitates the staff to put the positioning pin 7 into and take it out of the groove provided by the pin sleeve 6. The inner wall of the positioning pin 7 is attached with a thermoplastic polyurethane elastomer material. The lower end of the positioning pin 7 is a spherical structure. Since the spherical surface can be finely adjusted in multiple directions, it helps to more accurately align the mold core insert 1 when closing the mold, reducing product quality problems caused by positioning deviation, thereby improving the precision of the present utility model.

[0031] Among them, the anti-slip gasket 203 is made of a new alloy material. The upper surface of the anti-slip gasket 203 is provided with a tooth lock structure, enabling the mold core insert 1 to maintain a high positioning accuracy even under continuous pressure or dynamic load. At the same time, it can simplify the assembly process and is easy to inspect and maintain. Due to the high visual recognition of the tooth lock structure, it can quickly identify whether the gasket has fallen off or is damaged, facilitating timely replacement to ensure that the mold always maintains the best working state.

[0032] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0033] The preferred embodiments of the present utility model disclosed above are only used to help explain the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principle and practical application of the present utility model, so that those skilled in the relevant technical field can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A mold core insert with a positioning pin, comprising a mold core insert (1), characterized in that: A guiding structure (2) is welded to the upper surface of the die core insert (1). A pressing plate groove (3) is formed in the upper surface of the die core insert (1). A limit fixing pressing plate (301) is fixedly connected to the bottom surface of the pressing plate groove (3). A fixing bolt hole (302) is arranged on the upper surface of the limit fixing pressing plate (301). A fixing screw rod (303) is nested and connected to the inner wall of the fixing bolt hole (302). A fixing nut (304) is threadedly connected to the peripheral side of the fixing screw rod (303). The fixing nut (304) is located above the limit fixing pressing plate (301). A countersunk head bolt hole (4) is formed in the upper surface of the die core insert (1). A fixing bolt (401) is nested and connected to the inner wall of the countersunk head bolt hole (4). A positioning hole (5) is formed in the upper surface of the die core insert (1). A pin bushing (6) is adhesively fixed to the inner wall of the positioning hole (5). The inner wall of the pin bushing (6) is provided with threads. A positioning pin (7) is threadedly connected to the inner wall of the pin bushing (6).

2. The core insert with a positioning pin according to claim 1, characterized in that, The guiding structure (2) includes a guiding column (201), a rubber gasket (202) and an anti-slip gasket (203). One side surface of the guiding column (201) is fixedly welded to the die core insert (1). The peripheral side of the guiding column (201) is nested and connected with both the rubber gasket (202) and the anti-slip gasket (203). The rubber gasket (202) is located above the anti-slip gasket (203). The anti-slip gasket (203) is made of a new alloy material. A tooth lock structure is arranged on the upper surface of the anti-slip gasket (203).

3. A mold core insert with a positioning pin according to claim 1, characterized in that, The size and shape of the fixing bolt hole (302) are adapted to the fixing screw rod (303). The peripheral side of the fixing nut (304) is an inner hexagonal structure. The width of the pressing plate groove (3) is adapted to the limit fixing pressing plate (301). The limit fixing pressing plate (301) penetrates through the pressing plate groove (3) and extends to the outside of the die core insert (1).

4. A core insert with a positioning pin according to claim 1, characterized in that, The size and shape of the countersunk head bolt hole (4) are adapted to the fixing bolt (401). The cross section of the fixing bolt (401) is a "T" shaped structure.

5. A mold core insert with a positioning pin according to claim 1, characterized in that A rotating thread groove (701) is arranged at the upper end of the positioning pin (7). The inner wall of the positioning pin (7) is attached with thermoplastic polyurethane elastomer material. The lower end of the positioning pin (7) is a spherical structure.

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