Buckling machine mechanism for controlling mold opening and closing actions of mold

Abstract

The utility model discloses a buckling machine mechanism for controlling mold opening and closing actions, which relates to the field of molds and comprises a front mold plate, a rear mold plate, a supporting plate and a buckling machine mechanism, the buckling machine mechanism comprises a connecting rod, a cover plate, a fixed block, a first elastic block and a second elastic block, the upper end of the connecting rod is arranged on the front mold plate, the fixed block is arranged on the rear mold plate, and the lower end of the cover plate is arranged on the supporting plate. The end face, close to the rear mold plate, of the cover plate is provided with a guide groove, the lower end of the connecting rod is slidably arranged in the guide groove, the first elastic block is slidably arranged at the upper end of the fixing block, the second elastic block is slidably arranged at the lower end of the fixing block, and the connecting rod is provided with a first buckle structure and a first unlocking structure. The cover plate is sequentially provided with a second buckle structure and a second unlocking structure, and the second buckle structure is connected with the upper end of the second elastic block in a buckled mode. In the same forming process, the mold opening sequence of more than two plates can be controlled, and the problem of a mold sticking structure of a product is solved.

Description

Technical Field

[0001] The utility model relates to the field of molds, in particular to a locking mechanism for controlling the opening and closing actions of a mold. Background Art

[0002] Common injection molds generally include an upper fixing plate, a stripping plate, a front template, a rear template, a support plate, an upper ejector plate, a lower ejector plate, an ejector pin and other accessory structures.

[0003] For some injection molded parts with longer structures, it is necessary to use a deeper mold core to process the injection molded parts, which results in a thicker rear mold plate and the problem of the product sticking to the rear mold when the mold is opened. When opening and closing the mold, in order to prevent the product from sticking to the rear mold when the mold is opened, it is necessary to control the sequence of the stripper plate, front mold plate, rear mold plate and support plate. The buckle structure of the traditional injection mold cannot control the mold opening sequence of more than two panels. The sequence of each panel cannot be effectively controlled, and it is very easy to make mistakes in the mold opening sequence, resulting in sticking or scratching the surface of the injection molded part.

[0004] Therefore, a latch mechanism for controlling the opening and closing of the mold is provided to solve the problem of the opening sequence of the panels when the mold is opened, and to ensure that the molds are opened in sequence. Utility Model Content

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a locking mechanism for controlling the opening and closing actions of the mold, comprising: a front template, a rear template, a pad, a support plate and a locking mechanism, the rear template is fixedly connected to the pad, the locking mechanism comprises a connecting rod, a cover plate, a fixing block, a first spring block and a second spring block, the upper end of the connecting rod is arranged on the front template, the fixing block is arranged on the rear template, the lower end of the cover plate is arranged on the support plate, the end surface of the cover plate close to the rear template is provided with a guide groove, the lower end of the connecting rod is slidably arranged in the guide groove, the first spring block is slidably arranged on the upper end of the fixing block, the second spring block is slidably arranged on the lower end of the fixing block, the sliding directions of the first spring block and the second spring block are both perpendicular to the mold opening direction, the connecting rod is provided with a first buckle structure and a first unlocking structure, the first buckle structure is buckled and connected to the lower end of the first spring block, the cover plate is sequentially provided with a second buckle structure and a second unlocking structure, and the second buckle structure is buckled and connected to the upper end of the second spring block;

[0006] The first unlocking structure applies a force to the second spring block in a direction toward the rear template to separate the second buckle structure from the second spring block, and the second unlocking structure applies a force to the first spring block in a direction toward the rear template to separate the first buckle structure from the first spring block;

[0007] The connecting rod is provided with a locked state and an unlocked state capable of separating the second snap-in structure from the second spring block, and the cover plate is provided with a locked state and an unlocked state capable of separating the first snap-in structure from the first spring block; when the cover plate switches from the locked state to the unlocked state, the first snap-in structure conflicts with the first spring block, and the connecting rod switches from the unlocked state to the locked state.

[0008] Preferably, the connecting rod is provided with a first groove and a second groove in sequence along the direction from the front template to the supporting plate, the first buckle structure is arranged at the lower end of the first groove, and the first unlocking structure is symmetrically arranged in the second groove. The length of the first groove is greater than the length of the second groove. The first groove cooperates with the second groove to limit the displacement distance.

[0009] Preferably, the cover plate is provided with a third groove and a fourth groove in sequence along the direction from the front template to the support plate, the second unlocking structure is provided at the upper end of the third groove, and the second buckle structure is symmetrically provided at the upper and lower ends of the fourth groove. The length of the third groove is greater than the length of the first groove, greater than the length of the second groove, and the length of the third groove is greater than the length of the fourth groove. The third groove cooperates with the fourth groove to limit the displacement distance.

[0010] Preferably, the second unlocking structure is a plane, the second unlocking structure is obliquely intersected with the mold opening direction, and the upper end surface of the first spring block is provided with a first inclined surface parallel to the second unlocking structure. The second unlocking structure cooperates with the inclined surface of the first spring block, and the second unlocking structure can squeeze the first spring block during movement.

[0011] Preferably, the first snap-fit ​​structure is a plane, the first snap-fit ​​structure intersects the mold opening direction perpendicularly, and the lower end surface of the first spring block is provided with a first plane parallel to the first snap-fit ​​structure.

[0012] Preferably, the first unlocking structure is a plane, the first unlocking structure is obliquely intersected with the mold opening direction, and the middle of the upper end face and the lower end face of the second spring block are both provided with a second inclined surface parallel to the first unlocking structure. The first unlocking structure cooperates with the inclined surface of the second spring block, and the first unlocking structure can squeeze the second spring block during movement.

[0013] Preferably, the second snap-fit ​​structure is a plane, the second snap-fit ​​structure intersects the mold opening direction perpendicularly, and both ends of the upper end surface and the lower end surface of the second spring block are provided with a second plane parallel to the second snap-fit ​​structure.

[0014] Preferably, an elastic body is further included, and the upper and lower ends of the fixed block are respectively provided with a first slide groove and a second slide groove, the first elastic block is slidably arranged in the first slide groove, the elastic body is respectively penetrated and arranged in the first slide groove and the second slide groove, and the elastic body is clamped between the rear template and the first elastic block, and between the rear template and the second elastic block. The elastic body is preferably a spring, which provides elastic force for the first elastic block and the second elastic block to reset.

[0015] Preferably, it also includes four pressing blocks, the second spring block is slidably set in the second sliding groove, both ends of the end faces of the first spring block and the second spring block away from the rear template are provided with step grooves, the four pressing blocks are symmetrically arranged on the fixed block, and the two ends of each pressing block are respectively arranged on the fixed block and the step groove.

[0016] Preferably, it further comprises a first connecting block and a second connecting block, the upper end of the connecting rod is fixedly arranged on the front template through the first connecting block, and the lower end of the cover plate is fixedly arranged on the support plate through the second connecting block.

[0017] Preferably, the first connecting block, the fixing block and the second connecting block all include positioning blocks, the front template, the rear template and the supporting plate are all provided with positioning grooves, and the positioning blocks are arranged in the positioning grooves in a one-to-one correspondence.

[0018] The working principle of the utility model is that when in the mold closing state, the cover plate and the second elastic block are in a locked state, and the connecting rod is in an unlocked state.

[0019] As the mold opening action proceeds, the connecting rod will move upward relative to the cover plate. The first buckle structure of the connecting rod moves in the direction of the first plane of the first spring block, and the first unlocking structure of the connecting rod moves in the direction of the second inclined surface of the second spring block. The first plane is located on the moving track of the first buckle structure, and the first buckle structure will be blocked by the first plane, thereby causing the connecting rod to stop moving and enter a locked state. The second inclined surface is located on the moving track of the first unlocking structure, and the two inclined surfaces cooperate. The first unlocking structure will apply a force to the second inclined surface, causing the second spring block to move in the direction away from the connecting rod and the cover plate, and the cover plate will enter an unlocked state. The rear template is hooked by the first buckle structure of the connecting rod, the front template and the rear template will remain stationary, and the support plate will open the mold.

[0020] As the cover moves, the first inclined surface contacts the second unlocking structure. Due to the cooperation between the two inclined surfaces, the second unlocking structure will exert a force on the first inclined surface, causing the first spring block to move away from the connecting rod and the cover. At this time, the connecting rod enters the unlocked state, and the front template and the rear template enter the unlocked state for mold opening.

[0021] When opening the mold, the support plate and the rear template remain in mold closing, the connecting rod and the front template will move a short distance first, and as the connecting rod moves, the cover plate and the second spring block will switch to the unlocked state, the cover plate and the first spring block will switch to the locked state, and the front template and the rear template remain stationary. The cover plate and the support plate move away from the rear template to open the mold. As the cover plate moves, the connecting rod and the first spring block will switch to the unlocked state again, and the front template and the rear template will be completely opened.

[0022] The beneficial effects of the utility model are as follows: the connecting rod moves to the second spring block limit position to press the second spring block, disconnect the cover plate from the second spring block, open the mold support plate and the rear mold plate for the first time, and the cover plate continues to open the mold and moves to the first spring block, releasing the connection between the connecting rod and the first spring block. The rear mold plate and the front mold plate are opened for the second time, completing the entire mold opening action of the buckle machine.

[0023] It can control the mold opening sequence of more than two panels in the same molding process to solve the problem of product mold sticking. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings further illustrate the present invention, but the embodiments in the accompanying drawings do not constitute any limitation to the present invention.

[0025] Figure 1 A schematic diagram of the structure of a mold provided by an embodiment of the utility model;

[0026] Figure 2 A schematic diagram of the structure of a trigger mechanism provided by an embodiment of the utility model;

[0027] Figure 3 The explosion of the trigger mechanism provided by an embodiment of the utility model Figure 1 ;

[0028] Figure 4 The explosion of the trigger mechanism provided by an embodiment of the utility model Figure 2 ;

[0029] Figure 5 A cross-sectional view of a trigger mechanism provided in one embodiment of the utility model Figure 1 ;

[0030] Figure 6 A cross-sectional view of a trigger mechanism provided in one embodiment of the utility model Figure 2 .

[0031] Figure numerals: 1: front template; 2: rear template; 3: pad; 4: support plate; 5: connecting rod; 6: cover plate; 7: fixing block; 8: first spring block; 9: second spring block; 10: first buckle structure; 11: first unlocking structure; 12: second buckle structure; 13: second unlocking structure. DETAILED DESCRIPTION

[0032] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0033] It should be noted that in the present invention, when an element is referred to as being "fixed to" or "set on" another element, unless otherwise stated, it may be directly on the other element or there may be a central element at the same time. "Far" and "near" refer to far and near relative to a certain component. Directional words such as "upper" and "upper end" usually refer to the position of the mold away from the mold foot (i.e., the position of the positioning ring for injecting molten material). Directional words such as "lower" and "lower end" usually refer to the position of the mold foot.

[0034] In one embodiment, Figure 1-Figure 6 As shown in, the present embodiment provides a locking mechanism for controlling the opening and closing actions of a mold, comprising: a front template 1, a rear template 2, a pad 3, a support plate 4 and a locking mechanism, wherein the front template 1, the rear template 2, the pad 3 and the support plate 4 are arranged in sequence, the rear template 2 is fixedly connected to the pad 3, the locking mechanism comprises a connecting rod 5, a cover plate 6, a fixing block 7, a first spring block 8 and a second spring block 9, the upper end of the connecting rod 5 is arranged on the front template 1, the fixing block 7 is arranged on the rear template 2, the lower end of the cover plate 6 is arranged on the support plate 4, and the cover plate 6 is close to the end surface of the rear template 2 A guide groove is provided, the lower end of the connecting rod 5 is slidably arranged in the guide groove, the first spring block 8 is slidably arranged on the upper end of the fixed block 7, the second spring block 9 is slidably arranged on the lower end of the fixed block 7, the sliding directions of the first spring block 8 and the second spring block 9 are perpendicular to the mold opening direction, the connecting rod 5 is provided with a first buckle structure 10 and a first unlocking structure 11, the first buckle structure 10 is buckled and connected with the lower end of the first spring block 8, the cover plate 6 is sequentially provided with a second buckle structure 12 and a second unlocking structure 13, the second buckle structure 12 is buckled and connected with the upper end of the second spring block 9;

[0035] The first unlocking structure 11 applies a force to the second spring block 9 in a direction toward the rear template 2 to separate the second buckle structure 12 from the second spring block 9, and the second unlocking structure 13 applies a force to the first spring block 8 in a direction toward the rear template 2 to separate the first buckle structure 10 from the first spring block 8;

[0036] The connecting rod 5 is provided with a locked state and an unlocked state capable of separating the second snap-fit ​​structure 12 from the second spring block 9, and the cover plate 6 is provided with a locked state and an unlocked state capable of separating the first snap-fit ​​structure 10 from the first spring block 8; when the cover plate 6 is switched from the locked state to the unlocked state, the first snap-fit ​​structure 10 conflicts with the first spring block 8, and the connecting rod 5 is switched from the unlocked state to the locked state.

[0037] The connecting rod 5 is provided with a first groove and a second groove in sequence along the direction from the front template 1 to the supporting plate 4. The first buckle structure 10 is arranged at the lower end of the first groove, and the first unlocking structure 11 is symmetrically arranged in the second groove. The length of the first groove is greater than the length of the second groove. The first groove cooperates with the second groove to limit the displacement distance.

[0038] like Figures 3 to 6 As shown, the cover plate 6 is provided with a third groove and a fourth groove in sequence along the direction from the front template 1 to the support plate 4, the second unlocking structure 13 is provided at the upper end of the third groove, and the second buckle structure 12 is symmetrically provided at the upper and lower ends of the fourth groove. The length of the third groove is greater than that of the first groove, greater than that of the second groove, and the length of the third groove is greater than that of the fourth groove. The third groove cooperates with the fourth groove to limit the displacement distance.

[0039] like Figures 3 to 6 As shown, the second unlocking structure 13 is a plane, the second unlocking structure 13 is obliquely intersected with the mold opening direction, and the upper end surface of the first spring block 8 is provided with a first inclined surface parallel to the second unlocking structure 13. The second unlocking structure 13 cooperates with the inclined surface of the first spring block 8, and the second unlocking structure 13 can squeeze the first spring block 8 during the movement.

[0040] like Figures 3 to 6 As shown, the first buckle structure 10 is a plane, the first buckle structure 10 intersects the mold opening direction perpendicularly, and the lower end surface of the first spring block 8 is provided with a first plane parallel to the first buckle structure 10 .

[0041] like Figures 3 to 6 As shown, the first unlocking structure 11 is a plane, the first unlocking structure 11 is obliquely intersected with the mold opening direction, and the middle of the upper end surface and the lower end surface of the second spring block 9 are both provided with a second inclined surface parallel to the first unlocking structure 11. The first unlocking structure 11 cooperates with the inclined surface of the second spring block 9, and the first unlocking structure 11 can squeeze the second spring block 9 during the movement.

[0042] like Figures 3 to 6 As shown, the second snap-fit ​​structure 12 is a plane, the second snap-fit ​​structure 12 intersects the mold opening direction perpendicularly, and both ends of the upper end surface and the lower end surface of the second spring block 9 are provided with a second plane parallel to the second snap-fit ​​structure 12 .

[0043] like Figures 2 to 4 As shown, it also includes an elastic body, the upper and lower ends of the fixed block 7 are respectively provided with a first slide groove and a second slide groove, the first elastic block 8 is slidably arranged in the first slide groove, the elastic body is respectively penetrated and arranged in the first slide groove and the second slide groove, and the elastic body is sandwiched between the rear template 2 and the first elastic block 8, and between the rear template 2 and the second elastic block 9. The elastic body is preferably a spring, which provides elastic force for the first elastic block 8 and the second elastic block 9 to reset.

[0044] It also includes four pressing blocks, the second spring block 9 is slidably set in the second sliding groove, and the first spring block 8 and the second spring block 9 are provided with step grooves at both ends of the end surface away from the rear template 2. The four pressing blocks are symmetrically arranged on the fixed block 7, and the two ends of each pressing block are respectively arranged on the fixed block 7 and the step groove.

[0045] It also includes a first connecting block and a second connecting block. The upper end of the connecting rod 5 is fixed to the front template 1 through the first connecting block, and the lower end of the cover plate 6 is fixed to the support plate 4 through the second connecting block.

[0046] The first connecting block, the fixing block 7 and the second connecting block all include positioning blocks, and the front template 1, the rear template 2 and the supporting plate 4 are all provided with positioning grooves, and the positioning blocks are arranged in the positioning grooves in a one-to-one correspondence.

[0047] Compared with the previous embodiment, the first embodiment comprises: a front template 1, a rear template 2, a pad 3, a support plate 4 and a locking mechanism, wherein the front template 1, the rear template 2, the pad 3 and the support plate 4 are arranged in sequence, the fixing block 7 is arranged on the rear template 2, and the lower end of the cover plate 6 is fixedly arranged on the pad 3. Compared with the previous embodiment, when opening the mold, the connecting rod 5 moves to the limit position of the second spring block 9 to press the second spring block 9, disconnecting the connection between the cover plate 6 and the second spring block 9, and the pad 3 and the rear template 2 are opened for the first time, and the cover plate 6 continues the mold opening action and moves to the limit position of the first spring block 8 to press the first spring block 8, releasing the connection between the connecting rod 5 and the first spring block 8. The rear template 2 and the front template 1 are opened for the second time, completing the entire mold opening action of the locking machine.

[0048] The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, which should be considered as the scope of this specification.

Claims

1. A locking mechanism for controlling the opening and closing of a mold, characterized in that: include: A front template, a rear template, a pad, a support plate and a locking mechanism, wherein the locking mechanism comprises a connecting rod, a cover plate, a fixed block, a first spring block and a second spring block, wherein the upper end of the connecting rod is arranged on the front template, the fixed block is arranged on the rear template, the lower end of the cover plate is arranged on the support plate, the end surface of the cover plate close to the rear template is provided with a guide groove, the lower end of the connecting rod is slidably arranged in the guide groove, the first spring block is slidably arranged on the upper end of the fixed block, the second spring block is slidably arranged on the lower end of the fixed block, the sliding directions of the first spring block and the second spring block are both perpendicular to the mold opening direction, the connecting rod is provided with a first buckle structure and a first unlocking structure, the first buckle structure is buckled and connected with the lower end of the first spring block, the cover plate is sequentially provided with a second buckle structure and a second unlocking structure, and the second buckle structure is buckled and connected with the upper end of the second spring block; The first unlocking structure applies a force to the second spring block in a direction toward the rear template to separate the second buckle structure from the second spring block, and the second unlocking structure applies a force to the first spring block in a direction toward the rear template to separate the first buckle structure from the first spring block; The connecting rod is provided with a locked state and an unlocked state capable of separating the second buckle structure from the second elastic block, and the cover plate is provided with a locked state and an unlocked state capable of separating the first buckle structure from the first elastic block; When the cover plate switches from the locked state to the unlocked state, the first buckle structure abuts against the first elastic block, and the connecting rod switches from the unlocked state to the locked state.

2. The locking mechanism for controlling the opening and closing of the mold according to claim 1, characterized in that: The connecting rod is provided with a first groove and a second groove in sequence along the direction from the front template to the supporting plate, the first buckle structure is arranged at the lower end of the first groove, and the first unlocking structure is symmetrically arranged in the second groove.

3. The locking mechanism for controlling the opening and closing of the mold according to claim 1, characterized in that: The cover plate is provided with a third groove and a fourth groove in sequence along the direction from the front template to the support plate, the second unlocking structure is arranged at the upper end of the third groove, and the second buckle structure is symmetrically arranged at the upper and lower ends of the fourth groove.

4. The locking mechanism for controlling the opening and closing of the mold according to claim 1, characterized in that: The second unlocking structure is a plane, the second unlocking structure is obliquely intersected with the mold opening direction, and the upper end surface of the first spring block is provided with a first inclined surface parallel to the second unlocking structure.

5. The locking mechanism for controlling the opening and closing of the mold according to claim 1, characterized in that: The first buckle structure is a plane, the first buckle structure intersects the mold opening direction perpendicularly, and the lower end surface of the first spring block is provided with a first plane parallel to the first buckle structure.

6. The locking mechanism for controlling the opening and closing of the mold according to claim 1, characterized in that: The first unlocking structure is a plane, which is obliquely intersected with the mold opening direction, and the middle of the upper end surface and the lower end surface of the second spring block are both provided with a second inclined surface parallel to the first unlocking structure.

7. The locking mechanism for controlling the opening and closing of the mold according to claim 1, characterized in that: The second buckle structure is a plane, the second buckle structure intersects the mold opening direction perpendicularly, and both ends of the upper end surface and the lower end surface of the second spring block are provided with a second plane parallel to the second buckle structure.

8. The locking mechanism for controlling the opening and closing of the mold according to claim 1, characterized in that: It also includes an elastic body, and the upper and lower ends of the fixed block are respectively provided with a first sliding groove and a second sliding groove, the first spring block is slidably set in the first sliding groove, the elastic body is respectively penetrated through the first sliding groove and the second sliding groove, and the elastic body is clamped between the rear template and the first spring block, and between the rear template and the second spring block.

9. The locking mechanism for controlling the opening and closing of the mold according to claim 8, characterized in that: It also includes four pressing blocks, the second spring block is slidably set in the second sliding groove, both ends of the end faces of the first spring block and the second spring block away from the rear template are provided with step grooves, the four pressing blocks are symmetrically arranged on the fixed block, and the two ends of each pressing block are respectively arranged on the fixed block and the step groove.

10. The locking mechanism for controlling the opening and closing of the mold according to claim 1, characterized in that: It also includes a first connecting block and a second connecting block. The upper end of the connecting rod is fixedly arranged on the front template through the first connecting block, and the lower end of the cover plate is fixedly arranged on the support plate through the second connecting block.

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