Sliding block anti-retreating mechanism and mold

Abstract

The utility model discloses a slide block anti-retreat mechanism and mould, the slide block anti-retreat mechanism comprises: two guide parts which are arranged side by side on the mould body along the first direction, at least one of the two guide parts is provided with a caulking groove on the opposite side of the two guide parts; the sliding block is arranged between the two guide parts in a sliding mode in the second direction, and a mounting position is defined by the sliding block; the locking part is arranged on the sliding block in a sliding mode in the first direction; the driving mechanism comprises a connecting part and a driving part which are in transmission connection, the connecting part is arranged at the mounting position in a sliding mode in the second direction, the connecting part is connected with the locking part, and the connecting part is configured in the mode that the connecting part can slide in the mounting position in the second direction under driving of the driving part and drives the locking part to slide in the first direction so that the locking part can be partially embedded into or disengaged from the caulking groove; the elastic piece is used for applying elastic force in the first direction to the locking part so that the locking part can have the movement tendency of retracting relative to the sliding block. The sliding block can be prevented from retreating in the injection molding process.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a slide block anti-retraction mechanism and a mold. Background Art

[0002] Molds are various molds and tools used in industrial production to obtain the desired products by injection molding, blow molding, extrusion, die casting or forging molding, smelting, stamping and other methods. This tool is composed of various parts, and different molds are composed of different parts. It mainly realizes the processing of the shape of the object by changing the physical state of the molded material. It is widely used in blanking, die forging, cold heading, extrusion, powder metallurgy pressing, pressure casting, and compression molding or injection molding of engineering plastics, rubber, ceramics and other products. The traditional injection mold structure is that the oil cylinder or air cylinder drives the slider to move. During the injection molding process, the slider insert will push the slider back because the injection pressure of the plastic is very high (that is, when the injection pressure is greater than the pressure of the oil cylinder or air cylinder), resulting in the slider insert being unable to seal the glue position and causing glue leakage or burrs. Therefore, a device is urgently needed to prevent the slider from retreating during the injection molding process. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a slider anti-retraction mechanism, which can prevent the slider from retreating during the injection molding process.

[0004] The utility model also provides a mold comprising the slider anti-retraction mechanism.

[0005] According to the first embodiment of the utility model, the slider anti-retraction mechanism is provided on the mold body and includes:

[0006] Two guide parts are arranged side by side on the mold body along a first direction, and at least one of the two guide parts has an embedding groove on the opposite sides thereof;

[0007] A slider is slidably disposed between the two guide portions along the second direction, and the slider defines a mounting position;

[0008] A locking portion, slidably disposed on the slider along the first direction;

[0009] The driving mechanism comprises a connecting portion and a driving member in transmission connection, wherein the connecting portion is slidably arranged at the installation position along the second direction, the connecting portion is connected to the locking portion, and the connecting portion is configured such that: the connecting portion can slide along the second direction in the installation position under the driving of the driving member, and drive the locking portion to slide along the first direction so that the locking portion is partially embedded in or out of the embedding groove;

[0010] An elastic member is used to apply an elastic force along the first direction to the locking portion, so that the locking portion has a tendency to move back relative to the slider.

[0011] The anti-retreat mechanism for the slider according to the embodiment of the present invention has at least the following beneficial effects:

[0012] By providing an embedding groove on the guiding portion, and providing a locking portion and a connecting portion on the slider and other structures, during mold closing, the driving member can be used to drive the connecting portion to slide along the second direction in the installation position and drive the locking portion to slide along the first direction to partially embed into the embedding groove, so as to lock the slider on the guiding portion by the cooperation of the locking portion and the embedding groove, that is, lock the slider on the mold body, thereby preventing the slider from retreating under pressure during the injection molding process; by providing an elastic member, during mold opening, the driving member can be assisted to drive the locking portion to disengage from the embedding groove, reducing the jamming during the process of the locking portion disengaging from the embedding groove and improving the structural stability.

[0013] According to some embodiments of the present invention, one of the locking portion and the connecting portion is provided with an inclined groove, and the other is provided with an inclined block. The length direction of the inclined groove is distributed at an acute angle with the second direction, and the inclined block is embedded in the inclined groove. When the connecting portion slides along the second direction in the installation position, the inclined block can slide along the length direction of the inclined groove to drive the locking portion to slide along the first direction.

[0014] According to some embodiments of the present invention, the installation position is provided with an installation cavity, the connecting portion is located in the installation cavity, and limiting surfaces are respectively provided on opposite sides of the installation cavity along the second direction for limiting the sliding of the connecting portion in the installation cavity.

[0015] According to some embodiments of the present invention, one end of the installation cavity along the third direction is provided with a disassembly and assembly opening through which the connecting portion can pass. The third direction is perpendicular to the second direction and perpendicular to the first direction.

[0016] According to some embodiments of the present invention, a sliding hole penetrating along the first direction is provided on the side wall of the installation cavity, and the locking portion is slidably fitted into the sliding hole.

[0017] According to some embodiments of the present invention, a stop block is detachably provided at one end of the sliding hole along the first direction away from the installation cavity. The stop block partially blocks the sliding hole. The elastic member includes a spring, and the spring is located in the sliding hole and abuts against the stop block and the locking portion at both ends respectively.

[0018] According to some embodiments of the present invention, an installation hole is provided at one end of the locking portion facing the stop block for the spring to be embedded.

[0019] According to some embodiments of the present utility model, the two guiding portions are respectively provided with the embedding grooves on the facing sides, there are two locking portions which are respectively connected to the connecting portion, and when the connecting portion slides along the second direction in the installation position, the two locking portions can be driven to approach or separate from each other along the first direction.

[0020] According to some embodiments of the present utility model, the slider is provided with a limiting block, the limiting block is located between the two locking portions, and the limiting block is used for abutting against the two locking portions when the two locking portions approach each other along the first direction.

[0021] The mold according to the second aspect embodiment of the present utility model includes a mold body and the slider anti-retreat mechanism of the above first aspect embodiment. For the mold according to the embodiment of the present utility model, by adopting the above slider anti-retreat mechanism, through arranging the embedding groove on the guiding portion, and arranging structures such as the locking portion and the connecting portion on the slider, during mold closing, the connecting portion can be driven by a driving member to slide along the second direction in the installation position and drive the locking portion to slide along the first direction to partially embed into the embedding groove, so as to lock the slider on the guiding portion by the cooperation of the locking portion and the embedding groove, that is, lock the slider on the mold body, thereby preventing the slider from retreating under pressure during the injection molding process; by arranging the elastic member, during mold opening, the elastic member can assist the driving member to drive the locking portion to disengage from the embedding groove, reduce the jamming during the process of the locking portion disengaging from the embedding groove, and improve the structural stability.

[0022] The additional aspects and advantages of the present utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the present utility model. Description of the Drawings

[0023] The following further describes the present utility model in conjunction with the drawings and embodiments, where:

[0024] Figure 1 is the installation structure schematic diagram of the slider anti-retreat mechanism and the mold body of the embodiment of the present utility model;

[0025] Figure 2 is the structural schematic diagram of the embodiment of the present utility model in the mold closing state;

[0026] Figure 3 is the structural schematic diagram of the embodiment of the present utility model in the mold opening state;

[0027] Figure 4 is the structural schematic diagram of the slider anti-retreat mechanism of the embodiment of the present utility model;

[0028] Figure 5 is the structural exploded schematic diagram of the slider anti-retreat mechanism of the embodiment of the present utility model;

[0029] Figure 6It is a schematic structural diagram of the connecting part of the embodiment of the present utility model.

[0030] Reference numerals in the drawings:

[0031] Mold body 100, slider insert 110;

[0032] Guide part 200, slot 201;

[0033] Slider 300, installation cavity 301, limiting surface 302, disassembly and assembly opening 303, sliding hole 304, stop block 310, limiting block 320;

[0034] Locking part 400, inclined slot 401, installation hole 402;

[0035] Connecting part 500, inclined block 501;

[0036] Driving part 600;

[0037] Elastic part 700. Detailed implementation manners

[0038] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present utility model and should not be construed as limiting the present utility model.

[0039] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as up and down, etc., is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

[0040] In the description of the present utility model, "a plurality of" means more than two. If the first and the second are described, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence of the indicated technical features.

[0041] In the description of the present utility model, unless otherwise clearly defined, terms such as setting, installation, and connection should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above terms in the present utility model in combination with the specific content of the technical solution.

[0042] Refer to Figures 1 to 6As shown in the figure, the anti-retreat mechanism for the slider in the first aspect embodiment of the present utility model is provided on the mold body 100. The anti-retreat mechanism for the slider includes: a guiding part 200, a slider 300, a locking part 400, a driving mechanism, and an elastic part 700.

[0043] There are two guiding parts 200. The two guiding parts 200 are arranged side by side on the mold body 100 along the first direction. The guiding part 200 extends along the second direction, and the second direction is perpendicular to the first direction. At least one of the two guiding parts 200 is provided with an embedding groove 201 on the facing side of the two. In this embodiment, the guiding part 200 is a runner bar.

[0044] The slider 300 is slidably arranged between the two guiding parts 200 along the second direction. The relative two ends of the slider 300 along the first direction are respectively in contact with the two guiding parts 200. An installation position is defined on the slider 300. One end of the slider 300 along the second direction is used to connect the slider insert 110, and the second direction is the direction of mold closing and opening.

[0045] The locking part 400 is slidably arranged on the slider 300 along the first direction. When the locking part 400 slides along the first direction, it can extend or retract relative to the slider 300.

[0046] The driving mechanism includes a connecting part 500 and a driving part 600. The connecting part 500 is in transmission connection with the driving part 600. The connecting part 500 is slidably arranged in the installation position along the second direction. The connecting part 500 is connected to the locking part 400. The connecting part 500 is configured as follows: the connecting part 500 can slide along the second direction in the installation position under the drive of the driving part 600 and drive the locking part 400 to slide along the first direction so that the locking part 400 is partially embedded in or disengaged from the embedding groove 201. The driving part 600 is set as an air cylinder or an oil cylinder. Specifically, when the mold is closed, after the slider insert 110 is in place, the driving part 600 drives the connecting part 500 to slide along the second direction towards the slider insert 110 in the installation position. At this time, the connecting part 500 drives the locking part 400 to slide along the first direction until the locking part 400 is partially embedded in the embedding groove 201, thereby locking the slider 300 on the guiding part 200 by the cooperation of the locking part 400 and the embedding groove 201, that is, locking the slider 300 on the mold body 100, so as to prevent the slider 300 from retreating under pressure during the injection molding process. When the mold is opened, the driving part 600 drives the connecting part 500 to slide along the second direction away from the slider insert 110 in the installation position. At this time, the connecting part 500 drives the locking part 400 to slide along the first direction until the locking part 400 disengages from the embedding groove 201, releasing the locking of the slider 300. After that, the slider 300 and the slider insert 110 can withdraw from the mold body 100 to perform mold opening.

[0047] The elastic member 700 is used to apply an elastic force to the locking portion 400 in the first direction, so that the locking portion 400 has a tendency to move back relative to the slider 300. When the driving member 600 drives the connecting portion 500 to slide away from the slider insert 110 in the second direction within the installation position, the elastic member 700 can assist the driving member 600 to drive the locking portion 400 to move back relative to the slider 300 to disengage from the engaging groove 201, reducing the jamming during the process of the locking portion 400 disengaging from the engaging groove 201 and improving the structural stability.

[0048] For the slider anti-retreat mechanism of the embodiment of the present utility model, by providing the engaging groove 201 on the guiding portion 200 and providing structures such as the locking portion 400 and the connecting portion 500 on the slider 300, during mold closing, the driving member 600 can drive the connecting portion 500 to slide in the second direction within the installation position and drive the locking portion 400 to slide in the first direction to partially embed into the engaging groove 201, thereby using the cooperation between the locking portion 400 and the engaging groove 201 to lock the slider 300 on the guiding portion 200, that is, locking the slider 300 on the mold body 100, so as to prevent the slider 300 from retreating under pressure during the injection molding process; by providing the elastic member 700, during mold opening, it can assist the driving member 600 to drive the locking portion 400 to disengage from the engaging groove 201, reducing the jamming during the process of the locking portion 400 disengaging from the engaging groove 201 and improving the structural stability.

[0049] Refer to Figures 2 to 6 As shown, in some embodiments of the present utility model, one of the locking portion 400 and the connecting portion 500 is provided with an inclined groove 401, and the other is provided with an inclined block 501. The length direction of the inclined groove 401 is distributed at an acute angle with the second direction. The inclined block 501 is embedded in the inclined groove 401. When the connecting portion 500 slides in the second direction within the installation position, the inclined block 501 can slide along the length direction of the inclined groove 401 to drive the locking portion 400 to slide in the first direction. By providing the inclined block 501 and the inclined groove 401, the movement of the connecting portion 500 in the second direction is converted into the movement of the locking portion 400 in the first direction, and the structure is simple and practical. Specifically, in this embodiment, the inclined groove 401 is provided on the locking portion 400, its depth direction is perpendicular to the second direction, and the depth direction of the inclined groove 401 is perpendicular to the first direction. In addition, the cross-sectional shape of the inclined groove 401 in its own depth direction is rectangular. The advantage of such a setting is that it is convenient for the inclined block 501 to be fitted into the inclined groove 401. When the inclined block 501 is fitted into the inclined groove 401, it can be directly fitted into the inclined groove 401 from the open end in the depth direction of the inclined groove 401, without having to be fitted into the inclined groove 401 from the end in the length direction of the inclined groove 401, and the requirement for the operation space is smaller.

[0050] Refer to Figure 4 and Figure 5As shown, in some embodiments of the present utility model, an installation cavity 301 is provided at the installation position, and the connection part 500 is located within the installation cavity 301. In this way, the overall structure can be made more compact. In addition, limiting surfaces 302 are respectively provided on opposite sides of the installation cavity 301 along the second direction, and the two limiting surfaces 302 are used to limit the sliding of the connection part 500 within the installation cavity 301. Specifically, in this embodiment, when the connection part 500 slides to abut against the limiting surface 302 close to the slider insert 110, the locking part 400 just partially engages into the embedding groove 201 to realize the locking of the slider 300. When the connection part 500 slides to abut against the limiting surface 302 far from the slider insert 110, the locking part 400 just disengages from the embedding groove 201. At this time, when the connection part 500 continues to slide, it will drive the slider 300 to move together for mold opening. Further, a disassembly and assembly opening 303 is provided at one end of the installation cavity 301 along the third direction. The disassembly and assembly opening 303 can allow the connection part 500 to pass through. The third direction is perpendicular to the second direction and perpendicular to the first direction. By providing the disassembly and assembly opening 303, the disassembly and assembly of the connection part 500 can be facilitated. When it is necessary to disassemble the connection part 500, the connection between the connection part 500 and the driving part 600 and the locking part 400 is disconnected, and then it is taken out from the disassembly and assembly opening 303. In this embodiment, the third direction is the depth direction of the inclined groove 401.

[0051] Referring to Figure 4 and Figure 5 As shown, in some embodiments of the present utility model, a sliding hole 304 penetrating along the first direction is provided on the side wall of the installation cavity 301, and the locking part 400 is slidably fitted into the sliding hole 304, so as to slidably mount the locking part 400 on the slider 300, and the structure is stable and reliable.

[0052] Referring to Figure 4 and Figure 5 As shown, in some embodiments of the present utility model, a stopper 310 is detachably provided at one end of the sliding hole 304 along the first direction away from the installation cavity 301. The stopper 310 partially covers the sliding hole 304, and the locking part 400 can partially extend out from the area not covered by the stopper 310. The elastic member 700 includes a spring. The spring is located within the sliding hole 304 and the two ends of the spring along the first direction respectively abut against the stopper 310 and the locking part 400, so as to apply an elastic force along the first direction to the locking part 400. The structure is simple and practical. Specifically, the stopper 310 is fixed to the slider 300 by screws to facilitate the disassembly and assembly of the spring and the locking part 400. In a further embodiment, an installation hole 402 is provided at one end of the locking part 400 facing the stopper 310. The installation hole 402 is used for the spring to be embedded. Thus, an installation position and deformation guidance are provided for the spring, ensuring the structural stability during the deformation of the elastic member 700.

[0053] Referring to Figure 2 and Figure 3As shown, in some embodiments of the present utility model, the two guiding portions 200 are respectively provided with engaging grooves 201 on the facing sides. There are two locking portions 400 which are respectively connected to the connecting portion 500. When the connecting portion 500 slides along the second direction within the installation position, it can drive the two locking portions 400 to approach or move away from each other along the first direction. By setting the two locking portions 400 to cooperate with the engaging grooves 201 on the two guiding portions 200 respectively, the locking of the slider 300 is realized to prevent the slider 300 from retracting. Compared with the single-sided setting of the locking portion 400, not only can the locking effect be improved, but also the force can be more evenly distributed, and the locking portion 400 is not easily damaged. Obviously, in this embodiment, there are also two elastic members 700, which are respectively provided corresponding to the two locking portions 400. In a further embodiment, a limiting block 320 is provided on the slider 300. The limiting block 320 is located between the two locking portions 400 and is used to abut against the two locking portions 400 when the two locking portions 400 approach each other along the first direction. By setting the limiting block 320, when assembling the connecting portion 500 and the two locking portions 400, the limiting block 320 can be used to abut against the two locking portions 400 to relatively position the two locking portions 400, avoiding the situation that the locking portion 400 deviates from the installation position under the action of the elastic member 700, and avoiding affecting the mating connection between the locking portion 400 and the connecting portion 500. On the other hand, using the limiting block 320 to abut against the two locking portions 400 to relatively position the two locking portions 400 can also avoid the two locking portions 400 applying different forces to the connecting portion 500 during mold opening, resulting in unbalanced force on the connecting portion 500.

[0054] The mold according to the second aspect embodiment of the present utility model includes a mold body 100 and the anti-retreat mechanism for the slider of the first aspect embodiment, and the anti-retreat mechanism for the slider is provided on the mold body 100. Since the mold can adopt all the technical solutions of the anti-retreat mechanism for the slider of the first aspect embodiment, it at least has all the beneficial effects brought by the technical solutions of the first aspect embodiment. These additional beneficial effects will not be elaborated here.

[0055] It can be understood that the other constitutions and operations of the mold according to the embodiments of the present utility model are known to those of ordinary skill in the art, and will not be described in detail here.

[0056] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" 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 can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

[0057] The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited to the above embodiments, and various changes can be made without departing from the gist of the present utility model within the scope of knowledge possessed by those of ordinary skill in the art.

Claims

1. A slider anti-retraction mechanism, provided on a mold body, characterized in that: include: Two guide parts are arranged side by side on the mold body along a first direction, and at least one of the two guide parts has an embedding groove on the opposite sides thereof; A slider is slidably disposed between the two guide portions along the second direction, and the slider defines a mounting position; A locking portion, slidably disposed on the slider along the first direction; The driving mechanism comprises a connecting portion and a driving member in transmission connection, wherein the connecting portion is slidably arranged at the installation position along the second direction, the connecting portion is connected to the locking portion, and the connecting portion is configured such that: the connecting portion can slide along the second direction in the installation position under the driving of the driving member, and drive the locking portion to slide along the first direction so that the locking portion is partially embedded in or out of the embedding groove; The elastic member is used to apply an elastic force along the first direction to the locking portion, so that the locking portion has a movement tendency to be retracted relative to the sliding block.

2. The slider anti-retraction mechanism according to claim 1, characterized in that: One of the locking portion and the connecting portion is provided with an inclined groove, and the other is provided with an inclined block. The length direction of the inclined groove is distributed at an acute angle with the second direction, and the inclined block is embedded in the inclined groove. When the connecting portion slides along the second direction in the installation position, the inclined block can slide along the length direction of the inclined groove to drive the locking portion to slide along the first direction.

3. The slider anti-retraction mechanism according to claim 1, characterized in that: The installation position is provided with an installation cavity, the connecting part is located in the installation cavity, and the installation cavity is provided with limiting surfaces on opposite sides along the second direction for limiting the sliding of the connecting part in the installation cavity.

4. The slider anti-retraction mechanism according to claim 3, characterized in that: The installation cavity is provided with a disassembly opening at one end along a third direction, and the connection portion can pass through the disassembly opening. The third direction is perpendicular to the second direction, and the third direction is perpendicular to the first direction.

5. The slider anti-retraction mechanism according to claim 3, characterized in that: The side wall of the installation cavity is provided with a sliding hole penetrating along the first direction, and the locking portion is slidably fitted into the sliding hole.

6. The slider anti-retraction mechanism according to claim 5, characterized in that: A stopper is detachably provided at one end of the sliding hole away from the installation cavity along the first direction, and the stopper partially blocks the sliding hole. The elastic member includes a spring, and the spring is located in the sliding hole and has two ends respectively abutting against the stopper and the locking portion.

7. The slider anti-retraction mechanism according to claim 6, characterized in that: The locking portion is provided with a mounting hole at one end facing the stopper, and the mounting hole is used for the spring to be embedded.

8. The slider anti-retraction mechanism according to claim 1, characterized in that: The two guide parts are respectively provided with the embedding grooves on the opposite sides, the locking parts are provided with two and are respectively connected to the connecting parts, and when the connecting parts slide along the second direction in the installation position, the two locking parts can be driven to approach or move away from each other along the first direction.

9. The slider anti-retraction mechanism according to claim 8, characterized in that: The sliding block is provided with a limit block, the limit block is located between the two locking parts, and the limit block is used to abut against the two locking parts when the two locking parts approach each other along the first direction.

10. A mold, characterized in that: It comprises a mold body and a slider anti-retraction mechanism as described in any one of claims 1 to 9.

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