Sectional type telescopic mold structure applied to internal thread product

Abstract

The utility model discloses a sectional type telescopic mould structure applied to an internal thread product, which comprises an upper mould, a lower mould, a lower mould, a lower mould and a top mould, wherein the upper mould is internally provided with at least one upper mould cavity; the lower die is provided with forming parts, the positions of the forming parts are in one-to-one correspondence with the positions of the upper die cavities, the forming parts are located in the upper die cavities, and gaps are reserved between the forming parts and the upper die cavities; the forming part comprises a shoveling machine and at least two sliding blocks, the shoveling machine is provided with at least two first sliding grooves, the first sliding grooves are arranged at intervals, the sliding blocks are connected into the first sliding grooves in a sliding mode, and threads are arranged on the side faces of the sliding blocks. Compared with the prior art that the thread is disconnected, the problem that the thread is difficult to detach is solved in the mode of internally pulling the sliding block, the structure is simple and compact, and the manufacturing cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a segmented telescopic mold structure applied to internal thread products. Background Art

[0002] Internal thread products usually use an oil cylinder or a motor to drive the gear to rotate and pull out the core, so the volume and manufacturing cost of the mold are very high. However, for some products with relatively low thread requirements, this demolding method is not necessary. How to solve the demolding of products with relatively low thread requirements is an urgent problem to be solved at present. Summary of the Utility Model

[0003] A segmented telescopic mold structure applied to internal thread products provided by the utility model solves the problem of difficult thread demolding in the form of an internal sliding block by disconnecting the thread, and has a simple and compact structure and low manufacturing cost.

[0004] In order to achieve the above object, the utility model provides a segmented telescopic mold structure applied to internal thread products, which includes:

[0005] An upper mold, in which at least one upper mold cavity is arranged;

[0006] A lower mold, on which a forming component is arranged, the position of the forming component corresponds to the position of the upper mold cavity one by one, the forming component is located in the upper mold cavity, and a gap is left between the forming component and the upper mold cavity;

[0007] The forming component includes a lifter and at least two sliders. At least two first chutes are arranged on the lifter, the first chutes are arranged at intervals, the sliders are slidably connected in the first chutes, and threads are arranged on the sides of the sliders.

[0008] As a further description of the above technical solution:

[0009] The lower mold includes a support plate and a push plate. The push plate is arranged above the support plate. The bottom of the lifter is connected to the support plate, the lifter penetrates through the push plate, and the sliders are fixedly connected to the push plate.

[0010] As a further description of the above technical solution:

[0011] Three first chutes are arranged on the lifter, and the three first chutes are arranged at intervals along the circumferential direction of the lifter.

[0012] As a further description of the above technical solution:

[0013] Second chutes are arranged on the groove walls of the first chutes, and the protruding parts on the sliders are slidably connected in the second chutes.

[0014] As a further description of the above technical solution:

[0015] A ejector pin plate is arranged below the pallet, ejector pins are arranged on the ejector pin plate, and through holes for the ejector pins to move are arranged on the lifter.

[0016] As a further description of the above technical solution:

[0017] At least one push rod is arranged on the ejector pin plate, and the push rod passes through the pallet and abuts against the top of the push plate.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of the present utility model are as follows: by disconnecting the thread, the problem of difficult thread demoulding is solved in the form of an internal retractable slider, the structure is simple and compact, saving the manufacturing cost; the volume of the mold is small, reducing the tonnage of the injection molding machine and saving the mass production cost; the mold structure is simple, reducing the production cycle and improving the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required to be used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can also be obtained based on these drawings without creative efforts.

[0020] Figure 1 It is a schematic structural diagram of a segmented telescopic mold structure applied to an internal thread product.

[0021] Figure 2 It is a cross-sectional view of a segmented telescopic mold structure applied to an internal thread product.

[0022] Figure 3 It is a schematic structural diagram of a segmented telescopic mold structure applied to an internal thread product without the upper mold.

[0023] Figure 4 It is a schematic structural diagram of a forming component in a segmented telescopic mold structure applied to an internal thread product.

[0024] Figure 5 It is a schematic structural diagram of the product.

[0025] Legend:

[0026] 1. Upper mold; 2. Upper mold cavity; 3. Lower mold; 31. Pallet; 32. Push plate; 4. Forming component; 41. Lifter; 42. Slide block; 5. First chute; 6. Second chute; 7. Ejector pin plate; 8. Push rod; 9. Product. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. The components of the embodiments of the present utility model usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0028] Therefore, the detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model claimed, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0030] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "inner", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. It 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 a limitation of the present utility model.

[0031] In the description of the present utility model, it should also be noted that unless otherwise clearly defined and limited, the terms "set", "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 directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0032] Please refer to Figures 1-5 , the present utility model provides a segmented telescopic die structure applied to internal thread products, which includes:

[0033] An upper die 1, in which at least one upper die cavity 2 is provided;

[0034] The lower die 3 is provided with a forming component 4 thereon. The position of the forming component 4 corresponds to that of the upper die cavity 2 one by one. The forming component 4 is located within the upper die cavity 2, and there is a gap between the forming component 4 and the upper die cavity 2.

[0035] The forming component 4 includes a lifter 41 and at least two sliders 42. At least two first chutes 5 are provided on the lifter 41. The first chutes 5 are arranged at intervals. The sliders 42 are slidably connected within the first chutes 5, and threads are provided on the sides of the sliders 42.

[0036] The lower die 3 includes a base plate 31 and a push plate 32. The push plate 32 is arranged above the base plate 31. The bottom of the lifter 41 is connected to the base plate 31, and the lifter 41 penetrates through the push plate 32. The sliders 42 are fixedly connected to the push plate 32. The push plate can move up and down above the base plate. Thus, when the mold is opened, a relative displacement occurs between the push plate and the base plate. The sliders move upward, and there is no obstruction from the lifter above the upper parts of the sliders. Under the action of the product, the sliders move towards the center of the lifter, thereby achieving the purpose of facilitating demolding.

[0037] Three first chutes 5 are provided on the lifter 41. The three first chutes 5 are arranged at intervals along the circumferential direction of the lifter 41. The first chutes are opened along the vertical direction of the lifter, and the first chutes are inclined towards the center of the lifter from bottom to top. The intervals between the first chutes can thus break the threads when the product is involved.

[0038] Second chutes 6 are provided on the groove walls of the first chutes 5. The protruding parts on the sliders 42 are slidably connected within the second chutes 6. The protruding parts are arranged on the side close to the center of the lifter, and the protruding parts are trapezoidal, which is convenient for the sliders to move towards the center of the lifter.

[0039] A thimble plate 7 is provided below the base plate 31. Thimbles are provided on the thimble plate 7, and through holes for the movement of the thimbles are provided on the lifter 41. This facilitates ejecting the product.

[0040] At least one push rod 8 is provided on the thimble plate 7. The push rod 8 passes through the base plate 31 and abuts against the top of the push plate 32. The thimble plate moves under the action of the ejector rod, thereby driving the movement of the push rod, and the push rod drives the movement of the push plate.

[0041] Working principle: When the upper mold 1 and the lower mold 3 are closed, a certain amount of plastic fluid is injected into the upper mold cavity 2 through the feeding hole, and the product is formed in the gap between the molding part 4 and the upper mold cavity 2; after the mold is opened, the ejector rod touches the ejector pin plate 7, pushing the push plate 32 to move forward. A relative displacement occurs between the push plate 32 and the support plate 31, and the slider 42 moves upward. There is no blockage of the lifter 41 above the slider 42. Under the action of the product, the slider 42 moves towards the center of the lifter 41, thus achieving the purpose of facilitating demolding. Therefore, the utility model solves the problem of difficult thread demolding in the form of an internal extraction slider by disconnecting the thread, with a simple and compact structure, saving manufacturing costs; the small mold volume reduces the tonnage of the injection molding machine and saves mass production costs; the mold structure is simple, reducing the production cycle and improving production efficiency.

[0042] The above is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present utility model.

Claims

1. A segmented telescopic mold structure applied to internal thread products, characterized in that: include: An upper mold, wherein at least one upper mold cavity is arranged in the upper mold; A lower mold, wherein a molding component is disposed on the lower mold, the position of the molding component corresponds to the position of the upper mold cavity one by one, the molding component is located in the upper mold cavity, and a gap is left between the molding component and the upper mold cavity; The forming component comprises a shovel and at least two slide blocks, wherein the shovel is provided with at least two first slide grooves, the first slide grooves are arranged at intervals, the slide blocks are slidably connected in the first slide grooves, and the side surfaces of the slide blocks are provided with threads.

2. A segmented telescopic mold structure for internal thread products according to claim 1, characterized in that: The lower mold includes a supporting plate and a push plate, the push plate is arranged above the supporting plate, the bottom of the shovel is connected to the supporting plate, the shovel passes through the push plate, and the slide block is fixedly connected to the push plate.

3. The segmented telescopic mold structure for internal thread products according to claim 1, characterized in that: The shovel machine is provided with three first chutes, and the three first chutes are arranged at intervals along the circumference of the shovel machine.

4. The segmented telescopic mold structure for internal thread products according to claim 2, characterized in that: A second sliding groove is arranged on the groove wall of the first sliding groove, and the protrusion on the sliding block is slidably connected in the second sliding groove.

5. The segmented telescopic mold structure for internal thread products according to claim 2, characterized in that: An ejector plate is arranged below the supporting plate, an ejector is arranged on the ejector plate, and a through hole for the ejector to move is arranged on the shovel.

6. The segmented telescopic mold structure for internal thread products according to claim 5, characterized in that: At least one push rod is arranged on the ejector plate, and the push rod passes through the supporting plate and abuts against the top of the push plate.

Images