Secondary ejection mechanism and mold

Abstract

The utility model relates to the technical field of molds, and particularly discloses a secondary ejection mechanism and a mold, in the secondary ejection mechanism, a limiting block is provided with a limiting groove extending along a first direction; the movable insert can move relative to the limiting block in the second direction forming an included angle with the first direction. The movable insert is provided with a first channel extending in the second direction and a locking channel extending in the first direction and communicating with the first channel. The push-out assembly comprises a push-pull piece, the push-pull piece can move in the first channel in the second direction, and the push-pull piece is provided with a push-pull groove; the triggering piece is arranged in the locking channel in a sliding mode, and when one end of the triggering piece stretches out of the locking channel and is located in the push-pull groove, the push-pull piece and the movable insert are locked and can drive the movable insert to move synchronously; or when the other end of the trigger piece extends out of the locking channel and is located in the limiting groove, the push-pull piece and the movable insert are unlocked, and the movable insert and the limiting block are locked. The arrangement can effectively prevent the push-pull piece from being broken; and meanwhile, the yield is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a secondary ejection mechanism and a mold. Background Art

[0002] In the process of using a mold for production, the mechanism for ejecting a product from the mold is an ejection mechanism. For the housing of the DC side disconnector of a new type of photovoltaic energy storage model, the side wall has a small thickness and a large depth. When forming, there are molds on both the inner and outer sides of the side wall. During ejection, a push rod is used to apply a thrust to the end of the side wall. However, due to the large frictional force on the side wall, a large thrust is required to demold the housing. Such a large thrust is likely to cause the push rod to break, and dents are likely to appear at the end of the side wall of the housing, affecting the yield rate.

[0003] Therefore, it is urgent to study a secondary ejection mechanism and a mold to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a secondary ejection mechanism and a mold to solve the problems in the prior art that the push rod in the ejection mechanism is prone to break, and dents are likely to appear at the end of the side wall of the housing, affecting the yield rate.

[0005] To achieve the above object, the utility model adopts the following technical solutions:

[0006] A secondary ejection mechanism for jacking up and demolding a product and capable of self-resetting, comprising:

[0007] A limit block having a limit groove extending in a first direction;

[0008] A movable insert block capable of moving relative to the limit block in a second direction, the second direction being set at an angle to the first direction; the movable insert block has a first channel extending in the second direction and a locking channel extending in the first direction and communicating with the first channel;

[0009] A pushing component, the pushing component includes a pushing and pulling member, the pushing and pulling member is movably disposed in the first channel in the second direction, and the pushing and pulling member has a pushing and pulling groove;

[0010] A triggering member slidably disposed in the locking channel. When one end of the triggering member extends out of the locking channel and is located in the pushing and pulling groove, the pushing and pulling member is locked with the movable insert block and can drive it to move synchronously; or, when the other end of the triggering member extends out of the locking channel and is located in the limit groove, the pushing and pulling member is unlocked from the movable insert block, and the movable insert block is locked with the limit block.

[0011] As an alternative technical solution of a secondary ejection mechanism, the trigger member is in the shape of a cuboid, and the lower part of one end close to the push-pull groove has a first guiding inclined surface, and the first guiding inclined surface slopes upward along the direction towards the push-pull member; the push-pull groove is formed by the inner concavity of a part of the side wall of the push-pull member close to the movable insert block, and its lower groove wall slopes downward along the direction towards the movable insert block to form a first abutting portion capable of abutting against the first guiding inclined surface.

[0012] As an alternative technical solution of a secondary ejection mechanism, the trigger member is in the shape of a cuboid, and the lower part of one end close to the limit groove has a second guiding inclined surface, and the second guiding inclined surface slopes upward along the direction towards the limit block; the limit groove is formed by the inner concavity of a part of the side wall of the limit block close to the movable insert block, and its lower groove wall slopes downward along the direction towards the movable insert block to form a second abutting portion capable of abutting against the second guiding inclined surface.

[0013] As an alternative technical solution of a secondary ejection mechanism, the upper parts of both ends of the trigger member in the first direction each have a guiding arc surface, and each of the guiding arc surfaces extends downward along the direction away from each other.

[0014] As an alternative technical solution of a secondary ejection mechanism, the first channel includes a main channel and a receiving channel communicated with the main channel and arranged above the main channel, the diameter of the receiving channel is larger than that of the main channel, the push-pull member is in the shape of a rod, and the upper part of the push-pull member has a stop portion, the diameter of the stop portion is larger than that of the main channel, the push-pull member is movably constrained in the main channel, and the stop portion is movably constrained in the receiving channel. Under the action of its own downward movement, the push-pull member can drive the trigger member to move into the push-pull groove, and the stop portion of the push-pull member can abut against the plane between the main channel and the receiving channel in the movable insert block to drive the movable insert block to move downward and reset.

[0015] As an alternative technical solution of a secondary ejection mechanism, in the state where the movable insert block moves downward to the reset position, the limit groove and the locking channel are arranged at intervals in the second direction, and the distance between the limit groove and the locking channel in the second direction is L, and 5mm ≤ L ≤ 20mm.

[0016] As an alternative technical solution of a secondary ejection mechanism, the push-pull member includes a push-pull rod, a pull-down screw and a stop ring, the outer diameter of the stop ring is larger than that of the main channel, the lower end surface of the stop ring forms the stop portion, the pull-down screw passes through the stop ring and is in threaded cooperation with the threaded hole of the push-pull rod, and the push-pull groove is formed in the push-pull rod.

[0017] As an alternative technical solution of a secondary ejection mechanism, the movable insert has a second channel extending in the second direction; the ejection assembly includes a ejector rod that moves synchronously with the push-pull member, the ejector rod is movably disposed in the second channel in the second direction and can penetrate out of the second channel.

[0018] As an alternative technical solution of a secondary ejection mechanism, the movable insert has an ejection portion, the second channel penetrates through the ejection portion in the first direction, and when the push-pull member is locked with the movable insert, the top end of the ejector rod is flush with the top surface of the ejection portion.

[0019] A mold includes a movable template, a movable bottom plate, a stationary template, and the secondary ejection mechanism according to any one of the above technical solutions. The movable template and the stationary template cooperate to form a mold cavity for molding a product therebetween. The limit block is relatively fixed to the movable template. The ejection assembly is disposed on the movable bottom plate and can move synchronously with the movable bottom plate.

[0020] As an alternative technical solution of a mold, the movable template has a lower groove with an upward opening, and the stationary template has an upper groove with a downward opening. The movable template and the stationary template are buckled so that the upper groove and the lower groove form a production cavity. The mold cavity is located inside the production cavity. The movable template is provided with a movable mold channel communicating with the production cavity. The push-pull member penetrates through the movable mold channel and is partially located in the production cavity.

[0021] As an alternative technical solution of a mold, the movable template is provided with a movable mold channel communicating with the mold cavity. The movable insert has a second channel extending in the second direction and communicating with the mold cavity. The ejection assembly includes an ejector rod. In the second direction, the ejector rod penetrates through the movable mold channel and the second channel, and part of it can extend into the mold cavity.

[0022] The beneficial effects of the present utility model are as follows:

[0023] The present utility model provides a secondary ejection mechanism. Through the arrangement of the trigger member, the movable insert and the push-pull member can be locked, so that the movable insert can move synchronously with the push-pull member, thereby completing the demolding action in the first stage, enabling the product to be demolded with the movable insert, and thus greatly reducing the friction force on the demolded product. After the trigger member and the limit block are locked subsequently, the push-pull member can be unlocked from the movable insert, and the push-pull member can move independently relative to the movable insert to complete the demolding action in the second stage. During the independent movement of the push-pull member, the product can be separated from the movable insert, thereby completing the complete demolding of the product. Since the friction force on the product in the second stage is much smaller than that in the first stage, the requirements for the push-pull member are lower, avoiding its fracture and improving the mold opening efficiency; at the same time, no indentation will appear at the contact between the product and the push-pull member, improving the yield rate.

[0024] The present utility model provides a mold, which includes the above-mentioned secondary ejection mechanism. During use, it can perform secondary ejection on the product to enable the product to be demolded, with relatively low requirements for the pushing and pulling member, avoiding its fracture, and improving the mold opening efficiency. At the same time, there will be no indentation at the contact between the product and the pushing and pulling member, improving the finished product rate. Finally, the self-resetting design of the secondary ejection mechanism enables it to automatically reset without the need for other operations after demolding, facilitating the rapid connection of subsequent product processing and improving the efficiency of continuous production of products. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic structural view of the mold in the embodiment of the present utility model;

[0026] Figure 2 is a structural sectional view of the secondary ejection mechanism and the moving template in the embodiment of the present utility model;

[0027] Figure 3 is Figure 2 an enlarged view of part A in

[0028] Figure 4 is Figure 3 an enlarged view of part B in

[0029] Figure 5 is a schematic structural view of the secondary ejection mechanism and the housing in the embodiment of the present utility model;

[0030] Figure 6 is a sectional view of the mold in the embodiment of the present utility model.

[0031] In the figure:

[0032] 1000, housing; 1100, connecting plate; 1200, side plate;

[0033] 100, limiting block; 110, limiting groove; 111, second abutting part;

[0034] 200, movable insert; 210, first channel; 211, main channel; 212, accommodating channel; 220, locking channel; 230, second channel; 240, ejecting part;

[0035] 300, ejecting assembly; 310, pushing and pulling member; 311, push rod; 3111, pushing and pulling groove; 3112, first abutting part; 312, downward pull screw; 313, stop ring; 320, ejector rod;

[0036] 400, triggering part; 410, first guiding inclined surface; 420, second guiding inclined surface; 430, first guiding arc surface; 440, second guiding arc surface;

[0037] 510. Moving template; 511. Lower groove; 512. Moving die channel; 520. Moving bottom plate; 530. Stationary template; 531. Upper groove; 540. Mold cavity. Detailed implementation manners

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the 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 making creative efforts shall fall within the protection scope of the present utility model.

[0039] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. 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 thus should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions. Moreover, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the first feature has a lower horizontal height than the second feature.

[0040] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "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 a mechanical connection or an electrical 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.

[0041] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0042] As Figures 2 to 5As shown in the figure, this embodiment provides a secondary ejection mechanism, which is applied to a mold to perform secondary ejection on a product, reduce the requirements for the ejection component 300, and improve the yield rate. The secondary ejection mechanism includes a limit block 100, a movable insert 200, an ejection component 300, and an ejection component 300. Among them, the limit block 100 has a limit groove 110 extending in the first direction; the movable insert 200 can move relative to the limit block 100 in a second direction arranged at an angle to the first direction. The movable insert 200 has a first channel 210 extending in the second direction and a locking channel 220 extending in the first direction and communicating with the first channel 210; the ejection component 300 includes a push-pull member 310. The push-pull member 310 can move in the first channel 210 in the second direction. One side of the push-pull member 310 facing the locking channel 220 has a push-pull groove 3111; a trigger member 400 is slidably arranged in the locking channel 220 and can slide along the axial direction of the locking channel 220 in the locking channel 220. When one end of the trigger member 400 extends out of the locking channel 220 and is located in the push-pull groove 3111, the push-pull member 310 is locked with the movable insert 200 and can drive it to move synchronously; when the other end of the trigger member 400 extends out of the locking channel 220 and is located in the limit groove 110, the push-pull member 310 is unlocked from the movable insert 200, and the movable insert 200 is locked with the limit block 100.

[0043] Through the setting of the trigger member 400 in the secondary ejection mechanism of this embodiment, the movable insert 200 and the push-pull member 310 can be locked, so that the movable insert 200 can move synchronously with the push-pull member 310, thereby completing the demolding action in the first stage, enabling the product to be demolded with the movable insert 200, so that the friction force received by the demolded product is greatly reduced. After the subsequent trigger member 400 and the limit block 100 are locked, the push-pull member 310 can be unlocked from the movable insert 200, and the push-pull member 310 can move independently relative to the movable insert 200 to complete the demolding action in the second stage. During the independent movement of the push-pull member 310, the product can be separated from the movable insert 200, thereby completing the complete demolding of the product. Since the friction force received by the product in the second stage is much smaller than that in the first stage, the requirements for the push-pull member 310 are lower, avoiding its fracture and improving the mold opening efficiency; at the same time, no indentation will appear at the contact between the product and the push-pull member 310, improving the yield rate.

[0044] In some embodiments, the trigger member 400 is in the shape of a cuboid, and the lower part of one end close to the push-pull groove 3111 has a first guiding inclined surface 410, and the first guiding inclined surface 410 slopes upward along the direction towards the push-pull member 310; the push-pull groove 3111 is formed by the inner concave of a part of the side wall of the push-pull member 310 close to the movable insert 200, and its lower groove wall slopes downward along the direction towards the movable insert 200 to form a first abutting portion 3112 that can abut against the first guiding inclined surface 410. During the upward movement of the push-pull member 310, the first abutting portion 3112 applies an upward force to the first guiding inclined surface 410 of the trigger member 400, and at the same time applies a force away from the push-pull member 310, so that during the upward movement of the push-pull member 310, the movable insert 200 is driven to rise together until the locking channel 220 and the limiting groove 110 are aligned, the trigger member 400 moves out of the push-pull groove 3111 and moves into the limiting groove 110. At this point, the trigger member 400 completes the displacement, unlocking the push-pull member 310 and the movable insert 200. At the same time, the movable insert 200 is locked with the limiting block 100, so that during the continuous upward movement of the push-pull member 310, the movable insert 200 remains stationary.

[0045] Combined Figures 2 to 4 As shown, for the trigger member 400 to smoothly enter the limiting groove 110, the upper part of one end of the trigger member 400 close to the limiting block 100 has a first guiding arc surface 430, and the first guiding arc surface 430 extends downward along the direction towards the limiting block 100. During the process of the trigger member 400 entering the limiting groove 110, the first guiding arc surface 430 plays a guiding role to facilitate the smooth entry of the trigger member 400, reducing the requirement for the alignment accuracy between the two, thereby reducing the processing cost.

[0046] When the product is demolded, before production again, the movable insert 200 needs to be moved to the reset position. To ensure that the downward movement of the push-pull member 310 can drive the movable insert 200 to move synchronously, in some embodiments, the first channel 210 includes a main channel 211 and a receiving channel 212 that is communicated with the main channel 211 and is arranged above the main channel 211. The diameter of the receiving channel 212 is larger than that of the main channel 211. The push-pull member 310 is in the shape of a rod, and the upper part of the push-pull member 310 has a stop portion, and the diameter of the stop portion is larger than that of the main channel 211. The push-pull member 310 is movably constrained in the main channel 211, and the stop portion is movably constrained in the receiving channel 212. Under its own downward movement, the push-pull member 310 can drive the trigger member 400 to move into the push-pull groove 3111, and the stop portion of the push-pull member 310 can abut against the plane between the main channel 211 and the receiving channel 212 in the movable insert 200 to drive the movable insert 200 to move downward and reset.

[0047] When the movable insert block 200 moves downward to the reset position, the limiting groove 110 and the locking channel 220 are spaced apart in the second direction, and the distance between the limiting groove 110 and the locking channel 220 in the second direction is L, where 5 mm ≤ L ≤ 20 mm. Exemplarily, when the movable insert block 200 moves downward to the reset position, the distance between the limiting groove 110 and the locking channel 220 in the second direction is 10 mm. This setting enables the push-pull member 310 to carry the movable insert block 200 to move upward synchronously by 10 mm, and can trigger the trigger member 400 during the continuous upward movement, so that the left end of the trigger member 400 moves out of the push-pull groove 3111, and the right end moves into the limiting groove 110. In this state, the movable insert block 200 remains fixed, and the push-pull member 310 can rise independently; when the product is demolded, the push-pull member 310 moves downward, and when the push-pull groove 3111 and the limiting groove 110 are flush, the trigger member 400 can be triggered during the continuous downward movement, so that the right end of the trigger member 400 moves out of the limiting groove 110, and the left end moves into the push-pull groove 3111. In this state, the push-pull member 310 drives the movable insert block 200 to move downward together by 10 mm to complete the reset action of the movable insert block 200.

[0048] In other embodiments, when the movable insert block 200 moves downward to the reset position, the distance L between the limiting groove 110 and the locking channel 220 in the second direction can also be 2 mm or 3 mm; of course, when the movable insert block 200 moves downward to the reset position, the distance L between the limiting groove 110 and the locking channel 220 in the second direction can also be 25 mm or 30 mm, and can also be reasonably set according to the specific dimensions of the product, and is not limited to the above values.

[0049] Exemplarily, the push-pull member 310 includes a push-pull rod 311, a pull-down screw 312 and a stop ring 313. The outer diameter of the stop ring 313 is larger than the diameter of the main channel 211. The lower end surface of the stop ring 313 forms a stop portion. The pull-down screw 312 passes through the stop ring 313 and is in threaded cooperation with the threaded hole at the top of the push-pull rod 311 to screw the stop ring 313 and the push-pull rod 311 together. The push-pull groove 3111 is opened on the push-pull rod 311. The cooperation of the stop ring 313 and the pull-down screw 312 is convenient for assembly, and can effectively press the annular surface between the main channel 211 and the accommodating channel 212, thereby pushing the movable insert block 200 downward.

[0050] To unlock the movable insert 200 and the limit block 100, in some embodiments, the trigger member 400 is in the shape of a cuboid, and the lower part of one end close to the limit groove 110 has a second guiding inclined surface 420, and the second guiding inclined surface 420 slopes upward along the direction towards the limit block 100; the limit groove 110 is formed by the inner concave of a part of the side wall of the limit block 100 close to the movable insert 200, and its lower groove wall slopes downward along the direction towards the movable insert 200 to form a second abutting portion 111 capable of abutting against the second guiding inclined surface 420, so that when the push-pull member 310 moves downward, a downward force can be applied to the trigger member 400. Under the action of the second guiding inclined surface 420 and the second abutting portion 111, the trigger member 400 has a tendency to move towards the push-pull member 310. When the push-pull groove 3111 of the push-pull member 310 is aligned with the trigger member 400, the trigger member 400 moves out of the limit groove 110 and moves into the push-pull groove 3111, thereby completing the unlocking of the movable insert 200 and the limit block 100 and the locking of the push-pull member 310 and the movable insert 200. During the process of the push-pull member 310 continuing to descend, the movable insert 200 is driven to move downward synchronously to the reset position to complete the next production.

[0051] To facilitate the smooth entry of the trigger member 400 into the push-pull groove 3111, the upper part of one end of the trigger member 400 close to the push-pull member 310 has a second guiding arc surface 440, and the second guiding arc surface 440 extends downward along the direction towards the push-pull member 310. During the process of the trigger member 400 entering the push-pull groove 3111, the second guiding arc surface 440 plays a guiding role to facilitate the smooth entry of the trigger member 400, reducing the requirement for the alignment accuracy between the two, thereby reducing the processing cost.

[0052] For ease of machining, the push rod 311 is of a cylindrical structure, and there are at least two push rods 311, and there are at least two first channels 210. At least two push rods 311 are correspondingly and movably constrained in the two first channels 210. Among them, the two push rods 311 are arranged at intervals in the third direction. It should be noted that the first direction is the left-right direction, the second direction is the up-down direction, and the third direction is the front-back direction, and the first direction, the second direction, and the third direction are perpendicular to each other pairwise. To match the structure of the product itself, the movable insert 200 has a second channel 230 extending in the second direction; the ejection assembly 300 includes a push rod 320 that moves synchronously with the push-pull member 310, and the push rod 320 is movably disposed in the second channel 230 along the second direction and can pass through the second channel 230. This setting enables the push rod 320 and the push-pull member 310 to simultaneously push against the product, thereby adapting to products with different structures.

[0053] Combined with Figure 5As shown, in some embodiments, the product may be the housing 1000 of a DC-side disconnect switch. The housing 1000 is U-shaped and includes a connecting plate 1100 and side plates 1200 connected to the left and right sides of the connecting plate 1100. The thickness of the side plates 1200 is 1 mm - 2 mm, and the depth is 50 mm - 60 mm. The movable insert 200 has an ejection portion 240, and the second channel 230 penetrates through the ejection portion 240 in the first direction. When the push-pull member 310 is locked with the movable insert 200, the top end of the ejector rod 320 is flush with the top surface of the ejection portion 240. During the demolding process of the first stage, the top surface of the ejection portion 240 and the top end of the ejector rod 320 both abut against the lower end of the side plate 1200, and the ejection portion 240 and the ejector rod 320 rise synchronously to jointly lift the side plate 1200, thereby realizing the demolding of the first stage of the product. During this process, the entire bottom of the side plate 1200 is stressed, and at the same time, the outer side of the side plate 1200 abuts against the movable insert 200. Therefore, there is also a certain frictional force between the side plate 1200 and the movable insert 200. During the process of pushing the product upward, the frictional force between the side plate 1200 and the movable insert 200 also plays an assisting role and can drive the side plate 1200 to move upward. During this stage, the top surface of the ejection portion 240, the side wall of the movable insert 200 close to the side plate 1200, and the ejector rod 320 act simultaneously, making the rising process of the side plate 1200 easier and requiring a lower ejection force to be applied to the ejector rod 320; in the second stage, the ejector rod 320 moves upward relative to the movable insert 200 to separate the side plate 1200 from the movable insert 200. Since the side plate 1200 has been separated from the core mold during this stage and the side plate 1200 is not clamped by the core mold and the movable insert 200, the force required for the side plate 1200 to separate from the movable insert 200 is greatly reduced, thereby greatly reducing the ejection force that needs to be applied to the ejector rod 320. Thus, the requirement for the ejector rod 320 is reduced throughout the entire process of the first stage and the second stage, avoiding the breakage of the ejector rod 320 during the force application process; in addition, in the first stage, since the top surface of the ejection portion 240 and the top end of the ejector rod 320 both abut against the lower end of the side plate 1200 and act synchronously to lift the side plate 1200, the stress area at the lower end of the side plate 1200 is larger, avoiding the appearance of pits.

[0054] Combined Figure 1 、 Figure 2 and Figure 6As shown in the figure, this embodiment also provides a mold, which includes a movable template 510, a movable bottom plate 520, a stationary template 530, and the secondary ejection mechanism in the above embodiment. The movable template 510 and the stationary template 530 cooperate to form a mold cavity 540 for casting products therebetween. The limiting block 100 is relatively fixed to the movable template 510. The ejection assembly 300 is provided on the movable bottom plate 520 and can move synchronously with the movable bottom plate 520. By borrowing the above secondary ejection mechanism, when the mold is opened, the requirements for the ejection assembly 300 are reduced, the ejection assembly 300 is prevented from breaking, the mold opening efficiency is improved, and the product is prevented from having pits, thereby improving the yield rate.

[0055] The movable template 510 has a lower groove 511 with an upward opening, and the stationary template 530 has an upper groove 531 with a downward opening. The movable template 510 and the stationary template 530 are buckled together so that the upper groove 531 and the lower groove 511 form a production cavity. The mold cavity 540 is located inside the production cavity. The movable template 510 is provided with a movable mold channel 512 communicating with the production cavity. The push-pull member 310 is inserted through the movable mold channel 512 and partially located in the production cavity. This setting enables the entire push-pull member 310 to be located inside the mold, protecting the push-pull member 310; at the same time, it also prevents external debris from affecting the push-pull member 310 and causing jamming during its movement; furthermore, it helps to reduce the size of the mold; finally, it can also make the appearance of the mold simple and avoid the push-pull member 310 causing harm to the staff during its relative movement with the mold.

[0056] The movable template 510 is provided with a movable mold channel 512 communicating with the mold cavity 540. The movable insert 200 has a second channel 230 extending in the second direction and communicating with the mold cavity 540. The ejection assembly 300 includes a ejector rod 320. Along the second direction, the ejector rod 320 is inserted through the movable mold channel 512 and the second channel 230, and part of it can extend into the mold cavity 540. Similarly, the above setting can protect the ejector rod 320, prevent external debris from affecting the ejector rod 320 and causing jamming during its movement; at the same time, improve the smoothness of the movement of the ejector rod 320, and help to improve the simplicity of the appearance of the mold, avoiding the ejector rod 320 causing harm to the staff during its relative movement with the mold; finally, it is fixed to the movable bottom plate 520 together with the push-pull member 310, reducing the number of driving mechanisms and lowering the cost.

[0057] Obviously, the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. The secondary ejection mechanism is used to lift and demould the product and can reset itself. Its characteristics are: include: A limiting block (100) having a limiting groove (110) extending along a first direction; A movable insert (200) is movable relative to the limit block (100) along a second direction, the second direction being arranged at an angle to the first direction; the movable insert (200) comprises a first channel (210) extending along the second direction and a locking channel (220) extending along the first direction and communicating with the first channel (210); An ejection assembly (300), the ejection assembly (300) comprising a push-pull member (310), the push-pull member (310) being movable in the first channel (210) along a second direction, the push-pull member (310) having a push-pull groove (3111); A trigger member (400) is slidably disposed in the locking channel (220). When one end of the trigger member (400) extends out of the locking channel (220) and is located in the push-pull groove (3111), the push-pull member (310) is locked with the movable insert (200) and can drive them to move synchronously; or, when the other end of the trigger member (400) extends out of the locking channel (220) and is located in the limiting groove (110), the push-pull member (310) is unlocked from the movable insert (200), and the movable insert (200) is locked with the limiting block (100).

2. The secondary ejection mechanism according to claim 1, characterized in that: The trigger member (400) is in the shape of a rectangular parallelepiped, and has a first guiding inclined surface (410) at the lower part of one end close to the push-pull groove (3111), and the first guiding inclined surface (410) is inclined upward in a direction toward the push-pull member (310); the push-pull groove (3111) is formed by a concave portion of the side wall of the push-pull member (310) close to the movable insert (200), and its lower groove wall is inclined downward in a direction toward the movable insert (200) to form a first abutting portion (3112) that can abut against the first guiding inclined surface (410).

3. The secondary ejection mechanism according to claim 1, characterized in that: The trigger member (400) is in the shape of a rectangular parallelepiped, and has a second guiding inclined surface (420) at the lower part of one end close to the limiting groove (110), and the second guiding inclined surface (420) is inclined upward in a direction toward the limiting block (100); the limiting groove (110) is formed by a concave portion of the side wall of the limiting block (100) close to the movable insert (200), and its lower groove wall is inclined downward in a direction toward the movable insert (200) to form a second abutting portion (111) that can abut against the second guiding inclined surface (420).

4. The secondary ejection mechanism according to claim 1, characterized in that: The trigger member (400) has a guide arc surface at the upper part of each of the two ends along the first direction, and each of the guide arc surfaces extends downward in a direction away from each other.

5. The secondary ejection mechanism according to claim 1, characterized in that: The first channel (210) comprises a main channel (211) and a receiving channel (212) which is in communication with the main channel (211) and is arranged above the main channel (211); the diameter of the receiving channel (212) is greater than the diameter of the main channel (211); the push-pull member (310) is rod-shaped, and the upper part of the push-pull member (310) has a stopper; the diameter of the stopper is greater than the diameter of the main channel (211); the push-pull member (310) is rod-shaped, and the upper part of the push-pull member (310) has a stopper; the diameter of the stopper is greater than the diameter of the main channel (211); 0) is movably constrained in the main channel (211), and the stopper is movably constrained in the accommodating channel (212); under the downward movement of itself, the push-pull member (310) can drive the trigger member (400) to move into the push-pull groove (3111), and the stopper of the push-pull member (310) can abut against the plane between the main channel (211) and the accommodating channel (212) in the movable insert (200) to drive the movable insert (200) to move downward and reset.

6. The secondary ejection mechanism according to claim 5, characterized in that: When the movable insert (200) moves down to the reset position, the limiting groove (110) and the locking channel (220) are spaced apart in the second direction, and the spacing between the limiting groove (110) and the locking channel (220) in the second direction is L, 5mm≤L≤20mm.

7. The secondary ejection mechanism according to claim 5, characterized in that: The push-pull member (310) includes a push-pull rod (311), a pull-down screw (312) and a stop ring (313), wherein the outer diameter of the stop ring (313) is greater than the diameter of the main channel (211), and the lower end surface of the stop ring (313) forms the stop portion, the pull-down screw (312) passes through the stop ring (313) and is threadedly engaged with the screw hole of the push-pull rod (311), and the push-pull groove (3111) is opened on the push-pull rod (311).

8. The secondary ejection mechanism according to any one of claims 1 to 7, characterized in that: The movable insert (200) has a second channel (230) extending along a second direction; the ejection assembly (300) includes a push rod (320) that moves synchronously with the push-pull member (310); the push rod (320) is movable in the second channel (230) along the second direction and can pass through the second channel (230).

9. The secondary ejection mechanism according to claim 8, characterized in that: The movable insert (200) has an ejector portion (240), the second channel (230) penetrates the ejector portion (240) along a first direction, and when the push-pull member (310) is locked with the movable insert (200), the top end of the ejector rod (320) is flush with the top surface of the ejector portion (240).

10. A mold, characterized in that The invention comprises a movable template (510), a movable bottom plate (520), a static template (530) and a secondary ejection mechanism as claimed in any one of claims 1 to 9, wherein the movable template (510) and the static template (530) cooperate to form a mold cavity (540) for molding a product therebetween, the limit block (100) is relatively fixed to the movable template (510), and the ejection assembly (300) is arranged on the movable bottom plate (520) and can move synchronously with the movable bottom plate (520).

11. The mold according to claim 10, characterized in that: The movable template (510) has a lower groove (511) opening upward, and the static template (530) has an upper groove (531) opening downward. The movable template (510) and the static template (530) are buckled together so that the upper groove (531) and the lower groove (511) form a production cavity. The mold cavity (540) is located inside the production cavity. The movable template (510) is provided with a movable mold channel (512) communicating with the production cavity. The push-pull member (310) is passed through the movable mold channel (512) and is partially located in the production cavity.

12. The mold according to claim 10, characterized in that: The movable mold plate (510) is provided with a movable mold channel (512) connected to the mold cavity (540), and the movable insert (200) has a second channel (230) extending along the second direction and connected to the mold cavity (540); the ejection assembly (300) includes a push rod (320), and along the second direction, the push rod (320) is penetrated by the movable mold channel (512) and the second channel (230), and a part of the push rod (320) can extend into the mold cavity (540).

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