A demolding mechanism for inverted structure products

Abstract

The application discloses a demolding mechanism for a product with an inverted buckle structure, comprising an inclined guide, a main base, a sliding piece and a movable insert. The inclined guide drives the sliding piece to slide back and forth, and the sliding piece drives the movable insert to move up and down to demold the product with the inverted buckle, and then the movable insert is moved back to complete the overall demolding through a stroke mechanism. The mechanism realizes automatic demolding, solves the problems of low efficiency and poor safety of traditional manual operation, and is suitable for production of injection-molded products with inverted buckles.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of injection mold demolding, in particular to a demolding mechanism for products with reverse-docking structures. BACKGROUND

[0002] In the production of injection products with reverse-docking structures such as oil nozzles, movable inserts 20 are usually used to form products 10. Because the products 10 are formed with reverse-docking structures 101, there is structural interference between the movable inserts and the products, which cannot be directly demolded. The overall demolding operation can only be completed after the movable inserts are moved downward to avoid the reverse-docking structures.

[0003] In the traditional production method, manual intervention is required for the entire operation of the movable inserts: before injection molding, the movable inserts are manually placed in the corresponding position of the mold; after injection molding is completed, the movable inserts are manually moved downward to avoid the reverse-docking structures, and then the movable inserts are removed. This method has obvious defects: manual placement of the movable inserts is required during production, and the movable inserts are manually removed after the products are demolded. This method has obvious defects: on the one hand, the manual operation steps are complicated, resulting in low production efficiency and difficulty in meeting the batch production requirements; on the other hand, manual intervention in the mold opening and closing process poses a safety hazard of being pinched by the mold, and the safety is poor. SUMMARY

[0004] The purpose of the present application is to overcome the defects of the prior art, and provide a demolding mechanism for products with reverse-docking structures, which automatically demolds without manual operation, improves efficiency and safety.

[0005] The technical solution of the present application is a demolding mechanism for products with reverse-docking structures, which comprises a slope guide mounted on an upper mold and a main seat mounted on a lower mold, wherein the main seat is provided with a sliding member and a movable insert;

[0006] The sliding member is slidably assembled on the main seat in the front-rear direction and is in inclined abutment with the slope guide in the rear direction, so that when the slope guide moves up and down, the sliding member can be driven to slide forward and backward;

[0007] The movable insert is slidably assembled on the main seat in the up-down direction and is in inclined abutment with the sliding member in the downward direction, so that when the sliding member moves forward relative to the movable insert, the movable insert can be pushed upward; when the sliding member moves backward relative to the movable insert, the movable insert can move downward to demold the reverse-docking structure of the product, and then the movable insert moves backward in linkage with the sliding member through the stroke mechanism.

[0008] By means of the inclined abutment of the inclined guide and the sliding member and the inclined abutment of the sliding member and the movable insert, the movable insert can automatically move up and down and slide forward and backward during the opening and closing of the mold. When the mold is opened, the movable insert first moves downward to get out of the product reverse buckle, and then moves backward together with the sliding member to complete the overall demolding. The whole demolding process does not need manual participation, which not only improves the production efficiency, but also avoids the safety hidden danger caused by manual operation. In addition, the demolding mechanism is simple in structure, easy to manufacture and maintain, and reduces the production cost. The demolding mechanism of the present application is suitable for various injection molding products with reverse buckles, and has wide application prospect.

[0009] Further, the stroke mechanism includes a stroke sub-member and a stroke slot arranged on the sliding member and the movable insert respectively, and the stroke sub-member is arranged in the stroke slot and can move forward and backward, and when the stroke sub-member moves backward together with the sliding member to abut against the limiting slot surface of the stroke slot, the movable insert is driven to move backward.

[0010] By means of the cooperation of the stroke sub-member and the stroke slot, the stable linkage of the sliding member and the movable insert during demolding is ensured. When the sliding member moves backward, the stroke sub-member smoothly slides in the stroke slot until it abuts against the limiting slot surface, at this time, the stroke sub-member transmits force to the movable insert to make it move backward together. This design not only improves the accuracy and stability of demolding, but also makes the structure of the whole demolding mechanism more compact and reasonable.

[0011] Further, the sliding member is provided with a clamping slot, the stroke sub-member is fitted into the clamping slot, and part of the stroke sub-member is exposed to the clamping slot and located in the stroke slot.

[0012] By means of the above further arrangement, the stroke sub-member not only can smoothly slide in the stroke slot, but also can prevent the stroke sub-member from deviating or falling off during demolding by the limiting action of the clamping slot, so as to ensure the reliability and durability of the whole demolding mechanism.

[0013] Further, the stroke sub-member is a round rod.

[0014] By means of the above further arrangement, the stroke sub-member in the shape of a round rod can smoothly slide in the stroke slot, reduces the friction resistance, and improves the demolding efficiency.

[0015] Further, the movable insert includes an insert block and a pair of sliding rods, the sliding member is provided with a sliding groove on both sides, the pair of sliding rods slide into the corresponding sliding grooves and abut against the downward inclined sliding grooves, the sliding rods are provided with stroke slots, the corresponding sides of the sliding grooves and the stroke slots are provided with stroke sub-members, and the sliding rods slide up and down in cooperation with the main seat.

[0016] With the further arrangement, the movable insert is stably up and down sliding by the cooperation of the slide bar and the sliding groove of the sliding member.

[0017] With the further arrangement, the sliding member is provided with a through hole, and the pair of sliding grooves are each provided with a clamping groove, and the two clamping grooves are respectively communicated with the through hole to form a hole channel, and the row position sub-member is inserted into the hole channel and has two sub-ends, and the two sub-ends are located in the corresponding clamping groove and row position groove.

[0018] With the further arrangement, the communication design of the through hole and the clamping groove provides convenience for the installation and positioning of the row position sub-member.

[0019] With the further arrangement, the sliding member includes an upper insert block part and a lower insert block part, and the sliding groove is located between the upper insert block part and the lower insert block part, the lower insert block part is protruded forward relative to the upper insert block part to form an insert head, and the insert head and the front end of the insert block each have a shaped surface.

[0020] With the further arrangement, the sliding member is divided into the upper insert block part and the lower insert block part, and the sliding groove is ingeniously arranged between the upper insert block part and the lower insert block part, and the insert head formed by the protrusion of the lower insert block part corresponds to the shaped surface of the front end of the insert block, which makes the product forming more accurate during the demolding process and effectively avoids product deformation or damage.

[0021] Meanwhile, the mouth hole insert pin and the reverse buckle forming cavity arranged on the upper insert block part further improve the processing efficiency and product quality of the mold, and the reverse buckle forming cavity located at the front end of the upper insert block part cooperates with the structure that the insert head supports the insert block below to ensure the stability and integrity of the product during the demolding process.

[0022] With the further arrangement, the movable insert is stably up and down sliding by the cooperation of the slide bar and the sliding groove of the sliding member.

[0023] With the further setting, the sliding of the guide head in the guide groove ensures the accurate movement of the movable insert. The guide groove is divided into a first groove section in the up-down direction and a second groove section in the front-back direction. This segmented design meets the movement requirements in different directions. When the sliding member slides forward and backward relative to the movable insert, the guide head slides up and down in the first groove section, ensuring the stable movement of the movable insert in the vertical direction. When the movable insert slides forward and backward in linkage with the sliding member, the guide head slides forward and backward in the second groove section, realizing the accurate positioning of the movable insert in the horizontal direction.

[0024] The further setting of the present application is that the inclined guide is an inclined guide column that is inclined backward, the sliding member is provided with an inclined guide groove that is inclined backward, and the inclined guide column is inserted into the inclined guide groove to drive the sliding member to slide forward and backward.

[0025] With the further setting, the design of the inclined guide column that is inclined backward enables the inclined guide column to smoothly slide up and down along the inclined guide groove during the demolding process, thereby driving the forward and backward movement of the sliding member.

[0026] The further setting of the present application is that the sliding member comprises a driving seat and an insert seat mounted on the driving seat, the driving seat is in forward and backward sliding cooperation with the main seat, the insert seat comprises an upper insert block part and a lower insert block part, the sliding groove and the row position sub-member are arranged on the insert seat, the insert seat is provided with a T-shaped head at the rear end, the driving seat is provided with a T-shaped groove at the front end, the T-shaped head and the T-shaped groove are in up-down sliding cooperation, and the rear end surface of the T-shaped head is provided with an assembly hole for the insertion of a nozzle hole insert pin.

[0027] With the further setting, the forward and backward sliding cooperation design of the driving seat and the main seat enables the sliding member to move more flexibly during the demolding process. The upper insert block part and the lower insert block part arranged on the insert seat are used to adapt to the product demolding requirements. The arrangement of the sliding groove and the row position sub-member further ensures the stability and accuracy of the insert seat during the movement. The up-down sliding cooperation design of the T-shaped head and the T-shaped groove enables the insert seat to slide and disassemble in the vertical direction and to be connected and positioned in the front-back direction. Meanwhile, the assembly hole arranged on the rear end surface of the T-shaped head provides convenience for the insertion of the insert pin. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 The product structure diagram is the background technology of the present application.

[0029] Figure 2 The structure diagram is a specific embodiment of the present application.

[0030] Figure 3 The sliding member structure diagram is a specific embodiment of the present application.

[0031] Figure 4 The insert seat structure diagram is a specific embodiment of the present application.

[0032] Figure 5 The structure diagram of the insert of the embodiment of the present application;

[0033] Figure 6 The structure diagram of the insert of the embodiment of the present application;

[0034] Figure 7 The structure diagram of the insert of the embodiment of the present application;

[0035] Figure 8 The structure diagram of the insert of the embodiment of the present application;

[0036] Figure 9 The structure diagram of the insert of the embodiment of the present application;

[0037] Figure 10 The state diagram of the product during injection molding of the embodiment of the present application;

[0038] Figure 11 The state diagram of the product during initial demolding of the embodiment of the present application;

[0039] Figure 12 The state diagram of the product during complete demolding of the embodiment of the present application.

[0040] In the figure: inclined guide 1, main seat 2, sliding piece 3, movable insert 4, stroke mechanism 5, stroke sub-piece 51, sub-piece 511, stroke slot 52, limit slot surface 521, clamping slot 301, sliding slot 302, through hole 303, inclined guide slot 34, insert block 41, sliding rod 42, guide head 43, guide slot 21, first slot section 211, second slot section 212, upper insert block part 31, nozzle hole insert pin 311, reverse buckle forming cavity 312, lower insert block part 32, insert head 321, driving seat 35, T-shaped slot 351, insert seat 36, T-shaped head 361, assembly hole 362, forming surface A. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0042] As shown in Figures 2-12 FIG. 1, a demolding mechanism for a reverse buckle structure product of the present application comprises an inclined guide 1 installed on an upper die and a main seat 2 installed on a lower die, wherein the main seat 2 is provided with a sliding piece 3 and a movable insert 4.

[0043] The sliding piece 3 is assembled in the main seat 2 along the front and back direction and is in inclined contact with the inclined guide 1, and the two can be slidably connected through the inclined groove and the inclined block, so that when the inclined guide 1 moves up and down, the sliding piece 3 can be driven to slide forward and backward.

[0044] The movable insert 4 is assembled in the main seat 2 along the up and down direction and is in inclined contact with the sliding piece 3, and the bottom surface of the movable insert 4 is an inclined surface, the sliding piece 3 is in inclined contact with the inclined surface, so that when the sliding piece 3 moves forward relative to the movable insert 4, the movable insert 4 can be pushed up, and when the sliding piece 3 moves backward relative to the movable insert 4, the movable insert 4 can move down to get out of the inverted buckle of the product, and then the movable insert 4 moves backward through the stroke mechanism 5 and the sliding piece 3.

[0045] Specifically, the stroke mechanism 5 includes a row position piece 51 and a row position groove 52 arranged on the sliding piece and the movable insert respectively, the row position piece 51 is arranged in the row position groove 52 and can move forward and backward, when the row position piece 51 moves backward with the sliding piece 3 to the limit groove surface 521 of the row position groove 52, the movable insert 4 is driven to move backward. When the row position piece 51 is arranged on the sliding piece and the row position groove 52 is arranged on the movable insert, the rear end wall of the row position groove 52 is provided with the limit groove surface 521, or the row position piece 51 is arranged on the movable insert and the row position groove 52 is arranged on the sliding piece.

[0046] Specifically, the sliding piece 3 is provided with a clamping groove 301, the row position piece 51 is fitted into the clamping groove 301 and partially exposed from the clamping groove 301 and located in the row position groove 52. The row position piece 51 is a round rod. The movable insert 4 includes an insert block 41 and a pair of slide rods 42 arranged integrally, the sliding piece 3 is provided with a sliding groove 302 on both sides, a pair of slide rods 42 are slid into the corresponding sliding groove 302 and are in inclined contact with the sliding groove 302 downward, the sliding groove 302 is an inclined groove and the slide rod is an inclined rod, the slide rod 42 is provided with the row position groove 52, the corresponding side of the sliding groove 302 and the row position groove is provided with the row position piece 51, and the slide rod 42 is slidably connected with the main seat 2. The row position piece 51 can be arranged between the upper wall or the lower wall of the sliding groove and the slide rod 42. The sliding piece 3 is provided with a through hole 303, a pair of sliding grooves 302 are provided with clamping grooves 301, and the clamping grooves 301 on both sides are respectively communicated with the through hole 303 in the middle to form a channel, the row position piece 51 is fitted into the channel and both ends are sub parts 511, and both sub parts 511 are located in the corresponding clamping groove 301 and the row position groove 52. Of course, the row position piece can be arranged integrally on the sliding piece.

[0047] Specifically, the sliding member 3 comprises an upper insert block part 31 and a lower insert block part 32 which are integrally arranged, a sliding groove 302 is located between the upper insert block part and the lower insert block part, the lower insert block part 32 is formed with an insert head 321 which is protruded forward relative to the upper insert block part, the insert head 321 and the insert block 41 are both provided with a shaped surface A at the front end, the upper insert block part 31 is provided with a nozzle hole insert pin 311 and a reverse buckle shaped cavity 312, the nozzle hole insert pin is used for forming the oil outlet hole of the oil nozzle, the reverse buckle shaped cavity 312 is used for forming the reverse buckle of the product, and the reverse buckle shaped cavity 312 is located at the front end of the upper insert block part 31, and when processing, the insert head 321 supports the insert block 41 below, and the insert block 41 abuts against the front end surface of the upper insert block part 31.

[0048] Specifically, the sliding member 3 comprises a driving seat 35 and an insert seat 36 which is arranged on the driving seat, the insert seat 36 and the driving seat 35 can be integrally arranged, the driving seat 35 is slidably connected with the main seat 2 in the front-rear direction, and the sliding connection is specifically realized through a guide rail guide groove; the insert seat 36 comprises an upper insert block part 31 and a lower insert block part 32, the sliding groove 302 and the row position member 51 are arranged on the insert seat 36; the insert seat 36 is integrally provided with a T-shaped head 361 at the rear end, the driving seat 35 is provided with a T-shaped groove 351 at the front end, the T-shaped head and the T-shaped groove are slidably connected in the up-down direction, the T-shaped head 361 is provided with an assembly hole 362 at the rear end surface for inserting the nozzle hole insert pin 311, the movable insert part 4 is provided with guide heads 43 on both sides, the guide heads 43 are integrally arranged on the sliding rod, the main seat 2 is provided with a guide groove 21, the guide heads 43 are slidably arranged in the guide groove 21, the guide groove 21 comprises a first groove section 211 in the up-down direction and a second groove section 212 in the front-rear direction, the first groove section 211 is connected with the front end of the second groove section 212, and when the sliding member 3 is slid forward and backward relative to the movable insert part 4, the guide heads 43 of the movable insert part 4 are slid up and down on the first groove section 211; when the movable insert part 4 is slid forward and backward in linkage with the sliding member 3, the guide heads 43 of the movable insert part 4 are slid forward and backward on the second groove section 212. The inclined guide member 1 is an inclined guide column which is inclined backward, the sliding member 3 is provided with an inclined guide groove 34 which is inclined backward, the inclined guide groove 34 is arranged on the driving seat 35, and the inclined guide column is slidably inserted into the inclined guide groove 34 to drive the sliding member 3 to slide forward and backward.

[0049] The working principle of the present application is explained as follows:

[0050] 1. The mold closing state: the inclined guide column is inserted into the inclined guide groove 34 of the sliding member 3, and drives the sliding member 3 to move forward to the limit position, the movable insert part 4 is pushed to the upper limit by being abutted and inclined downward relative to the sliding member 3, the insert block 41 of the movable insert part 4 is abutted against the insert head 321 and the upper insert block part 31 of the sliding member 3 to form a product forming cavity.

[0051] 2. Demoulding state: at the beginning of mould opening, the upper mould drives the inclined guide pillar to rise, the inclined guide pillar drives the sliding member 3 to slide backward through the inclined guide groove 34, at this time, the slide rod 42 of the movable insert 4 slides downward along the slide groove 302 of the sliding member 3, under the restriction of the guide groove first groove section 211 of the main seat 2, the movable insert 4 moves downward as a whole, thereby separating from the product reverse buckle, and at the same time, the row position sub-member 51 slides backward in the row position groove 52 of the movable insert 4;

[0052] When the movable insert 4 moves downward to completely separate from the product reverse buckle, the row position sub-member 51 abuts against the limiting groove surface 521 of the row position groove 52, the backward moving force of the subsequent sliding member 3 is transmitted to the movable insert 4 through the row position sub-member 51, the synchronous backward movement of the two is realized, the guide head 43 of the movable insert 4 enters the guide groove second groove section 212, and the sliding member 3 moves synchronously along the front-back direction, and finally the movable insert 4 completely separates from the product, thereby completing demoulding. The sequence of “avoiding reverse buckle first and then separating as a whole” is irreversible.

[0053] The mechanism realizes automatic demoulding through mechanical linkage, is stable in structure, and is suitable for production of various injection-moulded products with reverse buckles, and is especially suitable for batch manufacturing of precision structural parts such as oil nozzles.

[0054] It should be noted that all directional indications (such as up, down, front, back, etc.) in the description of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.

[0055] In addition, the description such as “first”, “second” and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. In the description of the present application, the meaning of “several” is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0056] In the description of the present application, unless otherwise specifically defined and limited, the terms “mounting”, “connection”, “coupling”, “connection”, “fixing” should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integral; it can be directly connected, or indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

Claims

1. A demolding mechanism for products with an inverted structure, characterized in that: It includes a slanted guide (1) installed on the upper mold and a main seat (2) installed on the lower mold, wherein the main seat (2) is provided with a sliding member (3) and a movable insert (4); The sliding member (3) is slidably assembled on the main seat (2) in the front-back direction and is inclined to abut against the inclined guide member (1) in a rearward direction, so that when the inclined guide member (1) moves up and down, it can drive the sliding member (3) to slide back and forth. The movable insert (4) slides up and down and is assembled on the main seat (2), and is inclined downward to abut against the sliding member (3), so that when the sliding member (3) moves forward relative to the movable insert (4), it can push the movable insert (4) upward; when the sliding member (3) moves backward relative to the movable insert (4), the movable insert (4) can move downward to disengage the product's buckle, and then the movable insert (4) moves backward in linkage with the sliding member (3) through the stroke mechanism (5); The travel mechanism (5) includes a travel position sub-component (51) and a travel position groove (52) respectively provided on the sliding member and the movable insert. The travel position sub-component (51) is movably disposed in the travel position groove (52). When the travel position sub-component (51) moves backward with the sliding member (3) to abut against the limiting groove surface (521) of the travel position groove (52), it drives the movable insert (4) to move backward in linkage. The movable insert (4) includes an insert (41) and a pair of slide rods (42). The slide member (3) has a slide groove (302) on both sides. The pair of slide rods (42) slide into the corresponding slide groove (302) and abut against the slide groove (302) at an angle downward. The slide rod (42) has a sliding groove (52). The slide groove (302) and the corresponding side of the sliding groove have a sliding sub-part (51). The slide rod (42) slides up and down with the main seat (2). The sliding member (3) is provided with a through hole (303), and a pair of sliding grooves (302) are provided with a locking groove (301). The locking grooves (301) on both sides are connected to the through hole (303) in the middle to form a channel. The sliding sub-member (51) is inserted into the channel and has two sub-parts (511) at both ends. Both sub-parts (511) are located in the corresponding locking groove (301) and sliding groove (52). The movable insert (4) has guide heads (43) on both sides, and the main seat (2) has a guide groove (21). The guide head (43) slides in the guide groove (21). The guide groove (21) includes a first groove section (211) in the vertical direction and a second groove section (212) in the front-back direction. The first groove section (211) is connected to the front end of the second groove section (212). When the sliding member (3) slides back and forth relative to the movable insert (4), the guide head (43) of the movable insert slides up and down in the first groove section (211). When the movable insert (4) and the sliding member (3) slide back and forth in linkage, the guide head (43) of the movable insert slides back and forth in the second groove section (212).

2. The demolding mechanism according to claim 1, characterized in that: The sliding member (3) is provided with a slot (301), and the sliding sub-member (51) is adapted to pass through the slot (301), and part of it is exposed outside the slot (301) and located in the sliding slot (52).

3. The demolding mechanism according to claim 2, characterized in that: The row position component (51) is a round rod.

4. The demolding mechanism according to claim 1, characterized in that: The sliding member (3) includes an upper insert (31) and a lower insert (32). A groove (302) is located between the upper insert and the lower insert. The lower insert (32) protrudes forward relative to the upper insert to form an insert head (321). The insert head (321) and the insert (41) both have a forming surface (A) at their front ends. The upper insert (31) is provided with a nozzle insert (311) and an undercut forming cavity (312). The undercut forming cavity (312) is located at the front end of the upper insert (31). During processing, the insert head (321) supports the lower part of the insert (41), and the insert (41) abuts against the front end surface of the upper insert (31).

5. The demolding mechanism according to claim 1, 2, 3, or 4, characterized in that: The inclined guide (1) is a backward inclined guide post, and the sliding member (3) is provided with a backward inclined guide groove (34). The inclined guide post is slidably inserted into the inclined guide groove (34) to drive the sliding member (3) to slide back and forth.

6. The demolding mechanism according to claim 4, characterized in that: The sliding member (3) includes a drive seat (35) and a mounting base (36) mounted on the drive seat. The drive seat (35) slides back and forth with the main seat (2). The mounting base (36) includes an upper mounting block (31) and a lower mounting block (32). The sliding groove (302) and the sliding sub-part (51) are provided on the mounting base (36). The mounting base (36) has a T-shaped head (361) at the rear end and a T-shaped groove (351) at the front end of the drive seat (35). The T-shaped head and the T-shaped groove slide up and down. The rear end face of the T-shaped head (361) is provided with an assembly hole (362) for inserting a nozzle pin (311).

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