A split-type angled ejector core-pulling block for injection molds

Abstract

This utility model belongs to the field of mold angled ejector technology, and in particular to a split angled ejector core-pulling block for injection molds. It includes an angled pin connecting rod, with a limiting mechanism sleeved on the outer wall of the pin connecting rod. An installation component is provided at the top of the pin connecting rod, and a rotating mechanism is provided at the bottom of the pin connecting rod. A mold seat frame is located at the bottom of the rotating mechanism. This utility model, through the design of the sliding column and sleeve, facilitates the disassembly of the angled pin connecting rod under external force. With the assistance of a second spring at the top, a second piston can push the pin connecting rod out, causing it to move into the telescopic sleeve shaft. Subsequently, the locking structure at the other end of the telescopic sleeve shaft is released, and the telescopic sleeve shaft is pushed out by the spring. A hydraulic cylinder and a movable contact shaft slide within an annular groove in the cavity. The bottom of the hydraulic cylinder is connected to the rotating seat plate, facilitating angle adjustment within the mold seat frame and allowing for convenient adjustment of the appropriate tilt angle. Furthermore, the structure is simple and easy to disassemble and maintain.

Description

Technical Field

[0001] This utility model belongs to the field of mold angled ejector technology, specifically relating to a split angled ejector core-pulling block for injection molds. Background Technology

[0002] The term "mold ejector," also known as "slanted pin" or "slanted ejector," is a common term used in the mold industry in the Pearl River Delta region, primarily by Hong Kong-funded mold factories. It refers to a mechanism used in mold design to form internal undercuts in products. It is suitable for relatively simple undercuts. When a plastic part has internal or external holes or side recesses that are different from the mold opening direction, which hinder the direct demolding of the plastic part, a slanted slide demolding mechanism must be used. This involves making the part with the side hole or side recess into a movable core. When demolding the plastic part, the movable core is first pulled out, and then the plastic part is ejected from the mold. The mechanism that completes the extraction and resetting of the movable core is called a core-pulling mechanism.

[0003] Traditional injection mold ejector blocks are usually manufactured separately. Different ejector blocks need to be replaced for different mold structures, and the structural design is relatively complex. When parts need to be replaced, it is difficult to replace them. Furthermore, if a part is damaged, the entire ejector block will need to be replaced, resulting in high maintenance costs and long maintenance cycles. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a split-type angled ejector core-pulling block for injection molds. To achieve the above objectives, it solves the problems that existing angled ejector blocks for injection molds require replacement and assembly according to different molds, and that the complex structure and damage to parts can affect the overall use.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a split-type inclined core-pulling block for injection molds, including an inclined pin connecting rod, a limiting mechanism sleeved on the outer wall of the inclined pin connecting rod, an installation component provided on the top of the inclined pin connecting rod, a rotating mechanism provided on the bottom of the inclined pin connecting rod, and a mold seat frame provided on the bottom of the rotating mechanism.

[0006] The limiting mechanism includes a limiting groove, a sleeve, a sliding column, a first spring, a locking hole, and a connecting rod locking ring. The outer surface of the inclined pin connecting rod is fitted with a connecting rod locking ring. Two locking holes are provided on one side of the connecting rod locking ring, which is distributed vertically. A set of limiting grooves is provided on one side wall of the inclined pin connecting rod. A sleeve is provided in the two limiting grooves. A sliding column is slidably connected in the sleeve. The sliding column is inserted into the locking hole. A first spring is provided in the limiting groove and is located on the outer surface of the sleeve and the sliding column.

[0007] Furthermore, the sleeve is provided with a spring, and the outer end of the spring is connected to the sliding column.

[0008] Furthermore, the rotating mechanism includes a sleeve shaft, a cavity, an annular groove, a rotating base plate, a hydraulic cylinder, and a movable contact shaft. The bottom of the inclined pin connecting rod is fixedly connected to the sleeve shaft. A cavity is formed at the lower opening slot of the sleeve shaft. An annular groove is formed on the inner wall of the cavity. A rotating base plate is arranged inside the sleeve shaft. A hydraulic cylinder is arranged on the rotating base plate. Movable contact shafts are provided on both sides of the inner cavity of the hydraulic cylinder. The outer end of the movable contact shaft is in sliding contact with the annular groove.

[0009] Furthermore, the installation assembly includes a telescopic sleeve shaft, a mold groove top shaft, and a loading / unloading groove. The top of the inclined pin connecting rod is connected to the telescopic sleeve shaft, the top of the telescopic sleeve shaft is provided with the mold groove top shaft, and the top of the mold groove top shaft has a loading / unloading groove. The telescopic sleeve shaft and the mold groove top shaft are an integrated structure.

[0010] Furthermore, a second spring is provided inside the telescopic sleeve shaft, a first piston is provided at the upper end of the second spring, and a second piston is provided at the bottom of the second spring.

[0011] Furthermore, the second spring is connected to the telescopic sleeve shaft via the first piston, and the second spring is connected to the inclined pin connecting rod via the second piston.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention, through the design of the sliding column and sleeve, facilitates the disassembly of the inclined pin connecting rod under external force. Simultaneously, the internal first spring enhances the buffering effect. In conjunction with the second spring at the top, the second piston extends the inclined pin connecting rod upwards, causing it to move inwards towards the telescopic sleeve shaft. Subsequently, the locking structure at the other end of the telescopic sleeve shaft is released, allowing the shaft to be pushed out by the spring. The hydraulic cylinder and movable contact shaft allow sliding within the annular groove in the cavity. Furthermore, the hydraulic system connects to the bottom rotating base, enabling angle adjustment of the bottom rotating base within the mold frame, thus allowing for adjustment to a suitable tilt angle. The design is simple and easy to disassemble and maintain. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a schematic diagram of the external structure of this utility model;

[0016] Figure 2 This is a schematic diagram showing the structural components of this utility model.

[0017] Figure 3This is an enlarged schematic diagram of structure A of this utility model;

[0018] Figure 4 This is an enlarged view of structure B of this utility model;

[0019] Figure 5 This is an exploded view of the installation component structure of this utility model.

[0020] In the diagram: 1. Inclined pin connecting rod; 2. Rotating mechanism; 201. Sleeve shaft; 202. Hydraulic cylinder; 203. Rotating base plate; 204. Movable contact shaft; 205. Annular groove; 206. Cavity; 3. Limiting mechanism; 301. Limiting groove; 302. Sleeve; 303. Sliding column; 304. First spring; 305. Connecting rod locking ring; 306. Locking socket; 4. Mounting assembly; 401. Telescopic sleeve shaft; 402. Second spring; 403. First piston; 404. Second piston; 405. Mold groove top shaft; 406. Loading and unloading groove; 5. Mold base frame. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1 to 5 This utility model provides a technical solution: a split inclined core-pulling block for injection mold, including an inclined pin connecting rod 1, a limiting mechanism 3 sleeved on the outer wall of the inclined pin connecting rod 1, an installation component 4 provided on the top of the inclined pin connecting rod 1, a rotating mechanism 2 provided on the bottom of the inclined pin connecting rod 1, and a mold seat frame 5 provided on the bottom of the rotating mechanism 2.

[0023] The limiting mechanism 3 includes a limiting groove 301, a sleeve 302, a sliding column 303, a first spring 304, a locking hole 306, and a connecting rod locking ring 305. The outer surface of the inclined pin connecting rod 1 is fitted with a connecting rod locking ring 305. Two vertically distributed locking holes 306 are opened on one side of the connecting rod locking ring 305. A set of limiting grooves 301 are opened on one side wall of the inclined pin connecting rod 1. A sleeve 302 is provided in the two limiting grooves 301. A sliding column 303 is slidably connected in the sleeve 302. The sliding column 303 is inserted into the locking hole 306. A first spring 304 is provided in the limiting groove 301 and is located on the outer surface of the sleeve 302 and the sliding column 303.

[0024] Specifically, the sliding pin 303 and the sleeve 302 can be connected to the locking hole 306 on the external connecting rod lock ring 305, and the first spring 304 can abut against the external connecting rod lock ring 305.

[0025] Wherein: a spring is provided inside the sleeve 302, and the outer end of the spring is connected to the sliding column 303;

[0026] Specifically, the sleeve 302 is equipped with a spring that can abut against the sliding column 303. When subjected to external force, the inward compression of the sliding column 303 can be achieved by the spring to achieve its limiting and buffering process.

[0027] The rotating mechanism 2 includes a sleeve shaft 201, a cavity 206, an annular groove 205, a rotating seat 203, a hydraulic cylinder 202, and a movable contact shaft 204. The bottom of the inclined pin connecting rod 1 is fixedly connected to the sleeve shaft 201. The cavity 206 is provided at the lower opening slot of the sleeve shaft 201. The annular groove 205 is provided on the inner wall of the cavity 206. The rotating seat 203 is provided inside the sleeve shaft 201. The hydraulic cylinder 202 is provided on the rotating seat 203. The movable contact shaft 204 is provided on both sides of the inner cavity of the hydraulic cylinder 202. The outer end of the movable contact shaft 204 slides in contact with the annular groove 205.

[0028] Specifically, the rotating mechanism 2 can easily accommodate the rotating base plate 203 in the cavity 206 inside the sleeve shaft 201. The hydraulic cylinder 202 on the rotating base plate 203 can slide in the annular groove 205 in conjunction with the external movable contact shaft 204. At the same time, the bottom of the rotating base plate 203 can be connected to the mold base frame 5, which can easily achieve angle adjustment.

[0029] The installation component 4 includes a telescopic sleeve shaft 401, a mold groove top shaft 405, and a loading and unloading groove 406. The top of the inclined pin connecting rod 1 is connected to the telescopic sleeve shaft 401, the top of the telescopic sleeve shaft 401 is provided with the mold groove top shaft 405, and the top of the mold groove top shaft 405 is provided with the loading and unloading groove 406. The telescopic sleeve shaft 401 and the mold groove top shaft 405 are an integrated structure.

[0030] Specifically, different ejector block structures can be installed through the loading and unloading slot 406, and the telescopic sleeve shaft 401 and the mold slot top shaft 405 are an integrated structure.

[0031] Wherein: a second spring 402 is provided inside the telescopic sleeve shaft 401, a first piston 403 is provided at the upper end of the second spring 402, and a second piston 404 is provided at the bottom of the second spring 402;

[0032] Specifically, the second spring 402 installed inside the telescopic sleeve shaft 401, along with the first piston 403 and the second piston 404 installed at both ends of the second spring 402, can provide a certain degree of buffering.

[0033] Wherein: the second spring 402 is connected to the telescopic sleeve shaft 401 through the first piston 403, and the second spring 402 is connected to the inclined pin connecting rod 1 through the second piston 404.

[0034] The working principle of the above embodiment is as follows: In use, the mold base frame 5 is placed at the bottom of the mold, the rotating base plate 203 is fixed inside the base frame, and then the inclined pin connecting rod 1 is assembled into the cavity inside the mold. The locking hole 306 outside the connecting rod locking ring 305 is used to connect and fix it with the threaded connection inside the mold, thus achieving directional fixation. Furthermore, the sleeve shaft 201 connected to the bottom of the inclined pin connecting rod 1 can be adjusted at a certain angle using the hydraulic cylinder 202, the movable contact shaft 204, and the rotating base plate 203 inside the sleeve shaft 201. Simply fix the rotating base plate 203 inside the mold base frame 5, and then… The inclined pin connecting rod 1 can be adjusted to a suitable angle by rotating and swinging with the fixed point of the mold base frame 5 as the fulcrum. The mold groove top shaft 405 and loading and unloading groove 406 set above can be adapted to various ejection block structures. At the same time, a second spring 402 is set inside the telescopic sleeve shaft 401. One end of the second spring 402 is connected to the telescopic sleeve shaft 401, and the other end is connected to the inclined pin connecting rod 1. When ejecting, the inclined pin connecting rod 1 moves into the telescopic sleeve shaft 401. Then the locking structure of the other end of the telescopic sleeve shaft 401 is released, and the telescopic sleeve shaft 401 will be ejected by the second spring 402.

[0035] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A split type angle ejector block of injection mold, comprising an angle pin connecting rod (1), characterized in that: The outer wall of the inclined pin connecting rod (1) is fitted with a limiting mechanism (3), the top of the inclined pin connecting rod (1) is provided with an installation component (4), the bottom of the inclined pin connecting rod (1) is provided with a rotating mechanism (2), and the bottom of the rotating mechanism (2) is provided with a mold seat frame (5). The limiting mechanism (3) includes a limiting groove (301), a sleeve (302), a sliding column (303), a first spring (304), a locking hole (306), and a connecting rod locking ring (305). The outer surface of the inclined pin connecting rod (1) is fitted with a connecting rod locking ring (305). Two locking holes (306) are provided on one side of the connecting rod locking ring (305). A set of limiting grooves (301) is provided on one side wall of the inclined pin connecting rod (1). A sleeve (302) is provided in the two limiting grooves (301). A sliding column (303) is slidably connected in the sleeve (302). The sliding column (303) is inserted into the locking hole (306). A first spring (304) is provided in the limiting groove (301). The first spring (304) is provided on the outer surface of the sleeve (302) and the sliding column (303).

2. The split-type inclined core-pulling block for injection molds according to claim 1, characterized in that: The sleeve (302) is provided with a spring, and the outer end of the spring is connected to the slide (303).

3. The split-type inclined core-pulling block for injection molds according to claim 1, characterized in that: The rotating mechanism (2) includes a sleeve shaft (201), a cavity (206), an annular groove (205), a rotating seat (203), a hydraulic cylinder (202), and a movable contact shaft (204). The bottom of the inclined pin connecting rod (1) is fixedly connected to the sleeve shaft (201). The cavity (206) is provided at the lower opening slot of the sleeve shaft (201). The annular groove (205) is provided on the inner wall of the cavity (206). The rotating seat (203) is provided inside the sleeve shaft (201). The hydraulic cylinder (202) is provided on the rotating seat (203). The movable contact shaft (204) is provided on both sides of the inner cavity of the hydraulic cylinder (202). The outer end of the movable contact shaft (204) is in sliding contact with the annular groove (205).

4. The split-type inclined core-pulling block for injection molds according to claim 1, characterized in that: The installation assembly (4) includes a telescopic sleeve shaft (401), a mold groove top shaft (405), and a loading and unloading groove (406). The top of the inclined pin connecting rod (1) is connected to the telescopic sleeve shaft (401), the top of the telescopic sleeve shaft (401) is provided with the mold groove top shaft (405), and the top of the mold groove top shaft (405) is provided with the loading and unloading groove (406). The telescopic sleeve shaft (401) and the mold groove top shaft (405) are an integrated structure.

5. A split-type inclined core-pulling block for injection molds according to claim 4, characterized in that: The telescopic sleeve shaft (401) is provided with a second spring (402) inside, a first piston (403) is provided at the upper end of the second spring (402), and a second piston (404) is provided at the bottom of the second spring (402).

6. A split-type inclined core-pulling block for injection molds according to claim 5, characterized in that: The second spring (402) is connected to the telescopic sleeve shaft (401) via the first piston (403), and the second spring (402) is connected to the inclined pin connecting rod (1) via the second piston (404).

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