Internal thread product demolding mechanism and mold

Abstract

The utility model provides an internal thread product demolding mechanism and a mold. The internal thread product demolding mechanism comprises a thread mold core, an ejection assembly, a rotating power assembly and an ejection power assembly, the threaded core is of a circular tube structure, and an external thread matched with an internal thread of a product is arranged at the end, close to the product, of the threaded core. The threaded core is movably arranged on the outer side wall of the ejection assembly in a sleeving manner; the rotary power assembly can control the threaded core to rotate along the outer side wall of the ejection assembly and move up and down; the ejection power assembly can control the ejection assembly to move up and down, and the ejection assembly can eject the product upwards. Therefore, the product can be automatically separated, the production efficiency is higher, and the product is safer; furthermore, the ejection assembly comprises an ejector sleeve and an ejector sleeve needle, the ejection power assembly is a mold push block located between the bottom of the ejector sleeve and the bottom of the ejector sleeve needle, and the ejection mechanism is simple in structure, stable in operation and high in reliability.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a demoulding mechanism and a mold for an internal thread product. Background Art

[0002] In modern industrial production, injection molded products are often produced by injection molding machines and injection molds. Generally speaking, for products without special structures, it is only necessary to separate the upper mold and the lower mold directly after the injection molding is completed to successfully complete the demoulding and obtain the product. However, with the rapid development of modern industry, the structure of injection molded products is becoming more and more complex. For example, for Figure 1 、 Figure 2 The molding and demolding of the multi-inner-button product with an internal thread structure shown has always been a difficulty in the mold industry.

[0003] Generally speaking, internal thread products need to be demolded by rotating the mold. In the existing technology, manual demolding is generally adopted. That is, after the injection molding machine completes the injection molding of the internal thread product, the mold is opened, the internal thread product is ejected, and then a person enters the injection molding machine and manually rotates the mold to eject it. This method is not only inefficient but also highly dangerous. It does not conform to the modern production concept of lean production and is not conducive to the development of the enterprise. Utility Model Content

[0004] The utility model provides a demoulding mechanism for internal thread products, which can automatically and smoothly demould products with internal thread structures without manual demoulding, thereby improving production efficiency and being safer. The specific technical solution is as follows:

[0005] A demoulding mechanism for an internally threaded product is used for demoulding products with an internally threaded structure, comprising a threaded core, an ejection assembly, a rotary power assembly, and an ejection power assembly; the threaded core is a circular tubular structure, and an end of the threaded core close to the product is provided with an external thread adapted to the internal thread of the product; the threaded core is movably sleeved on the outer side wall of the ejection assembly; the rotary power assembly can control the threaded core to rotate and move up and down along the outer side wall of the ejection assembly; the ejection power assembly can control the ejection assembly to move up and down, and the ejection assembly can eject the product upward.

[0006] Furthermore, the ejection assembly includes a sleeve and a sleeve needle; the threaded core is movably sleeved on the outer side wall of the sleeve, and the sleeve is movably sleeved on the outer side wall of the sleeve needle; the sleeve needle is fixed; the sleeve can move up and down along the outer side wall of the sleeve needle under the control of the ejection power assembly.

[0007] Furthermore, in the mold closing state, the top of the sleeve needle is higher than the top of the sleeve.

[0008] Furthermore, the ejection power assembly is a mold push block located between the bottom of the sleeve and the bottom of the sleeve needle.

[0009] Furthermore, the rotating power assembly includes a toothed ring, a gear shaft, a gear, a rack and a power component; the toothed ring is fixedly sleeved on the outer side wall of the middle part of the threaded core; the gear shaft includes a circular shaft portion and a gear portion; the gear is fixedly sleeved on the outer side wall of the circular shaft portion, and the gear is meshed with the toothed ring; the rack is meshed with the gear portion, and the rack can move along the length direction of the rack under the control of the power component.

[0010] Furthermore, the power component includes a connecting buckle, a fixing plate and a cylinder; the rack is connected to the cylinder through the connecting buckle; the fixing plate is used to longitudinally limit the connecting buckle so that the connecting buckle moves laterally under the control of the cylinder.

[0011] The utility model provides an internal thread product demoulding mechanism, in which the thread core and the ejection assembly jointly form the internal structure of the product, the thread core completes the internal thread demoulding under the control of the rotating power assembly, and the ejection assembly ejects the product upward from the mold under the control of the ejection power assembly, completing the automatic ejection of the product, which can effectively improve production efficiency, reduce mold costs, and enhance the safety factor of the production process.

[0012] Furthermore, the ejection assembly includes the sleeve and the sleeve needle, and the ejection power assembly is a mold push block located between the bottom of the sleeve and the bottom of the sleeve needle. The internal thread demoulding and ejection of the product are achieved through a simple structure, with stable operation and high reliability.

[0013] Furthermore, the top of the sleeve needle is higher than the top of the sleeve, so that when the product is injection-molded, a downward annular boss structure can be formed inside.

[0014] The utility model also provides a mold for internal thread products, which can automatically complete the injection molding and smooth demoulding of products with internal thread structures, without the need for manual demoulding, thereby improving production efficiency and being safer. The specific technical solution is as follows:

[0015] A mold for an internal thread product comprises a fixed mold and a movable mold, wherein a front mold insert is provided at the bottom of the fixed mold; a rear mold insert is provided at the top of the movable mold; an internal thread product demoulding mechanism described in any one of the above items is provided below the rear mold insert; the front mold insert, the rear mold insert and the internal thread product demoulding mechanism together constitute the molding space of the product.

[0016] Furthermore, a first sleeve is fixedly provided in the movable mold; the first sleeve abuts against the bottom of the rear mold insert, and the first sleeve is movably sleeved on the outer side wall of the threaded core.

[0017] Furthermore, a second sleeve is provided in the movable mold; the second sleeve is located below the connection between the threaded core and the rotating power assembly, and the second sleeve is movably sleeved on the outer side wall of the threaded core.

[0018] Furthermore, a reset spring is provided in the movable mold to reset the mold.

[0019] The internal thread product mold provided by the utility model can not only complete the molding of the product during injection molding, but also complete the automatic demoulding and automatic ejection of the internal thread structure of the product through the front mold insert at the bottom of the fixed mold, the rear mold insert at the top of the movable mold and the internal thread product demoulding mechanism, without the need for manual demoulding. It has a simple structure, stable operation and high reliability, which can effectively improve production efficiency and enhance the safety factor of the production process.

[0020] Furthermore, a first sleeve and a second sleeve are fixedly provided in the movable mold. The first sleeve and the second sleeve are movably sleeved on the outer side wall of the threaded core, which can play a guiding role and can be easily replaced with new parts after wear to prevent mold strain. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of a product with an internal thread structure.

[0022] Figure 2 This is a cross-sectional view of the internal structure of a product with an internal thread structure.

[0023] Figure 3 Schematic diagram of the demoulding mechanism for internal thread products Figure 1 .

[0024] Figure 4 Schematic diagram of the demoulding mechanism for internal thread products Figure 2 .

[0025] Figure 5 Schematic diagram of the demoulding mechanism for internal thread products Figure 3 .

[0026] Figure 6 Schematic diagram of the ejector assembly and threaded core structure Figure 1 .

[0027] Figure 7 Schematic diagram of the ejector assembly and threaded core structure Figure 2 .

[0028] Figure 8Schematic diagram of the ejector assembly and threaded core structure Figure 3 .

[0029] Figure 9 Schematic diagram of the sleeve and sleeve needle structure Figure 1 .

[0030] Figure 10 Schematic diagram of the sleeve and sleeve needle structure Figure 2 .

[0031] Figure 11 Schematic diagram of the rotating power component structure Figure 1 .

[0032] Figure 12 Schematic diagram of the rotating power component structure Figure 2 .

[0033] Figure 13 This is a schematic diagram of the mold structure of internal thread products.

[0034] Figure 14 for Figure 13 Cross-sectional view of section AA.

[0035] Figure 15 for Figure 13 Middle BB section view.

[0036] Figure 16 Schematic diagram of the front mold insert structure.

[0037] Figure 17 Schematic diagram of the mold opening process (only key components).

[0038] The figures are marked as follows: 1 is the product, 2 is the threaded core, 3 is the ejection assembly, 31 is the sleeve, 32 is the sleeve needle, 4 is the rotating power assembly, 41 is the toothed ring, 42 is the gear shaft, 421 is the circular shaft part, 422 is the gear part, 423 is the bearing, 43 is the gear, 44 is the rack, 45 is the power component, 451 is the connecting buckle, 452 is the fixed plate, 453 is the oil cylinder, 5 is the ejection power assembly, 51 is the mold push block, 6 is the fixed mold, 61 is the front mold insert, 62 is the mold blank, 63 is the spacer, 64 is the sprue hook, 65 is the first plug screw, 66 is the second plug screw, 7 is the movable mold, 71 is the rear mold insert, 72 is the first sleeve, 73 is the second sleeve, and 74 is the return spring. DETAILED DESCRIPTION

[0039] The following further describes the specific embodiments of the present invention in conjunction with the accompanying drawings. For ease of description, the terms "front," "back," "front," "backward," "left," "right," "top," "bottom," "up," "down," "inside," "outside," and "inner" used in the present invention to indicate positions or locations are based on the positions or locations shown in the accompanying drawings. These terms are intended solely to facilitate description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention or the actual orientation of the product or device during production, use, or sale. Furthermore, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features referred to. Furthermore, in the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "installed," "disposed," "connected," "fixed," and "composed" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integration; they can refer to direct connections or indirect connections through an intermediary. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0040] The utility model provides a demoulding mechanism for an internal thread product, which is used for demoulding a product 1 having an internal thread structure. The structure of the product 1 having an internal thread structure is as follows: Figure 1 、 Figure 2 As shown, the product 1 is hollow inside, with a threaded structure on the inner wall, the bottom is open, and the top can be fully closed or as shown in FIG. Figure 1 、 Figure 2 It is shown as partially closed, but it can also be completely opened without any closure. In this embodiment, the top of the product 1 is partially closed.

[0041] like Figure 3 、 Figure 4 、 Figure 5 As shown, the internal thread product demoulding mechanism includes a threaded core 2, an ejection assembly 3, a rotating power assembly 4 and an ejection power assembly 5; the threaded core 2 is a circular tubular structure, and the end of the threaded core 2 close to the product 1 is provided with an external thread adapted to the internal thread of the product 1, for forming the internal thread structure of the product 1; the threaded core 2 is movably sleeved on the outer side wall of the ejection assembly 3, and can rotate and move up and down on the outer side wall of the ejection assembly 3; the rotating power assembly 4 can control the threaded core 2 to rotate and move up and down along the outer side wall of the ejection assembly 3; the ejection power assembly 5 can control the ejection assembly 3 to move up and down, and the ejection assembly 3 can eject the product 1 upward.

[0042] like Figure 3As shown, in the mold closing state, the threaded core 2 is located inside the product 1, and the ejector assembly 3 is located in the round tube of the threaded core 2. The threaded core 2 and the ejector assembly 3 jointly form the internal structure of the product 1; when the mold is opened, as shown in FIG. Figure 4 As shown, under the control of the rotating power assembly 4, the thread core 2 rotates along the outer wall of the ejection assembly 3 and moves downward, and the thread core 2 retreats and escapes from the internal thread structure of the product 1, completing the internal thread demoulding of the product 1; then, as shown Figure 5 As shown, under the control of the ejection power assembly 5, the ejection assembly 3 moves upward to eject the product 1 upward from the mold. In this embodiment, since the top of the product 1 is partially closed, the ejection assembly 3 can move upward to contact the closed part of the top of the product 1 and directly eject the product 1 upward. The same applies when the top of the product 1 is in a fully closed state. If the top of the product 1 is completely open without any closure, at least one controllable lifting boss structure can be radially provided on the top of the ejection assembly 3. In the mold closing state, the boss structure is in a descending state and does not protrude from the outer wall surface of the ejection assembly 3. When the threaded core 2 retreats and escapes from the inner wall of the product 1, After the thread structure is formed, the boss structure changes to a raised state, and the boss structure protrudes from the outer wall surface of the ejection component 3. When the ejection component 3 moves upward, the radially raised boss structure contacts the bottom of the side wall of the product 1, thereby ejecting the product 1 upward. Of course, for the product 1 with a fully closed or partially closed top, the above-mentioned solution of radially arranging at least one controllable lifting boss structure on the top of the ejection component 3 can also be used. In addition, the ejection component 3 can also adopt other structures as long as it can eject the product 1 upward.

[0043] The internal thread product demoulding mechanism adopts the above structure, the thread core 2 and the ejection component 5 jointly form the internal structure of the product 1, the thread core 2 completes the internal thread demoulding under the control of the rotating power component 4, and the ejection component 3 ejects the product 1 upward from the mold under the control of the ejection power component 5, completing the automatic ejection of the product 1. It has a simple structure, stable operation, and high reliability. It can not only effectively improve production efficiency and reduce mold costs, but also improve the safety factor of the production process.

[0044] In some embodiments, as Figure 6 、 Figure 7 、 Figure 8As shown, the ejection assembly 3 includes a sleeve 31 and a sleeve needle 32; the threaded core 2 is movably mounted on the outer wall of the sleeve 31 and can rotate and move up and down on the outer wall of the sleeve 31; the sleeve 31 is movably mounted on the outer wall of the sleeve needle 32; the sleeve needle 32 is fixed; the sleeve 31 can move up and down along the outer wall of the sleeve needle 32 under the control of the ejection power assembly 5.

[0045] like Figure 6 The structure diagram of the threaded core 2, sleeve 31 and sleeve needle 32 in the mold closing state is shown; when the mold is opened, as shown in FIG. Figure 7 As shown, under the control of the rotating power assembly 4, the thread core 2 rotates along the outer wall of the sleeve 31 and moves downward, and the thread core 2 retreats out of the internal thread structure of the product 1, completing the internal thread demoulding of the product 1; then, as shown Figure 8 As shown, under the control of the ejection power assembly 5, the ejector 31 moves upward to eject the product 1 upward from the mold; during the whole process, the ejector needle 32 remains fixed.

[0046] The internal thread product demoulding mechanism using the above structure realizes the demoulding and ejection of the internal thread of the product through the combination of the thread core 2, the sleeve 31 and the sleeve needle 32. The whole process is automated and does not require human participation. It has a simple structure, stable operation and high reliability, which can effectively improve production efficiency and enhance the safety factor of the production process.

[0047] In some embodiments, as Figure 9 As shown, in the mold closing state, the top of the sleeve needle 32 is higher than the top of the sleeve 31.

[0048] The demoulding mechanism of the internal thread product adopting the above structure is as follows: Figure 9 The figure shows the structure of the sleeve 31 and the sleeve needle 32 in the mold closing state. Since the top of the sleeve needle 32 is higher than the top of the sleeve 31, the product 1 can be formed inside when it is injection molded. Figure 2 The downward annular boss structure shown; specifically, the part of the sleeve needle 32 that is higher than the sleeve 31 forms the interior of the downward annular boss structure of the product 1, and the outer wall of the part of the sleeve needle 32 that is higher than the sleeve 31, the top of the sleeve 31, and the inner wall of the threaded core 2 together form the molding space of the downward annular boss structure of the product 1; as shown Figure 10 As shown, when the mold is opened, after the internal thread of the product 1 is removed, the ejector 31 moves upward under the control of the ejection power assembly 5 to eject the product 1 upward from the mold; during the whole process, the ejector needle 32 remains fixed.

[0049] In some embodiments, the ejection power assembly 5 is a mold pusher block 51 , and the mold pusher block 51 is located between the bottom of the sleeve 31 and the bottom of the sleeve needle 32 .

[0050] The internal thread product demoulding mechanism with the above structure can push the sleeve 31 upward through the mold push block 51, thereby ejecting the product 1 upward. It has a simple structure, stable operation and high reliability.

[0051] In some embodiments, as Figure 11 、 Figure 12 As shown, the rotating power assembly 4 includes a toothed ring 41, a gear shaft 42, a gear 43, a rack 44 and a power component 45; the toothed ring 41 is fixedly sleeved on the outer wall of the middle part (the middle position can be, not limited to the middle) of the threaded core 2. In this embodiment, the toothed ring 41 and the threaded core 2 are integrally formed. Of course, the toothed ring 41 can also be fixedly sleeved on the middle part of the threaded core 2 in a detachable manner; the gear shaft 42 includes a circular shaft portion 421 and a gear portion 422; the gear 4 The fixed sleeve is mounted on the outer wall of the circular shaft portion 421, and the gear 43 is meshed with the toothed circular ring 41. In this embodiment, a pin is provided between the gear 43 and the gear shaft 42, so that the two are relatively stationary. At the same time, the gear 43 and the gear shaft 42 are fixed in the mold by a bearing 423, so that the gear shaft 42 and the gear 43 can only rotate along the center line of the gear shaft 42. The rack 44 is meshed with the gear portion 422 and can move along its length under the control of the power component 45.

[0052] The internal thread product demoulding mechanism adopts the above structure. Through the mutual cooperation of the toothed ring 41, the gear shaft 42, the gear 43, the rack 44 and the power component 45, the unidirectional force of the rack 44 can be converted into a rotational force, thereby causing the thread core 2 to rotate and move downward along the outer wall of the sleeve 31, and the thread core 2 retreats to escape from the internal thread structure of the product 1, completing the internal thread demoulding of the product 1. The structure is simple, the operation is stable, and the reliability is high.

[0053] In some embodiments, the power component 45 includes a connecting buckle 451, a fixing plate 452 and a cylinder 453; the connecting buckle 451 is located between the rack 44 and the cylinder 453, and the rack 44 is connected to the cylinder 453 through the connecting buckle 451; the fixing plate 452 is used to longitudinally limit the connecting buckle 451, so that the connecting buckle 451 moves laterally under the control of the cylinder 453.

[0054] The internal thread product demoulding mechanism using the above structure can realize the lateral push-pull movement of the rack 44 through the mutual cooperation of the connecting buckle 451, the fixed plate 452 and the oil cylinder 453, and then through the mutual cooperation between the toothed ring 41, the gear shaft 42, the gear 43 and the rack 44, the thread core 2 rotates along the outer wall of the sleeve 31 and moves downward, and the thread core 2 retreats out of the internal thread structure of the product 1, completing the internal thread demoulding of the product 1. It has a simple structure, stable operation and high reliability.

[0055] The present invention also provides a mold for an internal thread product, such as Figure 13 、 Figure 14 、 Figure 15 As shown, the internal thread product mold includes a fixed mold 6 and a movable mold 7; a front mold insert 61 is provided at the bottom of the fixed mold 6, as shown in FIG. Figure 16 As shown, the front mold insert 61 is used to form the top structure of the product 1; in this embodiment, the front mold insert 61 is fixed to the fixed mold by the mold blank 62 and the gasket 63; a rear mold insert 71 is provided on the top of the movable mold 7, and the rear mold insert 71 is used to form the outer structure of the product 1; in this embodiment, the rear mold insert 71 is fixed to the movable mold 7 by fastening screws; the internal thread product demoulding mechanism described in any one of the above items is provided below the rear mold insert 71, and the internal thread product demoulding mechanism is used to form the internal structure of the product 1; therefore, the front mold insert 61, the rear mold insert 71 and the internal thread product demoulding mechanism together constitute the molding space of the product 1. In this embodiment, the oil cylinder 453 is arranged outside the movable mold 7, and a through hole is provided on the side of the movable mold 7, through which the connecting buckle 451 can enter, and then the connecting buckle 451 is connected to the rack 44 located inside the movable mold 7, driving the rack 44 to perform lateral pushing and pulling movements; the sleeve needle 32 is fixed on the movable mold 7 and is fixed relative to the mold.

[0056] The internal thread product mold using the above structure, through the front mold insert 61 at the bottom of the fixed mold 6, the rear mold insert 71 at the top of the movable mold 7 and the internal thread product demoulding mechanism, can not only complete the molding of the product 1 during injection molding, but also complete the automatic demoulding and automatic ejection of the internal thread structure of the product 1 without manual demoulding. It has a simple structure, stable operation, and high reliability, which can effectively improve production efficiency and enhance the safety factor of the production process.

[0057] In some embodiments, a first sleeve 72 is further provided in the movable mold 7, and the first sleeve 72 is fixed in the movable mold 7 by fastening screws; specifically, the first sleeve 72 abuts the bottom of the rear mold insert 71, and the first sleeve 72 is movably sleeved on the outer side wall of the threaded core 2, and the threaded core 2 can move up and down along the inner side wall of the first sleeve 72.

[0058] With the internal thread product mold of the above structure, the first sleeve 72 can play a guiding role in the process of the thread core 2 retreating and demoulding, and can easily replace new parts after wear, preventing mold wear.

[0059] In some embodiments, a second sleeve 73 is further provided in the movable mold 7, and the second sleeve 73 is fixed in the movable mold 7; the second sleeve 73 is located below the connection between the threaded core 2 and the rotating power component 4, and the second sleeve 73 is movably sleeved on the outer wall of the threaded core 2, and the threaded core 2 can move up and down along the inner wall of the first sleeve 72.

[0060] With the internal thread product mold of the above structure, the first sleeve 72 can play a guiding role in the process of the thread core 2 retreating and demoulding, and can easily replace new parts after wear, preventing mold wear.

[0061] In some embodiments, a reset spring 74 is further provided in the movable mold 7 to reset the mold. The mold can be reset after the mold opening is completed and the product 1 is taken out.

[0062] In this embodiment, the internal thread product mold adopts a point gate method, which can increase the melt shear rate, improve the filling quality, ensure that the thread mold is full, and reduce the cost of manual material removal in the later stage. Of course, in actual application, other gate methods can also be used, which is not limited here. Figure 14 、 Figure 17 Taking the mold structure in this embodiment as an example, the specific mold opening process is as follows:

[0063] (1) When the mold is opened, under the action of the nylon screw plug, the internal thread product mold is first opened from the BB parting surface, and the gate material is pulled off under the pulling force of the gate hook 64. The gate material is located on the side of the fixed mold 6, and the product 1 is located on the side of the movable mold 7;

[0064] (2) After the movable mold 7 retreats to the effective length of the first plug screw 65, the movable mold 7 drives the first plug screw 65 to force the mold AA parting surface to separate, and at this time drives the second plug screw 66 to move, and the nozzle material is separated from the nozzle hook 64, and the nozzle material falls off by itself;

[0065] (3) Under the action of the first driving screw 65 and the second driving screw 66, the fixed mold 6 reaches the maximum movement distance and no longer opens. At this time, the internal thread product mold opens from the CC parting surface and stops after moving a certain distance to reach the ejection clearance;

[0066] (4) After the mold CC parting surface is opened, the oil cylinder 453 performs the ejection action, pushing the rack 44 to move through the connecting buckle 451, pushing the gear 43 to rotate around the gear shaft 42, and the gear 43 drives the thread core 2 to rotate in the opposite direction at the same time, so that the thread core 2 retreats and escapes from the internal thread structure of the product 1;

[0067] (5) After the internal thread structure of the product 1 is disengaged, the movable mold 7 continues to retreat until the injection molding machine pushes the mold push block 51, thereby pushing the sleeve 31 to move upward and ejecting the product 1. During this period, the sleeve needle 32 is stationary relative to the movable mold 7 and does not participate in the ejection operation.

[0068] The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Any equivalent changes based on the shape, structure and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. An internal thread product demoulding mechanism, used for demoulding a product (1) having an internal thread structure, characterized in that: The invention comprises a threaded core (2), an ejection assembly (3), a rotating power assembly (4) and an ejection power assembly (5); the threaded core (2) is a circular tubular structure, and an end of the threaded core (2) close to the product (1) is provided with an external thread adapted to the internal thread of the product (1); the threaded core (2) is movably sleeved on the outer wall of the ejection assembly (3); the rotating power assembly (4) can control the threaded core (2) to rotate along the outer wall of the ejection assembly (3) and to move up and down; the ejection power assembly (5) can control the ejection assembly (3) to move up and down, and the ejection assembly (3) can eject the product (1) upward.

2. The internal thread product demoulding mechanism according to claim 1, characterized in that: The ejection assembly (3) includes a sleeve (31) and a sleeve needle (32); the threaded core (2) is movably sleeved on the outer wall of the sleeve (31), and the sleeve (31) is movably sleeved on the outer wall of the sleeve needle (32); the sleeve needle (32) is fixed; the sleeve (31) can move up and down along the outer wall of the sleeve needle (32) under the control of the ejection power assembly (5).

3. The internal thread product demoulding mechanism according to claim 2, characterized in that: In the mold closing state, the top of the sleeve needle (32) is higher than the top of the sleeve (31).

4. The internal thread product demoulding mechanism according to claim 2, characterized in that: The ejection power assembly (5) is a mold push block (51) located between the bottom of the sleeve (31) and the bottom of the sleeve needle (32).

5. The internal thread product demoulding mechanism according to claim 1, characterized in that: The rotating power assembly (4) comprises a toothed circular ring (41), a gear shaft (42), a gear (43), a rack (44) and a power component (45); the toothed circular ring (41) is fixedly sleeved on the outer side wall of the middle part of the threaded core (2); the gear shaft (42) comprises a circular shaft portion (421) and a gear portion (422); the gear (43) is fixedly sleeved on the outer side wall of the circular shaft portion (421), and the gear (43) is meshed with the toothed circular ring (41); the rack (44) is meshed with the gear portion (422), and the rack (44) can move along the length direction of the rack (44) under the control of the power component (45).

6. The internal thread product demoulding mechanism according to claim 5, characterized in that: The power component (45) includes a connecting buckle (451), a fixing plate (452) and an oil cylinder (453); the rack (44) is connected to the oil cylinder (453) through the connecting buckle (451); the fixing plate (452) is used to longitudinally limit the connecting buckle (451), so that the connecting buckle (451) moves laterally under the control of the oil cylinder (453).

7. A mold for an internal thread product, comprising a fixed mold (6) and a movable mold (7), characterized in that: A front mold insert (61) is provided at the bottom of the fixed mold (6); a rear mold insert (71) is provided at the top of the movable mold (7); an internal thread product demoulding mechanism according to any one of claims 1 to 6 is provided below the rear mold insert (71); the front mold insert (61), the rear mold insert (71) and the internal thread product demoulding mechanism together constitute the molding space of the product (1).

8. The internal thread product mold according to claim 7, characterized in that: A first sleeve (72) is also fixedly provided in the movable mold (7); the first sleeve (72) abuts against the bottom of the rear mold insert (71), and the first sleeve (72) is movably sleeved on the outer side wall of the threaded core (2).

9. The internal thread product mold according to claim 7, characterized in that: A second sleeve (73) is also provided in the movable mold (7); the second sleeve (73) is located below the connection between the threaded core (2) and the rotating power assembly (4), and the second sleeve (73) is movably sleeved on the outer wall of the threaded core (2).

10. The internal thread product mold according to claim 7, characterized in that: A reset spring (74) is also provided in the movable mold (7) for resetting the mold.

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