Threaded cap forming die

Abstract

The utility model relates to the technical field of dies, and particularly discloses a threaded cap forming die which comprises a front die assembly, a rear die assembly and a threaded cap forming die, the ejector pin assembly is used for ejecting out the threaded cover; the rear mold assembly comprises a first fixing plate, a second fixing plate, a third fixing plate and a fourth fixing plate which are sequentially arranged from top to bottom, a rear mold core is fixed to the first fixing plate, the front mold core and the rear mold core are used for defining a formed threaded cover, and the first fixing plate is provided with a reset rod meson; the reset rod meson is connected with a reset rod connected with the ejector pin assembly. The pop-up assembly comprises an elastic piece which is arranged in the second fixing plate and abuts against the first fixing plate and the third fixing plate; and the rifle rod core-pulling assembly is used for forming threads of the threaded cover and releasing the threads. According to the utility model, the problem that potential safety hazards are possibly caused due to the fact that a traditional automatic thread stripping mold needs to be provided with an oil cylinder which is much higher than the traditional automatic thread stripping mold is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a threaded cover forming mold. Background Art

[0002] Molds are important tools used for molding in industrial production and are widely used in many fields such as plastic products, metal products, automobiles, casting, etc. The development background of molds is closely related to the needs of modern manufacturing. With the rapid development of plastics, rubber, automobile and electronics industries, mold manufacturing technology has also been significantly improved. Among them, when producing products with threads, such as Figure 1 The threaded cap shown in the figure needs to be designed with a mold that can automatically remove the threads from the mold in order to improve production efficiency. The existing automatic thread removal mold uses a cylinder and a rack to remove the threads from the mold. This method requires the mold to be installed with a cylinder that is much higher than the mold, which may cause safety hazards. Utility Model Content

[0003] In order to solve the problem that a traditional automatic thread stripping and demoulding mold needs to be installed with a cylinder that is much higher than the mold, which may cause safety hazards, the utility model provides a threaded cover forming mold.

[0004] In order to solve the above problems, the present invention adopts the following technical solutions:

[0005] The embodiment of the present invention provides a threaded cover forming die, comprising:

[0006] A front mold assembly, the front mold assembly comprising a front mold core;

[0007] Ejector pin assembly, used to eject the threaded cover;

[0008] A rear mold assembly, the rear mold assembly including a first fixing plate, a second fixing plate, a third fixing plate, and a fourth fixing plate arranged in sequence from top to bottom, the first fixing plate being fixed with a rear mold core, the front mold core and the rear mold core being used to enclose and form a threaded cover, the first fixing plate being provided with a reset rod meson, the reset rod meson being connected to a reset rod connected to the ejector assembly;

[0009] a pop-up assembly, the pop-up assembly comprising an elastic member disposed in the second fixing plate and abutting against the first fixing plate and the third fixing plate;

[0010] Rifle rod core pulling assembly, used for forming thread of threaded cap and removing thread.

[0011] According to some embodiments of the present invention, the pop-up assembly further includes a driving screw for limiting the pop-up distance of the first fixing plate, and the driving screw passes through the first fixing plate and the elastic member and is fixed to the third fixing plate.

[0012] According to some embodiments of the present invention, a plug screw installation slot is provided on the first fixing plate.

[0013] According to some embodiments of the present invention, the rear mold core is provided with a rotation-stop structure for limiting the rotation of the threaded cap.

[0014] According to some embodiments of the present invention, a groove is provided at the bottom of the threaded cover, and the anti-rotation structure is a protrusion that matches the groove.

[0015] According to some embodiments of the present invention, the groove is cylindrical, and the protrusion is a cylinder matching the groove.

[0016] According to some embodiments of the present invention, the anti-rotation structure is symmetrically arranged along the axis of the threaded cover.

[0017] According to some embodiments of the present invention, the rifle rod core-pulling assembly includes a first rifle rod passing through the second fixed plate, the third fixed plate and the fourth fixed plate, and a second rifle rod passing through the rear mold assembly, and the first rifle rod and the second rifle rod are connected by gears.

[0018] According to some embodiments of the present invention, the second rifle rod is matched with the rear mold core at an inclination.

[0019] According to some embodiments of the present invention, a sprocket is fixed to the bottom of the first rifle rod, and the rifle rod core-pulling assembly further includes a driving member for driving the sprocket.

[0020] The present invention has at least the following beneficial effects: when the mold is closed, the front mold core and the rear mold core cooperate with each other to form the cavity of the threaded cap and, together with the rifle rod core-pulling assembly, form the threaded cap. When the mold is opened, the rifle rod core-pulling assembly is activated, and the threaded cap, the rear mold core, and the first fixed plate are ejected by the ejection assembly. When the rifle rod core-pulling assembly is disengaged from the thread, the ejector assembly moves forward due to the action of the reset rod and ejects the threaded cap. When the mold is closed, the front mold assembly presses the first fixed plate back into place and injection molding is resumed. The present invention demolds the threaded cap by moving the first fixed plate. This threaded cap molding mold has a simple structure, can improve the production efficiency of the threaded cap, and enhances the safety of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the structure of the threaded cover;

[0022] Figure 2 This is a structural diagram of an embodiment of the utility model;

[0023] Figure 3This is an exploded schematic diagram of an embodiment of the present utility model;

[0024] Figure 4 This is a structural diagram of the rear mold core according to an embodiment of the present invention;

[0025] Figure 5 This is a structural diagram of the first fixed plate, rear mold core and rifle rod core pulling assembly in one embodiment of the present utility model;

[0026] Figure 6 for Figure 5 A magnified image of the marker;

[0027] Figure 7 This is a structural diagram of a plug screw according to an embodiment of the present invention;

[0028] Figure 8 This is a structural diagram of a reset rod meson according to an embodiment of the present utility model;

[0029] Figure 9 This is a cross-sectional view of the second rifle rod and the rear mold core of an embodiment of the present utility model. DETAILED DESCRIPTION

[0030] The following description of the present invention, with reference to the accompanying drawings, is provided to facilitate a more comprehensive understanding of the various embodiments of the present invention as defined in the claims and their equivalents. The description includes various specific details to assist understanding, but these details should be construed as merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications may be made to the various embodiments described herein without departing from the scope and spirit of the present invention.

[0031] In the description of the present invention, descriptions of directions, such as up, down, front, back, left, right, etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as a limitation on the present invention.

[0032] It will be understood that when one element (e.g., a first element) is “connected” to another element (e.g., a second element), the element may be directly connected to the other element or an intervening element (e.g., a third element) may be present between the element and the other element.

[0033] The embodiment of the present utility model provides a threaded cover forming die, such as Figure 2-9 Shown, including:

[0034] The front mold assembly 100 includes a front mold core 110;

[0035] Ejector assembly 200, used to eject the threaded cover;

[0036] The rear mold assembly 300 includes a first fixing plate 310, a second fixing plate 320, a third fixing plate 330, and a fourth fixing plate 340, which are arranged in order from top to bottom. The rear mold core 350 is fixed to the first fixing plate 310. The front mold core 110 and the rear mold core 350 are used to enclose and form the threaded cap. The first fixing plate 310 is provided with a reset rod meson 360, which is connected to the reset rod meson 360 and is connected to the reset rod 400 connected to the ejector assembly 200.

[0037] The pop-up assembly 500 includes an elastic member 510 disposed in the second fixing plate 320 and abutting against the first fixing plate 310 and the third fixing plate 330 ;

[0038] The Rifle Rod Core Pulling Assembly 600 is used to form and remove threads from threaded caps.

[0039] The ejector assembly 200 ejects the threaded cap from the mold after the molding process is complete. Ejectors are commonly used components in injection molds, used to push the molded product out of the mold. The rear mold assembly 300 comprises, from top to bottom, a first fixing plate 310, a second fixing plate 320, a third fixing plate 330, and a fourth fixing plate 340. The rear mold core 350 is fixed to the first fixing plate 310 and, together with the front mold core 110, forms the threaded cap. The first fixing plate 310 also features a reset lever 360, which connects to the reset lever 400, which is connected to the ejector assembly 200. The ejector assembly 500, located within the second fixing plate 320, includes a resilient member 510, such as a spring. These members 510 push the first fixing plate 310 away from the other fixing plates when the mold opens, thereby releasing the threaded cap from the mold. The rifle lever core assembly 600 forms the threaded portion of the threaded cap and facilitates its removal after molding.

[0040] The working principle of this utility model is as follows:

[0041] When the mold is closed, the front mold core 110 and the rear mold core 350 cooperate to form the cavity for the threaded cap and, together with the rifle rod core puller assembly 600, form the threaded cap. When the mold is opened, the rifle rod core puller assembly 600 activates, and the threaded cap, rear mold core 350, and first fixed plate 310 are ejected by the ejection assembly 500. Once the rifle rod core puller assembly 600 is freed from the threads, the ejector assembly 200, activated by the reset rod 400, moves forward and ejects the threaded cap. When the mold is closed, the front mold assembly 100 resets the first fixed plate 310, and injection molding is resumed.

[0042] The present invention demolds the threaded cap by moving the first fixed plate 310, allowing the rifle lever core puller assembly 600 to rotate only during operation. This facilitates control of the position of the rifle lever core puller assembly 600 and prevents loss of control of the rifle lever core puller assembly 600, which could lead to erosion between the rifle lever core puller assembly 600 and the mold core. This threaded cap molding mold has a simple structure, improves threaded cap production efficiency, and enhances mold safety.

[0043] In some embodiments, the pop-up assembly 500 further includes a driving screw 520 for limiting the pop-up distance of the first fixing plate 310 . The driving screw 520 passes through the first fixing plate 310 and the elastic member 510 and is fixed on the third fixing plate 330 .

[0044] The piercing screw 520 is a position-limiting screw that passes through the first fixing plate 310 and the spring and is secured to the third fixing plate 330. The piercing screw 520 limits the ejection distance of the first fixing plate 310, ensuring that it does not move excessively during the ejection process, thereby preventing damage to the mold or compromising product quality.

[0045] Furthermore, a driving screw installation slot 370 is provided on the first fixing plate 310 .

[0046] The jackscrew mounting slot 370 is a slot on the first fixing plate 310 for mounting a jackscrew 520. The mounting slot and the jackscrew 520 work together to limit the ejection distance of the first fixing plate 310, ensuring the stability and consistency of the ejection assembly 500.

[0047] In some embodiments, the rear mold core 350 is provided with a rotation-stopping structure 380 for limiting the rotation of the threaded cap.

[0048] The main function of the anti-rotation structure 380 is to prevent the threaded cover from rotating during the operation of the rifle rod core pulling assembly 600. The anti-rotation structure 380 can be as follows:

[0049] 1. Design inner grooves on the rear mold core 350. The corresponding parts of the threaded cap will match these grooves during molding, thereby limiting rotation.

[0050] 2. Design protrusions on the rear mold core 350. These protrusions will contact the inner surface of the threaded cap during molding to prevent rotation.

[0051] 3. By designing an asymmetrical shape on the rear mold core 350, the rotation of the threaded cap can be naturally restricted during the molding process.

[0052] Furthermore, a groove 11 is provided at the bottom of the threaded cap, and the anti-rotation structure 380 is a protrusion 390 that matches the groove 11. The groove 11 at the bottom of the threaded cap is designed to match the protrusion 390 of the rear mold core 350.

[0053] Furthermore, the groove 11 is cylindrical, and the protrusion 390 is a cylinder matching the groove 11 .

[0054] In some embodiments, the anti-rotation structure 380 is symmetrically arranged along the axis of the threaded cap.

[0055] Symmetrical arrangement along the axis of the threaded cover can ensure uniform cooperation between the threaded cover and the anti-rotation structure 380 and improve the anti-rotation effect.

[0056] In some embodiments, the rifle rod core pulling assembly 600 includes a first rifle rod 610 passing through the second fixing plate 320, the third fixing plate 330 and the fourth fixing plate 340 and a second rifle rod 620 passing through the rear mold assembly 300, and the first rifle rod 610 and the first rifle rod 610 are connected by a gear 630.

[0057] The first rifle lever 610 and the second rifle lever 620 are connected by a gear 630. This design ensures the synchronous movement of the two rifle levers. The gear 630 connection can be direct or achieved by a chain, belt or other mechanical transmission method.

[0058] Furthermore, the second rifle rod 620 is matched with the rear mold core 350 at an angle.

[0059] The slope of the rear mold core 350 is designed to align with the slope of the second rifle rod 620. When the mold is opened, this slope ensures that the second rifle rod 620 is smoothly withdrawn from the threaded cap during core extraction, minimizing friction and damage during demolding. This slope reduces the force required for core extraction, thereby improving production efficiency.

[0060] In some embodiments, a sprocket 640 is fixed to the bottom of the first rifle rod 610 , and the rifle rod core pulling assembly 600 further includes a driving member 650 for driving the sprocket 640 .

[0061] A sprocket 640 fixed to the bottom of the first rifle bar 610 is used to engage with a driver 650 to transmit power. The driver 650 can be a motor, a cylinder, or other mechanical device that provides power to drive the sprocket 640, thereby driving the movement of the first rifle bar 610.

[0062] The terms and words used in the above description and claims are not limited to their literal meanings, but are merely used by the applicant to enable a clear and consistent understanding of the present invention. Therefore, it should be clear to those skilled in the art that the above description of various embodiments of the present invention is provided for illustration only and is not intended to limit the present invention as defined in the appended claims and their equivalents.

Claims

1. A threaded cap forming die, characterized in that: include: A front mold assembly (100), wherein the front mold assembly (100) includes a front mold core (110); An ejector pin assembly (200) for ejecting the threaded cover (10); A rear mold assembly (300), the rear mold assembly (300) comprising a first fixing plate (310), a second fixing plate (320), a third fixing plate (330) and a fourth fixing plate (340) arranged in sequence from top to bottom, a rear mold core (350) being fixed on the first fixing plate (310), the front mold core (110) and the rear mold core (350) being used to enclose and form a threaded cover (10), the first fixing plate (310) being provided with a reset rod meson (360), the reset rod meson (360) being connected to a reset rod (400) connected to the ejector pin assembly (200); A pop-up assembly (500), the pop-up assembly (500) comprising an elastic member (510) disposed in the second fixing plate (320) and abutting against the first fixing plate (310) and the third fixing plate (330); The invention relates to a rifle rod core pulling assembly (600) for forming threads of a threaded cover (10) and removing the threads.

2. A threaded cap forming die according to claim 1, characterized in that: The pop-up assembly (500) further includes a driving screw (520) for limiting the pop-up distance of the first fixing plate (310), wherein the driving screw (520) passes through the first fixing plate (310) and the elastic member (510) and is fixed to the third fixing plate (330).

3. A threaded cap forming die according to claim 2, characterized in that: The first fixing plate (310) is provided with a plug screw installation slot (370).

4. A threaded cap forming die according to any one of claims 1 to 3, characterized in that: The rear mold core (350) is provided with a rotation-stopping structure (380) for limiting the rotation of the threaded cover (10).

5. The threaded cap forming mold according to claim 4, characterized in that: The bottom of the threaded cover (10) is provided with a groove (11), and the anti-rotation structure (380) is a protrusion (390) that matches the groove (11).

6. The threaded cap forming mold according to claim 5, characterized in that: The groove (11) is cylindrical, and the protrusion (390) is a cylinder matching the groove (11).

7. The threaded cap forming mold according to claim 4, characterized in that: The anti-rotation structure (380) is symmetrically arranged along the axis of the threaded cover (10).

8. The threaded cap forming die according to any one of claims 1 to 3, characterized in that: The rifle rod core-pulling assembly (600) includes a first rifle rod (610) passing through the second fixing plate (320), the third fixing plate (330) and the fourth fixing plate (340), and a second rifle rod (620) passing through the rear mold assembly (300), and the first rifle rod (610) and the second rifle rod (610) are connected via a gear (630).

9. The threaded cap forming die according to claim 8, characterized in that: The second rifle rod (620) is matched with the rear mold core (350) at an angle.

10. The threaded cap forming mold according to claim 8, characterized in that: A sprocket (640) is fixed to the bottom of the first rifle rod (610), and the rifle rod core-pulling assembly (600) further comprises a driving member (650) for driving the sprocket (640).

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