Slide inclined core-pulling demoulding structure

Abstract

The utility model relates to a slide inclined core-pulling demoulding structure which comprises an oil cylinder, a T-shaped connecting block, a slide seat and a slide insert, the slide insert is obliquely connected to the slide seat, and the slide seat is further arranged between two slide pressing strips which are distributed in parallel in a sliding mode. The T-shaped connecting block is movably arranged on the slide seat in a limiting manner, the oil cylinder is connected with the T-shaped connecting block to drive the T-shaped connecting block to do linear motion on the slide seat, and the T-shaped connecting block drives the slide seat to move together when abutting against the slide seat in a limiting manner; the two slide pressing strips are respectively provided with a positioning groove, and two limiting blocks which are respectively positioned between the two slide pressing strips and the connecting block are movably arranged in the slide seat in a penetrating manner; when the T-shaped connecting block abuts against one ends of the two limiting blocks, the other ends of the two limiting blocks are correspondingly clamped into the two positioning grooves. When the T-shaped connecting block does not abut against one ends of the two limiting blocks, the other ends of the two limiting blocks correspondingly move out of the two positioning grooves; the slide seat is prevented from directly retreating during mold opening, excessive glue of products can be avoided, and the production cost is low.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and more specifically, to a sliding oblique core-pulling demolding structure. Background Technology

[0002] In the field of injection mold technology, when the hydraulic cylinder directly pulls the front mold slide in an injection mold, the slide seat retracts directly. The slide insert cannot be locked in place by the clamping force. Under the injection pressure, the slide insert easily retracts along with the slide seat, resulting in excess glue on the product, poor product quality control, and hindering production. To improve this situation, it is necessary to prevent the slide seat from retracting directly. In subsequent improvements, manufacturers typically consider using self-locking hydraulic cylinders to keep the slide seat in the correct position. However, self-locking hydraulic cylinders on the market are relatively expensive, leading to high manufacturing costs. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a sliding angled core-pulling demolding structure to address the above-mentioned defects of the prior art.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a sliding oblique core-pulling demolding structure, including a hydraulic cylinder, a T-shaped connecting block, a sliding seat, and a sliding insert. The sliding insert is obliquely connected to the sliding seat, and the sliding seat is also slidably disposed between two parallel sliding pressure strips. The T-shaped connecting block is movably and limitly disposed on the sliding seat. The hydraulic cylinder is connected to the T-shaped connecting block to drive the T-shaped connecting block to make linear movement on the sliding seat. When the T-shaped connecting block abuts against the sliding seat, it drives the sliding seat to move together. The two sliding pressure strips are respectively provided with positioning grooves on one side surface facing the sliding seat. Two limiting blocks are movably disposed in the sliding seat, respectively located between the two sliding pressure strips and the connecting block. When the T-shaped connecting block abuts against one end of the two limiting blocks, the other end of the two limiting blocks is correspondingly engaged in the two positioning grooves. When the T-shaped connecting block does not abut against one end of the two limiting blocks, the other end of the two limiting blocks is correspondingly displaced from the two positioning grooves.

[0005] In some embodiments, the travel seat is further provided with a travel limiting groove for accommodating the T-shaped connecting block, and the T-shaped connecting block is movably limited within the travel limiting groove.

[0006] In some embodiments, the travel seat is further provided with two through slots located on both sides of the travel limiting slot and corresponding to each other. Both through slots are connected to the travel limiting slot to accommodate two limiting blocks, and the two limiting blocks are correspondingly movably inserted into the two through slots.

[0007] In some embodiments, each of the two through slots is provided with a limiting pin, and each of the two limiting blocks is provided with a limiting groove on one side surface facing the two limiting pins; the two limiting pins extend into the two limiting grooves respectively to limit the travel of the two limiting blocks.

[0008] In some embodiments, the row seat is further provided with two through holes that communicate with two through slots respectively, and the two limiting pins are correspondingly fixedly inserted into the two through holes.

[0009] In some embodiments, each of the row position seats has a raised edge on one side surface facing the two row position pressure strips, and the two raised edges are respectively located above the two row position pressure strips.

[0010] In some embodiments, the two positioning grooves are respectively vertically disposed on two positioning pressure strips.

[0011] In some embodiments, the fixed end of the hydraulic cylinder is fixedly mounted on a mounting plate, and the piston rod of the hydraulic cylinder passes through the mounting plate and is fixedly inserted into the T-shaped connecting block.

[0012] In some embodiments, the T-shaped connecting block is provided with a slot, and the end of the piston rod away from the oil cylinder is adapted to be inserted into the slot.

[0013] In some embodiments, the slot is T-shaped.

[0014] The beneficial effects of this utility model are as follows: Unlike the prior art, the sliding oblique core-pulling demolding structure of this utility model uses the positioning cooperation of sliding pressure strips, T-shaped connecting blocks and limiting blocks to position the sliding seat. When the mold is opened, the T-shaped connecting block is first driven by the hydraulic cylinder to make a linear movement on the sliding seat, and the sliding seat does not move temporarily, which can prevent the sliding seat from moving backward directly when the mold is opened. When the T-shaped connecting block moves to abut against the limiting block of the sliding seat, it will drive the sliding seat to move backward together. During the movement of the T-shaped connecting block, it gradually stops abutting against the limiting blocks on both sides. The limiting blocks on both sides will release the positioning connection with the corresponding sliding pressure strip and move backward together with the sliding seat. The overall backward movement of the sliding seat makes the sliding insert disengage from the undercut surface of the product, effectively avoiding excessive glue on the product. The overall structure is simple and the production cost is reduced. Attached Figure Description

[0015] Figure 1 This is a top view schematic diagram of the sliding oblique core-pulling demolding structure in an embodiment of this utility model;

[0016] Figure 2 This is a side view schematic diagram of the sliding oblique core-pulling demolding structure in an embodiment of this utility model;

[0017] Figure 3 This is an exploded schematic diagram of the sliding oblique core-pulling demolding structure in an embodiment of this utility model;

[0018] Figure 4 This is another exploded view of the sliding oblique core-pulling demolding structure in this embodiment of the present invention;

[0019] Figure 5 This is an enlarged schematic diagram of part A in an embodiment of this utility model;

[0020] The labels and numbers in the diagram are as follows: Cylinder-1; T-shaped connecting block-2; Sliding seat-3; Sliding insert-4; Sliding pressure strip-5; Positioning groove-501; Limiting block-6; Stroke limiting groove-301; Through groove-302; Limiting pin-7; Limiting groove-601; Through hole-303; Protruding edge-31; Piston rod-11; Mounting plate-8; Slot-201. Detailed Implementation

[0021] The terms "first," "second," "third," and "fourth," etc., used in the specification, claims, and accompanying drawings of this utility model are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0022] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0023] "Multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0024] Furthermore, the terms indicating orientation, such as "up," "down," "front," "back," "left," "right," "upper end," and "lower end," are all based on the posture and position of the device or equipment described in this solution during normal use.

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, a clear and complete description will be provided below in conjunction with the technical solutions in the embodiments of this utility model. Obviously, the described embodiments are some, but not all, embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] This utility model embodiment provides a sliding oblique core-pulling demolding structure, such as Figures 1 to 5 As shown, the sliding oblique core-pulling demolding structure includes a hydraulic cylinder 1, a T-shaped connecting block 2, a sliding seat 3, and a sliding insert 4. The sliding insert 4 is obliquely connected to the sliding seat 3, and the sliding seat 3 is also slidably disposed between two parallel sliding pressure strips 5. The T-shaped connecting block 2 is movably limited on the sliding seat 3. The hydraulic cylinder 1 is connected to the T-shaped connecting block 2 to drive the T-shaped connecting block 2 to make linear motion on the sliding seat 3. When the T-shaped connecting block 2 and the sliding seat 3 are mutually restrained, the sliding seat 3 is moved together. Two sliding pressure strips 5 are respectively provided with positioning grooves 501 on one side surface facing the sliding seat 3. Two limiting blocks 6 are respectively located between the two sliding pressure strips 5 and the connecting block in the sliding seat 3. When the T-shaped connecting block 2 abuts against one end of the two limiting blocks 6, the other end of the two limiting blocks 6 is correspondingly inserted into the two positioning grooves 501. When the T-shaped connecting block 2 does not abut against one end of the two limiting blocks 6, the other end of the two limiting blocks 6 is correspondingly moved out of the two positioning grooves 501.

[0027] The sliding oblique core-pulling demolding structure of this utility model uses the positioning cooperation of the sliding pressure strip 5, the T-shaped connecting block 2 and the limiting block 6 to position the sliding seat 3. When the mold is opened, the T-shaped connecting block 2 is driven by the hydraulic cylinder 1 to make a linear movement on the sliding seat 3. The sliding seat 3 does not move temporarily, which can prevent the sliding seat 3 from moving backward directly when the mold is opened. When the T-shaped connecting block 2 moves to the limit position of the sliding seat 3, it will drive the sliding seat 3 to move backward together. During the movement of the T-shaped connecting block 2, it gradually stops abutting against the limiting blocks 6 on both sides. The limiting blocks 6 on both sides will eventually release the positioning connection with the corresponding sliding pressure strip 5 and move backward together with the sliding seat 3. The overall backward movement of the sliding seat 3 causes the sliding insert 4 to be released from the undercut surface of the product. The operation is simple, helps to reduce the production and manufacturing cost, and is suitable for widespread application.

[0028] Specifically, in this embodiment, the travel seat 3 is also provided with a travel limiting groove 301 for accommodating the T-shaped connecting block 2. The shape of the travel limiting groove 301 is as follows: Figure 3 , 4As shown, it is T-shaped. The T-shaped connecting block 2 is movably positioned within the travel limiting groove 301. There is a gap between the T-shaped connecting block 2 and the travel limiting groove 301, which is the travel distance of the T-shaped connecting block 2 within the travel limiting groove 301, allowing the T-shaped connecting block 2 to move a certain distance within the travel limiting groove 301.

[0029] Specifically, in this embodiment, the slide seat 3 is further provided with two through slots 302 located on both sides of the stroke limiting slot 301 and corresponding to each other. Both through slots 302 communicate with the stroke limiting slot 301 to accommodate two limiting blocks 6. The two limiting blocks 6 are movably inserted into the two through slots 302, allowing them to move in or out of their respective slots. The two through slots 302 correspond to each other, meaning their center lines are on the same straight line, ensuring that the two limiting blocks 6 can simultaneously abut against the T-shaped connecting block 2, thereby positioning the slide seat 3 in a suitable position. For example, in the mold-closed state, the two limiting blocks 6 are constrained by the relative force between the T-shaped connecting block 2 and the two slide pressure strips 5, and with the cooperation of the positioning groove 501, they play a positioning role for the slide seat 3.

[0030] Specifically, in this embodiment, each of the two through slots 302 is provided with a limiting pin 7, and each of the two limiting blocks 6 is provided with a limiting groove 601 on the side surface facing the two limiting pins 7. The two limiting pins 7 extend into the two limiting grooves 601 respectively to limit the travel of the two limiting blocks 6. For example, the limiting pins 7 are positioned below the limiting blocks 6, and correspondingly, the lower surface of the limiting blocks 6 is provided with a limiting groove 601. When the limiting blocks 6 are placed in the through slots 302, the upper ends of the limiting pins 7 extend into the limiting grooves 601. When the limiting blocks 6 are pushed and moved, the relative position of the limiting pins 7 in the limiting grooves 601 changes, and the limiting pins 7 are restricted within the limiting grooves 601. When the limiting blocks 6 move a certain distance, they will stop moving because the limiting grooves 601 are limited by the limiting pins 7. The position seat 3 is also provided with two through holes 303 that communicate with two through slots 302 respectively. Two limit pins 7 are fixedly inserted into the two through holes 303 to facilitate the adjustment of the position and height of the limit pins 7.

[0031] It should be noted that the length direction of the limiting groove 601 is the same as the length direction of the limiting block 6. The length of the limiting groove 601 should be such that the limiting block 6 can move appropriately between the sliding pressure strip 5 and the T-shaped connecting block 2.

[0032] Specifically, in this embodiment, each of the two sliding bases 3 has a raised edge 31 on one side surface facing the two sliding pressure strips 5, and both raised edges 31 are integrally connected to the sliding base 3. The two raised edges 31 are located above the two sliding pressure strips 5, ensuring that the sliding base 3 can move along a predetermined direction and is not prone to displacement, thus increasing the stability of the sliding base 3 during movement. The sliding pressure strips 5 are usually fastened to the corresponding plates inside the injection mold, which is prior art and will not be described in detail in this embodiment. Two positioning grooves 501 are vertically arranged on the two sliding pressure strips 5, and the upper and lower ends of each positioning groove 501 penetrate the upper and lower surfaces of the corresponding sliding pressure strip 5, facilitating assembly with the limiting block 6.

[0033] Specifically, in this embodiment, the fixed end of the hydraulic cylinder 1 is fixedly mounted on a mounting plate 8, and the piston rod 11 of the hydraulic cylinder 1 passes through the mounting plate 8 and is fixedly inserted into the T-shaped connecting block 2. Furthermore, the T-shaped connecting block 2 is provided with a slot 201, and the end of the piston rod 11 away from the hydraulic cylinder 1 is adapted to be inserted into the slot 201. The slot 201 is T-shaped.

[0034] In this embodiment, the end of the slide insert 4 furthest from the slide base 3 is connected to the example injection-molded product. It should be noted that the obliquely oriented layout of the slide insert 4 can be specifically referred to in the accompanying drawings. The structure of the slide insert 4 is relatively existing, and this embodiment does not impose specific limitations. In practical applications, it is possible to refer to existing technologies and design and select according to actual application needs.

[0035] The sliding oblique core-pulling demolding structure of this utility model can effectively solve the problem that the sliding insert 4 will squeeze the sliding seat 3 and retreat together with the oil cylinder 1 under injection pressure, resulting in excessive glue on the product. The overall structure is simple, which helps to reduce production and manufacturing costs and ensures product quality.

[0036] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A sliding oblique core-pulling demolding structure, characterized in that: The utility model provides a kind of movable row position device, including oil cylinder, T type connecting block, row position seat and row position insert, the row position insert is connected to row position seat obliquely, and the row position seat is also slid between two parallel distribution row position pressure strips;The T type connecting block is positioned and moves in the row position seat, the oil cylinder is connected with T type connecting block to drive T type connecting block to do linear motion on row position seat, and the T type connecting block is positioned and moved with row position seat when being resisted;Two the positioning recesses corresponding are equipped with in the side surface of row position seat towards row position seat, and two limit blocks are movably arranged in the row position seat and are located between two row position pressure strips and connecting block;When the T type connecting block is resisted with one end of two limit blocks, the other end of two limit blocks is correspondingly inserted into two positioning recesses;When the T type connecting block is not resisted with one end of two limit blocks, the other end of two limit blocks is correspondingly removed from two positioning recesses.

2. The row angle undercut demolding structure according to claim 1, characterized by: The T type connecting block is positioned and moves in the stroke limiting slot of row position seat.

3. The row angle undercut demolding structure according to claim 2, characterized by: Two through grooves are arranged in the row position seat and correspond to each other, and the two through grooves are communicated with the stroke limiting slot to correspond to accommodate two limit blocks, and two limit blocks are movably arranged in the two through grooves.

4. The row angle undercut demolding structure according to claim 3, characterized by: A limit pin is arranged in each of the two through grooves, and a limit recess is arranged on the side surface of each of the two limit blocks corresponding to the limit pin;Two limit pins are correspondingly inserted into two limit recesses to limit the stroke of two limit blocks respectively.

5. The row angle undercut demolding structure according to claim 4, characterized by: Two through holes are arranged in the row position seat and correspond to two through grooves, and two limit pins are correspondingly fixedly inserted into two through holes.

6. The moving point undercut demolding structure according to any one of claims 1 to 5, characterized in that: A convex edge is arranged on the side surface of the row position seat corresponding to each of the two row position pressure strips, and two convex edges are arranged above the two row position pressure strips.

7. The moving point undercut demolding structure according to any one of claims 1 to 5, characterized by: Two positioning recesses are vertically arranged on the two row position pressure strips respectively.

8. The row angle undercut demolding structure according to claim 1, characterized by: The fixed end of the oil cylinder is fixedly arranged on a mounting plate, and the piston rod of the oil cylinder is inserted into the T type connecting block through the mounting plate.

9. The row angle undercut demolding structure according to claim 8, characterized by: A clamping groove is arranged on the T type connecting block, and the end of the piston rod away from the oil cylinder is adapted to be clamped into the clamping groove.

10. The row angle undercut demolding structure according to claim 9, characterized by: The shape of the clamping groove is T-shaped.

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