Telescopic core mechanism

Abstract

The application provides a telescopic core mechanism for separating from a barb inside a product, comprising a driving member, two first retracting members, two second retracting members, a sliding assembly, a bearing assembly and a moving assembly; one end of the first retracting member penetrates through the bearing assembly and is slidably arranged in the moving assembly, the other end of the first retracting member can extend out of the bearing assembly, and the outer periphery of the first retracting member is provided with a first protruding part; one end of the second retracting member is slidably arranged in the bearing assembly, the other end of the second retracting member can extend out of the bearing assembly, and the outer periphery of the second retracting member is provided with a second protruding part; the sliding assembly comprises a sliding member, the sliding member is slidably connected between the two first retracting members, and the opposite two sides of the sliding member abut against the two second retracting members; and the moving assembly comprises two moving members, one end of each moving member extends into the bearing assembly and abuts against the two sides of the two second retracting members. The telescopic core mechanism can separate the first retracting member and the second retracting member from the product and is suitable for products with small sizes.

Description

Technical Field

[0001] This application relates to the field of mold technology, specifically to a telescopic core mechanism. Background Technology

[0002] Molds are intermediate products in the production process, used for the production of final products. Mold processing is one of the important methods of material shaping. Compared with machining, it has the advantages of fewer steps, higher material utilization, lower energy consumption, easier production, and higher efficiency. It is widely used in various industries such as automotive, energy, medical, machinery, electronics, and aerospace. Due to the important role of molds in manufacturing, mold design and manufacturing have become an important field in the manufacturing industry.

[0003] For some round injection-molded products with internal annular undercuts, the interference of the internal annular undercut structure after injection molding prevents the injection mold from being demolded in the conventional way. Currently, the demolding methods used in the market are six-lobed telescopic core mechanisms and eight-lobed telescopic core mechanisms. However, these two telescopic core mechanisms have specific requirements on the diameter of the product and are only suitable for products with a diameter greater than 20mm. They cannot be used for products with a diameter less than 20mm. Therefore, there is an urgent need for a telescopic core mechanism that can demold products with a diameter less than 20mm. Summary of the Invention

[0004] In view of the above, it is necessary to provide a telescopic core mechanism to solve the current technical problem that barbs cannot be demolded for small-sized products.

[0005] This application provides a telescopic core mechanism for detaching from a barb inside a product. The mechanism includes a drive component, two first retractable parts, two second retractable parts, a sliding component, a supporting component, and a movable component slidably connected between the sliding component and the supporting component.

[0006] One end of each of the two first retractable members passes through the abutment component and is slidably disposed within the moving component in a first direction; the other end of each of the two first retractable members can extend out of the abutment component; and each of the first retractable members has a first protrusion on its outer periphery away from the moving component.

[0007] One end of each of the two second retractable members is slidably disposed within the abutment assembly along a second direction perpendicular to the first direction, and the other end of each of the two second retractable members can extend out of the abutment assembly. Each of the two second retractable members has a second protrusion on its outer periphery away from the abutment assembly. The shape structure formed by the combination of the two first protrusions and the two second protrusions is adapted to the shape structure of the barb on the product.

[0008] The sliding component is connected to the driving component and slides along a third direction perpendicular to the first direction and the second direction under the drive of the driving component. The sliding component includes a sliding member that passes through the moving component and the abutting component respectively. The sliding member is slidably connected between the two first retractable members and can bring the two first retractable members closer to each other along the first direction when sliding. The other opposite sides of the sliding member abut against the two second retractable members respectively.

[0009] The moving component includes two moving parts, one end of each of the two moving parts extends into the abutting component and abuts against both sides of the two second retractable parts respectively. When moving, the two moving parts abut against the two second retractable parts respectively and move closer to each other along the second direction.

[0010] The actuation stroke of the driving member includes a first driving stage, a second driving stage, and a third driving stage. In the first driving stage, the driving member can drive the sliding component to move away from the moving component along the third direction and cause the sliding component to slide, so that the two first retractable components move closer to each other along the first direction. In the second driving stage, the driving member can drive the sliding component to move the moving component away from the abutting component along the third direction, so that the two first retractable components move along the third direction and the two moving components respectively abut against the two second retractable components moving closer to each other along the second direction. In the third driving stage, the driving member can drive the sliding component and the moving component to move away from the product along the third direction, so that the two first retractable components and the two second retractable components move along the third direction, thereby causing the two first retractable components and the two second retractable components to detach from the product.

[0011] The aforementioned telescopic core mechanism first drives the sliding assembly to move away from the moving assembly along a third direction via a driving component, causing the sliding component to slide, so that the two first retractable parts move closer to each other along the first direction, causing the first protrusions of the two first telescopic parts to disengage from the barbs of the product; then, the driving component continues to drive the sliding assembly to move away from the abutting component along a third direction, so that the two first retractable parts move along a third direction and the two moving components respectively abut against the two second retractable parts moving closer to each other along a second direction, causing the second protrusions of the two second retractable parts to disengage from the barbs of the product; then, the driving component further drives the sliding assembly and the moving assembly to move away from the product along a third direction, so that the two first retractable parts and the two second retractable parts move along a third direction, thereby causing the two first retractable parts and the two second retractable parts to disengage from the product, completing the demolding. This mechanism is suitable for smaller products and has a good demolding effect.

[0012] In some embodiments, the first retractable member includes a body, a first limiting groove, and a first limiting block;

[0013] The body includes a first surface close to the slider and a second surface away from the slider, wherein the first surface is an inclined surface;

[0014] The first limiting groove is formed on the first surface and extends along the third direction;

[0015] The first limiting block is disposed on the second surface and is engaged within the moving component;

[0016] The sliding member includes a first inclined surface that abuts against the first surface, and the first inclined surface is provided with a first slide rail that is adapted to the first limiting slide groove. The first slide rail is slidably connected in the first limiting slide groove.

[0017] In some embodiments, the second retractable member includes a body, a second limiting groove, and a second limiting block;

[0018] The body includes a third surface close to the slider and a fourth surface away from the slider, both of which are inclined surfaces;

[0019] The second limiting groove is formed on the fourth surface and extends along the third direction;

[0020] The second limiting block is disposed on the surfaces of the main body that are adjacent to the third and fourth surfaces respectively, and is engaged within the abutment assembly;

[0021] The slider further includes a second inclined surface that abuts against the third surface;

[0022] The movable component includes a third inclined surface that abuts against the fourth surface. The third inclined surface is provided with a second slide rail that is adapted to the second limiting slide groove. The second slide rail is slidably connected within the second limiting slide groove.

[0023] In some embodiments, the sliding assembly further includes a first fixing plate and a first linkage member;

[0024] The first fixing plate is connected to the driving component and to one end of the sliding component;

[0025] One end of the first linkage component is fixedly connected to the moving component, and the other end of the first linkage component slides through the first fixed plate and is held in place on the side of the first fixed plate away from the moving component.

[0026] In some embodiments, the surface of the movable member adjacent to the third inclined surface is further provided with a third slide rail, the third slide rail extends along the third direction, the abutment component is disposed in a first movable groove adapted to the third slide rail, and the third slide rail is slidably connected in the first movable groove.

[0027] In some embodiments, the movable component further includes a second fixing plate, a first sealing plate, and a second linkage component;

[0028] The second fixing plate has a first moving groove extending in the first direction on the side opposite to the abutment component. The body slides through the second fixing plate, and the first limiting block is movably held in the first moving groove. The second fixing plate is connected to one end of the moving component.

[0029] The first sealing plate is disposed on the side of the second fixing plate opposite to the abutment component, and blocks the first limiting block;

[0030] One end of the second linkage is fixedly connected to the abutment component, and the other end of the second linkage is slidably inserted through the second fixing plate and held in place on the side of the second fixing plate away from the abutment component.

[0031] In some embodiments, the second fixing plate is further provided with a first through hole for the sliding member and the body to pass through and a first receiving groove communicating with the first through hole, and the first sealing plate is disposed in the first receiving groove;

[0032] The first movable groove is formed within the first receiving groove and communicates with the first through hole.

[0033] In some embodiments, the abutment assembly includes a third fixing plate and a second sealing plate;

[0034] The third fixing plate has a second moving groove extending in the second direction on the side near the second fixing plate. The main body slides through the third fixing plate, and the second limiting block is movably locked in the second moving groove.

[0035] The second sealing plate is located on the side of the third fixing plate near the second fixing plate, and blocks the second limiting block.

[0036] In some embodiments, the third fixing plate is provided with a second through hole for the sliding member, the first retracting member, and the second retracting member to pass through, and a second receiving groove communicating with the second through hole, and the second sealing plate is disposed in the second receiving groove;

[0037] The second movable groove is formed in the second receiving groove and communicates with the second through hole.

[0038] In some embodiments, the telescopic core mechanism further includes a support member and a fourth slide rail;

[0039] The support member is used to support the drive member, the sliding component, the supporting component, and the moving component;

[0040] The fourth slide rail is disposed on the support member and extends along the third direction. The sliding component, the supporting component and the moving component are respectively provided with second moving grooves at the positions corresponding to the fourth slide rail. The fourth slide rail is slidably connected in the second moving groove. Attached Figure Description

[0041] Figure 1 This is a three-dimensional structural diagram of a product proposed in one embodiment of this application.

[0042] Figure 2 This is a three-dimensional structural schematic diagram of the telescopic core mechanism proposed in one embodiment of this application.

[0043] Figure 3 yes Figure 2 An exploded view of the telescopic core mechanism.

[0044] Figure 4 yes Figure 2 A three-dimensional structural diagram of the actuation stroke of the telescopic core mechanism.

[0045] Figure 5 yes Figure 3 A partial structural diagram of the telescopic core mechanism.

[0046] Figure 6 yes Figure 2 A schematic diagram of the cross-sectional structure of the telescopic core mechanism along the VI-VI direction.

[0047] Figure 7 yes Figure 2 A schematic diagram of the cross-sectional structure of the telescopic core mechanism along the VII-VII direction.

[0048] Figure 8 yes Figure 3 A three-dimensional structural diagram of the moving component in the telescopic core mechanism.

[0049] Figure 9 yes Figure 3 A three-dimensional structural diagram of the supporting component in the telescopic core mechanism.

[0050] Explanation of main component symbols

[0051] Telescopic core mechanism 100

[0052] Drive component 10

[0053] First internal shrinkage component 20

[0054] First protrusion 21

[0055] Ontology 22

[0056] First surface 221

[0057] Second surface 222

[0058] First limiting groove 23

[0059] First limiting block 24

[0060] Second inner shrinkage component 30

[0061] Second protrusion 31

[0062] Main body 32

[0063] Third surface 321

[0064] Fourth surface 322

[0065] Second limiting groove 33

[0066] Second limiting block 34

[0067] Sliding component 40

[0068] Slider 41

[0069] First inclined plane 411

[0070] First slide rail 412

[0071] Second slope 413

[0072] First fixing plate 414

[0073] First linkage component 415

[0074] Support component 50

[0075] First moving slideway 51

[0076] Third fixing plate 52

[0077] Second moving slot 521

[0078] Second through hole 522

[0079] Second receiving slot 523

[0080] Second sealing plate 53

[0081] Mobile component 60

[0082] Moving part 61

[0083] Third inclined plane 611

[0084] Second slide rail 612

[0085] Third slide rail 613

[0086] Second fixing plate 62

[0087] First moving slot 621

[0088] First through hole 622

[0089] First receiving slot 623

[0090] First sealing plate 63

[0091] Second linkage component 64

[0092] Bearing component 70

[0093] Fourth slide rail 80

[0094] Product 200

[0095] Barrel 210

[0096] Mold 300

[0097] First driving phase S1

[0098] Second driving phase S2

[0099] Third Drive Phase S3 Detailed Implementation

[0100] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0101] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0102] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0103] The embodiments of the present invention described above will be described in detail below with reference to the accompanying drawings.

[0104] For some such as Figure 1 The product 200 shown, which has an internal annular barb 210, requires a mold 300 (as shown in 4) and a telescopic core mechanism, and is manufactured by injection molding. It is understood that this is done to clearly illustrate the structure of the telescopic mechanism. Figure 4 The mold 300 shown in the figure only shows a part of the structure. The telescopic core mechanism is mainly involved in the preparation of the annular barb 210 and part of the inner cavity of the product 200. After the preparation is completed, the telescopic core mechanism needs to be removed first, and then the product 200 is taken off from the mold 300. However, the existing telescopic core mechanisms are mainly six-lobed and eight-lobed, which are for products with a diameter greater than 20mm. For products with a diameter less than 20mm, there is currently no suitable telescopic core mechanism.

[0105] To address the shortcomings of existing technologies, please refer to Figure 2 One embodiment of this application proposes a four-lobed telescopic core mechanism 100 for use in the preparation of a product 200 with a diameter less than 20 mm, and capable of disengaging from the barb 210 inside the product 200 to smoothly remove the product 200 from the mold 300. Specifically, the telescopic core mechanism 100 includes a drive member 10, two first retractable members 20, two second retractable members 30, a sliding assembly 40, a holding assembly 50, and a moving assembly 60 slidably connected between the sliding assembly 40 and the holding assembly 50.

[0106] Please see Figure 3 and Figure 4One end of each of the two first retractable members 20 passes through the abutment component 50 and is slidably disposed within the moving component 60 along a first direction, in this embodiment, the first direction being the Z-axis direction. The other end of each of the two first retractable members 20 can extend out of the abutment component 50, and each of the first retractable members 20 has a first protrusion 21 on its outer periphery away from the moving component 60. One end of each of the two second retractable members 30 is slidably disposed within the abutment component 50 along a second direction perpendicular to the first direction, in this embodiment, the second direction being the Y-axis direction. The other end of each of the two second retractable members 30 can extend out of the abutment component 50, and each of the second retractable members 30 has a second protrusion 31 on its outer periphery away from the abutment component 50. The shape structure formed by the combination of the two first protrusions 21 and the two second protrusions 31 is adapted to the shape structure of the barb 210 on the product 200. The sliding component 40 is connected to the driving component 10 and slides along a third direction perpendicular to the first and second directions under the drive of the driving component 10. In this embodiment, the third direction is the X-axis direction. The sliding component 40 includes a sliding member 41 that passes through the moving component 60 and the abutting component 50 respectively. The sliding member 41 is slidably connected between the two first retractable members 20 and can bring the two first retractable members 20 closer to each other along the first direction when sliding. The other opposite sides of the sliding member 41 abut against the two second retractable members 30 respectively. The moving component 60 includes two moving members 61. One end of the two moving members 61 extends into the abutting component 50 and abuts against the two sides of the two second retractable members 30 respectively. The two moving members 61 can abut against the two second retractable members 30 and bring them closer to each other along the second direction when moving. The actuation stroke of the driving component 10 includes a first driving stage S1, a second driving stage S2, and a third driving stage S3, such as... Figure 4 As shown, in the first driving stage S1, the driving member 10 can drive the sliding component 40 to move away from the moving component 60 along a third direction and drive the sliding component 41 to slide, so that the two first retractable components 20 approach each other along the first direction; in the second driving stage S2, the driving member 10 can drive the sliding component 40 to drive the moving component 60 to move away from the abutting component 50 along a third direction, so that the two first retractable components 20 move along a third direction and the two moving components 61 respectively abut against the two second retractable components 30 and approach each other along the second direction; in the third driving stage S3, the driving member 10 can drive the sliding component 40 and the moving component 60 to move away from the product 200 along a third direction, so that the two first retractable components 20 and the two second retractable components 30 move along a third direction, thereby causing the two first retractable components 20 and the two second retractable components 30 to detach from the product 200.

[0107] The aforementioned telescopic core mechanism 100 first drives the sliding assembly 40 to move away from the moving assembly 60 along a third direction via the driving member 10, thereby causing the sliding member 41 to slide, so that the two first retractable members 20 move closer to each other along the first direction, causing the first protrusions 21 of the two first telescopic members to disengage from the barbs 210 of the product 200; then the driving member 10 continues to drive the sliding assembly 40 to move the moving assembly 60 away from the abutting assembly 50 along a third direction, so that the two first retractable members 20 move along the third direction and the two moving members 61 respectively abut against the two... The second retractable parts 30 move closer to each other along the second direction, causing the second protrusions 31 of the two second retractable parts 30 to disengage from the barb 210 of the product 200; then the driving component 10 further drives the sliding component 40 and the moving component 60 to move away from the product 200 along the third direction, so that the two first retractable parts 20 and the two second retractable parts 30 move along the third direction, thereby causing the two first retractable parts 20 and the two second retractable parts 30 to disengage from the product 200, completing the demolding. This method is suitable for products 200 with smaller dimensions and has a better demolding effect.

[0108] The aforementioned telescopic core mechanism 100 can be applied to the demolding operation of multiple products 200 simultaneously. In this embodiment, there are two products 200, and correspondingly, there are two sets of two first retractable parts 20 and two second retractable parts 30 corresponding to each product 200. It can be understood that in other embodiments, when there are three products 200, there are three sets of two first retractable parts 20 and two second retractable parts 30 corresponding to each product 200, but it is not limited to this.

[0109] Please see Figure 5 and Figure 6 In some embodiments, the first inner retractor 20 includes a body 22, a first limiting groove 23, and a first limiting block 24.

[0110] The body 22 is generally a flat, plate-like structure. The body 22 includes a first surface 221 near the slider 41 and a second surface 222 away from the slider 41. The first surface 221 is an inclined plane, and part of the second surface 222 is flat, while another part is curved, to participate in forming the inner cavity of the product 200. The first protrusion 21 is located on the other part of the second surface 222. A first limiting groove 23 is formed on the first surface 221. In this embodiment, the first limiting groove 23 is a dovetail groove. It is understood that in other embodiments, the first limiting groove 23 may also be a T-shaped groove, but it is not limited to this. A first limiting block 24 is located on the second surface 222 and is engaged within the moving assembly 60. In this embodiment, the first limiting block 24 is located at the end of the second surface 222 away from the first protrusion 21. The slider 41 includes a first inclined surface 411 that abuts against the first surface 221. The first inclined surface 411 is provided with a first slide rail 412 that is adapted to the first limiting slide groove 23. The first slide rail 412 is slidably connected in the first limiting slide groove 23. The slider 41 can drive the two bodies 22 to move closer to each other in the first direction.

[0111] Please see Figure 5 and Figure 7 In some embodiments, the second inner retractor 30 includes a body 32, a second limiting groove 33, and a second limiting block 34.

[0112] The main body 32 is generally a flat, plate-like structure. The main body 32 includes a third surface 321 near the slider 41 and a fourth surface 322 away from the slider 41. The third surface 321 is an inclined surface, and a portion of the fourth surface 322 is also an inclined surface. A portion of the fourth surface 322 is parallel to the third surface 321, while another portion is an arc-shaped surface to cooperate with the arc-shaped surface of the main body 22 in molding the product 200. A second protrusion 31 is located on the other portion of the fourth surface 322. A second limiting groove 33 is formed on the fourth surface 322. In this embodiment, the second limiting groove 33 is a dovetail groove. It is understood that in other embodiments, the second limiting groove 33 may also be a T-shaped groove, but it is not limited to this. A second limiting block 34 is located on the surfaces of the main body 32 adjacent to the third surface 321 and the fourth surface 322, and is engaged within the supporting assembly 50. The sliding member 41 also includes a second inclined surface 413 that abuts against the third surface 321. The second inclined surface 413 is arranged parallel to the third surface 321. The moving member 61 includes a third inclined surface 611 that abuts against the fourth surface 322. The third inclined surface 611 is provided with a second slide rail 612 that is adapted to the second limiting slide groove 33. The second slide rail 612 is slidably connected in the second limiting slide groove 33.

[0113] Please continue reading Figure 3In some embodiments, the sliding assembly 40 further includes a first fixing plate 414 and a first linkage member 415.

[0114] The first fixed plate 414 is connected to the driving member 10 and to one end of the sliding member 41. In this embodiment, the driving member 10 is a telescopic cylinder. One end of the first linkage member 415 is fixedly connected to the moving component 60, and the other end of the first linkage member 415 slides through the first fixed plate 414 and is held in place on the side of the first fixed plate 414 away from the moving component 60, so that the first fixed plate 414 slides relative to the first linkage member 415. In this embodiment, the first linkage member 415 is a pin.

[0115] In some embodiments, the surface of the movable member 61 adjacent to the third inclined surface 611 ( Figure 3 The upper and lower surfaces of the component are also provided with a third slide rail 613, which extends in a third direction and is located within the first movable groove 51 that is adapted to the third slide rail 613. Figure 8 As shown in the figure, the third slide rail 613 is slidably connected to the first movable slide groove 51.

[0116] Please see Figure 3 and Figure 8 In some embodiments, the movable component 60 further includes a second fixing plate 62, a first sealing plate 63, and a second linkage member 64.

[0117] The second fixing plate 62 has a first moving groove 621 extending in the first direction on the side opposite to the abutment component 50. Both bodies 22 slide through the second fixing plate 62, and the first limiting blocks 24 of the two bodies 22 are respectively movably engaged on the groove wall of the first moving groove 621, so that the bodies 22 slide in the first direction. The second fixing plate 62 is connected to one end of the moving member 61. The first sealing plate 63 is provided on the side of the second fixing plate 62 opposite to the abutment component 50 and seals one side of the first limiting block 24. One end of the second linkage member 64 is fixedly connected to the abutment component 50, and the other end of the second linkage member 64 slides through the second fixing plate 62 and is engaged on the side of the second fixing plate 62 opposite to the abutment component 50, so that the second fixing plate 62 slides relative to the second linkage member 64. In this embodiment, the second linkage member 64 is a pin.

[0118] Furthermore, in some embodiments, the second fixing plate 62 is also provided with a first through hole 622 and a first receiving groove 623. The first through hole 622 is used for the sliding member 41 and the body 22 to pass through. The first receiving groove 623 is connected to the first through hole 622. The first sealing plate 63 is disposed in the first receiving groove 623, and the first moving groove 621 is opened in the first receiving groove 623 and is connected to the first through hole 622.

[0119] Please see Figure 3 and Figure 9 In some embodiments, the abutment component 50 includes a third fixing plate 52 and a second sealing plate 53.

[0120] The third fixing plate 52 has two second moving grooves 521 extending in the second direction on the side near the second fixing plate 62. Two main bodies 32 slide through the third fixing plate 52, and the second limiting blocks 34 of the two main bodies 32 are respectively movably engaged on the groove walls of the two second moving grooves 521, so that the main bodies 32 slide in the second direction. The second sealing plate 53 is provided on the side of the third fixing plate 52 near the second fixing plate 62 and seals the side of the second limiting block 34.

[0121] Furthermore, in some embodiments, the third fixing plate 52 is provided with a second through hole 522 and a second receiving groove 523. The second through hole 522 is used for the sliding member 41, the first retracting member 20, and the second retracting member 30 to pass through. The second receiving groove 523 is connected to the second through hole 522. The second sealing plate 53 is disposed in the second receiving groove 523, and the second moving groove 521 is opened in the second receiving groove 523 and is connected to the second through hole 522.

[0122] Please continue reading Figure 3 In some embodiments, the telescopic core mechanism 100 further includes a support member 70 and a fourth slide rail 80; the support member 70 is used to support the drive member 10, the sliding component 40, the abutment component 50 and the moving component 60; the fourth slide rail 80 is disposed on the support member 70 and extends in a third direction, and the sliding component 40, the abutment component 50 and the moving component 60 are respectively provided with second moving grooves (not shown) at the positions corresponding to the fourth slide rail 80, and the fourth slide rail 80 is slidably connected in the second moving grooves so that the sliding component 40, the abutment component 50 and the moving component 60 can move along the fourth slide rail 80.

[0123] The working process of the telescopic core mechanism 100 described above is as follows:

[0124] After the product 200 is formed, the driving component 10 first drives the first fixed plate 414 to move away from the moving component 60 in the third direction during the first driving stage S1. The first fixed plate 414 drives the sliding component 41 to slide. Since the first slide rail 412 protruding on the first inclined surface 411 of the sliding component 41 is slidably connected in the first limiting slide groove 23, the sliding component 41 can drive the bodies 22 of the two first retractable components 20 to move closer to each other in the first direction when sliding, so that the first protruding parts 21 of the two first telescopic components disengage from the barb 210 of the product 200. During this process, the first fixed plate 414 slides relative to the first linkage component 415 and at the end of the movement, the first linkage component 415 is locked on the side of the first fixed plate 414 away from the moving component 60.

[0125] Next, in the second driving phase S2, the driving member 10 drives the first fixed plate 414 to move away from the supporting component 50 along a third direction. The first fixed plate 414 drives the second fixed plate 62 and the moving member 61 to move through the first linkage member 415, so that the two first retractable members 20 move along a third direction and the two moving members 61 respectively abut against the two second retractable members 30 and move closer to each other along a second direction. This further causes the second protrusions 31 of the two second retractable members 30 to disengage from the barb 210 of the product 200. During this process, the second fixed plate 62 slides relative to the second linkage member 64 and at the end of the movement, the second linkage member 64 is locked on the side of the second fixed plate 62 away from the supporting component 50.

[0126] Then, in the third driving stage S3, the driving component 10 drives the sliding component 40 and the moving component 60 to move away from the product 200 along a third direction. The second fixing plate 62 of the moving component 60 drives the third fixing plate 52 to move through the second linkage component 64, so that the two first inner retractors 20 and the two second inner retractors 30 move along a third direction, thereby causing the two first inner retractors 20 and the two second inner retractors 30 to detach from the product 200.

[0127] Finally, product 200 is removed from mold 400. It can be understood that the driving distances of the drive component 10 in the first driving stage S1, the second driving stage S2, and the third driving stage S3 can be specifically set according to actual needs, and are not limited here.

[0128] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be embraced within this application.

[0129] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and scope of the technical solutions of this application.

Claims

1. A telescopic core mechanism for disengaging from a barb inside a product with a diameter less than 20 mm, comprising a drive element, characterized in that, The telescopic core mechanism further includes two first retractable members, two second retractable members, a sliding component, a supporting component, and a movable component that is slidably connected between the sliding component and the supporting component. One end of each of the two first retractable members passes through the abutment assembly and is slidably disposed within the moving assembly in a first direction; the other end of each of the two first retractable members extends out of the abutment assembly; and each of the first retractable members has a first protrusion on its outer periphery away from the moving assembly. One end of each of the two second retractable members is slidably disposed within the abutment assembly along a second direction perpendicular to the first direction, and the other end of each of the two second retractable members extends out of the abutment assembly. Each of the two second retractable members has a second protrusion on its outer periphery away from the abutment assembly. The shape structure formed by the combination of the two first protrusions and the two second protrusions is adapted to the shape structure of the barb on the product. The sliding component is connected to the driving component and slides along a third direction perpendicular to the first direction and the second direction under the drive of the driving component. The sliding component includes a sliding member that passes through the moving component and the abutting component respectively. The sliding member is slidably connected between the two first retractable members and moves the two first retractable members closer to each other along the first direction when sliding. The other opposite sides of the sliding member abut against the two second retractable members respectively. The moving component includes two moving parts, one end of each of the two moving parts extends into the abutting component and abuts against both sides of the two second retractable parts respectively. When the two moving parts move, they abut against the two second retractable parts respectively and move closer to each other along the second direction. The actuation stroke of the driving member includes a first driving stage, a second driving stage, and a third driving stage. In the first driving stage, the driving member drives the sliding component to move away from the moving component along the third direction and causes the sliding component to slide, so that the two first retractable components move closer to each other along the first direction. In the second driving stage, the driving member drives the sliding component to move the moving component away from the abutting component along the third direction, so that the two first retractable components move along the third direction and the two moving components respectively abut against the two second retractable components moving closer to each other along the second direction. In the third driving stage, the driving member drives the sliding component and the moving component to move away from the product along the third direction, so that the two first retractable components and the two second retractable components move along the third direction, thereby causing the two first retractable components and the two second retractable components to detach from the product.

2. The telescopic core mechanism as described in claim 1, characterized in that, The first retractable component includes a body, a first limiting groove, and a first limiting block; The body includes a first surface close to the slider and a second surface away from the slider, wherein the first surface is an inclined surface; The first limiting groove is formed on the first surface; The first limiting block is disposed on the second surface and is engaged within the moving component; The sliding member includes a first inclined surface that abuts against the first surface. The first inclined surface is provided with a first slide rail that is adapted to the first limiting slide groove. The first slide rail is slidably connected in the first limiting slide groove. The sliding member drives the two bodies to move closer to each other in the first direction.

3. The telescopic core mechanism as described in claim 2, characterized in that, The second internal retraction component includes a main body, a second limiting groove, and a second limiting block; The main body includes a third surface close to the slider and a fourth surface away from the slider, both of which are inclined surfaces; The second limiting groove is formed on the fourth surface; The second limiting block is disposed on the surfaces of the main body that are adjacent to the third and fourth surfaces respectively, and is engaged within the abutment assembly; The slider further includes a second inclined surface that abuts against the third surface; The movable component includes a third inclined surface that abuts against the fourth surface. The third inclined surface is provided with a second slide rail that is adapted to the second limiting slide groove. The second slide rail is slidably connected within the second limiting slide groove.

4. The telescopic core mechanism as described in claim 3, characterized in that, The sliding assembly further includes a first fixing plate and a first linkage component; The first fixing plate is connected to the driving component and to one end of the sliding component; One end of the first linkage component is fixedly connected to the moving component, and the other end of the first linkage component slides through the first fixed plate and is held in place on the side of the first fixed plate away from the moving component.

5. The telescopic core mechanism as described in claim 3, characterized in that, The surface of the movable member adjacent to the third inclined surface is also provided with a third slide rail, the third slide rail extends along the third direction, and the abutment component is provided with a first movable slide groove adapted to the third slide rail, the third slide rail being slidably connected in the first movable slide groove.

6. The telescopic core mechanism as described in claim 5, characterized in that, The movable component also includes a second fixing plate, a first sealing plate, and a second linkage component; The second fixing plate has a first moving groove extending in the first direction on the side opposite to the abutment component. The body slides through the second fixing plate, and the first limiting block is movably held in the first moving groove. The second fixing plate is connected to one end of the moving component. The first sealing plate is disposed on the side of the second fixing plate opposite to the abutment component, and blocks the first limiting block; One end of the second linkage is fixedly connected to the abutment component, and the other end of the second linkage is slidably inserted through the second fixing plate and held in place on the side of the second fixing plate away from the abutment component.

7. The telescopic core mechanism as described in claim 6, characterized in that, The second fixing plate is also provided with a first through hole for the sliding member and the body to pass through and a first receiving groove communicating with the first through hole, and the first sealing plate is disposed in the first receiving groove; The first movable groove is formed within the first receiving groove and communicates with the first through hole.

8. The telescopic core mechanism as described in claim 7, characterized in that, The abutment assembly includes a third fixing plate and a second sealing plate; The third fixing plate has a second moving groove extending in the second direction on the side near the second fixing plate. The main body slides through the third fixing plate, and the second limiting block is movably locked in the second moving groove. The second sealing plate is located on the side of the third fixing plate near the second fixing plate, and blocks the second limiting block.

9. The telescopic core mechanism as described in claim 8, characterized in that, The third fixing plate has a second through hole for the sliding member, the first retractable member, and the second retractable member to pass through, and a second receiving groove communicating with the second through hole; the second sealing plate is disposed in the second receiving groove. The second movable groove is formed in the second receiving groove and communicates with the second through hole.

10. The telescopic core mechanism as described in claim 1, characterized in that, The telescopic core mechanism also includes a support component and a fourth slide rail; The support member is used to support the drive member, the sliding component, the supporting component, and the moving component; The fourth slide rail is disposed on the support member and extends along the third direction. The sliding component, the supporting component and the moving component are respectively provided with second moving grooves at the positions corresponding to the fourth slide rail. The fourth slide rail is slidably connected in the second moving groove.

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