Core pulling structure capable of synchronously pulling cores twice

Abstract

The utility model relates to a core-pulling structure capable of synchronously pulling cores twice, which comprises a sliding block main body sliding on a mould in the vertical direction, a driving mechanism for driving the sliding block main body to slide in the vertical direction is arranged on the sliding block main body, and a slope chamfer is arranged at the position of one side surface of the sliding block main body close to the bottom end. A first core pulling insert matched with the sliding block body to slide for core pulling is arranged at the bevel chamfer of the sliding block body, a first bent pin is arranged at the end, away from the bevel chamfer, of the first core pulling insert, and a second core pulling insert matched with the first bent pin to move for core pulling is arranged on the first bent pin. The driving mechanism drives the sliding block body to slide in the vertical direction, the sliding block body drives the first core-pulling insert to perform core pulling, the first core-pulling insert drives the second core-pulling insert to perform core pulling synchronously through the first bent pin, and in other words, one driving mechanism enables the structure to perform core pulling actions twice at different angles synchronously.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection mold field, more specifically, relate to a core pulling structure of twice core pulling synchronously. BACKGROUND

[0002] With the development of injection technology, the existing injection means can realize the injection molding of relatively complex products in a set of moulds, and some structures on the complex products need different angle core pulling to be molded, and oil cylinder needs to be used to drive the sliding block to slide to realize the core pulling of different angles.

[0003] But each angle core pulling needs to use the oil cylinder to carry out the core pulling, and multiple oil cylinders will increase the volume of the mould, and at the same time, the oil cylinder cannot be set on some positions of the mould due to the limitation of the mould structure, therefore, the prior art has defects and needs to be improved. UTILITY MODEL CONTENT

[0004] In view of the above defects of the prior art, a core pulling structure for twice core pulling synchronously is provided.

[0005] The utility model discloses a core pulling structure for twice core pulling synchronously, which comprises a sliding block main body that slides vertically on a mould, a driving mechanism arranged on the sliding block main body to drive the sliding block main body to slide vertically, an inclined chamfer arranged on one side of the sliding block main body close to the bottom end, a first core pulling insert arranged at the inclined chamfer of the sliding block main body to pull the core, a first bent pin arranged at one end of the first core pulling insert away from the inclined chamfer, and a second core pulling insert arranged on the first bent pin to pull the core.

[0006] Preferably, a limiting sliding connection mechanism is arranged between the inclined chamfer of the sliding block main body and the first core pulling insert, and the first core pulling insert is limited to slide on the inclined chamfer of the sliding block main body through the limiting sliding connection mechanism.

[0007] Preferably, the limiting sliding connection mechanism comprises a sliding rail, the sliding rail is arranged on the inclined chamfer of the sliding block main body, a insert sliding groove is arranged on the first core pulling insert, and the sliding rail is matched to slide in the insert sliding groove.

[0008] Preferably, the first core pulling insert comprises a connecting part and a core pulling part of a molded product, one end of the connecting part is an inclined surface structure that is fitted with the inclined chamfer, the insert sliding groove is arranged on the inclined surface structure of the connecting part, the core pulling part is arranged at one end of the connecting part away from the inclined surface structure, the first bent pin is also arranged at one end of the connecting part away from the inclined surface structure, and the first bent pin is located above the core pulling part.

[0009] As preferred, the slide rail is a dovetail type structure or a reverse T type structure, and the cross section of the insert slide groove corresponds to the dovetail type structure or the reverse T type structure.

[0010] As preferred, the driving mechanism comprises a second bent pin and an oil cylinder mounted on the mold, the slide block body is provided with a slide block inclined guide hole matched with the second bent pin, one end of the second bent pin is inserted into the slide block inclined guide hole, and an output shaft of the oil cylinder is connected to the end of the second bent pin away from the slide block inclined guide hole.

[0011] As preferred, the slide block body and the second bent pin are both provided with two, a connecting rod is connected to the output shaft of the oil cylinder, the two second bent pins are correspondingly arranged at opposite ends of the connecting rod, and the ends of the two second bent pins away from the connecting rod are correspondingly inserted into the slide block inclined guide holes of the two slide block bodies.

[0012] As preferred, the second core-pulling insert is provided with an insert inclined guide hole matched with the first bent pin, and one end of the first bent pin away from the first core-pulling insert is inserted into the insert inclined guide hole.

[0013] As preferred, a guide pressing block is arranged above the first core-pulling insert, a guide inclined surface parallel to the core-pulling direction of the first core-pulling insert is arranged at the bottom end of the guide pressing block, the first core-pulling insert abuts against the guide inclined surface of the guide pressing block, and a limiting pressing block in the core-pulling direction of the second core-pulling insert is arranged on the side of the second core-pulling insert away from the injection molding part.

[0014] As preferred, the slide block body is provided with a slide block slide groove on the side surface adjacent to the side surface where the bevel chamfer is located, and a sliding guide block fixed on the mold is slidably arranged in the slide block slide groove.

[0015] The driving mechanism drives the slide block body to vertically slide, the slide block body drives the first core-pulling insert to core-pulling, the first core-pulling insert drives the second core-pulling insert to synchronously core-pulling through the first bent pin, and one driving mechanism makes the structure synchronously core-pulling twice at different angles. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a whole structure schematic view of the embodiment of the utility model;

[0017] Figure 2 is a structure schematic view of the slide block body and the first core-pulling insert of the embodiment of the utility model;

[0018] Figure 3 is a structure schematic view of the first bent pin and the second core-pulling insert of the embodiment of the utility model.

[0019] Reference signs: 1 slider main body, 10 slider inclined guide hole, 11 slider sliding groove, 2 driving mechanism, 20 second bent pin, 21 oil cylinder, 22 connecting rod, 3 first core-pulling insert, 30 connecting part, 300 insert sliding groove, 31 core-pulling part, 4 first bent pin, 5 second core-pulling insert, 50 insert inclined guide hole, 6 sliding rail, 7 guide pressing block, 8 limiting pressing block, 9 sliding guide block. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the utility model embodiment clearer, the following will combine the technical scheme in the utility model embodiment to make clear and complete description, obviously, the described embodiment is part of the utility model, rather than all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the protection scope of the utility model, in addition, the direction mentioned in the utility model, such as " up ", " down ", " front ", " back ", " left ", " right ", " inside " and " outside " are only reference the direction of the attached drawing, the direction used is to better, more clearly illustrate and understand the utility model, and is not indicative or implied that the utility model must have the orientation, therefore, it can not be understood as the limitation of the utility model.

[0021] The utility model embodiment as shown in Figures 1 to 3 A core-pulling structure for synchronously pulling core twice, comprising a slider main body 1 sliding in vertical direction on a mold, a driving mechanism 2 being arranged on the slider main body 1 and driving the slider main body 1 to slide in vertical direction, a bevel chamfer being arranged on the side of the slider main body 1 close to the bottom end, the bevel chamfer being inclined from the right upper side to the left lower side, the bevel chamfer being located on the right side of the slider main body 1 close to the bottom end, a first core-pulling insert 3 being arranged on the slider main body 1 at the bevel chamfer and pulling core when the slider main body 1 slides, a first bent pin 4 being arranged on the end of the first core-pulling insert 3 away from the bevel chamfer, i.e. the first bent pin 4 being arranged on the right side wall of the first core-pulling insert 3, a second core-pulling insert 5 being arranged on the first bent pin 4 and pulling core when the first bent pin 4 moves, the first core-pulling insert 3 and the second core-pulling insert 5 being slid on the mold.

[0022] The driving mechanism 2 drives the slider main body 1 to slide in vertical direction, when the slider main body 1 moves upward, the slider main body 1 drives the first core-pulling insert 3 to slide to the left upper side, i.e. the first core-pulling insert 3 pulls core, the first core-pulling insert 3 drives the second core-pulling insert 5 to move to the right upper side synchronously through the first bent pin 4, i.e. the second core-pulling insert 5 pulls core, one driving mechanism 2 makes the structure to pull core twice synchronously at different angles.

[0023] Further improvement, as Figure 1 And Figure 2As shown in the figure, the slide block body 1 is provided with a limit sliding connection mechanism between the inclined chamfer and the first core-pulling insert 3, the first core-pulling insert 3 is limited to slide on the inclined chamfer of the slide block body 1 through the limit sliding connection mechanism, the limit sliding connection mechanism comprises a slide rail 6, the slide rail 6 is arranged on the inclined chamfer of the slide block body 1, the slide rail 6 extends from the lower left to the upper right, the first core-pulling insert 5 is provided with an insert sliding groove 300, the insert sliding groove 300 also extends from the lower left to the upper right, the slide rail 6 is matched and slid in the insert sliding groove 300, the slide rail 6 is a dovetail structure or a reverse T-shaped structure, the cross section of the insert sliding groove 300 corresponds to a dovetail structure or a reverse T-shaped structure, through the insert sliding groove 300 and the slide rail 6, when the slide block body 1 moves upward, the first core-pulling insert 3 is driven to move to the upper left.

[0024] Further improvement, as Figures 1 to 3 As shown in the figure, the first core-pulling insert 3 comprises a connecting part 30 and a core-pulling part 31 of the shaped product, one end of the connecting part 30 is an inclined surface structure matched with the inclined chamfer, the left end of the connecting part 30 is an inclined surface structure, the insert sliding groove 300 is arranged on the inclined surface structure of the connecting part 30, the core-pulling part 31 is arranged on the connecting part 30 away from the inclined surface structure, the first bent pin 4 is also arranged on the connecting part 30 away from the inclined surface structure, that is, the core-pulling part 31 and the first bent pin 4 are located on the right end surface of the connecting part 30, the first bent pin 4 is located above the core-pulling part 31, the inclined surface structure of the connecting part 30 matched with the inclined chamfer makes the right end surface of the connecting part 30 inclined to the lower left, the core-pulling part 31 and the first bent pin 4 are inclined to the lower right.

[0025] Further improvement, as Figure 1 And Figure 2 As shown in the figure, the driving mechanism 2 comprises a second bent pin 20 and an oil cylinder 21 installed on the mold, the slide block body 1 is provided with a slide block inclined guide hole 9 matched with the second bent pin 20, one end of the second bent pin 20 is inserted into the slide block inclined guide hole 9, the output shaft of the oil cylinder 21 is connected to the end of the second bent pin 20 away from the slide block inclined guide hole 9, the oil cylinder 21 drives the second bent pin 20 to move left and right, the slide block body 1 moves vertically through the second bent pin 20 and the slide block inclined guide hole 9.

[0026] Further improvement, as Figures 1 to 3As shown in the figure, the slider body 1 and the second bent pin 20 are both provided with two, the output shaft of the oil cylinder 21 is connected with a connecting rod 22, the two second bent pins 20 are correspondingly arranged at opposite ends of the connecting rod 22, and the ends of the two second bent pins 20 away from the connecting rod 22 are correspondingly inserted into the slider inclined guide hole 9 of the two slider bodies 1, the second core pulling insert 5 is provided with an insert inclined guide hole 50 matched with the first bent pin 4, and the end of the first bent pin 4 away from the first core pulling insert 3 is inserted into the insert inclined guide hole 50. The connecting rod 22 drives the two second bent pins 200 to move left and right at the same time, so that the number of oil cylinders 21 is reduced, thereby better controlling the size of the mold.

[0027] Further improvements, such as Figure 1 As shown in the figure, the first core pulling insert 3 is provided with a guide pressing block 7 above, the bottom end of the guide pressing block 7 is a guide inclined surface parallel to the core pulling direction of the first core pulling insert 3, the first core pulling insert 3 abuts against the guide inclined surface of the guide pressing block 7, and the second core pulling insert 5 is provided with a limiting pressing block 8 on the side away from the injection molding part and located in the core pulling direction of the second core pulling insert 5. The moving direction of the upper left of the first core pulling insert 3 is guided by the guide pressing block 8, so that the first core pulling insert 3 is prevented from moving up and down with the slider body, and the disassembly and assembly of the first core pulling insert 3 are facilitated, and the insert inclined guide hole 50 on the second core pulling insert 5 is prevented from being separated from the first bent pin 4, so that the reset of the second core pulling insert 5 after core pulling is ensured, and the disassembly and assembly of the second core pulling insert 5 are facilitated.

[0028] Further improvements, such as Figure 1 And Figure 2 As shown in the figure, the slider body 1 is provided with a slider sliding groove 11 on the side surface adjacent to the side surface where the inclined surface chamfer is located, and a sliding guide block 9 fixed on the mold is slidably arranged in the slider sliding groove 11. Preferably, the slider sliding groove 11 is provided with two, and the two slider sliding grooves 11 are correspondingly located on the front and rear sides of the slider body 1, and the sliding guide block 9 is arranged in each slider sliding groove 11. The sliding guide block 9 and the slider sliding groove 11 extend the guiding distance of the vertical sliding of the slider body 1.

[0029] It should be understood that those skilled in the art can make improvements or changes according to the above description, and all these improvements and changes shall belong to the protection scope of the appended claims of the utility model.

Claims

1. A core-pulling structure for synchronizing two core-pulling operations, comprising a slider body vertically sliding on a mold; characterized by, The slider body is provided with a driving mechanism for driving the slider body to slide vertically; the slider body is provided with an inclined chamfer at a position close to the bottom end on one side surface; the slider body is provided with a first core-pulling insert for cooperating with the slider body to slide and pull the core at the inclined chamfer; the first core-pulling insert is provided with a first bent pin at an end away from the inclined chamfer; the first bent pin is provided with a second core-pulling insert for cooperating with the first bent pin to move and pull the core.

2. A core pulling structure for synchronously pulling two cores according to claim 1, wherein A limiting sliding connection mechanism is arranged between the inclined chamfer of the slider body and the first core-pulling insert; the first core-pulling insert is limited to slide on the inclined chamfer of the slider body through the limiting sliding connection mechanism.

3. A core pulling arrangement for synchronously pulling two cores according to claim 2, characterized in that The limiting sliding connection mechanism comprises a sliding rail; the sliding rail is arranged on the inclined chamfer of the slider body; the first core-pulling insert is provided with an insert sliding groove; the sliding rail is matched to slide in the insert sliding groove.

4. A core pulling arrangement for synchronously pulling two cores according to claim 3, characterized in that The first core-pulling insert comprises a connecting portion and a core-pulling portion of a shaped product; one end of the connecting portion is an inclined surface structure matched with the inclined chamfer; the insert sliding groove is arranged on the inclined surface structure of the connecting portion; the core-pulling portion is arranged at an end of the connecting portion away from the inclined surface structure; the first bent pin is also arranged at an end of the connecting portion away from the inclined surface structure; the first bent pin is located above the core-pulling portion.

5. A core pulling arrangement for synchronously pulling two cores according to claim 3, wherein The sliding rail is a dovetail type structure or a reverse T type structure; the cross section of the insert sliding groove corresponds to a dovetail type structure or a reverse T type structure.

6. A core pulling arrangement for synchronously pulling two cores according to claim 1, characterized in that The driving mechanism comprises a second bent pin and an oil cylinder mounted on the mold; the slider body is provided with a slider inclined guide hole matched with the second bent pin; one end of the second bent pin is inserted into the slider inclined guide hole; the output shaft of the oil cylinder is connected to one end of the second bent pin away from the slider inclined guide hole.

7. A core pulling arrangement for synchronously pulling two cores according to claim 6, characterized in that Both the slider body and the second bent pin are provided with two; the output shaft of the oil cylinder is connected with a connecting rod; the two second bent pins are correspondingly arranged at opposite ends of the connecting rod; the ends of the two second bent pins away from the connecting rod are correspondingly inserted into the slider inclined guide holes of the two slider bodies.

8. A core pulling arrangement for synchronously pulling two cores according to claim 1, characterized in that The second core-pulling insert is provided with an insert inclined guide hole matched with the first bent pin; one end of the first bent pin away from the first core-pulling insert is inserted into the insert inclined guide hole.

9. The core pulling structure for synchronously pulling cores twice according to claim 1, characterized in that, A guide pressing block is arranged directly above the first core-pulling insert; the bottom end of the guide pressing block is a guide inclined surface parallel to the core-pulling direction of the first core-pulling insert; the first core-pulling insert abuts against the guide inclined surface of the guide pressing block; the second core-pulling insert is provided with a limiting pressing block in the core-pulling direction of the second core-pulling insert on the side away from the injection molding part.

10. A core pulling structure for synchronously pulling two cores according to claim 1, wherein The slider body is provided with a slider sliding groove on the side surface adjacent to the side surface where the inclined chamfer is located; a sliding guide block fixed on the mold is slidably arranged in the slider sliding groove.

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