Insert slider structure of a mold

Abstract

The present invention discloses an insert slider structure of a mold, comprising an insert, one side of which is provided with a terminal installation cavity with a side opening; a slide seat; a slider structure, which is slidably installed on the slide seat and relatively close to or relatively away from the side opening of the terminal installation cavity along the guide direction of the slide seat under the action of a driving force; the slider structure is provided with a clamping block on the side wall close to the insert that can extend into the terminal installation cavity and cooperate with the insert to clamp the terminal located in the terminal installation cavity. The use of an open insert slider structure can avoid scratches when the terminal is installed in the insert hole, and the slider structure can adjust the terminal gap inward or outward according to the amount of easy deformation of injection molding to be within the qualified range, which can solve the deformation problem of the terminal, has the advantages of high qualified rate and low production cost in manufacturing products containing bent terminal connectors, and enables the mold mechanism to meet mass production requirements.

Description

Technical Field

[0001] The invention relates to the technical field of injection molds, and in particular to an insert slider structure of a mold. Background Art

[0002] In manufacturing Figure 1 In the process of manufacturing the connector 100 composed of the hardware terminal 110 and the plastic part 120, the hardware terminal 110 needs to be plastic-coated in the plastic part 120, and the plastic-coated hardware terminal 110 needs to be exposed from the outer wall of the plastic part 120. According to different applications, the terminals of the connector product need to be provided with different structures, and some connectors need to be provided with bent terminals. When manufacturing a connector with a bent terminal, the bent terminal is generally manufactured first, and then the bent terminal is inserted into the mold insert hole, and finally the plastic part is injection molded to manufacture a connector product with a plastic-coated hardware terminal.

[0003] In the prior art, manufacturing Figure 1 The mold insert of the connector 100 is shown as Figure 2 As shown in FIG. 4 , the terminal 110 is vertically pressed into the mold insert hole 210. The interference between the terminal 110 and the inner wall of the insert hole 210 will cause the electroplating layer on the terminal 110 to be scratched. Moreover, the two side surfaces of the terminal 110 inserted in the mold insert hole 210 are in direct surface contact with the inner wall of the insert hole 210. When the plastic part 120 is injection molded, the terminal 110 will be in close contact with the inner wall of the insert hole 210 due to thermal expansion and contraction. As a result, when demolding, the side surface of the terminal 110 will be pulled and scratched by the inner wall of the insert hole 210, resulting in a poor appearance of the injection molded product, an increase in the unqualified rate of the injection molded product, and an increase in the production cost of the enterprise. Summary of the invention

[0004] In view of this, the present invention proposes a mold insert slider structure to solve the problem in the prior art that when preparing connector products with bent hardware terminals overmolded, the electroplating layer on the hardware terminals is easily scratched by the inner wall of the mold insert hole, thereby affecting the defective rate of the injection molded products.

[0005] In order to solve the above technical problems, the technical solution of the present invention is as follows:

[0006] A mold insert slider structure, comprising:

[0007] An insert having a terminal mounting cavity with a side opening on one side;

[0008] Sliding seat;

[0009] A slider structure is slidably mounted on the slide seat and moves relatively close to or relatively away from the side opening of the terminal installation cavity along the guide direction of the slide seat under the action of a driving force; a clamping block is provided on the side wall of the slider structure close to the insert, which can extend into the terminal installation cavity and cooperate with the insert to clamp the terminal located in the terminal installation cavity.

[0010] Furthermore, the outer surface of the clamping block facing the insert is processed to form a clamping surface that matches the shape of the terminal located in the terminal installation cavity.

[0011] Furthermore, the pressing block is detachably connected to an adjusting block, and the adjusting block has a molding surface adapted to the outer shape of the terminal located in the terminal installation cavity.

[0012] Furthermore, a top opening communicating with the terminal installation cavity and allowing the terminal to be vertically inserted is provided on the top of the insert.

[0013] Furthermore, the insert is provided with air avoidance guide angles on both sides corresponding to the top opening.

[0014] Furthermore, the side opening is an expanded structure with a larger diameter outside and a smaller diameter inside, and the insert corresponding to the side opening is provided with a slider guide angle for guiding the slider structure from the side opening into the terminal installation cavity.

[0015] Furthermore, a plurality of the terminal installation cavities are arranged side by side on the insert, and a plurality of the clamping blocks are also arranged side by side on the slider structure, and the plurality of the clamping blocks and the plurality of the terminal installation cavities are matched one by one.

[0016] Furthermore, the slide seat is U-shaped, the slider structure is slidably installed on the U-shaped cavity of the slide seat, guide strips are respectively provided on the two opposite arms of the slide seat, and the opposite sides of the slider structure are provided with sliding grooves that slidably cooperate with the corresponding guide strips.

[0017] Furthermore, an inclined guide groove is provided on the slider structure, and the guiding direction of the inclined guide groove and the mold opening and closing direction form a preset angle. The inclined guide groove is slidably connected to a shovel that moves along the mold opening and closing direction, and the shovel has an inclined guide surface that cooperates with the inclined guide groove; buckles are provided on opposite sides of the shovel, and a groove is provided on the slider structure that is engaged with the buckle in the guiding direction of the guide strip and slidably cooperates with the buckle in the guiding direction of the inclined guide groove; the movement of the shovel along the mold opening and closing direction can drive the slider structure to be relatively close to or relatively away from the insert along the guiding direction of the guide strip.

[0018] Furthermore, a glass ball screw is provided on the sliding matching surface between the sliding seat and the sliding block structure.

[0019] The technical solution of the present invention has the following advantages:

[0020] 1. The insert slider structure of the mold provided by the present invention is provided with a terminal installation cavity with a side opening on one side of the insert. In the process of limiting and fixing the terminal, the terminal can be first installed into the terminal installation cavity from the side opening, and then the slider structure can be driven close to the side opening of the terminal installation cavity, so that the clamping block on the slider structure and the inner wall of the terminal installation cavity cooperate to clamp the terminal in the terminal installation cavity, and the side wall of the clamping block and the inner wall of the terminal installation cavity jointly form the insert hole of the terminal; this open insert slider structure can avoid scratches when the terminal is installed in the insert hole, and the slider structure can adjust the terminal gap inward or outward within the qualified range according to the deformation amount of injection molding, which can solve the deformation problem of the terminal; on the other hand, in the demolding process after the plastic part is injection molded, the slider structure is first driven relatively away from the insert, and then the connector with the terminal coated is ejected, which can avoid scratches on the terminal surface by the inner wall of the insert hole during the demolding process, thereby greatly improving the qualified rate of connector products, reducing the production cost of the enterprise, and enabling the mold structure to meet the mass production requirements.

[0021] 2. The insert slider structure of the mold provided by the present invention is that the clamping block is processed on the outer surface of the insert to form a clamping surface that is compatible with the shape of the terminal located in the terminal mounting cavity, so that the clamping block can better clamp the terminal located in the terminal mounting cavity and ensure that the deformation of the terminal due to thermal expansion and contraction is within a controllable range.

[0022] 3. The insert slider structure of the mold provided by the present invention, in which the adjusting block is detachably connected to the clamping block, makes it convenient to remove the adjusting block and process it to obtain a molding surface that matches the terminal shape. This not only makes the mold adjustment process more convenient, but also allows different adjusting blocks to be replaced according to terminals of different sizes and models to meet the production needs of different types of connector products.

[0023] 4. The insert slider structure of the mold provided by the present invention has an air-avoiding guide angle on the top opening of the insert, which facilitates the placement of the terminal into the terminal installation cavity and avoids scratches.

[0024] 5. The insert slider structure of the mold provided by the present invention and the setting of the slider guide angle on the part of the insert corresponding to the side opening facilitate the slider structure to be introduced into the terminal installation cavity from the side opening, reduce the scratches on the slider structure during the movement process, and improve the service life of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a schematic diagram of the structure of a connector product with bent terminals;

[0027] Figure 2 It is a schematic diagram of a hardware terminal in the prior art before being vertically pressed into a mold insert hole;

[0028] Figure 3 It is a schematic diagram of the assembly relationship between the hardware terminal of the connector and the insert hole on the mold in the prior art;

[0029] Figure 4 It is a schematic diagram of the installation structure of the hardware terminal in the insert hole in the prior art;

[0030] Figure 5 It is a schematic diagram of a hardware terminal insert slider structure of a connector product according to an embodiment of the present invention;

[0031] Figure 6 An exploded schematic diagram of an insert slider structure in an embodiment of the present invention;

[0032] Figure 7 It is a structural schematic diagram of a hardware terminal inserted in front of a terminal installation cavity of an insert in an embodiment of the present invention;

[0033] Figure 8 It is a structural schematic diagram of a hardware terminal inserted into a terminal installation cavity of an insert in an embodiment of the present invention;

[0034] Fig. 9 It is a top view of a hardware terminal inserted into a terminal mounting cavity of an insert according to an embodiment of the present invention.

[0035] Description of reference numerals: 100, connector; 110, terminal; 120, plastic part; 210, insert hole;

[0036] 1. Insert; 11. Terminal mounting cavity; 12. Side opening; 13. Top opening; 14. Slider guide angle; 2. Sliding seat; 21. Guide strip; 22. U-shaped cavity; 3. Slider structure; 31. Clamping block; 32. Slide groove; 33. Oblique guide groove; 34. Slot; 4. Shovel; 41. Oblique guide surface; 42. Buckle; 5. Glass bead screw. DETAILED DESCRIPTION

[0037] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention 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 cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0041] like Figure 5 -9 shows a mold insert slider structure, comprising an insert 1, a slide seat 2, a slider structure 3 and a shovel 4; wherein, a terminal installation cavity 11 having a side opening 12 is provided on the side of the insert 1 close to the slider structure 3; the slider structure 3 is slidably installed on the slide seat 2 and is relatively close to or relatively far from the side opening 12 of the terminal installation cavity 11 along the guide direction of the slide seat 2 under the action of the driving force. A pressing block 31 is provided on the side wall of the slider structure 3 close to the insert 1, which can extend into the terminal installation cavity 11 and cooperate with the insert 1 to press the terminal 110 located in the terminal installation cavity 11.

[0042] This insert slider structure is provided with a terminal mounting cavity 11 with a side opening 12 on one side of the insert 1. In the process of limiting and fixing the terminal 110, the terminal 110 can be first installed into the terminal mounting cavity 11 from the side opening 12, and then the slider structure 3 is driven close to the side opening 12 of the terminal mounting cavity 11, so that the clamping block 31 on the slider structure 3 and the inner wall of the terminal mounting cavity 11 cooperate to clamp the terminal 110 in the terminal mounting cavity 11, and the side wall of the clamping block 31 and the inner wall of the terminal mounting cavity 11 jointly form the insert 1 hole of the terminal 110. This open insert slider structure can avoid scratches when the terminal 110 is installed in the insert 1 hole, and the slider structure 3 can adjust the terminal 110 gap inward or outward according to the amount of deformation during injection molding to be within the qualified range, which can solve the deformation problem of the terminal 110; on the other hand, during the demolding process of the plastic part 120 after injection molding, the slider structure 3 is first driven relatively away from the insert 1, and then the connector 100 with the terminal 110 molded is ejected, which can avoid scratches on the surface of the terminal 110 by the inner wall of the insert 1 hole during the demolding process, thereby greatly improving the qualified rate of the connector 100 product, reducing the production cost of the enterprise, and enabling the mold structure to meet the mass production requirements.

[0043] In a specific implementation of this embodiment, the outer surface of the clamping block 31 facing the insert 1 is processed to form a clamping surface that matches the shape of the terminal 110 located in the terminal installation cavity 11. Processing the clamping surface on the clamping block 31 can enable the clamping block 31 to better clamp the terminal 110 located in the terminal installation cavity 11, ensuring that the deformation of the terminal 110 due to thermal expansion and contraction is within a controllable range.

[0044] In another specific implementation of the present embodiment, an adjustment block is detachably connected to the clamping block 31, and the adjustment block has a molding surface that matches the shape of the terminal 110 located in the terminal installation cavity 11. The way in which the adjustment block is detachably connected to the clamping block 31 makes it convenient to remove the adjustment block and process it to obtain a molding surface that matches the shape of the terminal 110, which not only makes the mold adjustment process more convenient, but also allows different adjustment blocks to be replaced according to terminals 110 of different sizes and models to meet the production needs of different types of connector 100 products.

[0045] Specifically, during the mold adjustment process, the inclination angle of the pressing surface or the molding surface can change the processing direction according to the size tolerance of the terminal 110, so that the gap between the pressing block 31 or the adjusting block pressing the terminal 110 is within the qualified range.

[0046] In this embodiment, the top of the insert 1 is provided with a top opening 13 which is communicated with the terminal installation cavity 11 and for vertical insertion of the terminal 110; the insert 1 is provided with air-avoidance guide angles on both sides corresponding to the top opening 13. The setting of the air-avoidance guide angles on the insert 1 facilitates the placement of the terminal 110 into the terminal installation cavity 11 to avoid scratches.

[0047] In this embodiment, the side opening 12 is a flared structure with a larger diameter outside and a smaller diameter inside, and a slider guide angle 14 is provided at a portion of the insert 1 corresponding to the side opening 12 for the slider structure 3 to be introduced from the side opening 12 into the terminal installation cavity 11. Preferably, the slider guide angle 14 is 10 degrees; the setting of the slider guide angle 14 facilitates the slider structure 3 to be introduced from the side opening 12 into the terminal installation cavity 11, reduces scratches during the movement of the slider structure 3, and increases the service life of the mold.

[0048] In this embodiment, three terminal installation cavities 11 are arranged side by side on the insert 1 , and three pressing blocks 31 are also arranged side by side on the slider structure 3 . The three pressing blocks 31 match the three terminal installation cavities 11 one by one.

[0049] Specifically, the slide 2 is U-shaped, the slider structure 3 is slidably mounted on the U-shaped cavity 22 of the slide 2, the two opposite arms of the slide 2 are respectively provided with guide bars 21 protruding toward the U-shaped cavity 22, and the two opposite sides of the slider structure 3 are provided with slide grooves 32 slidably matched with the corresponding guide bars 21. The structure in which the guide bars 21 cooperate with the slide grooves 32 can limit the slider structure 3 from sliding along the guide direction of the guide bars 21.

[0050] Specifically, the slider structure 3 is provided with an oblique guide groove 33, and the guiding direction of the oblique guide groove 33 and the mold opening and closing direction form a preset angle; wherein the mold opening and closing direction is perpendicular to the sliding direction of the slider structure 3. A shovel 4 that moves along the mold opening and closing direction is slidably connected in the oblique guide groove 33, and the shovel 4 has an oblique guide surface 41 that cooperates with the oblique guide groove 33. Buckles 42 are provided on opposite sides of the shovel 4, and a snap groove 34 that is snapped with the buckle 42 in the guiding direction of the guide bar 21 and slidably cooperates with the buckle 42 in the guiding direction of the oblique guide groove 33 is provided on the slider structure 3; the movement of the shovel 4 along the mold opening and closing direction can drive the slider structure 3 to be relatively close to or relatively away from the insert 1 along the guiding direction of the guide bar 21.

[0051] In this embodiment, a mounting groove is provided on the slide 2 corresponding to the bottom of the U-shaped cavity 22, a spring and a steel ball are provided in the mounting groove, the steel ball is embedded in the mounting groove and one end of the steel ball extends from the sliding matching surface between the slide 2 and the slider structure 3, and a concave surface matching the shape of the steel ball is provided at the bottom of the slider structure 3. When the slider structure 3 slides to a position where the pressing block 31 on it presses the terminal 110 located in the terminal installation cavity 11, the concave surface at the bottom of the slider structure 3 cooperates with the steel ball to position the slider structure 3, prevent the slider structure 3 from loosening, and enable the slider structure 3 to better press the terminal 110, thereby ensuring the molding quality of the product.

[0052] To summarize, the insert slider structure provided in the embodiment of the present invention adopts an open insert slider structure, and the inner wall of the insert 1 hole for the terminal 110 to be inserted is provided by the insert 1 and the slider structure 3, which can avoid scratches when the terminal 110 is installed in the insert 1 hole, and the slider structure 3 can adjust the terminal 110 gap inward or outward according to the amount of deformation during injection molding to be within a qualified range, which can solve the deformation problem of the terminal 110; and in the demolding process after the plastic part 120 is injection molded, the slider structure 3 is first driven relatively away from the insert 1, and then the connector 100 with the terminal 110 is ejected, which can avoid scratches on the surface of the terminal 110 by the inner wall of the insert 1 hole during the demolding process, thereby greatly improving the qualified rate of the connector 100 product, reducing the production cost of the enterprise, and enabling the mold structure to meet the mass production requirements.

[0053] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A mold insert slider structure, characterized in that: include: An insert (1) having a terminal installation cavity (11) with a side opening (12) provided on one side; Sliding seat (2); A slider structure (3) is slidably mounted on the slide seat (2) and, under the action of a driving force, moves relatively close to or relatively away from the side opening (12) of the terminal mounting cavity (11) along the guide direction of the slide seat (2); a clamping block (31) is provided on the side wall of the slider structure (3) close to the insert (1) and can extend into the terminal mounting cavity (11) and cooperate with the insert (1) to clamp the terminal (110) located in the terminal mounting cavity (11).

2. The insert slider structure of the mold according to claim 1, characterized in that: The outer surface of the pressing block (31) facing the insert (1) is processed to form a pressing surface that matches the outer shape of the terminal (110) located in the terminal installation cavity (11).

3. The insert slider structure of the mold according to claim 1, characterized in that: The pressing block (31) is detachably connected to an adjusting block, and the adjusting block has a molding surface that matches the shape of the terminal (110) located in the terminal installation cavity (11).

4. The insert slider structure of the mold according to any one of claims 1 to 3, characterized in that: The top of the insert (1) is provided with a top opening (13) which is in communication with the terminal installation cavity (11) and for the terminal (110) to be vertically inserted.

5. The insert slider structure of the mold according to claim 4, characterized in that: The insert (1) is provided with air avoidance guide angles on both sides corresponding to the top opening (13).

6. The mold insert slider structure according to any one of claims 1 to 3, characterized in that: The side opening (12) is an expanded structure with a larger diameter on the outside and a smaller diameter on the inside. The insert (1) is provided with a slider guide angle (14) at a position corresponding to the side opening (12) for guiding the slider structure (3) from the side opening (12) into the terminal installation cavity (11).

7. The mold insert slider structure according to any one of claims 1 to 3, characterized in that: A plurality of the terminal installation cavities (11) are arranged side by side on the insert (1), and a plurality of the clamping blocks (31) are also arranged side by side on the slider structure (3). The plurality of the clamping blocks (31) and the plurality of the terminal installation cavities (11) are matched one by one.

8. The insert slider structure of the mold according to any one of claims 1 to 3, characterized in that: The slide seat (2) is U-shaped, and the slider structure (3) is slidably mounted on the U-shaped cavity (22) of the slide seat (2). Two opposite arms of the slide seat (2) are respectively provided with guide strips (21), and two opposite sides of the slider structure (3) are provided with slide grooves (32) that slidably cooperate with the corresponding guide strips (21).

9. The insert slider structure of the mold according to claim 8, characterized in that: The slider structure (3) is provided with an inclined guide groove (33), the guiding direction of the inclined guide groove (33) and the mold opening and closing direction form a preset angle, the inclined guide groove (33) is slidably connected to a shovel (4) that moves along the mold opening and closing direction, the shovel (4) having an inclined guide surface (41) that cooperates with the inclined guide groove (33); buckles (42) are provided on opposite sides of the shovel (4), and the slider structure (3) is provided with a clamping groove (34) that is buckled with the buckle (42) in the guiding direction of the guide strip (21) and slidably cooperates with the buckle (42) in the guiding direction of the inclined guide groove (33); the movement of the shovel (4) in the mold opening and closing direction can drive the slider structure (3) to be relatively close to or relatively away from the insert (1) along the guiding direction of the guide strip (21).

10. The mold insert slider structure according to any one of claims 1 to 3, characterized in that: A glass ball screw (5) is provided on the sliding matching surface between the sliding seat (2) and the sliding block structure (3).

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