Precise plastic part integrated forming mold

Abstract

The utility model relates to the field of dies, and discloses a precise plastic part integral forming die which comprises a main body component and an improved component, the main body component comprises a lower die, four corners of the top end of the lower die are connected with sliding rods, the sliding rods are connected with an upper die in a penetrating mode, a stamping head is arranged below the upper die, and a transverse sliding groove is formed in the bottom end of the upper die; the improved component comprises two limiting plates which are clamped and slidably connected to the lower portion of the upper die through sliding grooves and are symmetrical about the stamping head, and the bottom ends of the limiting plates are higher than the bottom end of the stamping head. Meanwhile, the upper die is further provided with a driving mechanism used for driving the two limiting plates to move in the opposite directions along the sliding grooves at the same time. Under the action of the driving mechanism, the two limiting plates can be driven to move in the opposite directions along the sliding grooves at the same time, and therefore the two limiting plates can clamp a punching head. In this way, the stamping head can be disassembled and assembled through mutual separation and mutual approaching of the two limiting plates, and convenience and rapidness are achieved.

Description

Technical Field

[0001] The utility model belongs to the field of molds, in particular to a precision plastic part integral molding mold. Background Art

[0002] The stamping die mainly includes an upper die assembly, a lower die assembly and a force transmission mechanism. The upper die assembly includes an upper die seat, a trimming upper die tool, a first driver and a first cushion block. The lower die assembly includes a lower die seat and a trimming lower die tool. The force transmission mechanism includes a second cushion block. By arranging the first driver on the upper die seat, the first cushion block connected to the first driver and the second cushion block arranged on the power input end of the force transmission mechanism, the function switching of whether to perform trimming operation on the workpiece can be realized.

[0003] The stamping die uses a punch head to perform stamping. Every time a stamping is performed, the punch head will produce stamping between the product, and after long-term use, it will wear out. However, when replacing the punch head, since the punch head and the die are tightly connected, it is very inconvenient to disassemble. In response to this problem, a stamping die with a replaceable stamping die head is proposed in a Chinese patent with announcement number CN217912495U, which screws the punch head together for quick disassembly. However, the screw-tightened die needs to be screwed in every time it is disassembled and assembled, and its replacement is not as convenient as imagined. Utility Model Content

[0004] Technical problem to be solved: How to quickly replace the punch head.

[0005] Technical solution: The utility model provides an integrated molding die for precision plastic parts, including a main component and an improved component: the main component includes a lower mold, the four corners of the top of the lower mold are connected to sliding rods, the sliding rods pass through and connect to the upper mold, a punch head is arranged below the upper mold, and a transverse sliding groove is provided at the bottom end of the upper mold; the improved component includes two limit plates symmetrical about the punch head and with the bottom end higher than the bottom end of the punch head, which are slidably connected to the bottom of the upper mold through the sliding groove; at the same time, the upper mold is also provided with a driving mechanism for driving the two limit plates to move in opposite directions simultaneously along the sliding groove.

[0006] Furthermore, the driving mechanism includes a bearing seat installed in the middle of the slide groove, the bearing seat is connected to a bidirectional screw rod located in the slide groove, and both ends of the bidirectional screw rod are connected to a handwheel located outside the upper mold; in addition, the top of the limit plate is connected to a sliding block located in the slide groove and threaded through the bidirectional screw rod.

[0007] Furthermore, the bearing seat is mainly composed of an outer shell and a bearing located in the outer shell. The outer wall of the outer shell is fixedly connected to the inner wall of the slide groove, and its inner wall is fixed to the outer ring of the bearing. The inner ring of the bearing is penetrated by the bidirectional screw after interference fit.

[0008] Furthermore, the top of the hand wheel is higher than the top of the upper die. On this basis, the top of the upper die is also provided with a limiting mechanism for limiting accidental rotation of the hand wheel.

[0009] Furthermore, the limiting mechanism includes a connecting seat installed on the top of the upper mold, and the outer side of the connecting seat is fixedly connected to the horizontal cylinder; at the same time, a connecting hole that can be passed through the telescopic end of the cylinder is opened on the hand wheel.

[0010] Furthermore, two guide grooves symmetrical to the slide groove are provided at the bottom end of the upper die; meanwhile, the top end of the limit plate is symmetrically connected to two guide blocks which are respectively slidably connected to the corresponding guide grooves.

[0011] Technical effect: In the utility model, under the action of the driving mechanism, the two limit plates can be driven to move in opposite directions along the slide slot at the same time, so that the two limit plates can clamp the punch head. In this way, the punch head can be disassembled and installed by moving the two limit plates away from and close to each other, which is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0014] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the driving mechanism structure of the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the limiting mechanism of the utility model;

[0017] In the figure: 1. lower die; 2. slide bar; 3. upper die; 4. slide groove; 5. limit plate; 6. punch head; 7. drive mechanism; 701. bearing seat; 702. bidirectional screw rod; 703. hand wheel; 704. slide block; 8. limit mechanism; 801. connecting seat; 802. cylinder; 803. connecting hole; 9. guide groove; 10. guide block. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0019] The precision plastic parts integrated molding die provided in this specific embodiment is as follows: Figure 1 and Figure 2 As shown, it includes a main component and an improved component, wherein:

[0020] The main component includes a lower die 1, the four corners of the top of the lower die 1 are connected to a slide bar 2, the slide bar 2 is connected to an upper die 3, a punch head 6 for punching is arranged below the upper die 3, and a transverse slide groove 4 is also provided at the bottom end of the upper die 3.

[0021] The improved component includes two limit plates 5 symmetrical about the punch head 6 and having their bottom ends higher than the bottom end of the punch head 6, which are slidably connected to the upper die 3 through the slide groove 4; at the same time, the upper die 3 is also provided with a driving mechanism 7 for driving the two limit plates 5 to move in opposite directions along the slide groove 4 at the same time. Figure 3 As shown, the driving mechanism 7 includes a bearing seat 701 installed in the middle of the slide 4, and the bearing seat 701 is connected to the bidirectional screw 702 located in the slide 4. Specifically, the bearing seat 701 is mainly composed of a shell and a bearing located in the shell. The outer wall of the shell is fixedly connected to the inner wall of the slide 4, and its inner wall is fixed to the outer ring of the bearing. The inner ring of the bearing and the bidirectional screw 702 are interferingly fitted and intersected. Both ends of the bidirectional screw 702 are connected to the handwheel 703 located outside the upper mold 3; in addition, the top of the limit plate 5 is connected to a slider 704 located in the slide 4 and threadedly intersecting the bidirectional screw 702. In this way, by rotating the bidirectional screw 702, the two sliders 704 that are restricted from rotating can drive the two limit plates 5 to move closer to each other or away from each other, so as to facilitate the disassembly and assembly of the punch head 6.

[0022] In addition, if Figure 3 As shown, the top of the hand wheel 703 is higher than the top of the upper die 3. On this basis, in order to prevent the hand wheel 703 from accidentally rotating, thereby causing the punch head 6 to loosen, a limiting mechanism 8 for limiting the accidental rotation of the hand wheel 703 is also provided at the top of the upper die 3. Figure 4 As shown, the limiting mechanism 8 includes a connection seat 801 installed at the top of the upper mold 3, and the outer side of the connection seat 801 is fixedly connected to the horizontal cylinder 802; at the same time, a connection hole 803 is opened on the hand wheel 703 through which the telescopic end of the cylinder 802 can pass. When the hand wheel 703 is not used, the telescopic end of the cylinder 802 passes through the connection hole 803 to limit the rotation of the hand wheel 703.

[0023] It is worth mentioning that two guide grooves 9 are provided at the bottom of the upper mold 3 and are symmetrical with respect to the slide groove 4; at the same time, two guide blocks 10 are symmetrically connected to the top of the limit plate 5 and are respectively slidably connected to the corresponding guide grooves 9. The two cooperate to form a guide mechanism, which can prevent the limit plate 5 from shaking when moving.

[0024] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0025] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A precision plastic part one-piece molding die, comprising a main component and an improved component: The main component comprises a lower die (1), the four corners of the top of the lower die (1) are connected to a slide bar (2), the slide bar (2) is connected to an upper die (3), and a punch head (6) is arranged below the upper die (3), characterized in that: A transverse slide groove (4) is provided at the bottom end of the upper mold (3); The improved component comprises two limit plates (5) which are symmetrical about the punch head (6) and have their bottom ends higher than the bottom end of the punch head (6) and are slidably connected to the bottom of the upper die (3) through a slide groove (4); at the same time, a driving mechanism (7) is also provided on the upper die (3) for driving the two limit plates (5) to move simultaneously in opposite directions along the slide groove (4).

2. The precision plastic parts integrated molding die according to claim 1, characterized in that: The driving mechanism (7) comprises a bearing seat (701) installed in the middle of the slide groove (4), the bearing seat (701) is connected to a bidirectional screw rod (702) located in the slide groove (4), and both ends of the bidirectional screw rod (702) are connected to a hand wheel (703) located outside the upper mold (3); in addition, the top end of the limit plate (5) is connected to a slider (704) located in the slide groove (4) and threadedly penetrated by the bidirectional screw rod (702).

3. The precision plastic parts integrated molding die according to claim 2, characterized in that: The bearing seat (701) is mainly composed of a shell and a bearing located in the shell. The outer wall of the shell is fixedly connected to the inner wall of the slide groove (4), and its inner wall is fixed to the outer ring of the bearing. The inner ring of the bearing and the bidirectional screw rod (702) are interference fit and penetrate each other.

4. The precision plastic part integral molding die according to claim 2, characterized in that: The top of the hand wheel (703) is higher than the top of the upper die (3). On this basis, the top of the upper die (3) is also provided with a limiting mechanism (8) for limiting accidental rotation of the hand wheel (703).

5. The precision plastic part integral molding die according to claim 4, characterized in that: The limiting mechanism (8) includes a connecting seat (801) installed at the top of the upper mold (3), and the outer side of the connecting seat (801) is fixedly connected to the horizontal cylinder (802); at the same time, a connecting hole (803) is opened on the hand wheel (703) through which the telescopic end of the cylinder (802) can pass.

6. The precision plastic integral molding die according to claim 2, characterized in that: The bottom end of the upper die (3) is provided with two guide grooves (9) symmetrical with respect to the slide groove (4); at the same time, the top end of the limit plate (5) is symmetrically connected with two guide blocks (10) which are respectively slidably connected with the corresponding guide grooves (9).

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