A processing mold for synchronously withdrawing, spinning off and ejecting products on the glue inlet side

Abstract

The present invention discloses a processing mold for synchronously retreating, unscrewing and ejecting products on the glue inlet side, comprising a female mold component, a male mold component and a rear mold plate, wherein the female mold component comprises a mold plate component provided with a plurality of mold cavities, a thread-removing component and a core having one end extending into a corresponding mold cavity; the thread-removing component comprises a first ejector plate component movable between the mold plate component and the rear mold plate, the other end of the core passes through the first ejector plate component and is rotatably connected thereto, and the core moves synchronously with the first ejector plate component relative to the mold plate component while the core rotates synchronously relative to the first ejector plate component. The thread-removing mechanism is used to realize the simultaneous retreat of the core and unscrewing of the product, so that the mold structure is more stable, the maintenance time is shorter, the processing efficiency is high, and the cost is saved.

Description

Technical Field

[0001] The invention relates to a processing mould for synchronously withdrawing, twisting off and ejecting a product at a glue inlet side, belonging to the technical field of mould structure innovation. 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, smelting, stamping and other methods. In short, molds are tools used to shape objects. This tool is composed of various parts, and different molds are composed of different parts. It mainly realizes the processing of the shape of objects by changing the physical state of the molded material, and is known as the "mother of industry".

[0003] The threaded mold is mainly a kind of equipment for producing parts with certain thread shape requirements. After the parts are formed, the threaded mold generally uses a push plate to force demoulding, or the threaded parts rotate backward on the male mold side to achieve demoulding. When the push plate is used for demoulding, the push plate contacts the product and exerts a certain force on the product to force the product to separate from the mold, causing a certain degree of deformation of the product where the product contacts the push plate, which may even affect the quality of the product in severe cases. Moreover, when the thread is unscrewed and the threaded parts are set on the female mold side, the thread sleeve can only be used to achieve backward demoulding, which has great limitations. For example, the height position of the thread cannot be completely consistent (due to the positioning relationship of the tooth sleeve), the thread sleeve is easy to wear and the consistency is worse, the cooling method is single, more restricted by space, and the cycle is longer, and the installation is complicated. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a processing mold with synchronous retreat, unscrewing and ejection of the product on the glue feeding side. The core is retreated and the product is unscrewed at the same time through the thread stripping mechanism. The mold structure is more stable, the maintenance time is shorter, the processing efficiency is high, and the cost is saved.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A processing mold for synchronously retracting, unscrewing and ejecting a product on the glue feeding side comprises a female mold component, a male mold component and a rear mold plate, wherein the female mold component comprises a mold plate component provided with a plurality of mold cavities, a thread stripping component and a core having one end extending into the corresponding mold cavity; the thread stripping component comprises a first ejector plate component movable between the mold plate component and the rear mold plate, the other end of the core passes through the first ejector plate component and is rotatably connected thereto, and the core moves synchronously with the first ejector plate component relative to the mold plate component while the core rotates synchronously relative to the first ejector plate component.

[0007] The aforementioned processing mold for synchronous retraction, unscrewing and ejection of the product on the glue feeding side is characterized in that: the thread stripping assembly also includes a second ejector plate assembly arranged between the first ejector plate assembly and the template assembly and a cylinder assembly for driving the second ejector plate assembly to move, the second ejector plate assembly is fixedly connected to a rear mold insert having one end extending into the first ejector plate assembly, and the first ejector plate assembly is provided with a synchronous retraction gear set threadedly connected to the rear mold insert.

[0008] The aforementioned processing mold with synchronous backward rotation and ejection of the product on the glue feeding side is characterized in that: the second ejector plate assembly and the male mold assembly are connected by a connecting rod passing through the template assembly, and the cylinder assembly is arranged on the rear template, and the ejector rod of the cylinder assembly passes through the first ejector plate assembly to the second ejector plate assembly and is fixedly connected thereto.

[0009] The aforementioned processing mold for synchronous retreat, unscrewing and ejection of the product on the glue feeding side is characterized in that: the part of the core inserted into the first ejector plate assembly is provided with threaded teeth fixedly connected to it, and the threaded teeth and the synchronous retreat gear set are synchronously driven by the first rack.

[0010] The aforementioned processing mold for synchronous backward unscrewing and ejection of the product on the glue feeding side is characterized in that: the first ejector plate assembly is also provided with a first transition tooth meshing with the threaded tooth, the first transition tooth is fixed to the lower end of the support rod, the upper end of the support rod is fixedly connected with a second transition tooth, and a third transition tooth meshing with each other is provided between the second transition tooth and the first rack.

[0011] The aforementioned processing mold for synchronous backward rotation and ejection of the product on the glue feeding side is characterized in that: a fixed plate is fixedly connected to the side of the mother mold assembly, and the outer side of the fixed plate is connected to a movable plate that can move relative to it through a plurality of guide pillars, one end of the first rack passes through the fixed plate to the movable plate and is fixedly connected to the movable plate, a second rack with one end passing through the movable plate is fixedly connected to the fixed plate, and a driving gear assembly meshing with the second rack is also provided on the movable plate, and a servo motor is connected to the driving gear assembly.

[0012] The beneficial effects of the present invention are: the core can be retracted and the product can be screwed off at the same time by means of the thread stripping mechanism, the mold structure is more stable, the maintenance time is shorter, the processing efficiency is high, and the cost is saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of a processing mold for synchronously withdrawing, twisting off and ejecting the product on the glue feeding side of the present invention;

[0014] Figure 2It is a first cross-sectional view of a processing mold for synchronously withdrawing, twisting off and ejecting a product on the glue feeding side of the present invention;

[0015] Figure 3 It is a second cross-sectional view of a processing mold for synchronously withdrawing, twisting off and ejecting a product on the glue feeding side of the present invention;

[0016] Figure 4 It is a third cross-sectional view of a processing mold for synchronously withdrawing, twisting off and ejecting a product on the glue feeding side of the present invention;

[0017] Figure 5 It is a schematic diagram of a processing mold in which the product on the glue feeding side is withdrawn, twisted off and ejected synchronously in the mold opening state of the present invention;

[0018] Figure 6 It is a top view of a processing mold for synchronously withdrawing, twisting off and ejecting the product on the glue feeding side of the present invention;

[0019] Figure 7 yes Figure 6 Middle AA section view;

[0020] Figure 8 It is a structural schematic diagram of a thread-removing assembly of a processing mold for synchronously removing and ejecting the product on the glue-feeding side of the present invention;

[0021] Fig. 9 yes Figure 8 A magnified schematic diagram of B. DETAILED DESCRIPTION

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] like Figure 1-Figure 9 As shown, a processing mold for synchronous backward unscrewing and ejection of a product on the glue feeding side includes a female mold component 1, a male mold component 2 and a rear mold plate 3, wherein the female mold component 1 includes a mold plate component 10 provided with a plurality of mold cavities, a thread stripping component and a core 13 with one end extending into the corresponding mold cavity; the thread stripping component includes a first ejector plate component 11 movable between the mold plate component 10 and the rear mold plate 3, the other end of the core 13 passes through the first ejector plate component 11 and is rotatably connected thereto, and the core 13 moves synchronously with the first ejector plate component 11 relative to the mold plate component 10, and the core 13 rotates synchronously relative to the first ejector plate component 11.

[0024] After the injection molding is completed, the core 13 is pulled out of the mold cavity by driving the first ejector plate assembly 11 backward. While the core 13 is pulled out, it is driven to rotate, so that the screwing and ejection are synchronized to complete the thread demoulding.

[0025] In this embodiment, the dethreading assembly also includes a second ejector plate assembly 12 arranged between the first ejector plate assembly 11 and the template assembly 10 and a cylinder assembly 14 for driving the second ejector plate assembly 12 to move, and the second ejector plate assembly 11 is fixedly connected to a rear mold insert 17 with one end extending into the first ejector plate assembly 11, and the first ejector plate assembly 11 is provided with a synchronous retracting gear set 18 threadedly connected to the rear mold insert 17.

[0026] Before demoulding is achieved, due to the presence of injection pressure, the first ejector plate assembly 11 is close to the rear template 3, such as Figure 2 As shown, when the injection molding is completed, the first ejector plate assembly 11 has no space to retreat. Therefore, after the injection molding is completed, the injection molding machine on the side of the male mold assembly 2 is controlled to open a certain distance, and then the cylinder assembly 14 is used to push the second ejector plate assembly 12 to move forward a certain distance, which is just or slightly greater than the distance that the subsequent core 13 retreats from the mold cavity. When the second ejector plate assembly 12 moves forward, due to the connection between the rear mold insert 17 and the synchronous retreat gear set 18, it will synchronously drive the first ejector plate assembly 11 to move forward. At the same time, the second ejector plate assembly 11 is connected to the male mold assembly 2 through the connecting rod 16 that passes through the template assembly 10. Under the action of the connecting rod 16, the male mold assembly 2 is pushed to move forward synchronously by the same distance, as shown in FIG. Figure 3 The cylinder assembly 14 is arranged on the rear template 3, and the ejector rod 15 of the cylinder assembly 14 passes through the first ejector plate assembly 11 to the second ejector plate assembly 12 and is fixedly connected thereto.

[0027] The portion of the core 13 inserted into the first ejector plate assembly 11 is provided with thread teeth 25 fixedly connected thereto, and the thread teeth 25 and the synchronous retreat gear set 18 are synchronously driven by the first rack 20 .

[0028] During demoulding, the first rack 20 is used to synchronously drive the synchronous retreat gear set 18 and the threaded teeth 25, wherein the rotation of the synchronous retreat gear set 18 can make it rotate relative to the rear mold insert 17. Since the second ejector plate assembly 12 is fixed under the pressure of the cylinder assembly 14, the first ejector plate assembly 11 can be driven to retreat when the synchronous retreat gear set 18 rotates relative to the rear mold insert 17. Figure 4 As shown, the core 13 is driven to retreat from the mold cavity at the same time. The synchronous rotation of the thread teeth 25 can make the core 13 be unscrewed while retreating, thereby realizing the synchronization of unscrewing and ejecting the core 13, which is convenient for completing the demoulding process of unscrewing the threads. After the threads are unscrewed, the mold is opened, as shown in FIG. Figure 5 shown.

[0029] The first ejector plate assembly 11 is also provided with a first transition tooth 24 meshing with the threaded tooth 25, the first transition tooth 24 is fixed to the lower end of the support rod 22, the upper end of the support rod 22 is fixedly connected with a second transition tooth 23, and a third transition tooth 21 meshing with each other is provided between the second transition tooth 23 and the first rack 20. The threaded tooth 25 is driven to rotate by the third transition tooth 21, the second transition tooth 23, and the first transition tooth 24, so that the structure inside the mold is reasonable, and it is convenient to realize the synchronous rotation of the threaded tooth 25 and the synchronous retreat gear set 18 under the action of the first rack 20.

[0030] In this embodiment, the first ejector plate assembly 11 includes three ejector plates, the threaded teeth 25 are arranged between the first and second ejector plates, and the synchronous reverse gear set 18 is arranged between the second and third ejector plates.

[0031] A fixed plate 26 is fixedly connected to the side of the female mold assembly 1, and a movable plate 27 that can move relative to the fixed plate 26 is connected to the outer side of the fixed plate 26 through a plurality of guide pillars. One end of the first rack 20 passes through the fixed plate 26 to the movable plate 27 and is fixedly connected thereto. A second rack 28 with one end passing through the movable plate 27 is fixedly connected to the fixed plate 26. A driving gear assembly 29 meshing with the second rack 28 is also provided on the movable plate 27, and a servo motor 30 is connected to the driving gear assembly 29.

[0032] The servo motor 30 drives the driving gear assembly 29 to rotate, so that the movable plate 27 can move relative to the fixed plate 26 along the second rack 28. During the movement, the movable plate 27 drives the first rack 20 to move, thereby achieving synchronous movement of the threaded teeth 25 and the synchronous retreat gear set 18.

[0033] In summary, the present invention provides a processing mold with synchronous retreat, unscrewing and ejection of the product on the glue feeding side. The core can be retreated and the product can be unscrewed at the same time through a thread stripping mechanism. The mold structure is more stable, the maintenance time is shorter, the processing efficiency is high, and the cost is saved.

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A processing mold for synchronously retracting, unthreading and ejecting a product on the glue inlet side, comprising a female mold component (1), a male mold component (2) and a rear mold plate (3), wherein the female mold component (1) comprises a mold plate component (10) provided with a plurality of mold cavities, a thread-removing component and a core (13) with one end extending into a corresponding mold cavity; The thread removal assembly comprises a first ejector plate assembly (11) movable between the template assembly (10) and the rear template (3); the other end of the core (13) passes through the first ejector plate assembly (11) and is rotatably connected thereto; and the core (13) moves synchronously with the first ejector plate assembly (11) relative to the template assembly (10) and simultaneously rotates synchronously relative to the first ejector plate assembly (11). Features: The thread stripping assembly further comprises a second ejector plate assembly (12) arranged between the first ejector plate assembly (11) and the template assembly (10) and a cylinder assembly (14) for driving the second ejector plate assembly (12) to move, the second ejector plate assembly (12) being fixedly connected to a rear mold insert (17) having one end extending into the first ejector plate assembly (11), and the first ejector plate assembly (11) being provided with a synchronous retracting gear set (18) threadedly connected to the rear mold insert (17); The second ejector plate assembly (12) is connected to the male mold assembly (2) via a connecting rod (16) passing through the template assembly (10), and the cylinder assembly (14) is arranged on the rear template (3), and the ejector rod (15) of the cylinder assembly (14) passes through the first ejector plate assembly (11) to the second ejector plate assembly (12) and is fixedly connected thereto; The portion of the core (13) inserted into the first ejector plate assembly (11) is provided with threaded teeth (25) fixedly connected thereto, and the threaded teeth (25) and the synchronous retracting gear set (18) are synchronously driven by the first rack (20); The first ejector plate assembly (11) is further provided with a first transition tooth (24) meshing with the threaded tooth (25); the first transition tooth (24) is fixed to the lower end of the support rod (22); the upper end of the support rod (22) is fixedly connected with a second transition tooth (23); and a third transition tooth (21) meshing with each other is provided between the second transition tooth (23) and the first rack (20); The first ejector plate assembly (11) comprises three ejector plates, the threaded teeth (25) are arranged between the first and second ejector plates, and the synchronous reverse gear set (18) is arranged between the second and third ejector plates; Before demoulding is realized, the first ejector plate assembly is close to the rear template. After injection molding is completed, the injection molding machine on the male mold assembly side is controlled to open a set distance, and the cylinder assembly pushes the second ejector plate assembly to move forward, and the moving distance is just or slightly greater than the distance that the subsequent core retreats from the mold cavity. When the second ejector plate assembly moves forward, due to the connection between the rear mold insert and the synchronous retreat gear set, the first ejector plate assembly will be synchronously driven to move forward; at the same time, the second ejector plate assembly is connected to the male mold assembly through a connecting rod passing through the template assembly, and under the action of the connecting rod, the male mold assembly is pushed to move forward synchronously by the same distance; During demoulding, the first rack is utilized to synchronously drive the synchronous retreat gear set and the thread teeth, wherein the rotation of the synchronous retreat gear set causes it to rotate relative to the rear mold insert. Since the second ejector plate assembly is fixed under the pressure of the cylinder assembly, the first ejector plate assembly is driven to retreat when the synchronous retreat gear set rotates relative to the rear mold insert, and the core is driven to retreat from the mold cavity at the same time. The synchronous rotation of the thread teeth causes the core to be unscrewed while retreating, thereby achieving synchronization between the unscrewing and ejecting of the core, facilitating the demoulding process of thread unscrewing, and the mold is opened after the thread is unscrewed.

2. A processing die for synchronously withdrawing, twisting off and ejecting the product on the glue feeding side according to claim 1, characterized in that: A fixed plate (26) is fixedly connected to the side of the female mold assembly (1); a movable plate (27) movable relative to the fixed plate (26) is connected to the outer side of the fixed plate (26) via a plurality of guide pillars; one end of the first rack (20) passes through the fixed plate (26) to the movable plate (27) and is fixedly connected thereto; a second rack (28) having one end passing through the movable plate (27) is fixedly connected to the fixed plate (26); a driving gear assembly (29) meshing with the second rack (28) is also provided on the movable plate (27); a servo motor (30) is connected to the driving gear assembly (29).

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